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