import userdir_gpg, userdir_ldap, sys, traceback, time, ldap, os, commands
import pwd, tempfile
import subprocess
+import email, email.parser
from userdir_gpg import *
from userdir_ldap import *
mailWhitelist = {}
SeenList = {}
DNS = {}
-SudoPasswd = {}
ValidHostNames = [] # will be initialized in later
SSHFingerprint = re.compile('^(\d+) ([0-9a-f\:]{47}) (.+)$')
Match = SSHFingerprint.match(output)
g = Match.groups()
- if int(g[0]) < 1024:
+ if typekey == "ssh-rsa":
+ key_size_ok = (g[0]) >= 2048)
+ elif typekey == "ed25519":
+ key_size_ok = True
+ else:
+ key_size_ok = False
+
+ if not key_size_ok:
try:
# Body
- Subst["__ERROR__"] = "SSH keysize %s is below limit 1024" % (g[0])
+ Subst["__ERROR__"] = "SSH key fails formal criteria. We only accept RSA keys (>= 2048 bits) or ed25519 keys." % (g[0])
ErrReply = TemplateSubst(Subst,open(TemplatesDir+"admin-info","r").read())
Child = os.popen("/usr/sbin/sendmail -t","w")
sys.exit(EX_TEMPFAIL)
# And now break and stop processing input, which sends a reply to the user.
- raise UDFormatError, "SSH keys must have at least 1024 bits, processing halted, NOTHING MODIFIED AT ALL"
+ raise UDFormatError, "SSH key fails formal criteria, NOTHING MODIFIED AT ALL"
elif g[1] in badkeys:
try:
# Body
# And now break and stop processing input, which sends a reply to the user.
raise UDFormatError, "Submitted SSH Key known to be bad and insecure, processing halted, NOTHING MODIFIED AT ALL"
- if (typekey == "dss"):
- return "DSA keys not accepted anymore"
-
global SeenKey;
if SeenKey:
Attrs.append((ldap.MOD_ADD,"sshRSAAuthKey",Str));
return "SSH Key added "+FormatSSHAuth(Str);
-
+
Attrs.append((ldap.MOD_REPLACE,"sshRSAAuthKey",Str));
SeenKey = 1;
return "SSH Keys replaced with "+FormatSSHAuth(Str);
return "%s replaced with %s" % (Key,Host)
# Handle a ConfirmSudoPassword request
-def DoConfirmSudopassword(Str):
- Match = re.compile('^confirm sudopassword ('+UUID_FORMAT+') ([a-z0-9.,*]+) ([0-9a-f]{40})$').match(Str)
+def DoConfirmSudopassword(Str, SudoPasswd):
+ Match = re.compile('^confirm sudopassword ('+UUID_FORMAT+') ([a-z0-9.,*-]+) ([0-9a-f]{40})$').match(Str)
if Match == None:
return None
hosts = Match.group(2)
hmac = Match.group(3)
- global SudoPasswd
SudoPasswd[uuid] = (hosts, hmac)
return "got confirm for sudo password %s on host(s) %s, auth code %s" % (uuid,hosts, hmac)
-def FinishConfirmSudopassword(l, uid, Attrs):
- global SudoPasswd
+def FinishConfirmSudopassword(l, uid, Attrs, SudoPasswd):
result = "\n"
+ if len(SudoPasswd) == 0:
+ return None
+
res = l.search_s(BaseDn,ldap.SCOPE_ONELEVEL,"uid="+uid, ['sudoPassword']);
if len(res) != 1:
raise UDFormatError, "Not exactly one hit when searching for user"
newldap = []
for entry in inldap:
- Match = re.compile('^('+UUID_FORMAT+') (confirmed:[0-9a-f]{40}|unconfirmed) ([a-z0-9.,*]+) ([^ ]+)$').match(entry)
+ Match = re.compile('^('+UUID_FORMAT+') (confirmed:[0-9a-f]{40}|unconfirmed) ([a-z0-9.,*-]+) ([^ ]+)$').match(entry)
if Match == None:
raise UDFormatError, "Could not parse existing sudopasswd entry"
uuid = Match.group(1)
Result = "";
Attrs = [];
+ SudoPasswd = {}
Show = 0;
CommitChanges = 1
for Line in Lines:
badkeys = LoadBadSSH()
Res = DoPosition(Line,Attrs) or DoDNS(Line,Attrs,DnRecord) or \
DoArbChange(Line,Attrs) or DoSSH(Line,Attrs,badkeys,GetAttr(DnRecord,"uid")) or \
- DoDel(Line,Attrs) or DoRBL(Line,Attrs) or DoConfirmSudopassword(Line)
+ DoDel(Line,Attrs) or DoRBL(Line,Attrs) or DoConfirmSudopassword(Line, SudoPasswd)
except:
Res = None;
Result = Result + "==> %s: %s\n" %(sys.exc_type,sys.exc_value);
# Connect to the ldap server
l = connect_to_ldap_and_check_if_locked(DnRecord)
- if CommitChanges == 1: # only if we are still good to go
+ if CommitChanges == 1 and len(SudoPasswd) > 0: # only if we are still good to go
try:
- Res = FinishConfirmSudopassword(l, GetAttr(DnRecord,"uid"), Attrs)
- Result = Result + Res + "\n";
+ Res = FinishConfirmSudopassword(l, GetAttr(DnRecord,"uid"), Attrs, SudoPasswd)
+ if not Res is None:
+ Result = Result + Res + "\n";
except Error, e:
CommitChanges = 0
Result = Result + "FinishConfirmSudopassword raised an error (%s) - no changes committed\n"%(e);
- # Modify the record
- if CommitChanges == 1:
+ if CommitChanges == 1 and len(Attrs) > 0:
Dn = "uid=" + GetAttr(DnRecord,"uid") + "," + BaseDn;
l.modify_s(Dn,Attrs);
# Get the email
ErrType = EX_PERMFAIL;
ErrMsg = "Failed to understand the email or find a signature:";
- Email = mimetools.Message(sys.stdin,0);
- Msg = GetClearSig(Email);
+ mail = email.parser.Parser().parse(sys.stdin);
+ Msg = GetClearSig(mail);
ErrMsg = "Message is not PGP signed:"
if Msg[0].find("-----BEGIN PGP SIGNED MESSAGE-----") == -1 and \
global PlainText;
ErrMsg = "Problem stripping MIME headers from the decoded message"
if Msg[1] == 1:
- try:
- Index = pgp.text.index("\n\n") + 2
- except ValueError:
- Index = pgp.text.index("\n\r\n") + 3
- PlainText = pgp.text[Index:]
+ e = email.parser.Parser().parsestr(pgp.text)
+ PlainText = e.get_payload(decode=True)
else:
PlainText = pgp.text
# Check the signature against the replay cache
RC = ReplayCache(ReplayCacheFile);
- RC.Clean();
- ErrMsg = "The replay cache rejected your message. Check your clock!";
- Rply = RC.Check(pgp.sig_info);
- if Rply != None:
- RC.close()
- raise UDNotAllowedError, Rply;
- RC.Add(pgp.sig_info);
- RC.close()
+ RC.process(pgp.sig_info)
# Determine the sender address
ErrMsg = "A problem occured while trying to formulate the reply";
- Sender = Email.getheader("Reply-To");
- if Sender == None:
- Sender = Email.getheader("From");
- if Sender == None:
- raise UDFormatError, "Unable to determine the sender's address";
+ Sender = mail['Reply-To']
+ if not Sender: Sender = mail['From']
+ if not Sender: raise UDFormatError, "Unable to determine the sender's address";
# Formulate a reply
Date = time.strftime("%a, %d %b %Y %H:%M:%S +0000",time.gmtime(time.time()));
projects / mirror / userdir-ldap.git / blobdiff