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) \
184 or (string.find(GetAttr(x,"userPassword"),"*PK*") != -1):
187 if x[1].has_key("uidNumber") == 0 or \
188 x[1].has_key("sshRSAAuthKey") == 0:
190 for I in x[1]["sshRSAAuthKey"]:
191 User = GetAttr(x,"uid");
192 Line = "%s: %s" %(User,I);
193 Line = Sanitize(Line) + "\n";
195 # Oops, something unspeakable happened.
201 # Generate the group list
202 def GenGroup(l,File):
205 F = open(File + ".tdb.tmp","w");
207 # Generate the GroupMap
209 for x in GroupIDMap.keys():
212 # Fetch all the users
214 if PasswdAttrs == None:
217 # Sort them into a list of groups having a set of users
218 for x in PasswdAttrs:
219 if x[1].has_key("uidNumber") == 0 or IsInGroup(x) == 0:
221 if x[1].has_key("supplementaryGid") == 0:
224 for I in x[1]["supplementaryGid"]:
225 if GroupMap.has_key(I):
226 GroupMap[I].append(GetAttr(x,"uid"));
228 print "Group does not exist ",I,"but",GetAttr(x,"uid"),"is in it";
230 # Output the group file.
232 for x in GroupMap.keys():
233 if GroupIDMap.has_key(x) == 0:
235 Line = "%s:x:%u:" % (x,GroupIDMap[x]);
237 for I in GroupMap[x]:
238 Line = Line + ("%s%s" % (Comma,I));
240 Line = Sanitize(Line) + "\n";
241 F.write("0%u %s" % (J,Line));
242 F.write(".%s %s" % (x,Line));
243 F.write("=%u %s" % (GroupIDMap[x],Line));
246 # Oops, something unspeakable happened.
252 # Generate the email forwarding list
253 def GenForward(l,File):
256 OldMask = os.umask(0022);
257 F = open(File + ".tmp","w",0644);
260 # Fetch all the users
262 if PasswdAttrs == None:
265 # Write out the email address for each user
266 for x in PasswdAttrs:
267 if x[1].has_key("emailForward") == 0 or IsInGroup(x) == 0:
270 # Do not allow people to try to buffer overflow busted parsers
271 if len(GetAttr(x,"emailForward")) > 200:
274 # Check the forwarding address
275 if EmailCheck.match(GetAttr(x,"emailForward")) == None:
277 Line = "%s: %s" % (GetAttr(x,"uid"),GetAttr(x,"emailForward"));
278 Line = Sanitize(Line) + "\n";
281 # Oops, something unspeakable happened.
287 def GenAllForward(l,File):
290 OldMask = os.umask(0022);
291 Fdb = os.popen("cdbmake %s %s.tmp"%(File,File),"w");
294 # Fetch all the users
296 if PasswdAttrs == None:
299 # Write out the email address for each user
300 for x in PasswdAttrs:
301 if x[1].has_key("emailForward") == 0:
304 # Do not allow people to try to buffer overflow busted parsers
305 Forward = GetAttr(x,"emailForward");
306 if len(Forward) > 200:
309 # Check the forwarding address
310 if EmailCheck.match(Forward) == None:
313 User = GetAttr(x,"uid");
314 Fdb.write("+%d,%d:%s->%s\n"%(len(User),len(Forward),User,Forward));
316 # Oops, something unspeakable happened.
320 if Fdb.close() != None:
321 raise "cdbmake gave an error";
323 # Generate the anon XEarth marker file
324 def GenMarkers(l,File):
327 F = open(File + ".tmp","w");
329 # Fetch all the users
331 if PasswdAttrs == None:
334 # Write out the position for each user
335 for x in PasswdAttrs:
336 if x[1].has_key("latitude") == 0 or x[1].has_key("longitude") == 0:
339 Line = "%8s %8s \"\""%(DecDegree(GetAttr(x,"latitude"),1),DecDegree(GetAttr(x,"longitude"),1));
340 Line = Sanitize(Line) + "\n";
345 # Oops, something unspeakable happened.
351 # Generate the debian-private subscription list
352 def GenPrivate(l,File):
355 F = open(File + ".tmp","w");
357 # Fetch all the users
359 if PasswdAttrs == None:
362 # Write out the position for each user
363 for x in PasswdAttrs:
364 if x[1].has_key("privateSub") == 0:
367 # If the account is locked, do not write it
368 if (string.find(GetAttr(x,"userPassword"),"*LK*") != -1) \
369 or (string.find(GetAttr(x,"userPassword"),"*PK*") != -1):
372 # If the account has no PGP key, do not write it
373 if x[1].has_key("keyFingerPrint") == 0:
376 # Must be in the Debian group (yuk, hard coded for now)
377 if GetAttr(x,"gidNumber") != "800":
381 Line = "%s"%(GetAttr(x,"privateSub"));
382 Line = Sanitize(Line) + "\n";
387 # Oops, something unspeakable happened.
393 # Generate the list of local addresses that refuse all mail
394 def GenMailDisable(l,File):
397 F = open(File + ".tmp","w");
399 # Fetch all the users
401 if PasswdAttrs == None:
404 for x in PasswdAttrs:
407 # If the account is locked, disable incoming mail
408 if (string.find(GetAttr(x,"userPassword"),"*LK*") != -1):
409 Reason = "user account locked"
411 if x[1].has_key("mailDisableMessage"):
412 Reason = GetAttr(x,"mailDisableMessage")
416 # Must be in the Debian group (yuk, hard coded for now)
417 if GetAttr(x,"gidNumber") != "800":
421 Line = "%s: %s"%(GetAttr(x,"uid"),Reason);
422 Line = Sanitize(Line) + "\n";
427 # Oops, something unspeakable happened.
433 # Generate a list of uids that should have boolean affects applied
434 def GenMailBool(l,File,Key):
437 F = open(File + ".tmp","w");
439 # Fetch all the users
441 if PasswdAttrs == None:
444 for x in PasswdAttrs:
447 if x[1].has_key(Key) == 0:
450 # Must be in the Debian group (yuk, hard coded for now)
451 if GetAttr(x,"gidNumber") != "800":
454 if GetAttr(x,Key) != "TRUE":
458 Line = "%s"%(GetAttr(x,"uid"));
459 Line = Sanitize(Line) + "\n";
464 # Oops, something unspeakable happened.
470 # Generate a list of hosts for RBL or whitelist purposes.
471 def GenMailList(l,File,Key):
474 F = open(File + ".tmp","w");
476 # Fetch all the users
478 if PasswdAttrs == None:
481 for x in PasswdAttrs:
484 if x[1].has_key(Key) == 0:
487 # Must be in the Debian group (yuk, hard coded for now)
488 if GetAttr(x,"gidNumber") != "800":
495 if Key == "mailWhitelist":
496 if re.match('^[-\w.]+(/[\d]+)?$',z) == None:
499 if re.match('^[-\w.]+$',z) == None:
503 Line = GetAttr(x,"uid")
507 if Key == "mailRHSBL":
508 Line += "/$sender_address_domain"
511 Line = Sanitize(Line) + "\n";
516 # Oops, something unspeakable happened.
522 # Generate the DNS Zone file
523 def GenDNS(l,File,HomePrefix):
526 F = open(File + ".tmp","w");
528 # Fetch all the users
530 if PasswdAttrs == None:
533 # Write out the zone file entry for each user
534 for x in PasswdAttrs:
535 if x[1].has_key("dnsZoneEntry") == 0:
538 # If the account has no PGP key, do not write it
539 if x[1].has_key("keyFingerPrint") == 0:
542 F.write("; %s\n"%(EmailAddress(x)));
543 for z in x[1]["dnsZoneEntry"]:
544 Split = string.split(string.lower(z));
545 if string.lower(Split[1]) == 'in':
546 for y in range(0,len(Split)):
549 Line = string.join(Split," ") + "\n";
552 Host = Split[0] + DNSZone;
553 if BSMTPCheck.match(Line) != None:
554 F.write("; Has BSMTP\n");
556 # Write some identification information
557 if string.lower(Split[2]) == "a":
558 Line = "%s IN TXT \"%s\"\n"%(Split[0],EmailAddress(x));
559 for y in x[1]["keyFingerPrint"]:
560 Line = Line + "%s IN TXT \"PGP %s\"\n"%(Split[0],FormatPGPKey(y));
563 Line = "; Err %s"%(str(Split));
568 F.write("; Errors\n");
571 # Oops, something unspeakable happened.
577 # Generate the DNS SSHFP records
578 def GenSSHFP(l,File,HomePrefix):
581 F = open(File + ".tmp","w")
583 # Fetch all the hosts
585 if HostAttrs == None:
589 if x[1].has_key("hostname") == 0 or \
590 x[1].has_key("sshRSAHostKey") == 0:
592 Host = GetAttr(x,"hostname");
594 for I in x[1]["sshRSAHostKey"]:
595 Split = string.split(I)
596 if Split[0] == 'ssh-rsa':
598 if Split[0] == 'ssh-dss':
600 if Algorithm == None:
602 Fingerprint = sha.new(base64.decodestring(Split[1])).hexdigest()
603 Line = "%s. IN SSHFP %u 1 %s" % (Host,Algorithm,Fingerprint)
604 Line = Sanitize(Line) + "\n"
606 # Oops, something unspeakable happened.
612 # Generate the BSMTP file
613 def GenBSMTP(l,File,HomePrefix):
616 F = open(File + ".tmp","w");
618 # Fetch all the users
620 if PasswdAttrs == None:
623 # Write out the zone file entry for each user
624 for x in PasswdAttrs:
625 if x[1].has_key("dnsZoneEntry") == 0:
628 # If the account has no PGP key, do not write it
629 if x[1].has_key("keyFingerPrint") == 0:
632 for z in x[1]["dnsZoneEntry"]:
633 Split = string.split(string.lower(z));
634 if string.lower(Split[1]) == 'in':
635 for y in range(0,len(Split)):
638 Line = string.join(Split," ") + "\n";
640 Host = Split[0] + DNSZone;
641 if BSMTPCheck.match(Line) != None:
642 F.write("%s: user=%s group=Debian file=%s%s/bsmtp/%s\n"%(Host,
643 GetAttr(x,"uid"),HomePrefix,GetAttr(x,"uid"),Host));
646 F.write("; Errors\n");
649 # Oops, something unspeakable happened.
655 # Generate the ssh known hosts file
656 def GenSSHKnown(l,File):
659 OldMask = os.umask(0022);
660 F = open(File + ".tmp","w",0644);
664 if HostAttrs == None:
668 if x[1].has_key("hostname") == 0 or \
669 x[1].has_key("sshRSAHostKey") == 0:
671 Host = GetAttr(x,"hostname");
672 SHost = string.find(Host,".");
673 for I in x[1]["sshRSAHostKey"]:
675 Line = "%s,%s %s" %(Host,socket.gethostbyname(Host),I);
677 Line = "%s,%s,%s %s" %(Host,Host[0:SHost],socket.gethostbyname(Host),I);
678 Line = Sanitize(Line) + "\n";
680 # Oops, something unspeakable happened.
686 # Generate the debianhosts file (list of all IP addresses)
687 def GenHosts(l,File):
690 OldMask = os.umask(0022);
691 F = open(File + ".tmp","w",0644);
694 # Fetch all the hosts
695 HostNames = l.search_s(HostBaseDn,ldap.SCOPE_ONELEVEL,"hostname=*",\
698 if HostNames == None:
702 if x[1].has_key("hostname") == 0:
704 Host = GetAttr(x,"hostname");
706 Addr = socket.gethostbyname(Host);
707 F.write(Addr + "\n");
710 # Oops, something unspeakable happened.
716 # Connect to the ldap server
717 l = ldap.open(LDAPServer);
718 F = open(PassDir+"/pass-"+pwd.getpwuid(os.getuid())[0],"r");
719 Pass = string.split(string.strip(F.readline())," ");
721 l.simple_bind_s("uid="+Pass[0]+","+BaseDn,Pass[1]);
723 # Fetch all the groups
725 Attrs = l.search_s(BaseDn,ldap.SCOPE_ONELEVEL,"gid=*",\
726 ["gid","gidNumber"]);
728 # Generate the GroupMap and GroupIDMap
730 if x[1].has_key("gidNumber") == 0:
732 GroupIDMap[x[1]["gid"][0]] = int(x[1]["gidNumber"][0]);
734 # Fetch all the users
735 PasswdAttrs = l.search_s(BaseDn,ldap.SCOPE_ONELEVEL,"uid=*",\
736 ["uid","uidNumber","gidNumber","supplementaryGid",\
737 "gecos","loginShell","userPassword","shadowLastChange",\
738 "shadowMin","shadowMax","shadowWarning","shadowinactive",
739 "shadowexpire","emailForward","latitude","longitude",\
740 "allowedHost","sshRSAAuthKey","dnsZoneEntry","cn","sn",\
741 "keyFingerPrint","privateSub","mailDisableMessage",\
742 "mailGreylisting","mailCallout","mailRBL","mailRHSBL",\
744 # Fetch all the hosts
745 HostAttrs = l.search_s(HostBaseDn,ldap.SCOPE_ONELEVEL,"sshRSAHostKey=*",\
746 ["hostname","sshRSAHostKey"]);
748 # Open the control file
749 if len(sys.argv) == 1:
750 F = open(GenerateConf,"r");
752 F = open(sys.argv[1],"r")
754 # Generate global things
755 GlobalDir = GenerateDir+"/";
756 GenSSHShadow(l,GlobalDir+"ssh-rsa-shadow");
757 GenAllForward(l,GlobalDir+"mail-forward.cdb");
758 GenMarkers(l,GlobalDir+"markers");
759 GenPrivate(l,GlobalDir+"debian-private");
760 GenSSHKnown(l,GlobalDir+"ssh_known_hosts");
761 GenHosts(l,GlobalDir+"debianhosts");
762 GenMailDisable(l,GlobalDir+"mail-disable");
763 GenMailBool(l,GlobalDir+"mail-greylist","mailGreylisting");
764 GenMailBool(l,GlobalDir+"mail-callout","mailCallout");
765 GenMailList(l,GlobalDir+"mail-rbl","mailRBL");
766 GenMailList(l,GlobalDir+"mail-rhsbl","mailRHSBL");
767 GenMailList(l,GlobalDir+"mail-whitelist","mailWhitelist");
770 GenForward(l,GlobalDir+"forward-alias");
776 Line = string.strip(Line);
782 Split = string.split(Line," ");
783 OutDir = GenerateDir + '/' + Split[0] + '/';
784 try: os.mkdir(OutDir);
787 # Get the group list and convert any named groups to numerics
795 if GroupIDMap.has_key(I):
796 GroupList[str(GroupIDMap[I])] = None;
801 CurrentHost = Split[0];
804 GenPasswd(l,OutDir+"passwd",Split[1]);
806 GenGroup(l,OutDir+"group");
807 if ExtraList.has_key("[UNTRUSTED]"):
809 GenShadow(l,OutDir+"shadow");
811 # Link in global things
812 DoLink(GlobalDir,OutDir,"ssh-rsa-shadow");
813 DoLink(GlobalDir,OutDir,"markers");
814 DoLink(GlobalDir,OutDir,"mail-forward.cdb");
815 DoLink(GlobalDir,OutDir,"debianhosts");
816 DoLink(GlobalDir,OutDir,"ssh_known_hosts");
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")