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