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python: Make top-level samba modules Python 3 compatible
New file compat.py will help with porting to Python 3. For now, it contains only PY3 variable based on six.PY3 which simplifies condition mentioned below. The added `if not PY3` conditions enable us to bootstrap running tests with Python 3 even if most modules are not ported yet. The plan is to move modules outside this condition as they are ported. The `PY3` condition is currently used only in tests and for the samba._ldb module which is not ported yet and has a lot of dependencies. The other changes are related to differences between Python 2 and 3. Python 2.6 introduced the `0o` prefix for octal literals as an alternative to plain `0`. In Python 3, support for plain `0` is dropped and octal literals have to start with `0o` prefix. Python 2.6 introduced a clearer `except` syntax: `except ExceptionType as target:` instead of `except ExceptionType, target:`. In Python 3, the old syntax is no longer allowed. Signed-off-by: Lumir Balhar <lbalhar@redhat.com> Reviewed-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This commit is contained in:
Lumir Balhar
Andrew Bartlett
parent
211df4a1e4
commit
6fa125e121
@ -25,7 +25,15 @@ __docformat__ = "restructuredText"
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import os
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import sys
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import time
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import ldb
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from samba.compat import PY3
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import samba.param
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from samba import _glue
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if not PY3:
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from samba._ldb import Ldb as _Ldb
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else:
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# samba._ldb is not yet ported to Python 3
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_Ldb = object
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def source_tree_topdir():
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@ -47,10 +55,6 @@ def in_source_tree():
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return True
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import ldb
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from samba._ldb import Ldb as _Ldb
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class Ldb(_Ldb):
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"""Simple Samba-specific LDB subclass that takes care
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of setting up the modules dir, credentials pointers, etc.
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@ -98,7 +102,7 @@ class Ldb(_Ldb):
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# TODO set debug
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def msg(l, text):
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print text
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print(text)
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#self.set_debug(msg)
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self.set_utf8_casefold()
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@ -109,7 +113,7 @@ class Ldb(_Ldb):
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if nosync_p is not None and nosync_p:
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flags |= ldb.FLG_NOSYNC
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self.set_create_perms(0600)
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self.set_create_perms(0o600)
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if url is not None:
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self.connect(url, flags, options)
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@ -141,7 +145,8 @@ class Ldb(_Ldb):
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try:
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res = self.search(base=dn, scope=ldb.SCOPE_SUBTREE, attrs=[],
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expression="(|(objectclass=user)(objectclass=computer))")
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except ldb.LdbError, (errno, _):
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except ldb.LdbError as error:
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(errno, estr) = error.args
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if errno == ldb.ERR_NO_SUCH_OBJECT:
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# Ignore no such object errors
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return
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@ -151,7 +156,8 @@ class Ldb(_Ldb):
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try:
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for msg in res:
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self.delete(msg.dn, ["relax:0"])
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except ldb.LdbError, (errno, _):
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except ldb.LdbError as error:
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(errno, estr) = error.args
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if errno != ldb.ERR_NO_SUCH_OBJECT:
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# Ignore no such object errors
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raise
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@ -175,7 +181,8 @@ class Ldb(_Ldb):
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[], controls=["show_deleted:0", "show_recycled:0"]):
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try:
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self.delete(msg.dn, ["relax:0"])
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except ldb.LdbError, (errno, _):
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except ldb.LdbError as error:
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(errno, estr) = error.args
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if errno != ldb.ERR_NO_SUCH_OBJECT:
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# Ignore no such object errors
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raise
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@ -190,7 +197,8 @@ class Ldb(_Ldb):
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"@OPTIONS", "@PARTITION", "@KLUDGEACL"]:
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try:
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self.delete(attr, ["relax:0"])
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except ldb.LdbError, (errno, _):
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except ldb.LdbError as error:
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(errno, estr) = error.args
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if errno != ldb.ERR_NO_SUCH_OBJECT:
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# Ignore missing dn errors
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raise
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@ -203,7 +211,8 @@ class Ldb(_Ldb):
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for attr in ["@INDEXLIST", "@ATTRIBUTES"]:
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try:
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self.delete(attr, ["relax:0"])
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except ldb.LdbError, (errno, _):
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except ldb.LdbError as error:
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(errno, estr) = error.args
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if errno != ldb.ERR_NO_SUCH_OBJECT:
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# Ignore missing dn errors
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raise
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@ -386,7 +395,6 @@ def arcfour_encrypt(key, data):
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raise Exception("arcfour_encrypt() requires " +
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"python*-crypto or python*-m2crypto or m2crypto")
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import _glue
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version = _glue.version
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interface_ips = _glue.interface_ips
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set_debug_level = _glue.set_debug_level
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22
python/samba/compat.py
Normal file
22
python/samba/compat.py
Normal file
@ -0,0 +1,22 @@
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# module which helps with porting to Python 3
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#
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# Copyright (C) Lumir Balhar <lbalhar@redhat.com> 2017
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""module which helps with porting to Python 3"""
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import sys
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PY3 = sys.version_info[0] == 3
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@ -21,22 +21,25 @@
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import os
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import ldb
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import samba
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import samba.auth
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from samba import param
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from samba.samdb import SamDB
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from samba import credentials
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import samba.ndr
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import samba.dcerpc.dcerpc
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import samba.dcerpc.base
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import samba.dcerpc.epmapper
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from samba.credentials import Credentials
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from samba import gensec
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import socket
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import struct
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import subprocess
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import sys
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import tempfile
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import unittest
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from samba.compat import PY3
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if not PY3:
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# Py2 only
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import samba.auth
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from samba.samdb import SamDB
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import samba.ndr
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import samba.dcerpc.dcerpc
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import samba.dcerpc.base
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import samba.dcerpc.epmapper
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from samba import gensec
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try:
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from unittest import SkipTest
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@ -136,7 +139,7 @@ class TestCase(unittest.TestCase):
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try:
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try:
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self.setUp()
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except SkipTest, e:
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except SkipTest as e:
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self._addSkip(result, str(e))
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return
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except KeyboardInterrupt:
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@ -149,7 +152,7 @@ class TestCase(unittest.TestCase):
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try:
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testMethod()
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ok = True
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except SkipTest, e:
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except SkipTest as e:
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self._addSkip(result, str(e))
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return
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except self.failureException:
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@ -161,7 +164,7 @@ class TestCase(unittest.TestCase):
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try:
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self.tearDown()
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except SkipTest, e:
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except SkipTest as e:
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self._addSkip(result, str(e))
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except KeyboardInterrupt:
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raise
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@ -380,5 +383,6 @@ def connect_samdb_env(env_url, env_username, env_password, lp=None):
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def delete_force(samdb, dn):
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try:
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samdb.delete(dn)
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except ldb.LdbError, (num, errstr):
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except ldb.LdbError as error:
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(num, errstr) = error.args
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assert num == ldb.ERR_NO_SUCH_OBJECT, "ldb.delete() failed: %s" % errstr
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