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mirror of https://github.com/samba-team/samba.git synced 2024-12-24 21:34:56 +03:00
samba-mirror/source4/scripting/python/samba/ms_display_specifiers.py
Andrew Tridgell 4cb423f527 s4-python: python is not always in /usr/bin
Using "#!/usr/bin/env python" is more portable. It still isn't ideal
though, as we should really use the python path found at configure
time. We do that in many places already, but some don't.

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
2010-06-24 18:46:57 +10:00

190 lines
4.6 KiB
Python

#!/usr/bin/env python
#
# Create DisplaySpecifiers LDIF (as a string) from the documents provided by
# Microsoft under the WSPP.
#
# Copyright (C) Andrew Kroeger <andrew@id10ts.net> 2009
#
# Based on ms_schema.py
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import re
def __read_folded_line(f, buffer):
"""Read a line from an LDIF file, unfolding it"""
line = buffer
while True:
l = f.readline()
if l[:1] == " ":
# continued line
# cannot fold an empty line
assert(line != "" and line != "\n")
# preserves '\n '
line = line + l
else:
# non-continued line
if line == "":
line = l
if l == "":
# eof, definitely won't be folded
break
else:
# marks end of a folded line
# line contains the now unfolded line
# buffer contains the start of the next possibly folded line
buffer = l
break
return (line, buffer)
# Only compile regexp once.
# Will not match options after the attribute type.
attr_type_re = re.compile("^([A-Za-z][A-Za-z0-9-]*):")
def __read_raw_entries(f):
"""Read an LDIF entry, only unfolding lines"""
buffer = ""
while True:
entry = []
while True:
(l, buffer) = __read_folded_line(f, buffer)
if l[:1] == "#":
continue
if l == "\n" or l == "":
break
m = attr_type_re.match(l)
if m:
if l[-1:] == "\n":
l = l[:-1]
entry.append(l)
else:
print >>sys.stderr, "Invalid line: %s" % l,
sys.exit(1)
if len(entry):
yield entry
if l == "":
break
def fix_dn(dn):
"""Fix a string DN to use ${CONFIGDN}"""
if dn.find("<Configuration NC Distinguished Name>") != -1:
dn = dn.replace("\n ", "")
return dn.replace("<Configuration NC Distinguished Name>", "${CONFIGDN}")
else:
return dn
def __write_ldif_one(entry):
"""Write out entry as LDIF"""
out = []
for l in entry:
if l[2] == 0:
out.append("%s: %s" % (l[0], l[1]))
else:
# This is a base64-encoded value
out.append("%s:: %s" % (l[0], l[1]))
return "\n".join(out)
def __transform_entry(entry):
"""Perform required transformations to the Microsoft-provided LDIF"""
temp_entry = []
for l in entry:
t = []
if l.find("::") != -1:
# This is a base64-encoded value
t = l.split(":: ", 1)
t.append(1)
else:
t = l.split(": ", 1)
t.append(0)
key = t[0].lower()
if key == "changetype":
continue
if key == "distinguishedname":
continue
if key == "instancetype":
continue
if key == "name":
continue
if key == "cn":
continue
if key == "objectcategory":
continue
if key == "showinadvancedviewonly":
value = t[1].upper().lstrip().rstrip()
if value == "TRUE":
# Remove showInAdvancedViewOnly attribute if it is set to the
# default value of TRUE
continue
t[1] = fix_dn(t[1])
temp_entry.append(t)
entry = temp_entry
return entry
def read_ms_ldif(filename):
"""Read and transform Microsoft-provided LDIF file."""
out = []
f = open(filename, "rU")
for entry in __read_raw_entries(f):
out.append(__write_ldif_one(__transform_entry(entry)))
return "\n\n".join(out) + "\n\n"
if __name__ == '__main__':
import sys
try:
display_specifiers_file = sys.argv[1]
except IndexError:
print >>sys.stderr, "Usage: %s display-specifiers-ldif-file.txt" % (sys.argv[0])
sys.exit(1)
print read_ms_ldif(display_specifiers_file)