+# Copyright (c) 1999-2000 Jason Gunthorpe <jgg@debian.org>
+# Copyright (c) 2001-2003 Ryan Murray <rmurray@debian.org>
+# Copyright (c) 2004-2005 Joey Schulze <joey@infodrom.org>
+# Copyright (c) 2008 Peter Palfrader <peter@palfrader.org>
+# Copyright (c) 2008 Thomas Viehmann <tv@beamnet.de>
+#
+# 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 2 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, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
# Some routines and configuration that are used by the ldap progams
-import termios, TERMIOS, re, string, imp, ldap, sys, whrandom, crypt;
+import termios, re, imp, ldap, sys, crypt, rfc822, pwd, os, getpass
+import userdir_gpg
+import hmac
+import hashlib
try:
File = open("/etc/userdir-ldap/userdir-ldap.conf");
ConfModule = imp.load_source("userdir_config","/etc/userdir-ldap.conf",File);
File.close();
+# Cheap hack
BaseDn = ConfModule.basedn;
-BaseDn = ConfModule.basedn;
+HostBaseDn = ConfModule.hostbasedn;
LDAPServer = ConfModule.ldaphost;
EmailAppend = ConfModule.emailappend;
AdminUser = ConfModule.adminuser;
GenerateDir = ConfModule.generatedir;
-GenerateConf = ConfModule.generateconf;
-DefaultGID = ConfModule.defaultgid;
+AllowedGroupsPreload = ConfModule.allowedgroupspreload;
+HomePrefix = ConfModule.homeprefix;
TemplatesDir = ConfModule.templatesdir;
PassDir = ConfModule.passdir;
+Ech_ErrorLog = ConfModule.ech_errorlog;
+Ech_MainLog = ConfModule.ech_mainlog;
+HostDomain = getattr(ConfModule, "hostdomain", EmailAppend)
+
+try:
+ UseSSL = ConfModule.usessl;
+except AttributeError:
+ UseSSL = False;
+
+try:
+ BaseBaseDn = ConfModule.basebasedn;
+except AttributeError:
+ BaseBaseDn = BaseDn
+
+try:
+ IgnoreUsersForUIDNumberGen = ConfModule.ignoreusersforuidnumbergen
+except AttributeError:
+ IgnoreUsersForUIDNumberGen = ['nobody']
+
+
+# Break up the keyring list
+userdir_gpg.SetKeyrings(ConfModule.keyrings.split(":"))
# This is a list of common last-name prefixes
-LastNamesPre = {"van": None, "le": None, "de": None, "di": None};
+LastNamesPre = {"van": None, "von": None, "le": None, "de": None, "di": None};
+
+# This is a list of common groups on Debian hosts
+DebianGroups = {
+ "Debian": 800,
+ "guest": 60000,
+ "nogroup": 65534
+ }
+
+# ObjectClasses for different object types
+UserObjectClasses = ("top", "inetOrgPerson", "debianAccount", "shadowAccount", "debianDeveloper")
+RoleObjectClasses = ("top", "debianAccount", "shadowAccount", "debianRoleAccount")
+GroupObjectClasses = ("top", "debianGroup")
# SSH Key splitting. The result is:
# (options,size,modulous,exponent,comment)
-SSHAuthSplit = re.compile('^(.* )?(\d+) (\d+) (\d+) (.+)$');
+SSHAuthSplit = re.compile('^(.* )?(\d+) (\d+) (\d+) ?(.+)$');
+SSH2AuthSplit = re.compile('^(.* )?ssh-(dss|rsa|ecdsa-sha2-nistp(?:256|384|521)|ed25519) ([a-zA-Z0-9=/+]+) ?(.+)$');
#'^([^\d](?:[^ "]+(?:".*")?)*)? ?(\d+) (\d+) (\d+) (.+)$');
+AddressSplit = re.compile("(.*).*<([^@]*)@([^>]*)>");
+
# Safely get an attribute from a tuple representing a dn and an attribute
# list. It returns the first attribute if there are multi.
def GetAttr(DnRecord,Attribute,Default = ""):
Result = Result + "%s: %s\n" % (x,i);
return Result[:-1];
-# Function to prompt for a password
-def getpass(prompt = "Password: "):
- import termios, TERMIOS, sys;
- fd = sys.stdin.fileno();
- old = termios.tcgetattr(fd);
- new = termios.tcgetattr(fd);
- new[3] = new[3] & ~TERMIOS.ECHO; # lflags
- try:
- termios.tcsetattr(fd, TERMIOS.TCSADRAIN, new);
- passwd = raw_input(prompt);
- finally:
- termios.tcsetattr(fd, TERMIOS.TCSADRAIN, old);
- print;
- return passwd;
+def connectLDAP(server = None):
+ if server == None:
+ global LDAPServer
+ server = LDAPServer
+ l = ldap.open(server);
+ global UseSSL
+ if UseSSL:
+ l.start_tls_s();
+ return l;
+
+def passwdAccessLDAP(BaseDn, AdminUser):
+ """
+ Ask for the AdminUser's password and connect to the LDAP server.
+ Returns the connection handle.
+ """
+ print "Accessing LDAP directory as '" + AdminUser + "'";
+ while (1):
+ if 'LDAP_PASSWORD' in os.environ:
+ Password = os.environ['LDAP_PASSWORD']
+ else:
+ Password = getpass.getpass(AdminUser + "'s password: ")
+
+ if len(Password) == 0:
+ sys.exit(0)
+
+ l = connectLDAP()
+ UserDn = "uid=" + AdminUser + "," + BaseDn;
+
+ # Connect to the ldap server
+ try:
+ l.simple_bind_s(UserDn,Password);
+ except ldap.INVALID_CREDENTIALS:
+ if 'LDAP_PASSWORD' in os.environ:
+ print "password in environment does not work"
+ del os.environ['LDAP_PASSWORD']
+ continue
+ break
+ return l
# Split up a name into multiple components. This tries to best guess how
# to split up a name
def NameSplit(Name):
- Words = re.split(" ",string.strip(Name));
+ Words = re.split(" ", Name.strip())
# Insert an empty middle name
if (len(Words) == 2):
break;
# Merge any of the middle initials
- if len(Words) > 2:
- while len(Words[2]) == 2 and Words[2][1] == '.':
- Words[1] = Words[1] + Words[2];
- del Words[2];
+ while len(Words) > 2 and len(Words[2]) == 2 and Words[2][1] == '.':
+ Words[1] = Words[1] + Words[2];
+ del Words[2];
while len(Words) < 2:
Words.append('');
# Merge any of the last name prefixes into one big last name
- while LastNamesPre.has_key(string.lower(Words[-2])):
+ while LastNamesPre.has_key(Words[-2].lower()):
Words[-1] = Words[-2] + " " + Words[-1];
del Words[-2];
# If the name is multi-word then we glob them all into the last name and
# do not worry about a middle name
if (len(Words) > 3):
- Words[2] = string.join(Words[1:]);
+ Words[2] = " ".join(Words[1:])
Words[1] = "";
- return (string.strip(Words[0]),string.strip(Words[1]),string.strip(Words[2]));
+ return (Words[0].strip(), Words[1].strip(), Words[2].strip());
# Compute a random password using /dev/urandom
def GenPass():
SaltVals = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/.";
Rand = open("/dev/urandom");
Password = "";
- for i in range(0,10):
+ for i in range(0,15):
Password = Password + SaltVals[ord(Rand.read(1)[0]) % len(SaltVals)];
return Password;
def HashPass(Password):
# Hash it telling glibc to use the MD5 algorithm - if you dont have
# glibc then just change Salt = "$1$" to Salt = "";
- SaltVals = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/.";
+ SaltVals = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789/.";
Salt = "$1$";
+ Rand = open("/dev/urandom");
for x in range(0,10):
- Salt = Salt + SaltVals[whrandom.randint(0,len(SaltVals)-1)];
+ Salt = Salt + SaltVals[ord(Rand.read(1)[0]) % len(SaltVals)];
Pass = crypt.crypt(Password,Salt);
if len(Pass) < 14:
raise "Password Error", "MD5 password hashing failed, not changing the password!";
# Convert a lat/long attribute into Decimal degrees
def DecDegree(Posn,Anon=0):
- Parts = re.match('[+-]?(\d*)\\.?(\d*)?',Posn).groups();
- Val = string.atof(Posn);
+ Parts = re.match('[-+]?(\d*)\\.?(\d*)',Posn).groups();
+ Val = float(Posn);
if (abs(Val) >= 1806060.0):
raise ValueError,"Too Big";
return "+" + Str;
return Str;
+def FormatSSH2Auth(Str):
+ Match = SSH2AuthSplit.match(Str);
+ if Match == None:
+ return "<unknown format>";
+ G = Match.groups();
+
+ if G[0] == None:
+ return "ssh-%s %s..%s %s"%(G[1],G[2][:8],G[2][-8:],G[3]);
+ return "%s ssh-%s %s..%s %s"%(G[0],G[1],G[2][:8],G[2][-8:],G[3]);
+
def FormatSSHAuth(Str):
Match = SSHAuthSplit.match(Str);
if Match == None:
- return "<unknown format>";
+ return FormatSSH2Auth(Str);
G = Match.groups();
# No options
if (len(Str) == 32):
I = 0;
while (I < len(Str)):
- if I+2 == 32/2:
+ if I == 32/2:
Res = "%s %s%s "%(Res,Str[I],Str[I+1]);
else:
Res = "%s%s%s "%(Res,Str[I],Str[I+1]);
# OpenPGP Print
I = 0;
while (I < len(Str)):
- if I+4 == 40/2:
+ if I == 40/2:
Res = "%s %s%s%s%s "%(Res,Str[I],Str[I+1],Str[I+2],Str[I+3]);
else:
Res = "%s%s%s%s%s "%(Res,Str[I],Str[I+1],Str[I+2],Str[I+3]);
I = I + 4;
else:
Res = Str;
- return Res;
+ return Res.strip()
+
+# Take an email address and split it into 3 parts, (Name,UID,Domain)
+def SplitEmail(Addr):
+ # Is not an email address at all
+ if Addr.find('@') == -1:
+ return (Addr,"","");
+ Res1 = rfc822.AddrlistClass(Addr).getaddress();
+ if len(Res1) != 1:
+ return ("","",Addr);
+ Res1 = Res1[0];
+ if Res1[1] == None:
+ return (Res1[0],"","");
+
+ # If there is no @ then the address was not parsed well. Try the alternate
+ # Parsing scheme. This is particularly important when scanning PGP keys.
+ Res2 = Res1[1].split("@");
+ if len(Res2) != 2:
+ Match = AddressSplit.match(Addr);
+ if Match == None:
+ return ("","",Addr);
+ return Match.groups();
+
+ return (Res1[0],Res2[0],Res2[1]);
+
+# Convert the PGP name string to a uid value. The return is a tuple of
+# (uid,[message strings]). UnknownMpa is a hash from email to uid that
+# overrides normal searching.
+def GetUID(l,Name,UnknownMap = {}):
+ # Crack up the email address into a best guess first/middle/last name
+ (cn,mn,sn) = NameSplit(re.sub('["]','',Name[0]))
+
+ # Brackets anger the ldap searcher
+ cn = re.sub('[(")]','?',cn);
+ sn = re.sub('[(")]','?',sn);
+
+ # First check the unknown map for the email address
+ if UnknownMap.has_key(Name[1] + '@' + Name[2]):
+ Stat = "unknown map hit for "+str(Name);
+ return (UnknownMap[Name[1] + '@' + Name[2]],[Stat]);
+
+ # Then the cruft component (ie there was no email address to match)
+ if UnknownMap.has_key(Name[2]):
+ Stat = "unknown map hit for"+str(Name);
+ return (UnknownMap[Name[2]],[Stat]);
+
+ # Then the name component (another ie there was no email address to match)
+ if UnknownMap.has_key(Name[0]):
+ Stat = "unknown map hit for"+str(Name);
+ return (UnknownMap[Name[0]],[Stat]);
+
+ # Search for a possible first/last name hit
+ try:
+ Attrs = l.search_s(BaseDn,ldap.SCOPE_ONELEVEL,"(&(cn=%s)(sn=%s))"%(cn,sn),["uid"]);
+ except ldap.FILTER_ERROR:
+ Stat = "Filter failure: (&(cn=%s)(sn=%s))"%(cn,sn);
+ return (None,[Stat]);
+
+ # Try matching on the email address
+ if (len(Attrs) != 1):
+ try:
+ Attrs = l.search_s(BaseDn,ldap.SCOPE_ONELEVEL,"emailforward=%s"%(Name[2]),["uid"]);
+ except ldap.FILTER_ERROR:
+ pass;
+
+ # Hmm, more than one/no return
+ if (len(Attrs) != 1):
+ # Key claims a local address
+ if Name[2] == EmailAppend:
+
+ # Pull out the record for the claimed user
+ Attrs = l.search_s(BaseDn,ldap.SCOPE_ONELEVEL,"(uid=%s)"%(Name[1]),["uid","sn","cn"]);
+
+ # We require the UID surname to be someplace in the key name, this
+ # deals with special purpose keys like 'James Troup (Alternate Debian key)'
+ # Some people put their names backwards on their key too.. check that as well
+ if len(Attrs) == 1 and \
+ ( sn.lower().find(Attrs[0][1]["sn"][0].lower()) != -1 or \
+ cn.lower().find(Attrs[0][1]["sn"][0].lower()) != -1 ):
+ Stat = EmailAppend+" hit for "+str(Name);
+ return (Name[1],[Stat]);
+
+ # Attempt to give some best guess suggestions for use in editing the
+ # override file.
+ Attrs = l.search_s(BaseDn,ldap.SCOPE_ONELEVEL,"(sn~=%s)"%(sn),["uid","sn","cn"]);
+
+ Stat = [];
+ if len(Attrs) != 0:
+ Stat = ["None for %s"%(str(Name))];
+ for x in Attrs:
+ Stat.append("But might be: %s %s <%s@debian.org>"%(x[1]["cn"][0],x[1]["sn"][0],x[1]["uid"][0]));
+ return (None,Stat);
+ else:
+ return (Attrs[0][1]["uid"][0],None);
+
+ return (None,None);
+
+def Group2GID(l, name):
+ """
+ Returns the numerical id of a common group
+ on error returns -1
+ """
+ for g in DebianGroups.keys():
+ if name == g:
+ return DebianGroups[g]
+
+ filter = "(gid=%s)" % name
+ res = l.search_s(BaseDn,ldap.SCOPE_ONELEVEL,filter,["gidNumber"]);
+ if res:
+ return int(GetAttr(res[0], "gidNumber"))
+
+ return -1
+
+def make_hmac(str):
+ if 'UD_HMAC_KEY' in os.environ:
+ HmacKey = os.environ['UD_HMAC_KEY']
+ else:
+ File = open(PassDir+"/key-hmac-"+pwd.getpwuid(os.getuid())[0],"r");
+ HmacKey = File.readline().strip()
+ File.close();
+ return hmac.new(HmacKey, str, hashlib.sha1).hexdigest()
+
+def make_passwd_hmac(status, purpose, uid, uuid, hosts, cryptedpass):
+ return make_hmac(':'.join([status, purpose, uid, uuid, hosts, cryptedpass]))
projects / mirror / userdir-ldap.git / blobdiff