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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>
190 lines
4.6 KiB
Python
190 lines
4.6 KiB
Python
#!/usr/bin/env python
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#
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# Create DisplaySpecifiers LDIF (as a string) from the documents provided by
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# Microsoft under the WSPP.
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#
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# Copyright (C) Andrew Kroeger <andrew@id10ts.net> 2009
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#
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# Based on ms_schema.py
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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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import re
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def __read_folded_line(f, buffer):
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"""Read a line from an LDIF file, unfolding it"""
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line = buffer
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while True:
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l = f.readline()
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if l[:1] == " ":
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# continued line
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# cannot fold an empty line
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assert(line != "" and line != "\n")
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# preserves '\n '
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line = line + l
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else:
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# non-continued line
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if line == "":
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line = l
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if l == "":
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# eof, definitely won't be folded
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break
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else:
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# marks end of a folded line
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# line contains the now unfolded line
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# buffer contains the start of the next possibly folded line
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buffer = l
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break
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return (line, buffer)
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# Only compile regexp once.
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# Will not match options after the attribute type.
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attr_type_re = re.compile("^([A-Za-z][A-Za-z0-9-]*):")
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def __read_raw_entries(f):
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"""Read an LDIF entry, only unfolding lines"""
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buffer = ""
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while True:
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entry = []
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while True:
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(l, buffer) = __read_folded_line(f, buffer)
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if l[:1] == "#":
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continue
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if l == "\n" or l == "":
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break
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m = attr_type_re.match(l)
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if m:
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if l[-1:] == "\n":
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l = l[:-1]
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entry.append(l)
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else:
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print >>sys.stderr, "Invalid line: %s" % l,
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sys.exit(1)
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if len(entry):
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yield entry
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if l == "":
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break
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def fix_dn(dn):
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"""Fix a string DN to use ${CONFIGDN}"""
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if dn.find("<Configuration NC Distinguished Name>") != -1:
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dn = dn.replace("\n ", "")
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return dn.replace("<Configuration NC Distinguished Name>", "${CONFIGDN}")
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else:
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return dn
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def __write_ldif_one(entry):
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"""Write out entry as LDIF"""
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out = []
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for l in entry:
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if l[2] == 0:
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out.append("%s: %s" % (l[0], l[1]))
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else:
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# This is a base64-encoded value
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out.append("%s:: %s" % (l[0], l[1]))
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return "\n".join(out)
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def __transform_entry(entry):
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"""Perform required transformations to the Microsoft-provided LDIF"""
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temp_entry = []
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for l in entry:
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t = []
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if l.find("::") != -1:
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# This is a base64-encoded value
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t = l.split(":: ", 1)
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t.append(1)
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else:
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t = l.split(": ", 1)
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t.append(0)
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key = t[0].lower()
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if key == "changetype":
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continue
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if key == "distinguishedname":
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continue
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if key == "instancetype":
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continue
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if key == "name":
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continue
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if key == "cn":
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continue
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if key == "objectcategory":
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continue
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if key == "showinadvancedviewonly":
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value = t[1].upper().lstrip().rstrip()
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if value == "TRUE":
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# Remove showInAdvancedViewOnly attribute if it is set to the
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# default value of TRUE
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continue
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t[1] = fix_dn(t[1])
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temp_entry.append(t)
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entry = temp_entry
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return entry
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def read_ms_ldif(filename):
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"""Read and transform Microsoft-provided LDIF file."""
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out = []
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f = open(filename, "rU")
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for entry in __read_raw_entries(f):
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out.append(__write_ldif_one(__transform_entry(entry)))
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return "\n\n".join(out) + "\n\n"
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if __name__ == '__main__':
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import sys
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try:
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display_specifiers_file = sys.argv[1]
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except IndexError:
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print >>sys.stderr, "Usage: %s display-specifiers-ldif-file.txt" % (sys.argv[0])
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sys.exit(1)
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print read_ms_ldif(display_specifiers_file)
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