#!python
# Copyright (c) 2010-2011 OpenStack, LLC.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from getpass import getpass
import gettext
import json
from optparse import OptionParser
from sys import argv
from sys import exit

from six.moves.urllib.parse import urlparse
from swift.common.bufferedhttp import http_connect_raw as http_connect


if __name__ == '__main__':
    gettext.install('swauth', unicode=1)
    parser = OptionParser(usage='''
Usage: %prog [options] <account> <service> <name> <value>

Sets a service URL for an account. Can only be set by a reseller admin.

Example: %prog -K swauthkey test storage local
          http://127.0.0.1:8080/v1/AUTH_018c3946-23f8-4efb-a8fb-b67aae8e4162
'''.strip())
    parser.add_option('-A', '--admin-url', dest='admin_url',
        default='http://127.0.0.1:8080/auth/', help='The URL to the auth '
        'subsystem (default: http://127.0.0.1:8080/auth/)')
    parser.add_option('-U', '--admin-user', dest='admin_user',
        default='.super_admin', help='The user with admin rights to add users '
        '(default: .super_admin).')
    parser.add_option('-K', '--admin-key', dest='admin_key',
        help='The key for the user with admin rights to add users.')
    args = argv[1:]
    if not args:
        args.append('-h')
    (options, args) = parser.parse_args(args)
    if len(args) != 4:
        parser.parse_args(['-h'])
    if not options.admin_key:
        options.admin_key = getpass()
    account, service, name, url = args
    parsed = urlparse(options.admin_url)
    if parsed.scheme not in ('http', 'https'):
        raise ValueError('Cannot handle protocol scheme %s for url %s' %
                         (parsed.scheme, repr(options.admin_url)))
    parsed_path = parsed.path
    if not parsed_path:
        parsed_path = '/'
    elif parsed_path[-1] != '/':
        parsed_path += '/'
    path = '%sv2/%s/.services' % (parsed_path, account)
    body = json.dumps({service: {name: url}})
    headers = {'Content-Length': str(len(body)),
               'X-Auth-Admin-User': options.admin_user,
               'X-Auth-Admin-Key': options.admin_key}
    conn = http_connect(parsed.hostname, parsed.port, 'POST', path, headers,
                        ssl=(parsed.scheme == 'https'))
    conn.send(body)
    resp = conn.getresponse()
    if resp.status // 100 != 2:
        exit('Service set failed: %s %s' % (resp.status, resp.reason))
