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According to my previous howto regarding ISPConfig and Courier's userdb, there are some problems with some crypted passwords. In particular, passwords may contain the delimiter (|) and the back quote (`) for evaluation in bash shell. As a result, the generated userdb will be invalid. Below is the script to fix these problems.

Note that I wrote below code in pure Python and it shown its high performance for manipulating system configuration.

/usr/local/bin/userdb2ispconfig

#!/usr/bin/env python
 
import re
import os
import pwd
 
SHADOW = '/etc/shadow'
USERDB = '/etc/courier/userdb'
MAKEUSERDB = '/usr/sbin/makeuserdb'
 
class SPwd:
    def __init__(self):
        self.getspall()
 
    def getspnam(self,name):
        return self._dict[name]
 
    def getspall(self):
        self._dict = {}
        self._list = []
        f = open(SHADOW,'r')
        for line in f.readlines():
            v = line.strip().split(':')
            self._dict[v[0]] = v
            self._list.append(v)
        f.close()
        return self._list
 
spwd = SPwd()
 
class Application:
    def __init__(self):
        pass
 
    def run(self):
        lines = []
        for user in pwd.getpwall():
            username,password,uid,gid,gecos,home,shell = user
            shadow = spwd.getspnam(username)[1]
            if home.startswith('/var/www/web'):
                domain,username = username.split('_')
                udb_line = self.generate_line(username,domain,uid,gid,home,shell,password,shadow)
                lines.append(udb_line)
        self.save(lines)
        os.system(MAKEUSERDB)
 
    def save(self,lines):
        os.unlink(USERDB)
        fd = open(USERDB,'w')
        for line in lines:
            fd.write(line+'\n')
        fd.close()
        os.chmod(USERDB,0600)
 
    def generate_line(self,username,domain,uid,gid,home,shell,password,shadow):
        return "%(username)s@%(domain)s\tuid=%(uid)s|gid=%(gid)s|home=%(home)s|shell=%(shell)s|mail=/var/www/www.%(domain)s/user/%(domain)s_%(username)s/Maildir|systempw=%(password)s" % {
            'username': username,
            'domain': domain,
            'uid': uid,
            'gid': gid,
            'home': home,
            'shell': shell,
            'password': shadow}
 
if __name__ == '__main__':
    app = Application()
    app.run()
 

Tags: ispconfig, courier, userdb

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updated: 2007/05/08 makeuserdb has been moved to /usr/sbin