plugins/OpenID/openidserver.php

   1 <?php
   2 /**
   3  * StatusNet, the distributed open-source microblogging tool
   4  *
   5  * Settings for OpenID
   6  *
   7  * PHP version 5
   8  *
   9  * LICENCE: This program is free software: you can redistribute it and/or modify
  10  * it under the terms of the GNU Affero General Public License as published by
  11  * the Free Software Foundation, either version 3 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU Affero General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Affero General Public License
  20  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21  *
  22  * @category  Settings
  23  * @package   StatusNet
  24  * @author   Craig Andrews <candrews@integralblue.com>
  25  * @copyright 2008-2009 StatusNet, Inc.
  26  * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  27  * @link      http://status.net/
  28  */
  29
  30 if (!defined('STATUSNET') && !defined('LACONICA')) {
  31     exit(1);
  32 }
  33
  34 require_once INSTALLDIR.'/lib/action.php';
  35 require_once INSTALLDIR.'/plugins/OpenID/openid.php';
  36 require_once(INSTALLDIR.'/plugins/OpenID/User_openid_trustroot.php');
  37
  38 /**
  39  * Settings for OpenID
  40  *
  41  * Lets users add, edit and delete OpenIDs from their account
  42  *
  43  * @category Settings
  44  * @package  StatusNet
  45  * @author   Craig Andrews <candrews@integralblue.com>
  46  * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  47  * @link     http://status.net/
  48  */
  49 class OpenidserverAction extends Action
  50 {
  51     var $oserver;
  52
  53     function prepare($args)
  54     {
  55         parent::prepare($args);
  56         $this->oserver = oid_server();
  57         return true;
  58     }
  59
  60     function handle($args)
  61     {
  62         parent::handle($args);
  63         $request = $this->oserver->decodeRequest();
  64         if (in_array($request->mode, array('checkid_immediate',
  65             'checkid_setup'))) {
  66             $user = common_current_user();
  67             if(!$user){
  68                 if($request->immediate){
  69                     //cannot prompt the user to login in immediate mode, so answer false
  70                     $response = $this->generateDenyResponse($request);
  71                 }else{
  72                     /* Go log in, and then come back. */
  73                     common_set_returnto($_SERVER['REQUEST_URI']);
  74                     common_redirect(common_local_url('login'));
  75                     return;
  76                 }
  77             }else if(common_profile_url($user->nickname) == $request->identity || $request->idSelect()){
  78                 $user_openid_trustroot = User_openid_trustroot::pkeyGet(
  79                                                 array('user_id'=>$user->id, 'trustroot'=>$request->trust_root));
  80                 if(empty($user_openid_trustroot)){
  81                     if($request->immediate){
  82                         //cannot prompt the user to trust this trust root in immediate mode, so answer false
  83                         $response = $this->generateDenyResponse($request);
  84                     }else{
  85                         common_ensure_session();
  86                         $_SESSION['openid_trust_root'] = $request->trust_root;
  87                         $allowResponse = $this->generateAllowResponse($request, $user);
  88                         $this->oserver->encodeResponse($allowResponse); //sign the response
  89                         $denyResponse = $this->generateDenyResponse($request);
  90                         $this->oserver->encodeResponse($denyResponse); //sign the response
  91                         $_SESSION['openid_allow_url'] = $allowResponse->encodeToUrl();
  92                         $_SESSION['openid_deny_url'] = $denyResponse->encodeToUrl();
  93                         //ask the user to trust this trust root
  94                         common_redirect(common_local_url('openidtrust'));
  95                         return;
  96                     }
  97                 }else{
  98                     //user has previously authorized this trust root
  99                     $response = $this->generateAllowResponse($request, $user);
 100                     //$response = $request->answer(true, null, common_profile_url($user->nickname));
 101                 }
 102             } else if ($request->immediate) {
 103                 $response = $this->generateDenyResponse($request);
 104             } else {
 105                 //invalid
 106                 $this->clientError(sprintf(_m('You are not authorized to use the identity %s'),$request->identity),$code=403);
 107             }
 108         } else {
 109             $response = $this->oserver->handleRequest($request);
 110         }
 111
 112         if($response){
 113             $response = $this->oserver->encodeResponse($response);
 114             if ($response->code != AUTH_OPENID_HTTP_OK) {
 115                 header(sprintf("HTTP/1.1 %d ", $response->code),
 116                        true, $response->code);
 117             }
 118
 119             if($response->headers){
 120                 foreach ($response->headers as $k => $v) {
 121                     header("$k: $v");
 122                 }
 123             }
 124             $this->raw($response->body);
 125         }else{
 126             $this->clientError(_m('Just an OpenID provider. Nothing to see here, move along...'),$code=500);
 127         }
 128     }
 129
 130     function generateAllowResponse($request, $user){
 131         $response = $request->answer(true, null, common_profile_url($user->nickname));
 132
 133         $profile = $user->getProfile();
 134         $sreg_data = array(
 135             'fullname' => $profile->fullname,
 136             'nickname' => $user->nickname,
 137             'email' => $user->email,
 138             'language' => $user->language,
 139             'timezone' => $user->timezone);
 140         $sreg_request = Auth_OpenID_SRegRequest::fromOpenIDRequest($request);
 141         $sreg_response = Auth_OpenID_SRegResponse::extractResponse(
 142                               $sreg_request, $sreg_data);
 143         $sreg_response->toMessage($response->fields);
 144         return $response;
 145     }
 146
 147     function generateDenyResponse($request){
 148         $response = $request->answer(false);
 149         return $response;
 150     }
 151 }