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authorAndrew Kroeger <andrew@id10ts.net>2009-09-02 03:20:50 -0500
committerAndrew Bartlett <abartlet@samba.org>2009-09-07 11:18:18 +1000
commit1a657b0413190fd3888ade97262903fef4e247cb (patch)
tree8e2ce8ca1f31884251605d314c0ea4405dd4d9a1 /source4
parent65130fa021bd36a1a885876cca857cb90b92ad39 (diff)
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s4:setup: Added script to parse Microsoft DisplaySpecifiers document.
Created this script based on the existing ms_schema.py script. - Removed some unnecessary transformations that are only necessary for schema processing. - Added capability to parse and properly output base64-encoded values. - Removed unnecessary attributes based on what attributes were present (and also what were explicitly removed) from display_specifiers.ldif.
Diffstat (limited to 'source4')
-rw-r--r--source4/scripting/python/samba/ms_display_specifiers.py189
1 files changed, 189 insertions, 0 deletions
diff --git a/source4/scripting/python/samba/ms_display_specifiers.py b/source4/scripting/python/samba/ms_display_specifiers.py
new file mode 100644
index 0000000000..2a54e4ae0e
--- /dev/null
+++ b/source4/scripting/python/samba/ms_display_specifiers.py
@@ -0,0 +1,189 @@
+#!/usr/bin/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)
+