3 # Generates passwd, shadow and group files from the ldap directory.
5 # Copyright (c) 2000-2001 Jason Gunthorpe <jgg@debian.org>
6 # Copyright (c) 2003-2004 James Troup <troup@debian.org>
7 # Copyright (c) 2004-2005,7 Joey Schulze <joey@infodrom.org>
8 # Copyright (c) 2001-2007 Ryan Murray <rmurray@debian.org>
10 # This program is free software; you can redistribute it and/or modify
11 # it under the terms of the GNU General Public License as published by
12 # the Free Software Foundation; either version 2 of the License, or
13 # (at your option) any later version.
15 # This program is distributed in the hope that it will be useful,
16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 # GNU General Public License for more details.
20 # You should have received a copy of the GNU General Public License
21 # along with this program; if not, write to the Free Software
22 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 import string, re, time, ldap, getopt, sys, os, pwd, posix, socket, base64, sha
25 from userdir_ldap import *;
35 EmailCheck = re.compile("^([^ <>@]+@[^ ,<>@]+)?$");
36 BSMTPCheck = re.compile(".*mx 0 (gluck)\.debian\.org\..*",re.DOTALL);
37 DNSZone = ".debian.net"
40 return string.translate(Str,string.maketrans("\n\r\t","$$$"));
42 def DoLink(From,To,File):
43 try: posix.remove(To+File);
45 posix.link(From+File,To+File);
47 # See if this user is in the group list
48 def IsInGroup(DnRecord):
52 # See if the primary group is in the list
53 if Allowed.has_key(GetAttr(DnRecord,"gidNumber")) != 0:
56 # Check the host based ACL
57 if DnRecord[1].has_key("allowedHost") != 0:
58 for I in DnRecord[1]["allowedHost"]:
62 # See if there are supplementary groups
63 if DnRecord[1].has_key("supplementaryGid") == 0:
66 # Check the supplementary groups
67 for I in DnRecord[1]["supplementaryGid"]:
68 if Allowed.has_key(I):
77 try: os.remove(File + ".tmp");
79 try: os.remove(File + ".tdb.tmp");
85 os.rename(File + ".tmp",File);
88 os.rename(File + ".tdb.tmp",File+".tdb");
90 # Generate the password list
91 def GenPasswd(l,File,HomePrefix):
94 F = open(File + ".tdb.tmp","w");
98 if PasswdAttrs == None:
102 for x in PasswdAttrs:
103 if x[1].has_key("uidNumber") == 0 or IsInGroup(x) == 0:
106 # Do not let people try to buffer overflow some busted passwd parser.
107 if len(GetAttr(x,"gecos")) > 100 or len(GetAttr(x,"loginShell")) > 50:
110 Line = "%s:x:%s:%s:%s:%s%s:%s" % (GetAttr(x,"uid"),\
111 GetAttr(x,"uidNumber"),GetAttr(x,"gidNumber"),\
112 GetAttr(x,"gecos"),HomePrefix,GetAttr(x,"uid"),\
113 GetAttr(x,"loginShell"));
115 Line = Sanitize(Line) + "\n";
116 F.write("0%u %s" % (I,Line));
117 F.write(".%s %s" % (GetAttr(x,"uid"),Line));
118 F.write("=%s %s" % (GetAttr(x,"uidNumber"),Line));
121 # Oops, something unspeakable happened.
127 # Generate the shadow list
128 def GenShadow(l,File):
131 OldMask = os.umask(0077);
132 F = open(File + ".tdb.tmp","w",0600);
135 # Fetch all the users
137 if PasswdAttrs == None:
141 for x in PasswdAttrs:
142 if x[1].has_key("uidNumber") == 0 or IsInGroup(x) == 0:
145 Pass = GetAttr(x,"userPassword");
146 if Pass[0:7] != "{crypt}" or len(Pass) > 50:
150 Line = "%s:%s:%s:%s:%s:%s:%s:%s:" % (GetAttr(x,"uid"),\
151 Pass,GetAttr(x,"shadowLastChange"),\
152 GetAttr(x,"shadowMin"),GetAttr(x,"shadowMax"),\
153 GetAttr(x,"shadowWarning"),GetAttr(x,"shadowinactive"),\
154 GetAttr(x,"shadowexpire"));
155 Line = Sanitize(Line) + "\n";
156 F.write("0%u %s" % (I,Line));
157 F.write(".%s %s" % (GetAttr(x,"uid"),Line));
160 # Oops, something unspeakable happened.
166 # Generate the shadow list
167 def GenSSHShadow(l,File):
170 OldMask = os.umask(0077);
171 F = open(File + ".tmp","w",0600);
174 # Fetch all the users
176 if PasswdAttrs == None:
179 for x in PasswdAttrs:
180 # If the account is locked, do not write it.
181 # This is a partial stop-gap. The ssh also needs to change this
182 # to ignore ~/.ssh/authorized* files.
183 if (string.find(GetAttr(x,"userPassword"),"*LK*") != -1):
186 if x[1].has_key("uidNumber") == 0 or \
187 x[1].has_key("sshRSAAuthKey") == 0:
189 for I in x[1]["sshRSAAuthKey"]:
190 User = GetAttr(x,"uid");
191 Line = "%s: %s" %(User,I);
192 Line = Sanitize(Line) + "\n";
194 # Oops, something unspeakable happened.
200 # Generate the group list
201 def GenGroup(l,File):
204 F = open(File + ".tdb.tmp","w");
206 # Generate the GroupMap
208 for x in GroupIDMap.keys():
211 # Fetch all the users
213 if PasswdAttrs == None:
216 # Sort them into a list of groups having a set of users
217 for x in PasswdAttrs:
218 if x[1].has_key("uidNumber") == 0 or IsInGroup(x) == 0:
220 if x[1].has_key("supplementaryGid") == 0:
223 for I in x[1]["supplementaryGid"]:
224 if GroupMap.has_key(I):
225 GroupMap[I].append(GetAttr(x,"uid"));
227 print "Group does not exist ",I,"but",GetAttr(x,"uid"),"is in it";
229 # Output the group file.
231 for x in GroupMap.keys():
232 if GroupIDMap.has_key(x) == 0:
234 Line = "%s:x:%u:" % (x,GroupIDMap[x]);
236 for I in GroupMap[x]:
237 Line = Line + ("%s%s" % (Comma,I));
239 Line = Sanitize(Line) + "\n";
240 F.write("0%u %s" % (J,Line));
241 F.write(".%s %s" % (x,Line));
242 F.write("=%u %s" % (GroupIDMap[x],Line));
245 # Oops, something unspeakable happened.
251 # Generate the email forwarding list
252 def GenForward(l,File):
255 OldMask = os.umask(0022);
256 F = open(File + ".tmp","w",0644);
259 # Fetch all the users
261 if PasswdAttrs == None:
264 # Write out the email address for each user
265 for x in PasswdAttrs:
266 if x[1].has_key("emailForward") == 0 or IsInGroup(x) == 0:
269 # Do not allow people to try to buffer overflow busted parsers
270 if len(GetAttr(x,"emailForward")) > 200:
273 # Check the forwarding address
274 if EmailCheck.match(GetAttr(x,"emailForward")) == None:
276 Line = "%s: %s" % (GetAttr(x,"uid"),GetAttr(x,"emailForward"));
277 Line = Sanitize(Line) + "\n";
280 # Oops, something unspeakable happened.
286 def GenAllForward(l,File):
289 OldMask = os.umask(0022);
290 Fdb = os.popen("cdbmake %s %s.tmp"%(File,File),"w");
293 # Fetch all the users
295 if PasswdAttrs == None:
298 # Write out the email address for each user
299 for x in PasswdAttrs:
300 if x[1].has_key("emailForward") == 0:
303 # Do not allow people to try to buffer overflow busted parsers
304 Forward = GetAttr(x,"emailForward");
305 if len(Forward) > 200:
308 # Check the forwarding address
309 if EmailCheck.match(Forward) == None:
312 User = GetAttr(x,"uid");
313 Fdb.write("+%d,%d:%s->%s\n"%(len(User),len(Forward),User,Forward));
315 # Oops, something unspeakable happened.
319 if Fdb.close() != None:
320 raise "cdbmake gave an error";
322 # Generate the anon XEarth marker file
323 def GenMarkers(l,File):
326 F = open(File + ".tmp","w");
328 # Fetch all the users
330 if PasswdAttrs == None:
333 # Write out the position for each user
334 for x in PasswdAttrs:
335 if x[1].has_key("latitude") == 0 or x[1].has_key("longitude") == 0:
338 Line = "%8s %8s \"\""%(DecDegree(GetAttr(x,"latitude"),1),DecDegree(GetAttr(x,"longitude"),1));
339 Line = Sanitize(Line) + "\n";
344 # Oops, something unspeakable happened.
350 # Generate the debian-private subscription list
351 def GenPrivate(l,File):
354 F = open(File + ".tmp","w");
356 # Fetch all the users
358 if PasswdAttrs == None:
361 # Write out the position for each user
362 for x in PasswdAttrs:
363 if x[1].has_key("privateSub") == 0:
366 # If the account is locked, do not write it
367 if (string.find(GetAttr(x,"userPassword"),"*LK*") != -1) \
368 or (string.find(GetAttr(x,"userPassword"),"*PK*") != -1):
371 # If the account has no PGP key, do not write it
372 if x[1].has_key("keyFingerPrint") == 0:
375 # Must be in the Debian group (yuk, hard coded for now)
376 if GetAttr(x,"gidNumber") != "800":
380 Line = "%s"%(GetAttr(x,"privateSub"));
381 Line = Sanitize(Line) + "\n";
386 # Oops, something unspeakable happened.
392 # Generate the list of local addresses that refuse all mail
393 def GenMailDisable(l,File):
396 F = open(File + ".tmp","w");
398 # Fetch all the users
400 if PasswdAttrs == None:
403 for x in PasswdAttrs:
406 # If the account is locked, disable incoming mail
407 if (string.find(GetAttr(x,"userPassword"),"*LK*") != -1):
408 Reason = "user account locked"
410 if x[1].has_key("mailDisableMessage"):
411 Reason = GetAttr(x,"mailDisableMessage")
415 # Must be in the Debian group (yuk, hard coded for now)
416 if GetAttr(x,"gidNumber") != "800":
420 Line = "%s: %s"%(GetAttr(x,"uid"),Reason);
421 Line = Sanitize(Line) + "\n";
426 # Oops, something unspeakable happened.
432 # Generate a list of uids that should have boolean affects applied
433 def GenMailBool(l,File,Key):
436 F = open(File + ".tmp","w");
438 # Fetch all the users
440 if PasswdAttrs == None:
443 for x in PasswdAttrs:
446 if x[1].has_key(Key) == 0:
449 # Must be in the Debian group (yuk, hard coded for now)
450 if GetAttr(x,"gidNumber") != "800":
453 if GetAttr(x,Key) != "TRUE":
457 Line = "%s"%(GetAttr(x,"uid"));
458 Line = Sanitize(Line) + "\n";
463 # Oops, something unspeakable happened.
469 # Generate a list of hosts for RBL or whitelist purposes.
470 def GenMailList(l,File,Key):
473 F = open(File + ".tmp","w");
475 # Fetch all the users
477 if PasswdAttrs == None:
480 for x in PasswdAttrs:
483 if x[1].has_key(Key) == 0:
486 # Must be in the Debian group (yuk, hard coded for now)
487 if GetAttr(x,"gidNumber") != "800":
494 if Key == "mailWhitelist":
495 if re.match('^[-\w.]+(/[\d]+)?$',z) == None:
498 if re.match('^[-\w.]+$',z) == None:
502 Line = GetAttr(x,"uid")
506 if Key == "mailRHSBL":
507 Line += "/$sender_address_domain"
510 Line = Sanitize(Line) + "\n";
515 # Oops, something unspeakable happened.
521 # Generate the DNS Zone file
522 def GenDNS(l,File,HomePrefix):
525 F = open(File + ".tmp","w");
527 # Fetch all the users
529 if PasswdAttrs == None:
532 # Write out the zone file entry for each user
533 for x in PasswdAttrs:
534 if x[1].has_key("dnsZoneEntry") == 0:
537 # If the account has no PGP key, do not write it
538 if x[1].has_key("keyFingerPrint") == 0:
541 F.write("; %s\n"%(EmailAddress(x)));
542 for z in x[1]["dnsZoneEntry"]:
543 Split = string.split(string.lower(z));
544 if string.lower(Split[1]) == 'in':
545 for y in range(0,len(Split)):
548 Line = string.join(Split," ") + "\n";
551 Host = Split[0] + DNSZone;
552 if BSMTPCheck.match(Line) != None:
553 F.write("; Has BSMTP\n");
555 # Write some identification information
556 if string.lower(Split[2]) == "a":
557 Line = "%s IN TXT \"%s\"\n"%(Split[0],EmailAddress(x));
558 for y in x[1]["keyFingerPrint"]:
559 Line = Line + "%s IN TXT \"PGP %s\"\n"%(Split[0],FormatPGPKey(y));
562 Line = "; Err %s"%(str(Split));
567 F.write("; Errors\n");
570 # Oops, something unspeakable happened.
576 # Generate the DNS SSHFP records
577 def GenSSHFP(l,File,HomePrefix):
580 F = open(File + ".tmp","w")
582 # Fetch all the hosts
584 if HostAttrs == None:
588 if x[1].has_key("hostname") == 0 or \
589 x[1].has_key("sshRSAHostKey") == 0:
591 Host = GetAttr(x,"hostname");
593 for I in x[1]["sshRSAHostKey"]:
594 Split = string.split(I)
595 if Split[0] == 'ssh-rsa':
597 if Split[0] == 'ssh-dss':
599 if Algorithm == None:
601 Fingerprint = sha.new(base64.decodestring(Split[1])).hexdigest()
602 Line = "%s. IN SSHFP %u 1 %s" % (Host,Algorithm,Fingerprint)
603 Line = Sanitize(Line) + "\n"
605 # Oops, something unspeakable happened.
611 # Generate the BSMTP file
612 def GenBSMTP(l,File,HomePrefix):
615 F = open(File + ".tmp","w");
617 # Fetch all the users
619 if PasswdAttrs == None:
622 # Write out the zone file entry for each user
623 for x in PasswdAttrs:
624 if x[1].has_key("dnsZoneEntry") == 0:
627 # If the account has no PGP key, do not write it
628 if x[1].has_key("keyFingerPrint") == 0:
631 for z in x[1]["dnsZoneEntry"]:
632 Split = string.split(string.lower(z));
633 if string.lower(Split[1]) == 'in':
634 for y in range(0,len(Split)):
637 Line = string.join(Split," ") + "\n";
639 Host = Split[0] + DNSZone;
640 if BSMTPCheck.match(Line) != None:
641 F.write("%s: user=%s group=Debian file=%s%s/bsmtp/%s\n"%(Host,
642 GetAttr(x,"uid"),HomePrefix,GetAttr(x,"uid"),Host));
645 F.write("; Errors\n");
648 # Oops, something unspeakable happened.
654 # Generate the ssh known hosts file
655 def GenSSHKnown(l,File):
658 OldMask = os.umask(0022);
659 F = open(File + ".tmp","w",0644);
663 if HostAttrs == None:
667 if x[1].has_key("hostname") == 0 or \
668 x[1].has_key("sshRSAHostKey") == 0:
670 Host = GetAttr(x,"hostname");
671 SHost = string.find(Host,".");
672 for I in x[1]["sshRSAHostKey"]:
674 Line = "%s,%s %s" %(Host,socket.gethostbyname(Host),I);
676 Line = "%s,%s,%s %s" %(Host,Host[0:SHost],socket.gethostbyname(Host),I);
677 Line = Sanitize(Line) + "\n";
679 # Oops, something unspeakable happened.
685 # Generate the debianhosts file (list of all IP addresses)
686 def GenHosts(l,File):
689 OldMask = os.umask(0022);
690 F = open(File + ".tmp","w",0644);
693 # Fetch all the hosts
694 HostNames = l.search_s(HostBaseDn,ldap.SCOPE_ONELEVEL,"hostname=*",\
697 if HostNames == None:
701 if x[1].has_key("hostname") == 0:
703 Host = GetAttr(x,"hostname");
705 Addr = socket.gethostbyname(Host);
706 F.write(Addr + "\n");
709 # Oops, something unspeakable happened.
715 # Connect to the ldap server
716 l = ldap.open(LDAPServer);
717 F = open(PassDir+"/pass-"+pwd.getpwuid(os.getuid())[0],"r");
718 Pass = string.split(string.strip(F.readline())," ");
720 l.simple_bind_s("uid="+Pass[0]+","+BaseDn,Pass[1]);
722 # Fetch all the groups
724 Attrs = l.search_s(BaseDn,ldap.SCOPE_ONELEVEL,"gid=*",\
725 ["gid","gidNumber"]);
727 # Generate the GroupMap and GroupIDMap
729 if x[1].has_key("gidNumber") == 0:
731 GroupIDMap[x[1]["gid"][0]] = int(x[1]["gidNumber"][0]);
733 # Fetch all the users
734 PasswdAttrs = l.search_s(BaseDn,ldap.SCOPE_ONELEVEL,"uid=*",\
735 ["uid","uidNumber","gidNumber","supplementaryGid",\
736 "gecos","loginShell","userPassword","shadowLastChange",\
737 "shadowMin","shadowMax","shadowWarning","shadowinactive",
738 "shadowexpire","emailForward","latitude","longitude",\
739 "allowedHost","sshRSAAuthKey","dnsZoneEntry","cn","sn",\
740 "keyFingerPrint","privateSub","mailDisableMessage",\
741 "mailGreylisting","mailCallout","mailRBL","mailRHSBL",\
743 # Fetch all the hosts
744 HostAttrs = l.search_s(HostBaseDn,ldap.SCOPE_ONELEVEL,"sshRSAHostKey=*",\
745 ["hostname","sshRSAHostKey"]);
747 # Open the control file
748 if len(sys.argv) == 1:
749 F = open(GenerateConf,"r");
751 F = open(sys.argv[1],"r")
753 # Generate global things
754 GlobalDir = GenerateDir+"/";
755 GenSSHShadow(l,GlobalDir+"ssh-rsa-shadow");
756 GenAllForward(l,GlobalDir+"mail-forward.cdb");
757 GenMarkers(l,GlobalDir+"markers");
758 GenPrivate(l,GlobalDir+"debian-private");
759 GenSSHKnown(l,GlobalDir+"ssh_known_hosts");
760 GenHosts(l,GlobalDir+"debianhosts");
761 GenMailDisable(l,GlobalDir+"mail-disable");
762 GenMailBool(l,GlobalDir+"mail-greylist","mailGreylisting");
763 GenMailBool(l,GlobalDir+"mail-callout","mailCallout");
764 GenMailList(l,GlobalDir+"mail-rbl","mailRBL");
765 GenMailList(l,GlobalDir+"mail-rhsbl","mailRHSBL");
766 GenMailList(l,GlobalDir+"mail-whitelist","mailWhitelist");
769 GenForward(l,GlobalDir+"forward-alias");
775 Line = string.strip(Line);
781 Split = string.split(Line," ");
782 OutDir = GenerateDir + '/' + Split[0] + '/';
783 try: os.mkdir(OutDir);
786 # Get the group list and convert any named groups to numerics
794 if GroupIDMap.has_key(I):
795 GroupList[str(GroupIDMap[I])] = None;
800 CurrentHost = Split[0];
802 DoLink(GlobalDir,OutDir,"ssh-rsa-shadow");
803 DoLink(GlobalDir,OutDir,"debianhosts");
804 DoLink(GlobalDir,OutDir,"ssh_known_hosts");
807 GenPasswd(l,OutDir+"passwd",Split[1]);
809 GenGroup(l,OutDir+"group");
810 if ExtraList.has_key("[UNTRUSTED]"):
812 GenShadow(l,OutDir+"shadow");
814 # Link in global things
815 DoLink(GlobalDir,OutDir,"markers");
816 DoLink(GlobalDir,OutDir,"mail-forward.cdb");
817 DoLink(GlobalDir,OutDir,"mail-disable");
818 DoLink(GlobalDir,OutDir,"mail-greylist");
819 DoLink(GlobalDir,OutDir,"mail-callout");
820 DoLink(GlobalDir,OutDir,"mail-rbl");
821 DoLink(GlobalDir,OutDir,"mail-rhsbl");
822 DoLink(GlobalDir,OutDir,"mail-whitelist");
825 DoLink(GlobalDir,OutDir,"forward-alias");
827 if ExtraList.has_key("[DNS]"):
828 GenDNS(l,OutDir+"dns-zone",Split[1]);
829 GenSSHFP(l,OutDir+"dns-sshfp",Split[1])
831 if ExtraList.has_key("[BSMTP]"):
832 GenBSMTP(l,OutDir+"bsmtp",Split[1])
834 if ExtraList.has_key("[PRIVATE]"):
835 DoLink(GlobalDir,OutDir,"debian-private")