#!/usr/bin/env python

# Sync PostgreSQL users with system users
# Copyright (C) 2001, 2002  James Troup <james@nocrew.org>
# $Id: julia,v 1.9 2003-01-02 18:12:50 troup Exp $

# 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

################################################################################

# <aj> ARRRGGGHHH
# <aj> what's wrong with me!?!?!?
# <aj> i was just nice to some mormon doorknockers!!!
# <Omnic> AJ?!?!
# <aj> i know!!!!!
# <Omnic> I'm gonna have to kick your ass when you come over
# <Culus> aj: GET THE HELL OUT OF THE CABAL! :P

################################################################################

import pg, pwd, sys;
import utils;
import apt_pkg;

################################################################################

Cnf = None;
projectB = None;
################################################################################

def usage (exit_code=0):
    print """Usage: julia [OPTION]...
Sync PostgreSQL's users with system users.

  -h, --help                 show this help and exit
  -n, --no-action            don't do anything
  -q, --quiet                be quiet about what is being done
  -v, --verbose              explain what is being done"""
    sys.exit(exit_code)

################################################################################

def main ():
    global Cnf, projectB;

    Cnf = utils.get_conf()

    Arguments = [('n', "no-action", "Julia::Options::No-Action"),
                 ('q', "quiet", "Julia::Options::Quiet"),
                 ('v', "verbose", "Julia::Options::Verbose"),
                 ('h', "help", "Julia::Options::Help")];
    for i in [ "no-action", "quiet", "verbose", "help" ]:
	if not Cnf.has_key("Julia::Options::%s" % (i)):
	    Cnf["Julia::Options::%s" % (i)] = "";

    arguments = apt_pkg.ParseCommandLine(Cnf,Arguments,sys.argv);
    Options = Cnf.SubTree("Julia::Options")

    if Options["Help"]:
        usage();
    elif arguments:
        utils.warn("julia takes no non-option arguments.");
        usage(1);

    projectB = pg.connect(Cnf["DB::Name"], Cnf["DB::Host"], int(Cnf["DB::Port"]));
    valid_gid = int(Cnf.get("Julia::ValidGID",""));

    passwd_unames = {};
    for entry in pwd.getpwall():
        uname = entry[0];
        gid = entry[3];
        if valid_gid and gid != valid_gid:
            if Options["Verbose"]:
                print "Skipping %s (GID %s != Valid GID %s)." % (uname, gid, valid_gid);
            continue;
        passwd_unames[uname] = "";

    postgres_unames = {};
    q = projectB.query("SELECT usename FROM pg_user");
    ql = q.getresult();
    for i in ql:
        uname = i[0];
        postgres_unames[uname] = "";

    known_postgres_unames = {};
    for i in Cnf.get("Julia::KnownPostgres","").split(","):
        uname = i.strip();
        known_postgres_unames[uname] = "";

    keys = postgres_unames.keys()
    keys.sort();
    for uname in keys:
        if not passwd_unames.has_key(uname)and not known_postgres_unames.has_key(uname):
            print "W: %s is in Postgres but not the passwd file or list of known Postgres users." % (uname);

    keys = passwd_unames.keys()
    keys.sort();
    for uname in keys:
        if not postgres_unames.has_key(uname):
            if not Options["Quiet"]:
                print "Creating %s user in Postgres." % (uname);
            if not Options["No-Action"]:
                q = projectB.query('CREATE USER "%s"' % (uname));

#######################################################################################

if __name__ == '__main__':
    main()