mirror of
https://github.com/samba-team/samba.git
synced 2025-07-31 20:22:15 +03:00
s4-python: Move dnspython to lib/, like the other Python modules
This also avoids it from being installed if it's already present on the system.
This commit is contained in:
@ -30,7 +30,7 @@ $(eval $(foreach pyfile, $(_PY_FILES),$(call python_py_module_template,$(patsubs
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EPYDOC_OPTIONS = --no-private --url http://www.samba.org/ --no-sourcecode
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epydoc:: pythonmods
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PYTHONPATH=$(pythonbuilddir):../lib/subunit/python epydoc $(EPYDOC_OPTIONS) samba tdb ldb subunit testtools
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PYTHONPATH=$(pythonbuilddir):../lib/subunit/python epydoc $(EPYDOC_OPTIONS) samba tdb ldb subunit testtools dnspython
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install:: installpython
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@ -17,34 +17,15 @@
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import sys, os
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import os, sys
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def samba_find_external(directory):
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'''insert into out module search path the path to an
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external library'''
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for p in sys.path:
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dir = os.path.join(p, directory)
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if os.path.isdir(dir):
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sys.path.insert(0, dir)
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return
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# finally try in the local directory, to handle in-tree testing
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dir = os.path.join("scripting/python", directory)
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if os.path.isdir(dir):
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sys.path.insert(0, dir)
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return
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print "Failed to find external python library %s" % directory
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raise
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def samba_external_dns_resolver():
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def dns_resolver():
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'''try and import the dns.resolver library, and if it fails
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then use a local copy from the external directory'''
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try:
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import dns.resolver as dns
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except:
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samba_find_external("samba_external/dnspython")
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except ImportError:
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), "../../../../lib/dnspython"))
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import dns.resolver as dns
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return dns
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|
File diff suppressed because it is too large
Load Diff
@ -1,14 +0,0 @@
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Copyright (C) 2001-2003 Nominum, Inc.
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose with or without fee is hereby granted,
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provided that the above copyright notice and this permission notice
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appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
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||||
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
@ -1,28 +0,0 @@
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Metadata-Version: 1.1
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Name: dnspython
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Version: 1.8.0
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Summary: DNS toolkit
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Home-page: http://www.dnspython.org
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Author: Bob Halley
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Author-email: halley@dnspython.org
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License: BSD-like
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Download-URL: http://www.dnspython.org/kits/1.8.0/dnspython-1.8.0.tar.gz
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Description: dnspython is a DNS toolkit for Python. It supports almost all
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record types. It can be used for queries, zone transfers, and dynamic
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updates. It supports TSIG authenticated messages and EDNS0.
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dnspython provides both high and low level access to DNS. The high
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level classes perform queries for data of a given name, type, and
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class, and return an answer set. The low level classes allow
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direct manipulation of DNS zones, messages, names, and records.
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Platform: UNKNOWN
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Classifier: Development Status :: 5 - Production/Stable
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Classifier: Intended Audience :: Developers
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Classifier: Intended Audience :: System Administrators
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Classifier: License :: Freeware
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Classifier: Operating System :: Microsoft :: Windows :: Windows 95/98/2000
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Classifier: Operating System :: POSIX
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Classifier: Programming Language :: Python
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Classifier: Topic :: Internet :: Name Service (DNS)
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Classifier: Topic :: Software Development :: Libraries :: Python Modules
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Provides: dns
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@ -1,347 +0,0 @@
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dnspython
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INTRODUCTION
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dnspython is a DNS toolkit for Python. It supports almost all record
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types. It can be used for queries, zone transfers, and dynamic
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updates. It supports TSIG authenticated messages and EDNS0.
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dnspython provides both high and low level access to DNS. The high
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level classes perform queries for data of a given name, type, and
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class, and return an answer set. The low level classes allow direct
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manipulation of DNS zones, messages, names, and records.
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To see a few of the ways dnspython can be used, look in the examples/
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directory.
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dnspython originated at Nominum where it was developed to facilitate
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the testing of DNS software. Nominum has generously allowed it to be
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open sourced under a BSD-style license, and helps support its future
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development by continuing to employ the author :).
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ABOUT THIS RELEASE
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This is dnspython 1.8.0
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New since 1.7.1:
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Support for hmac-sha1, hmac-sha224, hmac-sha256, hmac-sha384
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and hmac-sha512 has been contributed by Kevin Chen.
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The tokenizer's tokens are now Token objects instead of (type,
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value) tuples.
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Bugs fixed since 1.7.1:
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Escapes in masterfiles now work correctly. Previously they
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were only working correctly when the text involved was part of
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a domain name.
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When constructing a DDNS update, if the present() method was
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used with a single rdata, a zero TTL was not added.
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The entropy pool needed locking to be thread safe.
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The entropy pool's reading of /dev/random could cause
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dnspython to block.
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The entropy pool did buffered reads, potentially consuming more
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randomness than we needed.
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The entropy pool did not seed with high quality randomness on
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Windows.
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SRV records were compared incorrectly.
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In the e164 query function, the resolver parameter was not
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used.
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New since 1.7.0:
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Nothing
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Bugs fixed since 1.7.0:
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The 1.7.0 kitting process inadventently omitted the code for the
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DLV RR.
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Negative DDNS prerequisites are now handled correctly.
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New since 1.6.0:
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Rdatas now have a to_digestable() method, which returns the
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DNSSEC canonical form of the rdata, suitable for use in
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signature computations.
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The NSEC3, NSEC3PARAM, DLV, and HIP RR types are now supported.
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An entropy module has been added and is used to randomize query ids.
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EDNS0 options are now supported.
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UDP IXFR is now supported.
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The wire format parser now has a 'one_rr_per_rrset' mode, which
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suppresses the usual coalescing of all RRs of a given type into a
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single RRset.
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Various helpful DNSSEC-related constants are now defined.
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The resolver's query() method now has an optional 'source' parameter,
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allowing the source IP address to be specified.
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Bugs fixed since 1.6.0:
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On Windows, the resolver set the domain incorrectly.
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DS RR parsing only allowed one Base64 chunk.
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TSIG validation didn't always use absolute names.
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NSEC.to_text() only printed the last window.
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We did not canonicalize IPv6 addresses before comparing them; we
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would thus treat equivalent but different textual forms, e.g.
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"1:00::1" and "1::1" as being non-equivalent.
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If the peer set a TSIG error, we didn't raise an exception.
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Some EDNS bugs in the message code have been fixed (see the ChangeLog
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for details).
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New since 1.5.0:
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Added dns.inet.is_multicast().
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Bugs fixed since 1.5.0:
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If select() raises an exception due to EINTR, we should just
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select() again.
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If the queried address is a multicast address, then don't
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check that the address of the response is the same as the
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address queried.
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NAPTR comparisons didn't compare the preference field due to a
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typo.
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Testing of whether a Windows NIC is enabled now works on Vista
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thanks to code contributed by Paul Marks.
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New since 1.4.0:
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Answer objects now support more of the python sequence
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protocol, forwarding the requests to the answer rrset.
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E.g. "for a in answer" is equivalent to "for a in
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answer.rrset", "answer[i]" is equivalent to "answer.rrset[i]",
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and "answer[i:j]" is equivalent to "answer.rrset[i:j]".
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Making requests using EDNS, including indicating DNSSEC awareness,
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is now easier. For example, you can now say:
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q = dns.message.make_query('www.dnspython.org', 'MX',
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want_dnssec=True)
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dns.query.xfr() can now be used for IXFR.
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Support has been added for the DHCID, IPSECKEY, and SPF RR types.
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UDP messages from unexpected sources can now be ignored by
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setting ignore_unexpected to True when calling dns.query.udp.
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Bugs fixed since 1.4.0:
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If /etc/resolv.conf didn't exist, we raised an exception
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instead of simply using the default resolver configuration.
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In dns.resolver.Resolver._config_win32_fromkey(), we were
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passing the wrong variable to self._config_win32_search().
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New since 1.3.5:
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You can now convert E.164 numbers to/from their ENUM name
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forms:
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>>> import dns.e164
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>>> n = dns.e164.from_e164("+1 555 1212")
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>>> n
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<DNS name 2.1.2.1.5.5.5.1.e164.arpa.>
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>>> dns.e164.to_e164(n)
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'+15551212'
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You can now convert IPv4 and IPv6 address to/from their
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corresponding DNS reverse map names:
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>>> import dns.reversename
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>>> n = dns.reversename.from_address("127.0.0.1")
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>>> n
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<DNS name 1.0.0.127.in-addr.arpa.>
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>>> dns.reversename.to_address(n)
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'127.0.0.1'
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You can now convert between Unicode strings and their IDN ACE
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form:
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>>> n = dns.name.from_text(u'les-\u00e9l\u00e8ves.example.')
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>>> n
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<DNS name xn--les-lves-50ai.example.>
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>>> n.to_unicode()
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u'les-\xe9l\xe8ves.example.'
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The origin parameter to dns.zone.from_text() and dns.zone.to_text()
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is now optional. If not specified, the origin will be taken from
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the first $ORIGIN statement in the master file.
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Sanity checking of a zone can be disabled; this is useful when
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working with files which are zone fragments.
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Bugs fixed since 1.3.5:
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The correct delimiter was not used when retrieving the
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list of nameservers from the registry in certain versions of
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windows.
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The floating-point version of latitude and longitude in LOC RRs
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(float_latitude and float_longitude) had incorrect signs for
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south latitudes and west longitudes.
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BIND 8 TTL syntax is now accepted in all TTL-like places (i.e.
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SOA fields refresh, retry, expire, and minimum; SIG/RRSIG
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field original_ttl).
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TTLs are now bounds checked when their text form is parsed,
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and their values must be in the closed interval [0, 2^31 - 1].
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New since 1.3.4:
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In the resolver, if time goes backward a little bit, ignore
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it.
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zone_for_name() has been added to the resolver module. It
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returns the zone which is authoritative for the specified
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name, which is handy for dynamic update. E.g.
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import dns.resolver
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print dns.resolver.zone_for_name('www.dnspython.org')
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will output "dnspython.org." and
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print dns.resolver.zone_for_name('a.b.c.d.e.f.example.')
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will output ".".
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The default resolver can be fetched with the
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get_default_resolver() method.
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You can now get the parent (immediate superdomain) of a name
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by using the parent() method.
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|
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Zone.iterate_rdatasets() and Zone.iterate_rdatas() now have
|
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a default rdtype of dns.rdatatype.ANY like the documentation
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says.
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A Dynamic DNS example, ddns.py, has been added.
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New since 1.3.3:
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The source address and port may now be specified when calling
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dns.query.{udp,tcp,xfr}.
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|
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The resolver now does exponential backoff each time it runs
|
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through all of the nameservers.
|
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|
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Rcodes which indicate a nameserver is likely to be a
|
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"permanent failure" for a query cause the nameserver to be removed
|
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from the mix for that query.
|
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|
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New since 1.3.2:
|
||||
|
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dns.message.Message.find_rrset() now uses an index, vastly
|
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improving the from_wire() performance of large messages such
|
||||
as zone transfers.
|
||||
|
||||
Added dns.message.make_response(), which creates a skeletal
|
||||
response for the specified query.
|
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|
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Added opcode() and set_opcode() convenience methods to the
|
||||
dns.message.Message class. Added the request_payload
|
||||
attribute to the Message class.
|
||||
|
||||
The 'file' parameter of dns.name.Name.to_wire() is now
|
||||
optional; if omitted, the wire form will be returned as the
|
||||
value of the function.
|
||||
|
||||
dns.zone.from_xfr() in relativization mode incorrectly set
|
||||
zone.origin to the empty name.
|
||||
|
||||
The masterfile parser incorrectly rejected TXT records where a
|
||||
value was not quoted.
|
||||
|
||||
New since 1.3.1:
|
||||
|
||||
The NSEC format doesn't allow specifying types by number, so
|
||||
we shouldn't either. (Using the unknown type format is still
|
||||
OK though.)
|
||||
|
||||
The resolver wasn't catching dns.exception.Timeout, so a timeout
|
||||
erroneously caused the whole resolution to fail instead of just
|
||||
going on to the next server.
|
||||
|
||||
The renderer module didn't import random, causing an exception
|
||||
to be raised if a query id wasn't provided when a Renderer was
|
||||
created.
|
||||
|
||||
The conversion of LOC milliseconds values from text to binary was
|
||||
incorrect if the length of the milliseconds string was not 3.
|
||||
|
||||
New since 1.3.0:
|
||||
|
||||
Added support for the SSHFP type.
|
||||
|
||||
New since 1.2.0:
|
||||
|
||||
Added support for new DNSSEC types RRSIG, NSEC, and DNSKEY.
|
||||
|
||||
This release fixes all known bugs.
|
||||
|
||||
See the ChangeLog file for more detailed information on changes since
|
||||
the prior release.
|
||||
|
||||
|
||||
REQUIREMENTS
|
||||
|
||||
Python 2.2 or later.
|
||||
|
||||
|
||||
INSTALLATION
|
||||
|
||||
To build and install dnspython, type
|
||||
|
||||
python setup.py install
|
||||
|
||||
|
||||
HOME PAGE
|
||||
|
||||
For the latest in releases, documentation, and information, visit the
|
||||
dnspython home page at
|
||||
|
||||
http://www.dnspython.org/
|
||||
|
||||
|
||||
|
||||
DOCUMENTATION
|
||||
|
||||
Documentation is sparse at the moment. Use pydoc, or read the HTML
|
||||
documentation at the dnspython home page, or download the HTML
|
||||
documentation.
|
||||
|
||||
|
||||
BUG REPORTS
|
||||
|
||||
Bug reports may be sent to bugs@dnspython.org
|
||||
|
||||
|
||||
MAILING LISTS
|
||||
|
||||
A number of mailing lists are available. Visit the dnspython home
|
||||
page to subscribe or unsubscribe.
|
@ -1,17 +0,0 @@
|
||||
Tutorial documentation
|
||||
|
||||
More examples
|
||||
|
||||
It would be nice to have a tokenizer that used regular expressions
|
||||
because it would be faster.
|
||||
|
||||
Teach the resolver about DNAME (right now it relies on the server adding
|
||||
synthesized CNAMEs)
|
||||
|
||||
Add TKEY support.
|
||||
|
||||
TSIG works, but needs cleaning up -- probably better encapsulation of
|
||||
TSIG state to make things much simpler and easier to use.
|
||||
|
||||
Pickling support.
|
||||
|
@ -1,52 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""dnspython DNS toolkit"""
|
||||
|
||||
__all__ = [
|
||||
'dnssec',
|
||||
'e164',
|
||||
'edns',
|
||||
'entropy',
|
||||
'exception',
|
||||
'flags',
|
||||
'inet',
|
||||
'ipv4',
|
||||
'ipv6',
|
||||
'message',
|
||||
'name',
|
||||
'namedict',
|
||||
'node',
|
||||
'opcode',
|
||||
'query',
|
||||
'rcode',
|
||||
'rdata',
|
||||
'rdataclass',
|
||||
'rdataset',
|
||||
'rdatatype',
|
||||
'renderer',
|
||||
'resolver',
|
||||
'reversename',
|
||||
'rrset',
|
||||
'set',
|
||||
'tokenizer',
|
||||
'tsig',
|
||||
'tsigkeyring',
|
||||
'ttl',
|
||||
'rdtypes',
|
||||
'update',
|
||||
'version',
|
||||
'zone',
|
||||
]
|
@ -1,72 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""Common DNSSEC-related functions and constants."""
|
||||
|
||||
RSAMD5 = 1
|
||||
DH = 2
|
||||
DSA = 3
|
||||
ECC = 4
|
||||
RSASHA1 = 5
|
||||
DSANSEC3SHA1 = 6
|
||||
RSASHA1NSEC3SHA1 = 7
|
||||
RSASHA256 = 8
|
||||
RSASHA512 = 10
|
||||
INDIRECT = 252
|
||||
PRIVATEDNS = 253
|
||||
PRIVATEOID = 254
|
||||
|
||||
_algorithm_by_text = {
|
||||
'RSAMD5' : RSAMD5,
|
||||
'DH' : DH,
|
||||
'DSA' : DSA,
|
||||
'ECC' : ECC,
|
||||
'RSASHA1' : RSASHA1,
|
||||
'DSANSEC3SHA1' : DSANSEC3SHA1,
|
||||
'RSASHA1NSEC3SHA1' : RSASHA1NSEC3SHA1,
|
||||
'RSASHA256' : RSASHA256,
|
||||
'RSASHA512' : RSASHA512,
|
||||
'INDIRECT' : INDIRECT,
|
||||
'PRIVATEDNS' : PRIVATEDNS,
|
||||
'PRIVATEOID' : PRIVATEOID,
|
||||
}
|
||||
|
||||
# We construct the inverse mapping programmatically to ensure that we
|
||||
# cannot make any mistakes (e.g. omissions, cut-and-paste errors) that
|
||||
# would cause the mapping not to be true inverse.
|
||||
|
||||
_algorithm_by_value = dict([(y, x) for x, y in _algorithm_by_text.iteritems()])
|
||||
|
||||
class UnknownAlgorithm(Exception):
|
||||
"""Raised if an algorithm is unknown."""
|
||||
pass
|
||||
|
||||
def algorithm_from_text(text):
|
||||
"""Convert text into a DNSSEC algorithm value
|
||||
@rtype: int"""
|
||||
|
||||
value = _algorithm_by_text.get(text.upper())
|
||||
if value is None:
|
||||
value = int(text)
|
||||
return value
|
||||
|
||||
def algorithm_to_text(value):
|
||||
"""Convert a DNSSEC algorithm value to text
|
||||
@rtype: string"""
|
||||
|
||||
text = _algorithm_by_value.get(value)
|
||||
if text is None:
|
||||
text = str(value)
|
||||
return text
|
@ -1,79 +0,0 @@
|
||||
# Copyright (C) 2006, 2007, 2009 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""DNS E.164 helpers
|
||||
|
||||
@var public_enum_domain: The DNS public ENUM domain, e164.arpa.
|
||||
@type public_enum_domain: dns.name.Name object
|
||||
"""
|
||||
|
||||
import dns.exception
|
||||
import dns.name
|
||||
import dns.resolver
|
||||
|
||||
public_enum_domain = dns.name.from_text('e164.arpa.')
|
||||
|
||||
def from_e164(text, origin=public_enum_domain):
|
||||
"""Convert an E.164 number in textual form into a Name object whose
|
||||
value is the ENUM domain name for that number.
|
||||
@param text: an E.164 number in textual form.
|
||||
@type text: str
|
||||
@param origin: The domain in which the number should be constructed.
|
||||
The default is e164.arpa.
|
||||
@type: dns.name.Name object or None
|
||||
@rtype: dns.name.Name object
|
||||
"""
|
||||
parts = [d for d in text if d.isdigit()]
|
||||
parts.reverse()
|
||||
return dns.name.from_text('.'.join(parts), origin=origin)
|
||||
|
||||
def to_e164(name, origin=public_enum_domain, want_plus_prefix=True):
|
||||
"""Convert an ENUM domain name into an E.164 number.
|
||||
@param name: the ENUM domain name.
|
||||
@type name: dns.name.Name object.
|
||||
@param origin: A domain containing the ENUM domain name. The
|
||||
name is relativized to this domain before being converted to text.
|
||||
@type: dns.name.Name object or None
|
||||
@param want_plus_prefix: if True, add a '+' to the beginning of the
|
||||
returned number.
|
||||
@rtype: str
|
||||
"""
|
||||
if not origin is None:
|
||||
name = name.relativize(origin)
|
||||
dlabels = [d for d in name.labels if (d.isdigit() and len(d) == 1)]
|
||||
if len(dlabels) != len(name.labels):
|
||||
raise dns.exception.SyntaxError('non-digit labels in ENUM domain name')
|
||||
dlabels.reverse()
|
||||
text = ''.join(dlabels)
|
||||
if want_plus_prefix:
|
||||
text = '+' + text
|
||||
return text
|
||||
|
||||
def query(number, domains, resolver=None):
|
||||
"""Look for NAPTR RRs for the specified number in the specified domains.
|
||||
|
||||
e.g. lookup('16505551212', ['e164.dnspython.org.', 'e164.arpa.'])
|
||||
"""
|
||||
if resolver is None:
|
||||
resolver = dns.resolver.get_default_resolver()
|
||||
for domain in domains:
|
||||
if isinstance(domain, (str, unicode)):
|
||||
domain = dns.name.from_text(domain)
|
||||
qname = dns.e164.from_e164(number, domain)
|
||||
try:
|
||||
return resolver.query(qname, 'NAPTR')
|
||||
except dns.resolver.NXDOMAIN:
|
||||
pass
|
||||
raise dns.resolver.NXDOMAIN
|
@ -1,142 +0,0 @@
|
||||
# Copyright (C) 2009 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""EDNS Options"""
|
||||
|
||||
NSID = 3
|
||||
|
||||
class Option(object):
|
||||
"""Base class for all EDNS option types.
|
||||
"""
|
||||
|
||||
def __init__(self, otype):
|
||||
"""Initialize an option.
|
||||
@param rdtype: The rdata type
|
||||
@type rdtype: int
|
||||
"""
|
||||
self.otype = otype
|
||||
|
||||
def to_wire(self, file):
|
||||
"""Convert an option to wire format.
|
||||
"""
|
||||
raise NotImplementedError
|
||||
|
||||
def from_wire(cls, otype, wire, current, olen):
|
||||
"""Build an EDNS option object from wire format
|
||||
|
||||
@param otype: The option type
|
||||
@type otype: int
|
||||
@param wire: The wire-format message
|
||||
@type wire: string
|
||||
@param current: The offet in wire of the beginning of the rdata.
|
||||
@type current: int
|
||||
@param olen: The length of the wire-format option data
|
||||
@type olen: int
|
||||
@rtype: dns.ends.Option instance"""
|
||||
raise NotImplementedError
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
"""Compare an ENDS option with another option of the same type.
|
||||
Return < 0 if self < other, 0 if self == other, and > 0 if self > other.
|
||||
"""
|
||||
raise NotImplementedError
|
||||
|
||||
def __eq__(self, other):
|
||||
if not isinstance(other, Option):
|
||||
return False
|
||||
if self.otype != other.otype:
|
||||
return False
|
||||
return self._cmp(other) == 0
|
||||
|
||||
def __ne__(self, other):
|
||||
if not isinstance(other, Option):
|
||||
return False
|
||||
if self.otype != other.otype:
|
||||
return False
|
||||
return self._cmp(other) != 0
|
||||
|
||||
def __lt__(self, other):
|
||||
if not isinstance(other, Option) or \
|
||||
self.otype != other.otype:
|
||||
return NotImplemented
|
||||
return self._cmp(other) < 0
|
||||
|
||||
def __le__(self, other):
|
||||
if not isinstance(other, Option) or \
|
||||
self.otype != other.otype:
|
||||
return NotImplemented
|
||||
return self._cmp(other) <= 0
|
||||
|
||||
def __ge__(self, other):
|
||||
if not isinstance(other, Option) or \
|
||||
self.otype != other.otype:
|
||||
return NotImplemented
|
||||
return self._cmp(other) >= 0
|
||||
|
||||
def __gt__(self, other):
|
||||
if not isinstance(other, Option) or \
|
||||
self.otype != other.otype:
|
||||
return NotImplemented
|
||||
return self._cmp(other) > 0
|
||||
|
||||
|
||||
class GenericOption(Option):
|
||||
"""Generate Rdata Class
|
||||
|
||||
This class is used for EDNS option types for which we have no better
|
||||
implementation.
|
||||
"""
|
||||
|
||||
def __init__(self, otype, data):
|
||||
super(GenericOption, self).__init__(otype)
|
||||
self.data = data
|
||||
|
||||
def to_wire(self, file):
|
||||
file.write(self.data)
|
||||
|
||||
def from_wire(cls, otype, wire, current, olen):
|
||||
return cls(otype, wire[current : current + olen])
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
return cmp(self.data, other.data)
|
||||
|
||||
_type_to_class = {
|
||||
}
|
||||
|
||||
def get_option_class(otype):
|
||||
cls = _type_to_class.get(otype)
|
||||
if cls is None:
|
||||
cls = GenericOption
|
||||
return cls
|
||||
|
||||
def option_from_wire(otype, wire, current, olen):
|
||||
"""Build an EDNS option object from wire format
|
||||
|
||||
@param otype: The option type
|
||||
@type otype: int
|
||||
@param wire: The wire-format message
|
||||
@type wire: string
|
||||
@param current: The offet in wire of the beginning of the rdata.
|
||||
@type current: int
|
||||
@param olen: The length of the wire-format option data
|
||||
@type olen: int
|
||||
@rtype: dns.ends.Option instance"""
|
||||
|
||||
cls = get_option_class(otype)
|
||||
return cls.from_wire(otype, wire, current, olen)
|
@ -1,123 +0,0 @@
|
||||
# Copyright (C) 2009 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import os
|
||||
import time
|
||||
try:
|
||||
import threading as _threading
|
||||
except ImportError:
|
||||
import dummy_threading as _threading
|
||||
|
||||
class EntropyPool(object):
|
||||
def __init__(self, seed=None):
|
||||
self.pool_index = 0
|
||||
self.digest = None
|
||||
self.next_byte = 0
|
||||
self.lock = _threading.Lock()
|
||||
try:
|
||||
import hashlib
|
||||
self.hash = hashlib.sha1()
|
||||
self.hash_len = 20
|
||||
except:
|
||||
try:
|
||||
import sha
|
||||
self.hash = sha.new()
|
||||
self.hash_len = 20
|
||||
except:
|
||||
import md5
|
||||
self.hash = md5.new()
|
||||
self.hash_len = 16
|
||||
self.pool = '\0' * self.hash_len
|
||||
if not seed is None:
|
||||
self.stir(seed)
|
||||
self.seeded = True
|
||||
else:
|
||||
self.seeded = False
|
||||
|
||||
def stir(self, entropy, already_locked=False):
|
||||
if not already_locked:
|
||||
self.lock.acquire()
|
||||
try:
|
||||
bytes = [ord(c) for c in self.pool]
|
||||
for c in entropy:
|
||||
if self.pool_index == self.hash_len:
|
||||
self.pool_index = 0
|
||||
b = ord(c) & 0xff
|
||||
bytes[self.pool_index] ^= b
|
||||
self.pool_index += 1
|
||||
self.pool = ''.join([chr(c) for c in bytes])
|
||||
finally:
|
||||
if not already_locked:
|
||||
self.lock.release()
|
||||
|
||||
def _maybe_seed(self):
|
||||
if not self.seeded:
|
||||
try:
|
||||
seed = os.urandom(16)
|
||||
except:
|
||||
try:
|
||||
r = file('/dev/urandom', 'r', 0)
|
||||
try:
|
||||
seed = r.read(16)
|
||||
finally:
|
||||
r.close()
|
||||
except:
|
||||
seed = str(time.time())
|
||||
self.seeded = True
|
||||
self.stir(seed, True)
|
||||
|
||||
def random_8(self):
|
||||
self.lock.acquire()
|
||||
self._maybe_seed()
|
||||
try:
|
||||
if self.digest is None or self.next_byte == self.hash_len:
|
||||
self.hash.update(self.pool)
|
||||
self.digest = self.hash.digest()
|
||||
self.stir(self.digest, True)
|
||||
self.next_byte = 0
|
||||
value = ord(self.digest[self.next_byte])
|
||||
self.next_byte += 1
|
||||
finally:
|
||||
self.lock.release()
|
||||
return value
|
||||
|
||||
def random_16(self):
|
||||
return self.random_8() * 256 + self.random_8()
|
||||
|
||||
def random_32(self):
|
||||
return self.random_16() * 65536 + self.random_16()
|
||||
|
||||
def random_between(self, first, last):
|
||||
size = last - first + 1
|
||||
if size > 4294967296L:
|
||||
raise ValueError('too big')
|
||||
if size > 65536:
|
||||
rand = self.random_32
|
||||
max = 4294967295L
|
||||
elif size > 256:
|
||||
rand = self.random_16
|
||||
max = 65535
|
||||
else:
|
||||
rand = self.random_8
|
||||
max = 255
|
||||
return (first + size * rand() // (max + 1))
|
||||
|
||||
pool = EntropyPool()
|
||||
|
||||
def random_16():
|
||||
return pool.random_16()
|
||||
|
||||
def between(first, last):
|
||||
return pool.random_between(first, last)
|
@ -1,40 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""Common DNS Exceptions."""
|
||||
|
||||
class DNSException(Exception):
|
||||
"""Abstract base class shared by all dnspython exceptions."""
|
||||
pass
|
||||
|
||||
class FormError(DNSException):
|
||||
"""DNS message is malformed."""
|
||||
pass
|
||||
|
||||
class SyntaxError(DNSException):
|
||||
"""Text input is malformed."""
|
||||
pass
|
||||
|
||||
class UnexpectedEnd(SyntaxError):
|
||||
"""Raised if text input ends unexpectedly."""
|
||||
pass
|
||||
|
||||
class TooBig(DNSException):
|
||||
"""The message is too big."""
|
||||
pass
|
||||
|
||||
class Timeout(DNSException):
|
||||
"""The operation timed out."""
|
||||
pass
|
@ -1,106 +0,0 @@
|
||||
# Copyright (C) 2001-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""DNS Message Flags."""
|
||||
|
||||
# Standard DNS flags
|
||||
|
||||
QR = 0x8000
|
||||
AA = 0x0400
|
||||
TC = 0x0200
|
||||
RD = 0x0100
|
||||
RA = 0x0080
|
||||
AD = 0x0020
|
||||
CD = 0x0010
|
||||
|
||||
# EDNS flags
|
||||
|
||||
DO = 0x8000
|
||||
|
||||
_by_text = {
|
||||
'QR' : QR,
|
||||
'AA' : AA,
|
||||
'TC' : TC,
|
||||
'RD' : RD,
|
||||
'RA' : RA,
|
||||
'AD' : AD,
|
||||
'CD' : CD
|
||||
}
|
||||
|
||||
_edns_by_text = {
|
||||
'DO' : DO
|
||||
}
|
||||
|
||||
|
||||
# We construct the inverse mappings programmatically to ensure that we
|
||||
# cannot make any mistakes (e.g. omissions, cut-and-paste errors) that
|
||||
# would cause the mappings not to be true inverses.
|
||||
|
||||
_by_value = dict([(y, x) for x, y in _by_text.iteritems()])
|
||||
|
||||
_edns_by_value = dict([(y, x) for x, y in _edns_by_text.iteritems()])
|
||||
|
||||
def _order_flags(table):
|
||||
order = list(table.iteritems())
|
||||
order.sort()
|
||||
order.reverse()
|
||||
return order
|
||||
|
||||
_flags_order = _order_flags(_by_value)
|
||||
|
||||
_edns_flags_order = _order_flags(_edns_by_value)
|
||||
|
||||
def _from_text(text, table):
|
||||
flags = 0
|
||||
tokens = text.split()
|
||||
for t in tokens:
|
||||
flags = flags | table[t.upper()]
|
||||
return flags
|
||||
|
||||
def _to_text(flags, table, order):
|
||||
text_flags = []
|
||||
for k, v in order:
|
||||
if flags & k != 0:
|
||||
text_flags.append(v)
|
||||
return ' '.join(text_flags)
|
||||
|
||||
def from_text(text):
|
||||
"""Convert a space-separated list of flag text values into a flags
|
||||
value.
|
||||
@rtype: int"""
|
||||
|
||||
return _from_text(text, _by_text)
|
||||
|
||||
def to_text(flags):
|
||||
"""Convert a flags value into a space-separated list of flag text
|
||||
values.
|
||||
@rtype: string"""
|
||||
|
||||
return _to_text(flags, _by_value, _flags_order)
|
||||
|
||||
|
||||
def edns_from_text(text):
|
||||
"""Convert a space-separated list of EDNS flag text values into a EDNS
|
||||
flags value.
|
||||
@rtype: int"""
|
||||
|
||||
return _from_text(text, _edns_by_text)
|
||||
|
||||
def edns_to_text(flags):
|
||||
"""Convert an EDNS flags value into a space-separated list of EDNS flag
|
||||
text values.
|
||||
@rtype: string"""
|
||||
|
||||
return _to_text(flags, _edns_by_value, _edns_flags_order)
|
@ -1,108 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""Generic Internet address helper functions."""
|
||||
|
||||
import socket
|
||||
|
||||
import dns.ipv4
|
||||
import dns.ipv6
|
||||
|
||||
|
||||
# We assume that AF_INET is always defined.
|
||||
|
||||
AF_INET = socket.AF_INET
|
||||
|
||||
# AF_INET6 might not be defined in the socket module, but we need it.
|
||||
# We'll try to use the socket module's value, and if it doesn't work,
|
||||
# we'll use our own value.
|
||||
|
||||
try:
|
||||
AF_INET6 = socket.AF_INET6
|
||||
except AttributeError:
|
||||
AF_INET6 = 9999
|
||||
|
||||
def inet_pton(family, text):
|
||||
"""Convert the textual form of a network address into its binary form.
|
||||
|
||||
@param family: the address family
|
||||
@type family: int
|
||||
@param text: the textual address
|
||||
@type text: string
|
||||
@raises NotImplementedError: the address family specified is not
|
||||
implemented.
|
||||
@rtype: string
|
||||
"""
|
||||
|
||||
if family == AF_INET:
|
||||
return dns.ipv4.inet_aton(text)
|
||||
elif family == AF_INET6:
|
||||
return dns.ipv6.inet_aton(text)
|
||||
else:
|
||||
raise NotImplementedError
|
||||
|
||||
def inet_ntop(family, address):
|
||||
"""Convert the binary form of a network address into its textual form.
|
||||
|
||||
@param family: the address family
|
||||
@type family: int
|
||||
@param address: the binary address
|
||||
@type address: string
|
||||
@raises NotImplementedError: the address family specified is not
|
||||
implemented.
|
||||
@rtype: string
|
||||
"""
|
||||
if family == AF_INET:
|
||||
return dns.ipv4.inet_ntoa(address)
|
||||
elif family == AF_INET6:
|
||||
return dns.ipv6.inet_ntoa(address)
|
||||
else:
|
||||
raise NotImplementedError
|
||||
|
||||
def af_for_address(text):
|
||||
"""Determine the address family of a textual-form network address.
|
||||
|
||||
@param text: the textual address
|
||||
@type text: string
|
||||
@raises ValueError: the address family cannot be determined from the input.
|
||||
@rtype: int
|
||||
"""
|
||||
try:
|
||||
junk = dns.ipv4.inet_aton(text)
|
||||
return AF_INET
|
||||
except:
|
||||
try:
|
||||
junk = dns.ipv6.inet_aton(text)
|
||||
return AF_INET6
|
||||
except:
|
||||
raise ValueError
|
||||
|
||||
def is_multicast(text):
|
||||
"""Is the textual-form network address a multicast address?
|
||||
|
||||
@param text: the textual address
|
||||
@raises ValueError: the address family cannot be determined from the input.
|
||||
@rtype: bool
|
||||
"""
|
||||
try:
|
||||
first = ord(dns.ipv4.inet_aton(text)[0])
|
||||
return (first >= 224 and first <= 239)
|
||||
except:
|
||||
try:
|
||||
first = ord(dns.ipv6.inet_aton(text)[0])
|
||||
return (first == 255)
|
||||
except:
|
||||
raise ValueError
|
||||
|
@ -1,36 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""IPv4 helper functions."""
|
||||
|
||||
import socket
|
||||
import sys
|
||||
|
||||
if sys.hexversion < 0x02030000 or sys.platform == 'win32':
|
||||
#
|
||||
# Some versions of Python 2.2 have an inet_aton which rejects
|
||||
# the valid IP address '255.255.255.255'. It appears this
|
||||
# problem is still present on the Win32 platform even in 2.3.
|
||||
# We'll work around the problem.
|
||||
#
|
||||
def inet_aton(text):
|
||||
if text == '255.255.255.255':
|
||||
return '\xff' * 4
|
||||
else:
|
||||
return socket.inet_aton(text)
|
||||
else:
|
||||
inet_aton = socket.inet_aton
|
||||
|
||||
inet_ntoa = socket.inet_ntoa
|
@ -1,163 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""IPv6 helper functions."""
|
||||
|
||||
import re
|
||||
|
||||
import dns.exception
|
||||
import dns.ipv4
|
||||
|
||||
_leading_zero = re.compile(r'0+([0-9a-f]+)')
|
||||
|
||||
def inet_ntoa(address):
|
||||
"""Convert a network format IPv6 address into text.
|
||||
|
||||
@param address: the binary address
|
||||
@type address: string
|
||||
@rtype: string
|
||||
@raises ValueError: the address isn't 16 bytes long
|
||||
"""
|
||||
|
||||
if len(address) != 16:
|
||||
raise ValueError("IPv6 addresses are 16 bytes long")
|
||||
hex = address.encode('hex_codec')
|
||||
chunks = []
|
||||
i = 0
|
||||
l = len(hex)
|
||||
while i < l:
|
||||
chunk = hex[i : i + 4]
|
||||
# strip leading zeros. we do this with an re instead of
|
||||
# with lstrip() because lstrip() didn't support chars until
|
||||
# python 2.2.2
|
||||
m = _leading_zero.match(chunk)
|
||||
if not m is None:
|
||||
chunk = m.group(1)
|
||||
chunks.append(chunk)
|
||||
i += 4
|
||||
#
|
||||
# Compress the longest subsequence of 0-value chunks to ::
|
||||
#
|
||||
best_start = 0
|
||||
best_len = 0
|
||||
start = -1
|
||||
last_was_zero = False
|
||||
for i in xrange(8):
|
||||
if chunks[i] != '0':
|
||||
if last_was_zero:
|
||||
end = i
|
||||
current_len = end - start
|
||||
if current_len > best_len:
|
||||
best_start = start
|
||||
best_len = current_len
|
||||
last_was_zero = False
|
||||
elif not last_was_zero:
|
||||
start = i
|
||||
last_was_zero = True
|
||||
if last_was_zero:
|
||||
end = 8
|
||||
current_len = end - start
|
||||
if current_len > best_len:
|
||||
best_start = start
|
||||
best_len = current_len
|
||||
if best_len > 0:
|
||||
if best_start == 0 and \
|
||||
(best_len == 6 or
|
||||
best_len == 5 and chunks[5] == 'ffff'):
|
||||
# We have an embedded IPv4 address
|
||||
if best_len == 6:
|
||||
prefix = '::'
|
||||
else:
|
||||
prefix = '::ffff:'
|
||||
hex = prefix + dns.ipv4.inet_ntoa(address[12:])
|
||||
else:
|
||||
hex = ':'.join(chunks[:best_start]) + '::' + \
|
||||
':'.join(chunks[best_start + best_len:])
|
||||
else:
|
||||
hex = ':'.join(chunks)
|
||||
return hex
|
||||
|
||||
_v4_ending = re.compile(r'(.*):(\d+)\.(\d+)\.(\d+)\.(\d+)$')
|
||||
_colon_colon_start = re.compile(r'::.*')
|
||||
_colon_colon_end = re.compile(r'.*::$')
|
||||
|
||||
def inet_aton(text):
|
||||
"""Convert a text format IPv6 address into network format.
|
||||
|
||||
@param text: the textual address
|
||||
@type text: string
|
||||
@rtype: string
|
||||
@raises dns.exception.SyntaxError: the text was not properly formatted
|
||||
"""
|
||||
|
||||
#
|
||||
# Our aim here is not something fast; we just want something that works.
|
||||
#
|
||||
|
||||
if text == '::':
|
||||
text = '0::'
|
||||
#
|
||||
# Get rid of the icky dot-quad syntax if we have it.
|
||||
#
|
||||
m = _v4_ending.match(text)
|
||||
if not m is None:
|
||||
text = "%s:%04x:%04x" % (m.group(1),
|
||||
int(m.group(2)) * 256 + int(m.group(3)),
|
||||
int(m.group(4)) * 256 + int(m.group(5)))
|
||||
#
|
||||
# Try to turn '::<whatever>' into ':<whatever>'; if no match try to
|
||||
# turn '<whatever>::' into '<whatever>:'
|
||||
#
|
||||
m = _colon_colon_start.match(text)
|
||||
if not m is None:
|
||||
text = text[1:]
|
||||
else:
|
||||
m = _colon_colon_end.match(text)
|
||||
if not m is None:
|
||||
text = text[:-1]
|
||||
#
|
||||
# Now canonicalize into 8 chunks of 4 hex digits each
|
||||
#
|
||||
chunks = text.split(':')
|
||||
l = len(chunks)
|
||||
if l > 8:
|
||||
raise dns.exception.SyntaxError
|
||||
seen_empty = False
|
||||
canonical = []
|
||||
for c in chunks:
|
||||
if c == '':
|
||||
if seen_empty:
|
||||
raise dns.exception.SyntaxError
|
||||
seen_empty = True
|
||||
for i in xrange(0, 8 - l + 1):
|
||||
canonical.append('0000')
|
||||
else:
|
||||
lc = len(c)
|
||||
if lc > 4:
|
||||
raise dns.exception.SyntaxError
|
||||
if lc != 4:
|
||||
c = ('0' * (4 - lc)) + c
|
||||
canonical.append(c)
|
||||
if l < 8 and not seen_empty:
|
||||
raise dns.exception.SyntaxError
|
||||
text = ''.join(canonical)
|
||||
|
||||
#
|
||||
# Finally we can go to binary.
|
||||
#
|
||||
try:
|
||||
return text.decode('hex_codec')
|
||||
except TypeError:
|
||||
raise dns.exception.SyntaxError
|
File diff suppressed because it is too large
Load Diff
@ -1,700 +0,0 @@
|
||||
# Copyright (C) 2001-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""DNS Names.
|
||||
|
||||
@var root: The DNS root name.
|
||||
@type root: dns.name.Name object
|
||||
@var empty: The empty DNS name.
|
||||
@type empty: dns.name.Name object
|
||||
"""
|
||||
|
||||
import cStringIO
|
||||
import struct
|
||||
import sys
|
||||
|
||||
if sys.hexversion >= 0x02030000:
|
||||
import encodings.idna
|
||||
|
||||
import dns.exception
|
||||
|
||||
NAMERELN_NONE = 0
|
||||
NAMERELN_SUPERDOMAIN = 1
|
||||
NAMERELN_SUBDOMAIN = 2
|
||||
NAMERELN_EQUAL = 3
|
||||
NAMERELN_COMMONANCESTOR = 4
|
||||
|
||||
class EmptyLabel(dns.exception.SyntaxError):
|
||||
"""Raised if a label is empty."""
|
||||
pass
|
||||
|
||||
class BadEscape(dns.exception.SyntaxError):
|
||||
"""Raised if an escaped code in a text format name is invalid."""
|
||||
pass
|
||||
|
||||
class BadPointer(dns.exception.FormError):
|
||||
"""Raised if a compression pointer points forward instead of backward."""
|
||||
pass
|
||||
|
||||
class BadLabelType(dns.exception.FormError):
|
||||
"""Raised if the label type of a wire format name is unknown."""
|
||||
pass
|
||||
|
||||
class NeedAbsoluteNameOrOrigin(dns.exception.DNSException):
|
||||
"""Raised if an attempt is made to convert a non-absolute name to
|
||||
wire when there is also a non-absolute (or missing) origin."""
|
||||
pass
|
||||
|
||||
class NameTooLong(dns.exception.FormError):
|
||||
"""Raised if a name is > 255 octets long."""
|
||||
pass
|
||||
|
||||
class LabelTooLong(dns.exception.SyntaxError):
|
||||
"""Raised if a label is > 63 octets long."""
|
||||
pass
|
||||
|
||||
class AbsoluteConcatenation(dns.exception.DNSException):
|
||||
"""Raised if an attempt is made to append anything other than the
|
||||
empty name to an absolute name."""
|
||||
pass
|
||||
|
||||
class NoParent(dns.exception.DNSException):
|
||||
"""Raised if an attempt is made to get the parent of the root name
|
||||
or the empty name."""
|
||||
pass
|
||||
|
||||
_escaped = {
|
||||
'"' : True,
|
||||
'(' : True,
|
||||
')' : True,
|
||||
'.' : True,
|
||||
';' : True,
|
||||
'\\' : True,
|
||||
'@' : True,
|
||||
'$' : True
|
||||
}
|
||||
|
||||
def _escapify(label):
|
||||
"""Escape the characters in label which need it.
|
||||
@returns: the escaped string
|
||||
@rtype: string"""
|
||||
text = ''
|
||||
for c in label:
|
||||
if c in _escaped:
|
||||
text += '\\' + c
|
||||
elif ord(c) > 0x20 and ord(c) < 0x7F:
|
||||
text += c
|
||||
else:
|
||||
text += '\\%03d' % ord(c)
|
||||
return text
|
||||
|
||||
def _validate_labels(labels):
|
||||
"""Check for empty labels in the middle of a label sequence,
|
||||
labels that are too long, and for too many labels.
|
||||
@raises NameTooLong: the name as a whole is too long
|
||||
@raises LabelTooLong: an individual label is too long
|
||||
@raises EmptyLabel: a label is empty (i.e. the root label) and appears
|
||||
in a position other than the end of the label sequence"""
|
||||
|
||||
l = len(labels)
|
||||
total = 0
|
||||
i = -1
|
||||
j = 0
|
||||
for label in labels:
|
||||
ll = len(label)
|
||||
total += ll + 1
|
||||
if ll > 63:
|
||||
raise LabelTooLong
|
||||
if i < 0 and label == '':
|
||||
i = j
|
||||
j += 1
|
||||
if total > 255:
|
||||
raise NameTooLong
|
||||
if i >= 0 and i != l - 1:
|
||||
raise EmptyLabel
|
||||
|
||||
class Name(object):
|
||||
"""A DNS name.
|
||||
|
||||
The dns.name.Name class represents a DNS name as a tuple of labels.
|
||||
Instances of the class are immutable.
|
||||
|
||||
@ivar labels: The tuple of labels in the name. Each label is a string of
|
||||
up to 63 octets."""
|
||||
|
||||
__slots__ = ['labels']
|
||||
|
||||
def __init__(self, labels):
|
||||
"""Initialize a domain name from a list of labels.
|
||||
@param labels: the labels
|
||||
@type labels: any iterable whose values are strings
|
||||
"""
|
||||
|
||||
super(Name, self).__setattr__('labels', tuple(labels))
|
||||
_validate_labels(self.labels)
|
||||
|
||||
def __setattr__(self, name, value):
|
||||
raise TypeError("object doesn't support attribute assignment")
|
||||
|
||||
def is_absolute(self):
|
||||
"""Is the most significant label of this name the root label?
|
||||
@rtype: bool
|
||||
"""
|
||||
|
||||
return len(self.labels) > 0 and self.labels[-1] == ''
|
||||
|
||||
def is_wild(self):
|
||||
"""Is this name wild? (I.e. Is the least significant label '*'?)
|
||||
@rtype: bool
|
||||
"""
|
||||
|
||||
return len(self.labels) > 0 and self.labels[0] == '*'
|
||||
|
||||
def __hash__(self):
|
||||
"""Return a case-insensitive hash of the name.
|
||||
@rtype: int
|
||||
"""
|
||||
|
||||
h = 0L
|
||||
for label in self.labels:
|
||||
for c in label:
|
||||
h += ( h << 3 ) + ord(c.lower())
|
||||
return int(h % sys.maxint)
|
||||
|
||||
def fullcompare(self, other):
|
||||
"""Compare two names, returning a 3-tuple (relation, order, nlabels).
|
||||
|
||||
I{relation} describes the relation ship beween the names,
|
||||
and is one of: dns.name.NAMERELN_NONE,
|
||||
dns.name.NAMERELN_SUPERDOMAIN, dns.name.NAMERELN_SUBDOMAIN,
|
||||
dns.name.NAMERELN_EQUAL, or dns.name.NAMERELN_COMMONANCESTOR
|
||||
|
||||
I{order} is < 0 if self < other, > 0 if self > other, and ==
|
||||
0 if self == other. A relative name is always less than an
|
||||
absolute name. If both names have the same relativity, then
|
||||
the DNSSEC order relation is used to order them.
|
||||
|
||||
I{nlabels} is the number of significant labels that the two names
|
||||
have in common.
|
||||
"""
|
||||
|
||||
sabs = self.is_absolute()
|
||||
oabs = other.is_absolute()
|
||||
if sabs != oabs:
|
||||
if sabs:
|
||||
return (NAMERELN_NONE, 1, 0)
|
||||
else:
|
||||
return (NAMERELN_NONE, -1, 0)
|
||||
l1 = len(self.labels)
|
||||
l2 = len(other.labels)
|
||||
ldiff = l1 - l2
|
||||
if ldiff < 0:
|
||||
l = l1
|
||||
else:
|
||||
l = l2
|
||||
|
||||
order = 0
|
||||
nlabels = 0
|
||||
namereln = NAMERELN_NONE
|
||||
while l > 0:
|
||||
l -= 1
|
||||
l1 -= 1
|
||||
l2 -= 1
|
||||
label1 = self.labels[l1].lower()
|
||||
label2 = other.labels[l2].lower()
|
||||
if label1 < label2:
|
||||
order = -1
|
||||
if nlabels > 0:
|
||||
namereln = NAMERELN_COMMONANCESTOR
|
||||
return (namereln, order, nlabels)
|
||||
elif label1 > label2:
|
||||
order = 1
|
||||
if nlabels > 0:
|
||||
namereln = NAMERELN_COMMONANCESTOR
|
||||
return (namereln, order, nlabels)
|
||||
nlabels += 1
|
||||
order = ldiff
|
||||
if ldiff < 0:
|
||||
namereln = NAMERELN_SUPERDOMAIN
|
||||
elif ldiff > 0:
|
||||
namereln = NAMERELN_SUBDOMAIN
|
||||
else:
|
||||
namereln = NAMERELN_EQUAL
|
||||
return (namereln, order, nlabels)
|
||||
|
||||
def is_subdomain(self, other):
|
||||
"""Is self a subdomain of other?
|
||||
|
||||
The notion of subdomain includes equality.
|
||||
@rtype: bool
|
||||
"""
|
||||
|
||||
(nr, o, nl) = self.fullcompare(other)
|
||||
if nr == NAMERELN_SUBDOMAIN or nr == NAMERELN_EQUAL:
|
||||
return True
|
||||
return False
|
||||
|
||||
def is_superdomain(self, other):
|
||||
"""Is self a superdomain of other?
|
||||
|
||||
The notion of subdomain includes equality.
|
||||
@rtype: bool
|
||||
"""
|
||||
|
||||
(nr, o, nl) = self.fullcompare(other)
|
||||
if nr == NAMERELN_SUPERDOMAIN or nr == NAMERELN_EQUAL:
|
||||
return True
|
||||
return False
|
||||
|
||||
def canonicalize(self):
|
||||
"""Return a name which is equal to the current name, but is in
|
||||
DNSSEC canonical form.
|
||||
@rtype: dns.name.Name object
|
||||
"""
|
||||
|
||||
return Name([x.lower() for x in self.labels])
|
||||
|
||||
def __eq__(self, other):
|
||||
if isinstance(other, Name):
|
||||
return self.fullcompare(other)[1] == 0
|
||||
else:
|
||||
return False
|
||||
|
||||
def __ne__(self, other):
|
||||
if isinstance(other, Name):
|
||||
return self.fullcompare(other)[1] != 0
|
||||
else:
|
||||
return True
|
||||
|
||||
def __lt__(self, other):
|
||||
if isinstance(other, Name):
|
||||
return self.fullcompare(other)[1] < 0
|
||||
else:
|
||||
return NotImplemented
|
||||
|
||||
def __le__(self, other):
|
||||
if isinstance(other, Name):
|
||||
return self.fullcompare(other)[1] <= 0
|
||||
else:
|
||||
return NotImplemented
|
||||
|
||||
def __ge__(self, other):
|
||||
if isinstance(other, Name):
|
||||
return self.fullcompare(other)[1] >= 0
|
||||
else:
|
||||
return NotImplemented
|
||||
|
||||
def __gt__(self, other):
|
||||
if isinstance(other, Name):
|
||||
return self.fullcompare(other)[1] > 0
|
||||
else:
|
||||
return NotImplemented
|
||||
|
||||
def __repr__(self):
|
||||
return '<DNS name ' + self.__str__() + '>'
|
||||
|
||||
def __str__(self):
|
||||
return self.to_text(False)
|
||||
|
||||
def to_text(self, omit_final_dot = False):
|
||||
"""Convert name to text format.
|
||||
@param omit_final_dot: If True, don't emit the final dot (denoting the
|
||||
root label) for absolute names. The default is False.
|
||||
@rtype: string
|
||||
"""
|
||||
|
||||
if len(self.labels) == 0:
|
||||
return '@'
|
||||
if len(self.labels) == 1 and self.labels[0] == '':
|
||||
return '.'
|
||||
if omit_final_dot and self.is_absolute():
|
||||
l = self.labels[:-1]
|
||||
else:
|
||||
l = self.labels
|
||||
s = '.'.join(map(_escapify, l))
|
||||
return s
|
||||
|
||||
def to_unicode(self, omit_final_dot = False):
|
||||
"""Convert name to Unicode text format.
|
||||
|
||||
IDN ACE lables are converted to Unicode.
|
||||
|
||||
@param omit_final_dot: If True, don't emit the final dot (denoting the
|
||||
root label) for absolute names. The default is False.
|
||||
@rtype: string
|
||||
"""
|
||||
|
||||
if len(self.labels) == 0:
|
||||
return u'@'
|
||||
if len(self.labels) == 1 and self.labels[0] == '':
|
||||
return u'.'
|
||||
if omit_final_dot and self.is_absolute():
|
||||
l = self.labels[:-1]
|
||||
else:
|
||||
l = self.labels
|
||||
s = u'.'.join([encodings.idna.ToUnicode(_escapify(x)) for x in l])
|
||||
return s
|
||||
|
||||
def to_digestable(self, origin=None):
|
||||
"""Convert name to a format suitable for digesting in hashes.
|
||||
|
||||
The name is canonicalized and converted to uncompressed wire format.
|
||||
|
||||
@param origin: If the name is relative and origin is not None, then
|
||||
origin will be appended to it.
|
||||
@type origin: dns.name.Name object
|
||||
@raises NeedAbsoluteNameOrOrigin: All names in wire format are
|
||||
absolute. If self is a relative name, then an origin must be supplied;
|
||||
if it is missing, then this exception is raised
|
||||
@rtype: string
|
||||
"""
|
||||
|
||||
if not self.is_absolute():
|
||||
if origin is None or not origin.is_absolute():
|
||||
raise NeedAbsoluteNameOrOrigin
|
||||
labels = list(self.labels)
|
||||
labels.extend(list(origin.labels))
|
||||
else:
|
||||
labels = self.labels
|
||||
dlabels = ["%s%s" % (chr(len(x)), x.lower()) for x in labels]
|
||||
return ''.join(dlabels)
|
||||
|
||||
def to_wire(self, file = None, compress = None, origin = None):
|
||||
"""Convert name to wire format, possibly compressing it.
|
||||
|
||||
@param file: the file where the name is emitted (typically
|
||||
a cStringIO file). If None, a string containing the wire name
|
||||
will be returned.
|
||||
@type file: file or None
|
||||
@param compress: The compression table. If None (the default) names
|
||||
will not be compressed.
|
||||
@type compress: dict
|
||||
@param origin: If the name is relative and origin is not None, then
|
||||
origin will be appended to it.
|
||||
@type origin: dns.name.Name object
|
||||
@raises NeedAbsoluteNameOrOrigin: All names in wire format are
|
||||
absolute. If self is a relative name, then an origin must be supplied;
|
||||
if it is missing, then this exception is raised
|
||||
"""
|
||||
|
||||
if file is None:
|
||||
file = cStringIO.StringIO()
|
||||
want_return = True
|
||||
else:
|
||||
want_return = False
|
||||
|
||||
if not self.is_absolute():
|
||||
if origin is None or not origin.is_absolute():
|
||||
raise NeedAbsoluteNameOrOrigin
|
||||
labels = list(self.labels)
|
||||
labels.extend(list(origin.labels))
|
||||
else:
|
||||
labels = self.labels
|
||||
i = 0
|
||||
for label in labels:
|
||||
n = Name(labels[i:])
|
||||
i += 1
|
||||
if not compress is None:
|
||||
pos = compress.get(n)
|
||||
else:
|
||||
pos = None
|
||||
if not pos is None:
|
||||
value = 0xc000 + pos
|
||||
s = struct.pack('!H', value)
|
||||
file.write(s)
|
||||
break
|
||||
else:
|
||||
if not compress is None and len(n) > 1:
|
||||
pos = file.tell()
|
||||
if pos < 0xc000:
|
||||
compress[n] = pos
|
||||
l = len(label)
|
||||
file.write(chr(l))
|
||||
if l > 0:
|
||||
file.write(label)
|
||||
if want_return:
|
||||
return file.getvalue()
|
||||
|
||||
def __len__(self):
|
||||
"""The length of the name (in labels).
|
||||
@rtype: int
|
||||
"""
|
||||
|
||||
return len(self.labels)
|
||||
|
||||
def __getitem__(self, index):
|
||||
return self.labels[index]
|
||||
|
||||
def __getslice__(self, start, stop):
|
||||
return self.labels[start:stop]
|
||||
|
||||
def __add__(self, other):
|
||||
return self.concatenate(other)
|
||||
|
||||
def __sub__(self, other):
|
||||
return self.relativize(other)
|
||||
|
||||
def split(self, depth):
|
||||
"""Split a name into a prefix and suffix at depth.
|
||||
|
||||
@param depth: the number of labels in the suffix
|
||||
@type depth: int
|
||||
@raises ValueError: the depth was not >= 0 and <= the length of the
|
||||
name.
|
||||
@returns: the tuple (prefix, suffix)
|
||||
@rtype: tuple
|
||||
"""
|
||||
|
||||
l = len(self.labels)
|
||||
if depth == 0:
|
||||
return (self, dns.name.empty)
|
||||
elif depth == l:
|
||||
return (dns.name.empty, self)
|
||||
elif depth < 0 or depth > l:
|
||||
raise ValueError('depth must be >= 0 and <= the length of the name')
|
||||
return (Name(self[: -depth]), Name(self[-depth :]))
|
||||
|
||||
def concatenate(self, other):
|
||||
"""Return a new name which is the concatenation of self and other.
|
||||
@rtype: dns.name.Name object
|
||||
@raises AbsoluteConcatenation: self is absolute and other is
|
||||
not the empty name
|
||||
"""
|
||||
|
||||
if self.is_absolute() and len(other) > 0:
|
||||
raise AbsoluteConcatenation
|
||||
labels = list(self.labels)
|
||||
labels.extend(list(other.labels))
|
||||
return Name(labels)
|
||||
|
||||
def relativize(self, origin):
|
||||
"""If self is a subdomain of origin, return a new name which is self
|
||||
relative to origin. Otherwise return self.
|
||||
@rtype: dns.name.Name object
|
||||
"""
|
||||
|
||||
if not origin is None and self.is_subdomain(origin):
|
||||
return Name(self[: -len(origin)])
|
||||
else:
|
||||
return self
|
||||
|
||||
def derelativize(self, origin):
|
||||
"""If self is a relative name, return a new name which is the
|
||||
concatenation of self and origin. Otherwise return self.
|
||||
@rtype: dns.name.Name object
|
||||
"""
|
||||
|
||||
if not self.is_absolute():
|
||||
return self.concatenate(origin)
|
||||
else:
|
||||
return self
|
||||
|
||||
def choose_relativity(self, origin=None, relativize=True):
|
||||
"""Return a name with the relativity desired by the caller. If
|
||||
origin is None, then self is returned. Otherwise, if
|
||||
relativize is true the name is relativized, and if relativize is
|
||||
false the name is derelativized.
|
||||
@rtype: dns.name.Name object
|
||||
"""
|
||||
|
||||
if origin:
|
||||
if relativize:
|
||||
return self.relativize(origin)
|
||||
else:
|
||||
return self.derelativize(origin)
|
||||
else:
|
||||
return self
|
||||
|
||||
def parent(self):
|
||||
"""Return the parent of the name.
|
||||
@rtype: dns.name.Name object
|
||||
@raises NoParent: the name is either the root name or the empty name,
|
||||
and thus has no parent.
|
||||
"""
|
||||
if self == root or self == empty:
|
||||
raise NoParent
|
||||
return Name(self.labels[1:])
|
||||
|
||||
root = Name([''])
|
||||
empty = Name([])
|
||||
|
||||
def from_unicode(text, origin = root):
|
||||
"""Convert unicode text into a Name object.
|
||||
|
||||
Lables are encoded in IDN ACE form.
|
||||
|
||||
@rtype: dns.name.Name object
|
||||
"""
|
||||
|
||||
if not isinstance(text, unicode):
|
||||
raise ValueError("input to from_unicode() must be a unicode string")
|
||||
if not (origin is None or isinstance(origin, Name)):
|
||||
raise ValueError("origin must be a Name or None")
|
||||
labels = []
|
||||
label = u''
|
||||
escaping = False
|
||||
edigits = 0
|
||||
total = 0
|
||||
if text == u'@':
|
||||
text = u''
|
||||
if text:
|
||||
if text == u'.':
|
||||
return Name(['']) # no Unicode "u" on this constant!
|
||||
for c in text:
|
||||
if escaping:
|
||||
if edigits == 0:
|
||||
if c.isdigit():
|
||||
total = int(c)
|
||||
edigits += 1
|
||||
else:
|
||||
label += c
|
||||
escaping = False
|
||||
else:
|
||||
if not c.isdigit():
|
||||
raise BadEscape
|
||||
total *= 10
|
||||
total += int(c)
|
||||
edigits += 1
|
||||
if edigits == 3:
|
||||
escaping = False
|
||||
label += chr(total)
|
||||
elif c == u'.' or c == u'\u3002' or \
|
||||
c == u'\uff0e' or c == u'\uff61':
|
||||
if len(label) == 0:
|
||||
raise EmptyLabel
|
||||
labels.append(encodings.idna.ToASCII(label))
|
||||
label = u''
|
||||
elif c == u'\\':
|
||||
escaping = True
|
||||
edigits = 0
|
||||
total = 0
|
||||
else:
|
||||
label += c
|
||||
if escaping:
|
||||
raise BadEscape
|
||||
if len(label) > 0:
|
||||
labels.append(encodings.idna.ToASCII(label))
|
||||
else:
|
||||
labels.append('')
|
||||
if (len(labels) == 0 or labels[-1] != '') and not origin is None:
|
||||
labels.extend(list(origin.labels))
|
||||
return Name(labels)
|
||||
|
||||
def from_text(text, origin = root):
|
||||
"""Convert text into a Name object.
|
||||
@rtype: dns.name.Name object
|
||||
"""
|
||||
|
||||
if not isinstance(text, str):
|
||||
if isinstance(text, unicode) and sys.hexversion >= 0x02030000:
|
||||
return from_unicode(text, origin)
|
||||
else:
|
||||
raise ValueError("input to from_text() must be a string")
|
||||
if not (origin is None or isinstance(origin, Name)):
|
||||
raise ValueError("origin must be a Name or None")
|
||||
labels = []
|
||||
label = ''
|
||||
escaping = False
|
||||
edigits = 0
|
||||
total = 0
|
||||
if text == '@':
|
||||
text = ''
|
||||
if text:
|
||||
if text == '.':
|
||||
return Name([''])
|
||||
for c in text:
|
||||
if escaping:
|
||||
if edigits == 0:
|
||||
if c.isdigit():
|
||||
total = int(c)
|
||||
edigits += 1
|
||||
else:
|
||||
label += c
|
||||
escaping = False
|
||||
else:
|
||||
if not c.isdigit():
|
||||
raise BadEscape
|
||||
total *= 10
|
||||
total += int(c)
|
||||
edigits += 1
|
||||
if edigits == 3:
|
||||
escaping = False
|
||||
label += chr(total)
|
||||
elif c == '.':
|
||||
if len(label) == 0:
|
||||
raise EmptyLabel
|
||||
labels.append(label)
|
||||
label = ''
|
||||
elif c == '\\':
|
||||
escaping = True
|
||||
edigits = 0
|
||||
total = 0
|
||||
else:
|
||||
label += c
|
||||
if escaping:
|
||||
raise BadEscape
|
||||
if len(label) > 0:
|
||||
labels.append(label)
|
||||
else:
|
||||
labels.append('')
|
||||
if (len(labels) == 0 or labels[-1] != '') and not origin is None:
|
||||
labels.extend(list(origin.labels))
|
||||
return Name(labels)
|
||||
|
||||
def from_wire(message, current):
|
||||
"""Convert possibly compressed wire format into a Name.
|
||||
@param message: the entire DNS message
|
||||
@type message: string
|
||||
@param current: the offset of the beginning of the name from the start
|
||||
of the message
|
||||
@type current: int
|
||||
@raises dns.name.BadPointer: a compression pointer did not point backwards
|
||||
in the message
|
||||
@raises dns.name.BadLabelType: an invalid label type was encountered.
|
||||
@returns: a tuple consisting of the name that was read and the number
|
||||
of bytes of the wire format message which were consumed reading it
|
||||
@rtype: (dns.name.Name object, int) tuple
|
||||
"""
|
||||
|
||||
if not isinstance(message, str):
|
||||
raise ValueError("input to from_wire() must be a byte string")
|
||||
labels = []
|
||||
biggest_pointer = current
|
||||
hops = 0
|
||||
count = ord(message[current])
|
||||
current += 1
|
||||
cused = 1
|
||||
while count != 0:
|
||||
if count < 64:
|
||||
labels.append(message[current : current + count])
|
||||
current += count
|
||||
if hops == 0:
|
||||
cused += count
|
||||
elif count >= 192:
|
||||
current = (count & 0x3f) * 256 + ord(message[current])
|
||||
if hops == 0:
|
||||
cused += 1
|
||||
if current >= biggest_pointer:
|
||||
raise BadPointer
|
||||
biggest_pointer = current
|
||||
hops += 1
|
||||
else:
|
||||
raise BadLabelType
|
||||
count = ord(message[current])
|
||||
current += 1
|
||||
if hops == 0:
|
||||
cused += 1
|
||||
labels.append('')
|
||||
return (Name(labels), cused)
|
@ -1,59 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""DNS name dictionary"""
|
||||
|
||||
import dns.name
|
||||
|
||||
class NameDict(dict):
|
||||
|
||||
"""A dictionary whose keys are dns.name.Name objects.
|
||||
@ivar max_depth: the maximum depth of the keys that have ever been
|
||||
added to the dictionary.
|
||||
@type max_depth: int
|
||||
"""
|
||||
|
||||
def __init__(self, *args, **kwargs):
|
||||
super(NameDict, self).__init__(*args, **kwargs)
|
||||
self.max_depth = 0
|
||||
|
||||
def __setitem__(self, key, value):
|
||||
if not isinstance(key, dns.name.Name):
|
||||
raise ValueError('NameDict key must be a name')
|
||||
depth = len(key)
|
||||
if depth > self.max_depth:
|
||||
self.max_depth = depth
|
||||
super(NameDict, self).__setitem__(key, value)
|
||||
|
||||
def get_deepest_match(self, name):
|
||||
"""Find the deepest match to I{name} in the dictionary.
|
||||
|
||||
The deepest match is the longest name in the dictionary which is
|
||||
a superdomain of I{name}.
|
||||
|
||||
@param name: the name
|
||||
@type name: dns.name.Name object
|
||||
@rtype: (key, value) tuple
|
||||
"""
|
||||
|
||||
depth = len(name)
|
||||
if depth > self.max_depth:
|
||||
depth = self.max_depth
|
||||
for i in xrange(-depth, 0):
|
||||
n = dns.name.Name(name[i:])
|
||||
if self.has_key(n):
|
||||
return (n, self[n])
|
||||
v = self[dns.name.empty]
|
||||
return (dns.name.empty, v)
|
@ -1,172 +0,0 @@
|
||||
# Copyright (C) 2001-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""DNS nodes. A node is a set of rdatasets."""
|
||||
|
||||
import StringIO
|
||||
|
||||
import dns.rdataset
|
||||
import dns.rdatatype
|
||||
import dns.renderer
|
||||
|
||||
class Node(object):
|
||||
"""A DNS node.
|
||||
|
||||
A node is a set of rdatasets
|
||||
|
||||
@ivar rdatasets: the node's rdatasets
|
||||
@type rdatasets: list of dns.rdataset.Rdataset objects"""
|
||||
|
||||
__slots__ = ['rdatasets']
|
||||
|
||||
def __init__(self):
|
||||
"""Initialize a DNS node.
|
||||
"""
|
||||
|
||||
self.rdatasets = [];
|
||||
|
||||
def to_text(self, name, **kw):
|
||||
"""Convert a node to text format.
|
||||
|
||||
Each rdataset at the node is printed. Any keyword arguments
|
||||
to this method are passed on to the rdataset's to_text() method.
|
||||
@param name: the owner name of the rdatasets
|
||||
@type name: dns.name.Name object
|
||||
@rtype: string
|
||||
"""
|
||||
|
||||
s = StringIO.StringIO()
|
||||
for rds in self.rdatasets:
|
||||
print >> s, rds.to_text(name, **kw)
|
||||
return s.getvalue()[:-1]
|
||||
|
||||
def __repr__(self):
|
||||
return '<DNS node ' + str(id(self)) + '>'
|
||||
|
||||
def __eq__(self, other):
|
||||
"""Two nodes are equal if they have the same rdatasets.
|
||||
|
||||
@rtype: bool
|
||||
"""
|
||||
#
|
||||
# This is inefficient. Good thing we don't need to do it much.
|
||||
#
|
||||
for rd in self.rdatasets:
|
||||
if rd not in other.rdatasets:
|
||||
return False
|
||||
for rd in other.rdatasets:
|
||||
if rd not in self.rdatasets:
|
||||
return False
|
||||
return True
|
||||
|
||||
def __ne__(self, other):
|
||||
return not self.__eq__(other)
|
||||
|
||||
def __len__(self):
|
||||
return len(self.rdatasets)
|
||||
|
||||
def __iter__(self):
|
||||
return iter(self.rdatasets)
|
||||
|
||||
def find_rdataset(self, rdclass, rdtype, covers=dns.rdatatype.NONE,
|
||||
create=False):
|
||||
"""Find an rdataset matching the specified properties in the
|
||||
current node.
|
||||
|
||||
@param rdclass: The class of the rdataset
|
||||
@type rdclass: int
|
||||
@param rdtype: The type of the rdataset
|
||||
@type rdtype: int
|
||||
@param covers: The covered type. Usually this value is
|
||||
dns.rdatatype.NONE, but if the rdtype is dns.rdatatype.SIG or
|
||||
dns.rdatatype.RRSIG, then the covers value will be the rdata
|
||||
type the SIG/RRSIG covers. The library treats the SIG and RRSIG
|
||||
types as if they were a family of
|
||||
types, e.g. RRSIG(A), RRSIG(NS), RRSIG(SOA). This makes RRSIGs much
|
||||
easier to work with than if RRSIGs covering different rdata
|
||||
types were aggregated into a single RRSIG rdataset.
|
||||
@type covers: int
|
||||
@param create: If True, create the rdataset if it is not found.
|
||||
@type create: bool
|
||||
@raises KeyError: An rdataset of the desired type and class does
|
||||
not exist and I{create} is not True.
|
||||
@rtype: dns.rdataset.Rdataset object
|
||||
"""
|
||||
|
||||
for rds in self.rdatasets:
|
||||
if rds.match(rdclass, rdtype, covers):
|
||||
return rds
|
||||
if not create:
|
||||
raise KeyError
|
||||
rds = dns.rdataset.Rdataset(rdclass, rdtype)
|
||||
self.rdatasets.append(rds)
|
||||
return rds
|
||||
|
||||
def get_rdataset(self, rdclass, rdtype, covers=dns.rdatatype.NONE,
|
||||
create=False):
|
||||
"""Get an rdataset matching the specified properties in the
|
||||
current node.
|
||||
|
||||
None is returned if an rdataset of the specified type and
|
||||
class does not exist and I{create} is not True.
|
||||
|
||||
@param rdclass: The class of the rdataset
|
||||
@type rdclass: int
|
||||
@param rdtype: The type of the rdataset
|
||||
@type rdtype: int
|
||||
@param covers: The covered type.
|
||||
@type covers: int
|
||||
@param create: If True, create the rdataset if it is not found.
|
||||
@type create: bool
|
||||
@rtype: dns.rdataset.Rdataset object or None
|
||||
"""
|
||||
|
||||
try:
|
||||
rds = self.find_rdataset(rdclass, rdtype, covers, create)
|
||||
except KeyError:
|
||||
rds = None
|
||||
return rds
|
||||
|
||||
def delete_rdataset(self, rdclass, rdtype, covers=dns.rdatatype.NONE):
|
||||
"""Delete the rdataset matching the specified properties in the
|
||||
current node.
|
||||
|
||||
If a matching rdataset does not exist, it is not an error.
|
||||
|
||||
@param rdclass: The class of the rdataset
|
||||
@type rdclass: int
|
||||
@param rdtype: The type of the rdataset
|
||||
@type rdtype: int
|
||||
@param covers: The covered type.
|
||||
@type covers: int
|
||||
"""
|
||||
|
||||
rds = self.get_rdataset(rdclass, rdtype, covers)
|
||||
if not rds is None:
|
||||
self.rdatasets.remove(rds)
|
||||
|
||||
def replace_rdataset(self, replacement):
|
||||
"""Replace an rdataset.
|
||||
|
||||
It is not an error if there is no rdataset matching I{replacement}.
|
||||
|
||||
Ownership of the I{replacement} object is transferred to the node;
|
||||
in other words, this method does not store a copy of I{replacement}
|
||||
at the node, it stores I{replacement} itself.
|
||||
"""
|
||||
|
||||
self.delete_rdataset(replacement.rdclass, replacement.rdtype,
|
||||
replacement.covers)
|
||||
self.rdatasets.append(replacement)
|
@ -1,104 +0,0 @@
|
||||
# Copyright (C) 2001-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""DNS Opcodes."""
|
||||
|
||||
import dns.exception
|
||||
|
||||
QUERY = 0
|
||||
IQUERY = 1
|
||||
STATUS = 2
|
||||
NOTIFY = 4
|
||||
UPDATE = 5
|
||||
|
||||
_by_text = {
|
||||
'QUERY' : QUERY,
|
||||
'IQUERY' : IQUERY,
|
||||
'STATUS' : STATUS,
|
||||
'NOTIFY' : NOTIFY,
|
||||
'UPDATE' : UPDATE
|
||||
}
|
||||
|
||||
# We construct the inverse mapping programmatically to ensure that we
|
||||
# cannot make any mistakes (e.g. omissions, cut-and-paste errors) that
|
||||
# would cause the mapping not to be true inverse.
|
||||
|
||||
_by_value = dict([(y, x) for x, y in _by_text.iteritems()])
|
||||
|
||||
|
||||
class UnknownOpcode(dns.exception.DNSException):
|
||||
"""Raised if an opcode is unknown."""
|
||||
pass
|
||||
|
||||
def from_text(text):
|
||||
"""Convert text into an opcode.
|
||||
|
||||
@param text: the textual opcode
|
||||
@type text: string
|
||||
@raises UnknownOpcode: the opcode is unknown
|
||||
@rtype: int
|
||||
"""
|
||||
|
||||
if text.isdigit():
|
||||
value = int(text)
|
||||
if value >= 0 and value <= 15:
|
||||
return value
|
||||
value = _by_text.get(text.upper())
|
||||
if value is None:
|
||||
raise UnknownOpcode
|
||||
return value
|
||||
|
||||
def from_flags(flags):
|
||||
"""Extract an opcode from DNS message flags.
|
||||
|
||||
@param flags: int
|
||||
@rtype: int
|
||||
"""
|
||||
|
||||
return (flags & 0x7800) >> 11
|
||||
|
||||
def to_flags(value):
|
||||
"""Convert an opcode to a value suitable for ORing into DNS message
|
||||
flags.
|
||||
@rtype: int
|
||||
"""
|
||||
|
||||
return (value << 11) & 0x7800
|
||||
|
||||
def to_text(value):
|
||||
"""Convert an opcode to text.
|
||||
|
||||
@param value: the opcdoe
|
||||
@type value: int
|
||||
@raises UnknownOpcode: the opcode is unknown
|
||||
@rtype: string
|
||||
"""
|
||||
|
||||
text = _by_value.get(value)
|
||||
if text is None:
|
||||
text = str(value)
|
||||
return text
|
||||
|
||||
def is_update(flags):
|
||||
"""True if the opcode in flags is UPDATE.
|
||||
|
||||
@param flags: DNS flags
|
||||
@type flags: int
|
||||
@rtype: bool
|
||||
"""
|
||||
|
||||
if (from_flags(flags) == UPDATE):
|
||||
return True
|
||||
return False
|
@ -1,428 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""Talk to a DNS server."""
|
||||
|
||||
from __future__ import generators
|
||||
|
||||
import errno
|
||||
import select
|
||||
import socket
|
||||
import struct
|
||||
import sys
|
||||
import time
|
||||
|
||||
import dns.exception
|
||||
import dns.inet
|
||||
import dns.name
|
||||
import dns.message
|
||||
import dns.rdataclass
|
||||
import dns.rdatatype
|
||||
|
||||
class UnexpectedSource(dns.exception.DNSException):
|
||||
"""Raised if a query response comes from an unexpected address or port."""
|
||||
pass
|
||||
|
||||
class BadResponse(dns.exception.FormError):
|
||||
"""Raised if a query response does not respond to the question asked."""
|
||||
pass
|
||||
|
||||
def _compute_expiration(timeout):
|
||||
if timeout is None:
|
||||
return None
|
||||
else:
|
||||
return time.time() + timeout
|
||||
|
||||
def _wait_for(ir, iw, ix, expiration):
|
||||
done = False
|
||||
while not done:
|
||||
if expiration is None:
|
||||
timeout = None
|
||||
else:
|
||||
timeout = expiration - time.time()
|
||||
if timeout <= 0.0:
|
||||
raise dns.exception.Timeout
|
||||
try:
|
||||
if timeout is None:
|
||||
(r, w, x) = select.select(ir, iw, ix)
|
||||
else:
|
||||
(r, w, x) = select.select(ir, iw, ix, timeout)
|
||||
except select.error, e:
|
||||
if e.args[0] != errno.EINTR:
|
||||
raise e
|
||||
done = True
|
||||
if len(r) == 0 and len(w) == 0 and len(x) == 0:
|
||||
raise dns.exception.Timeout
|
||||
|
||||
def _wait_for_readable(s, expiration):
|
||||
_wait_for([s], [], [s], expiration)
|
||||
|
||||
def _wait_for_writable(s, expiration):
|
||||
_wait_for([], [s], [s], expiration)
|
||||
|
||||
def _addresses_equal(af, a1, a2):
|
||||
# Convert the first value of the tuple, which is a textual format
|
||||
# address into binary form, so that we are not confused by different
|
||||
# textual representations of the same address
|
||||
n1 = dns.inet.inet_pton(af, a1[0])
|
||||
n2 = dns.inet.inet_pton(af, a2[0])
|
||||
return n1 == n2 and a1[1:] == a2[1:]
|
||||
|
||||
def udp(q, where, timeout=None, port=53, af=None, source=None, source_port=0,
|
||||
ignore_unexpected=False, one_rr_per_rrset=False):
|
||||
"""Return the response obtained after sending a query via UDP.
|
||||
|
||||
@param q: the query
|
||||
@type q: dns.message.Message
|
||||
@param where: where to send the message
|
||||
@type where: string containing an IPv4 or IPv6 address
|
||||
@param timeout: The number of seconds to wait before the query times out.
|
||||
If None, the default, wait forever.
|
||||
@type timeout: float
|
||||
@param port: The port to which to send the message. The default is 53.
|
||||
@type port: int
|
||||
@param af: the address family to use. The default is None, which
|
||||
causes the address family to use to be inferred from the form of of where.
|
||||
If the inference attempt fails, AF_INET is used.
|
||||
@type af: int
|
||||
@rtype: dns.message.Message object
|
||||
@param source: source address. The default is the IPv4 wildcard address.
|
||||
@type source: string
|
||||
@param source_port: The port from which to send the message.
|
||||
The default is 0.
|
||||
@type source_port: int
|
||||
@param ignore_unexpected: If True, ignore responses from unexpected
|
||||
sources. The default is False.
|
||||
@type ignore_unexpected: bool
|
||||
@param one_rr_per_rrset: Put each RR into its own RRset
|
||||
@type one_rr_per_rrset: bool
|
||||
"""
|
||||
|
||||
wire = q.to_wire()
|
||||
if af is None:
|
||||
try:
|
||||
af = dns.inet.af_for_address(where)
|
||||
except:
|
||||
af = dns.inet.AF_INET
|
||||
if af == dns.inet.AF_INET:
|
||||
destination = (where, port)
|
||||
if source is not None:
|
||||
source = (source, source_port)
|
||||
elif af == dns.inet.AF_INET6:
|
||||
destination = (where, port, 0, 0)
|
||||
if source is not None:
|
||||
source = (source, source_port, 0, 0)
|
||||
s = socket.socket(af, socket.SOCK_DGRAM, 0)
|
||||
try:
|
||||
expiration = _compute_expiration(timeout)
|
||||
s.setblocking(0)
|
||||
if source is not None:
|
||||
s.bind(source)
|
||||
_wait_for_writable(s, expiration)
|
||||
s.sendto(wire, destination)
|
||||
while 1:
|
||||
_wait_for_readable(s, expiration)
|
||||
(wire, from_address) = s.recvfrom(65535)
|
||||
if _addresses_equal(af, from_address, destination) or \
|
||||
(dns.inet.is_multicast(where) and \
|
||||
from_address[1:] == destination[1:]):
|
||||
break
|
||||
if not ignore_unexpected:
|
||||
raise UnexpectedSource('got a response from '
|
||||
'%s instead of %s' % (from_address,
|
||||
destination))
|
||||
finally:
|
||||
s.close()
|
||||
r = dns.message.from_wire(wire, keyring=q.keyring, request_mac=q.mac,
|
||||
one_rr_per_rrset=one_rr_per_rrset)
|
||||
if not q.is_response(r):
|
||||
raise BadResponse
|
||||
return r
|
||||
|
||||
def _net_read(sock, count, expiration):
|
||||
"""Read the specified number of bytes from sock. Keep trying until we
|
||||
either get the desired amount, or we hit EOF.
|
||||
A Timeout exception will be raised if the operation is not completed
|
||||
by the expiration time.
|
||||
"""
|
||||
s = ''
|
||||
while count > 0:
|
||||
_wait_for_readable(sock, expiration)
|
||||
n = sock.recv(count)
|
||||
if n == '':
|
||||
raise EOFError
|
||||
count = count - len(n)
|
||||
s = s + n
|
||||
return s
|
||||
|
||||
def _net_write(sock, data, expiration):
|
||||
"""Write the specified data to the socket.
|
||||
A Timeout exception will be raised if the operation is not completed
|
||||
by the expiration time.
|
||||
"""
|
||||
current = 0
|
||||
l = len(data)
|
||||
while current < l:
|
||||
_wait_for_writable(sock, expiration)
|
||||
current += sock.send(data[current:])
|
||||
|
||||
def _connect(s, address):
|
||||
try:
|
||||
s.connect(address)
|
||||
except socket.error:
|
||||
(ty, v) = sys.exc_info()[:2]
|
||||
if v[0] != errno.EINPROGRESS and \
|
||||
v[0] != errno.EWOULDBLOCK and \
|
||||
v[0] != errno.EALREADY:
|
||||
raise v
|
||||
|
||||
def tcp(q, where, timeout=None, port=53, af=None, source=None, source_port=0,
|
||||
one_rr_per_rrset=False):
|
||||
"""Return the response obtained after sending a query via TCP.
|
||||
|
||||
@param q: the query
|
||||
@type q: dns.message.Message object
|
||||
@param where: where to send the message
|
||||
@type where: string containing an IPv4 or IPv6 address
|
||||
@param timeout: The number of seconds to wait before the query times out.
|
||||
If None, the default, wait forever.
|
||||
@type timeout: float
|
||||
@param port: The port to which to send the message. The default is 53.
|
||||
@type port: int
|
||||
@param af: the address family to use. The default is None, which
|
||||
causes the address family to use to be inferred from the form of of where.
|
||||
If the inference attempt fails, AF_INET is used.
|
||||
@type af: int
|
||||
@rtype: dns.message.Message object
|
||||
@param source: source address. The default is the IPv4 wildcard address.
|
||||
@type source: string
|
||||
@param source_port: The port from which to send the message.
|
||||
The default is 0.
|
||||
@type source_port: int
|
||||
@param one_rr_per_rrset: Put each RR into its own RRset
|
||||
@type one_rr_per_rrset: bool
|
||||
"""
|
||||
|
||||
wire = q.to_wire()
|
||||
if af is None:
|
||||
try:
|
||||
af = dns.inet.af_for_address(where)
|
||||
except:
|
||||
af = dns.inet.AF_INET
|
||||
if af == dns.inet.AF_INET:
|
||||
destination = (where, port)
|
||||
if source is not None:
|
||||
source = (source, source_port)
|
||||
elif af == dns.inet.AF_INET6:
|
||||
destination = (where, port, 0, 0)
|
||||
if source is not None:
|
||||
source = (source, source_port, 0, 0)
|
||||
s = socket.socket(af, socket.SOCK_STREAM, 0)
|
||||
try:
|
||||
expiration = _compute_expiration(timeout)
|
||||
s.setblocking(0)
|
||||
if source is not None:
|
||||
s.bind(source)
|
||||
_connect(s, destination)
|
||||
|
||||
l = len(wire)
|
||||
|
||||
# copying the wire into tcpmsg is inefficient, but lets us
|
||||
# avoid writev() or doing a short write that would get pushed
|
||||
# onto the net
|
||||
tcpmsg = struct.pack("!H", l) + wire
|
||||
_net_write(s, tcpmsg, expiration)
|
||||
ldata = _net_read(s, 2, expiration)
|
||||
(l,) = struct.unpack("!H", ldata)
|
||||
wire = _net_read(s, l, expiration)
|
||||
finally:
|
||||
s.close()
|
||||
r = dns.message.from_wire(wire, keyring=q.keyring, request_mac=q.mac,
|
||||
one_rr_per_rrset=one_rr_per_rrset)
|
||||
if not q.is_response(r):
|
||||
raise BadResponse
|
||||
return r
|
||||
|
||||
def xfr(where, zone, rdtype=dns.rdatatype.AXFR, rdclass=dns.rdataclass.IN,
|
||||
timeout=None, port=53, keyring=None, keyname=None, relativize=True,
|
||||
af=None, lifetime=None, source=None, source_port=0, serial=0,
|
||||
use_udp=False, keyalgorithm=dns.tsig.default_algorithm):
|
||||
"""Return a generator for the responses to a zone transfer.
|
||||
|
||||
@param where: where to send the message
|
||||
@type where: string containing an IPv4 or IPv6 address
|
||||
@param zone: The name of the zone to transfer
|
||||
@type zone: dns.name.Name object or string
|
||||
@param rdtype: The type of zone transfer. The default is
|
||||
dns.rdatatype.AXFR.
|
||||
@type rdtype: int or string
|
||||
@param rdclass: The class of the zone transfer. The default is
|
||||
dns.rdatatype.IN.
|
||||
@type rdclass: int or string
|
||||
@param timeout: The number of seconds to wait for each response message.
|
||||
If None, the default, wait forever.
|
||||
@type timeout: float
|
||||
@param port: The port to which to send the message. The default is 53.
|
||||
@type port: int
|
||||
@param keyring: The TSIG keyring to use
|
||||
@type keyring: dict
|
||||
@param keyname: The name of the TSIG key to use
|
||||
@type keyname: dns.name.Name object or string
|
||||
@param relativize: If True, all names in the zone will be relativized to
|
||||
the zone origin. It is essential that the relativize setting matches
|
||||
the one specified to dns.zone.from_xfr().
|
||||
@type relativize: bool
|
||||
@param af: the address family to use. The default is None, which
|
||||
causes the address family to use to be inferred from the form of of where.
|
||||
If the inference attempt fails, AF_INET is used.
|
||||
@type af: int
|
||||
@param lifetime: The total number of seconds to spend doing the transfer.
|
||||
If None, the default, then there is no limit on the time the transfer may
|
||||
take.
|
||||
@type lifetime: float
|
||||
@rtype: generator of dns.message.Message objects.
|
||||
@param source: source address. The default is the IPv4 wildcard address.
|
||||
@type source: string
|
||||
@param source_port: The port from which to send the message.
|
||||
The default is 0.
|
||||
@type source_port: int
|
||||
@param serial: The SOA serial number to use as the base for an IXFR diff
|
||||
sequence (only meaningful if rdtype == dns.rdatatype.IXFR).
|
||||
@type serial: int
|
||||
@param use_udp: Use UDP (only meaningful for IXFR)
|
||||
@type use_udp: bool
|
||||
@param keyalgorithm: The TSIG algorithm to use; defaults to
|
||||
dns.tsig.default_algorithm
|
||||
@type keyalgorithm: string
|
||||
"""
|
||||
|
||||
if isinstance(zone, (str, unicode)):
|
||||
zone = dns.name.from_text(zone)
|
||||
if isinstance(rdtype, str):
|
||||
rdtype = dns.rdatatype.from_text(rdtype)
|
||||
q = dns.message.make_query(zone, rdtype, rdclass)
|
||||
if rdtype == dns.rdatatype.IXFR:
|
||||
rrset = dns.rrset.from_text(zone, 0, 'IN', 'SOA',
|
||||
'. . %u 0 0 0 0' % serial)
|
||||
q.authority.append(rrset)
|
||||
if not keyring is None:
|
||||
q.use_tsig(keyring, keyname, algorithm=keyalgorithm)
|
||||
wire = q.to_wire()
|
||||
if af is None:
|
||||
try:
|
||||
af = dns.inet.af_for_address(where)
|
||||
except:
|
||||
af = dns.inet.AF_INET
|
||||
if af == dns.inet.AF_INET:
|
||||
destination = (where, port)
|
||||
if source is not None:
|
||||
source = (source, source_port)
|
||||
elif af == dns.inet.AF_INET6:
|
||||
destination = (where, port, 0, 0)
|
||||
if source is not None:
|
||||
source = (source, source_port, 0, 0)
|
||||
if use_udp:
|
||||
if rdtype != dns.rdatatype.IXFR:
|
||||
raise ValueError('cannot do a UDP AXFR')
|
||||
s = socket.socket(af, socket.SOCK_DGRAM, 0)
|
||||
else:
|
||||
s = socket.socket(af, socket.SOCK_STREAM, 0)
|
||||
s.setblocking(0)
|
||||
if source is not None:
|
||||
s.bind(source)
|
||||
expiration = _compute_expiration(lifetime)
|
||||
_connect(s, destination)
|
||||
l = len(wire)
|
||||
if use_udp:
|
||||
_wait_for_writable(s, expiration)
|
||||
s.send(wire)
|
||||
else:
|
||||
tcpmsg = struct.pack("!H", l) + wire
|
||||
_net_write(s, tcpmsg, expiration)
|
||||
done = False
|
||||
soa_rrset = None
|
||||
soa_count = 0
|
||||
if relativize:
|
||||
origin = zone
|
||||
oname = dns.name.empty
|
||||
else:
|
||||
origin = None
|
||||
oname = zone
|
||||
tsig_ctx = None
|
||||
first = True
|
||||
while not done:
|
||||
mexpiration = _compute_expiration(timeout)
|
||||
if mexpiration is None or mexpiration > expiration:
|
||||
mexpiration = expiration
|
||||
if use_udp:
|
||||
_wait_for_readable(s, expiration)
|
||||
(wire, from_address) = s.recvfrom(65535)
|
||||
else:
|
||||
ldata = _net_read(s, 2, mexpiration)
|
||||
(l,) = struct.unpack("!H", ldata)
|
||||
wire = _net_read(s, l, mexpiration)
|
||||
r = dns.message.from_wire(wire, keyring=q.keyring, request_mac=q.mac,
|
||||
xfr=True, origin=origin, tsig_ctx=tsig_ctx,
|
||||
multi=True, first=first,
|
||||
one_rr_per_rrset=(rdtype==dns.rdatatype.IXFR))
|
||||
tsig_ctx = r.tsig_ctx
|
||||
first = False
|
||||
answer_index = 0
|
||||
delete_mode = False
|
||||
expecting_SOA = False
|
||||
if soa_rrset is None:
|
||||
if not r.answer or r.answer[0].name != oname:
|
||||
raise dns.exception.FormError
|
||||
rrset = r.answer[0]
|
||||
if rrset.rdtype != dns.rdatatype.SOA:
|
||||
raise dns.exception.FormError("first RRset is not an SOA")
|
||||
answer_index = 1
|
||||
soa_rrset = rrset.copy()
|
||||
if rdtype == dns.rdatatype.IXFR:
|
||||
if soa_rrset[0].serial == serial:
|
||||
#
|
||||
# We're already up-to-date.
|
||||
#
|
||||
done = True
|
||||
else:
|
||||
expecting_SOA = True
|
||||
#
|
||||
# Process SOAs in the answer section (other than the initial
|
||||
# SOA in the first message).
|
||||
#
|
||||
for rrset in r.answer[answer_index:]:
|
||||
if done:
|
||||
raise dns.exception.FormError("answers after final SOA")
|
||||
if rrset.rdtype == dns.rdatatype.SOA and rrset.name == oname:
|
||||
if expecting_SOA:
|
||||
if rrset[0].serial != serial:
|
||||
raise dns.exception.FormError("IXFR base serial mismatch")
|
||||
expecting_SOA = False
|
||||
elif rdtype == dns.rdatatype.IXFR:
|
||||
delete_mode = not delete_mode
|
||||
if rrset == soa_rrset and not delete_mode:
|
||||
done = True
|
||||
elif expecting_SOA:
|
||||
#
|
||||
# We made an IXFR request and are expecting another
|
||||
# SOA RR, but saw something else, so this must be an
|
||||
# AXFR response.
|
||||
#
|
||||
rdtype = dns.rdatatype.AXFR
|
||||
expecting_SOA = False
|
||||
if done and q.keyring and not r.had_tsig:
|
||||
raise dns.exception.FormError("missing TSIG")
|
||||
yield r
|
||||
s.close()
|
@ -1,119 +0,0 @@
|
||||
# Copyright (C) 2001-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""DNS Result Codes."""
|
||||
|
||||
import dns.exception
|
||||
|
||||
NOERROR = 0
|
||||
FORMERR = 1
|
||||
SERVFAIL = 2
|
||||
NXDOMAIN = 3
|
||||
NOTIMP = 4
|
||||
REFUSED = 5
|
||||
YXDOMAIN = 6
|
||||
YXRRSET = 7
|
||||
NXRRSET = 8
|
||||
NOTAUTH = 9
|
||||
NOTZONE = 10
|
||||
BADVERS = 16
|
||||
|
||||
_by_text = {
|
||||
'NOERROR' : NOERROR,
|
||||
'FORMERR' : FORMERR,
|
||||
'SERVFAIL' : SERVFAIL,
|
||||
'NXDOMAIN' : NXDOMAIN,
|
||||
'NOTIMP' : NOTIMP,
|
||||
'REFUSED' : REFUSED,
|
||||
'YXDOMAIN' : YXDOMAIN,
|
||||
'YXRRSET' : YXRRSET,
|
||||
'NXRRSET' : NXRRSET,
|
||||
'NOTAUTH' : NOTAUTH,
|
||||
'NOTZONE' : NOTZONE,
|
||||
'BADVERS' : BADVERS
|
||||
}
|
||||
|
||||
# We construct the inverse mapping programmatically to ensure that we
|
||||
# cannot make any mistakes (e.g. omissions, cut-and-paste errors) that
|
||||
# would cause the mapping not to be a true inverse.
|
||||
|
||||
_by_value = dict([(y, x) for x, y in _by_text.iteritems()])
|
||||
|
||||
|
||||
class UnknownRcode(dns.exception.DNSException):
|
||||
"""Raised if an rcode is unknown."""
|
||||
pass
|
||||
|
||||
def from_text(text):
|
||||
"""Convert text into an rcode.
|
||||
|
||||
@param text: the texual rcode
|
||||
@type text: string
|
||||
@raises UnknownRcode: the rcode is unknown
|
||||
@rtype: int
|
||||
"""
|
||||
|
||||
if text.isdigit():
|
||||
v = int(text)
|
||||
if v >= 0 and v <= 4095:
|
||||
return v
|
||||
v = _by_text.get(text.upper())
|
||||
if v is None:
|
||||
raise UnknownRcode
|
||||
return v
|
||||
|
||||
def from_flags(flags, ednsflags):
|
||||
"""Return the rcode value encoded by flags and ednsflags.
|
||||
|
||||
@param flags: the DNS flags
|
||||
@type flags: int
|
||||
@param ednsflags: the EDNS flags
|
||||
@type ednsflags: int
|
||||
@raises ValueError: rcode is < 0 or > 4095
|
||||
@rtype: int
|
||||
"""
|
||||
|
||||
value = (flags & 0x000f) | ((ednsflags >> 20) & 0xff0)
|
||||
if value < 0 or value > 4095:
|
||||
raise ValueError('rcode must be >= 0 and <= 4095')
|
||||
return value
|
||||
|
||||
def to_flags(value):
|
||||
"""Return a (flags, ednsflags) tuple which encodes the rcode.
|
||||
|
||||
@param value: the rcode
|
||||
@type value: int
|
||||
@raises ValueError: rcode is < 0 or > 4095
|
||||
@rtype: (int, int) tuple
|
||||
"""
|
||||
|
||||
if value < 0 or value > 4095:
|
||||
raise ValueError('rcode must be >= 0 and <= 4095')
|
||||
v = value & 0xf
|
||||
ev = long(value & 0xff0) << 20
|
||||
return (v, ev)
|
||||
|
||||
def to_text(value):
|
||||
"""Convert rcode into text.
|
||||
|
||||
@param value: the rcode
|
||||
@type value: int
|
||||
@rtype: string
|
||||
"""
|
||||
|
||||
text = _by_value.get(value)
|
||||
if text is None:
|
||||
text = str(value)
|
||||
return text
|
@ -1,456 +0,0 @@
|
||||
# Copyright (C) 2001-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""DNS rdata.
|
||||
|
||||
@var _rdata_modules: A dictionary mapping a (rdclass, rdtype) tuple to
|
||||
the module which implements that type.
|
||||
@type _rdata_modules: dict
|
||||
@var _module_prefix: The prefix to use when forming modules names. The
|
||||
default is 'dns.rdtypes'. Changing this value will break the library.
|
||||
@type _module_prefix: string
|
||||
@var _hex_chunk: At most this many octets that will be represented in each
|
||||
chunk of hexstring that _hexify() produces before whitespace occurs.
|
||||
@type _hex_chunk: int"""
|
||||
|
||||
import cStringIO
|
||||
|
||||
import dns.exception
|
||||
import dns.rdataclass
|
||||
import dns.rdatatype
|
||||
import dns.tokenizer
|
||||
|
||||
_hex_chunksize = 32
|
||||
|
||||
def _hexify(data, chunksize=None):
|
||||
"""Convert a binary string into its hex encoding, broken up into chunks
|
||||
of I{chunksize} characters separated by a space.
|
||||
|
||||
@param data: the binary string
|
||||
@type data: string
|
||||
@param chunksize: the chunk size. Default is L{dns.rdata._hex_chunksize}
|
||||
@rtype: string
|
||||
"""
|
||||
|
||||
if chunksize is None:
|
||||
chunksize = _hex_chunksize
|
||||
hex = data.encode('hex_codec')
|
||||
l = len(hex)
|
||||
if l > chunksize:
|
||||
chunks = []
|
||||
i = 0
|
||||
while i < l:
|
||||
chunks.append(hex[i : i + chunksize])
|
||||
i += chunksize
|
||||
hex = ' '.join(chunks)
|
||||
return hex
|
||||
|
||||
_base64_chunksize = 32
|
||||
|
||||
def _base64ify(data, chunksize=None):
|
||||
"""Convert a binary string into its base64 encoding, broken up into chunks
|
||||
of I{chunksize} characters separated by a space.
|
||||
|
||||
@param data: the binary string
|
||||
@type data: string
|
||||
@param chunksize: the chunk size. Default is
|
||||
L{dns.rdata._base64_chunksize}
|
||||
@rtype: string
|
||||
"""
|
||||
|
||||
if chunksize is None:
|
||||
chunksize = _base64_chunksize
|
||||
b64 = data.encode('base64_codec')
|
||||
b64 = b64.replace('\n', '')
|
||||
l = len(b64)
|
||||
if l > chunksize:
|
||||
chunks = []
|
||||
i = 0
|
||||
while i < l:
|
||||
chunks.append(b64[i : i + chunksize])
|
||||
i += chunksize
|
||||
b64 = ' '.join(chunks)
|
||||
return b64
|
||||
|
||||
__escaped = {
|
||||
'"' : True,
|
||||
'\\' : True,
|
||||
}
|
||||
|
||||
def _escapify(qstring):
|
||||
"""Escape the characters in a quoted string which need it.
|
||||
|
||||
@param qstring: the string
|
||||
@type qstring: string
|
||||
@returns: the escaped string
|
||||
@rtype: string
|
||||
"""
|
||||
|
||||
text = ''
|
||||
for c in qstring:
|
||||
if c in __escaped:
|
||||
text += '\\' + c
|
||||
elif ord(c) >= 0x20 and ord(c) < 0x7F:
|
||||
text += c
|
||||
else:
|
||||
text += '\\%03d' % ord(c)
|
||||
return text
|
||||
|
||||
def _truncate_bitmap(what):
|
||||
"""Determine the index of greatest byte that isn't all zeros, and
|
||||
return the bitmap that contains all the bytes less than that index.
|
||||
|
||||
@param what: a string of octets representing a bitmap.
|
||||
@type what: string
|
||||
@rtype: string
|
||||
"""
|
||||
|
||||
for i in xrange(len(what) - 1, -1, -1):
|
||||
if what[i] != '\x00':
|
||||
break
|
||||
return ''.join(what[0 : i + 1])
|
||||
|
||||
class Rdata(object):
|
||||
"""Base class for all DNS rdata types.
|
||||
"""
|
||||
|
||||
__slots__ = ['rdclass', 'rdtype']
|
||||
|
||||
def __init__(self, rdclass, rdtype):
|
||||
"""Initialize an rdata.
|
||||
@param rdclass: The rdata class
|
||||
@type rdclass: int
|
||||
@param rdtype: The rdata type
|
||||
@type rdtype: int
|
||||
"""
|
||||
|
||||
self.rdclass = rdclass
|
||||
self.rdtype = rdtype
|
||||
|
||||
def covers(self):
|
||||
"""DNS SIG/RRSIG rdatas apply to a specific type; this type is
|
||||
returned by the covers() function. If the rdata type is not
|
||||
SIG or RRSIG, dns.rdatatype.NONE is returned. This is useful when
|
||||
creating rdatasets, allowing the rdataset to contain only RRSIGs
|
||||
of a particular type, e.g. RRSIG(NS).
|
||||
@rtype: int
|
||||
"""
|
||||
|
||||
return dns.rdatatype.NONE
|
||||
|
||||
def extended_rdatatype(self):
|
||||
"""Return a 32-bit type value, the least significant 16 bits of
|
||||
which are the ordinary DNS type, and the upper 16 bits of which are
|
||||
the "covered" type, if any.
|
||||
@rtype: int
|
||||
"""
|
||||
|
||||
return self.covers() << 16 | self.rdtype
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
"""Convert an rdata to text format.
|
||||
@rtype: string
|
||||
"""
|
||||
raise NotImplementedError
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
"""Convert an rdata to wire format.
|
||||
@rtype: string
|
||||
"""
|
||||
|
||||
raise NotImplementedError
|
||||
|
||||
def to_digestable(self, origin = None):
|
||||
"""Convert rdata to a format suitable for digesting in hashes. This
|
||||
is also the DNSSEC canonical form."""
|
||||
f = cStringIO.StringIO()
|
||||
self.to_wire(f, None, origin)
|
||||
return f.getvalue()
|
||||
|
||||
def validate(self):
|
||||
"""Check that the current contents of the rdata's fields are
|
||||
valid. If you change an rdata by assigning to its fields,
|
||||
it is a good idea to call validate() when you are done making
|
||||
changes.
|
||||
"""
|
||||
dns.rdata.from_text(self.rdclass, self.rdtype, self.to_text())
|
||||
|
||||
def __repr__(self):
|
||||
covers = self.covers()
|
||||
if covers == dns.rdatatype.NONE:
|
||||
ctext = ''
|
||||
else:
|
||||
ctext = '(' + dns.rdatatype.to_text(covers) + ')'
|
||||
return '<DNS ' + dns.rdataclass.to_text(self.rdclass) + ' ' + \
|
||||
dns.rdatatype.to_text(self.rdtype) + ctext + ' rdata: ' + \
|
||||
str(self) + '>'
|
||||
|
||||
def __str__(self):
|
||||
return self.to_text()
|
||||
|
||||
def _cmp(self, other):
|
||||
"""Compare an rdata with another rdata of the same rdtype and
|
||||
rdclass. Return < 0 if self < other in the DNSSEC ordering,
|
||||
0 if self == other, and > 0 if self > other.
|
||||
"""
|
||||
|
||||
raise NotImplementedError
|
||||
|
||||
def __eq__(self, other):
|
||||
if not isinstance(other, Rdata):
|
||||
return False
|
||||
if self.rdclass != other.rdclass or \
|
||||
self.rdtype != other.rdtype:
|
||||
return False
|
||||
return self._cmp(other) == 0
|
||||
|
||||
def __ne__(self, other):
|
||||
if not isinstance(other, Rdata):
|
||||
return True
|
||||
if self.rdclass != other.rdclass or \
|
||||
self.rdtype != other.rdtype:
|
||||
return True
|
||||
return self._cmp(other) != 0
|
||||
|
||||
def __lt__(self, other):
|
||||
if not isinstance(other, Rdata) or \
|
||||
self.rdclass != other.rdclass or \
|
||||
self.rdtype != other.rdtype:
|
||||
return NotImplemented
|
||||
return self._cmp(other) < 0
|
||||
|
||||
def __le__(self, other):
|
||||
if not isinstance(other, Rdata) or \
|
||||
self.rdclass != other.rdclass or \
|
||||
self.rdtype != other.rdtype:
|
||||
return NotImplemented
|
||||
return self._cmp(other) <= 0
|
||||
|
||||
def __ge__(self, other):
|
||||
if not isinstance(other, Rdata) or \
|
||||
self.rdclass != other.rdclass or \
|
||||
self.rdtype != other.rdtype:
|
||||
return NotImplemented
|
||||
return self._cmp(other) >= 0
|
||||
|
||||
def __gt__(self, other):
|
||||
if not isinstance(other, Rdata) or \
|
||||
self.rdclass != other.rdclass or \
|
||||
self.rdtype != other.rdtype:
|
||||
return NotImplemented
|
||||
return self._cmp(other) > 0
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
"""Build an rdata object from text format.
|
||||
|
||||
@param rdclass: The rdata class
|
||||
@type rdclass: int
|
||||
@param rdtype: The rdata type
|
||||
@type rdtype: int
|
||||
@param tok: The tokenizer
|
||||
@type tok: dns.tokenizer.Tokenizer
|
||||
@param origin: The origin to use for relative names
|
||||
@type origin: dns.name.Name
|
||||
@param relativize: should names be relativized?
|
||||
@type relativize: bool
|
||||
@rtype: dns.rdata.Rdata instance
|
||||
"""
|
||||
|
||||
raise NotImplementedError
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
"""Build an rdata object from wire format
|
||||
|
||||
@param rdclass: The rdata class
|
||||
@type rdclass: int
|
||||
@param rdtype: The rdata type
|
||||
@type rdtype: int
|
||||
@param wire: The wire-format message
|
||||
@type wire: string
|
||||
@param current: The offet in wire of the beginning of the rdata.
|
||||
@type current: int
|
||||
@param rdlen: The length of the wire-format rdata
|
||||
@type rdlen: int
|
||||
@param origin: The origin to use for relative names
|
||||
@type origin: dns.name.Name
|
||||
@rtype: dns.rdata.Rdata instance
|
||||
"""
|
||||
|
||||
raise NotImplementedError
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def choose_relativity(self, origin = None, relativize = True):
|
||||
"""Convert any domain names in the rdata to the specified
|
||||
relativization.
|
||||
"""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class GenericRdata(Rdata):
|
||||
"""Generate Rdata Class
|
||||
|
||||
This class is used for rdata types for which we have no better
|
||||
implementation. It implements the DNS "unknown RRs" scheme.
|
||||
"""
|
||||
|
||||
__slots__ = ['data']
|
||||
|
||||
def __init__(self, rdclass, rdtype, data):
|
||||
super(GenericRdata, self).__init__(rdclass, rdtype)
|
||||
self.data = data
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
return r'\# %d ' % len(self.data) + _hexify(self.data)
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
token = tok.get()
|
||||
if not token.is_identifier() or token.value != '\#':
|
||||
raise dns.exception.SyntaxError(r'generic rdata does not start with \#')
|
||||
length = tok.get_int()
|
||||
chunks = []
|
||||
while 1:
|
||||
token = tok.get()
|
||||
if token.is_eol_or_eof():
|
||||
break
|
||||
chunks.append(token.value)
|
||||
hex = ''.join(chunks)
|
||||
data = hex.decode('hex_codec')
|
||||
if len(data) != length:
|
||||
raise dns.exception.SyntaxError('generic rdata hex data has wrong length')
|
||||
return cls(rdclass, rdtype, data)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
file.write(self.data)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
return cls(rdclass, rdtype, wire[current : current + rdlen])
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
return cmp(self.data, other.data)
|
||||
|
||||
_rdata_modules = {}
|
||||
_module_prefix = 'dns.rdtypes'
|
||||
|
||||
def get_rdata_class(rdclass, rdtype):
|
||||
|
||||
def import_module(name):
|
||||
mod = __import__(name)
|
||||
components = name.split('.')
|
||||
for comp in components[1:]:
|
||||
mod = getattr(mod, comp)
|
||||
return mod
|
||||
|
||||
mod = _rdata_modules.get((rdclass, rdtype))
|
||||
rdclass_text = dns.rdataclass.to_text(rdclass)
|
||||
rdtype_text = dns.rdatatype.to_text(rdtype)
|
||||
rdtype_text = rdtype_text.replace('-', '_')
|
||||
if not mod:
|
||||
mod = _rdata_modules.get((dns.rdatatype.ANY, rdtype))
|
||||
if not mod:
|
||||
try:
|
||||
mod = import_module('.'.join([_module_prefix,
|
||||
rdclass_text, rdtype_text]))
|
||||
_rdata_modules[(rdclass, rdtype)] = mod
|
||||
except ImportError:
|
||||
try:
|
||||
mod = import_module('.'.join([_module_prefix,
|
||||
'ANY', rdtype_text]))
|
||||
_rdata_modules[(dns.rdataclass.ANY, rdtype)] = mod
|
||||
except ImportError:
|
||||
mod = None
|
||||
if mod:
|
||||
cls = getattr(mod, rdtype_text)
|
||||
else:
|
||||
cls = GenericRdata
|
||||
return cls
|
||||
|
||||
def from_text(rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
"""Build an rdata object from text format.
|
||||
|
||||
This function attempts to dynamically load a class which
|
||||
implements the specified rdata class and type. If there is no
|
||||
class-and-type-specific implementation, the GenericRdata class
|
||||
is used.
|
||||
|
||||
Once a class is chosen, its from_text() class method is called
|
||||
with the parameters to this function.
|
||||
|
||||
@param rdclass: The rdata class
|
||||
@type rdclass: int
|
||||
@param rdtype: The rdata type
|
||||
@type rdtype: int
|
||||
@param tok: The tokenizer
|
||||
@type tok: dns.tokenizer.Tokenizer
|
||||
@param origin: The origin to use for relative names
|
||||
@type origin: dns.name.Name
|
||||
@param relativize: Should names be relativized?
|
||||
@type relativize: bool
|
||||
@rtype: dns.rdata.Rdata instance"""
|
||||
|
||||
if isinstance(tok, str):
|
||||
tok = dns.tokenizer.Tokenizer(tok)
|
||||
cls = get_rdata_class(rdclass, rdtype)
|
||||
if cls != GenericRdata:
|
||||
# peek at first token
|
||||
token = tok.get()
|
||||
tok.unget(token)
|
||||
if token.is_identifier() and \
|
||||
token.value == r'\#':
|
||||
#
|
||||
# Known type using the generic syntax. Extract the
|
||||
# wire form from the generic syntax, and then run
|
||||
# from_wire on it.
|
||||
#
|
||||
rdata = GenericRdata.from_text(rdclass, rdtype, tok, origin,
|
||||
relativize)
|
||||
return from_wire(rdclass, rdtype, rdata.data, 0, len(rdata.data),
|
||||
origin)
|
||||
return cls.from_text(rdclass, rdtype, tok, origin, relativize)
|
||||
|
||||
def from_wire(rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
"""Build an rdata object from wire format
|
||||
|
||||
This function attempts to dynamically load a class which
|
||||
implements the specified rdata class and type. If there is no
|
||||
class-and-type-specific implementation, the GenericRdata class
|
||||
is used.
|
||||
|
||||
Once a class is chosen, its from_wire() class method is called
|
||||
with the parameters to this function.
|
||||
|
||||
@param rdclass: The rdata class
|
||||
@type rdclass: int
|
||||
@param rdtype: The rdata type
|
||||
@type rdtype: int
|
||||
@param wire: The wire-format message
|
||||
@type wire: string
|
||||
@param current: The offet in wire of the beginning of the rdata.
|
||||
@type current: int
|
||||
@param rdlen: The length of the wire-format rdata
|
||||
@type rdlen: int
|
||||
@param origin: The origin to use for relative names
|
||||
@type origin: dns.name.Name
|
||||
@rtype: dns.rdata.Rdata instance"""
|
||||
|
||||
cls = get_rdata_class(rdclass, rdtype)
|
||||
return cls.from_wire(rdclass, rdtype, wire, current, rdlen, origin)
|
@ -1,114 +0,0 @@
|
||||
# Copyright (C) 2001-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""DNS Rdata Classes.
|
||||
|
||||
@var _by_text: The rdata class textual name to value mapping
|
||||
@type _by_text: dict
|
||||
@var _by_value: The rdata class value to textual name mapping
|
||||
@type _by_value: dict
|
||||
@var _metaclasses: If an rdataclass is a metaclass, there will be a mapping
|
||||
whose key is the rdatatype value and whose value is True in this dictionary.
|
||||
@type _metaclasses: dict"""
|
||||
|
||||
import re
|
||||
|
||||
import dns.exception
|
||||
|
||||
RESERVED0 = 0
|
||||
IN = 1
|
||||
CH = 3
|
||||
HS = 4
|
||||
NONE = 254
|
||||
ANY = 255
|
||||
|
||||
_by_text = {
|
||||
'RESERVED0' : RESERVED0,
|
||||
'IN' : IN,
|
||||
'CH' : CH,
|
||||
'HS' : HS,
|
||||
'NONE' : NONE,
|
||||
'ANY' : ANY
|
||||
}
|
||||
|
||||
# We construct the inverse mapping programmatically to ensure that we
|
||||
# cannot make any mistakes (e.g. omissions, cut-and-paste errors) that
|
||||
# would cause the mapping not to be true inverse.
|
||||
|
||||
_by_value = dict([(y, x) for x, y in _by_text.iteritems()])
|
||||
|
||||
# Now that we've built the inverse map, we can add class aliases to
|
||||
# the _by_text mapping.
|
||||
|
||||
_by_text.update({
|
||||
'INTERNET' : IN,
|
||||
'CHAOS' : CH,
|
||||
'HESIOD' : HS
|
||||
})
|
||||
|
||||
_metaclasses = {
|
||||
NONE : True,
|
||||
ANY : True
|
||||
}
|
||||
|
||||
_unknown_class_pattern = re.compile('CLASS([0-9]+)$', re.I);
|
||||
|
||||
class UnknownRdataclass(dns.exception.DNSException):
|
||||
"""Raised when a class is unknown."""
|
||||
pass
|
||||
|
||||
def from_text(text):
|
||||
"""Convert text into a DNS rdata class value.
|
||||
@param text: the text
|
||||
@type text: string
|
||||
@rtype: int
|
||||
@raises dns.rdataclass.UnknownRdataClass: the class is unknown
|
||||
@raises ValueError: the rdata class value is not >= 0 and <= 65535
|
||||
"""
|
||||
|
||||
value = _by_text.get(text.upper())
|
||||
if value is None:
|
||||
match = _unknown_class_pattern.match(text)
|
||||
if match == None:
|
||||
raise UnknownRdataclass
|
||||
value = int(match.group(1))
|
||||
if value < 0 or value > 65535:
|
||||
raise ValueError("class must be between >= 0 and <= 65535")
|
||||
return value
|
||||
|
||||
def to_text(value):
|
||||
"""Convert a DNS rdata class to text.
|
||||
@param value: the rdata class value
|
||||
@type value: int
|
||||
@rtype: string
|
||||
@raises ValueError: the rdata class value is not >= 0 and <= 65535
|
||||
"""
|
||||
|
||||
if value < 0 or value > 65535:
|
||||
raise ValueError("class must be between >= 0 and <= 65535")
|
||||
text = _by_value.get(value)
|
||||
if text is None:
|
||||
text = 'CLASS' + `value`
|
||||
return text
|
||||
|
||||
def is_metaclass(rdclass):
|
||||
"""True if the class is a metaclass.
|
||||
@param rdclass: the rdata class
|
||||
@type rdclass: int
|
||||
@rtype: bool"""
|
||||
|
||||
if _metaclasses.has_key(rdclass):
|
||||
return True
|
||||
return False
|
@ -1,329 +0,0 @@
|
||||
# Copyright (C) 2001-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""DNS rdatasets (an rdataset is a set of rdatas of a given type and class)"""
|
||||
|
||||
import random
|
||||
import StringIO
|
||||
import struct
|
||||
|
||||
import dns.exception
|
||||
import dns.rdatatype
|
||||
import dns.rdataclass
|
||||
import dns.rdata
|
||||
import dns.set
|
||||
|
||||
# define SimpleSet here for backwards compatibility
|
||||
SimpleSet = dns.set.Set
|
||||
|
||||
class DifferingCovers(dns.exception.DNSException):
|
||||
"""Raised if an attempt is made to add a SIG/RRSIG whose covered type
|
||||
is not the same as that of the other rdatas in the rdataset."""
|
||||
pass
|
||||
|
||||
class IncompatibleTypes(dns.exception.DNSException):
|
||||
"""Raised if an attempt is made to add rdata of an incompatible type."""
|
||||
pass
|
||||
|
||||
class Rdataset(dns.set.Set):
|
||||
"""A DNS rdataset.
|
||||
|
||||
@ivar rdclass: The class of the rdataset
|
||||
@type rdclass: int
|
||||
@ivar rdtype: The type of the rdataset
|
||||
@type rdtype: int
|
||||
@ivar covers: The covered type. Usually this value is
|
||||
dns.rdatatype.NONE, but if the rdtype is dns.rdatatype.SIG or
|
||||
dns.rdatatype.RRSIG, then the covers value will be the rdata
|
||||
type the SIG/RRSIG covers. The library treats the SIG and RRSIG
|
||||
types as if they were a family of
|
||||
types, e.g. RRSIG(A), RRSIG(NS), RRSIG(SOA). This makes RRSIGs much
|
||||
easier to work with than if RRSIGs covering different rdata
|
||||
types were aggregated into a single RRSIG rdataset.
|
||||
@type covers: int
|
||||
@ivar ttl: The DNS TTL (Time To Live) value
|
||||
@type ttl: int
|
||||
"""
|
||||
|
||||
__slots__ = ['rdclass', 'rdtype', 'covers', 'ttl']
|
||||
|
||||
def __init__(self, rdclass, rdtype, covers=dns.rdatatype.NONE):
|
||||
"""Create a new rdataset of the specified class and type.
|
||||
|
||||
@see: the description of the class instance variables for the
|
||||
meaning of I{rdclass} and I{rdtype}"""
|
||||
|
||||
super(Rdataset, self).__init__()
|
||||
self.rdclass = rdclass
|
||||
self.rdtype = rdtype
|
||||
self.covers = covers
|
||||
self.ttl = 0
|
||||
|
||||
def _clone(self):
|
||||
obj = super(Rdataset, self)._clone()
|
||||
obj.rdclass = self.rdclass
|
||||
obj.rdtype = self.rdtype
|
||||
obj.covers = self.covers
|
||||
obj.ttl = self.ttl
|
||||
return obj
|
||||
|
||||
def update_ttl(self, ttl):
|
||||
"""Set the TTL of the rdataset to be the lesser of the set's current
|
||||
TTL or the specified TTL. If the set contains no rdatas, set the TTL
|
||||
to the specified TTL.
|
||||
@param ttl: The TTL
|
||||
@type ttl: int"""
|
||||
|
||||
if len(self) == 0:
|
||||
self.ttl = ttl
|
||||
elif ttl < self.ttl:
|
||||
self.ttl = ttl
|
||||
|
||||
def add(self, rd, ttl=None):
|
||||
"""Add the specified rdata to the rdataset.
|
||||
|
||||
If the optional I{ttl} parameter is supplied, then
|
||||
self.update_ttl(ttl) will be called prior to adding the rdata.
|
||||
|
||||
@param rd: The rdata
|
||||
@type rd: dns.rdata.Rdata object
|
||||
@param ttl: The TTL
|
||||
@type ttl: int"""
|
||||
|
||||
#
|
||||
# If we're adding a signature, do some special handling to
|
||||
# check that the signature covers the same type as the
|
||||
# other rdatas in this rdataset. If this is the first rdata
|
||||
# in the set, initialize the covers field.
|
||||
#
|
||||
if self.rdclass != rd.rdclass or self.rdtype != rd.rdtype:
|
||||
raise IncompatibleTypes
|
||||
if not ttl is None:
|
||||
self.update_ttl(ttl)
|
||||
if self.rdtype == dns.rdatatype.RRSIG or \
|
||||
self.rdtype == dns.rdatatype.SIG:
|
||||
covers = rd.covers()
|
||||
if len(self) == 0 and self.covers == dns.rdatatype.NONE:
|
||||
self.covers = covers
|
||||
elif self.covers != covers:
|
||||
raise DifferingCovers
|
||||
if dns.rdatatype.is_singleton(rd.rdtype) and len(self) > 0:
|
||||
self.clear()
|
||||
super(Rdataset, self).add(rd)
|
||||
|
||||
def union_update(self, other):
|
||||
self.update_ttl(other.ttl)
|
||||
super(Rdataset, self).union_update(other)
|
||||
|
||||
def intersection_update(self, other):
|
||||
self.update_ttl(other.ttl)
|
||||
super(Rdataset, self).intersection_update(other)
|
||||
|
||||
def update(self, other):
|
||||
"""Add all rdatas in other to self.
|
||||
|
||||
@param other: The rdataset from which to update
|
||||
@type other: dns.rdataset.Rdataset object"""
|
||||
|
||||
self.update_ttl(other.ttl)
|
||||
super(Rdataset, self).update(other)
|
||||
|
||||
def __repr__(self):
|
||||
if self.covers == 0:
|
||||
ctext = ''
|
||||
else:
|
||||
ctext = '(' + dns.rdatatype.to_text(self.covers) + ')'
|
||||
return '<DNS ' + dns.rdataclass.to_text(self.rdclass) + ' ' + \
|
||||
dns.rdatatype.to_text(self.rdtype) + ctext + ' rdataset>'
|
||||
|
||||
def __str__(self):
|
||||
return self.to_text()
|
||||
|
||||
def __eq__(self, other):
|
||||
"""Two rdatasets are equal if they have the same class, type, and
|
||||
covers, and contain the same rdata.
|
||||
@rtype: bool"""
|
||||
|
||||
if not isinstance(other, Rdataset):
|
||||
return False
|
||||
if self.rdclass != other.rdclass or \
|
||||
self.rdtype != other.rdtype or \
|
||||
self.covers != other.covers:
|
||||
return False
|
||||
return super(Rdataset, self).__eq__(other)
|
||||
|
||||
def __ne__(self, other):
|
||||
return not self.__eq__(other)
|
||||
|
||||
def to_text(self, name=None, origin=None, relativize=True,
|
||||
override_rdclass=None, **kw):
|
||||
"""Convert the rdataset into DNS master file format.
|
||||
|
||||
@see: L{dns.name.Name.choose_relativity} for more information
|
||||
on how I{origin} and I{relativize} determine the way names
|
||||
are emitted.
|
||||
|
||||
Any additional keyword arguments are passed on to the rdata
|
||||
to_text() method.
|
||||
|
||||
@param name: If name is not None, emit a RRs with I{name} as
|
||||
the owner name.
|
||||
@type name: dns.name.Name object
|
||||
@param origin: The origin for relative names, or None.
|
||||
@type origin: dns.name.Name object
|
||||
@param relativize: True if names should names be relativized
|
||||
@type relativize: bool"""
|
||||
if not name is None:
|
||||
name = name.choose_relativity(origin, relativize)
|
||||
ntext = str(name)
|
||||
pad = ' '
|
||||
else:
|
||||
ntext = ''
|
||||
pad = ''
|
||||
s = StringIO.StringIO()
|
||||
if not override_rdclass is None:
|
||||
rdclass = override_rdclass
|
||||
else:
|
||||
rdclass = self.rdclass
|
||||
if len(self) == 0:
|
||||
#
|
||||
# Empty rdatasets are used for the question section, and in
|
||||
# some dynamic updates, so we don't need to print out the TTL
|
||||
# (which is meaningless anyway).
|
||||
#
|
||||
print >> s, '%s%s%s %s' % (ntext, pad,
|
||||
dns.rdataclass.to_text(rdclass),
|
||||
dns.rdatatype.to_text(self.rdtype))
|
||||
else:
|
||||
for rd in self:
|
||||
print >> s, '%s%s%d %s %s %s' % \
|
||||
(ntext, pad, self.ttl, dns.rdataclass.to_text(rdclass),
|
||||
dns.rdatatype.to_text(self.rdtype),
|
||||
rd.to_text(origin=origin, relativize=relativize, **kw))
|
||||
#
|
||||
# We strip off the final \n for the caller's convenience in printing
|
||||
#
|
||||
return s.getvalue()[:-1]
|
||||
|
||||
def to_wire(self, name, file, compress=None, origin=None,
|
||||
override_rdclass=None, want_shuffle=True):
|
||||
"""Convert the rdataset to wire format.
|
||||
|
||||
@param name: The owner name of the RRset that will be emitted
|
||||
@type name: dns.name.Name object
|
||||
@param file: The file to which the wire format data will be appended
|
||||
@type file: file
|
||||
@param compress: The compression table to use; the default is None.
|
||||
@type compress: dict
|
||||
@param origin: The origin to be appended to any relative names when
|
||||
they are emitted. The default is None.
|
||||
@returns: the number of records emitted
|
||||
@rtype: int
|
||||
"""
|
||||
|
||||
if not override_rdclass is None:
|
||||
rdclass = override_rdclass
|
||||
want_shuffle = False
|
||||
else:
|
||||
rdclass = self.rdclass
|
||||
file.seek(0, 2)
|
||||
if len(self) == 0:
|
||||
name.to_wire(file, compress, origin)
|
||||
stuff = struct.pack("!HHIH", self.rdtype, rdclass, 0, 0)
|
||||
file.write(stuff)
|
||||
return 1
|
||||
else:
|
||||
if want_shuffle:
|
||||
l = list(self)
|
||||
random.shuffle(l)
|
||||
else:
|
||||
l = self
|
||||
for rd in l:
|
||||
name.to_wire(file, compress, origin)
|
||||
stuff = struct.pack("!HHIH", self.rdtype, rdclass,
|
||||
self.ttl, 0)
|
||||
file.write(stuff)
|
||||
start = file.tell()
|
||||
rd.to_wire(file, compress, origin)
|
||||
end = file.tell()
|
||||
assert end - start < 65536
|
||||
file.seek(start - 2)
|
||||
stuff = struct.pack("!H", end - start)
|
||||
file.write(stuff)
|
||||
file.seek(0, 2)
|
||||
return len(self)
|
||||
|
||||
def match(self, rdclass, rdtype, covers):
|
||||
"""Returns True if this rdataset matches the specified class, type,
|
||||
and covers"""
|
||||
if self.rdclass == rdclass and \
|
||||
self.rdtype == rdtype and \
|
||||
self.covers == covers:
|
||||
return True
|
||||
return False
|
||||
|
||||
def from_text_list(rdclass, rdtype, ttl, text_rdatas):
|
||||
"""Create an rdataset with the specified class, type, and TTL, and with
|
||||
the specified list of rdatas in text format.
|
||||
|
||||
@rtype: dns.rdataset.Rdataset object
|
||||
"""
|
||||
|
||||
if isinstance(rdclass, str):
|
||||
rdclass = dns.rdataclass.from_text(rdclass)
|
||||
if isinstance(rdtype, str):
|
||||
rdtype = dns.rdatatype.from_text(rdtype)
|
||||
r = Rdataset(rdclass, rdtype)
|
||||
r.update_ttl(ttl)
|
||||
for t in text_rdatas:
|
||||
rd = dns.rdata.from_text(r.rdclass, r.rdtype, t)
|
||||
r.add(rd)
|
||||
return r
|
||||
|
||||
def from_text(rdclass, rdtype, ttl, *text_rdatas):
|
||||
"""Create an rdataset with the specified class, type, and TTL, and with
|
||||
the specified rdatas in text format.
|
||||
|
||||
@rtype: dns.rdataset.Rdataset object
|
||||
"""
|
||||
|
||||
return from_text_list(rdclass, rdtype, ttl, text_rdatas)
|
||||
|
||||
def from_rdata_list(ttl, rdatas):
|
||||
"""Create an rdataset with the specified TTL, and with
|
||||
the specified list of rdata objects.
|
||||
|
||||
@rtype: dns.rdataset.Rdataset object
|
||||
"""
|
||||
|
||||
if len(rdatas) == 0:
|
||||
raise ValueError("rdata list must not be empty")
|
||||
r = None
|
||||
for rd in rdatas:
|
||||
if r is None:
|
||||
r = Rdataset(rd.rdclass, rd.rdtype)
|
||||
r.update_ttl(ttl)
|
||||
first_time = False
|
||||
r.add(rd)
|
||||
return r
|
||||
|
||||
def from_rdata(ttl, *rdatas):
|
||||
"""Create an rdataset with the specified TTL, and with
|
||||
the specified rdata objects.
|
||||
|
||||
@rtype: dns.rdataset.Rdataset object
|
||||
"""
|
||||
|
||||
return from_rdata_list(ttl, rdatas)
|
@ -1,232 +0,0 @@
|
||||
# Copyright (C) 2001-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""DNS Rdata Types.
|
||||
|
||||
@var _by_text: The rdata type textual name to value mapping
|
||||
@type _by_text: dict
|
||||
@var _by_value: The rdata type value to textual name mapping
|
||||
@type _by_value: dict
|
||||
@var _metatypes: If an rdatatype is a metatype, there will be a mapping
|
||||
whose key is the rdatatype value and whose value is True in this dictionary.
|
||||
@type _metatypes: dict
|
||||
@var _singletons: If an rdatatype is a singleton, there will be a mapping
|
||||
whose key is the rdatatype value and whose value is True in this dictionary.
|
||||
@type _singletons: dict"""
|
||||
|
||||
import re
|
||||
|
||||
import dns.exception
|
||||
|
||||
NONE = 0
|
||||
A = 1
|
||||
NS = 2
|
||||
MD = 3
|
||||
MF = 4
|
||||
CNAME = 5
|
||||
SOA = 6
|
||||
MB = 7
|
||||
MG = 8
|
||||
MR = 9
|
||||
NULL = 10
|
||||
WKS = 11
|
||||
PTR = 12
|
||||
HINFO = 13
|
||||
MINFO = 14
|
||||
MX = 15
|
||||
TXT = 16
|
||||
RP = 17
|
||||
AFSDB = 18
|
||||
X25 = 19
|
||||
ISDN = 20
|
||||
RT = 21
|
||||
NSAP = 22
|
||||
NSAP_PTR = 23
|
||||
SIG = 24
|
||||
KEY = 25
|
||||
PX = 26
|
||||
GPOS = 27
|
||||
AAAA = 28
|
||||
LOC = 29
|
||||
NXT = 30
|
||||
SRV = 33
|
||||
NAPTR = 35
|
||||
KX = 36
|
||||
CERT = 37
|
||||
A6 = 38
|
||||
DNAME = 39
|
||||
OPT = 41
|
||||
APL = 42
|
||||
DS = 43
|
||||
SSHFP = 44
|
||||
IPSECKEY = 45
|
||||
RRSIG = 46
|
||||
NSEC = 47
|
||||
DNSKEY = 48
|
||||
DHCID = 49
|
||||
NSEC3 = 50
|
||||
NSEC3PARAM = 51
|
||||
HIP = 55
|
||||
SPF = 99
|
||||
UNSPEC = 103
|
||||
TKEY = 249
|
||||
TSIG = 250
|
||||
IXFR = 251
|
||||
AXFR = 252
|
||||
MAILB = 253
|
||||
MAILA = 254
|
||||
ANY = 255
|
||||
TA = 32768
|
||||
DLV = 32769
|
||||
|
||||
_by_text = {
|
||||
'NONE' : NONE,
|
||||
'A' : A,
|
||||
'NS' : NS,
|
||||
'MD' : MD,
|
||||
'MF' : MF,
|
||||
'CNAME' : CNAME,
|
||||
'SOA' : SOA,
|
||||
'MB' : MB,
|
||||
'MG' : MG,
|
||||
'MR' : MR,
|
||||
'NULL' : NULL,
|
||||
'WKS' : WKS,
|
||||
'PTR' : PTR,
|
||||
'HINFO' : HINFO,
|
||||
'MINFO' : MINFO,
|
||||
'MX' : MX,
|
||||
'TXT' : TXT,
|
||||
'RP' : RP,
|
||||
'AFSDB' : AFSDB,
|
||||
'X25' : X25,
|
||||
'ISDN' : ISDN,
|
||||
'RT' : RT,
|
||||
'NSAP' : NSAP,
|
||||
'NSAP-PTR' : NSAP_PTR,
|
||||
'SIG' : SIG,
|
||||
'KEY' : KEY,
|
||||
'PX' : PX,
|
||||
'GPOS' : GPOS,
|
||||
'AAAA' : AAAA,
|
||||
'LOC' : LOC,
|
||||
'NXT' : NXT,
|
||||
'SRV' : SRV,
|
||||
'NAPTR' : NAPTR,
|
||||
'KX' : KX,
|
||||
'CERT' : CERT,
|
||||
'A6' : A6,
|
||||
'DNAME' : DNAME,
|
||||
'OPT' : OPT,
|
||||
'APL' : APL,
|
||||
'DS' : DS,
|
||||
'SSHFP' : SSHFP,
|
||||
'IPSECKEY' : IPSECKEY,
|
||||
'RRSIG' : RRSIG,
|
||||
'NSEC' : NSEC,
|
||||
'DNSKEY' : DNSKEY,
|
||||
'DHCID' : DHCID,
|
||||
'NSEC3' : NSEC3,
|
||||
'NSEC3PARAM' : NSEC3PARAM,
|
||||
'HIP' : HIP,
|
||||
'SPF' : SPF,
|
||||
'UNSPEC' : UNSPEC,
|
||||
'TKEY' : TKEY,
|
||||
'TSIG' : TSIG,
|
||||
'IXFR' : IXFR,
|
||||
'AXFR' : AXFR,
|
||||
'MAILB' : MAILB,
|
||||
'MAILA' : MAILA,
|
||||
'ANY' : ANY,
|
||||
'TA' : TA,
|
||||
'DLV' : DLV,
|
||||
}
|
||||
|
||||
# We construct the inverse mapping programmatically to ensure that we
|
||||
# cannot make any mistakes (e.g. omissions, cut-and-paste errors) that
|
||||
# would cause the mapping not to be true inverse.
|
||||
|
||||
_by_value = dict([(y, x) for x, y in _by_text.iteritems()])
|
||||
|
||||
|
||||
_metatypes = {
|
||||
OPT : True
|
||||
}
|
||||
|
||||
_singletons = {
|
||||
SOA : True,
|
||||
NXT : True,
|
||||
DNAME : True,
|
||||
NSEC : True,
|
||||
# CNAME is technically a singleton, but we allow multiple CNAMEs.
|
||||
}
|
||||
|
||||
_unknown_type_pattern = re.compile('TYPE([0-9]+)$', re.I);
|
||||
|
||||
class UnknownRdatatype(dns.exception.DNSException):
|
||||
"""Raised if a type is unknown."""
|
||||
pass
|
||||
|
||||
def from_text(text):
|
||||
"""Convert text into a DNS rdata type value.
|
||||
@param text: the text
|
||||
@type text: string
|
||||
@raises dns.rdatatype.UnknownRdatatype: the type is unknown
|
||||
@raises ValueError: the rdata type value is not >= 0 and <= 65535
|
||||
@rtype: int"""
|
||||
|
||||
value = _by_text.get(text.upper())
|
||||
if value is None:
|
||||
match = _unknown_type_pattern.match(text)
|
||||
if match == None:
|
||||
raise UnknownRdatatype
|
||||
value = int(match.group(1))
|
||||
if value < 0 or value > 65535:
|
||||
raise ValueError("type must be between >= 0 and <= 65535")
|
||||
return value
|
||||
|
||||
def to_text(value):
|
||||
"""Convert a DNS rdata type to text.
|
||||
@param value: the rdata type value
|
||||
@type value: int
|
||||
@raises ValueError: the rdata type value is not >= 0 and <= 65535
|
||||
@rtype: string"""
|
||||
|
||||
if value < 0 or value > 65535:
|
||||
raise ValueError("type must be between >= 0 and <= 65535")
|
||||
text = _by_value.get(value)
|
||||
if text is None:
|
||||
text = 'TYPE' + `value`
|
||||
return text
|
||||
|
||||
def is_metatype(rdtype):
|
||||
"""True if the type is a metatype.
|
||||
@param rdtype: the type
|
||||
@type rdtype: int
|
||||
@rtype: bool"""
|
||||
|
||||
if rdtype >= TKEY and rdtype <= ANY or _metatypes.has_key(rdtype):
|
||||
return True
|
||||
return False
|
||||
|
||||
def is_singleton(rdtype):
|
||||
"""True if the type is a singleton.
|
||||
@param rdtype: the type
|
||||
@type rdtype: int
|
||||
@rtype: bool"""
|
||||
|
||||
if _singletons.has_key(rdtype):
|
||||
return True
|
||||
return False
|
@ -1,51 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.rdtypes.mxbase
|
||||
|
||||
class AFSDB(dns.rdtypes.mxbase.UncompressedDowncasingMX):
|
||||
"""AFSDB record
|
||||
|
||||
@ivar subtype: the subtype value
|
||||
@type subtype: int
|
||||
@ivar hostname: the hostname name
|
||||
@type hostname: dns.name.Name object"""
|
||||
|
||||
# Use the property mechanism to make "subtype" an alias for the
|
||||
# "preference" attribute, and "hostname" an alias for the "exchange"
|
||||
# attribute.
|
||||
#
|
||||
# This lets us inherit the UncompressedMX implementation but lets
|
||||
# the caller use appropriate attribute names for the rdata type.
|
||||
#
|
||||
# We probably lose some performance vs. a cut-and-paste
|
||||
# implementation, but this way we don't copy code, and that's
|
||||
# good.
|
||||
|
||||
def get_subtype(self):
|
||||
return self.preference
|
||||
|
||||
def set_subtype(self, subtype):
|
||||
self.preference = subtype
|
||||
|
||||
subtype = property(get_subtype, set_subtype)
|
||||
|
||||
def get_hostname(self):
|
||||
return self.exchange
|
||||
|
||||
def set_hostname(self, hostname):
|
||||
self.exchange = hostname
|
||||
|
||||
hostname = property(get_hostname, set_hostname)
|
@ -1,131 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import cStringIO
|
||||
import struct
|
||||
|
||||
import dns.exception
|
||||
import dns.dnssec
|
||||
import dns.rdata
|
||||
import dns.tokenizer
|
||||
|
||||
_ctype_by_value = {
|
||||
1 : 'PKIX',
|
||||
2 : 'SPKI',
|
||||
3 : 'PGP',
|
||||
253 : 'URI',
|
||||
254 : 'OID',
|
||||
}
|
||||
|
||||
_ctype_by_name = {
|
||||
'PKIX' : 1,
|
||||
'SPKI' : 2,
|
||||
'PGP' : 3,
|
||||
'URI' : 253,
|
||||
'OID' : 254,
|
||||
}
|
||||
|
||||
def _ctype_from_text(what):
|
||||
v = _ctype_by_name.get(what)
|
||||
if not v is None:
|
||||
return v
|
||||
return int(what)
|
||||
|
||||
def _ctype_to_text(what):
|
||||
v = _ctype_by_value.get(what)
|
||||
if not v is None:
|
||||
return v
|
||||
return str(what)
|
||||
|
||||
class CERT(dns.rdata.Rdata):
|
||||
"""CERT record
|
||||
|
||||
@ivar certificate_type: certificate type
|
||||
@type certificate_type: int
|
||||
@ivar key_tag: key tag
|
||||
@type key_tag: int
|
||||
@ivar algorithm: algorithm
|
||||
@type algorithm: int
|
||||
@ivar certificate: the certificate or CRL
|
||||
@type certificate: string
|
||||
@see: RFC 2538"""
|
||||
|
||||
__slots__ = ['certificate_type', 'key_tag', 'algorithm', 'certificate']
|
||||
|
||||
def __init__(self, rdclass, rdtype, certificate_type, key_tag, algorithm,
|
||||
certificate):
|
||||
super(CERT, self).__init__(rdclass, rdtype)
|
||||
self.certificate_type = certificate_type
|
||||
self.key_tag = key_tag
|
||||
self.algorithm = algorithm
|
||||
self.certificate = certificate
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
certificate_type = _ctype_to_text(self.certificate_type)
|
||||
return "%s %d %s %s" % (certificate_type, self.key_tag,
|
||||
dns.dnssec.algorithm_to_text(self.algorithm),
|
||||
dns.rdata._base64ify(self.certificate))
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
certificate_type = _ctype_from_text(tok.get_string())
|
||||
key_tag = tok.get_uint16()
|
||||
algorithm = dns.dnssec.algorithm_from_text(tok.get_string())
|
||||
if algorithm < 0 or algorithm > 255:
|
||||
raise dns.exception.SyntaxError("bad algorithm type")
|
||||
chunks = []
|
||||
while 1:
|
||||
t = tok.get().unescape()
|
||||
if t.is_eol_or_eof():
|
||||
break
|
||||
if not t.is_identifier():
|
||||
raise dns.exception.SyntaxError
|
||||
chunks.append(t.value)
|
||||
b64 = ''.join(chunks)
|
||||
certificate = b64.decode('base64_codec')
|
||||
return cls(rdclass, rdtype, certificate_type, key_tag,
|
||||
algorithm, certificate)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
prefix = struct.pack("!HHB", self.certificate_type, self.key_tag,
|
||||
self.algorithm)
|
||||
file.write(prefix)
|
||||
file.write(self.certificate)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
prefix = wire[current : current + 5]
|
||||
current += 5
|
||||
rdlen -= 5
|
||||
if rdlen < 0:
|
||||
raise dns.exception.FormError
|
||||
(certificate_type, key_tag, algorithm) = struct.unpack("!HHB", prefix)
|
||||
certificate = wire[current : current + rdlen]
|
||||
return cls(rdclass, rdtype, certificate_type, key_tag, algorithm,
|
||||
certificate)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
f = cStringIO.StringIO()
|
||||
self.to_wire(f)
|
||||
wire1 = f.getvalue()
|
||||
f.seek(0)
|
||||
f.truncate()
|
||||
other.to_wire(f)
|
||||
wire2 = f.getvalue()
|
||||
f.close()
|
||||
|
||||
return cmp(wire1, wire2)
|
@ -1,24 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.rdtypes.nsbase
|
||||
|
||||
class CNAME(dns.rdtypes.nsbase.NSBase):
|
||||
"""CNAME record
|
||||
|
||||
Note: although CNAME is officially a singleton type, dnspython allows
|
||||
non-singleton CNAME rdatasets because such sets have been commonly
|
||||
used by BIND and other nameservers for load balancing."""
|
||||
pass
|
@ -1,20 +0,0 @@
|
||||
# Copyright (C) 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.rdtypes.dsbase
|
||||
|
||||
class DLV(dns.rdtypes.dsbase.DSBase):
|
||||
"""DLV record"""
|
||||
pass
|
@ -1,21 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.rdtypes.nsbase
|
||||
|
||||
class DNAME(dns.rdtypes.nsbase.UncompressedNS):
|
||||
"""DNAME record"""
|
||||
def to_digestable(self, origin = None):
|
||||
return self.target.to_digestable(origin)
|
@ -1,25 +0,0 @@
|
||||
# Copyright (C) 2004-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.rdtypes.keybase
|
||||
|
||||
# flag constants
|
||||
SEP = 0x0001
|
||||
REVOKE = 0x0080
|
||||
ZONE = 0x0100
|
||||
|
||||
class DNSKEY(dns.rdtypes.keybase.KEYBase):
|
||||
"""DNSKEY record"""
|
||||
pass
|
@ -1,20 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.rdtypes.dsbase
|
||||
|
||||
class DS(dns.rdtypes.dsbase.DSBase):
|
||||
"""DS record"""
|
||||
pass
|
@ -1,156 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.exception
|
||||
import dns.rdata
|
||||
import dns.tokenizer
|
||||
|
||||
def _validate_float_string(what):
|
||||
if what[0] == '-' or what[0] == '+':
|
||||
what = what[1:]
|
||||
if what.isdigit():
|
||||
return
|
||||
(left, right) = what.split('.')
|
||||
if left == '' and right == '':
|
||||
raise dns.exception.FormError
|
||||
if not left == '' and not left.isdigit():
|
||||
raise dns.exception.FormError
|
||||
if not right == '' and not right.isdigit():
|
||||
raise dns.exception.FormError
|
||||
|
||||
class GPOS(dns.rdata.Rdata):
|
||||
"""GPOS record
|
||||
|
||||
@ivar latitude: latitude
|
||||
@type latitude: string
|
||||
@ivar longitude: longitude
|
||||
@type longitude: string
|
||||
@ivar altitude: altitude
|
||||
@type altitude: string
|
||||
@see: RFC 1712"""
|
||||
|
||||
__slots__ = ['latitude', 'longitude', 'altitude']
|
||||
|
||||
def __init__(self, rdclass, rdtype, latitude, longitude, altitude):
|
||||
super(GPOS, self).__init__(rdclass, rdtype)
|
||||
if isinstance(latitude, float) or \
|
||||
isinstance(latitude, int) or \
|
||||
isinstance(latitude, long):
|
||||
latitude = str(latitude)
|
||||
if isinstance(longitude, float) or \
|
||||
isinstance(longitude, int) or \
|
||||
isinstance(longitude, long):
|
||||
longitude = str(longitude)
|
||||
if isinstance(altitude, float) or \
|
||||
isinstance(altitude, int) or \
|
||||
isinstance(altitude, long):
|
||||
altitude = str(altitude)
|
||||
_validate_float_string(latitude)
|
||||
_validate_float_string(longitude)
|
||||
_validate_float_string(altitude)
|
||||
self.latitude = latitude
|
||||
self.longitude = longitude
|
||||
self.altitude = altitude
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
return '%s %s %s' % (self.latitude, self.longitude, self.altitude)
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
latitude = tok.get_string()
|
||||
longitude = tok.get_string()
|
||||
altitude = tok.get_string()
|
||||
tok.get_eol()
|
||||
return cls(rdclass, rdtype, latitude, longitude, altitude)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
l = len(self.latitude)
|
||||
assert l < 256
|
||||
byte = chr(l)
|
||||
file.write(byte)
|
||||
file.write(self.latitude)
|
||||
l = len(self.longitude)
|
||||
assert l < 256
|
||||
byte = chr(l)
|
||||
file.write(byte)
|
||||
file.write(self.longitude)
|
||||
l = len(self.altitude)
|
||||
assert l < 256
|
||||
byte = chr(l)
|
||||
file.write(byte)
|
||||
file.write(self.altitude)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
l = ord(wire[current])
|
||||
current += 1
|
||||
rdlen -= 1
|
||||
if l > rdlen:
|
||||
raise dns.exception.FormError
|
||||
latitude = wire[current : current + l]
|
||||
current += l
|
||||
rdlen -= l
|
||||
l = ord(wire[current])
|
||||
current += 1
|
||||
rdlen -= 1
|
||||
if l > rdlen:
|
||||
raise dns.exception.FormError
|
||||
longitude = wire[current : current + l]
|
||||
current += l
|
||||
rdlen -= l
|
||||
l = ord(wire[current])
|
||||
current += 1
|
||||
rdlen -= 1
|
||||
if l != rdlen:
|
||||
raise dns.exception.FormError
|
||||
altitude = wire[current : current + l]
|
||||
return cls(rdclass, rdtype, latitude, longitude, altitude)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
v = cmp(self.latitude, other.latitude)
|
||||
if v == 0:
|
||||
v = cmp(self.longitude, other.longitude)
|
||||
if v == 0:
|
||||
v = cmp(self.altitude, other.altitude)
|
||||
return v
|
||||
|
||||
def _get_float_latitude(self):
|
||||
return float(self.latitude)
|
||||
|
||||
def _set_float_latitude(self, value):
|
||||
self.latitude = str(value)
|
||||
|
||||
float_latitude = property(_get_float_latitude, _set_float_latitude,
|
||||
doc="latitude as a floating point value")
|
||||
|
||||
def _get_float_longitude(self):
|
||||
return float(self.longitude)
|
||||
|
||||
def _set_float_longitude(self, value):
|
||||
self.longitude = str(value)
|
||||
|
||||
float_longitude = property(_get_float_longitude, _set_float_longitude,
|
||||
doc="longitude as a floating point value")
|
||||
|
||||
def _get_float_altitude(self):
|
||||
return float(self.altitude)
|
||||
|
||||
def _set_float_altitude(self, value):
|
||||
self.altitude = str(value)
|
||||
|
||||
float_altitude = property(_get_float_altitude, _set_float_altitude,
|
||||
doc="altitude as a floating point value")
|
@ -1,83 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.exception
|
||||
import dns.rdata
|
||||
import dns.tokenizer
|
||||
|
||||
class HINFO(dns.rdata.Rdata):
|
||||
"""HINFO record
|
||||
|
||||
@ivar cpu: the CPU type
|
||||
@type cpu: string
|
||||
@ivar os: the OS type
|
||||
@type os: string
|
||||
@see: RFC 1035"""
|
||||
|
||||
__slots__ = ['cpu', 'os']
|
||||
|
||||
def __init__(self, rdclass, rdtype, cpu, os):
|
||||
super(HINFO, self).__init__(rdclass, rdtype)
|
||||
self.cpu = cpu
|
||||
self.os = os
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
return '"%s" "%s"' % (dns.rdata._escapify(self.cpu),
|
||||
dns.rdata._escapify(self.os))
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
cpu = tok.get_string()
|
||||
os = tok.get_string()
|
||||
tok.get_eol()
|
||||
return cls(rdclass, rdtype, cpu, os)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
l = len(self.cpu)
|
||||
assert l < 256
|
||||
byte = chr(l)
|
||||
file.write(byte)
|
||||
file.write(self.cpu)
|
||||
l = len(self.os)
|
||||
assert l < 256
|
||||
byte = chr(l)
|
||||
file.write(byte)
|
||||
file.write(self.os)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
l = ord(wire[current])
|
||||
current += 1
|
||||
rdlen -= 1
|
||||
if l > rdlen:
|
||||
raise dns.exception.FormError
|
||||
cpu = wire[current : current + l]
|
||||
current += l
|
||||
rdlen -= l
|
||||
l = ord(wire[current])
|
||||
current += 1
|
||||
rdlen -= 1
|
||||
if l != rdlen:
|
||||
raise dns.exception.FormError
|
||||
os = wire[current : current + l]
|
||||
return cls(rdclass, rdtype, cpu, os)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
v = cmp(self.cpu, other.cpu)
|
||||
if v == 0:
|
||||
v = cmp(self.os, other.os)
|
||||
return v
|
@ -1,140 +0,0 @@
|
||||
# Copyright (C) 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import cStringIO
|
||||
import string
|
||||
import struct
|
||||
|
||||
import dns.exception
|
||||
import dns.rdata
|
||||
import dns.rdatatype
|
||||
|
||||
class HIP(dns.rdata.Rdata):
|
||||
"""HIP record
|
||||
|
||||
@ivar hit: the host identity tag
|
||||
@type hit: string
|
||||
@ivar algorithm: the public key cryptographic algorithm
|
||||
@type algorithm: int
|
||||
@ivar key: the public key
|
||||
@type key: string
|
||||
@ivar servers: the rendezvous servers
|
||||
@type servers: list of dns.name.Name objects
|
||||
@see: RFC 5205"""
|
||||
|
||||
__slots__ = ['hit', 'algorithm', 'key', 'servers']
|
||||
|
||||
def __init__(self, rdclass, rdtype, hit, algorithm, key, servers):
|
||||
super(HIP, self).__init__(rdclass, rdtype)
|
||||
self.hit = hit
|
||||
self.algorithm = algorithm
|
||||
self.key = key
|
||||
self.servers = servers
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
hit = self.hit.encode('hex-codec')
|
||||
key = self.key.encode('base64-codec').replace('\n', '')
|
||||
text = ''
|
||||
servers = []
|
||||
for server in self.servers:
|
||||
servers.append(str(server.choose_relativity(origin, relativize)))
|
||||
if len(servers) > 0:
|
||||
text += (' ' + ' '.join(servers))
|
||||
return '%u %s %s%s' % (self.algorithm, hit, key, text)
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
algorithm = tok.get_uint8()
|
||||
hit = tok.get_string().decode('hex-codec')
|
||||
if len(hit) > 255:
|
||||
raise dns.exception.SyntaxError("HIT too long")
|
||||
key = tok.get_string().decode('base64-codec')
|
||||
servers = []
|
||||
while 1:
|
||||
token = tok.get()
|
||||
if token.is_eol_or_eof():
|
||||
break
|
||||
server = dns.name.from_text(token.value, origin)
|
||||
server.choose_relativity(origin, relativize)
|
||||
servers.append(server)
|
||||
return cls(rdclass, rdtype, hit, algorithm, key, servers)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
lh = len(self.hit)
|
||||
lk = len(self.key)
|
||||
file.write(struct.pack("!BBH", lh, self.algorithm, lk))
|
||||
file.write(self.hit)
|
||||
file.write(self.key)
|
||||
for server in self.servers:
|
||||
server.to_wire(file, None, origin)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
(lh, algorithm, lk) = struct.unpack('!BBH',
|
||||
wire[current : current + 4])
|
||||
current += 4
|
||||
rdlen -= 4
|
||||
hit = wire[current : current + lh]
|
||||
current += lh
|
||||
rdlen -= lh
|
||||
key = wire[current : current + lk]
|
||||
current += lk
|
||||
rdlen -= lk
|
||||
servers = []
|
||||
while rdlen > 0:
|
||||
(server, cused) = dns.name.from_wire(wire[: current + rdlen],
|
||||
current)
|
||||
current += cused
|
||||
rdlen -= cused
|
||||
if not origin is None:
|
||||
server = server.relativize(origin)
|
||||
servers.append(server)
|
||||
return cls(rdclass, rdtype, hit, algorithm, key, servers)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def choose_relativity(self, origin = None, relativize = True):
|
||||
servers = []
|
||||
for server in self.servers:
|
||||
server = server.choose_relativity(origin, relativize)
|
||||
servers.append(server)
|
||||
self.servers = servers
|
||||
|
||||
def _cmp(self, other):
|
||||
b1 = cStringIO.StringIO()
|
||||
lh = len(self.hit)
|
||||
lk = len(self.key)
|
||||
b1.write(struct.pack("!BBH", lh, self.algorithm, lk))
|
||||
b1.write(self.hit)
|
||||
b1.write(self.key)
|
||||
b2 = cStringIO.StringIO()
|
||||
lh = len(other.hit)
|
||||
lk = len(other.key)
|
||||
b2.write(struct.pack("!BBH", lh, other.algorithm, lk))
|
||||
b2.write(other.hit)
|
||||
b2.write(other.key)
|
||||
v = cmp(b1.getvalue(), b2.getvalue())
|
||||
if v != 0:
|
||||
return v
|
||||
ls = len(self.servers)
|
||||
lo = len(other.servers)
|
||||
count = min(ls, lo)
|
||||
i = 0
|
||||
while i < count:
|
||||
v = cmp(self.servers[i], other.servers[i])
|
||||
if v != 0:
|
||||
return v
|
||||
i += 1
|
||||
return ls - lo
|
@ -1,96 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.exception
|
||||
import dns.rdata
|
||||
import dns.tokenizer
|
||||
|
||||
class ISDN(dns.rdata.Rdata):
|
||||
"""ISDN record
|
||||
|
||||
@ivar address: the ISDN address
|
||||
@type address: string
|
||||
@ivar subaddress: the ISDN subaddress (or '' if not present)
|
||||
@type subaddress: string
|
||||
@see: RFC 1183"""
|
||||
|
||||
__slots__ = ['address', 'subaddress']
|
||||
|
||||
def __init__(self, rdclass, rdtype, address, subaddress):
|
||||
super(ISDN, self).__init__(rdclass, rdtype)
|
||||
self.address = address
|
||||
self.subaddress = subaddress
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
if self.subaddress:
|
||||
return '"%s" "%s"' % (dns.rdata._escapify(self.address),
|
||||
dns.rdata._escapify(self.subaddress))
|
||||
else:
|
||||
return '"%s"' % dns.rdata._escapify(self.address)
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
address = tok.get_string()
|
||||
t = tok.get()
|
||||
if not t.is_eol_or_eof():
|
||||
tok.unget(t)
|
||||
subaddress = tok.get_string()
|
||||
else:
|
||||
tok.unget(t)
|
||||
subaddress = ''
|
||||
tok.get_eol()
|
||||
return cls(rdclass, rdtype, address, subaddress)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
l = len(self.address)
|
||||
assert l < 256
|
||||
byte = chr(l)
|
||||
file.write(byte)
|
||||
file.write(self.address)
|
||||
l = len(self.subaddress)
|
||||
if l > 0:
|
||||
assert l < 256
|
||||
byte = chr(l)
|
||||
file.write(byte)
|
||||
file.write(self.subaddress)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
l = ord(wire[current])
|
||||
current += 1
|
||||
rdlen -= 1
|
||||
if l > rdlen:
|
||||
raise dns.exception.FormError
|
||||
address = wire[current : current + l]
|
||||
current += l
|
||||
rdlen -= l
|
||||
if rdlen > 0:
|
||||
l = ord(wire[current])
|
||||
current += 1
|
||||
rdlen -= 1
|
||||
if l != rdlen:
|
||||
raise dns.exception.FormError
|
||||
subaddress = wire[current : current + l]
|
||||
else:
|
||||
subaddress = ''
|
||||
return cls(rdclass, rdtype, address, subaddress)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
v = cmp(self.address, other.address)
|
||||
if v == 0:
|
||||
v = cmp(self.subaddress, other.subaddress)
|
||||
return v
|
@ -1,20 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.rdtypes.keybase
|
||||
|
||||
class KEY(dns.rdtypes.keybase.KEYBase):
|
||||
"""KEY record"""
|
||||
pass
|
@ -1,334 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import cStringIO
|
||||
import struct
|
||||
|
||||
import dns.exception
|
||||
import dns.rdata
|
||||
|
||||
_pows = (1L, 10L, 100L, 1000L, 10000L, 100000L, 1000000L, 10000000L,
|
||||
100000000L, 1000000000L, 10000000000L)
|
||||
|
||||
def _exponent_of(what, desc):
|
||||
exp = None
|
||||
for i in xrange(len(_pows)):
|
||||
if what // _pows[i] == 0L:
|
||||
exp = i - 1
|
||||
break
|
||||
if exp is None or exp < 0:
|
||||
raise dns.exception.SyntaxError("%s value out of bounds" % desc)
|
||||
return exp
|
||||
|
||||
def _float_to_tuple(what):
|
||||
if what < 0:
|
||||
sign = -1
|
||||
what *= -1
|
||||
else:
|
||||
sign = 1
|
||||
what = long(round(what * 3600000))
|
||||
degrees = int(what // 3600000)
|
||||
what -= degrees * 3600000
|
||||
minutes = int(what // 60000)
|
||||
what -= minutes * 60000
|
||||
seconds = int(what // 1000)
|
||||
what -= int(seconds * 1000)
|
||||
what = int(what)
|
||||
return (degrees * sign, minutes, seconds, what)
|
||||
|
||||
def _tuple_to_float(what):
|
||||
if what[0] < 0:
|
||||
sign = -1
|
||||
value = float(what[0]) * -1
|
||||
else:
|
||||
sign = 1
|
||||
value = float(what[0])
|
||||
value += float(what[1]) / 60.0
|
||||
value += float(what[2]) / 3600.0
|
||||
value += float(what[3]) / 3600000.0
|
||||
return sign * value
|
||||
|
||||
def _encode_size(what, desc):
|
||||
what = long(what);
|
||||
exponent = _exponent_of(what, desc) & 0xF
|
||||
base = what // pow(10, exponent) & 0xF
|
||||
return base * 16 + exponent
|
||||
|
||||
def _decode_size(what, desc):
|
||||
exponent = what & 0x0F
|
||||
if exponent > 9:
|
||||
raise dns.exception.SyntaxError("bad %s exponent" % desc)
|
||||
base = (what & 0xF0) >> 4
|
||||
if base > 9:
|
||||
raise dns.exception.SyntaxError("bad %s base" % desc)
|
||||
return long(base) * pow(10, exponent)
|
||||
|
||||
class LOC(dns.rdata.Rdata):
|
||||
"""LOC record
|
||||
|
||||
@ivar latitude: latitude
|
||||
@type latitude: (int, int, int, int) tuple specifying the degrees, minutes,
|
||||
seconds, and milliseconds of the coordinate.
|
||||
@ivar longitude: longitude
|
||||
@type longitude: (int, int, int, int) tuple specifying the degrees,
|
||||
minutes, seconds, and milliseconds of the coordinate.
|
||||
@ivar altitude: altitude
|
||||
@type altitude: float
|
||||
@ivar size: size of the sphere
|
||||
@type size: float
|
||||
@ivar horizontal_precision: horizontal precision
|
||||
@type horizontal_precision: float
|
||||
@ivar vertical_precision: vertical precision
|
||||
@type vertical_precision: float
|
||||
@see: RFC 1876"""
|
||||
|
||||
__slots__ = ['latitude', 'longitude', 'altitude', 'size',
|
||||
'horizontal_precision', 'vertical_precision']
|
||||
|
||||
def __init__(self, rdclass, rdtype, latitude, longitude, altitude,
|
||||
size=1.0, hprec=10000.0, vprec=10.0):
|
||||
"""Initialize a LOC record instance.
|
||||
|
||||
The parameters I{latitude} and I{longitude} may be either a 4-tuple
|
||||
of integers specifying (degrees, minutes, seconds, milliseconds),
|
||||
or they may be floating point values specifying the number of
|
||||
degrees. The other parameters are floats."""
|
||||
|
||||
super(LOC, self).__init__(rdclass, rdtype)
|
||||
if isinstance(latitude, int) or isinstance(latitude, long):
|
||||
latitude = float(latitude)
|
||||
if isinstance(latitude, float):
|
||||
latitude = _float_to_tuple(latitude)
|
||||
self.latitude = latitude
|
||||
if isinstance(longitude, int) or isinstance(longitude, long):
|
||||
longitude = float(longitude)
|
||||
if isinstance(longitude, float):
|
||||
longitude = _float_to_tuple(longitude)
|
||||
self.longitude = longitude
|
||||
self.altitude = float(altitude)
|
||||
self.size = float(size)
|
||||
self.horizontal_precision = float(hprec)
|
||||
self.vertical_precision = float(vprec)
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
if self.latitude[0] > 0:
|
||||
lat_hemisphere = 'N'
|
||||
lat_degrees = self.latitude[0]
|
||||
else:
|
||||
lat_hemisphere = 'S'
|
||||
lat_degrees = -1 * self.latitude[0]
|
||||
if self.longitude[0] > 0:
|
||||
long_hemisphere = 'E'
|
||||
long_degrees = self.longitude[0]
|
||||
else:
|
||||
long_hemisphere = 'W'
|
||||
long_degrees = -1 * self.longitude[0]
|
||||
text = "%d %d %d.%03d %s %d %d %d.%03d %s %0.2fm" % (
|
||||
lat_degrees, self.latitude[1], self.latitude[2], self.latitude[3],
|
||||
lat_hemisphere, long_degrees, self.longitude[1], self.longitude[2],
|
||||
self.longitude[3], long_hemisphere, self.altitude / 100.0
|
||||
)
|
||||
|
||||
if self.size != 1.0 or self.horizontal_precision != 10000.0 or \
|
||||
self.vertical_precision != 10.0:
|
||||
text += " %0.2fm %0.2fm %0.2fm" % (
|
||||
self.size / 100.0, self.horizontal_precision / 100.0,
|
||||
self.vertical_precision / 100.0
|
||||
)
|
||||
return text
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
latitude = [0, 0, 0, 0]
|
||||
longitude = [0, 0, 0, 0]
|
||||
size = 1.0
|
||||
hprec = 10000.0
|
||||
vprec = 10.0
|
||||
|
||||
latitude[0] = tok.get_int()
|
||||
t = tok.get_string()
|
||||
if t.isdigit():
|
||||
latitude[1] = int(t)
|
||||
t = tok.get_string()
|
||||
if '.' in t:
|
||||
(seconds, milliseconds) = t.split('.')
|
||||
if not seconds.isdigit():
|
||||
raise dns.exception.SyntaxError('bad latitude seconds value')
|
||||
latitude[2] = int(seconds)
|
||||
if latitude[2] >= 60:
|
||||
raise dns.exception.SyntaxError('latitude seconds >= 60')
|
||||
l = len(milliseconds)
|
||||
if l == 0 or l > 3 or not milliseconds.isdigit():
|
||||
raise dns.exception.SyntaxError('bad latitude milliseconds value')
|
||||
if l == 1:
|
||||
m = 100
|
||||
elif l == 2:
|
||||
m = 10
|
||||
else:
|
||||
m = 1
|
||||
latitude[3] = m * int(milliseconds)
|
||||
t = tok.get_string()
|
||||
elif t.isdigit():
|
||||
latitude[2] = int(t)
|
||||
t = tok.get_string()
|
||||
if t == 'S':
|
||||
latitude[0] *= -1
|
||||
elif t != 'N':
|
||||
raise dns.exception.SyntaxError('bad latitude hemisphere value')
|
||||
|
||||
longitude[0] = tok.get_int()
|
||||
t = tok.get_string()
|
||||
if t.isdigit():
|
||||
longitude[1] = int(t)
|
||||
t = tok.get_string()
|
||||
if '.' in t:
|
||||
(seconds, milliseconds) = t.split('.')
|
||||
if not seconds.isdigit():
|
||||
raise dns.exception.SyntaxError('bad longitude seconds value')
|
||||
longitude[2] = int(seconds)
|
||||
if longitude[2] >= 60:
|
||||
raise dns.exception.SyntaxError('longitude seconds >= 60')
|
||||
l = len(milliseconds)
|
||||
if l == 0 or l > 3 or not milliseconds.isdigit():
|
||||
raise dns.exception.SyntaxError('bad longitude milliseconds value')
|
||||
if l == 1:
|
||||
m = 100
|
||||
elif l == 2:
|
||||
m = 10
|
||||
else:
|
||||
m = 1
|
||||
longitude[3] = m * int(milliseconds)
|
||||
t = tok.get_string()
|
||||
elif t.isdigit():
|
||||
longitude[2] = int(t)
|
||||
t = tok.get_string()
|
||||
if t == 'W':
|
||||
longitude[0] *= -1
|
||||
elif t != 'E':
|
||||
raise dns.exception.SyntaxError('bad longitude hemisphere value')
|
||||
|
||||
t = tok.get_string()
|
||||
if t[-1] == 'm':
|
||||
t = t[0 : -1]
|
||||
altitude = float(t) * 100.0 # m -> cm
|
||||
|
||||
token = tok.get().unescape()
|
||||
if not token.is_eol_or_eof():
|
||||
value = token.value
|
||||
if value[-1] == 'm':
|
||||
value = value[0 : -1]
|
||||
size = float(value) * 100.0 # m -> cm
|
||||
token = tok.get().unescape()
|
||||
if not token.is_eol_or_eof():
|
||||
value = token.value
|
||||
if value[-1] == 'm':
|
||||
value = value[0 : -1]
|
||||
hprec = float(value) * 100.0 # m -> cm
|
||||
token = tok.get().unescape()
|
||||
if not token.is_eol_or_eof():
|
||||
value = token.value
|
||||
if value[-1] == 'm':
|
||||
value = value[0 : -1]
|
||||
vprec = float(value) * 100.0 # m -> cm
|
||||
tok.get_eol()
|
||||
|
||||
return cls(rdclass, rdtype, latitude, longitude, altitude,
|
||||
size, hprec, vprec)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
if self.latitude[0] < 0:
|
||||
sign = -1
|
||||
degrees = long(-1 * self.latitude[0])
|
||||
else:
|
||||
sign = 1
|
||||
degrees = long(self.latitude[0])
|
||||
milliseconds = (degrees * 3600000 +
|
||||
self.latitude[1] * 60000 +
|
||||
self.latitude[2] * 1000 +
|
||||
self.latitude[3]) * sign
|
||||
latitude = 0x80000000L + milliseconds
|
||||
if self.longitude[0] < 0:
|
||||
sign = -1
|
||||
degrees = long(-1 * self.longitude[0])
|
||||
else:
|
||||
sign = 1
|
||||
degrees = long(self.longitude[0])
|
||||
milliseconds = (degrees * 3600000 +
|
||||
self.longitude[1] * 60000 +
|
||||
self.longitude[2] * 1000 +
|
||||
self.longitude[3]) * sign
|
||||
longitude = 0x80000000L + milliseconds
|
||||
altitude = long(self.altitude) + 10000000L
|
||||
size = _encode_size(self.size, "size")
|
||||
hprec = _encode_size(self.horizontal_precision, "horizontal precision")
|
||||
vprec = _encode_size(self.vertical_precision, "vertical precision")
|
||||
wire = struct.pack("!BBBBIII", 0, size, hprec, vprec, latitude,
|
||||
longitude, altitude)
|
||||
file.write(wire)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
(version, size, hprec, vprec, latitude, longitude, altitude) = \
|
||||
struct.unpack("!BBBBIII", wire[current : current + rdlen])
|
||||
if latitude > 0x80000000L:
|
||||
latitude = float(latitude - 0x80000000L) / 3600000
|
||||
else:
|
||||
latitude = -1 * float(0x80000000L - latitude) / 3600000
|
||||
if latitude < -90.0 or latitude > 90.0:
|
||||
raise dns.exception.FormError("bad latitude")
|
||||
if longitude > 0x80000000L:
|
||||
longitude = float(longitude - 0x80000000L) / 3600000
|
||||
else:
|
||||
longitude = -1 * float(0x80000000L - longitude) / 3600000
|
||||
if longitude < -180.0 or longitude > 180.0:
|
||||
raise dns.exception.FormError("bad longitude")
|
||||
altitude = float(altitude) - 10000000.0
|
||||
size = _decode_size(size, "size")
|
||||
hprec = _decode_size(hprec, "horizontal precision")
|
||||
vprec = _decode_size(vprec, "vertical precision")
|
||||
return cls(rdclass, rdtype, latitude, longitude, altitude,
|
||||
size, hprec, vprec)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
f = cStringIO.StringIO()
|
||||
self.to_wire(f)
|
||||
wire1 = f.getvalue()
|
||||
f.seek(0)
|
||||
f.truncate()
|
||||
other.to_wire(f)
|
||||
wire2 = f.getvalue()
|
||||
f.close()
|
||||
|
||||
return cmp(wire1, wire2)
|
||||
|
||||
def _get_float_latitude(self):
|
||||
return _tuple_to_float(self.latitude)
|
||||
|
||||
def _set_float_latitude(self, value):
|
||||
self.latitude = _float_to_tuple(value)
|
||||
|
||||
float_latitude = property(_get_float_latitude, _set_float_latitude,
|
||||
doc="latitude as a floating point value")
|
||||
|
||||
def _get_float_longitude(self):
|
||||
return _tuple_to_float(self.longitude)
|
||||
|
||||
def _set_float_longitude(self, value):
|
||||
self.longitude = _float_to_tuple(value)
|
||||
|
||||
float_longitude = property(_get_float_longitude, _set_float_longitude,
|
||||
doc="longitude as a floating point value")
|
@ -1,20 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.rdtypes.mxbase
|
||||
|
||||
class MX(dns.rdtypes.mxbase.MXBase):
|
||||
"""MX record"""
|
||||
pass
|
@ -1,20 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.rdtypes.nsbase
|
||||
|
||||
class NS(dns.rdtypes.nsbase.NSBase):
|
||||
"""NS record"""
|
||||
pass
|
@ -1,141 +0,0 @@
|
||||
# Copyright (C) 2004-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import cStringIO
|
||||
|
||||
import dns.exception
|
||||
import dns.rdata
|
||||
import dns.rdatatype
|
||||
import dns.name
|
||||
|
||||
class NSEC(dns.rdata.Rdata):
|
||||
"""NSEC record
|
||||
|
||||
@ivar next: the next name
|
||||
@type next: dns.name.Name object
|
||||
@ivar windows: the windowed bitmap list
|
||||
@type windows: list of (window number, string) tuples"""
|
||||
|
||||
__slots__ = ['next', 'windows']
|
||||
|
||||
def __init__(self, rdclass, rdtype, next, windows):
|
||||
super(NSEC, self).__init__(rdclass, rdtype)
|
||||
self.next = next
|
||||
self.windows = windows
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
next = self.next.choose_relativity(origin, relativize)
|
||||
text = ''
|
||||
for (window, bitmap) in self.windows:
|
||||
bits = []
|
||||
for i in xrange(0, len(bitmap)):
|
||||
byte = ord(bitmap[i])
|
||||
for j in xrange(0, 8):
|
||||
if byte & (0x80 >> j):
|
||||
bits.append(dns.rdatatype.to_text(window * 256 + \
|
||||
i * 8 + j))
|
||||
text += (' ' + ' '.join(bits))
|
||||
return '%s%s' % (next, text)
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
next = tok.get_name()
|
||||
next = next.choose_relativity(origin, relativize)
|
||||
rdtypes = []
|
||||
while 1:
|
||||
token = tok.get().unescape()
|
||||
if token.is_eol_or_eof():
|
||||
break
|
||||
nrdtype = dns.rdatatype.from_text(token.value)
|
||||
if nrdtype == 0:
|
||||
raise dns.exception.SyntaxError("NSEC with bit 0")
|
||||
if nrdtype > 65535:
|
||||
raise dns.exception.SyntaxError("NSEC with bit > 65535")
|
||||
rdtypes.append(nrdtype)
|
||||
rdtypes.sort()
|
||||
window = 0
|
||||
octets = 0
|
||||
prior_rdtype = 0
|
||||
bitmap = ['\0'] * 32
|
||||
windows = []
|
||||
for nrdtype in rdtypes:
|
||||
if nrdtype == prior_rdtype:
|
||||
continue
|
||||
prior_rdtype = nrdtype
|
||||
new_window = nrdtype // 256
|
||||
if new_window != window:
|
||||
windows.append((window, ''.join(bitmap[0:octets])))
|
||||
bitmap = ['\0'] * 32
|
||||
window = new_window
|
||||
offset = nrdtype % 256
|
||||
byte = offset / 8
|
||||
bit = offset % 8
|
||||
octets = byte + 1
|
||||
bitmap[byte] = chr(ord(bitmap[byte]) | (0x80 >> bit))
|
||||
windows.append((window, ''.join(bitmap[0:octets])))
|
||||
return cls(rdclass, rdtype, next, windows)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
self.next.to_wire(file, None, origin)
|
||||
for (window, bitmap) in self.windows:
|
||||
file.write(chr(window))
|
||||
file.write(chr(len(bitmap)))
|
||||
file.write(bitmap)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
(next, cused) = dns.name.from_wire(wire[: current + rdlen], current)
|
||||
current += cused
|
||||
rdlen -= cused
|
||||
windows = []
|
||||
while rdlen > 0:
|
||||
if rdlen < 3:
|
||||
raise dns.exception.FormError("NSEC too short")
|
||||
window = ord(wire[current])
|
||||
octets = ord(wire[current + 1])
|
||||
if octets == 0 or octets > 32:
|
||||
raise dns.exception.FormError("bad NSEC octets")
|
||||
current += 2
|
||||
rdlen -= 2
|
||||
if rdlen < octets:
|
||||
raise dns.exception.FormError("bad NSEC bitmap length")
|
||||
bitmap = wire[current : current + octets]
|
||||
current += octets
|
||||
rdlen -= octets
|
||||
windows.append((window, bitmap))
|
||||
if not origin is None:
|
||||
next = next.relativize(origin)
|
||||
return cls(rdclass, rdtype, next, windows)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def choose_relativity(self, origin = None, relativize = True):
|
||||
self.next = self.next.choose_relativity(origin, relativize)
|
||||
|
||||
def _cmp(self, other):
|
||||
v = cmp(self.next, other.next)
|
||||
if v == 0:
|
||||
b1 = cStringIO.StringIO()
|
||||
for (window, bitmap) in self.windows:
|
||||
b1.write(chr(window))
|
||||
b1.write(chr(len(bitmap)))
|
||||
b1.write(bitmap)
|
||||
b2 = cStringIO.StringIO()
|
||||
for (window, bitmap) in other.windows:
|
||||
b2.write(chr(window))
|
||||
b2.write(chr(len(bitmap)))
|
||||
b2.write(bitmap)
|
||||
v = cmp(b1.getvalue(), b2.getvalue())
|
||||
return v
|
@ -1,182 +0,0 @@
|
||||
# Copyright (C) 2004-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import base64
|
||||
import cStringIO
|
||||
import string
|
||||
import struct
|
||||
|
||||
import dns.exception
|
||||
import dns.rdata
|
||||
import dns.rdatatype
|
||||
|
||||
b32_hex_to_normal = string.maketrans('0123456789ABCDEFGHIJKLMNOPQRSTUV',
|
||||
'ABCDEFGHIJKLMNOPQRSTUVWXYZ234567')
|
||||
b32_normal_to_hex = string.maketrans('ABCDEFGHIJKLMNOPQRSTUVWXYZ234567',
|
||||
'0123456789ABCDEFGHIJKLMNOPQRSTUV')
|
||||
|
||||
# hash algorithm constants
|
||||
SHA1 = 1
|
||||
|
||||
# flag constants
|
||||
OPTOUT = 1
|
||||
|
||||
class NSEC3(dns.rdata.Rdata):
|
||||
"""NSEC3 record
|
||||
|
||||
@ivar algorithm: the hash algorithm number
|
||||
@type algorithm: int
|
||||
@ivar flags: the flags
|
||||
@type flags: int
|
||||
@ivar iterations: the number of iterations
|
||||
@type iterations: int
|
||||
@ivar salt: the salt
|
||||
@type salt: string
|
||||
@ivar next: the next name hash
|
||||
@type next: string
|
||||
@ivar windows: the windowed bitmap list
|
||||
@type windows: list of (window number, string) tuples"""
|
||||
|
||||
__slots__ = ['algorithm', 'flags', 'iterations', 'salt', 'next', 'windows']
|
||||
|
||||
def __init__(self, rdclass, rdtype, algorithm, flags, iterations, salt,
|
||||
next, windows):
|
||||
super(NSEC3, self).__init__(rdclass, rdtype)
|
||||
self.algorithm = algorithm
|
||||
self.flags = flags
|
||||
self.iterations = iterations
|
||||
self.salt = salt
|
||||
self.next = next
|
||||
self.windows = windows
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
next = base64.b32encode(self.next).translate(b32_normal_to_hex).lower()
|
||||
if self.salt == '':
|
||||
salt = '-'
|
||||
else:
|
||||
salt = self.salt.encode('hex-codec')
|
||||
text = ''
|
||||
for (window, bitmap) in self.windows:
|
||||
bits = []
|
||||
for i in xrange(0, len(bitmap)):
|
||||
byte = ord(bitmap[i])
|
||||
for j in xrange(0, 8):
|
||||
if byte & (0x80 >> j):
|
||||
bits.append(dns.rdatatype.to_text(window * 256 + \
|
||||
i * 8 + j))
|
||||
text += (' ' + ' '.join(bits))
|
||||
return '%u %u %u %s %s%s' % (self.algorithm, self.flags, self.iterations,
|
||||
salt, next, text)
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
algorithm = tok.get_uint8()
|
||||
flags = tok.get_uint8()
|
||||
iterations = tok.get_uint16()
|
||||
salt = tok.get_string()
|
||||
if salt == '-':
|
||||
salt = ''
|
||||
else:
|
||||
salt = salt.decode('hex-codec')
|
||||
next = tok.get_string().upper().translate(b32_hex_to_normal)
|
||||
next = base64.b32decode(next)
|
||||
rdtypes = []
|
||||
while 1:
|
||||
token = tok.get().unescape()
|
||||
if token.is_eol_or_eof():
|
||||
break
|
||||
nrdtype = dns.rdatatype.from_text(token.value)
|
||||
if nrdtype == 0:
|
||||
raise dns.exception.SyntaxError("NSEC3 with bit 0")
|
||||
if nrdtype > 65535:
|
||||
raise dns.exception.SyntaxError("NSEC3 with bit > 65535")
|
||||
rdtypes.append(nrdtype)
|
||||
rdtypes.sort()
|
||||
window = 0
|
||||
octets = 0
|
||||
prior_rdtype = 0
|
||||
bitmap = ['\0'] * 32
|
||||
windows = []
|
||||
for nrdtype in rdtypes:
|
||||
if nrdtype == prior_rdtype:
|
||||
continue
|
||||
prior_rdtype = nrdtype
|
||||
new_window = nrdtype // 256
|
||||
if new_window != window:
|
||||
windows.append((window, ''.join(bitmap[0:octets])))
|
||||
bitmap = ['\0'] * 32
|
||||
window = new_window
|
||||
offset = nrdtype % 256
|
||||
byte = offset / 8
|
||||
bit = offset % 8
|
||||
octets = byte + 1
|
||||
bitmap[byte] = chr(ord(bitmap[byte]) | (0x80 >> bit))
|
||||
windows.append((window, ''.join(bitmap[0:octets])))
|
||||
return cls(rdclass, rdtype, algorithm, flags, iterations, salt, next, windows)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
l = len(self.salt)
|
||||
file.write(struct.pack("!BBHB", self.algorithm, self.flags,
|
||||
self.iterations, l))
|
||||
file.write(self.salt)
|
||||
l = len(self.next)
|
||||
file.write(struct.pack("!B", l))
|
||||
file.write(self.next)
|
||||
for (window, bitmap) in self.windows:
|
||||
file.write(chr(window))
|
||||
file.write(chr(len(bitmap)))
|
||||
file.write(bitmap)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
(algorithm, flags, iterations, slen) = struct.unpack('!BBHB',
|
||||
wire[current : current + 5])
|
||||
current += 5
|
||||
rdlen -= 5
|
||||
salt = wire[current : current + slen]
|
||||
current += slen
|
||||
rdlen -= slen
|
||||
(nlen, ) = struct.unpack('!B', wire[current])
|
||||
current += 1
|
||||
rdlen -= 1
|
||||
next = wire[current : current + nlen]
|
||||
current += nlen
|
||||
rdlen -= nlen
|
||||
windows = []
|
||||
while rdlen > 0:
|
||||
if rdlen < 3:
|
||||
raise dns.exception.FormError("NSEC3 too short")
|
||||
window = ord(wire[current])
|
||||
octets = ord(wire[current + 1])
|
||||
if octets == 0 or octets > 32:
|
||||
raise dns.exception.FormError("bad NSEC3 octets")
|
||||
current += 2
|
||||
rdlen -= 2
|
||||
if rdlen < octets:
|
||||
raise dns.exception.FormError("bad NSEC3 bitmap length")
|
||||
bitmap = wire[current : current + octets]
|
||||
current += octets
|
||||
rdlen -= octets
|
||||
windows.append((window, bitmap))
|
||||
return cls(rdclass, rdtype, algorithm, flags, iterations, salt, next, windows)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
b1 = cStringIO.StringIO()
|
||||
self.to_wire(b1)
|
||||
b2 = cStringIO.StringIO()
|
||||
other.to_wire(b2)
|
||||
return cmp(b1.getvalue(), b2.getvalue())
|
@ -1,88 +0,0 @@
|
||||
# Copyright (C) 2004-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import cStringIO
|
||||
import struct
|
||||
|
||||
import dns.exception
|
||||
import dns.rdata
|
||||
|
||||
class NSEC3PARAM(dns.rdata.Rdata):
|
||||
"""NSEC3PARAM record
|
||||
|
||||
@ivar algorithm: the hash algorithm number
|
||||
@type algorithm: int
|
||||
@ivar flags: the flags
|
||||
@type flags: int
|
||||
@ivar iterations: the number of iterations
|
||||
@type iterations: int
|
||||
@ivar salt: the salt
|
||||
@type salt: string"""
|
||||
|
||||
__slots__ = ['algorithm', 'flags', 'iterations', 'salt']
|
||||
|
||||
def __init__(self, rdclass, rdtype, algorithm, flags, iterations, salt):
|
||||
super(NSEC3PARAM, self).__init__(rdclass, rdtype)
|
||||
self.algorithm = algorithm
|
||||
self.flags = flags
|
||||
self.iterations = iterations
|
||||
self.salt = salt
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
if self.salt == '':
|
||||
salt = '-'
|
||||
else:
|
||||
salt = self.salt.encode('hex-codec')
|
||||
return '%u %u %u %s' % (self.algorithm, self.flags, self.iterations, salt)
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
algorithm = tok.get_uint8()
|
||||
flags = tok.get_uint8()
|
||||
iterations = tok.get_uint16()
|
||||
salt = tok.get_string()
|
||||
if salt == '-':
|
||||
salt = ''
|
||||
else:
|
||||
salt = salt.decode('hex-codec')
|
||||
return cls(rdclass, rdtype, algorithm, flags, iterations, salt)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
l = len(self.salt)
|
||||
file.write(struct.pack("!BBHB", self.algorithm, self.flags,
|
||||
self.iterations, l))
|
||||
file.write(self.salt)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
(algorithm, flags, iterations, slen) = struct.unpack('!BBHB',
|
||||
wire[current : current + 5])
|
||||
current += 5
|
||||
rdlen -= 5
|
||||
salt = wire[current : current + slen]
|
||||
current += slen
|
||||
rdlen -= slen
|
||||
if rdlen != 0:
|
||||
raise dns.exception.FormError
|
||||
return cls(rdclass, rdtype, algorithm, flags, iterations, salt)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
b1 = cStringIO.StringIO()
|
||||
self.to_wire(b1)
|
||||
b2 = cStringIO.StringIO()
|
||||
other.to_wire(b2)
|
||||
return cmp(b1.getvalue(), b2.getvalue())
|
@ -1,99 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.exception
|
||||
import dns.rdata
|
||||
import dns.rdatatype
|
||||
import dns.name
|
||||
|
||||
class NXT(dns.rdata.Rdata):
|
||||
"""NXT record
|
||||
|
||||
@ivar next: the next name
|
||||
@type next: dns.name.Name object
|
||||
@ivar bitmap: the type bitmap
|
||||
@type bitmap: string
|
||||
@see: RFC 2535"""
|
||||
|
||||
__slots__ = ['next', 'bitmap']
|
||||
|
||||
def __init__(self, rdclass, rdtype, next, bitmap):
|
||||
super(NXT, self).__init__(rdclass, rdtype)
|
||||
self.next = next
|
||||
self.bitmap = bitmap
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
next = self.next.choose_relativity(origin, relativize)
|
||||
bits = []
|
||||
for i in xrange(0, len(self.bitmap)):
|
||||
byte = ord(self.bitmap[i])
|
||||
for j in xrange(0, 8):
|
||||
if byte & (0x80 >> j):
|
||||
bits.append(dns.rdatatype.to_text(i * 8 + j))
|
||||
text = ' '.join(bits)
|
||||
return '%s %s' % (next, text)
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
next = tok.get_name()
|
||||
next = next.choose_relativity(origin, relativize)
|
||||
bitmap = ['\x00', '\x00', '\x00', '\x00',
|
||||
'\x00', '\x00', '\x00', '\x00',
|
||||
'\x00', '\x00', '\x00', '\x00',
|
||||
'\x00', '\x00', '\x00', '\x00' ]
|
||||
while 1:
|
||||
token = tok.get().unescape()
|
||||
if token.is_eol_or_eof():
|
||||
break
|
||||
if token.value.isdigit():
|
||||
nrdtype = int(token.value)
|
||||
else:
|
||||
nrdtype = dns.rdatatype.from_text(token.value)
|
||||
if nrdtype == 0:
|
||||
raise dns.exception.SyntaxError("NXT with bit 0")
|
||||
if nrdtype > 127:
|
||||
raise dns.exception.SyntaxError("NXT with bit > 127")
|
||||
i = nrdtype // 8
|
||||
bitmap[i] = chr(ord(bitmap[i]) | (0x80 >> (nrdtype % 8)))
|
||||
bitmap = dns.rdata._truncate_bitmap(bitmap)
|
||||
return cls(rdclass, rdtype, next, bitmap)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
self.next.to_wire(file, None, origin)
|
||||
file.write(self.bitmap)
|
||||
|
||||
def to_digestable(self, origin = None):
|
||||
return self.next.to_digestable(origin) + self.bitmap
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
(next, cused) = dns.name.from_wire(wire[: current + rdlen], current)
|
||||
current += cused
|
||||
rdlen -= cused
|
||||
bitmap = wire[current : current + rdlen]
|
||||
if not origin is None:
|
||||
next = next.relativize(origin)
|
||||
return cls(rdclass, rdtype, next, bitmap)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def choose_relativity(self, origin = None, relativize = True):
|
||||
self.next = self.next.choose_relativity(origin, relativize)
|
||||
|
||||
def _cmp(self, other):
|
||||
v = cmp(self.next, other.next)
|
||||
if v == 0:
|
||||
v = cmp(self.bitmap, other.bitmap)
|
||||
return v
|
@ -1,20 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.rdtypes.nsbase
|
||||
|
||||
class PTR(dns.rdtypes.nsbase.NSBase):
|
||||
"""PTR record"""
|
||||
pass
|
@ -1,86 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.exception
|
||||
import dns.rdata
|
||||
import dns.name
|
||||
|
||||
class RP(dns.rdata.Rdata):
|
||||
"""RP record
|
||||
|
||||
@ivar mbox: The responsible person's mailbox
|
||||
@type mbox: dns.name.Name object
|
||||
@ivar txt: The owner name of a node with TXT records, or the root name
|
||||
if no TXT records are associated with this RP.
|
||||
@type txt: dns.name.Name object
|
||||
@see: RFC 1183"""
|
||||
|
||||
__slots__ = ['mbox', 'txt']
|
||||
|
||||
def __init__(self, rdclass, rdtype, mbox, txt):
|
||||
super(RP, self).__init__(rdclass, rdtype)
|
||||
self.mbox = mbox
|
||||
self.txt = txt
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
mbox = self.mbox.choose_relativity(origin, relativize)
|
||||
txt = self.txt.choose_relativity(origin, relativize)
|
||||
return "%s %s" % (str(mbox), str(txt))
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
mbox = tok.get_name()
|
||||
txt = tok.get_name()
|
||||
mbox = mbox.choose_relativity(origin, relativize)
|
||||
txt = txt.choose_relativity(origin, relativize)
|
||||
tok.get_eol()
|
||||
return cls(rdclass, rdtype, mbox, txt)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
self.mbox.to_wire(file, None, origin)
|
||||
self.txt.to_wire(file, None, origin)
|
||||
|
||||
def to_digestable(self, origin = None):
|
||||
return self.mbox.to_digestable(origin) + \
|
||||
self.txt.to_digestable(origin)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
(mbox, cused) = dns.name.from_wire(wire[: current + rdlen],
|
||||
current)
|
||||
current += cused
|
||||
rdlen -= cused
|
||||
if rdlen <= 0:
|
||||
raise dns.exception.FormError
|
||||
(txt, cused) = dns.name.from_wire(wire[: current + rdlen],
|
||||
current)
|
||||
if cused != rdlen:
|
||||
raise dns.exception.FormError
|
||||
if not origin is None:
|
||||
mbox = mbox.relativize(origin)
|
||||
txt = txt.relativize(origin)
|
||||
return cls(rdclass, rdtype, mbox, txt)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def choose_relativity(self, origin = None, relativize = True):
|
||||
self.mbox = self.mbox.choose_relativity(origin, relativize)
|
||||
self.txt = self.txt.choose_relativity(origin, relativize)
|
||||
|
||||
def _cmp(self, other):
|
||||
v = cmp(self.mbox, other.mbox)
|
||||
if v == 0:
|
||||
v = cmp(self.txt, other.txt)
|
||||
return v
|
@ -1,20 +0,0 @@
|
||||
# Copyright (C) 2004-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.rdtypes.sigbase
|
||||
|
||||
class RRSIG(dns.rdtypes.sigbase.SIGBase):
|
||||
"""RRSIG record"""
|
||||
pass
|
@ -1,20 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.rdtypes.mxbase
|
||||
|
||||
class RT(dns.rdtypes.mxbase.UncompressedDowncasingMX):
|
||||
"""RT record"""
|
||||
pass
|
@ -1,26 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.rdtypes.sigbase
|
||||
|
||||
class SIG(dns.rdtypes.sigbase.SIGBase):
|
||||
"""SIG record"""
|
||||
def to_digestable(self, origin = None):
|
||||
return struct.pack('!HBBIIIH', self.type_covered,
|
||||
self.algorithm, self.labels,
|
||||
self.original_ttl, self.expiration,
|
||||
self.inception, self.key_tag) + \
|
||||
self.signer.to_digestable(origin) + \
|
||||
self.signature
|
@ -1,127 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import struct
|
||||
|
||||
import dns.exception
|
||||
import dns.rdata
|
||||
import dns.name
|
||||
|
||||
class SOA(dns.rdata.Rdata):
|
||||
"""SOA record
|
||||
|
||||
@ivar mname: the SOA MNAME (master name) field
|
||||
@type mname: dns.name.Name object
|
||||
@ivar rname: the SOA RNAME (responsible name) field
|
||||
@type rname: dns.name.Name object
|
||||
@ivar serial: The zone's serial number
|
||||
@type serial: int
|
||||
@ivar refresh: The zone's refresh value (in seconds)
|
||||
@type refresh: int
|
||||
@ivar retry: The zone's retry value (in seconds)
|
||||
@type retry: int
|
||||
@ivar expire: The zone's expiration value (in seconds)
|
||||
@type expire: int
|
||||
@ivar minimum: The zone's negative caching time (in seconds, called
|
||||
"minimum" for historical reasons)
|
||||
@type minimum: int
|
||||
@see: RFC 1035"""
|
||||
|
||||
__slots__ = ['mname', 'rname', 'serial', 'refresh', 'retry', 'expire',
|
||||
'minimum']
|
||||
|
||||
def __init__(self, rdclass, rdtype, mname, rname, serial, refresh, retry,
|
||||
expire, minimum):
|
||||
super(SOA, self).__init__(rdclass, rdtype)
|
||||
self.mname = mname
|
||||
self.rname = rname
|
||||
self.serial = serial
|
||||
self.refresh = refresh
|
||||
self.retry = retry
|
||||
self.expire = expire
|
||||
self.minimum = minimum
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
mname = self.mname.choose_relativity(origin, relativize)
|
||||
rname = self.rname.choose_relativity(origin, relativize)
|
||||
return '%s %s %d %d %d %d %d' % (
|
||||
mname, rname, self.serial, self.refresh, self.retry,
|
||||
self.expire, self.minimum )
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
mname = tok.get_name()
|
||||
rname = tok.get_name()
|
||||
mname = mname.choose_relativity(origin, relativize)
|
||||
rname = rname.choose_relativity(origin, relativize)
|
||||
serial = tok.get_uint32()
|
||||
refresh = tok.get_ttl()
|
||||
retry = tok.get_ttl()
|
||||
expire = tok.get_ttl()
|
||||
minimum = tok.get_ttl()
|
||||
tok.get_eol()
|
||||
return cls(rdclass, rdtype, mname, rname, serial, refresh, retry,
|
||||
expire, minimum )
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
self.mname.to_wire(file, compress, origin)
|
||||
self.rname.to_wire(file, compress, origin)
|
||||
five_ints = struct.pack('!IIIII', self.serial, self.refresh,
|
||||
self.retry, self.expire, self.minimum)
|
||||
file.write(five_ints)
|
||||
|
||||
def to_digestable(self, origin = None):
|
||||
return self.mname.to_digestable(origin) + \
|
||||
self.rname.to_digestable(origin) + \
|
||||
struct.pack('!IIIII', self.serial, self.refresh,
|
||||
self.retry, self.expire, self.minimum)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
(mname, cused) = dns.name.from_wire(wire[: current + rdlen], current)
|
||||
current += cused
|
||||
rdlen -= cused
|
||||
(rname, cused) = dns.name.from_wire(wire[: current + rdlen], current)
|
||||
current += cused
|
||||
rdlen -= cused
|
||||
if rdlen != 20:
|
||||
raise dns.exception.FormError
|
||||
five_ints = struct.unpack('!IIIII',
|
||||
wire[current : current + rdlen])
|
||||
if not origin is None:
|
||||
mname = mname.relativize(origin)
|
||||
rname = rname.relativize(origin)
|
||||
return cls(rdclass, rdtype, mname, rname,
|
||||
five_ints[0], five_ints[1], five_ints[2], five_ints[3],
|
||||
five_ints[4])
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def choose_relativity(self, origin = None, relativize = True):
|
||||
self.mname = self.mname.choose_relativity(origin, relativize)
|
||||
self.rname = self.rname.choose_relativity(origin, relativize)
|
||||
|
||||
def _cmp(self, other):
|
||||
v = cmp(self.mname, other.mname)
|
||||
if v == 0:
|
||||
v = cmp(self.rname, other.rname)
|
||||
if v == 0:
|
||||
self_ints = struct.pack('!IIIII', self.serial, self.refresh,
|
||||
self.retry, self.expire, self.minimum)
|
||||
other_ints = struct.pack('!IIIII', other.serial, other.refresh,
|
||||
other.retry, other.expire,
|
||||
other.minimum)
|
||||
v = cmp(self_ints, other_ints)
|
||||
return v
|
@ -1,22 +0,0 @@
|
||||
# Copyright (C) 2006, 2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.rdtypes.txtbase
|
||||
|
||||
class SPF(dns.rdtypes.txtbase.TXTBase):
|
||||
"""SPF record
|
||||
|
||||
@see: RFC 4408"""
|
||||
pass
|
@ -1,77 +0,0 @@
|
||||
# Copyright (C) 2005-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import struct
|
||||
|
||||
import dns.rdata
|
||||
import dns.rdatatype
|
||||
|
||||
class SSHFP(dns.rdata.Rdata):
|
||||
"""SSHFP record
|
||||
|
||||
@ivar algorithm: the algorithm
|
||||
@type algorithm: int
|
||||
@ivar fp_type: the digest type
|
||||
@type fp_type: int
|
||||
@ivar fingerprint: the fingerprint
|
||||
@type fingerprint: string
|
||||
@see: draft-ietf-secsh-dns-05.txt"""
|
||||
|
||||
__slots__ = ['algorithm', 'fp_type', 'fingerprint']
|
||||
|
||||
def __init__(self, rdclass, rdtype, algorithm, fp_type,
|
||||
fingerprint):
|
||||
super(SSHFP, self).__init__(rdclass, rdtype)
|
||||
self.algorithm = algorithm
|
||||
self.fp_type = fp_type
|
||||
self.fingerprint = fingerprint
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
return '%d %d %s' % (self.algorithm,
|
||||
self.fp_type,
|
||||
dns.rdata._hexify(self.fingerprint,
|
||||
chunksize=128))
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
algorithm = tok.get_uint8()
|
||||
fp_type = tok.get_uint8()
|
||||
fingerprint = tok.get_string()
|
||||
fingerprint = fingerprint.decode('hex_codec')
|
||||
tok.get_eol()
|
||||
return cls(rdclass, rdtype, algorithm, fp_type, fingerprint)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
header = struct.pack("!BB", self.algorithm, self.fp_type)
|
||||
file.write(header)
|
||||
file.write(self.fingerprint)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
header = struct.unpack("!BB", wire[current : current + 2])
|
||||
current += 2
|
||||
rdlen -= 2
|
||||
fingerprint = wire[current : current + rdlen]
|
||||
return cls(rdclass, rdtype, header[0], header[1], fingerprint)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
hs = struct.pack("!BB", self.algorithm, self.fp_type)
|
||||
ho = struct.pack("!BB", other.algorithm, other.fp_type)
|
||||
v = cmp(hs, ho)
|
||||
if v == 0:
|
||||
v = cmp(self.fingerprint, other.fingerprint)
|
||||
return v
|
@ -1,20 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.rdtypes.txtbase
|
||||
|
||||
class TXT(dns.rdtypes.txtbase.TXTBase):
|
||||
"""TXT record"""
|
||||
pass
|
@ -1,62 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.exception
|
||||
import dns.rdata
|
||||
import dns.tokenizer
|
||||
|
||||
class X25(dns.rdata.Rdata):
|
||||
"""X25 record
|
||||
|
||||
@ivar address: the PSDN address
|
||||
@type address: string
|
||||
@see: RFC 1183"""
|
||||
|
||||
__slots__ = ['address']
|
||||
|
||||
def __init__(self, rdclass, rdtype, address):
|
||||
super(X25, self).__init__(rdclass, rdtype)
|
||||
self.address = address
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
return '"%s"' % dns.rdata._escapify(self.address)
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
address = tok.get_string()
|
||||
tok.get_eol()
|
||||
return cls(rdclass, rdtype, address)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
l = len(self.address)
|
||||
assert l < 256
|
||||
byte = chr(l)
|
||||
file.write(byte)
|
||||
file.write(self.address)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
l = ord(wire[current])
|
||||
current += 1
|
||||
rdlen -= 1
|
||||
if l != rdlen:
|
||||
raise dns.exception.FormError
|
||||
address = wire[current : current + l]
|
||||
return cls(rdclass, rdtype, address)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
return cmp(self.address, other.address)
|
@ -1,48 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""Class ANY (generic) rdata type classes."""
|
||||
|
||||
__all__ = [
|
||||
'AFSDB',
|
||||
'CERT',
|
||||
'CNAME',
|
||||
'DLV',
|
||||
'DNAME',
|
||||
'DNSKEY',
|
||||
'DS',
|
||||
'GPOS',
|
||||
'HINFO',
|
||||
'HIP',
|
||||
'ISDN',
|
||||
'KEY',
|
||||
'LOC',
|
||||
'MX',
|
||||
'NS',
|
||||
'NSEC',
|
||||
'NSEC3',
|
||||
'NSEC3PARAM',
|
||||
'NXT',
|
||||
'PTR',
|
||||
'RP',
|
||||
'RRSIG',
|
||||
'RT',
|
||||
'SIG',
|
||||
'SOA',
|
||||
'SPF',
|
||||
'SSHFP',
|
||||
'TXT',
|
||||
'X25',
|
||||
]
|
@ -1,57 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.exception
|
||||
import dns.ipv4
|
||||
import dns.rdata
|
||||
import dns.tokenizer
|
||||
|
||||
class A(dns.rdata.Rdata):
|
||||
"""A record.
|
||||
|
||||
@ivar address: an IPv4 address
|
||||
@type address: string (in the standard "dotted quad" format)"""
|
||||
|
||||
__slots__ = ['address']
|
||||
|
||||
def __init__(self, rdclass, rdtype, address):
|
||||
super(A, self).__init__(rdclass, rdtype)
|
||||
# check that it's OK
|
||||
junk = dns.ipv4.inet_aton(address)
|
||||
self.address = address
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
return self.address
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
address = tok.get_identifier()
|
||||
tok.get_eol()
|
||||
return cls(rdclass, rdtype, address)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
file.write(dns.ipv4.inet_aton(self.address))
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
address = dns.ipv4.inet_ntoa(wire[current : current + rdlen])
|
||||
return cls(rdclass, rdtype, address)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
sa = dns.ipv4.inet_aton(self.address)
|
||||
oa = dns.ipv4.inet_aton(other.address)
|
||||
return cmp(sa, oa)
|
@ -1,58 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.exception
|
||||
import dns.inet
|
||||
import dns.rdata
|
||||
import dns.tokenizer
|
||||
|
||||
class AAAA(dns.rdata.Rdata):
|
||||
"""AAAA record.
|
||||
|
||||
@ivar address: an IPv6 address
|
||||
@type address: string (in the standard IPv6 format)"""
|
||||
|
||||
__slots__ = ['address']
|
||||
|
||||
def __init__(self, rdclass, rdtype, address):
|
||||
super(AAAA, self).__init__(rdclass, rdtype)
|
||||
# check that it's OK
|
||||
junk = dns.inet.inet_pton(dns.inet.AF_INET6, address)
|
||||
self.address = address
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
return self.address
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
address = tok.get_identifier()
|
||||
tok.get_eol()
|
||||
return cls(rdclass, rdtype, address)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
file.write(dns.inet.inet_pton(dns.inet.AF_INET6, self.address))
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
address = dns.inet.inet_ntop(dns.inet.AF_INET6,
|
||||
wire[current : current + rdlen])
|
||||
return cls(rdclass, rdtype, address)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
sa = dns.inet.inet_pton(dns.inet.AF_INET6, self.address)
|
||||
oa = dns.inet.inet_pton(dns.inet.AF_INET6, other.address)
|
||||
return cmp(sa, oa)
|
@ -1,170 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import cStringIO
|
||||
import struct
|
||||
|
||||
import dns.exception
|
||||
import dns.inet
|
||||
import dns.rdata
|
||||
import dns.tokenizer
|
||||
|
||||
class APLItem(object):
|
||||
"""An APL list item.
|
||||
|
||||
@ivar family: the address family (IANA address family registry)
|
||||
@type family: int
|
||||
@ivar negation: is this item negated?
|
||||
@type negation: bool
|
||||
@ivar address: the address
|
||||
@type address: string
|
||||
@ivar prefix: the prefix length
|
||||
@type prefix: int
|
||||
"""
|
||||
|
||||
__slots__ = ['family', 'negation', 'address', 'prefix']
|
||||
|
||||
def __init__(self, family, negation, address, prefix):
|
||||
self.family = family
|
||||
self.negation = negation
|
||||
self.address = address
|
||||
self.prefix = prefix
|
||||
|
||||
def __str__(self):
|
||||
if self.negation:
|
||||
return "!%d:%s/%s" % (self.family, self.address, self.prefix)
|
||||
else:
|
||||
return "%d:%s/%s" % (self.family, self.address, self.prefix)
|
||||
|
||||
def to_wire(self, file):
|
||||
if self.family == 1:
|
||||
address = dns.inet.inet_pton(dns.inet.AF_INET, self.address)
|
||||
elif self.family == 2:
|
||||
address = dns.inet.inet_pton(dns.inet.AF_INET6, self.address)
|
||||
else:
|
||||
address = self.address.decode('hex_codec')
|
||||
#
|
||||
# Truncate least significant zero bytes.
|
||||
#
|
||||
last = 0
|
||||
for i in xrange(len(address) - 1, -1, -1):
|
||||
if address[i] != chr(0):
|
||||
last = i + 1
|
||||
break
|
||||
address = address[0 : last]
|
||||
l = len(address)
|
||||
assert l < 128
|
||||
if self.negation:
|
||||
l |= 0x80
|
||||
header = struct.pack('!HBB', self.family, self.prefix, l)
|
||||
file.write(header)
|
||||
file.write(address)
|
||||
|
||||
class APL(dns.rdata.Rdata):
|
||||
"""APL record.
|
||||
|
||||
@ivar items: a list of APL items
|
||||
@type items: list of APL_Item
|
||||
@see: RFC 3123"""
|
||||
|
||||
__slots__ = ['items']
|
||||
|
||||
def __init__(self, rdclass, rdtype, items):
|
||||
super(APL, self).__init__(rdclass, rdtype)
|
||||
self.items = items
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
return ' '.join(map(lambda x: str(x), self.items))
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
items = []
|
||||
while 1:
|
||||
token = tok.get().unescape()
|
||||
if token.is_eol_or_eof():
|
||||
break
|
||||
item = token.value
|
||||
if item[0] == '!':
|
||||
negation = True
|
||||
item = item[1:]
|
||||
else:
|
||||
negation = False
|
||||
(family, rest) = item.split(':', 1)
|
||||
family = int(family)
|
||||
(address, prefix) = rest.split('/', 1)
|
||||
prefix = int(prefix)
|
||||
item = APLItem(family, negation, address, prefix)
|
||||
items.append(item)
|
||||
|
||||
return cls(rdclass, rdtype, items)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
for item in self.items:
|
||||
item.to_wire(file)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
items = []
|
||||
while 1:
|
||||
if rdlen < 4:
|
||||
raise dns.exception.FormError
|
||||
header = struct.unpack('!HBB', wire[current : current + 4])
|
||||
afdlen = header[2]
|
||||
if afdlen > 127:
|
||||
negation = True
|
||||
afdlen -= 128
|
||||
else:
|
||||
negation = False
|
||||
current += 4
|
||||
rdlen -= 4
|
||||
if rdlen < afdlen:
|
||||
raise dns.exception.FormError
|
||||
address = wire[current : current + afdlen]
|
||||
l = len(address)
|
||||
if header[0] == 1:
|
||||
if l < 4:
|
||||
address += '\x00' * (4 - l)
|
||||
address = dns.inet.inet_ntop(dns.inet.AF_INET, address)
|
||||
elif header[0] == 2:
|
||||
if l < 16:
|
||||
address += '\x00' * (16 - l)
|
||||
address = dns.inet.inet_ntop(dns.inet.AF_INET6, address)
|
||||
else:
|
||||
#
|
||||
# This isn't really right according to the RFC, but it
|
||||
# seems better than throwing an exception
|
||||
#
|
||||
address = address.encode('hex_codec')
|
||||
current += afdlen
|
||||
rdlen -= afdlen
|
||||
item = APLItem(header[0], negation, address, header[1])
|
||||
items.append(item)
|
||||
if rdlen == 0:
|
||||
break
|
||||
return cls(rdclass, rdtype, items)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
f = cStringIO.StringIO()
|
||||
self.to_wire(f)
|
||||
wire1 = f.getvalue()
|
||||
f.seek(0)
|
||||
f.truncate()
|
||||
other.to_wire(f)
|
||||
wire2 = f.getvalue()
|
||||
f.close()
|
||||
|
||||
return cmp(wire1, wire2)
|
@ -1,60 +0,0 @@
|
||||
# Copyright (C) 2006, 2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.exception
|
||||
|
||||
class DHCID(dns.rdata.Rdata):
|
||||
"""DHCID record
|
||||
|
||||
@ivar data: the data (the content of the RR is opaque as far as the
|
||||
DNS is concerned)
|
||||
@type data: string
|
||||
@see: RFC 4701"""
|
||||
|
||||
__slots__ = ['data']
|
||||
|
||||
def __init__(self, rdclass, rdtype, data):
|
||||
super(DHCID, self).__init__(rdclass, rdtype)
|
||||
self.data = data
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
return dns.rdata._base64ify(self.data)
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
chunks = []
|
||||
while 1:
|
||||
t = tok.get().unescape()
|
||||
if t.is_eol_or_eof():
|
||||
break
|
||||
if not t.is_identifier():
|
||||
raise dns.exception.SyntaxError
|
||||
chunks.append(t.value)
|
||||
b64 = ''.join(chunks)
|
||||
data = b64.decode('base64_codec')
|
||||
return cls(rdclass, rdtype, data)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
file.write(self.data)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
data = wire[current : current + rdlen]
|
||||
return cls(rdclass, rdtype, data)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
return cmp(self.data, other.data)
|
@ -1,159 +0,0 @@
|
||||
# Copyright (C) 2006, 2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import cStringIO
|
||||
import struct
|
||||
|
||||
import dns.exception
|
||||
import dns.inet
|
||||
import dns.name
|
||||
|
||||
class IPSECKEY(dns.rdata.Rdata):
|
||||
"""IPSECKEY record
|
||||
|
||||
@ivar precedence: the precedence for this key data
|
||||
@type precedence: int
|
||||
@ivar gateway_type: the gateway type
|
||||
@type gateway_type: int
|
||||
@ivar algorithm: the algorithm to use
|
||||
@type algorithm: int
|
||||
@ivar gateway: the public key
|
||||
@type gateway: None, IPv4 address, IPV6 address, or domain name
|
||||
@ivar key: the public key
|
||||
@type key: string
|
||||
@see: RFC 4025"""
|
||||
|
||||
__slots__ = ['precedence', 'gateway_type', 'algorithm', 'gateway', 'key']
|
||||
|
||||
def __init__(self, rdclass, rdtype, precedence, gateway_type, algorithm,
|
||||
gateway, key):
|
||||
super(IPSECKEY, self).__init__(rdclass, rdtype)
|
||||
if gateway_type == 0:
|
||||
if gateway != '.' and not gateway is None:
|
||||
raise SyntaxError('invalid gateway for gateway type 0')
|
||||
gateway = None
|
||||
elif gateway_type == 1:
|
||||
# check that it's OK
|
||||
junk = dns.inet.inet_pton(dns.inet.AF_INET, gateway)
|
||||
elif gateway_type == 2:
|
||||
# check that it's OK
|
||||
junk = dns.inet.inet_pton(dns.inet.AF_INET6, gateway)
|
||||
elif gateway_type == 3:
|
||||
pass
|
||||
else:
|
||||
raise SyntaxError('invalid IPSECKEY gateway type: %d' % gateway_type)
|
||||
self.precedence = precedence
|
||||
self.gateway_type = gateway_type
|
||||
self.algorithm = algorithm
|
||||
self.gateway = gateway
|
||||
self.key = key
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
if self.gateway_type == 0:
|
||||
gateway = '.'
|
||||
elif self.gateway_type == 1:
|
||||
gateway = self.gateway
|
||||
elif self.gateway_type == 2:
|
||||
gateway = self.gateway
|
||||
elif self.gateway_type == 3:
|
||||
gateway = str(self.gateway.choose_relativity(origin, relativize))
|
||||
else:
|
||||
raise ValueError('invalid gateway type')
|
||||
return '%d %d %d %s %s' % (self.precedence, self.gateway_type,
|
||||
self.algorithm, gateway,
|
||||
dns.rdata._base64ify(self.key))
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
precedence = tok.get_uint8()
|
||||
gateway_type = tok.get_uint8()
|
||||
algorithm = tok.get_uint8()
|
||||
if gateway_type == 3:
|
||||
gateway = tok.get_name().choose_relativity(origin, relativize)
|
||||
else:
|
||||
gateway = tok.get_string()
|
||||
chunks = []
|
||||
while 1:
|
||||
t = tok.get().unescape()
|
||||
if t.is_eol_or_eof():
|
||||
break
|
||||
if not t.is_identifier():
|
||||
raise dns.exception.SyntaxError
|
||||
chunks.append(t.value)
|
||||
b64 = ''.join(chunks)
|
||||
key = b64.decode('base64_codec')
|
||||
return cls(rdclass, rdtype, precedence, gateway_type, algorithm,
|
||||
gateway, key)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
header = struct.pack("!BBB", self.precedence, self.gateway_type,
|
||||
self.algorithm)
|
||||
file.write(header)
|
||||
if self.gateway_type == 0:
|
||||
pass
|
||||
elif self.gateway_type == 1:
|
||||
file.write(dns.inet.inet_pton(dns.inet.AF_INET, self.gateway))
|
||||
elif self.gateway_type == 2:
|
||||
file.write(dns.inet.inet_pton(dns.inet.AF_INET6, self.gateway))
|
||||
elif self.gateway_type == 3:
|
||||
self.gateway.to_wire(file, None, origin)
|
||||
else:
|
||||
raise ValueError('invalid gateway type')
|
||||
file.write(self.key)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
if rdlen < 3:
|
||||
raise dns.exception.FormError
|
||||
header = struct.unpack('!BBB', wire[current : current + 3])
|
||||
gateway_type = header[1]
|
||||
current += 3
|
||||
rdlen -= 3
|
||||
if gateway_type == 0:
|
||||
gateway = None
|
||||
elif gateway_type == 1:
|
||||
gateway = dns.inet.inet_ntop(dns.inet.AF_INET,
|
||||
wire[current : current + 4])
|
||||
current += 4
|
||||
rdlen -= 4
|
||||
elif gateway_type == 2:
|
||||
gateway = dns.inet.inet_ntop(dns.inet.AF_INET6,
|
||||
wire[current : current + 16])
|
||||
current += 16
|
||||
rdlen -= 16
|
||||
elif gateway_type == 3:
|
||||
(gateway, cused) = dns.name.from_wire(wire[: current + rdlen],
|
||||
current)
|
||||
current += cused
|
||||
rdlen -= cused
|
||||
else:
|
||||
raise dns.exception.FormError('invalid IPSECKEY gateway type')
|
||||
key = wire[current : current + rdlen]
|
||||
return cls(rdclass, rdtype, header[0], gateway_type, header[2],
|
||||
gateway, key)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
f = cStringIO.StringIO()
|
||||
self.to_wire(f)
|
||||
wire1 = f.getvalue()
|
||||
f.seek(0)
|
||||
f.truncate()
|
||||
other.to_wire(f)
|
||||
wire2 = f.getvalue()
|
||||
f.close()
|
||||
|
||||
return cmp(wire1, wire2)
|
@ -1,20 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.rdtypes.mxbase
|
||||
|
||||
class KX(dns.rdtypes.mxbase.UncompressedMX):
|
||||
"""KX record"""
|
||||
pass
|
@ -1,132 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import struct
|
||||
|
||||
import dns.exception
|
||||
import dns.name
|
||||
import dns.rdata
|
||||
|
||||
def _write_string(file, s):
|
||||
l = len(s)
|
||||
assert l < 256
|
||||
byte = chr(l)
|
||||
file.write(byte)
|
||||
file.write(s)
|
||||
|
||||
class NAPTR(dns.rdata.Rdata):
|
||||
"""NAPTR record
|
||||
|
||||
@ivar order: order
|
||||
@type order: int
|
||||
@ivar preference: preference
|
||||
@type preference: int
|
||||
@ivar flags: flags
|
||||
@type flags: string
|
||||
@ivar service: service
|
||||
@type service: string
|
||||
@ivar regexp: regular expression
|
||||
@type regexp: string
|
||||
@ivar replacement: replacement name
|
||||
@type replacement: dns.name.Name object
|
||||
@see: RFC 3403"""
|
||||
|
||||
__slots__ = ['order', 'preference', 'flags', 'service', 'regexp',
|
||||
'replacement']
|
||||
|
||||
def __init__(self, rdclass, rdtype, order, preference, flags, service,
|
||||
regexp, replacement):
|
||||
super(NAPTR, self).__init__(rdclass, rdtype)
|
||||
self.order = order
|
||||
self.preference = preference
|
||||
self.flags = flags
|
||||
self.service = service
|
||||
self.regexp = regexp
|
||||
self.replacement = replacement
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
replacement = self.replacement.choose_relativity(origin, relativize)
|
||||
return '%d %d "%s" "%s" "%s" %s' % \
|
||||
(self.order, self.preference,
|
||||
dns.rdata._escapify(self.flags),
|
||||
dns.rdata._escapify(self.service),
|
||||
dns.rdata._escapify(self.regexp),
|
||||
self.replacement)
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
order = tok.get_uint16()
|
||||
preference = tok.get_uint16()
|
||||
flags = tok.get_string()
|
||||
service = tok.get_string()
|
||||
regexp = tok.get_string()
|
||||
replacement = tok.get_name()
|
||||
replacement = replacement.choose_relativity(origin, relativize)
|
||||
tok.get_eol()
|
||||
return cls(rdclass, rdtype, order, preference, flags, service,
|
||||
regexp, replacement)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
two_ints = struct.pack("!HH", self.order, self.preference)
|
||||
file.write(two_ints)
|
||||
_write_string(file, self.flags)
|
||||
_write_string(file, self.service)
|
||||
_write_string(file, self.regexp)
|
||||
self.replacement.to_wire(file, compress, origin)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
(order, preference) = struct.unpack('!HH', wire[current : current + 4])
|
||||
current += 4
|
||||
rdlen -= 4
|
||||
strings = []
|
||||
for i in xrange(3):
|
||||
l = ord(wire[current])
|
||||
current += 1
|
||||
rdlen -= 1
|
||||
if l > rdlen or rdlen < 0:
|
||||
raise dns.exception.FormError
|
||||
s = wire[current : current + l]
|
||||
current += l
|
||||
rdlen -= l
|
||||
strings.append(s)
|
||||
(replacement, cused) = dns.name.from_wire(wire[: current + rdlen],
|
||||
current)
|
||||
if cused != rdlen:
|
||||
raise dns.exception.FormError
|
||||
if not origin is None:
|
||||
replacement = replacement.relativize(origin)
|
||||
return cls(rdclass, rdtype, order, preference, strings[0], strings[1],
|
||||
strings[2], replacement)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def choose_relativity(self, origin = None, relativize = True):
|
||||
self.replacement = self.replacement.choose_relativity(origin,
|
||||
relativize)
|
||||
|
||||
def _cmp(self, other):
|
||||
sp = struct.pack("!HH", self.order, self.preference)
|
||||
op = struct.pack("!HH", other.order, other.preference)
|
||||
v = cmp(sp, op)
|
||||
if v == 0:
|
||||
v = cmp(self.flags, other.flags)
|
||||
if v == 0:
|
||||
v = cmp(self.service, other.service)
|
||||
if v == 0:
|
||||
v = cmp(self.regexp, other.regexp)
|
||||
if v == 0:
|
||||
v = cmp(self.replacement, other.replacement)
|
||||
return v
|
@ -1,59 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.exception
|
||||
import dns.rdata
|
||||
import dns.tokenizer
|
||||
|
||||
class NSAP(dns.rdata.Rdata):
|
||||
"""NSAP record.
|
||||
|
||||
@ivar address: a NASP
|
||||
@type address: string
|
||||
@see: RFC 1706"""
|
||||
|
||||
__slots__ = ['address']
|
||||
|
||||
def __init__(self, rdclass, rdtype, address):
|
||||
super(NSAP, self).__init__(rdclass, rdtype)
|
||||
self.address = address
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
return "0x%s" % self.address.encode('hex_codec')
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
address = tok.get_string()
|
||||
t = tok.get_eol()
|
||||
if address[0:2] != '0x':
|
||||
raise dns.exception.SyntaxError('string does not start with 0x')
|
||||
address = address[2:].replace('.', '')
|
||||
if len(address) % 2 != 0:
|
||||
raise dns.exception.SyntaxError('hexstring has odd length')
|
||||
address = address.decode('hex_codec')
|
||||
return cls(rdclass, rdtype, address)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
file.write(self.address)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
address = wire[current : current + rdlen]
|
||||
return cls(rdclass, rdtype, address)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
return cmp(self.address, other.address)
|
@ -1,20 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import dns.rdtypes.nsbase
|
||||
|
||||
class NSAP_PTR(dns.rdtypes.nsbase.UncompressedNS):
|
||||
"""NSAP-PTR record"""
|
||||
pass
|
@ -1,97 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import struct
|
||||
|
||||
import dns.exception
|
||||
import dns.rdata
|
||||
import dns.name
|
||||
|
||||
class PX(dns.rdata.Rdata):
|
||||
"""PX record.
|
||||
|
||||
@ivar preference: the preference value
|
||||
@type preference: int
|
||||
@ivar map822: the map822 name
|
||||
@type map822: dns.name.Name object
|
||||
@ivar mapx400: the mapx400 name
|
||||
@type mapx400: dns.name.Name object
|
||||
@see: RFC 2163"""
|
||||
|
||||
__slots__ = ['preference', 'map822', 'mapx400']
|
||||
|
||||
def __init__(self, rdclass, rdtype, preference, map822, mapx400):
|
||||
super(PX, self).__init__(rdclass, rdtype)
|
||||
self.preference = preference
|
||||
self.map822 = map822
|
||||
self.mapx400 = mapx400
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
map822 = self.map822.choose_relativity(origin, relativize)
|
||||
mapx400 = self.mapx400.choose_relativity(origin, relativize)
|
||||
return '%d %s %s' % (self.preference, map822, mapx400)
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
preference = tok.get_uint16()
|
||||
map822 = tok.get_name()
|
||||
map822 = map822.choose_relativity(origin, relativize)
|
||||
mapx400 = tok.get_name(None)
|
||||
mapx400 = mapx400.choose_relativity(origin, relativize)
|
||||
tok.get_eol()
|
||||
return cls(rdclass, rdtype, preference, map822, mapx400)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
pref = struct.pack("!H", self.preference)
|
||||
file.write(pref)
|
||||
self.map822.to_wire(file, None, origin)
|
||||
self.mapx400.to_wire(file, None, origin)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
(preference, ) = struct.unpack('!H', wire[current : current + 2])
|
||||
current += 2
|
||||
rdlen -= 2
|
||||
(map822, cused) = dns.name.from_wire(wire[: current + rdlen],
|
||||
current)
|
||||
if cused > rdlen:
|
||||
raise dns.exception.FormError
|
||||
current += cused
|
||||
rdlen -= cused
|
||||
if not origin is None:
|
||||
map822 = map822.relativize(origin)
|
||||
(mapx400, cused) = dns.name.from_wire(wire[: current + rdlen],
|
||||
current)
|
||||
if cused != rdlen:
|
||||
raise dns.exception.FormError
|
||||
if not origin is None:
|
||||
mapx400 = mapx400.relativize(origin)
|
||||
return cls(rdclass, rdtype, preference, map822, mapx400)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def choose_relativity(self, origin = None, relativize = True):
|
||||
self.map822 = self.map822.choose_relativity(origin, relativize)
|
||||
self.mapx400 = self.mapx400.choose_relativity(origin, relativize)
|
||||
|
||||
def _cmp(self, other):
|
||||
sp = struct.pack("!H", self.preference)
|
||||
op = struct.pack("!H", other.preference)
|
||||
v = cmp(sp, op)
|
||||
if v == 0:
|
||||
v = cmp(self.map822, other.map822)
|
||||
if v == 0:
|
||||
v = cmp(self.mapx400, other.mapx400)
|
||||
return v
|
@ -1,89 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import struct
|
||||
|
||||
import dns.exception
|
||||
import dns.rdata
|
||||
import dns.name
|
||||
|
||||
class SRV(dns.rdata.Rdata):
|
||||
"""SRV record
|
||||
|
||||
@ivar priority: the priority
|
||||
@type priority: int
|
||||
@ivar weight: the weight
|
||||
@type weight: int
|
||||
@ivar port: the port of the service
|
||||
@type port: int
|
||||
@ivar target: the target host
|
||||
@type target: dns.name.Name object
|
||||
@see: RFC 2782"""
|
||||
|
||||
__slots__ = ['priority', 'weight', 'port', 'target']
|
||||
|
||||
def __init__(self, rdclass, rdtype, priority, weight, port, target):
|
||||
super(SRV, self).__init__(rdclass, rdtype)
|
||||
self.priority = priority
|
||||
self.weight = weight
|
||||
self.port = port
|
||||
self.target = target
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
target = self.target.choose_relativity(origin, relativize)
|
||||
return '%d %d %d %s' % (self.priority, self.weight, self.port,
|
||||
target)
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
priority = tok.get_uint16()
|
||||
weight = tok.get_uint16()
|
||||
port = tok.get_uint16()
|
||||
target = tok.get_name(None)
|
||||
target = target.choose_relativity(origin, relativize)
|
||||
tok.get_eol()
|
||||
return cls(rdclass, rdtype, priority, weight, port, target)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
three_ints = struct.pack("!HHH", self.priority, self.weight, self.port)
|
||||
file.write(three_ints)
|
||||
self.target.to_wire(file, compress, origin)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
(priority, weight, port) = struct.unpack('!HHH',
|
||||
wire[current : current + 6])
|
||||
current += 6
|
||||
rdlen -= 6
|
||||
(target, cused) = dns.name.from_wire(wire[: current + rdlen],
|
||||
current)
|
||||
if cused != rdlen:
|
||||
raise dns.exception.FormError
|
||||
if not origin is None:
|
||||
target = target.relativize(origin)
|
||||
return cls(rdclass, rdtype, priority, weight, port, target)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def choose_relativity(self, origin = None, relativize = True):
|
||||
self.target = self.target.choose_relativity(origin, relativize)
|
||||
|
||||
def _cmp(self, other):
|
||||
sp = struct.pack("!HHH", self.priority, self.weight, self.port)
|
||||
op = struct.pack("!HHH", other.priority, other.weight, other.port)
|
||||
v = cmp(sp, op)
|
||||
if v == 0:
|
||||
v = cmp(self.target, other.target)
|
||||
return v
|
@ -1,113 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import socket
|
||||
import struct
|
||||
|
||||
import dns.ipv4
|
||||
import dns.rdata
|
||||
|
||||
_proto_tcp = socket.getprotobyname('tcp')
|
||||
_proto_udp = socket.getprotobyname('udp')
|
||||
|
||||
class WKS(dns.rdata.Rdata):
|
||||
"""WKS record
|
||||
|
||||
@ivar address: the address
|
||||
@type address: string
|
||||
@ivar protocol: the protocol
|
||||
@type protocol: int
|
||||
@ivar bitmap: the bitmap
|
||||
@type bitmap: string
|
||||
@see: RFC 1035"""
|
||||
|
||||
__slots__ = ['address', 'protocol', 'bitmap']
|
||||
|
||||
def __init__(self, rdclass, rdtype, address, protocol, bitmap):
|
||||
super(WKS, self).__init__(rdclass, rdtype)
|
||||
self.address = address
|
||||
self.protocol = protocol
|
||||
self.bitmap = bitmap
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
bits = []
|
||||
for i in xrange(0, len(self.bitmap)):
|
||||
byte = ord(self.bitmap[i])
|
||||
for j in xrange(0, 8):
|
||||
if byte & (0x80 >> j):
|
||||
bits.append(str(i * 8 + j))
|
||||
text = ' '.join(bits)
|
||||
return '%s %d %s' % (self.address, self.protocol, text)
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
address = tok.get_string()
|
||||
protocol = tok.get_string()
|
||||
if protocol.isdigit():
|
||||
protocol = int(protocol)
|
||||
else:
|
||||
protocol = socket.getprotobyname(protocol)
|
||||
bitmap = []
|
||||
while 1:
|
||||
token = tok.get().unescape()
|
||||
if token.is_eol_or_eof():
|
||||
break
|
||||
if token.value.isdigit():
|
||||
serv = int(token.value)
|
||||
else:
|
||||
if protocol != _proto_udp and protocol != _proto_tcp:
|
||||
raise NotImplementedError("protocol must be TCP or UDP")
|
||||
if protocol == _proto_udp:
|
||||
protocol_text = "udp"
|
||||
else:
|
||||
protocol_text = "tcp"
|
||||
serv = socket.getservbyname(token.value, protocol_text)
|
||||
i = serv // 8
|
||||
l = len(bitmap)
|
||||
if l < i + 1:
|
||||
for j in xrange(l, i + 1):
|
||||
bitmap.append('\x00')
|
||||
bitmap[i] = chr(ord(bitmap[i]) | (0x80 >> (serv % 8)))
|
||||
bitmap = dns.rdata._truncate_bitmap(bitmap)
|
||||
return cls(rdclass, rdtype, address, protocol, bitmap)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
file.write(dns.ipv4.inet_aton(self.address))
|
||||
protocol = struct.pack('!B', self.protocol)
|
||||
file.write(protocol)
|
||||
file.write(self.bitmap)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
address = dns.ipv4.inet_ntoa(wire[current : current + 4])
|
||||
protocol, = struct.unpack('!B', wire[current + 4 : current + 5])
|
||||
current += 5
|
||||
rdlen -= 5
|
||||
bitmap = wire[current : current + rdlen]
|
||||
return cls(rdclass, rdtype, address, protocol, bitmap)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
sa = dns.ipv4.inet_aton(self.address)
|
||||
oa = dns.ipv4.inet_aton(other.address)
|
||||
v = cmp(sa, oa)
|
||||
if v == 0:
|
||||
sp = struct.pack('!B', self.protocol)
|
||||
op = struct.pack('!B', other.protocol)
|
||||
v = cmp(sp, op)
|
||||
if v == 0:
|
||||
v = cmp(self.bitmap, other.bitmap)
|
||||
return v
|
@ -1,30 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""Class IN rdata type classes."""
|
||||
|
||||
__all__ = [
|
||||
'A',
|
||||
'AAAA',
|
||||
'APL',
|
||||
'DHCID',
|
||||
'KX',
|
||||
'NAPTR',
|
||||
'NSAP',
|
||||
'NSAP_PTR',
|
||||
'PX',
|
||||
'SRV',
|
||||
'WKS',
|
||||
]
|
@ -1,25 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""DNS rdata type classes"""
|
||||
|
||||
__all__ = [
|
||||
'ANY',
|
||||
'IN',
|
||||
'mxbase',
|
||||
'nsbase',
|
||||
'sigbase',
|
||||
'keybase',
|
||||
]
|
@ -1,92 +0,0 @@
|
||||
# Copyright (C) 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import struct
|
||||
|
||||
import dns.rdata
|
||||
import dns.rdatatype
|
||||
|
||||
class DSBase(dns.rdata.Rdata):
|
||||
"""Base class for rdata that is like a DS record
|
||||
|
||||
@ivar key_tag: the key tag
|
||||
@type key_tag: int
|
||||
@ivar algorithm: the algorithm
|
||||
@type algorithm: int
|
||||
@ivar digest_type: the digest type
|
||||
@type digest_type: int
|
||||
@ivar digest: the digest
|
||||
@type digest: int
|
||||
@see: draft-ietf-dnsext-delegation-signer-14.txt"""
|
||||
|
||||
__slots__ = ['key_tag', 'algorithm', 'digest_type', 'digest']
|
||||
|
||||
def __init__(self, rdclass, rdtype, key_tag, algorithm, digest_type,
|
||||
digest):
|
||||
super(DSBase, self).__init__(rdclass, rdtype)
|
||||
self.key_tag = key_tag
|
||||
self.algorithm = algorithm
|
||||
self.digest_type = digest_type
|
||||
self.digest = digest
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
return '%d %d %d %s' % (self.key_tag, self.algorithm,
|
||||
self.digest_type,
|
||||
dns.rdata._hexify(self.digest,
|
||||
chunksize=128))
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
key_tag = tok.get_uint16()
|
||||
algorithm = tok.get_uint8()
|
||||
digest_type = tok.get_uint8()
|
||||
chunks = []
|
||||
while 1:
|
||||
t = tok.get().unescape()
|
||||
if t.is_eol_or_eof():
|
||||
break
|
||||
if not t.is_identifier():
|
||||
raise dns.exception.SyntaxError
|
||||
chunks.append(t.value)
|
||||
digest = ''.join(chunks)
|
||||
digest = digest.decode('hex_codec')
|
||||
return cls(rdclass, rdtype, key_tag, algorithm, digest_type,
|
||||
digest)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
header = struct.pack("!HBB", self.key_tag, self.algorithm,
|
||||
self.digest_type)
|
||||
file.write(header)
|
||||
file.write(self.digest)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
header = struct.unpack("!HBB", wire[current : current + 4])
|
||||
current += 4
|
||||
rdlen -= 4
|
||||
digest = wire[current : current + rdlen]
|
||||
return cls(rdclass, rdtype, header[0], header[1], header[2], digest)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
hs = struct.pack("!HBB", self.key_tag, self.algorithm,
|
||||
self.digest_type)
|
||||
ho = struct.pack("!HBB", other.key_tag, other.algorithm,
|
||||
other.digest_type)
|
||||
v = cmp(hs, ho)
|
||||
if v == 0:
|
||||
v = cmp(self.digest, other.digest)
|
||||
return v
|
@ -1,149 +0,0 @@
|
||||
# Copyright (C) 2004-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import struct
|
||||
|
||||
import dns.exception
|
||||
import dns.dnssec
|
||||
import dns.rdata
|
||||
|
||||
_flags_from_text = {
|
||||
'NOCONF': (0x4000, 0xC000),
|
||||
'NOAUTH': (0x8000, 0xC000),
|
||||
'NOKEY': (0xC000, 0xC000),
|
||||
'FLAG2': (0x2000, 0x2000),
|
||||
'EXTEND': (0x1000, 0x1000),
|
||||
'FLAG4': (0x0800, 0x0800),
|
||||
'FLAG5': (0x0400, 0x0400),
|
||||
'USER': (0x0000, 0x0300),
|
||||
'ZONE': (0x0100, 0x0300),
|
||||
'HOST': (0x0200, 0x0300),
|
||||
'NTYP3': (0x0300, 0x0300),
|
||||
'FLAG8': (0x0080, 0x0080),
|
||||
'FLAG9': (0x0040, 0x0040),
|
||||
'FLAG10': (0x0020, 0x0020),
|
||||
'FLAG11': (0x0010, 0x0010),
|
||||
'SIG0': (0x0000, 0x000f),
|
||||
'SIG1': (0x0001, 0x000f),
|
||||
'SIG2': (0x0002, 0x000f),
|
||||
'SIG3': (0x0003, 0x000f),
|
||||
'SIG4': (0x0004, 0x000f),
|
||||
'SIG5': (0x0005, 0x000f),
|
||||
'SIG6': (0x0006, 0x000f),
|
||||
'SIG7': (0x0007, 0x000f),
|
||||
'SIG8': (0x0008, 0x000f),
|
||||
'SIG9': (0x0009, 0x000f),
|
||||
'SIG10': (0x000a, 0x000f),
|
||||
'SIG11': (0x000b, 0x000f),
|
||||
'SIG12': (0x000c, 0x000f),
|
||||
'SIG13': (0x000d, 0x000f),
|
||||
'SIG14': (0x000e, 0x000f),
|
||||
'SIG15': (0x000f, 0x000f),
|
||||
}
|
||||
|
||||
_protocol_from_text = {
|
||||
'NONE' : 0,
|
||||
'TLS' : 1,
|
||||
'EMAIL' : 2,
|
||||
'DNSSEC' : 3,
|
||||
'IPSEC' : 4,
|
||||
'ALL' : 255,
|
||||
}
|
||||
|
||||
class KEYBase(dns.rdata.Rdata):
|
||||
"""KEY-like record base
|
||||
|
||||
@ivar flags: the key flags
|
||||
@type flags: int
|
||||
@ivar protocol: the protocol for which this key may be used
|
||||
@type protocol: int
|
||||
@ivar algorithm: the algorithm used for the key
|
||||
@type algorithm: int
|
||||
@ivar key: the public key
|
||||
@type key: string"""
|
||||
|
||||
__slots__ = ['flags', 'protocol', 'algorithm', 'key']
|
||||
|
||||
def __init__(self, rdclass, rdtype, flags, protocol, algorithm, key):
|
||||
super(KEYBase, self).__init__(rdclass, rdtype)
|
||||
self.flags = flags
|
||||
self.protocol = protocol
|
||||
self.algorithm = algorithm
|
||||
self.key = key
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
return '%d %d %d %s' % (self.flags, self.protocol, self.algorithm,
|
||||
dns.rdata._base64ify(self.key))
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
flags = tok.get_string()
|
||||
if flags.isdigit():
|
||||
flags = int(flags)
|
||||
else:
|
||||
flag_names = flags.split('|')
|
||||
flags = 0
|
||||
for flag in flag_names:
|
||||
v = _flags_from_text.get(flag)
|
||||
if v is None:
|
||||
raise dns.exception.SyntaxError('unknown flag %s' % flag)
|
||||
flags &= ~v[1]
|
||||
flags |= v[0]
|
||||
protocol = tok.get_string()
|
||||
if protocol.isdigit():
|
||||
protocol = int(protocol)
|
||||
else:
|
||||
protocol = _protocol_from_text.get(protocol)
|
||||
if protocol is None:
|
||||
raise dns.exception.SyntaxError('unknown protocol %s' % protocol)
|
||||
|
||||
algorithm = dns.dnssec.algorithm_from_text(tok.get_string())
|
||||
chunks = []
|
||||
while 1:
|
||||
t = tok.get().unescape()
|
||||
if t.is_eol_or_eof():
|
||||
break
|
||||
if not t.is_identifier():
|
||||
raise dns.exception.SyntaxError
|
||||
chunks.append(t.value)
|
||||
b64 = ''.join(chunks)
|
||||
key = b64.decode('base64_codec')
|
||||
return cls(rdclass, rdtype, flags, protocol, algorithm, key)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
header = struct.pack("!HBB", self.flags, self.protocol, self.algorithm)
|
||||
file.write(header)
|
||||
file.write(self.key)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
if rdlen < 4:
|
||||
raise dns.exception.FormError
|
||||
header = struct.unpack('!HBB', wire[current : current + 4])
|
||||
current += 4
|
||||
rdlen -= 4
|
||||
key = wire[current : current + rdlen]
|
||||
return cls(rdclass, rdtype, header[0], header[1], header[2],
|
||||
key)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
hs = struct.pack("!HBB", self.flags, self.protocol, self.algorithm)
|
||||
ho = struct.pack("!HBB", other.flags, other.protocol, other.algorithm)
|
||||
v = cmp(hs, ho)
|
||||
if v == 0:
|
||||
v = cmp(self.key, other.key)
|
||||
return v
|
@ -1,105 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""MX-like base classes."""
|
||||
|
||||
import cStringIO
|
||||
import struct
|
||||
|
||||
import dns.exception
|
||||
import dns.rdata
|
||||
import dns.name
|
||||
|
||||
class MXBase(dns.rdata.Rdata):
|
||||
"""Base class for rdata that is like an MX record.
|
||||
|
||||
@ivar preference: the preference value
|
||||
@type preference: int
|
||||
@ivar exchange: the exchange name
|
||||
@type exchange: dns.name.Name object"""
|
||||
|
||||
__slots__ = ['preference', 'exchange']
|
||||
|
||||
def __init__(self, rdclass, rdtype, preference, exchange):
|
||||
super(MXBase, self).__init__(rdclass, rdtype)
|
||||
self.preference = preference
|
||||
self.exchange = exchange
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
exchange = self.exchange.choose_relativity(origin, relativize)
|
||||
return '%d %s' % (self.preference, exchange)
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
preference = tok.get_uint16()
|
||||
exchange = tok.get_name()
|
||||
exchange = exchange.choose_relativity(origin, relativize)
|
||||
tok.get_eol()
|
||||
return cls(rdclass, rdtype, preference, exchange)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
pref = struct.pack("!H", self.preference)
|
||||
file.write(pref)
|
||||
self.exchange.to_wire(file, compress, origin)
|
||||
|
||||
def to_digestable(self, origin = None):
|
||||
return struct.pack("!H", self.preference) + \
|
||||
self.exchange.to_digestable(origin)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
(preference, ) = struct.unpack('!H', wire[current : current + 2])
|
||||
current += 2
|
||||
rdlen -= 2
|
||||
(exchange, cused) = dns.name.from_wire(wire[: current + rdlen],
|
||||
current)
|
||||
if cused != rdlen:
|
||||
raise dns.exception.FormError
|
||||
if not origin is None:
|
||||
exchange = exchange.relativize(origin)
|
||||
return cls(rdclass, rdtype, preference, exchange)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def choose_relativity(self, origin = None, relativize = True):
|
||||
self.exchange = self.exchange.choose_relativity(origin, relativize)
|
||||
|
||||
def _cmp(self, other):
|
||||
sp = struct.pack("!H", self.preference)
|
||||
op = struct.pack("!H", other.preference)
|
||||
v = cmp(sp, op)
|
||||
if v == 0:
|
||||
v = cmp(self.exchange, other.exchange)
|
||||
return v
|
||||
|
||||
class UncompressedMX(MXBase):
|
||||
"""Base class for rdata that is like an MX record, but whose name
|
||||
is not compressed when converted to DNS wire format, and whose
|
||||
digestable form is not downcased."""
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
super(UncompressedMX, self).to_wire(file, None, origin)
|
||||
|
||||
def to_digestable(self, origin = None):
|
||||
f = cStringIO.StringIO()
|
||||
self.to_wire(f, None, origin)
|
||||
return f.getvalue()
|
||||
|
||||
class UncompressedDowncasingMX(MXBase):
|
||||
"""Base class for rdata that is like an MX record, but whose name
|
||||
is not compressed when convert to DNS wire format."""
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
super(UncompressedDowncasingMX, self).to_wire(file, None, origin)
|
@ -1,82 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""NS-like base classes."""
|
||||
|
||||
import cStringIO
|
||||
|
||||
import dns.exception
|
||||
import dns.rdata
|
||||
import dns.name
|
||||
|
||||
class NSBase(dns.rdata.Rdata):
|
||||
"""Base class for rdata that is like an NS record.
|
||||
|
||||
@ivar target: the target name of the rdata
|
||||
@type target: dns.name.Name object"""
|
||||
|
||||
__slots__ = ['target']
|
||||
|
||||
def __init__(self, rdclass, rdtype, target):
|
||||
super(NSBase, self).__init__(rdclass, rdtype)
|
||||
self.target = target
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
target = self.target.choose_relativity(origin, relativize)
|
||||
return str(target)
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
target = tok.get_name()
|
||||
target = target.choose_relativity(origin, relativize)
|
||||
tok.get_eol()
|
||||
return cls(rdclass, rdtype, target)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
self.target.to_wire(file, compress, origin)
|
||||
|
||||
def to_digestable(self, origin = None):
|
||||
return self.target.to_digestable(origin)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
(target, cused) = dns.name.from_wire(wire[: current + rdlen],
|
||||
current)
|
||||
if cused != rdlen:
|
||||
raise dns.exception.FormError
|
||||
if not origin is None:
|
||||
target = target.relativize(origin)
|
||||
return cls(rdclass, rdtype, target)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def choose_relativity(self, origin = None, relativize = True):
|
||||
self.target = self.target.choose_relativity(origin, relativize)
|
||||
|
||||
def _cmp(self, other):
|
||||
return cmp(self.target, other.target)
|
||||
|
||||
class UncompressedNS(NSBase):
|
||||
"""Base class for rdata that is like an NS record, but whose name
|
||||
is not compressed when convert to DNS wire format, and whose
|
||||
digestable form is not downcased."""
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
super(UncompressedNS, self).to_wire(file, None, origin)
|
||||
|
||||
def to_digestable(self, origin = None):
|
||||
f = cStringIO.StringIO()
|
||||
self.to_wire(f, None, origin)
|
||||
return f.getvalue()
|
@ -1,168 +0,0 @@
|
||||
# Copyright (C) 2004-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import calendar
|
||||
import struct
|
||||
import time
|
||||
|
||||
import dns.dnssec
|
||||
import dns.exception
|
||||
import dns.rdata
|
||||
import dns.rdatatype
|
||||
|
||||
class BadSigTime(dns.exception.DNSException):
|
||||
"""Raised when a SIG or RRSIG RR's time cannot be parsed."""
|
||||
pass
|
||||
|
||||
def sigtime_to_posixtime(what):
|
||||
if len(what) != 14:
|
||||
raise BadSigTime
|
||||
year = int(what[0:4])
|
||||
month = int(what[4:6])
|
||||
day = int(what[6:8])
|
||||
hour = int(what[8:10])
|
||||
minute = int(what[10:12])
|
||||
second = int(what[12:14])
|
||||
return calendar.timegm((year, month, day, hour, minute, second,
|
||||
0, 0, 0))
|
||||
|
||||
def posixtime_to_sigtime(what):
|
||||
return time.strftime('%Y%m%d%H%M%S', time.gmtime(what))
|
||||
|
||||
class SIGBase(dns.rdata.Rdata):
|
||||
"""SIG-like record base
|
||||
|
||||
@ivar type_covered: the rdata type this signature covers
|
||||
@type type_covered: int
|
||||
@ivar algorithm: the algorithm used for the sig
|
||||
@type algorithm: int
|
||||
@ivar labels: number of labels
|
||||
@type labels: int
|
||||
@ivar original_ttl: the original TTL
|
||||
@type original_ttl: long
|
||||
@ivar expiration: signature expiration time
|
||||
@type expiration: long
|
||||
@ivar inception: signature inception time
|
||||
@type inception: long
|
||||
@ivar key_tag: the key tag
|
||||
@type key_tag: int
|
||||
@ivar signer: the signer
|
||||
@type signer: dns.name.Name object
|
||||
@ivar signature: the signature
|
||||
@type signature: string"""
|
||||
|
||||
__slots__ = ['type_covered', 'algorithm', 'labels', 'original_ttl',
|
||||
'expiration', 'inception', 'key_tag', 'signer',
|
||||
'signature']
|
||||
|
||||
def __init__(self, rdclass, rdtype, type_covered, algorithm, labels,
|
||||
original_ttl, expiration, inception, key_tag, signer,
|
||||
signature):
|
||||
super(SIGBase, self).__init__(rdclass, rdtype)
|
||||
self.type_covered = type_covered
|
||||
self.algorithm = algorithm
|
||||
self.labels = labels
|
||||
self.original_ttl = original_ttl
|
||||
self.expiration = expiration
|
||||
self.inception = inception
|
||||
self.key_tag = key_tag
|
||||
self.signer = signer
|
||||
self.signature = signature
|
||||
|
||||
def covers(self):
|
||||
return self.type_covered
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
return '%s %d %d %d %s %s %d %s %s' % (
|
||||
dns.rdatatype.to_text(self.type_covered),
|
||||
self.algorithm,
|
||||
self.labels,
|
||||
self.original_ttl,
|
||||
posixtime_to_sigtime(self.expiration),
|
||||
posixtime_to_sigtime(self.inception),
|
||||
self.key_tag,
|
||||
self.signer,
|
||||
dns.rdata._base64ify(self.signature)
|
||||
)
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
type_covered = dns.rdatatype.from_text(tok.get_string())
|
||||
algorithm = dns.dnssec.algorithm_from_text(tok.get_string())
|
||||
labels = tok.get_int()
|
||||
original_ttl = tok.get_ttl()
|
||||
expiration = sigtime_to_posixtime(tok.get_string())
|
||||
inception = sigtime_to_posixtime(tok.get_string())
|
||||
key_tag = tok.get_int()
|
||||
signer = tok.get_name()
|
||||
signer = signer.choose_relativity(origin, relativize)
|
||||
chunks = []
|
||||
while 1:
|
||||
t = tok.get().unescape()
|
||||
if t.is_eol_or_eof():
|
||||
break
|
||||
if not t.is_identifier():
|
||||
raise dns.exception.SyntaxError
|
||||
chunks.append(t.value)
|
||||
b64 = ''.join(chunks)
|
||||
signature = b64.decode('base64_codec')
|
||||
return cls(rdclass, rdtype, type_covered, algorithm, labels,
|
||||
original_ttl, expiration, inception, key_tag, signer,
|
||||
signature)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
header = struct.pack('!HBBIIIH', self.type_covered,
|
||||
self.algorithm, self.labels,
|
||||
self.original_ttl, self.expiration,
|
||||
self.inception, self.key_tag)
|
||||
file.write(header)
|
||||
self.signer.to_wire(file, None, origin)
|
||||
file.write(self.signature)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
header = struct.unpack('!HBBIIIH', wire[current : current + 18])
|
||||
current += 18
|
||||
rdlen -= 18
|
||||
(signer, cused) = dns.name.from_wire(wire[: current + rdlen], current)
|
||||
current += cused
|
||||
rdlen -= cused
|
||||
if not origin is None:
|
||||
signer = signer.relativize(origin)
|
||||
signature = wire[current : current + rdlen]
|
||||
return cls(rdclass, rdtype, header[0], header[1], header[2],
|
||||
header[3], header[4], header[5], header[6], signer,
|
||||
signature)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def choose_relativity(self, origin = None, relativize = True):
|
||||
self.signer = self.signer.choose_relativity(origin, relativize)
|
||||
|
||||
def _cmp(self, other):
|
||||
hs = struct.pack('!HBBIIIH', self.type_covered,
|
||||
self.algorithm, self.labels,
|
||||
self.original_ttl, self.expiration,
|
||||
self.inception, self.key_tag)
|
||||
ho = struct.pack('!HBBIIIH', other.type_covered,
|
||||
other.algorithm, other.labels,
|
||||
other.original_ttl, other.expiration,
|
||||
other.inception, other.key_tag)
|
||||
v = cmp(hs, ho)
|
||||
if v == 0:
|
||||
v = cmp(self.signer, other.signer)
|
||||
if v == 0:
|
||||
v = cmp(self.signature, other.signature)
|
||||
return v
|
@ -1,87 +0,0 @@
|
||||
# Copyright (C) 2006, 2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""TXT-like base class."""
|
||||
|
||||
import dns.exception
|
||||
import dns.rdata
|
||||
import dns.tokenizer
|
||||
|
||||
class TXTBase(dns.rdata.Rdata):
|
||||
"""Base class for rdata that is like a TXT record
|
||||
|
||||
@ivar strings: the text strings
|
||||
@type strings: list of string
|
||||
@see: RFC 1035"""
|
||||
|
||||
__slots__ = ['strings']
|
||||
|
||||
def __init__(self, rdclass, rdtype, strings):
|
||||
super(TXTBase, self).__init__(rdclass, rdtype)
|
||||
if isinstance(strings, str):
|
||||
strings = [ strings ]
|
||||
self.strings = strings[:]
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
txt = ''
|
||||
prefix = ''
|
||||
for s in self.strings:
|
||||
txt += '%s"%s"' % (prefix, dns.rdata._escapify(s))
|
||||
prefix = ' '
|
||||
return txt
|
||||
|
||||
def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
|
||||
strings = []
|
||||
while 1:
|
||||
token = tok.get().unescape()
|
||||
if token.is_eol_or_eof():
|
||||
break
|
||||
if not (token.is_quoted_string() or token.is_identifier()):
|
||||
raise dns.exception.SyntaxError("expected a string")
|
||||
if len(token.value) > 255:
|
||||
raise dns.exception.SyntaxError("string too long")
|
||||
strings.append(token.value)
|
||||
if len(strings) == 0:
|
||||
raise dns.exception.UnexpectedEnd
|
||||
return cls(rdclass, rdtype, strings)
|
||||
|
||||
from_text = classmethod(from_text)
|
||||
|
||||
def to_wire(self, file, compress = None, origin = None):
|
||||
for s in self.strings:
|
||||
l = len(s)
|
||||
assert l < 256
|
||||
byte = chr(l)
|
||||
file.write(byte)
|
||||
file.write(s)
|
||||
|
||||
def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
|
||||
strings = []
|
||||
while rdlen > 0:
|
||||
l = ord(wire[current])
|
||||
current += 1
|
||||
rdlen -= 1
|
||||
if l > rdlen:
|
||||
raise dns.exception.FormError
|
||||
s = wire[current : current + l]
|
||||
current += l
|
||||
rdlen -= l
|
||||
strings.append(s)
|
||||
return cls(rdclass, rdtype, strings)
|
||||
|
||||
from_wire = classmethod(from_wire)
|
||||
|
||||
def _cmp(self, other):
|
||||
return cmp(self.strings, other.strings)
|
@ -1,324 +0,0 @@
|
||||
# Copyright (C) 2001-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""Help for building DNS wire format messages"""
|
||||
|
||||
import cStringIO
|
||||
import struct
|
||||
import random
|
||||
import time
|
||||
|
||||
import dns.exception
|
||||
import dns.tsig
|
||||
|
||||
QUESTION = 0
|
||||
ANSWER = 1
|
||||
AUTHORITY = 2
|
||||
ADDITIONAL = 3
|
||||
|
||||
class Renderer(object):
|
||||
"""Helper class for building DNS wire-format messages.
|
||||
|
||||
Most applications can use the higher-level L{dns.message.Message}
|
||||
class and its to_wire() method to generate wire-format messages.
|
||||
This class is for those applications which need finer control
|
||||
over the generation of messages.
|
||||
|
||||
Typical use::
|
||||
|
||||
r = dns.renderer.Renderer(id=1, flags=0x80, max_size=512)
|
||||
r.add_question(qname, qtype, qclass)
|
||||
r.add_rrset(dns.renderer.ANSWER, rrset_1)
|
||||
r.add_rrset(dns.renderer.ANSWER, rrset_2)
|
||||
r.add_rrset(dns.renderer.AUTHORITY, ns_rrset)
|
||||
r.add_edns(0, 0, 4096)
|
||||
r.add_rrset(dns.renderer.ADDTIONAL, ad_rrset_1)
|
||||
r.add_rrset(dns.renderer.ADDTIONAL, ad_rrset_2)
|
||||
r.write_header()
|
||||
r.add_tsig(keyname, secret, 300, 1, 0, '', request_mac)
|
||||
wire = r.get_wire()
|
||||
|
||||
@ivar output: where rendering is written
|
||||
@type output: cStringIO.StringIO object
|
||||
@ivar id: the message id
|
||||
@type id: int
|
||||
@ivar flags: the message flags
|
||||
@type flags: int
|
||||
@ivar max_size: the maximum size of the message
|
||||
@type max_size: int
|
||||
@ivar origin: the origin to use when rendering relative names
|
||||
@type origin: dns.name.Name object
|
||||
@ivar compress: the compression table
|
||||
@type compress: dict
|
||||
@ivar section: the section currently being rendered
|
||||
@type section: int (dns.renderer.QUESTION, dns.renderer.ANSWER,
|
||||
dns.renderer.AUTHORITY, or dns.renderer.ADDITIONAL)
|
||||
@ivar counts: list of the number of RRs in each section
|
||||
@type counts: int list of length 4
|
||||
@ivar mac: the MAC of the rendered message (if TSIG was used)
|
||||
@type mac: string
|
||||
"""
|
||||
|
||||
def __init__(self, id=None, flags=0, max_size=65535, origin=None):
|
||||
"""Initialize a new renderer.
|
||||
|
||||
@param id: the message id
|
||||
@type id: int
|
||||
@param flags: the DNS message flags
|
||||
@type flags: int
|
||||
@param max_size: the maximum message size; the default is 65535.
|
||||
If rendering results in a message greater than I{max_size},
|
||||
then L{dns.exception.TooBig} will be raised.
|
||||
@type max_size: int
|
||||
@param origin: the origin to use when rendering relative names
|
||||
@type origin: dns.name.Namem or None.
|
||||
"""
|
||||
|
||||
self.output = cStringIO.StringIO()
|
||||
if id is None:
|
||||
self.id = random.randint(0, 65535)
|
||||
else:
|
||||
self.id = id
|
||||
self.flags = flags
|
||||
self.max_size = max_size
|
||||
self.origin = origin
|
||||
self.compress = {}
|
||||
self.section = QUESTION
|
||||
self.counts = [0, 0, 0, 0]
|
||||
self.output.write('\x00' * 12)
|
||||
self.mac = ''
|
||||
|
||||
def _rollback(self, where):
|
||||
"""Truncate the output buffer at offset I{where}, and remove any
|
||||
compression table entries that pointed beyond the truncation
|
||||
point.
|
||||
|
||||
@param where: the offset
|
||||
@type where: int
|
||||
"""
|
||||
|
||||
self.output.seek(where)
|
||||
self.output.truncate()
|
||||
keys_to_delete = []
|
||||
for k, v in self.compress.iteritems():
|
||||
if v >= where:
|
||||
keys_to_delete.append(k)
|
||||
for k in keys_to_delete:
|
||||
del self.compress[k]
|
||||
|
||||
def _set_section(self, section):
|
||||
"""Set the renderer's current section.
|
||||
|
||||
Sections must be rendered order: QUESTION, ANSWER, AUTHORITY,
|
||||
ADDITIONAL. Sections may be empty.
|
||||
|
||||
@param section: the section
|
||||
@type section: int
|
||||
@raises dns.exception.FormError: an attempt was made to set
|
||||
a section value less than the current section.
|
||||
"""
|
||||
|
||||
if self.section != section:
|
||||
if self.section > section:
|
||||
raise dns.exception.FormError
|
||||
self.section = section
|
||||
|
||||
def add_question(self, qname, rdtype, rdclass=dns.rdataclass.IN):
|
||||
"""Add a question to the message.
|
||||
|
||||
@param qname: the question name
|
||||
@type qname: dns.name.Name
|
||||
@param rdtype: the question rdata type
|
||||
@type rdtype: int
|
||||
@param rdclass: the question rdata class
|
||||
@type rdclass: int
|
||||
"""
|
||||
|
||||
self._set_section(QUESTION)
|
||||
before = self.output.tell()
|
||||
qname.to_wire(self.output, self.compress, self.origin)
|
||||
self.output.write(struct.pack("!HH", rdtype, rdclass))
|
||||
after = self.output.tell()
|
||||
if after >= self.max_size:
|
||||
self._rollback(before)
|
||||
raise dns.exception.TooBig
|
||||
self.counts[QUESTION] += 1
|
||||
|
||||
def add_rrset(self, section, rrset, **kw):
|
||||
"""Add the rrset to the specified section.
|
||||
|
||||
Any keyword arguments are passed on to the rdataset's to_wire()
|
||||
routine.
|
||||
|
||||
@param section: the section
|
||||
@type section: int
|
||||
@param rrset: the rrset
|
||||
@type rrset: dns.rrset.RRset object
|
||||
"""
|
||||
|
||||
self._set_section(section)
|
||||
before = self.output.tell()
|
||||
n = rrset.to_wire(self.output, self.compress, self.origin, **kw)
|
||||
after = self.output.tell()
|
||||
if after >= self.max_size:
|
||||
self._rollback(before)
|
||||
raise dns.exception.TooBig
|
||||
self.counts[section] += n
|
||||
|
||||
def add_rdataset(self, section, name, rdataset, **kw):
|
||||
"""Add the rdataset to the specified section, using the specified
|
||||
name as the owner name.
|
||||
|
||||
Any keyword arguments are passed on to the rdataset's to_wire()
|
||||
routine.
|
||||
|
||||
@param section: the section
|
||||
@type section: int
|
||||
@param name: the owner name
|
||||
@type name: dns.name.Name object
|
||||
@param rdataset: the rdataset
|
||||
@type rdataset: dns.rdataset.Rdataset object
|
||||
"""
|
||||
|
||||
self._set_section(section)
|
||||
before = self.output.tell()
|
||||
n = rdataset.to_wire(name, self.output, self.compress, self.origin,
|
||||
**kw)
|
||||
after = self.output.tell()
|
||||
if after >= self.max_size:
|
||||
self._rollback(before)
|
||||
raise dns.exception.TooBig
|
||||
self.counts[section] += n
|
||||
|
||||
def add_edns(self, edns, ednsflags, payload, options=None):
|
||||
"""Add an EDNS OPT record to the message.
|
||||
|
||||
@param edns: The EDNS level to use.
|
||||
@type edns: int
|
||||
@param ednsflags: EDNS flag values.
|
||||
@type ednsflags: int
|
||||
@param payload: The EDNS sender's payload field, which is the maximum
|
||||
size of UDP datagram the sender can handle.
|
||||
@type payload: int
|
||||
@param options: The EDNS options list
|
||||
@type options: list of dns.edns.Option instances
|
||||
@see: RFC 2671
|
||||
"""
|
||||
|
||||
# make sure the EDNS version in ednsflags agrees with edns
|
||||
ednsflags &= 0xFF00FFFFL
|
||||
ednsflags |= (edns << 16)
|
||||
self._set_section(ADDITIONAL)
|
||||
before = self.output.tell()
|
||||
self.output.write(struct.pack('!BHHIH', 0, dns.rdatatype.OPT, payload,
|
||||
ednsflags, 0))
|
||||
if not options is None:
|
||||
lstart = self.output.tell()
|
||||
for opt in options:
|
||||
stuff = struct.pack("!HH", opt.otype, 0)
|
||||
self.output.write(stuff)
|
||||
start = self.output.tell()
|
||||
opt.to_wire(self.output)
|
||||
end = self.output.tell()
|
||||
assert end - start < 65536
|
||||
self.output.seek(start - 2)
|
||||
stuff = struct.pack("!H", end - start)
|
||||
self.output.write(stuff)
|
||||
self.output.seek(0, 2)
|
||||
lend = self.output.tell()
|
||||
assert lend - lstart < 65536
|
||||
self.output.seek(lstart - 2)
|
||||
stuff = struct.pack("!H", lend - lstart)
|
||||
self.output.write(stuff)
|
||||
self.output.seek(0, 2)
|
||||
after = self.output.tell()
|
||||
if after >= self.max_size:
|
||||
self._rollback(before)
|
||||
raise dns.exception.TooBig
|
||||
self.counts[ADDITIONAL] += 1
|
||||
|
||||
def add_tsig(self, keyname, secret, fudge, id, tsig_error, other_data,
|
||||
request_mac, algorithm=dns.tsig.default_algorithm):
|
||||
"""Add a TSIG signature to the message.
|
||||
|
||||
@param keyname: the TSIG key name
|
||||
@type keyname: dns.name.Name object
|
||||
@param secret: the secret to use
|
||||
@type secret: string
|
||||
@param fudge: TSIG time fudge
|
||||
@type fudge: int
|
||||
@param id: the message id to encode in the tsig signature
|
||||
@type id: int
|
||||
@param tsig_error: TSIG error code; default is 0.
|
||||
@type tsig_error: int
|
||||
@param other_data: TSIG other data.
|
||||
@type other_data: string
|
||||
@param request_mac: This message is a response to the request which
|
||||
had the specified MAC.
|
||||
@param algorithm: the TSIG algorithm to use
|
||||
@type request_mac: string
|
||||
"""
|
||||
|
||||
self._set_section(ADDITIONAL)
|
||||
before = self.output.tell()
|
||||
s = self.output.getvalue()
|
||||
(tsig_rdata, self.mac, ctx) = dns.tsig.sign(s,
|
||||
keyname,
|
||||
secret,
|
||||
int(time.time()),
|
||||
fudge,
|
||||
id,
|
||||
tsig_error,
|
||||
other_data,
|
||||
request_mac,
|
||||
algorithm=algorithm)
|
||||
keyname.to_wire(self.output, self.compress, self.origin)
|
||||
self.output.write(struct.pack('!HHIH', dns.rdatatype.TSIG,
|
||||
dns.rdataclass.ANY, 0, 0))
|
||||
rdata_start = self.output.tell()
|
||||
self.output.write(tsig_rdata)
|
||||
after = self.output.tell()
|
||||
assert after - rdata_start < 65536
|
||||
if after >= self.max_size:
|
||||
self._rollback(before)
|
||||
raise dns.exception.TooBig
|
||||
self.output.seek(rdata_start - 2)
|
||||
self.output.write(struct.pack('!H', after - rdata_start))
|
||||
self.counts[ADDITIONAL] += 1
|
||||
self.output.seek(10)
|
||||
self.output.write(struct.pack('!H', self.counts[ADDITIONAL]))
|
||||
self.output.seek(0, 2)
|
||||
|
||||
def write_header(self):
|
||||
"""Write the DNS message header.
|
||||
|
||||
Writing the DNS message header is done asfter all sections
|
||||
have been rendered, but before the optional TSIG signature
|
||||
is added.
|
||||
"""
|
||||
|
||||
self.output.seek(0)
|
||||
self.output.write(struct.pack('!HHHHHH', self.id, self.flags,
|
||||
self.counts[0], self.counts[1],
|
||||
self.counts[2], self.counts[3]))
|
||||
self.output.seek(0, 2)
|
||||
|
||||
def get_wire(self):
|
||||
"""Return the wire format message.
|
||||
|
||||
@rtype: string
|
||||
"""
|
||||
|
||||
return self.output.getvalue()
|
@ -1,761 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""DNS stub resolver.
|
||||
|
||||
@var default_resolver: The default resolver object
|
||||
@type default_resolver: dns.resolver.Resolver object"""
|
||||
|
||||
import socket
|
||||
import sys
|
||||
import time
|
||||
|
||||
import dns.exception
|
||||
import dns.message
|
||||
import dns.name
|
||||
import dns.query
|
||||
import dns.rcode
|
||||
import dns.rdataclass
|
||||
import dns.rdatatype
|
||||
|
||||
if sys.platform == 'win32':
|
||||
import _winreg
|
||||
|
||||
class NXDOMAIN(dns.exception.DNSException):
|
||||
"""The query name does not exist."""
|
||||
pass
|
||||
|
||||
# The definition of the Timeout exception has moved from here to the
|
||||
# dns.exception module. We keep dns.resolver.Timeout defined for
|
||||
# backwards compatibility.
|
||||
|
||||
Timeout = dns.exception.Timeout
|
||||
|
||||
class NoAnswer(dns.exception.DNSException):
|
||||
"""The response did not contain an answer to the question."""
|
||||
pass
|
||||
|
||||
class NoNameservers(dns.exception.DNSException):
|
||||
"""No non-broken nameservers are available to answer the query."""
|
||||
pass
|
||||
|
||||
class NotAbsolute(dns.exception.DNSException):
|
||||
"""Raised if an absolute domain name is required but a relative name
|
||||
was provided."""
|
||||
pass
|
||||
|
||||
class NoRootSOA(dns.exception.DNSException):
|
||||
"""Raised if for some reason there is no SOA at the root name.
|
||||
This should never happen!"""
|
||||
pass
|
||||
|
||||
|
||||
class Answer(object):
|
||||
"""DNS stub resolver answer
|
||||
|
||||
Instances of this class bundle up the result of a successful DNS
|
||||
resolution.
|
||||
|
||||
For convenience, the answer object implements much of the sequence
|
||||
protocol, forwarding to its rrset. E.g. "for a in answer" is
|
||||
equivalent to "for a in answer.rrset", "answer[i]" is equivalent
|
||||
to "answer.rrset[i]", and "answer[i:j]" is equivalent to
|
||||
"answer.rrset[i:j]".
|
||||
|
||||
Note that CNAMEs or DNAMEs in the response may mean that answer
|
||||
node's name might not be the query name.
|
||||
|
||||
@ivar qname: The query name
|
||||
@type qname: dns.name.Name object
|
||||
@ivar rdtype: The query type
|
||||
@type rdtype: int
|
||||
@ivar rdclass: The query class
|
||||
@type rdclass: int
|
||||
@ivar response: The response message
|
||||
@type response: dns.message.Message object
|
||||
@ivar rrset: The answer
|
||||
@type rrset: dns.rrset.RRset object
|
||||
@ivar expiration: The time when the answer expires
|
||||
@type expiration: float (seconds since the epoch)
|
||||
"""
|
||||
def __init__(self, qname, rdtype, rdclass, response):
|
||||
self.qname = qname
|
||||
self.rdtype = rdtype
|
||||
self.rdclass = rdclass
|
||||
self.response = response
|
||||
min_ttl = -1
|
||||
rrset = None
|
||||
for count in xrange(0, 15):
|
||||
try:
|
||||
rrset = response.find_rrset(response.answer, qname,
|
||||
rdclass, rdtype)
|
||||
if min_ttl == -1 or rrset.ttl < min_ttl:
|
||||
min_ttl = rrset.ttl
|
||||
break
|
||||
except KeyError:
|
||||
if rdtype != dns.rdatatype.CNAME:
|
||||
try:
|
||||
crrset = response.find_rrset(response.answer,
|
||||
qname,
|
||||
rdclass,
|
||||
dns.rdatatype.CNAME)
|
||||
if min_ttl == -1 or crrset.ttl < min_ttl:
|
||||
min_ttl = crrset.ttl
|
||||
for rd in crrset:
|
||||
qname = rd.target
|
||||
break
|
||||
continue
|
||||
except KeyError:
|
||||
raise NoAnswer
|
||||
raise NoAnswer
|
||||
if rrset is None:
|
||||
raise NoAnswer
|
||||
self.rrset = rrset
|
||||
self.expiration = time.time() + min_ttl
|
||||
|
||||
def __getattr__(self, attr):
|
||||
if attr == 'name':
|
||||
return self.rrset.name
|
||||
elif attr == 'ttl':
|
||||
return self.rrset.ttl
|
||||
elif attr == 'covers':
|
||||
return self.rrset.covers
|
||||
elif attr == 'rdclass':
|
||||
return self.rrset.rdclass
|
||||
elif attr == 'rdtype':
|
||||
return self.rrset.rdtype
|
||||
else:
|
||||
raise AttributeError(attr)
|
||||
|
||||
def __len__(self):
|
||||
return len(self.rrset)
|
||||
|
||||
def __iter__(self):
|
||||
return iter(self.rrset)
|
||||
|
||||
def __getitem__(self, i):
|
||||
return self.rrset[i]
|
||||
|
||||
def __delitem__(self, i):
|
||||
del self.rrset[i]
|
||||
|
||||
def __getslice__(self, i, j):
|
||||
return self.rrset[i:j]
|
||||
|
||||
def __delslice__(self, i, j):
|
||||
del self.rrset[i:j]
|
||||
|
||||
class Cache(object):
|
||||
"""Simple DNS answer cache.
|
||||
|
||||
@ivar data: A dictionary of cached data
|
||||
@type data: dict
|
||||
@ivar cleaning_interval: The number of seconds between cleanings. The
|
||||
default is 300 (5 minutes).
|
||||
@type cleaning_interval: float
|
||||
@ivar next_cleaning: The time the cache should next be cleaned (in seconds
|
||||
since the epoch.)
|
||||
@type next_cleaning: float
|
||||
"""
|
||||
|
||||
def __init__(self, cleaning_interval=300.0):
|
||||
"""Initialize a DNS cache.
|
||||
|
||||
@param cleaning_interval: the number of seconds between periodic
|
||||
cleanings. The default is 300.0
|
||||
@type cleaning_interval: float.
|
||||
"""
|
||||
|
||||
self.data = {}
|
||||
self.cleaning_interval = cleaning_interval
|
||||
self.next_cleaning = time.time() + self.cleaning_interval
|
||||
|
||||
def maybe_clean(self):
|
||||
"""Clean the cache if it's time to do so."""
|
||||
|
||||
now = time.time()
|
||||
if self.next_cleaning <= now:
|
||||
keys_to_delete = []
|
||||
for (k, v) in self.data.iteritems():
|
||||
if v.expiration <= now:
|
||||
keys_to_delete.append(k)
|
||||
for k in keys_to_delete:
|
||||
del self.data[k]
|
||||
now = time.time()
|
||||
self.next_cleaning = now + self.cleaning_interval
|
||||
|
||||
def get(self, key):
|
||||
"""Get the answer associated with I{key}. Returns None if
|
||||
no answer is cached for the key.
|
||||
@param key: the key
|
||||
@type key: (dns.name.Name, int, int) tuple whose values are the
|
||||
query name, rdtype, and rdclass.
|
||||
@rtype: dns.resolver.Answer object or None
|
||||
"""
|
||||
|
||||
self.maybe_clean()
|
||||
v = self.data.get(key)
|
||||
if v is None or v.expiration <= time.time():
|
||||
return None
|
||||
return v
|
||||
|
||||
def put(self, key, value):
|
||||
"""Associate key and value in the cache.
|
||||
@param key: the key
|
||||
@type key: (dns.name.Name, int, int) tuple whose values are the
|
||||
query name, rdtype, and rdclass.
|
||||
@param value: The answer being cached
|
||||
@type value: dns.resolver.Answer object
|
||||
"""
|
||||
|
||||
self.maybe_clean()
|
||||
self.data[key] = value
|
||||
|
||||
def flush(self, key=None):
|
||||
"""Flush the cache.
|
||||
|
||||
If I{key} is specified, only that item is flushed. Otherwise
|
||||
the entire cache is flushed.
|
||||
|
||||
@param key: the key to flush
|
||||
@type key: (dns.name.Name, int, int) tuple or None
|
||||
"""
|
||||
|
||||
if not key is None:
|
||||
if self.data.has_key(key):
|
||||
del self.data[key]
|
||||
else:
|
||||
self.data = {}
|
||||
self.next_cleaning = time.time() + self.cleaning_interval
|
||||
|
||||
class Resolver(object):
|
||||
"""DNS stub resolver
|
||||
|
||||
@ivar domain: The domain of this host
|
||||
@type domain: dns.name.Name object
|
||||
@ivar nameservers: A list of nameservers to query. Each nameserver is
|
||||
a string which contains the IP address of a nameserver.
|
||||
@type nameservers: list of strings
|
||||
@ivar search: The search list. If the query name is a relative name,
|
||||
the resolver will construct an absolute query name by appending the search
|
||||
names one by one to the query name.
|
||||
@type search: list of dns.name.Name objects
|
||||
@ivar port: The port to which to send queries. The default is 53.
|
||||
@type port: int
|
||||
@ivar timeout: The number of seconds to wait for a response from a
|
||||
server, before timing out.
|
||||
@type timeout: float
|
||||
@ivar lifetime: The total number of seconds to spend trying to get an
|
||||
answer to the question. If the lifetime expires, a Timeout exception
|
||||
will occur.
|
||||
@type lifetime: float
|
||||
@ivar keyring: The TSIG keyring to use. The default is None.
|
||||
@type keyring: dict
|
||||
@ivar keyname: The TSIG keyname to use. The default is None.
|
||||
@type keyname: dns.name.Name object
|
||||
@ivar keyalgorithm: The TSIG key algorithm to use. The default is
|
||||
dns.tsig.default_algorithm.
|
||||
@type keyalgorithm: string
|
||||
@ivar edns: The EDNS level to use. The default is -1, no Edns.
|
||||
@type edns: int
|
||||
@ivar ednsflags: The EDNS flags
|
||||
@type ednsflags: int
|
||||
@ivar payload: The EDNS payload size. The default is 0.
|
||||
@type payload: int
|
||||
@ivar cache: The cache to use. The default is None.
|
||||
@type cache: dns.resolver.Cache object
|
||||
"""
|
||||
def __init__(self, filename='/etc/resolv.conf', configure=True):
|
||||
"""Initialize a resolver instance.
|
||||
|
||||
@param filename: The filename of a configuration file in
|
||||
standard /etc/resolv.conf format. This parameter is meaningful
|
||||
only when I{configure} is true and the platform is POSIX.
|
||||
@type filename: string or file object
|
||||
@param configure: If True (the default), the resolver instance
|
||||
is configured in the normal fashion for the operating system
|
||||
the resolver is running on. (I.e. a /etc/resolv.conf file on
|
||||
POSIX systems and from the registry on Windows systems.)
|
||||
@type configure: bool"""
|
||||
|
||||
self.reset()
|
||||
if configure:
|
||||
if sys.platform == 'win32':
|
||||
self.read_registry()
|
||||
elif filename:
|
||||
self.read_resolv_conf(filename)
|
||||
|
||||
def reset(self):
|
||||
"""Reset all resolver configuration to the defaults."""
|
||||
self.domain = \
|
||||
dns.name.Name(dns.name.from_text(socket.gethostname())[1:])
|
||||
if len(self.domain) == 0:
|
||||
self.domain = dns.name.root
|
||||
self.nameservers = []
|
||||
self.search = []
|
||||
self.port = 53
|
||||
self.timeout = 2.0
|
||||
self.lifetime = 30.0
|
||||
self.keyring = None
|
||||
self.keyname = None
|
||||
self.keyalgorithm = dns.tsig.default_algorithm
|
||||
self.edns = -1
|
||||
self.ednsflags = 0
|
||||
self.payload = 0
|
||||
self.cache = None
|
||||
|
||||
def read_resolv_conf(self, f):
|
||||
"""Process f as a file in the /etc/resolv.conf format. If f is
|
||||
a string, it is used as the name of the file to open; otherwise it
|
||||
is treated as the file itself."""
|
||||
if isinstance(f, str) or isinstance(f, unicode):
|
||||
try:
|
||||
f = open(f, 'r')
|
||||
except IOError:
|
||||
# /etc/resolv.conf doesn't exist, can't be read, etc.
|
||||
# We'll just use the default resolver configuration.
|
||||
self.nameservers = ['127.0.0.1']
|
||||
return
|
||||
want_close = True
|
||||
else:
|
||||
want_close = False
|
||||
try:
|
||||
for l in f:
|
||||
if len(l) == 0 or l[0] == '#' or l[0] == ';':
|
||||
continue
|
||||
tokens = l.split()
|
||||
if len(tokens) == 0:
|
||||
continue
|
||||
if tokens[0] == 'nameserver':
|
||||
self.nameservers.append(tokens[1])
|
||||
elif tokens[0] == 'domain':
|
||||
self.domain = dns.name.from_text(tokens[1])
|
||||
elif tokens[0] == 'search':
|
||||
for suffix in tokens[1:]:
|
||||
self.search.append(dns.name.from_text(suffix))
|
||||
finally:
|
||||
if want_close:
|
||||
f.close()
|
||||
if len(self.nameservers) == 0:
|
||||
self.nameservers.append('127.0.0.1')
|
||||
|
||||
def _determine_split_char(self, entry):
|
||||
#
|
||||
# The windows registry irritatingly changes the list element
|
||||
# delimiter in between ' ' and ',' (and vice-versa) in various
|
||||
# versions of windows.
|
||||
#
|
||||
if entry.find(' ') >= 0:
|
||||
split_char = ' '
|
||||
elif entry.find(',') >= 0:
|
||||
split_char = ','
|
||||
else:
|
||||
# probably a singleton; treat as a space-separated list.
|
||||
split_char = ' '
|
||||
return split_char
|
||||
|
||||
def _config_win32_nameservers(self, nameservers):
|
||||
"""Configure a NameServer registry entry."""
|
||||
# we call str() on nameservers to convert it from unicode to ascii
|
||||
nameservers = str(nameservers)
|
||||
split_char = self._determine_split_char(nameservers)
|
||||
ns_list = nameservers.split(split_char)
|
||||
for ns in ns_list:
|
||||
if not ns in self.nameservers:
|
||||
self.nameservers.append(ns)
|
||||
|
||||
def _config_win32_domain(self, domain):
|
||||
"""Configure a Domain registry entry."""
|
||||
# we call str() on domain to convert it from unicode to ascii
|
||||
self.domain = dns.name.from_text(str(domain))
|
||||
|
||||
def _config_win32_search(self, search):
|
||||
"""Configure a Search registry entry."""
|
||||
# we call str() on search to convert it from unicode to ascii
|
||||
search = str(search)
|
||||
split_char = self._determine_split_char(search)
|
||||
search_list = search.split(split_char)
|
||||
for s in search_list:
|
||||
if not s in self.search:
|
||||
self.search.append(dns.name.from_text(s))
|
||||
|
||||
def _config_win32_fromkey(self, key):
|
||||
"""Extract DNS info from a registry key."""
|
||||
try:
|
||||
servers, rtype = _winreg.QueryValueEx(key, 'NameServer')
|
||||
except WindowsError:
|
||||
servers = None
|
||||
if servers:
|
||||
self._config_win32_nameservers(servers)
|
||||
try:
|
||||
dom, rtype = _winreg.QueryValueEx(key, 'Domain')
|
||||
if dom:
|
||||
self._config_win32_domain(dom)
|
||||
except WindowsError:
|
||||
pass
|
||||
else:
|
||||
try:
|
||||
servers, rtype = _winreg.QueryValueEx(key, 'DhcpNameServer')
|
||||
except WindowsError:
|
||||
servers = None
|
||||
if servers:
|
||||
self._config_win32_nameservers(servers)
|
||||
try:
|
||||
dom, rtype = _winreg.QueryValueEx(key, 'DhcpDomain')
|
||||
if dom:
|
||||
self._config_win32_domain(dom)
|
||||
except WindowsError:
|
||||
pass
|
||||
try:
|
||||
search, rtype = _winreg.QueryValueEx(key, 'SearchList')
|
||||
except WindowsError:
|
||||
search = None
|
||||
if search:
|
||||
self._config_win32_search(search)
|
||||
|
||||
def read_registry(self):
|
||||
"""Extract resolver configuration from the Windows registry."""
|
||||
lm = _winreg.ConnectRegistry(None, _winreg.HKEY_LOCAL_MACHINE)
|
||||
want_scan = False
|
||||
try:
|
||||
try:
|
||||
# XP, 2000
|
||||
tcp_params = _winreg.OpenKey(lm,
|
||||
r'SYSTEM\CurrentControlSet'
|
||||
r'\Services\Tcpip\Parameters')
|
||||
want_scan = True
|
||||
except EnvironmentError:
|
||||
# ME
|
||||
tcp_params = _winreg.OpenKey(lm,
|
||||
r'SYSTEM\CurrentControlSet'
|
||||
r'\Services\VxD\MSTCP')
|
||||
try:
|
||||
self._config_win32_fromkey(tcp_params)
|
||||
finally:
|
||||
tcp_params.Close()
|
||||
if want_scan:
|
||||
interfaces = _winreg.OpenKey(lm,
|
||||
r'SYSTEM\CurrentControlSet'
|
||||
r'\Services\Tcpip\Parameters'
|
||||
r'\Interfaces')
|
||||
try:
|
||||
i = 0
|
||||
while True:
|
||||
try:
|
||||
guid = _winreg.EnumKey(interfaces, i)
|
||||
i += 1
|
||||
key = _winreg.OpenKey(interfaces, guid)
|
||||
if not self._win32_is_nic_enabled(lm, guid, key):
|
||||
continue
|
||||
try:
|
||||
self._config_win32_fromkey(key)
|
||||
finally:
|
||||
key.Close()
|
||||
except EnvironmentError:
|
||||
break
|
||||
finally:
|
||||
interfaces.Close()
|
||||
finally:
|
||||
lm.Close()
|
||||
|
||||
def _win32_is_nic_enabled(self, lm, guid, interface_key):
|
||||
# Look in the Windows Registry to determine whether the network
|
||||
# interface corresponding to the given guid is enabled.
|
||||
#
|
||||
# (Code contributed by Paul Marks, thanks!)
|
||||
#
|
||||
try:
|
||||
# This hard-coded location seems to be consistent, at least
|
||||
# from Windows 2000 through Vista.
|
||||
connection_key = _winreg.OpenKey(
|
||||
lm,
|
||||
r'SYSTEM\CurrentControlSet\Control\Network'
|
||||
r'\{4D36E972-E325-11CE-BFC1-08002BE10318}'
|
||||
r'\%s\Connection' % guid)
|
||||
|
||||
try:
|
||||
# The PnpInstanceID points to a key inside Enum
|
||||
(pnp_id, ttype) = _winreg.QueryValueEx(
|
||||
connection_key, 'PnpInstanceID')
|
||||
|
||||
if ttype != _winreg.REG_SZ:
|
||||
raise ValueError
|
||||
|
||||
device_key = _winreg.OpenKey(
|
||||
lm, r'SYSTEM\CurrentControlSet\Enum\%s' % pnp_id)
|
||||
|
||||
try:
|
||||
# Get ConfigFlags for this device
|
||||
(flags, ttype) = _winreg.QueryValueEx(
|
||||
device_key, 'ConfigFlags')
|
||||
|
||||
if ttype != _winreg.REG_DWORD:
|
||||
raise ValueError
|
||||
|
||||
# Based on experimentation, bit 0x1 indicates that the
|
||||
# device is disabled.
|
||||
return not (flags & 0x1)
|
||||
|
||||
finally:
|
||||
device_key.Close()
|
||||
finally:
|
||||
connection_key.Close()
|
||||
except (EnvironmentError, ValueError):
|
||||
# Pre-vista, enabled interfaces seem to have a non-empty
|
||||
# NTEContextList; this was how dnspython detected enabled
|
||||
# nics before the code above was contributed. We've retained
|
||||
# the old method since we don't know if the code above works
|
||||
# on Windows 95/98/ME.
|
||||
try:
|
||||
(nte, ttype) = _winreg.QueryValueEx(interface_key,
|
||||
'NTEContextList')
|
||||
return nte is not None
|
||||
except WindowsError:
|
||||
return False
|
||||
|
||||
def _compute_timeout(self, start):
|
||||
now = time.time()
|
||||
if now < start:
|
||||
if start - now > 1:
|
||||
# Time going backwards is bad. Just give up.
|
||||
raise Timeout
|
||||
else:
|
||||
# Time went backwards, but only a little. This can
|
||||
# happen, e.g. under vmware with older linux kernels.
|
||||
# Pretend it didn't happen.
|
||||
now = start
|
||||
duration = now - start
|
||||
if duration >= self.lifetime:
|
||||
raise Timeout
|
||||
return min(self.lifetime - duration, self.timeout)
|
||||
|
||||
def query(self, qname, rdtype=dns.rdatatype.A, rdclass=dns.rdataclass.IN,
|
||||
tcp=False, source=None):
|
||||
"""Query nameservers to find the answer to the question.
|
||||
|
||||
The I{qname}, I{rdtype}, and I{rdclass} parameters may be objects
|
||||
of the appropriate type, or strings that can be converted into objects
|
||||
of the appropriate type. E.g. For I{rdtype} the integer 2 and the
|
||||
the string 'NS' both mean to query for records with DNS rdata type NS.
|
||||
|
||||
@param qname: the query name
|
||||
@type qname: dns.name.Name object or string
|
||||
@param rdtype: the query type
|
||||
@type rdtype: int or string
|
||||
@param rdclass: the query class
|
||||
@type rdclass: int or string
|
||||
@param tcp: use TCP to make the query (default is False).
|
||||
@type tcp: bool
|
||||
@param source: bind to this IP address (defaults to machine default IP).
|
||||
@type source: IP address in dotted quad notation
|
||||
@rtype: dns.resolver.Answer instance
|
||||
@raises Timeout: no answers could be found in the specified lifetime
|
||||
@raises NXDOMAIN: the query name does not exist
|
||||
@raises NoAnswer: the response did not contain an answer
|
||||
@raises NoNameservers: no non-broken nameservers are available to
|
||||
answer the question."""
|
||||
|
||||
if isinstance(qname, (str, unicode)):
|
||||
qname = dns.name.from_text(qname, None)
|
||||
if isinstance(rdtype, str):
|
||||
rdtype = dns.rdatatype.from_text(rdtype)
|
||||
if isinstance(rdclass, str):
|
||||
rdclass = dns.rdataclass.from_text(rdclass)
|
||||
qnames_to_try = []
|
||||
if qname.is_absolute():
|
||||
qnames_to_try.append(qname)
|
||||
else:
|
||||
if len(qname) > 1:
|
||||
qnames_to_try.append(qname.concatenate(dns.name.root))
|
||||
if self.search:
|
||||
for suffix in self.search:
|
||||
qnames_to_try.append(qname.concatenate(suffix))
|
||||
else:
|
||||
qnames_to_try.append(qname.concatenate(self.domain))
|
||||
all_nxdomain = True
|
||||
start = time.time()
|
||||
for qname in qnames_to_try:
|
||||
if self.cache:
|
||||
answer = self.cache.get((qname, rdtype, rdclass))
|
||||
if answer:
|
||||
return answer
|
||||
request = dns.message.make_query(qname, rdtype, rdclass)
|
||||
if not self.keyname is None:
|
||||
request.use_tsig(self.keyring, self.keyname, self.keyalgorithm)
|
||||
request.use_edns(self.edns, self.ednsflags, self.payload)
|
||||
response = None
|
||||
#
|
||||
# make a copy of the servers list so we can alter it later.
|
||||
#
|
||||
nameservers = self.nameservers[:]
|
||||
backoff = 0.10
|
||||
while response is None:
|
||||
if len(nameservers) == 0:
|
||||
raise NoNameservers
|
||||
for nameserver in nameservers[:]:
|
||||
timeout = self._compute_timeout(start)
|
||||
try:
|
||||
if tcp:
|
||||
response = dns.query.tcp(request, nameserver,
|
||||
timeout, self.port,
|
||||
source=source)
|
||||
else:
|
||||
response = dns.query.udp(request, nameserver,
|
||||
timeout, self.port,
|
||||
source=source)
|
||||
except (socket.error, dns.exception.Timeout):
|
||||
#
|
||||
# Communication failure or timeout. Go to the
|
||||
# next server
|
||||
#
|
||||
response = None
|
||||
continue
|
||||
except dns.query.UnexpectedSource:
|
||||
#
|
||||
# Who knows? Keep going.
|
||||
#
|
||||
response = None
|
||||
continue
|
||||
except dns.exception.FormError:
|
||||
#
|
||||
# We don't understand what this server is
|
||||
# saying. Take it out of the mix and
|
||||
# continue.
|
||||
#
|
||||
nameservers.remove(nameserver)
|
||||
response = None
|
||||
continue
|
||||
rcode = response.rcode()
|
||||
if rcode == dns.rcode.NOERROR or \
|
||||
rcode == dns.rcode.NXDOMAIN:
|
||||
break
|
||||
#
|
||||
# We got a response, but we're not happy with the
|
||||
# rcode in it. Remove the server from the mix if
|
||||
# the rcode isn't SERVFAIL.
|
||||
#
|
||||
if rcode != dns.rcode.SERVFAIL:
|
||||
nameservers.remove(nameserver)
|
||||
response = None
|
||||
if not response is None:
|
||||
break
|
||||
#
|
||||
# All nameservers failed!
|
||||
#
|
||||
if len(nameservers) > 0:
|
||||
#
|
||||
# But we still have servers to try. Sleep a bit
|
||||
# so we don't pound them!
|
||||
#
|
||||
timeout = self._compute_timeout(start)
|
||||
sleep_time = min(timeout, backoff)
|
||||
backoff *= 2
|
||||
time.sleep(sleep_time)
|
||||
if response.rcode() == dns.rcode.NXDOMAIN:
|
||||
continue
|
||||
all_nxdomain = False
|
||||
break
|
||||
if all_nxdomain:
|
||||
raise NXDOMAIN
|
||||
answer = Answer(qname, rdtype, rdclass, response)
|
||||
if self.cache:
|
||||
self.cache.put((qname, rdtype, rdclass), answer)
|
||||
return answer
|
||||
|
||||
def use_tsig(self, keyring, keyname=None,
|
||||
algorithm=dns.tsig.default_algorithm):
|
||||
"""Add a TSIG signature to the query.
|
||||
|
||||
@param keyring: The TSIG keyring to use; defaults to None.
|
||||
@type keyring: dict
|
||||
@param keyname: The name of the TSIG key to use; defaults to None.
|
||||
The key must be defined in the keyring. If a keyring is specified
|
||||
but a keyname is not, then the key used will be the first key in the
|
||||
keyring. Note that the order of keys in a dictionary is not defined,
|
||||
so applications should supply a keyname when a keyring is used, unless
|
||||
they know the keyring contains only one key.
|
||||
@param algorithm: The TSIG key algorithm to use. The default
|
||||
is dns.tsig.default_algorithm.
|
||||
@type algorithm: string"""
|
||||
self.keyring = keyring
|
||||
if keyname is None:
|
||||
self.keyname = self.keyring.keys()[0]
|
||||
else:
|
||||
self.keyname = keyname
|
||||
self.keyalgorithm = algorithm
|
||||
|
||||
def use_edns(self, edns, ednsflags, payload):
|
||||
"""Configure Edns.
|
||||
|
||||
@param edns: The EDNS level to use. The default is -1, no Edns.
|
||||
@type edns: int
|
||||
@param ednsflags: The EDNS flags
|
||||
@type ednsflags: int
|
||||
@param payload: The EDNS payload size. The default is 0.
|
||||
@type payload: int"""
|
||||
|
||||
if edns is None:
|
||||
edns = -1
|
||||
self.edns = edns
|
||||
self.ednsflags = ednsflags
|
||||
self.payload = payload
|
||||
|
||||
default_resolver = None
|
||||
|
||||
def get_default_resolver():
|
||||
"""Get the default resolver, initializing it if necessary."""
|
||||
global default_resolver
|
||||
if default_resolver is None:
|
||||
default_resolver = Resolver()
|
||||
return default_resolver
|
||||
|
||||
def query(qname, rdtype=dns.rdatatype.A, rdclass=dns.rdataclass.IN,
|
||||
tcp=False, source=None):
|
||||
"""Query nameservers to find the answer to the question.
|
||||
|
||||
This is a convenience function that uses the default resolver
|
||||
object to make the query.
|
||||
@see: L{dns.resolver.Resolver.query} for more information on the
|
||||
parameters."""
|
||||
return get_default_resolver().query(qname, rdtype, rdclass, tcp, source)
|
||||
|
||||
def zone_for_name(name, rdclass=dns.rdataclass.IN, tcp=False, resolver=None):
|
||||
"""Find the name of the zone which contains the specified name.
|
||||
|
||||
@param name: the query name
|
||||
@type name: absolute dns.name.Name object or string
|
||||
@param rdclass: The query class
|
||||
@type rdclass: int
|
||||
@param tcp: use TCP to make the query (default is False).
|
||||
@type tcp: bool
|
||||
@param resolver: the resolver to use
|
||||
@type resolver: dns.resolver.Resolver object or None
|
||||
@rtype: dns.name.Name"""
|
||||
|
||||
if isinstance(name, (str, unicode)):
|
||||
name = dns.name.from_text(name, dns.name.root)
|
||||
if resolver is None:
|
||||
resolver = get_default_resolver()
|
||||
if not name.is_absolute():
|
||||
raise NotAbsolute(name)
|
||||
while 1:
|
||||
try:
|
||||
answer = resolver.query(name, dns.rdatatype.SOA, rdclass, tcp)
|
||||
return name
|
||||
except (dns.resolver.NXDOMAIN, dns.resolver.NoAnswer):
|
||||
try:
|
||||
name = name.parent()
|
||||
except dns.name.NoParent:
|
||||
raise NoRootSOA
|
@ -1,75 +0,0 @@
|
||||
# Copyright (C) 2006, 2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""DNS Reverse Map Names.
|
||||
|
||||
@var ipv4_reverse_domain: The DNS IPv4 reverse-map domain, in-addr.arpa.
|
||||
@type ipv4_reverse_domain: dns.name.Name object
|
||||
@var ipv6_reverse_domain: The DNS IPv6 reverse-map domain, ip6.arpa.
|
||||
@type ipv6_reverse_domain: dns.name.Name object
|
||||
"""
|
||||
|
||||
import dns.name
|
||||
import dns.ipv6
|
||||
import dns.ipv4
|
||||
|
||||
ipv4_reverse_domain = dns.name.from_text('in-addr.arpa.')
|
||||
ipv6_reverse_domain = dns.name.from_text('ip6.arpa.')
|
||||
|
||||
def from_address(text):
|
||||
"""Convert an IPv4 or IPv6 address in textual form into a Name object whose
|
||||
value is the reverse-map domain name of the address.
|
||||
@param text: an IPv4 or IPv6 address in textual form (e.g. '127.0.0.1',
|
||||
'::1')
|
||||
@type text: str
|
||||
@rtype: dns.name.Name object
|
||||
"""
|
||||
try:
|
||||
parts = list(dns.ipv6.inet_aton(text).encode('hex_codec'))
|
||||
origin = ipv6_reverse_domain
|
||||
except:
|
||||
parts = ['%d' % ord(byte) for byte in dns.ipv4.inet_aton(text)]
|
||||
origin = ipv4_reverse_domain
|
||||
parts.reverse()
|
||||
return dns.name.from_text('.'.join(parts), origin=origin)
|
||||
|
||||
def to_address(name):
|
||||
"""Convert a reverse map domain name into textual address form.
|
||||
@param name: an IPv4 or IPv6 address in reverse-map form.
|
||||
@type name: dns.name.Name object
|
||||
@rtype: str
|
||||
"""
|
||||
if name.is_subdomain(ipv4_reverse_domain):
|
||||
name = name.relativize(ipv4_reverse_domain)
|
||||
labels = list(name.labels)
|
||||
labels.reverse()
|
||||
text = '.'.join(labels)
|
||||
# run through inet_aton() to check syntax and make pretty.
|
||||
return dns.ipv4.inet_ntoa(dns.ipv4.inet_aton(text))
|
||||
elif name.is_subdomain(ipv6_reverse_domain):
|
||||
name = name.relativize(ipv6_reverse_domain)
|
||||
labels = list(name.labels)
|
||||
labels.reverse()
|
||||
parts = []
|
||||
i = 0
|
||||
l = len(labels)
|
||||
while i < l:
|
||||
parts.append(''.join(labels[i:i+4]))
|
||||
i += 4
|
||||
text = ':'.join(parts)
|
||||
# run through inet_aton() to check syntax and make pretty.
|
||||
return dns.ipv6.inet_ntoa(dns.ipv6.inet_aton(text))
|
||||
else:
|
||||
raise dns.exception.SyntaxError('unknown reverse-map address family')
|
@ -1,175 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""DNS RRsets (an RRset is a named rdataset)"""
|
||||
|
||||
import dns.name
|
||||
import dns.rdataset
|
||||
import dns.rdataclass
|
||||
import dns.renderer
|
||||
|
||||
class RRset(dns.rdataset.Rdataset):
|
||||
"""A DNS RRset (named rdataset).
|
||||
|
||||
RRset inherits from Rdataset, and RRsets can be treated as
|
||||
Rdatasets in most cases. There are, however, a few notable
|
||||
exceptions. RRsets have different to_wire() and to_text() method
|
||||
arguments, reflecting the fact that RRsets always have an owner
|
||||
name.
|
||||
"""
|
||||
|
||||
__slots__ = ['name', 'deleting']
|
||||
|
||||
def __init__(self, name, rdclass, rdtype, covers=dns.rdatatype.NONE,
|
||||
deleting=None):
|
||||
"""Create a new RRset."""
|
||||
|
||||
super(RRset, self).__init__(rdclass, rdtype)
|
||||
self.name = name
|
||||
self.deleting = deleting
|
||||
|
||||
def _clone(self):
|
||||
obj = super(RRset, self)._clone()
|
||||
obj.name = self.name
|
||||
obj.deleting = self.deleting
|
||||
return obj
|
||||
|
||||
def __repr__(self):
|
||||
if self.covers == 0:
|
||||
ctext = ''
|
||||
else:
|
||||
ctext = '(' + dns.rdatatype.to_text(self.covers) + ')'
|
||||
if not self.deleting is None:
|
||||
dtext = ' delete=' + dns.rdataclass.to_text(self.deleting)
|
||||
else:
|
||||
dtext = ''
|
||||
return '<DNS ' + str(self.name) + ' ' + \
|
||||
dns.rdataclass.to_text(self.rdclass) + ' ' + \
|
||||
dns.rdatatype.to_text(self.rdtype) + ctext + dtext + ' RRset>'
|
||||
|
||||
def __str__(self):
|
||||
return self.to_text()
|
||||
|
||||
def __eq__(self, other):
|
||||
"""Two RRsets are equal if they have the same name and the same
|
||||
rdataset
|
||||
|
||||
@rtype: bool"""
|
||||
if not isinstance(other, RRset):
|
||||
return False
|
||||
if self.name != other.name:
|
||||
return False
|
||||
return super(RRset, self).__eq__(other)
|
||||
|
||||
def match(self, name, rdclass, rdtype, covers, deleting=None):
|
||||
"""Returns True if this rrset matches the specified class, type,
|
||||
covers, and deletion state."""
|
||||
|
||||
if not super(RRset, self).match(rdclass, rdtype, covers):
|
||||
return False
|
||||
if self.name != name or self.deleting != deleting:
|
||||
return False
|
||||
return True
|
||||
|
||||
def to_text(self, origin=None, relativize=True, **kw):
|
||||
"""Convert the RRset into DNS master file format.
|
||||
|
||||
@see: L{dns.name.Name.choose_relativity} for more information
|
||||
on how I{origin} and I{relativize} determine the way names
|
||||
are emitted.
|
||||
|
||||
Any additional keyword arguments are passed on to the rdata
|
||||
to_text() method.
|
||||
|
||||
@param origin: The origin for relative names, or None.
|
||||
@type origin: dns.name.Name object
|
||||
@param relativize: True if names should names be relativized
|
||||
@type relativize: bool"""
|
||||
|
||||
return super(RRset, self).to_text(self.name, origin, relativize,
|
||||
self.deleting, **kw)
|
||||
|
||||
def to_wire(self, file, compress=None, origin=None, **kw):
|
||||
"""Convert the RRset to wire format."""
|
||||
|
||||
return super(RRset, self).to_wire(self.name, file, compress, origin,
|
||||
self.deleting, **kw)
|
||||
|
||||
def to_rdataset(self):
|
||||
"""Convert an RRset into an Rdataset.
|
||||
|
||||
@rtype: dns.rdataset.Rdataset object
|
||||
"""
|
||||
return dns.rdataset.from_rdata_list(self.ttl, list(self))
|
||||
|
||||
|
||||
def from_text_list(name, ttl, rdclass, rdtype, text_rdatas):
|
||||
"""Create an RRset with the specified name, TTL, class, and type, and with
|
||||
the specified list of rdatas in text format.
|
||||
|
||||
@rtype: dns.rrset.RRset object
|
||||
"""
|
||||
|
||||
if isinstance(name, (str, unicode)):
|
||||
name = dns.name.from_text(name, None)
|
||||
if isinstance(rdclass, str):
|
||||
rdclass = dns.rdataclass.from_text(rdclass)
|
||||
if isinstance(rdtype, str):
|
||||
rdtype = dns.rdatatype.from_text(rdtype)
|
||||
r = RRset(name, rdclass, rdtype)
|
||||
r.update_ttl(ttl)
|
||||
for t in text_rdatas:
|
||||
rd = dns.rdata.from_text(r.rdclass, r.rdtype, t)
|
||||
r.add(rd)
|
||||
return r
|
||||
|
||||
def from_text(name, ttl, rdclass, rdtype, *text_rdatas):
|
||||
"""Create an RRset with the specified name, TTL, class, and type and with
|
||||
the specified rdatas in text format.
|
||||
|
||||
@rtype: dns.rrset.RRset object
|
||||
"""
|
||||
|
||||
return from_text_list(name, ttl, rdclass, rdtype, text_rdatas)
|
||||
|
||||
def from_rdata_list(name, ttl, rdatas):
|
||||
"""Create an RRset with the specified name and TTL, and with
|
||||
the specified list of rdata objects.
|
||||
|
||||
@rtype: dns.rrset.RRset object
|
||||
"""
|
||||
|
||||
if isinstance(name, (str, unicode)):
|
||||
name = dns.name.from_text(name, None)
|
||||
|
||||
if len(rdatas) == 0:
|
||||
raise ValueError("rdata list must not be empty")
|
||||
r = None
|
||||
for rd in rdatas:
|
||||
if r is None:
|
||||
r = RRset(name, rd.rdclass, rd.rdtype)
|
||||
r.update_ttl(ttl)
|
||||
first_time = False
|
||||
r.add(rd)
|
||||
return r
|
||||
|
||||
def from_rdata(name, ttl, *rdatas):
|
||||
"""Create an RRset with the specified name and TTL, and with
|
||||
the specified rdata objects.
|
||||
|
||||
@rtype: dns.rrset.RRset object
|
||||
"""
|
||||
|
||||
return from_rdata_list(name, ttl, rdatas)
|
@ -1,263 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""A simple Set class."""
|
||||
|
||||
class Set(object):
|
||||
"""A simple set class.
|
||||
|
||||
Sets are not in Python until 2.3, and rdata are not immutable so
|
||||
we cannot use sets.Set anyway. This class implements subset of
|
||||
the 2.3 Set interface using a list as the container.
|
||||
|
||||
@ivar items: A list of the items which are in the set
|
||||
@type items: list"""
|
||||
|
||||
__slots__ = ['items']
|
||||
|
||||
def __init__(self, items=None):
|
||||
"""Initialize the set.
|
||||
|
||||
@param items: the initial set of items
|
||||
@type items: any iterable or None
|
||||
"""
|
||||
|
||||
self.items = []
|
||||
if not items is None:
|
||||
for item in items:
|
||||
self.add(item)
|
||||
|
||||
def __repr__(self):
|
||||
return "dns.simpleset.Set(%s)" % repr(self.items)
|
||||
|
||||
def add(self, item):
|
||||
"""Add an item to the set."""
|
||||
if not item in self.items:
|
||||
self.items.append(item)
|
||||
|
||||
def remove(self, item):
|
||||
"""Remove an item from the set."""
|
||||
self.items.remove(item)
|
||||
|
||||
def discard(self, item):
|
||||
"""Remove an item from the set if present."""
|
||||
try:
|
||||
self.items.remove(item)
|
||||
except ValueError:
|
||||
pass
|
||||
|
||||
def _clone(self):
|
||||
"""Make a (shallow) copy of the set.
|
||||
|
||||
There is a 'clone protocol' that subclasses of this class
|
||||
should use. To make a copy, first call your super's _clone()
|
||||
method, and use the object returned as the new instance. Then
|
||||
make shallow copies of the attributes defined in the subclass.
|
||||
|
||||
This protocol allows us to write the set algorithms that
|
||||
return new instances (e.g. union) once, and keep using them in
|
||||
subclasses.
|
||||
"""
|
||||
|
||||
cls = self.__class__
|
||||
obj = cls.__new__(cls)
|
||||
obj.items = list(self.items)
|
||||
return obj
|
||||
|
||||
def __copy__(self):
|
||||
"""Make a (shallow) copy of the set."""
|
||||
return self._clone()
|
||||
|
||||
def copy(self):
|
||||
"""Make a (shallow) copy of the set."""
|
||||
return self._clone()
|
||||
|
||||
def union_update(self, other):
|
||||
"""Update the set, adding any elements from other which are not
|
||||
already in the set.
|
||||
@param other: the collection of items with which to update the set
|
||||
@type other: Set object
|
||||
"""
|
||||
if not isinstance(other, Set):
|
||||
raise ValueError('other must be a Set instance')
|
||||
if self is other:
|
||||
return
|
||||
for item in other.items:
|
||||
self.add(item)
|
||||
|
||||
def intersection_update(self, other):
|
||||
"""Update the set, removing any elements from other which are not
|
||||
in both sets.
|
||||
@param other: the collection of items with which to update the set
|
||||
@type other: Set object
|
||||
"""
|
||||
if not isinstance(other, Set):
|
||||
raise ValueError('other must be a Set instance')
|
||||
if self is other:
|
||||
return
|
||||
# we make a copy of the list so that we can remove items from
|
||||
# the list without breaking the iterator.
|
||||
for item in list(self.items):
|
||||
if item not in other.items:
|
||||
self.items.remove(item)
|
||||
|
||||
def difference_update(self, other):
|
||||
"""Update the set, removing any elements from other which are in
|
||||
the set.
|
||||
@param other: the collection of items with which to update the set
|
||||
@type other: Set object
|
||||
"""
|
||||
if not isinstance(other, Set):
|
||||
raise ValueError('other must be a Set instance')
|
||||
if self is other:
|
||||
self.items = []
|
||||
else:
|
||||
for item in other.items:
|
||||
self.discard(item)
|
||||
|
||||
def union(self, other):
|
||||
"""Return a new set which is the union of I{self} and I{other}.
|
||||
|
||||
@param other: the other set
|
||||
@type other: Set object
|
||||
@rtype: the same type as I{self}
|
||||
"""
|
||||
|
||||
obj = self._clone()
|
||||
obj.union_update(other)
|
||||
return obj
|
||||
|
||||
def intersection(self, other):
|
||||
"""Return a new set which is the intersection of I{self} and I{other}.
|
||||
|
||||
@param other: the other set
|
||||
@type other: Set object
|
||||
@rtype: the same type as I{self}
|
||||
"""
|
||||
|
||||
obj = self._clone()
|
||||
obj.intersection_update(other)
|
||||
return obj
|
||||
|
||||
def difference(self, other):
|
||||
"""Return a new set which I{self} - I{other}, i.e. the items
|
||||
in I{self} which are not also in I{other}.
|
||||
|
||||
@param other: the other set
|
||||
@type other: Set object
|
||||
@rtype: the same type as I{self}
|
||||
"""
|
||||
|
||||
obj = self._clone()
|
||||
obj.difference_update(other)
|
||||
return obj
|
||||
|
||||
def __or__(self, other):
|
||||
return self.union(other)
|
||||
|
||||
def __and__(self, other):
|
||||
return self.intersection(other)
|
||||
|
||||
def __add__(self, other):
|
||||
return self.union(other)
|
||||
|
||||
def __sub__(self, other):
|
||||
return self.difference(other)
|
||||
|
||||
def __ior__(self, other):
|
||||
self.union_update(other)
|
||||
return self
|
||||
|
||||
def __iand__(self, other):
|
||||
self.intersection_update(other)
|
||||
return self
|
||||
|
||||
def __iadd__(self, other):
|
||||
self.union_update(other)
|
||||
return self
|
||||
|
||||
def __isub__(self, other):
|
||||
self.difference_update(other)
|
||||
return self
|
||||
|
||||
def update(self, other):
|
||||
"""Update the set, adding any elements from other which are not
|
||||
already in the set.
|
||||
@param other: the collection of items with which to update the set
|
||||
@type other: any iterable type"""
|
||||
for item in other:
|
||||
self.add(item)
|
||||
|
||||
def clear(self):
|
||||
"""Make the set empty."""
|
||||
self.items = []
|
||||
|
||||
def __eq__(self, other):
|
||||
# Yes, this is inefficient but the sets we're dealing with are
|
||||
# usually quite small, so it shouldn't hurt too much.
|
||||
for item in self.items:
|
||||
if not item in other.items:
|
||||
return False
|
||||
for item in other.items:
|
||||
if not item in self.items:
|
||||
return False
|
||||
return True
|
||||
|
||||
def __ne__(self, other):
|
||||
return not self.__eq__(other)
|
||||
|
||||
def __len__(self):
|
||||
return len(self.items)
|
||||
|
||||
def __iter__(self):
|
||||
return iter(self.items)
|
||||
|
||||
def __getitem__(self, i):
|
||||
return self.items[i]
|
||||
|
||||
def __delitem__(self, i):
|
||||
del self.items[i]
|
||||
|
||||
def __getslice__(self, i, j):
|
||||
return self.items[i:j]
|
||||
|
||||
def __delslice__(self, i, j):
|
||||
del self.items[i:j]
|
||||
|
||||
def issubset(self, other):
|
||||
"""Is I{self} a subset of I{other}?
|
||||
|
||||
@rtype: bool
|
||||
"""
|
||||
|
||||
if not isinstance(other, Set):
|
||||
raise ValueError('other must be a Set instance')
|
||||
for item in self.items:
|
||||
if not item in other.items:
|
||||
return False
|
||||
return True
|
||||
|
||||
def issuperset(self, other):
|
||||
"""Is I{self} a superset of I{other}?
|
||||
|
||||
@rtype: bool
|
||||
"""
|
||||
|
||||
if not isinstance(other, Set):
|
||||
raise ValueError('other must be a Set instance')
|
||||
for item in other.items:
|
||||
if not item in self.items:
|
||||
return False
|
||||
return True
|
@ -1,547 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""Tokenize DNS master file format"""
|
||||
|
||||
import cStringIO
|
||||
import sys
|
||||
|
||||
import dns.exception
|
||||
import dns.name
|
||||
import dns.ttl
|
||||
|
||||
_DELIMITERS = {
|
||||
' ' : True,
|
||||
'\t' : True,
|
||||
'\n' : True,
|
||||
';' : True,
|
||||
'(' : True,
|
||||
')' : True,
|
||||
'"' : True }
|
||||
|
||||
_QUOTING_DELIMITERS = { '"' : True }
|
||||
|
||||
EOF = 0
|
||||
EOL = 1
|
||||
WHITESPACE = 2
|
||||
IDENTIFIER = 3
|
||||
QUOTED_STRING = 4
|
||||
COMMENT = 5
|
||||
DELIMITER = 6
|
||||
|
||||
class UngetBufferFull(dns.exception.DNSException):
|
||||
"""Raised when an attempt is made to unget a token when the unget
|
||||
buffer is full."""
|
||||
pass
|
||||
|
||||
class Token(object):
|
||||
"""A DNS master file format token.
|
||||
|
||||
@ivar ttype: The token type
|
||||
@type ttype: int
|
||||
@ivar value: The token value
|
||||
@type value: string
|
||||
@ivar has_escape: Does the token value contain escapes?
|
||||
@type has_escape: bool
|
||||
"""
|
||||
|
||||
def __init__(self, ttype, value='', has_escape=False):
|
||||
"""Initialize a token instance.
|
||||
|
||||
@param ttype: The token type
|
||||
@type ttype: int
|
||||
@ivar value: The token value
|
||||
@type value: string
|
||||
@ivar has_escape: Does the token value contain escapes?
|
||||
@type has_escape: bool
|
||||
"""
|
||||
self.ttype = ttype
|
||||
self.value = value
|
||||
self.has_escape = has_escape
|
||||
|
||||
def is_eof(self):
|
||||
return self.ttype == EOF
|
||||
|
||||
def is_eol(self):
|
||||
return self.ttype == EOL
|
||||
|
||||
def is_whitespace(self):
|
||||
return self.ttype == WHITESPACE
|
||||
|
||||
def is_identifier(self):
|
||||
return self.ttype == IDENTIFIER
|
||||
|
||||
def is_quoted_string(self):
|
||||
return self.ttype == QUOTED_STRING
|
||||
|
||||
def is_comment(self):
|
||||
return self.ttype == COMMENT
|
||||
|
||||
def is_delimiter(self):
|
||||
return self.ttype == DELIMITER
|
||||
|
||||
def is_eol_or_eof(self):
|
||||
return (self.ttype == EOL or self.ttype == EOF)
|
||||
|
||||
def __eq__(self, other):
|
||||
if not isinstance(other, Token):
|
||||
return False
|
||||
return (self.ttype == other.ttype and
|
||||
self.value == other.value)
|
||||
|
||||
def __ne__(self, other):
|
||||
if not isinstance(other, Token):
|
||||
return True
|
||||
return (self.ttype != other.ttype or
|
||||
self.value != other.value)
|
||||
|
||||
def __str__(self):
|
||||
return '%d "%s"' % (self.ttype, self.value)
|
||||
|
||||
def unescape(self):
|
||||
if not self.has_escape:
|
||||
return self
|
||||
unescaped = ''
|
||||
l = len(self.value)
|
||||
i = 0
|
||||
while i < l:
|
||||
c = self.value[i]
|
||||
i += 1
|
||||
if c == '\\':
|
||||
if i >= l:
|
||||
raise dns.exception.UnexpectedEnd
|
||||
c = self.value[i]
|
||||
i += 1
|
||||
if c.isdigit():
|
||||
if i >= l:
|
||||
raise dns.exception.UnexpectedEnd
|
||||
c2 = self.value[i]
|
||||
i += 1
|
||||
if i >= l:
|
||||
raise dns.exception.UnexpectedEnd
|
||||
c3 = self.value[i]
|
||||
i += 1
|
||||
if not (c2.isdigit() and c3.isdigit()):
|
||||
raise dns.exception.SyntaxError
|
||||
c = chr(int(c) * 100 + int(c2) * 10 + int(c3))
|
||||
unescaped += c
|
||||
return Token(self.ttype, unescaped)
|
||||
|
||||
# compatibility for old-style tuple tokens
|
||||
|
||||
def __len__(self):
|
||||
return 2
|
||||
|
||||
def __iter__(self):
|
||||
return iter((self.ttype, self.value))
|
||||
|
||||
def __getitem__(self, i):
|
||||
if i == 0:
|
||||
return self.ttype
|
||||
elif i == 1:
|
||||
return self.value
|
||||
else:
|
||||
raise IndexError
|
||||
|
||||
class Tokenizer(object):
|
||||
"""A DNS master file format tokenizer.
|
||||
|
||||
A token is a (type, value) tuple, where I{type} is an int, and
|
||||
I{value} is a string. The valid types are EOF, EOL, WHITESPACE,
|
||||
IDENTIFIER, QUOTED_STRING, COMMENT, and DELIMITER.
|
||||
|
||||
@ivar file: The file to tokenize
|
||||
@type file: file
|
||||
@ivar ungotten_char: The most recently ungotten character, or None.
|
||||
@type ungotten_char: string
|
||||
@ivar ungotten_token: The most recently ungotten token, or None.
|
||||
@type ungotten_token: (int, string) token tuple
|
||||
@ivar multiline: The current multiline level. This value is increased
|
||||
by one every time a '(' delimiter is read, and decreased by one every time
|
||||
a ')' delimiter is read.
|
||||
@type multiline: int
|
||||
@ivar quoting: This variable is true if the tokenizer is currently
|
||||
reading a quoted string.
|
||||
@type quoting: bool
|
||||
@ivar eof: This variable is true if the tokenizer has encountered EOF.
|
||||
@type eof: bool
|
||||
@ivar delimiters: The current delimiter dictionary.
|
||||
@type delimiters: dict
|
||||
@ivar line_number: The current line number
|
||||
@type line_number: int
|
||||
@ivar filename: A filename that will be returned by the L{where} method.
|
||||
@type filename: string
|
||||
"""
|
||||
|
||||
def __init__(self, f=sys.stdin, filename=None):
|
||||
"""Initialize a tokenizer instance.
|
||||
|
||||
@param f: The file to tokenize. The default is sys.stdin.
|
||||
This parameter may also be a string, in which case the tokenizer
|
||||
will take its input from the contents of the string.
|
||||
@type f: file or string
|
||||
@param filename: the name of the filename that the L{where} method
|
||||
will return.
|
||||
@type filename: string
|
||||
"""
|
||||
|
||||
if isinstance(f, str):
|
||||
f = cStringIO.StringIO(f)
|
||||
if filename is None:
|
||||
filename = '<string>'
|
||||
else:
|
||||
if filename is None:
|
||||
if f is sys.stdin:
|
||||
filename = '<stdin>'
|
||||
else:
|
||||
filename = '<file>'
|
||||
self.file = f
|
||||
self.ungotten_char = None
|
||||
self.ungotten_token = None
|
||||
self.multiline = 0
|
||||
self.quoting = False
|
||||
self.eof = False
|
||||
self.delimiters = _DELIMITERS
|
||||
self.line_number = 1
|
||||
self.filename = filename
|
||||
|
||||
def _get_char(self):
|
||||
"""Read a character from input.
|
||||
@rtype: string
|
||||
"""
|
||||
|
||||
if self.ungotten_char is None:
|
||||
if self.eof:
|
||||
c = ''
|
||||
else:
|
||||
c = self.file.read(1)
|
||||
if c == '':
|
||||
self.eof = True
|
||||
elif c == '\n':
|
||||
self.line_number += 1
|
||||
else:
|
||||
c = self.ungotten_char
|
||||
self.ungotten_char = None
|
||||
return c
|
||||
|
||||
def where(self):
|
||||
"""Return the current location in the input.
|
||||
|
||||
@rtype: (string, int) tuple. The first item is the filename of
|
||||
the input, the second is the current line number.
|
||||
"""
|
||||
|
||||
return (self.filename, self.line_number)
|
||||
|
||||
def _unget_char(self, c):
|
||||
"""Unget a character.
|
||||
|
||||
The unget buffer for characters is only one character large; it is
|
||||
an error to try to unget a character when the unget buffer is not
|
||||
empty.
|
||||
|
||||
@param c: the character to unget
|
||||
@type c: string
|
||||
@raises UngetBufferFull: there is already an ungotten char
|
||||
"""
|
||||
|
||||
if not self.ungotten_char is None:
|
||||
raise UngetBufferFull
|
||||
self.ungotten_char = c
|
||||
|
||||
def skip_whitespace(self):
|
||||
"""Consume input until a non-whitespace character is encountered.
|
||||
|
||||
The non-whitespace character is then ungotten, and the number of
|
||||
whitespace characters consumed is returned.
|
||||
|
||||
If the tokenizer is in multiline mode, then newlines are whitespace.
|
||||
|
||||
@rtype: int
|
||||
"""
|
||||
|
||||
skipped = 0
|
||||
while True:
|
||||
c = self._get_char()
|
||||
if c != ' ' and c != '\t':
|
||||
if (c != '\n') or not self.multiline:
|
||||
self._unget_char(c)
|
||||
return skipped
|
||||
skipped += 1
|
||||
|
||||
def get(self, want_leading = False, want_comment = False):
|
||||
"""Get the next token.
|
||||
|
||||
@param want_leading: If True, return a WHITESPACE token if the
|
||||
first character read is whitespace. The default is False.
|
||||
@type want_leading: bool
|
||||
@param want_comment: If True, return a COMMENT token if the
|
||||
first token read is a comment. The default is False.
|
||||
@type want_comment: bool
|
||||
@rtype: Token object
|
||||
@raises dns.exception.UnexpectedEnd: input ended prematurely
|
||||
@raises dns.exception.SyntaxError: input was badly formed
|
||||
"""
|
||||
|
||||
if not self.ungotten_token is None:
|
||||
token = self.ungotten_token
|
||||
self.ungotten_token = None
|
||||
if token.is_whitespace():
|
||||
if want_leading:
|
||||
return token
|
||||
elif token.is_comment():
|
||||
if want_comment:
|
||||
return token
|
||||
else:
|
||||
return token
|
||||
skipped = self.skip_whitespace()
|
||||
if want_leading and skipped > 0:
|
||||
return Token(WHITESPACE, ' ')
|
||||
token = ''
|
||||
ttype = IDENTIFIER
|
||||
has_escape = False
|
||||
while True:
|
||||
c = self._get_char()
|
||||
if c == '' or c in self.delimiters:
|
||||
if c == '' and self.quoting:
|
||||
raise dns.exception.UnexpectedEnd
|
||||
if token == '' and ttype != QUOTED_STRING:
|
||||
if c == '(':
|
||||
self.multiline += 1
|
||||
self.skip_whitespace()
|
||||
continue
|
||||
elif c == ')':
|
||||
if not self.multiline > 0:
|
||||
raise dns.exception.SyntaxError
|
||||
self.multiline -= 1
|
||||
self.skip_whitespace()
|
||||
continue
|
||||
elif c == '"':
|
||||
if not self.quoting:
|
||||
self.quoting = True
|
||||
self.delimiters = _QUOTING_DELIMITERS
|
||||
ttype = QUOTED_STRING
|
||||
continue
|
||||
else:
|
||||
self.quoting = False
|
||||
self.delimiters = _DELIMITERS
|
||||
self.skip_whitespace()
|
||||
continue
|
||||
elif c == '\n':
|
||||
return Token(EOL, '\n')
|
||||
elif c == ';':
|
||||
while 1:
|
||||
c = self._get_char()
|
||||
if c == '\n' or c == '':
|
||||
break
|
||||
token += c
|
||||
if want_comment:
|
||||
self._unget_char(c)
|
||||
return Token(COMMENT, token)
|
||||
elif c == '':
|
||||
if self.multiline:
|
||||
raise dns.exception.SyntaxError('unbalanced parentheses')
|
||||
return Token(EOF)
|
||||
elif self.multiline:
|
||||
self.skip_whitespace()
|
||||
token = ''
|
||||
continue
|
||||
else:
|
||||
return Token(EOL, '\n')
|
||||
else:
|
||||
# This code exists in case we ever want a
|
||||
# delimiter to be returned. It never produces
|
||||
# a token currently.
|
||||
token = c
|
||||
ttype = DELIMITER
|
||||
else:
|
||||
self._unget_char(c)
|
||||
break
|
||||
elif self.quoting:
|
||||
if c == '\\':
|
||||
c = self._get_char()
|
||||
if c == '':
|
||||
raise dns.exception.UnexpectedEnd
|
||||
if c.isdigit():
|
||||
c2 = self._get_char()
|
||||
if c2 == '':
|
||||
raise dns.exception.UnexpectedEnd
|
||||
c3 = self._get_char()
|
||||
if c == '':
|
||||
raise dns.exception.UnexpectedEnd
|
||||
if not (c2.isdigit() and c3.isdigit()):
|
||||
raise dns.exception.SyntaxError
|
||||
c = chr(int(c) * 100 + int(c2) * 10 + int(c3))
|
||||
elif c == '\n':
|
||||
raise dns.exception.SyntaxError('newline in quoted string')
|
||||
elif c == '\\':
|
||||
#
|
||||
# It's an escape. Put it and the next character into
|
||||
# the token; it will be checked later for goodness.
|
||||
#
|
||||
token += c
|
||||
has_escape = True
|
||||
c = self._get_char()
|
||||
if c == '' or c == '\n':
|
||||
raise dns.exception.UnexpectedEnd
|
||||
token += c
|
||||
if token == '' and ttype != QUOTED_STRING:
|
||||
if self.multiline:
|
||||
raise dns.exception.SyntaxError('unbalanced parentheses')
|
||||
ttype = EOF
|
||||
return Token(ttype, token, has_escape)
|
||||
|
||||
def unget(self, token):
|
||||
"""Unget a token.
|
||||
|
||||
The unget buffer for tokens is only one token large; it is
|
||||
an error to try to unget a token when the unget buffer is not
|
||||
empty.
|
||||
|
||||
@param token: the token to unget
|
||||
@type token: Token object
|
||||
@raises UngetBufferFull: there is already an ungotten token
|
||||
"""
|
||||
|
||||
if not self.ungotten_token is None:
|
||||
raise UngetBufferFull
|
||||
self.ungotten_token = token
|
||||
|
||||
def next(self):
|
||||
"""Return the next item in an iteration.
|
||||
@rtype: (int, string)
|
||||
"""
|
||||
|
||||
token = self.get()
|
||||
if token.is_eof():
|
||||
raise StopIteration
|
||||
return token
|
||||
|
||||
def __iter__(self):
|
||||
return self
|
||||
|
||||
# Helpers
|
||||
|
||||
def get_int(self):
|
||||
"""Read the next token and interpret it as an integer.
|
||||
|
||||
@raises dns.exception.SyntaxError:
|
||||
@rtype: int
|
||||
"""
|
||||
|
||||
token = self.get().unescape()
|
||||
if not token.is_identifier():
|
||||
raise dns.exception.SyntaxError('expecting an identifier')
|
||||
if not token.value.isdigit():
|
||||
raise dns.exception.SyntaxError('expecting an integer')
|
||||
return int(token.value)
|
||||
|
||||
def get_uint8(self):
|
||||
"""Read the next token and interpret it as an 8-bit unsigned
|
||||
integer.
|
||||
|
||||
@raises dns.exception.SyntaxError:
|
||||
@rtype: int
|
||||
"""
|
||||
|
||||
value = self.get_int()
|
||||
if value < 0 or value > 255:
|
||||
raise dns.exception.SyntaxError('%d is not an unsigned 8-bit integer' % value)
|
||||
return value
|
||||
|
||||
def get_uint16(self):
|
||||
"""Read the next token and interpret it as a 16-bit unsigned
|
||||
integer.
|
||||
|
||||
@raises dns.exception.SyntaxError:
|
||||
@rtype: int
|
||||
"""
|
||||
|
||||
value = self.get_int()
|
||||
if value < 0 or value > 65535:
|
||||
raise dns.exception.SyntaxError('%d is not an unsigned 16-bit integer' % value)
|
||||
return value
|
||||
|
||||
def get_uint32(self):
|
||||
"""Read the next token and interpret it as a 32-bit unsigned
|
||||
integer.
|
||||
|
||||
@raises dns.exception.SyntaxError:
|
||||
@rtype: int
|
||||
"""
|
||||
|
||||
token = self.get().unescape()
|
||||
if not token.is_identifier():
|
||||
raise dns.exception.SyntaxError('expecting an identifier')
|
||||
if not token.value.isdigit():
|
||||
raise dns.exception.SyntaxError('expecting an integer')
|
||||
value = long(token.value)
|
||||
if value < 0 or value > 4294967296L:
|
||||
raise dns.exception.SyntaxError('%d is not an unsigned 32-bit integer' % value)
|
||||
return value
|
||||
|
||||
def get_string(self, origin=None):
|
||||
"""Read the next token and interpret it as a string.
|
||||
|
||||
@raises dns.exception.SyntaxError:
|
||||
@rtype: string
|
||||
"""
|
||||
|
||||
token = self.get().unescape()
|
||||
if not (token.is_identifier() or token.is_quoted_string()):
|
||||
raise dns.exception.SyntaxError('expecting a string')
|
||||
return token.value
|
||||
|
||||
def get_identifier(self, origin=None):
|
||||
"""Read the next token and raise an exception if it is not an identifier.
|
||||
|
||||
@raises dns.exception.SyntaxError:
|
||||
@rtype: string
|
||||
"""
|
||||
|
||||
token = self.get().unescape()
|
||||
if not token.is_identifier():
|
||||
raise dns.exception.SyntaxError('expecting an identifier')
|
||||
return token.value
|
||||
|
||||
def get_name(self, origin=None):
|
||||
"""Read the next token and interpret it as a DNS name.
|
||||
|
||||
@raises dns.exception.SyntaxError:
|
||||
@rtype: dns.name.Name object"""
|
||||
|
||||
token = self.get()
|
||||
if not token.is_identifier():
|
||||
raise dns.exception.SyntaxError('expecting an identifier')
|
||||
return dns.name.from_text(token.value, origin)
|
||||
|
||||
def get_eol(self):
|
||||
"""Read the next token and raise an exception if it isn't EOL or
|
||||
EOF.
|
||||
|
||||
@raises dns.exception.SyntaxError:
|
||||
@rtype: string
|
||||
"""
|
||||
|
||||
token = self.get()
|
||||
if not token.is_eol_or_eof():
|
||||
raise dns.exception.SyntaxError('expected EOL or EOF, got %d "%s"' % (token.ttype, token.value))
|
||||
return token.value
|
||||
|
||||
def get_ttl(self):
|
||||
token = self.get().unescape()
|
||||
if not token.is_identifier():
|
||||
raise dns.exception.SyntaxError('expecting an identifier')
|
||||
return dns.ttl.from_text(token.value)
|
@ -1,216 +0,0 @@
|
||||
# Copyright (C) 2001-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""DNS TSIG support."""
|
||||
|
||||
import hmac
|
||||
import struct
|
||||
|
||||
import dns.exception
|
||||
import dns.rdataclass
|
||||
import dns.name
|
||||
|
||||
class BadTime(dns.exception.DNSException):
|
||||
"""Raised if the current time is not within the TSIG's validity time."""
|
||||
pass
|
||||
|
||||
class BadSignature(dns.exception.DNSException):
|
||||
"""Raised if the TSIG signature fails to verify."""
|
||||
pass
|
||||
|
||||
class PeerError(dns.exception.DNSException):
|
||||
"""Base class for all TSIG errors generated by the remote peer"""
|
||||
pass
|
||||
|
||||
class PeerBadKey(PeerError):
|
||||
"""Raised if the peer didn't know the key we used"""
|
||||
pass
|
||||
|
||||
class PeerBadSignature(PeerError):
|
||||
"""Raised if the peer didn't like the signature we sent"""
|
||||
pass
|
||||
|
||||
class PeerBadTime(PeerError):
|
||||
"""Raised if the peer didn't like the time we sent"""
|
||||
pass
|
||||
|
||||
class PeerBadTruncation(PeerError):
|
||||
"""Raised if the peer didn't like amount of truncation in the TSIG we sent"""
|
||||
pass
|
||||
|
||||
default_algorithm = "HMAC-MD5.SIG-ALG.REG.INT"
|
||||
|
||||
BADSIG = 16
|
||||
BADKEY = 17
|
||||
BADTIME = 18
|
||||
BADTRUNC = 22
|
||||
|
||||
def sign(wire, keyname, secret, time, fudge, original_id, error,
|
||||
other_data, request_mac, ctx=None, multi=False, first=True,
|
||||
algorithm=default_algorithm):
|
||||
"""Return a (tsig_rdata, mac, ctx) tuple containing the HMAC TSIG rdata
|
||||
for the input parameters, the HMAC MAC calculated by applying the
|
||||
TSIG signature algorithm, and the TSIG digest context.
|
||||
@rtype: (string, string, hmac.HMAC object)
|
||||
@raises ValueError: I{other_data} is too long
|
||||
@raises NotImplementedError: I{algorithm} is not supported
|
||||
"""
|
||||
|
||||
(algorithm_name, digestmod) = get_algorithm(algorithm)
|
||||
if first:
|
||||
ctx = hmac.new(secret, digestmod=digestmod)
|
||||
ml = len(request_mac)
|
||||
if ml > 0:
|
||||
ctx.update(struct.pack('!H', ml))
|
||||
ctx.update(request_mac)
|
||||
id = struct.pack('!H', original_id)
|
||||
ctx.update(id)
|
||||
ctx.update(wire[2:])
|
||||
if first:
|
||||
ctx.update(keyname.to_digestable())
|
||||
ctx.update(struct.pack('!H', dns.rdataclass.ANY))
|
||||
ctx.update(struct.pack('!I', 0))
|
||||
long_time = time + 0L
|
||||
upper_time = (long_time >> 32) & 0xffffL
|
||||
lower_time = long_time & 0xffffffffL
|
||||
time_mac = struct.pack('!HIH', upper_time, lower_time, fudge)
|
||||
pre_mac = algorithm_name + time_mac
|
||||
ol = len(other_data)
|
||||
if ol > 65535:
|
||||
raise ValueError('TSIG Other Data is > 65535 bytes')
|
||||
post_mac = struct.pack('!HH', error, ol) + other_data
|
||||
if first:
|
||||
ctx.update(pre_mac)
|
||||
ctx.update(post_mac)
|
||||
else:
|
||||
ctx.update(time_mac)
|
||||
mac = ctx.digest()
|
||||
mpack = struct.pack('!H', len(mac))
|
||||
tsig_rdata = pre_mac + mpack + mac + id + post_mac
|
||||
if multi:
|
||||
ctx = hmac.new(secret)
|
||||
ml = len(mac)
|
||||
ctx.update(struct.pack('!H', ml))
|
||||
ctx.update(mac)
|
||||
else:
|
||||
ctx = None
|
||||
return (tsig_rdata, mac, ctx)
|
||||
|
||||
def hmac_md5(wire, keyname, secret, time, fudge, original_id, error,
|
||||
other_data, request_mac, ctx=None, multi=False, first=True,
|
||||
algorithm=default_algorithm):
|
||||
return sign(wire, keyname, secret, time, fudge, original_id, error,
|
||||
other_data, request_mac, ctx, multi, first, algorithm)
|
||||
|
||||
def validate(wire, keyname, secret, now, request_mac, tsig_start, tsig_rdata,
|
||||
tsig_rdlen, ctx=None, multi=False, first=True):
|
||||
"""Validate the specified TSIG rdata against the other input parameters.
|
||||
|
||||
@raises FormError: The TSIG is badly formed.
|
||||
@raises BadTime: There is too much time skew between the client and the
|
||||
server.
|
||||
@raises BadSignature: The TSIG signature did not validate
|
||||
@rtype: hmac.HMAC object"""
|
||||
|
||||
(adcount,) = struct.unpack("!H", wire[10:12])
|
||||
if adcount == 0:
|
||||
raise dns.exception.FormError
|
||||
adcount -= 1
|
||||
new_wire = wire[0:10] + struct.pack("!H", adcount) + wire[12:tsig_start]
|
||||
current = tsig_rdata
|
||||
(aname, used) = dns.name.from_wire(wire, current)
|
||||
current = current + used
|
||||
(upper_time, lower_time, fudge, mac_size) = \
|
||||
struct.unpack("!HIHH", wire[current:current + 10])
|
||||
time = ((upper_time + 0L) << 32) + (lower_time + 0L)
|
||||
current += 10
|
||||
mac = wire[current:current + mac_size]
|
||||
current += mac_size
|
||||
(original_id, error, other_size) = \
|
||||
struct.unpack("!HHH", wire[current:current + 6])
|
||||
current += 6
|
||||
other_data = wire[current:current + other_size]
|
||||
current += other_size
|
||||
if current != tsig_rdata + tsig_rdlen:
|
||||
raise dns.exception.FormError
|
||||
if error != 0:
|
||||
if error == BADSIG:
|
||||
raise PeerBadSignature
|
||||
elif error == BADKEY:
|
||||
raise PeerBadKey
|
||||
elif error == BADTIME:
|
||||
raise PeerBadTime
|
||||
elif error == BADTRUNC:
|
||||
raise PeerBadTruncation
|
||||
else:
|
||||
raise PeerError('unknown TSIG error code %d' % error)
|
||||
time_low = time - fudge
|
||||
time_high = time + fudge
|
||||
if now < time_low or now > time_high:
|
||||
raise BadTime
|
||||
(junk, our_mac, ctx) = sign(new_wire, keyname, secret, time, fudge,
|
||||
original_id, error, other_data,
|
||||
request_mac, ctx, multi, first, aname)
|
||||
if (our_mac != mac):
|
||||
raise BadSignature
|
||||
return ctx
|
||||
|
||||
def get_algorithm(algorithm):
|
||||
"""Returns the wire format string and the hash module to use for the
|
||||
specified TSIG algorithm
|
||||
|
||||
@rtype: (string, hash constructor)
|
||||
@raises NotImplementedError: I{algorithm} is not supported
|
||||
"""
|
||||
|
||||
hashes = {}
|
||||
try:
|
||||
import hashlib
|
||||
hashes[dns.name.from_text('hmac-sha224')] = hashlib.sha224
|
||||
hashes[dns.name.from_text('hmac-sha256')] = hashlib.sha256
|
||||
hashes[dns.name.from_text('hmac-sha384')] = hashlib.sha384
|
||||
hashes[dns.name.from_text('hmac-sha512')] = hashlib.sha512
|
||||
hashes[dns.name.from_text('hmac-sha1')] = hashlib.sha1
|
||||
hashes[dns.name.from_text('HMAC-MD5.SIG-ALG.REG.INT')] = hashlib.md5
|
||||
|
||||
import sys
|
||||
if sys.hexversion < 0x02050000:
|
||||
# hashlib doesn't conform to PEP 247: API for
|
||||
# Cryptographic Hash Functions, which hmac before python
|
||||
# 2.5 requires, so add the necessary items.
|
||||
class HashlibWrapper:
|
||||
def __init__(self, basehash):
|
||||
self.basehash = basehash
|
||||
self.digest_size = self.basehash().digest_size
|
||||
|
||||
def new(self, *args, **kwargs):
|
||||
return self.basehash(*args, **kwargs)
|
||||
|
||||
for name in hashes:
|
||||
hashes[name] = HashlibWrapper(hashes[name])
|
||||
|
||||
except ImportError:
|
||||
import md5, sha
|
||||
hashes[dns.name.from_text('HMAC-MD5.SIG-ALG.REG.INT')] = md5.md5
|
||||
hashes[dns.name.from_text('hmac-sha1')] = sha.sha
|
||||
|
||||
if isinstance(algorithm, (str, unicode)):
|
||||
algorithm = dns.name.from_text(algorithm)
|
||||
|
||||
if algorithm in hashes:
|
||||
return (algorithm.to_digestable(), hashes[algorithm])
|
||||
|
||||
raise NotImplementedError("TSIG algorithm " + str(algorithm) +
|
||||
" is not supported")
|
@ -1,44 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""A place to store TSIG keys."""
|
||||
|
||||
import base64
|
||||
|
||||
import dns.name
|
||||
|
||||
def from_text(textring):
|
||||
"""Convert a dictionary containing (textual DNS name, base64 secret) pairs
|
||||
into a binary keyring which has (dns.name.Name, binary secret) pairs.
|
||||
@rtype: dict"""
|
||||
|
||||
keyring = {}
|
||||
for keytext in textring:
|
||||
keyname = dns.name.from_text(keytext)
|
||||
secret = base64.decodestring(textring[keytext])
|
||||
keyring[keyname] = secret
|
||||
return keyring
|
||||
|
||||
def to_text(keyring):
|
||||
"""Convert a dictionary containing (dns.name.Name, binary secret) pairs
|
||||
into a text keyring which has (textual DNS name, base64 secret) pairs.
|
||||
@rtype: dict"""
|
||||
|
||||
textring = {}
|
||||
for keyname in keyring:
|
||||
keytext = dns.name.to_text(keyname)
|
||||
secret = base64.encodestring(keyring[keyname])
|
||||
textring[keytext] = secret
|
||||
return textring
|
@ -1,64 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""DNS TTL conversion."""
|
||||
|
||||
import dns.exception
|
||||
|
||||
class BadTTL(dns.exception.SyntaxError):
|
||||
pass
|
||||
|
||||
def from_text(text):
|
||||
"""Convert the text form of a TTL to an integer.
|
||||
|
||||
The BIND 8 units syntax for TTLs (e.g. '1w6d4h3m10s') is supported.
|
||||
|
||||
@param text: the textual TTL
|
||||
@type text: string
|
||||
@raises dns.ttl.BadTTL: the TTL is not well-formed
|
||||
@rtype: int
|
||||
"""
|
||||
|
||||
if text.isdigit():
|
||||
total = long(text)
|
||||
else:
|
||||
if not text[0].isdigit():
|
||||
raise BadTTL
|
||||
total = 0L
|
||||
current = 0L
|
||||
for c in text:
|
||||
if c.isdigit():
|
||||
current *= 10
|
||||
current += long(c)
|
||||
else:
|
||||
c = c.lower()
|
||||
if c == 'w':
|
||||
total += current * 604800L
|
||||
elif c == 'd':
|
||||
total += current * 86400L
|
||||
elif c == 'h':
|
||||
total += current * 3600L
|
||||
elif c == 'm':
|
||||
total += current * 60L
|
||||
elif c == 's':
|
||||
total += current
|
||||
else:
|
||||
raise BadTTL("unknown unit '%s'" % c)
|
||||
current = 0
|
||||
if not current == 0:
|
||||
raise BadTTL("trailing integer")
|
||||
if total < 0L or total > 2147483647L:
|
||||
raise BadTTL("TTL should be between 0 and 2^31 - 1 (inclusive)")
|
||||
return total
|
@ -1,241 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""DNS Dynamic Update Support"""
|
||||
|
||||
import dns.message
|
||||
import dns.name
|
||||
import dns.opcode
|
||||
import dns.rdata
|
||||
import dns.rdataclass
|
||||
import dns.rdataset
|
||||
|
||||
class Update(dns.message.Message):
|
||||
def __init__(self, zone, rdclass=dns.rdataclass.IN, keyring=None,
|
||||
keyname=None, keyalgorithm=dns.tsig.default_algorithm):
|
||||
"""Initialize a new DNS Update object.
|
||||
|
||||
@param zone: The zone which is being updated.
|
||||
@type zone: A dns.name.Name or string
|
||||
@param rdclass: The class of the zone; defaults to dns.rdataclass.IN.
|
||||
@type rdclass: An int designating the class, or a string whose value
|
||||
is the name of a class.
|
||||
@param keyring: The TSIG keyring to use; defaults to None.
|
||||
@type keyring: dict
|
||||
@param keyname: The name of the TSIG key to use; defaults to None.
|
||||
The key must be defined in the keyring. If a keyring is specified
|
||||
but a keyname is not, then the key used will be the first key in the
|
||||
keyring. Note that the order of keys in a dictionary is not defined,
|
||||
so applications should supply a keyname when a keyring is used, unless
|
||||
they know the keyring contains only one key.
|
||||
@type keyname: dns.name.Name or string
|
||||
@param keyalgorithm: The TSIG algorithm to use; defaults to
|
||||
dns.tsig.default_algorithm
|
||||
@type keyalgorithm: string
|
||||
"""
|
||||
super(Update, self).__init__()
|
||||
self.flags |= dns.opcode.to_flags(dns.opcode.UPDATE)
|
||||
if isinstance(zone, (str, unicode)):
|
||||
zone = dns.name.from_text(zone)
|
||||
self.origin = zone
|
||||
if isinstance(rdclass, str):
|
||||
rdclass = dns.rdataclass.from_text(rdclass)
|
||||
self.zone_rdclass = rdclass
|
||||
self.find_rrset(self.question, self.origin, rdclass, dns.rdatatype.SOA,
|
||||
create=True, force_unique=True)
|
||||
if not keyring is None:
|
||||
self.use_tsig(keyring, keyname, keyalgorithm)
|
||||
|
||||
def _add_rr(self, name, ttl, rd, deleting=None, section=None):
|
||||
"""Add a single RR to the update section."""
|
||||
|
||||
if section is None:
|
||||
section = self.authority
|
||||
covers = rd.covers()
|
||||
rrset = self.find_rrset(section, name, self.zone_rdclass, rd.rdtype,
|
||||
covers, deleting, True, True)
|
||||
rrset.add(rd, ttl)
|
||||
|
||||
def _add(self, replace, section, name, *args):
|
||||
"""Add records. The first argument is the replace mode. If
|
||||
false, RRs are added to an existing RRset; if true, the RRset
|
||||
is replaced with the specified contents. The second
|
||||
argument is the section to add to. The third argument
|
||||
is always a name. The other arguments can be:
|
||||
|
||||
- rdataset...
|
||||
|
||||
- ttl, rdata...
|
||||
|
||||
- ttl, rdtype, string..."""
|
||||
|
||||
if isinstance(name, (str, unicode)):
|
||||
name = dns.name.from_text(name, None)
|
||||
if isinstance(args[0], dns.rdataset.Rdataset):
|
||||
for rds in args:
|
||||
if replace:
|
||||
self.delete(name, rds.rdtype)
|
||||
for rd in rds:
|
||||
self._add_rr(name, rds.ttl, rd, section=section)
|
||||
else:
|
||||
args = list(args)
|
||||
ttl = int(args.pop(0))
|
||||
if isinstance(args[0], dns.rdata.Rdata):
|
||||
if replace:
|
||||
self.delete(name, args[0].rdtype)
|
||||
for rd in args:
|
||||
self._add_rr(name, ttl, rd, section=section)
|
||||
else:
|
||||
rdtype = args.pop(0)
|
||||
if isinstance(rdtype, str):
|
||||
rdtype = dns.rdatatype.from_text(rdtype)
|
||||
if replace:
|
||||
self.delete(name, rdtype)
|
||||
for s in args:
|
||||
rd = dns.rdata.from_text(self.zone_rdclass, rdtype, s,
|
||||
self.origin)
|
||||
self._add_rr(name, ttl, rd, section=section)
|
||||
|
||||
def add(self, name, *args):
|
||||
"""Add records. The first argument is always a name. The other
|
||||
arguments can be:
|
||||
|
||||
- rdataset...
|
||||
|
||||
- ttl, rdata...
|
||||
|
||||
- ttl, rdtype, string..."""
|
||||
self._add(False, self.authority, name, *args)
|
||||
|
||||
def delete(self, name, *args):
|
||||
"""Delete records. The first argument is always a name. The other
|
||||
arguments can be:
|
||||
|
||||
- I{nothing}
|
||||
|
||||
- rdataset...
|
||||
|
||||
- rdata...
|
||||
|
||||
- rdtype, [string...]"""
|
||||
|
||||
if isinstance(name, (str, unicode)):
|
||||
name = dns.name.from_text(name, None)
|
||||
if len(args) == 0:
|
||||
rrset = self.find_rrset(self.authority, name, dns.rdataclass.ANY,
|
||||
dns.rdatatype.ANY, dns.rdatatype.NONE,
|
||||
dns.rdatatype.ANY, True, True)
|
||||
elif isinstance(args[0], dns.rdataset.Rdataset):
|
||||
for rds in args:
|
||||
for rd in rds:
|
||||
self._add_rr(name, 0, rd, dns.rdataclass.NONE)
|
||||
else:
|
||||
args = list(args)
|
||||
if isinstance(args[0], dns.rdata.Rdata):
|
||||
for rd in args:
|
||||
self._add_rr(name, 0, rd, dns.rdataclass.NONE)
|
||||
else:
|
||||
rdtype = args.pop(0)
|
||||
if isinstance(rdtype, str):
|
||||
rdtype = dns.rdatatype.from_text(rdtype)
|
||||
if len(args) == 0:
|
||||
rrset = self.find_rrset(self.authority, name,
|
||||
self.zone_rdclass, rdtype,
|
||||
dns.rdatatype.NONE,
|
||||
dns.rdataclass.ANY,
|
||||
True, True)
|
||||
else:
|
||||
for s in args:
|
||||
rd = dns.rdata.from_text(self.zone_rdclass, rdtype, s,
|
||||
self.origin)
|
||||
self._add_rr(name, 0, rd, dns.rdataclass.NONE)
|
||||
|
||||
def replace(self, name, *args):
|
||||
"""Replace records. The first argument is always a name. The other
|
||||
arguments can be:
|
||||
|
||||
- rdataset...
|
||||
|
||||
- ttl, rdata...
|
||||
|
||||
- ttl, rdtype, string...
|
||||
|
||||
Note that if you want to replace the entire node, you should do
|
||||
a delete of the name followed by one or more calls to add."""
|
||||
|
||||
self._add(True, self.authority, name, *args)
|
||||
|
||||
def present(self, name, *args):
|
||||
"""Require that an owner name (and optionally an rdata type,
|
||||
or specific rdataset) exists as a prerequisite to the
|
||||
execution of the update. The first argument is always a name.
|
||||
The other arguments can be:
|
||||
|
||||
- rdataset...
|
||||
|
||||
- rdata...
|
||||
|
||||
- rdtype, string..."""
|
||||
|
||||
if isinstance(name, (str, unicode)):
|
||||
name = dns.name.from_text(name, None)
|
||||
if len(args) == 0:
|
||||
rrset = self.find_rrset(self.answer, name,
|
||||
dns.rdataclass.ANY, dns.rdatatype.ANY,
|
||||
dns.rdatatype.NONE, None,
|
||||
True, True)
|
||||
elif isinstance(args[0], dns.rdataset.Rdataset) or \
|
||||
isinstance(args[0], dns.rdata.Rdata) or \
|
||||
len(args) > 1:
|
||||
if not isinstance(args[0], dns.rdataset.Rdataset):
|
||||
# Add a 0 TTL
|
||||
args = list(args)
|
||||
args.insert(0, 0)
|
||||
self._add(False, self.answer, name, *args)
|
||||
else:
|
||||
rdtype = args[0]
|
||||
if isinstance(rdtype, str):
|
||||
rdtype = dns.rdatatype.from_text(rdtype)
|
||||
rrset = self.find_rrset(self.answer, name,
|
||||
dns.rdataclass.ANY, rdtype,
|
||||
dns.rdatatype.NONE, None,
|
||||
True, True)
|
||||
|
||||
def absent(self, name, rdtype=None):
|
||||
"""Require that an owner name (and optionally an rdata type) does
|
||||
not exist as a prerequisite to the execution of the update."""
|
||||
|
||||
if isinstance(name, (str, unicode)):
|
||||
name = dns.name.from_text(name, None)
|
||||
if rdtype is None:
|
||||
rrset = self.find_rrset(self.answer, name,
|
||||
dns.rdataclass.NONE, dns.rdatatype.ANY,
|
||||
dns.rdatatype.NONE, None,
|
||||
True, True)
|
||||
else:
|
||||
if isinstance(rdtype, str):
|
||||
rdtype = dns.rdatatype.from_text(rdtype)
|
||||
rrset = self.find_rrset(self.answer, name,
|
||||
dns.rdataclass.NONE, rdtype,
|
||||
dns.rdatatype.NONE, None,
|
||||
True, True)
|
||||
|
||||
def to_wire(self, origin=None, max_size=65535):
|
||||
"""Return a string containing the update in DNS compressed wire
|
||||
format.
|
||||
@rtype: string"""
|
||||
if origin is None:
|
||||
origin = self.origin
|
||||
return super(Update, self).to_wire(origin, max_size)
|
@ -1,34 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""dnspython release version information."""
|
||||
|
||||
MAJOR = 1
|
||||
MINOR = 8
|
||||
MICRO = 0
|
||||
RELEASELEVEL = 0x0f
|
||||
SERIAL = 0
|
||||
|
||||
if RELEASELEVEL == 0x0f:
|
||||
version = '%d.%d.%d' % (MAJOR, MINOR, MICRO)
|
||||
elif RELEASELEVEL == 0x00:
|
||||
version = '%d.%d.%dx%d' % \
|
||||
(MAJOR, MINOR, MICRO, SERIAL)
|
||||
else:
|
||||
version = '%d.%d.%d%x%d' % \
|
||||
(MAJOR, MINOR, MICRO, RELEASELEVEL, SERIAL)
|
||||
|
||||
hexversion = MAJOR << 24 | MINOR << 16 | MICRO << 8 | RELEASELEVEL << 4 | \
|
||||
SERIAL
|
@ -1,855 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
"""DNS Zones."""
|
||||
|
||||
from __future__ import generators
|
||||
|
||||
import sys
|
||||
|
||||
import dns.exception
|
||||
import dns.name
|
||||
import dns.node
|
||||
import dns.rdataclass
|
||||
import dns.rdatatype
|
||||
import dns.rdata
|
||||
import dns.rrset
|
||||
import dns.tokenizer
|
||||
import dns.ttl
|
||||
|
||||
class BadZone(dns.exception.DNSException):
|
||||
"""The zone is malformed."""
|
||||
pass
|
||||
|
||||
class NoSOA(BadZone):
|
||||
"""The zone has no SOA RR at its origin."""
|
||||
pass
|
||||
|
||||
class NoNS(BadZone):
|
||||
"""The zone has no NS RRset at its origin."""
|
||||
pass
|
||||
|
||||
class UnknownOrigin(BadZone):
|
||||
"""The zone's origin is unknown."""
|
||||
pass
|
||||
|
||||
class Zone(object):
|
||||
"""A DNS zone.
|
||||
|
||||
A Zone is a mapping from names to nodes. The zone object may be
|
||||
treated like a Python dictionary, e.g. zone[name] will retrieve
|
||||
the node associated with that name. The I{name} may be a
|
||||
dns.name.Name object, or it may be a string. In the either case,
|
||||
if the name is relative it is treated as relative to the origin of
|
||||
the zone.
|
||||
|
||||
@ivar rdclass: The zone's rdata class; the default is class IN.
|
||||
@type rdclass: int
|
||||
@ivar origin: The origin of the zone.
|
||||
@type origin: dns.name.Name object
|
||||
@ivar nodes: A dictionary mapping the names of nodes in the zone to the
|
||||
nodes themselves.
|
||||
@type nodes: dict
|
||||
@ivar relativize: should names in the zone be relativized?
|
||||
@type relativize: bool
|
||||
@cvar node_factory: the factory used to create a new node
|
||||
@type node_factory: class or callable
|
||||
"""
|
||||
|
||||
node_factory = dns.node.Node
|
||||
|
||||
__slots__ = ['rdclass', 'origin', 'nodes', 'relativize']
|
||||
|
||||
def __init__(self, origin, rdclass=dns.rdataclass.IN, relativize=True):
|
||||
"""Initialize a zone object.
|
||||
|
||||
@param origin: The origin of the zone.
|
||||
@type origin: dns.name.Name object
|
||||
@param rdclass: The zone's rdata class; the default is class IN.
|
||||
@type rdclass: int"""
|
||||
|
||||
self.rdclass = rdclass
|
||||
self.origin = origin
|
||||
self.nodes = {}
|
||||
self.relativize = relativize
|
||||
|
||||
def __eq__(self, other):
|
||||
"""Two zones are equal if they have the same origin, class, and
|
||||
nodes.
|
||||
@rtype: bool
|
||||
"""
|
||||
|
||||
if not isinstance(other, Zone):
|
||||
return False
|
||||
if self.rdclass != other.rdclass or \
|
||||
self.origin != other.origin or \
|
||||
self.nodes != other.nodes:
|
||||
return False
|
||||
return True
|
||||
|
||||
def __ne__(self, other):
|
||||
"""Are two zones not equal?
|
||||
@rtype: bool
|
||||
"""
|
||||
|
||||
return not self.__eq__(other)
|
||||
|
||||
def _validate_name(self, name):
|
||||
if isinstance(name, (str, unicode)):
|
||||
name = dns.name.from_text(name, None)
|
||||
elif not isinstance(name, dns.name.Name):
|
||||
raise KeyError("name parameter must be convertable to a DNS name")
|
||||
if name.is_absolute():
|
||||
if not name.is_subdomain(self.origin):
|
||||
raise KeyError("name parameter must be a subdomain of the zone origin")
|
||||
if self.relativize:
|
||||
name = name.relativize(self.origin)
|
||||
return name
|
||||
|
||||
def __getitem__(self, key):
|
||||
key = self._validate_name(key)
|
||||
return self.nodes[key]
|
||||
|
||||
def __setitem__(self, key, value):
|
||||
key = self._validate_name(key)
|
||||
self.nodes[key] = value
|
||||
|
||||
def __delitem__(self, key):
|
||||
key = self._validate_name(key)
|
||||
del self.nodes[key]
|
||||
|
||||
def __iter__(self):
|
||||
return self.nodes.iterkeys()
|
||||
|
||||
def iterkeys(self):
|
||||
return self.nodes.iterkeys()
|
||||
|
||||
def keys(self):
|
||||
return self.nodes.keys()
|
||||
|
||||
def itervalues(self):
|
||||
return self.nodes.itervalues()
|
||||
|
||||
def values(self):
|
||||
return self.nodes.values()
|
||||
|
||||
def iteritems(self):
|
||||
return self.nodes.iteritems()
|
||||
|
||||
def items(self):
|
||||
return self.nodes.items()
|
||||
|
||||
def get(self, key):
|
||||
key = self._validate_name(key)
|
||||
return self.nodes.get(key)
|
||||
|
||||
def __contains__(self, other):
|
||||
return other in self.nodes
|
||||
|
||||
def find_node(self, name, create=False):
|
||||
"""Find a node in the zone, possibly creating it.
|
||||
|
||||
@param name: the name of the node to find
|
||||
@type name: dns.name.Name object or string
|
||||
@param create: should the node be created if it doesn't exist?
|
||||
@type create: bool
|
||||
@raises KeyError: the name is not known and create was not specified.
|
||||
@rtype: dns.node.Node object
|
||||
"""
|
||||
|
||||
name = self._validate_name(name)
|
||||
node = self.nodes.get(name)
|
||||
if node is None:
|
||||
if not create:
|
||||
raise KeyError
|
||||
node = self.node_factory()
|
||||
self.nodes[name] = node
|
||||
return node
|
||||
|
||||
def get_node(self, name, create=False):
|
||||
"""Get a node in the zone, possibly creating it.
|
||||
|
||||
This method is like L{find_node}, except it returns None instead
|
||||
of raising an exception if the node does not exist and creation
|
||||
has not been requested.
|
||||
|
||||
@param name: the name of the node to find
|
||||
@type name: dns.name.Name object or string
|
||||
@param create: should the node be created if it doesn't exist?
|
||||
@type create: bool
|
||||
@rtype: dns.node.Node object or None
|
||||
"""
|
||||
|
||||
try:
|
||||
node = self.find_node(name, create)
|
||||
except KeyError:
|
||||
node = None
|
||||
return node
|
||||
|
||||
def delete_node(self, name):
|
||||
"""Delete the specified node if it exists.
|
||||
|
||||
It is not an error if the node does not exist.
|
||||
"""
|
||||
|
||||
name = self._validate_name(name)
|
||||
if self.nodes.has_key(name):
|
||||
del self.nodes[name]
|
||||
|
||||
def find_rdataset(self, name, rdtype, covers=dns.rdatatype.NONE,
|
||||
create=False):
|
||||
"""Look for rdata with the specified name and type in the zone,
|
||||
and return an rdataset encapsulating it.
|
||||
|
||||
The I{name}, I{rdtype}, and I{covers} parameters may be
|
||||
strings, in which case they will be converted to their proper
|
||||
type.
|
||||
|
||||
The rdataset returned is not a copy; changes to it will change
|
||||
the zone.
|
||||
|
||||
KeyError is raised if the name or type are not found.
|
||||
Use L{get_rdataset} if you want to have None returned instead.
|
||||
|
||||
@param name: the owner name to look for
|
||||
@type name: DNS.name.Name object or string
|
||||
@param rdtype: the rdata type desired
|
||||
@type rdtype: int or string
|
||||
@param covers: the covered type (defaults to None)
|
||||
@type covers: int or string
|
||||
@param create: should the node and rdataset be created if they do not
|
||||
exist?
|
||||
@type create: bool
|
||||
@raises KeyError: the node or rdata could not be found
|
||||
@rtype: dns.rrset.RRset object
|
||||
"""
|
||||
|
||||
name = self._validate_name(name)
|
||||
if isinstance(rdtype, str):
|
||||
rdtype = dns.rdatatype.from_text(rdtype)
|
||||
if isinstance(covers, str):
|
||||
covers = dns.rdatatype.from_text(covers)
|
||||
node = self.find_node(name, create)
|
||||
return node.find_rdataset(self.rdclass, rdtype, covers, create)
|
||||
|
||||
def get_rdataset(self, name, rdtype, covers=dns.rdatatype.NONE,
|
||||
create=False):
|
||||
"""Look for rdata with the specified name and type in the zone,
|
||||
and return an rdataset encapsulating it.
|
||||
|
||||
The I{name}, I{rdtype}, and I{covers} parameters may be
|
||||
strings, in which case they will be converted to their proper
|
||||
type.
|
||||
|
||||
The rdataset returned is not a copy; changes to it will change
|
||||
the zone.
|
||||
|
||||
None is returned if the name or type are not found.
|
||||
Use L{find_rdataset} if you want to have KeyError raised instead.
|
||||
|
||||
@param name: the owner name to look for
|
||||
@type name: DNS.name.Name object or string
|
||||
@param rdtype: the rdata type desired
|
||||
@type rdtype: int or string
|
||||
@param covers: the covered type (defaults to None)
|
||||
@type covers: int or string
|
||||
@param create: should the node and rdataset be created if they do not
|
||||
exist?
|
||||
@type create: bool
|
||||
@rtype: dns.rrset.RRset object
|
||||
"""
|
||||
|
||||
try:
|
||||
rdataset = self.find_rdataset(name, rdtype, covers, create)
|
||||
except KeyError:
|
||||
rdataset = None
|
||||
return rdataset
|
||||
|
||||
def delete_rdataset(self, name, rdtype, covers=dns.rdatatype.NONE):
|
||||
"""Delete the rdataset matching I{rdtype} and I{covers}, if it
|
||||
exists at the node specified by I{name}.
|
||||
|
||||
The I{name}, I{rdtype}, and I{covers} parameters may be
|
||||
strings, in which case they will be converted to their proper
|
||||
type.
|
||||
|
||||
It is not an error if the node does not exist, or if there is no
|
||||
matching rdataset at the node.
|
||||
|
||||
If the node has no rdatasets after the deletion, it will itself
|
||||
be deleted.
|
||||
|
||||
@param name: the owner name to look for
|
||||
@type name: DNS.name.Name object or string
|
||||
@param rdtype: the rdata type desired
|
||||
@type rdtype: int or string
|
||||
@param covers: the covered type (defaults to None)
|
||||
@type covers: int or string
|
||||
"""
|
||||
|
||||
name = self._validate_name(name)
|
||||
if isinstance(rdtype, str):
|
||||
rdtype = dns.rdatatype.from_text(rdtype)
|
||||
if isinstance(covers, str):
|
||||
covers = dns.rdatatype.from_text(covers)
|
||||
node = self.get_node(name)
|
||||
if not node is None:
|
||||
node.delete_rdataset(self.rdclass, rdtype, covers)
|
||||
if len(node) == 0:
|
||||
self.delete_node(name)
|
||||
|
||||
def replace_rdataset(self, name, replacement):
|
||||
"""Replace an rdataset at name.
|
||||
|
||||
It is not an error if there is no rdataset matching I{replacement}.
|
||||
|
||||
Ownership of the I{replacement} object is transferred to the zone;
|
||||
in other words, this method does not store a copy of I{replacement}
|
||||
at the node, it stores I{replacement} itself.
|
||||
|
||||
If the I{name} node does not exist, it is created.
|
||||
|
||||
@param name: the owner name
|
||||
@type name: DNS.name.Name object or string
|
||||
@param replacement: the replacement rdataset
|
||||
@type replacement: dns.rdataset.Rdataset
|
||||
"""
|
||||
|
||||
if replacement.rdclass != self.rdclass:
|
||||
raise ValueError('replacement.rdclass != zone.rdclass')
|
||||
node = self.find_node(name, True)
|
||||
node.replace_rdataset(replacement)
|
||||
|
||||
def find_rrset(self, name, rdtype, covers=dns.rdatatype.NONE):
|
||||
"""Look for rdata with the specified name and type in the zone,
|
||||
and return an RRset encapsulating it.
|
||||
|
||||
The I{name}, I{rdtype}, and I{covers} parameters may be
|
||||
strings, in which case they will be converted to their proper
|
||||
type.
|
||||
|
||||
This method is less efficient than the similar
|
||||
L{find_rdataset} because it creates an RRset instead of
|
||||
returning the matching rdataset. It may be more convenient
|
||||
for some uses since it returns an object which binds the owner
|
||||
name to the rdata.
|
||||
|
||||
This method may not be used to create new nodes or rdatasets;
|
||||
use L{find_rdataset} instead.
|
||||
|
||||
KeyError is raised if the name or type are not found.
|
||||
Use L{get_rrset} if you want to have None returned instead.
|
||||
|
||||
@param name: the owner name to look for
|
||||
@type name: DNS.name.Name object or string
|
||||
@param rdtype: the rdata type desired
|
||||
@type rdtype: int or string
|
||||
@param covers: the covered type (defaults to None)
|
||||
@type covers: int or string
|
||||
@raises KeyError: the node or rdata could not be found
|
||||
@rtype: dns.rrset.RRset object
|
||||
"""
|
||||
|
||||
name = self._validate_name(name)
|
||||
if isinstance(rdtype, str):
|
||||
rdtype = dns.rdatatype.from_text(rdtype)
|
||||
if isinstance(covers, str):
|
||||
covers = dns.rdatatype.from_text(covers)
|
||||
rdataset = self.nodes[name].find_rdataset(self.rdclass, rdtype, covers)
|
||||
rrset = dns.rrset.RRset(name, self.rdclass, rdtype, covers)
|
||||
rrset.update(rdataset)
|
||||
return rrset
|
||||
|
||||
def get_rrset(self, name, rdtype, covers=dns.rdatatype.NONE):
|
||||
"""Look for rdata with the specified name and type in the zone,
|
||||
and return an RRset encapsulating it.
|
||||
|
||||
The I{name}, I{rdtype}, and I{covers} parameters may be
|
||||
strings, in which case they will be converted to their proper
|
||||
type.
|
||||
|
||||
This method is less efficient than the similar L{get_rdataset}
|
||||
because it creates an RRset instead of returning the matching
|
||||
rdataset. It may be more convenient for some uses since it
|
||||
returns an object which binds the owner name to the rdata.
|
||||
|
||||
This method may not be used to create new nodes or rdatasets;
|
||||
use L{find_rdataset} instead.
|
||||
|
||||
None is returned if the name or type are not found.
|
||||
Use L{find_rrset} if you want to have KeyError raised instead.
|
||||
|
||||
@param name: the owner name to look for
|
||||
@type name: DNS.name.Name object or string
|
||||
@param rdtype: the rdata type desired
|
||||
@type rdtype: int or string
|
||||
@param covers: the covered type (defaults to None)
|
||||
@type covers: int or string
|
||||
@rtype: dns.rrset.RRset object
|
||||
"""
|
||||
|
||||
try:
|
||||
rrset = self.find_rrset(name, rdtype, covers)
|
||||
except KeyError:
|
||||
rrset = None
|
||||
return rrset
|
||||
|
||||
def iterate_rdatasets(self, rdtype=dns.rdatatype.ANY,
|
||||
covers=dns.rdatatype.NONE):
|
||||
"""Return a generator which yields (name, rdataset) tuples for
|
||||
all rdatasets in the zone which have the specified I{rdtype}
|
||||
and I{covers}. If I{rdtype} is dns.rdatatype.ANY, the default,
|
||||
then all rdatasets will be matched.
|
||||
|
||||
@param rdtype: int or string
|
||||
@type rdtype: int or string
|
||||
@param covers: the covered type (defaults to None)
|
||||
@type covers: int or string
|
||||
"""
|
||||
|
||||
if isinstance(rdtype, str):
|
||||
rdtype = dns.rdatatype.from_text(rdtype)
|
||||
if isinstance(covers, str):
|
||||
covers = dns.rdatatype.from_text(covers)
|
||||
for (name, node) in self.iteritems():
|
||||
for rds in node:
|
||||
if rdtype == dns.rdatatype.ANY or \
|
||||
(rds.rdtype == rdtype and rds.covers == covers):
|
||||
yield (name, rds)
|
||||
|
||||
def iterate_rdatas(self, rdtype=dns.rdatatype.ANY,
|
||||
covers=dns.rdatatype.NONE):
|
||||
"""Return a generator which yields (name, ttl, rdata) tuples for
|
||||
all rdatas in the zone which have the specified I{rdtype}
|
||||
and I{covers}. If I{rdtype} is dns.rdatatype.ANY, the default,
|
||||
then all rdatas will be matched.
|
||||
|
||||
@param rdtype: int or string
|
||||
@type rdtype: int or string
|
||||
@param covers: the covered type (defaults to None)
|
||||
@type covers: int or string
|
||||
"""
|
||||
|
||||
if isinstance(rdtype, str):
|
||||
rdtype = dns.rdatatype.from_text(rdtype)
|
||||
if isinstance(covers, str):
|
||||
covers = dns.rdatatype.from_text(covers)
|
||||
for (name, node) in self.iteritems():
|
||||
for rds in node:
|
||||
if rdtype == dns.rdatatype.ANY or \
|
||||
(rds.rdtype == rdtype and rds.covers == covers):
|
||||
for rdata in rds:
|
||||
yield (name, rds.ttl, rdata)
|
||||
|
||||
def to_file(self, f, sorted=True, relativize=True, nl=None):
|
||||
"""Write a zone to a file.
|
||||
|
||||
@param f: file or string. If I{f} is a string, it is treated
|
||||
as the name of a file to open.
|
||||
@param sorted: if True, the file will be written with the
|
||||
names sorted in DNSSEC order from least to greatest. Otherwise
|
||||
the names will be written in whatever order they happen to have
|
||||
in the zone's dictionary.
|
||||
@param relativize: if True, domain names in the output will be
|
||||
relativized to the zone's origin (if possible).
|
||||
@type relativize: bool
|
||||
@param nl: The end of line string. If not specified, the
|
||||
output will use the platform's native end-of-line marker (i.e.
|
||||
LF on POSIX, CRLF on Windows, CR on Macintosh).
|
||||
@type nl: string or None
|
||||
"""
|
||||
|
||||
if sys.hexversion >= 0x02030000:
|
||||
# allow Unicode filenames
|
||||
str_type = basestring
|
||||
else:
|
||||
str_type = str
|
||||
if nl is None:
|
||||
opts = 'w'
|
||||
else:
|
||||
opts = 'wb'
|
||||
if isinstance(f, str_type):
|
||||
f = file(f, opts)
|
||||
want_close = True
|
||||
else:
|
||||
want_close = False
|
||||
try:
|
||||
if sorted:
|
||||
names = self.keys()
|
||||
names.sort()
|
||||
else:
|
||||
names = self.iterkeys()
|
||||
for n in names:
|
||||
l = self[n].to_text(n, origin=self.origin,
|
||||
relativize=relativize)
|
||||
if nl is None:
|
||||
print >> f, l
|
||||
else:
|
||||
f.write(l)
|
||||
f.write(nl)
|
||||
finally:
|
||||
if want_close:
|
||||
f.close()
|
||||
|
||||
def check_origin(self):
|
||||
"""Do some simple checking of the zone's origin.
|
||||
|
||||
@raises dns.zone.NoSOA: there is no SOA RR
|
||||
@raises dns.zone.NoNS: there is no NS RRset
|
||||
@raises KeyError: there is no origin node
|
||||
"""
|
||||
if self.relativize:
|
||||
name = dns.name.empty
|
||||
else:
|
||||
name = self.origin
|
||||
if self.get_rdataset(name, dns.rdatatype.SOA) is None:
|
||||
raise NoSOA
|
||||
if self.get_rdataset(name, dns.rdatatype.NS) is None:
|
||||
raise NoNS
|
||||
|
||||
|
||||
class _MasterReader(object):
|
||||
"""Read a DNS master file
|
||||
|
||||
@ivar tok: The tokenizer
|
||||
@type tok: dns.tokenizer.Tokenizer object
|
||||
@ivar ttl: The default TTL
|
||||
@type ttl: int
|
||||
@ivar last_name: The last name read
|
||||
@type last_name: dns.name.Name object
|
||||
@ivar current_origin: The current origin
|
||||
@type current_origin: dns.name.Name object
|
||||
@ivar relativize: should names in the zone be relativized?
|
||||
@type relativize: bool
|
||||
@ivar zone: the zone
|
||||
@type zone: dns.zone.Zone object
|
||||
@ivar saved_state: saved reader state (used when processing $INCLUDE)
|
||||
@type saved_state: list of (tokenizer, current_origin, last_name, file)
|
||||
tuples.
|
||||
@ivar current_file: the file object of the $INCLUDed file being parsed
|
||||
(None if no $INCLUDE is active).
|
||||
@ivar allow_include: is $INCLUDE allowed?
|
||||
@type allow_include: bool
|
||||
@ivar check_origin: should sanity checks of the origin node be done?
|
||||
The default is True.
|
||||
@type check_origin: bool
|
||||
"""
|
||||
|
||||
def __init__(self, tok, origin, rdclass, relativize, zone_factory=Zone,
|
||||
allow_include=False, check_origin=True):
|
||||
if isinstance(origin, (str, unicode)):
|
||||
origin = dns.name.from_text(origin)
|
||||
self.tok = tok
|
||||
self.current_origin = origin
|
||||
self.relativize = relativize
|
||||
self.ttl = 0
|
||||
self.last_name = None
|
||||
self.zone = zone_factory(origin, rdclass, relativize=relativize)
|
||||
self.saved_state = []
|
||||
self.current_file = None
|
||||
self.allow_include = allow_include
|
||||
self.check_origin = check_origin
|
||||
|
||||
def _eat_line(self):
|
||||
while 1:
|
||||
token = self.tok.get()
|
||||
if token.is_eol_or_eof():
|
||||
break
|
||||
|
||||
def _rr_line(self):
|
||||
"""Process one line from a DNS master file."""
|
||||
# Name
|
||||
if self.current_origin is None:
|
||||
raise UnknownOrigin
|
||||
token = self.tok.get(want_leading = True)
|
||||
if not token.is_whitespace():
|
||||
self.last_name = dns.name.from_text(token.value, self.current_origin)
|
||||
else:
|
||||
token = self.tok.get()
|
||||
if token.is_eol_or_eof():
|
||||
# treat leading WS followed by EOL/EOF as if they were EOL/EOF.
|
||||
return
|
||||
self.tok.unget(token)
|
||||
name = self.last_name
|
||||
if not name.is_subdomain(self.zone.origin):
|
||||
self._eat_line()
|
||||
return
|
||||
if self.relativize:
|
||||
name = name.relativize(self.zone.origin)
|
||||
token = self.tok.get()
|
||||
if not token.is_identifier():
|
||||
raise dns.exception.SyntaxError
|
||||
# TTL
|
||||
try:
|
||||
ttl = dns.ttl.from_text(token.value)
|
||||
token = self.tok.get()
|
||||
if not token.is_identifier():
|
||||
raise dns.exception.SyntaxError
|
||||
except dns.ttl.BadTTL:
|
||||
ttl = self.ttl
|
||||
# Class
|
||||
try:
|
||||
rdclass = dns.rdataclass.from_text(token.value)
|
||||
token = self.tok.get()
|
||||
if not token.is_identifier():
|
||||
raise dns.exception.SyntaxError
|
||||
except dns.exception.SyntaxError:
|
||||
raise dns.exception.SyntaxError
|
||||
except:
|
||||
rdclass = self.zone.rdclass
|
||||
if rdclass != self.zone.rdclass:
|
||||
raise dns.exception.SyntaxError("RR class is not zone's class")
|
||||
# Type
|
||||
try:
|
||||
rdtype = dns.rdatatype.from_text(token.value)
|
||||
except:
|
||||
raise dns.exception.SyntaxError("unknown rdatatype '%s'" % token.value)
|
||||
n = self.zone.nodes.get(name)
|
||||
if n is None:
|
||||
n = self.zone.node_factory()
|
||||
self.zone.nodes[name] = n
|
||||
try:
|
||||
rd = dns.rdata.from_text(rdclass, rdtype, self.tok,
|
||||
self.current_origin, False)
|
||||
except dns.exception.SyntaxError:
|
||||
# Catch and reraise.
|
||||
(ty, va) = sys.exc_info()[:2]
|
||||
raise va
|
||||
except:
|
||||
# All exceptions that occur in the processing of rdata
|
||||
# are treated as syntax errors. This is not strictly
|
||||
# correct, but it is correct almost all of the time.
|
||||
# We convert them to syntax errors so that we can emit
|
||||
# helpful filename:line info.
|
||||
(ty, va) = sys.exc_info()[:2]
|
||||
raise dns.exception.SyntaxError("caught exception %s: %s" % (str(ty), str(va)))
|
||||
|
||||
rd.choose_relativity(self.zone.origin, self.relativize)
|
||||
covers = rd.covers()
|
||||
rds = n.find_rdataset(rdclass, rdtype, covers, True)
|
||||
rds.add(rd, ttl)
|
||||
|
||||
def read(self):
|
||||
"""Read a DNS master file and build a zone object.
|
||||
|
||||
@raises dns.zone.NoSOA: No SOA RR was found at the zone origin
|
||||
@raises dns.zone.NoNS: No NS RRset was found at the zone origin
|
||||
"""
|
||||
|
||||
try:
|
||||
while 1:
|
||||
token = self.tok.get(True, True).unescape()
|
||||
if token.is_eof():
|
||||
if not self.current_file is None:
|
||||
self.current_file.close()
|
||||
if len(self.saved_state) > 0:
|
||||
(self.tok,
|
||||
self.current_origin,
|
||||
self.last_name,
|
||||
self.current_file,
|
||||
self.ttl) = self.saved_state.pop(-1)
|
||||
continue
|
||||
break
|
||||
elif token.is_eol():
|
||||
continue
|
||||
elif token.is_comment():
|
||||
self.tok.get_eol()
|
||||
continue
|
||||
elif token.value[0] == '$':
|
||||
u = token.value.upper()
|
||||
if u == '$TTL':
|
||||
token = self.tok.get()
|
||||
if not token.is_identifier():
|
||||
raise dns.exception.SyntaxError("bad $TTL")
|
||||
self.ttl = dns.ttl.from_text(token.value)
|
||||
self.tok.get_eol()
|
||||
elif u == '$ORIGIN':
|
||||
self.current_origin = self.tok.get_name()
|
||||
self.tok.get_eol()
|
||||
if self.zone.origin is None:
|
||||
self.zone.origin = self.current_origin
|
||||
elif u == '$INCLUDE' and self.allow_include:
|
||||
token = self.tok.get()
|
||||
if not token.is_quoted_string():
|
||||
raise dns.exception.SyntaxError("bad filename in $INCLUDE")
|
||||
filename = token.value
|
||||
token = self.tok.get()
|
||||
if token.is_identifier():
|
||||
new_origin = dns.name.from_text(token.value, \
|
||||
self.current_origin)
|
||||
self.tok.get_eol()
|
||||
elif not token.is_eol_or_eof():
|
||||
raise dns.exception.SyntaxError("bad origin in $INCLUDE")
|
||||
else:
|
||||
new_origin = self.current_origin
|
||||
self.saved_state.append((self.tok,
|
||||
self.current_origin,
|
||||
self.last_name,
|
||||
self.current_file,
|
||||
self.ttl))
|
||||
self.current_file = file(filename, 'r')
|
||||
self.tok = dns.tokenizer.Tokenizer(self.current_file,
|
||||
filename)
|
||||
self.current_origin = new_origin
|
||||
else:
|
||||
raise dns.exception.SyntaxError("Unknown master file directive '" + u + "'")
|
||||
continue
|
||||
self.tok.unget(token)
|
||||
self._rr_line()
|
||||
except dns.exception.SyntaxError, detail:
|
||||
(filename, line_number) = self.tok.where()
|
||||
if detail is None:
|
||||
detail = "syntax error"
|
||||
raise dns.exception.SyntaxError("%s:%d: %s" % (filename, line_number, detail))
|
||||
|
||||
# Now that we're done reading, do some basic checking of the zone.
|
||||
if self.check_origin:
|
||||
self.zone.check_origin()
|
||||
|
||||
def from_text(text, origin = None, rdclass = dns.rdataclass.IN,
|
||||
relativize = True, zone_factory=Zone, filename=None,
|
||||
allow_include=False, check_origin=True):
|
||||
"""Build a zone object from a master file format string.
|
||||
|
||||
@param text: the master file format input
|
||||
@type text: string.
|
||||
@param origin: The origin of the zone; if not specified, the first
|
||||
$ORIGIN statement in the master file will determine the origin of the
|
||||
zone.
|
||||
@type origin: dns.name.Name object or string
|
||||
@param rdclass: The zone's rdata class; the default is class IN.
|
||||
@type rdclass: int
|
||||
@param relativize: should names be relativized? The default is True
|
||||
@type relativize: bool
|
||||
@param zone_factory: The zone factory to use
|
||||
@type zone_factory: function returning a Zone
|
||||
@param filename: The filename to emit when describing where an error
|
||||
occurred; the default is '<string>'.
|
||||
@type filename: string
|
||||
@param allow_include: is $INCLUDE allowed?
|
||||
@type allow_include: bool
|
||||
@param check_origin: should sanity checks of the origin node be done?
|
||||
The default is True.
|
||||
@type check_origin: bool
|
||||
@raises dns.zone.NoSOA: No SOA RR was found at the zone origin
|
||||
@raises dns.zone.NoNS: No NS RRset was found at the zone origin
|
||||
@rtype: dns.zone.Zone object
|
||||
"""
|
||||
|
||||
# 'text' can also be a file, but we don't publish that fact
|
||||
# since it's an implementation detail. The official file
|
||||
# interface is from_file().
|
||||
|
||||
if filename is None:
|
||||
filename = '<string>'
|
||||
tok = dns.tokenizer.Tokenizer(text, filename)
|
||||
reader = _MasterReader(tok, origin, rdclass, relativize, zone_factory,
|
||||
allow_include=allow_include,
|
||||
check_origin=check_origin)
|
||||
reader.read()
|
||||
return reader.zone
|
||||
|
||||
def from_file(f, origin = None, rdclass = dns.rdataclass.IN,
|
||||
relativize = True, zone_factory=Zone, filename=None,
|
||||
allow_include=True, check_origin=True):
|
||||
"""Read a master file and build a zone object.
|
||||
|
||||
@param f: file or string. If I{f} is a string, it is treated
|
||||
as the name of a file to open.
|
||||
@param origin: The origin of the zone; if not specified, the first
|
||||
$ORIGIN statement in the master file will determine the origin of the
|
||||
zone.
|
||||
@type origin: dns.name.Name object or string
|
||||
@param rdclass: The zone's rdata class; the default is class IN.
|
||||
@type rdclass: int
|
||||
@param relativize: should names be relativized? The default is True
|
||||
@type relativize: bool
|
||||
@param zone_factory: The zone factory to use
|
||||
@type zone_factory: function returning a Zone
|
||||
@param filename: The filename to emit when describing where an error
|
||||
occurred; the default is '<file>', or the value of I{f} if I{f} is a
|
||||
string.
|
||||
@type filename: string
|
||||
@param allow_include: is $INCLUDE allowed?
|
||||
@type allow_include: bool
|
||||
@param check_origin: should sanity checks of the origin node be done?
|
||||
The default is True.
|
||||
@type check_origin: bool
|
||||
@raises dns.zone.NoSOA: No SOA RR was found at the zone origin
|
||||
@raises dns.zone.NoNS: No NS RRset was found at the zone origin
|
||||
@rtype: dns.zone.Zone object
|
||||
"""
|
||||
|
||||
if sys.hexversion >= 0x02030000:
|
||||
# allow Unicode filenames; turn on universal newline support
|
||||
str_type = basestring
|
||||
opts = 'rU'
|
||||
else:
|
||||
str_type = str
|
||||
opts = 'r'
|
||||
if isinstance(f, str_type):
|
||||
if filename is None:
|
||||
filename = f
|
||||
f = file(f, opts)
|
||||
want_close = True
|
||||
else:
|
||||
if filename is None:
|
||||
filename = '<file>'
|
||||
want_close = False
|
||||
|
||||
try:
|
||||
z = from_text(f, origin, rdclass, relativize, zone_factory,
|
||||
filename, allow_include, check_origin)
|
||||
finally:
|
||||
if want_close:
|
||||
f.close()
|
||||
return z
|
||||
|
||||
def from_xfr(xfr, zone_factory=Zone, relativize=True):
|
||||
"""Convert the output of a zone transfer generator into a zone object.
|
||||
|
||||
@param xfr: The xfr generator
|
||||
@type xfr: generator of dns.message.Message objects
|
||||
@param relativize: should names be relativized? The default is True.
|
||||
It is essential that the relativize setting matches the one specified
|
||||
to dns.query.xfr().
|
||||
@type relativize: bool
|
||||
@raises dns.zone.NoSOA: No SOA RR was found at the zone origin
|
||||
@raises dns.zone.NoNS: No NS RRset was found at the zone origin
|
||||
@rtype: dns.zone.Zone object
|
||||
"""
|
||||
|
||||
z = None
|
||||
for r in xfr:
|
||||
if z is None:
|
||||
if relativize:
|
||||
origin = r.origin
|
||||
else:
|
||||
origin = r.answer[0].name
|
||||
rdclass = r.answer[0].rdclass
|
||||
z = zone_factory(origin, rdclass, relativize=relativize)
|
||||
for rrset in r.answer:
|
||||
znode = z.nodes.get(rrset.name)
|
||||
if not znode:
|
||||
znode = z.node_factory()
|
||||
z.nodes[rrset.name] = znode
|
||||
zrds = znode.find_rdataset(rrset.rdclass, rrset.rdtype,
|
||||
rrset.covers, True)
|
||||
zrds.update_ttl(rrset.ttl)
|
||||
for rd in rrset:
|
||||
rd.choose_relativity(z.origin, relativize)
|
||||
zrds.add(rd)
|
||||
z.check_origin()
|
||||
return z
|
@ -1,51 +0,0 @@
|
||||
#!/usr/bin/env python
|
||||
|
||||
#
|
||||
# Use a TSIG-signed DDNS update to update our hostname-to-address
|
||||
# mapping.
|
||||
#
|
||||
# usage: ddns.py <ip-address>
|
||||
#
|
||||
# On linux systems, you can automatically update your DNS any time an
|
||||
# interface comes up by adding an ifup-local script that invokes this
|
||||
# python code.
|
||||
#
|
||||
# E.g. on my systems I have this
|
||||
#
|
||||
# #!/bin/sh
|
||||
#
|
||||
# DEVICE=$1
|
||||
#
|
||||
# if [ "X${DEVICE}" == "Xeth0" ]; then
|
||||
# IPADDR=`LANG= LC_ALL= ifconfig ${DEVICE} | grep 'inet addr' |
|
||||
# awk -F: '{ print $2 } ' | awk '{ print $1 }'`
|
||||
# /usr/local/sbin/ddns.py $IPADDR
|
||||
# fi
|
||||
#
|
||||
# in /etc/ifup-local.
|
||||
#
|
||||
|
||||
import sys
|
||||
|
||||
import dns.update
|
||||
import dns.query
|
||||
import dns.tsigkeyring
|
||||
|
||||
#
|
||||
# Replace the keyname and secret with appropriate values for your
|
||||
# configuration.
|
||||
#
|
||||
keyring = dns.tsigkeyring.from_text({
|
||||
'keyname.' : 'NjHwPsMKjdN++dOfE5iAiQ=='
|
||||
})
|
||||
|
||||
#
|
||||
# Replace "example." with your domain, and "host" with your hostname.
|
||||
#
|
||||
update = dns.update.Update('example.', keyring=keyring)
|
||||
update.replace('host', 300, 'A', sys.argv[1])
|
||||
|
||||
#
|
||||
# Replace "10.0.0.1" with the IP address of your master server.
|
||||
#
|
||||
response = dns.query.tcp(update, '10.0.0.1', timeout=10)
|
@ -1,6 +0,0 @@
|
||||
#!/usr/bin/env python
|
||||
|
||||
import dns.e164
|
||||
n = dns.e164.from_e164("+1 555 1212")
|
||||
print n
|
||||
print dns.e164.to_e164(n)
|
@ -1,7 +0,0 @@
|
||||
#!/usr/bin/env python
|
||||
|
||||
import dns.resolver
|
||||
|
||||
answers = dns.resolver.query('nominum.com', 'MX')
|
||||
for rdata in answers:
|
||||
print 'Host', rdata.exchange, 'has preference', rdata.preference
|
@ -1,13 +0,0 @@
|
||||
#!/usr/bin/env python
|
||||
|
||||
import dns.name
|
||||
|
||||
n = dns.name.from_text('www.dnspython.org')
|
||||
o = dns.name.from_text('dnspython.org')
|
||||
print n.is_subdomain(o) # True
|
||||
print n.is_superdomain(o) # False
|
||||
print n > o # True
|
||||
rel = n.relativize(o) # rel is the relative name www
|
||||
n2 = rel + o
|
||||
print n2 == n # True
|
||||
print n.labels # ['www', 'dnspython', 'org', '']
|
@ -1,40 +0,0 @@
|
||||
#!/usr/bin/env python
|
||||
|
||||
# Usage: reverse.py <zone_filename>...
|
||||
#
|
||||
# This demo script will load in all of the zones specified by the
|
||||
# filenames on the command line, find all the A RRs in them, and
|
||||
# construct a reverse mapping table that maps each IP address used to
|
||||
# the list of names mapping to that address. The table is then sorted
|
||||
# nicely and printed.
|
||||
#
|
||||
# Note! The zone name is taken from the basename of the filename, so
|
||||
# you must use filenames like "/wherever/you/like/dnspython.org" and
|
||||
# not something like "/wherever/you/like/foo.db" (unless you're
|
||||
# working with the ".db" GTLD, of course :)).
|
||||
#
|
||||
# If this weren't a demo script, there'd be a way of specifying the
|
||||
# origin for each zone instead of constructing it from the filename.
|
||||
|
||||
import dns.zone
|
||||
import dns.ipv4
|
||||
import os.path
|
||||
import sys
|
||||
|
||||
reverse_map = {}
|
||||
|
||||
for filename in sys.argv[1:]:
|
||||
zone = dns.zone.from_file(filename, os.path.basename(filename),
|
||||
relativize=False)
|
||||
for (name, ttl, rdata) in zone.iterate_rdatas('A'):
|
||||
try:
|
||||
reverse_map[rdata.address].append(name.to_text())
|
||||
except KeyError:
|
||||
reverse_map[rdata.address] = [name.to_text()]
|
||||
|
||||
keys = reverse_map.keys()
|
||||
keys.sort(lambda a1, a2: cmp(dns.ipv4.inet_aton(a1), dns.ipv4.inet_aton(a2)))
|
||||
for k in keys:
|
||||
v = reverse_map[k]
|
||||
v.sort()
|
||||
print k, v
|
@ -1,6 +0,0 @@
|
||||
#!/usr/bin/env python
|
||||
|
||||
import dns.reversename
|
||||
n = dns.reversename.from_address("127.0.0.1")
|
||||
print n
|
||||
print dns.reversename.to_address(n)
|
@ -1,10 +0,0 @@
|
||||
#!/usr/bin/env python
|
||||
|
||||
import dns.query
|
||||
import dns.zone
|
||||
|
||||
z = dns.zone.from_xfr(dns.query.xfr('204.152.189.147', 'dnspython.org'))
|
||||
names = z.nodes.keys()
|
||||
names.sort()
|
||||
for n in names:
|
||||
print z[n].to_text(n)
|
@ -1,63 +0,0 @@
|
||||
#!/usr/bin/env python
|
||||
#
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import sys
|
||||
from distutils.core import setup
|
||||
|
||||
version = '1.8.0'
|
||||
|
||||
kwargs = {
|
||||
'name' : 'dnspython',
|
||||
'version' : version,
|
||||
'description' : 'DNS toolkit',
|
||||
'long_description' : \
|
||||
"""dnspython is a DNS toolkit for Python. It supports almost all
|
||||
record types. It can be used for queries, zone transfers, and dynamic
|
||||
updates. It supports TSIG authenticated messages and EDNS0.
|
||||
|
||||
dnspython provides both high and low level access to DNS. The high
|
||||
level classes perform queries for data of a given name, type, and
|
||||
class, and return an answer set. The low level classes allow
|
||||
direct manipulation of DNS zones, messages, names, and records.""",
|
||||
'author' : 'Bob Halley',
|
||||
'author_email' : 'halley@dnspython.org',
|
||||
'license' : 'BSD-like',
|
||||
'url' : 'http://www.dnspython.org',
|
||||
'packages' : ['dns', 'dns.rdtypes', 'dns.rdtypes.IN', 'dns.rdtypes.ANY'],
|
||||
}
|
||||
|
||||
if sys.hexversion >= 0x02020300:
|
||||
kwargs['download_url'] = \
|
||||
'http://www.dnspython.org/kits/%s/dnspython-%s.tar.gz' % (version,
|
||||
version)
|
||||
kwargs['classifiers'] = [
|
||||
"Development Status :: 5 - Production/Stable",
|
||||
"Intended Audience :: Developers",
|
||||
"Intended Audience :: System Administrators",
|
||||
"License :: Freeware",
|
||||
"Operating System :: Microsoft :: Windows :: Windows 95/98/2000",
|
||||
"Operating System :: POSIX",
|
||||
"Programming Language :: Python",
|
||||
"Topic :: Internet :: Name Service (DNS)",
|
||||
"Topic :: Software Development :: Libraries :: Python Modules",
|
||||
]
|
||||
|
||||
if sys.hexversion >= 0x02050000:
|
||||
kwargs['requires'] = []
|
||||
kwargs['provides'] = ['dns']
|
||||
|
||||
setup(**kwargs)
|
@ -1,26 +0,0 @@
|
||||
# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
# $Id: Makefile,v 1.5 2004/03/19 00:17:27 halley Exp $
|
||||
|
||||
PYTHON=python
|
||||
|
||||
check: test
|
||||
|
||||
test:
|
||||
@for i in *.py; do \
|
||||
echo "Running $$i:"; \
|
||||
${PYTHON} $$i || exit 1; \
|
||||
done
|
@ -1,44 +0,0 @@
|
||||
# Copyright (C) 2006, 2007, 2009, 2010 Nominum, Inc.
|
||||
#
|
||||
# Permission to use, copy, modify, and distribute this software and its
|
||||
# documentation for any purpose with or without fee is hereby granted,
|
||||
# provided that the above copyright notice and this permission notice
|
||||
# appear in all copies.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
|
||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
|
||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
||||
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
|
||||
import unittest
|
||||
|
||||
import dns.rdata
|
||||
import dns.rdataclass
|
||||
import dns.rdatatype
|
||||
import dns.ttl
|
||||
|
||||
class BugsTestCase(unittest.TestCase):
|
||||
|
||||
def test_float_LOC(self):
|
||||
rdata = dns.rdata.from_text(dns.rdataclass.IN, dns.rdatatype.LOC,
|
||||
"30 30 0.000 N 100 30 0.000 W 10.00m 20m 2000m 20m")
|
||||
self.failUnless(rdata.float_latitude == 30.5)
|
||||
self.failUnless(rdata.float_longitude == -100.5)
|
||||
|
||||
def test_SOA_BIND8_TTL(self):
|
||||
rdata1 = dns.rdata.from_text(dns.rdataclass.IN, dns.rdatatype.SOA,
|
||||
"a b 100 1s 1m 1h 1d")
|
||||
rdata2 = dns.rdata.from_text(dns.rdataclass.IN, dns.rdatatype.SOA,
|
||||
"a b 100 1 60 3600 86400")
|
||||
self.failUnless(rdata1 == rdata2)
|
||||
|
||||
def test_TTL_bounds_check(self):
|
||||
def bad():
|
||||
ttl = dns.ttl.from_text("2147483648")
|
||||
self.failUnlessRaises(dns.ttl.BadTTL, bad)
|
||||
|
||||
if __name__ == '__main__':
|
||||
unittest.main()
|
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user