actions/xrds.php

   1 <?php
   2 /*
   3  * Laconica - a distributed open-source microblogging tool
   4  * Copyright (C) 2008, Controlez-Vous, Inc.
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU Affero General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU Affero General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Affero General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 if (!defined('LACONICA')) { exit(1); }
  21
  22 define('OAUTH_NAMESPACE', 'http://oauth.net/core/1.0/');
  23 define('OMB_NAMESPACE', 'http://openmicroblogging.org/protocol/0.1');
  24 define('OAUTH_DISCOVERY', 'http://oauth.net/discovery/1.0');
  25
  26 define('OMB_ENDPOINT_UPDATEPROFILE', OMB_NAMESPACE.'updateProfile');
  27 define('OAUTH_ENDPOINT_REQUEST', OAUTH_NAMESPACE.'endpoint/request');
  28 define('OAUTH_ENDPOINT_AUTHORIZE', OAUTH_NAMESPACE.'endpoint/authorize');
  29 define('OAUTH_ENDPOINT_ACCESS', OAUTH_NAMESPACE.'endpoint/access');
  30 define('OAUTH_ENDPOINT_RESOURCE', OAUTH_NAMESPACE.'endpoint/resource');
  31 define('OAUTH_AUTH_HEADER', OAUTH_NAMESPACE.'parameters/auth-header');
  32 define('OAUTH_POST_BODY', OAUTH_NAMESPACE.'parameters/post-body');
  33 define('OAUTH_HMAC_SHA1', OAUTH_NAMESPACE.'signature/HMAC-SHA1');
  34
  35 class XrdsAction extends Action {
  36
  37         function handle($args) {
  38                 parent::handle($args);
  39                 $nickname = $this->trimmed('nickname');
  40                 $user = User::staticGet('nickname', $nickname);
  41                 if (!$user) {
  42                         common_user_error(_t('No such user.'));
  43                         return;
  44                 }
  45                 $this->show_xrds($user);
  46         }
  47
  48         function show_xrds($user) {
  49
  50                 header('Content-Type: application/rdf+xml');
  51
  52                 common_start_xml();
  53                 common_element_start('XRDS', array('xmlns' => 'xri://$xrds'));
  54
  55                 common_element_start('XRD', array('xmlns' => 'xri://$xrd*($v*2.0)',
  56                                                   'xml:id' => 'oauth',
  57                                                                                   'xmlns:simple' => 'http://xrds-simple.net/core/1.0',
  58                                                                                   'version' => '2.0'));
  59
  60                 common_element('Type', NULL, 'xri://$xrds*simple');
  61
  62                 $this->show_service(OAUTH_ENDPONT_REQUEST,
  63                                                         common_local_url('requesttoken'),
  64                                                         array(OAUTH_AUTH_HEADER, OAUTH_POST_BODY),
  65                                                         array(OAUTH_HMAC_SHA1),
  66                                                         $user->getUri());
  67
  68                 $this->show_service(OAUTH_ENDPONT_AUTHORIZE,
  69                                                         common_local_url('userauthorization'),
  70                                                         array(OAUTH_AUTH_HEADER, OAUTH_POST_BODY),
  71                                                         array(OAUTH_HMAC_SHA1),
  72                                                         $user->getUri());
  73
  74                 $this->show_service(OAUTH_ENDPONT_ACCESS,
  75                                                         common_local_url('accesstoken'),
  76                                                         array(OAUTH_AUTH_HEADER, OAUTH_POST_BODY),
  77                                                         array(OAUTH_HMAC_SHA1));
  78
  79                 $this->show_service(OAUTH_ENDPONT_RESOURCE,
  80                                                         NULL,
  81                                                         array(OAUTH_AUTH_HEADER, OAUTH_POST_BODY),
  82                                                         array(OAUTH_HMAC_SHA1));
  83
  84                 common_element_end('XRD');
  85
  86                 # XXX: decide whether to include user's ID/nickname in postNotice URL
  87
  88                 common_element_start('XRD', array('xmlns' => 'xri://$xrd*($v*2.0)',
  89                                                   'xml:id' => 'omb',
  90                                                                                   'xmlns:simple' => 'http://xrds-simple.net/core/1.0',
  91                                                                                   'version' => '2.0'));
  92
  93                 common_element('Type', NULL, 'xri://$xrds*simple');
  94
  95                 $this->show_service(OMB_ENDPONT_POSTNOTICE,
  96                                                         common_local_url('postnotice'));
  97
  98                 $this->show_service(OMB_ENDPONT_UPDATEPROFILE,
  99                                                         common_local_url('updateprofile'));
 100
 101                 common_element_end('XRD');
 102
 103                 common_element_start('XRD', array('xmlns' => 'xri://$xrd*($v*2.0)',
 104                                                                                   'version' => '2.0'));
 105
 106                 common_element('Type', NULL, 'xri://$xrds*simple');
 107
 108                 $this->show_service(OAUTH_DISCOVERY,
 109                                                         '#oauth');
 110                 $this->show_service(OMB_NAMESPACE,
 111                                                         '#omb');
 112
 113                 common_element_end('XRD');
 114
 115                 common_element_end('XRDS');
 116                 common_end_xml();
 117         }
 118
 119         function show_service($type, $uri, $params=NULL, $signature=NULL, $localId=NULL) {
 120                 common_element_start('Service');
 121                 common_element('Type', $type);
 122                 common_element('URI', $uri);
 123                 common_element_end('Service');
 124         }
 125 }