plugins/OpenID/actions/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  * @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
  27  * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  28  * @link      http://status.net/
  29  */
  30
  31 if (!defined('STATUSNET')) {
  32     exit(1);
  33 }
  34
  35 require_once INSTALLDIR.'/plugins/OpenID/openid.php';
  36
  37 /**
  38  * Settings for OpenID
  39  *
  40  * Lets users add, edit and delete OpenIDs from their account
  41  *
  42  * @category Settings
  43  * @package  StatusNet
  44  * @author   Craig Andrews <candrews@integralblue.com>
  45  * @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
  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             if (!$this->scoped instanceof Profile) {
  67                 if($request->immediate){
  68                     //cannot prompt the user to login in immediate mode, so answer false
  69                     $response = $this->generateDenyResponse($request);
  70                 }else{
  71                     // Go log in, and then come back.
  72                     //
  73                     // Note: 303 redirect rather than 307 to avoid
  74                     // prompting user for form resubmission if we
  75                     // were POSTed here.
  76                     common_set_returnto($_SERVER['REQUEST_URI']);
  77                     common_redirect(common_local_url('login'), 303);
  78                 }
  79             } elseif (in_array($request->identity, $this->scoped->getAliases()) || $request->idSelect()) {
  80                 $user_openid_trustroot = User_openid_trustroot::pkeyGet(
  81                                                 array('user_id'=>$this->scoped->getID(), 'trustroot'=>$request->trust_root));
  82                 if(empty($user_openid_trustroot)){
  83                     if($request->immediate){
  84                         //cannot prompt the user to trust this trust root in immediate mode, so answer false
  85                         $response = $this->generateDenyResponse($request);
  86                     }else{
  87                         common_ensure_session();
  88                         $_SESSION['openid_trust_root'] = $request->trust_root;
  89                         $allowResponse = $this->generateAllowResponse($request, $this->scoped);
  90                         $this->oserver->encodeResponse($allowResponse); //sign the response
  91                         $denyResponse = $this->generateDenyResponse($request);
  92                         $this->oserver->encodeResponse($denyResponse); //sign the response
  93                         $_SESSION['openid_allow_url'] = $allowResponse->encodeToUrl();
  94                         $_SESSION['openid_deny_url'] = $denyResponse->encodeToUrl();
  95
  96                         // Ask the user to trust this trust root...
  97                         //
  98                         // Note: 303 redirect rather than 307 to avoid
  99                         // prompting user for form resubmission if we
 100                         // were POSTed here.
 101                         common_redirect(common_local_url('openidtrust'), 303);
 102                     }
 103                 } else {
 104                     //user has previously authorized this trust root
 105                     $response = $this->generateAllowResponse($request, $this->scoped);
 106                 }
 107             } elseif ($request->immediate) {
 108                 $response = $this->generateDenyResponse($request);
 109             } else {
 110                 //invalid
 111                 // TRANS: OpenID plugin client error given trying to add an unauthorised OpenID to a user (403).
 112                 // TRANS: %s is a request identity.
 113                 $this->clientError(sprintf(_m('You are not authorized to use the identity %s.'),$request->identity),$code=403);
 114             }
 115         } else {
 116             $response = $this->oserver->handleRequest($request);
 117         }
 118
 119         if($response){
 120             $response = $this->oserver->encodeResponse($response);
 121             if ($response->code != AUTH_OPENID_HTTP_OK) {
 122                 header(sprintf("HTTP/1.1 %d ", $response->code),
 123                        true, $response->code);
 124             }
 125
 126             if($response->headers){
 127                 foreach ($response->headers as $k => $v) {
 128                     header("$k: $v");
 129                 }
 130             }
 131             $this->raw($response->body);
 132         }else{
 133             // TRANS: OpenID plugin client error given when not getting a response for a given OpenID provider (500).
 134             $this->clientError(_m('Just an OpenID provider. Nothing to see here, move along...'),$code=500);
 135         }
 136     }
 137
 138     function generateAllowResponse($request, Profile $profile){
 139         $response = $request->answer(true, null, $profile->getUrl());
 140         $user = $profile->getUser();
 141
 142         $sreg_data = array(
 143             'fullname' => $profile->getFullname(),
 144             'nickname' => $profile->getNickname(),
 145             'email' => $user->email,    // FIXME: Should we make the email optional?
 146             'language' => $user->language,
 147             'timezone' => $user->timezone);
 148         $sreg_request = Auth_OpenID_SRegRequest::fromOpenIDRequest($request);
 149         $sreg_response = Auth_OpenID_SRegResponse::extractResponse(
 150                               $sreg_request, $sreg_data);
 151         $sreg_response->toMessage($response->fields);
 152         return $response;
 153     }
 154
 155     function generateDenyResponse($request){
 156         $response = $request->answer(false);
 157         return $response;
 158     }
 159 }