#!/usr/bin/python

# -*- coding: utf-8 -*-

# Authors:

#   Thomas Woerner <twoerner@redhat.com>

#

# Based on ipa-client-install code

#

# Copyright (C) 2018  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, either version 3 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, see <http://www.gnu.org/licenses/>.

ANSIBLE_METADATA = {

    'metadata_version': '1.0',

    'supported_by': 'community',

    'status': ['preview'],

}

DOCUMENTATION = '''

---

module: ipaclient_setup_krb5

short description: Setup krb5 for IPA client

description:

  Setup krb5 for IPA client

options:

  domain:

    description: Primary DNS domain of the IPA deployment

    required: yes

  servers:

    description: Fully qualified name of IPA servers to enroll to

    required: yes

  realm:

    description: Kerberos realm name of the IPA deployment

    required: yes

  hostname:

    description: Fully qualified name of this host

    required: yes

  kdc:

    description: The name or address of the host running the KDC

    required: yes

  dnsok:

    description: The installer dnsok setting

    required: yes

  client_domain:

    description: Primary DNS domain of the IPA deployment

    required: yes

  sssd:

    description: The installer sssd setting

    required: yes

  force:

    description: Installer force parameter

    required: yes

author:

    - Thomas Woerner

'''

EXAMPLES = '''

# Backup and set hostname

- name: Backup and set hostname

  ipaclient_setup_krb5:

    server:

    domain:

    realm:

    hostname: client1.example.com

'''

RETURN = '''

'''

from ansible.module_utils.basic import AnsibleModule

from ansible.module_utils.ansible_ipa_client import (

    setup_logging, sysrestore, paths, configure_krb5_conf, logger

)

def main():

    module = AnsibleModule(

        argument_spec=dict(

            domain=dict(required=False, default=None),

            servers=dict(required=False, type='list', default=None),

            realm=dict(required=False, default=None),

            hostname=dict(required=False, default=None),

            kdc=dict(required=False, default=None),

            dnsok=dict(required=False, type='bool', default=False),

            client_domain=dict(required=False, default=None),

            sssd=dict(required=False, type='bool', default=False),

            force=dict(required=False, type='bool', default=False),

            # on_master=dict(required=False, type='bool', default=False),

        ),

        supports_check_mode=True,

    )

    module._ansible_debug = True

    setup_logging()

    servers = module.params.get('servers')

    domain = module.params.get('domain')

    realm = module.params.get('realm')

    hostname = module.params.get('hostname')

    kdc = module.params.get('kdc')

    dnsok = module.params.get('dnsok')

    client_domain = module.params.get('client_domain')

    sssd = module.params.get('sssd')

    force = module.params.get('force')

    # on_master = module.params.get('on_master')

    fstore = sysrestore.FileStore(paths.IPA_CLIENT_SYSRESTORE)

    # if options.on_master:

    #     # If on master assume kerberos is already configured properly.

    #     # Get the host TGT.

    #     try:

    #         kinit_keytab(host_principal, paths.KRB5_KEYTAB, CCACHE_FILE,

    #                      attempts=options.kinit_attempts)

    #         os.environ['KRB5CCNAME'] = CCACHE_FILE

    #     except gssapi.exceptions.GSSError as e:

    #         logger.error("Failed to obtain host TGT: %s", e)

    #         raise ScriptError(rval=CLIENT_INSTALL_ERROR)

    # else:

    # Configure krb5.conf

    fstore.backup_file(paths.KRB5_CONF)

    configure_krb5_conf(

        cli_realm=realm,

        cli_domain=domain,

        cli_server=servers,

        cli_kdc=kdc,

        dnsok=dnsok,

        filename=paths.KRB5_CONF,

        client_domain=client_domain,

        client_hostname=hostname,

        configure_sssd=sssd,

        force=force)

    logger.info(

        "Configured /etc/krb5.conf for IPA realm %s", realm)

    module.exit_json(changed=True)

if __name__ == '__main__':

    main()