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 require_once(INSTALLDIR.'/lib/omb.php');
  23
  24 class XrdsAction extends Action
  25 {
  26
  27     function is_readonly()
  28     {
  29         return true;
  30     }
  31
  32     function handle($args)
  33     {
  34         parent::handle($args);
  35         $nickname = $this->trimmed('nickname');
  36         $user = User::staticGet('nickname', $nickname);
  37         if (!$user) {
  38             common_user_error(_('No such user.'));
  39             return;
  40         }
  41         $this->show_xrds($user);
  42     }
  43
  44     function show_xrds($user)
  45     {
  46
  47         header('Content-Type: application/xrds+xml');
  48
  49         common_start_xml();
  50         common_element_start('XRDS', array('xmlns' => 'xri://$xrds'));
  51
  52         common_element_start('XRD', array('xmlns' => 'xri://$xrd*($v*2.0)',
  53                                           'xml:id' => 'oauth',
  54                                           'xmlns:simple' => 'http://xrds-simple.net/core/1.0',
  55                                           'version' => '2.0'));
  56
  57         common_element('Type', null, 'xri://$xrds*simple');
  58
  59         $this->show_service(OAUTH_ENDPOINT_REQUEST,
  60                             common_local_url('requesttoken'),
  61                             array(OAUTH_AUTH_HEADER, OAUTH_POST_BODY),
  62                             array(OAUTH_HMAC_SHA1),
  63                             $user->uri);
  64
  65         $this->show_service(OAUTH_ENDPOINT_AUTHORIZE,
  66                             common_local_url('userauthorization'),
  67                             array(OAUTH_AUTH_HEADER, OAUTH_POST_BODY),
  68                             array(OAUTH_HMAC_SHA1));
  69
  70         $this->show_service(OAUTH_ENDPOINT_ACCESS,
  71                             common_local_url('accesstoken'),
  72                             array(OAUTH_AUTH_HEADER, OAUTH_POST_BODY),
  73                             array(OAUTH_HMAC_SHA1));
  74
  75         $this->show_service(OAUTH_ENDPOINT_RESOURCE,
  76                             null,
  77                             array(OAUTH_AUTH_HEADER, OAUTH_POST_BODY),
  78                             array(OAUTH_HMAC_SHA1));
  79
  80         common_element_end('XRD');
  81
  82         # XXX: decide whether to include user's ID/nickname in postNotice URL
  83
  84         common_element_start('XRD', array('xmlns' => 'xri://$xrd*($v*2.0)',
  85                                           'xml:id' => 'omb',
  86                                           'xmlns:simple' => 'http://xrds-simple.net/core/1.0',
  87                                           'version' => '2.0'));
  88
  89         common_element('Type', null, 'xri://$xrds*simple');
  90
  91         $this->show_service(OMB_ENDPOINT_POSTNOTICE,
  92                             common_local_url('postnotice'));
  93
  94         $this->show_service(OMB_ENDPOINT_UPDATEPROFILE,
  95                             common_local_url('updateprofile'));
  96
  97         common_element_end('XRD');
  98
  99         common_element_start('XRD', array('xmlns' => 'xri://$xrd*($v*2.0)',
 100                                           'version' => '2.0'));
 101
 102         common_element('Type', null, 'xri://$xrds*simple');
 103
 104         $this->show_service(OAUTH_DISCOVERY,
 105                             '#oauth');
 106         $this->show_service(OMB_NAMESPACE,
 107                             '#omb');
 108
 109         common_element_end('XRD');
 110
 111         common_element_end('XRDS');
 112         common_end_xml();
 113     }
 114
 115     function show_service($type, $uri, $params=null, $sigs=null, $localId=null)
 116     {
 117         common_element_start('Service');
 118         if ($uri) {
 119             common_element('URI', null, $uri);
 120         }
 121         common_element('Type', null, $type);
 122         if ($params) {
 123             foreach ($params as $param) {
 124                 common_element('Type', null, $param);
 125             }
 126         }
 127         if ($sigs) {
 128             foreach ($sigs as $sig) {
 129                 common_element('Type', null, $sig);
 130             }
 131         }
 132         if ($localId) {
 133             common_element('LocalID', null, $localId);
 134         }
 135         common_element_end('Service');
 136     }
 137 }