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#!/usr/bin/python
#  Copyright (C) 2011 Gluster, Inc. <http://www.gluster.com>
#  This file is part of Gluster Management Gateway (GlusterMG).
#
#  GlusterMG 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 3 of the License,
#  or (at your option) any later version.
#
#  GlusterMG 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, see
#  <http://www.gnu.org/licenses/>.
#

import os
import sys
p1 = os.path.abspath(os.path.dirname(sys.argv[0]))
p2 = "%s/common" % os.path.dirname(p1)
if not p1 in sys.path:
    sys.path.append(p1)
if not p2 in sys.path:
    sys.path.append(p2)
import Globals
import Utils


def removeUser(userName):
    lines = Utils.readFile(Globals.CIFS_USER_FILE, lines=True)
    try:
        fp = open(Globals.CIFS_USER_FILE, "w")
        for line in lines:
            if not line.strip():
                continue
            if line.split(":")[1] == userName:
                continue
            fp.write("%s\n" % line)
        fp.close()
    except IOError, e:
        Utils.log("failed to write file %s: %s" % (Globals.CIFS_USER_FILE, str(e)))
        return False
    return True


def main():
    if len(sys.argv) < 3:
        sys.stderr.write("usage: %s SERVER_FILE USERNAME\n" % os.path.basename(sys.argv[0]))
        sys.exit(-1)

    serverFile = sys.argv[1]
    userName = sys.argv[2]

    rv = Utils.grun(serverFile, "delete_user_cifs.py", [userName])
    if rv == 0:
        if not removeUser(userName):
            Utils.log("Failed to remove the user:%s on gateway server\n" % userName)
            sys.exit(0)
    sys.exit(rv)


if __name__ == "__main__":
    main()