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