#! /usr/bin/python -E
# Authors: Karl MacMillan <kmacmillan@mentalrootkit.com>
#
# Copyright (C) 2007  Red Hat
# see file 'COPYING' for use and warranty information
#
# 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; version 2 or later
#
# 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
#

import sys
sys.path.append("/usr/share/ipa")

import tempfile
from ConfigParser import SafeConfigParser

from ipa import ipautil

from ipaserver import dsinstance, replication, installutils, krbinstance, service
from ipaserver import httpinstance, webguiinstance, radiusinstance, ntpinstance

class ReplicaConfig:
    def __init__(self):
        self.realm_name = ""
        self.master_host_name = ""
        self.dirman_password = ""
        self.ds_user = ""
        self.host_name = ""
        self.repl_password = ""
        self.dir = ""

def parse_options():
    from optparse import OptionParser
    parser = OptionParser()
    parser.add_option("-r", "--read-only", dest="master", action="store_false",
                      default=True, help="create read-only replica - default is master")

    options, args = parser.parse_args()

    if len(args) != 1:
        parser.error("you must provide a file generated by ipa-replica-prepare")

    return options, args[0]

def get_dirman_password():
    return installutils.read_password("Directory Manager (existing master)")

def expand_info(filename):
    top_dir = tempfile.mkdtemp("ipa")
    dir = top_dir + "/realm_info"
    ipautil.run(["tar", "xfz", filename, "-C", top_dir])

    return top_dir, dir

def read_info(dir, rconfig):
    filename = dir + "/realm_info"
    fd = open(filename)
    config = SafeConfigParser()
    config.readfp(fd)

    rconfig.realm_name = config.get("realm", "realm_name")
    rconfig.master_host_name = config.get("realm", "master_host_name")
    rconfig.ds_user = config.get("realm", "ds_user")

def get_host_name():
    hostname = installutils.get_fqdn()
    try:
        installutils.verify_fqdn(hostname)
    except RuntimeError, e:
        logging.error(str(e))
        sys.exit(1)

    return hostname

def install_ds(config):
    dsinstance.check_existing_installation()
    dsinstance.check_ports()

    ds = dsinstance.DsInstance()
    ds.create_instance(config.ds_user, config.realm_name, config.host_name, config.dirman_password)

def install_krb(config):
    krb = krbinstance.KrbInstance()
    ldappwd_filename = config.dir + "/ldappwd"
    krb.create_replica(config.ds_user, config.realm_name, config.host_name,
                       config.dirman_password, ldappwd_filename)

def install_http(config):
    http = httpinstance.HTTPInstance()
    http.create_instance(config.realm_name, config.host_name)

def main():
    options, filename = parse_options()
    top_dir, dir = expand_info(filename)
    
    config = ReplicaConfig()
    read_info(dir, config)
    config.host_name = get_host_name()
    config.repl_password = "box"
    config.dir = dir

    # get the directory manager password
    config.dirman_password = get_dirman_password()

    install_ds(config)
    
    repl = replication.ReplicationManager(config.host_name, config.dirman_password)
    repl.setup_replication(config.master_host_name, config.realm_name, options.master)

    install_krb(config)
    install_http(config)
    
    # Create a Web Gui instance
    webgui = webguiinstance.WebGuiInstance()
    webgui.create_instance()

    # Create a radius instance
    radius = radiusinstance.RadiusInstance()
    # FIXME: ldap_server should be derived, not hardcoded to localhost, also should it be a URL?
    radius.create_instance(config.realm_name, config.host_name, 'localhost')

    # Configure ntpd
    ntp = ntpinstance.NTPInstance()
    ntp.create_instance()


    service.restart("dirsrv")
    service.restart("krb5kdc")
    
main()