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                     //
  74                     // Note: 303 redirect rather than 307 to avoid
  75                     // prompting user for form resubmission if we
  76                     // were POSTed here.
  77                     common_set_returnto($_SERVER['REQUEST_URI']);
  78                     common_redirect(common_local_url('login'), 303);
  79                     return;
  80                 }
  81             }else if(common_profile_url($user->nickname) == $request->identity || $request->idSelect()){
  82                 $user_openid_trustroot = User_openid_trustroot::pkeyGet(
  83                                                 array('user_id'=>$user->id, 'trustroot'=>$request->trust_root));
  84                 if(empty($user_openid_trustroot)){
  85                     if($request->immediate){
  86                         //cannot prompt the user to trust this trust root in immediate mode, so answer false
  87                         $response = $this->generateDenyResponse($request);
  88                     }else{
  89                         common_ensure_session();
  90                         $_SESSION['openid_trust_root'] = $request->trust_root;
  91                         $allowResponse = $this->generateAllowResponse($request, $user);
  92                         $this->oserver->encodeResponse($allowResponse); //sign the response
  93                         $denyResponse = $this->generateDenyResponse($request);
  94                         $this->oserver->encodeResponse($denyResponse); //sign the response
  95                         $_SESSION['openid_allow_url'] = $allowResponse->encodeToUrl();
  96                         $_SESSION['openid_deny_url'] = $denyResponse->encodeToUrl();
  97
  98                         // Ask the user to trust this trust root...
  99                         //
 100                         // Note: 303 redirect rather than 307 to avoid
 101                         // prompting user for form resubmission if we
 102                         // were POSTed here.
 103                         common_redirect(common_local_url('openidtrust'), 303);
 104                         return;
 105                     }
 106                 }else{
 107                     //user has previously authorized this trust root
 108                     $response = $this->generateAllowResponse($request, $user);
 109                     //$response = $request->answer(true, null, common_profile_url($user->nickname));
 110                 }
 111             } else if ($request->immediate) {
 112                 $response = $this->generateDenyResponse($request);
 113             } else {
 114                 //invalid
 115                 $this->clientError(sprintf(_m('You are not authorized to use the identity %s.'),$request->identity),$code=403);
 116             }
 117         } else {
 118             $response = $this->oserver->handleRequest($request);
 119         }
 120
 121         if($response){
 122             $response = $this->oserver->encodeResponse($response);
 123             if ($response->code != AUTH_OPENID_HTTP_OK) {
 124                 header(sprintf("HTTP/1.1 %d ", $response->code),
 125                        true, $response->code);
 126             }
 127
 128             if($response->headers){
 129                 foreach ($response->headers as $k => $v) {
 130                     header("$k: $v");
 131                 }
 132             }
 133             $this->raw($response->body);
 134         }else{
 135             $this->clientError(_m('Just an OpenID provider. Nothing to see here, move along...'),$code=500);
 136         }
 137     }
 138
 139     function generateAllowResponse($request, $user){
 140         $response = $request->answer(true, null, common_profile_url($user->nickname));
 141
 142         $profile = $user->getProfile();
 143         $sreg_data = array(
 144             'fullname' => $profile->fullname,
 145             'nickname' => $user->nickname,
 146             'email' => $user->email,
 147             'language' => $user->language,
 148             'timezone' => $user->timezone);
 149         $sreg_request = Auth_OpenID_SRegRequest::fromOpenIDRequest($request);
 150         $sreg_response = Auth_OpenID_SRegResponse::extractResponse(
 151                               $sreg_request, $sreg_data);
 152         $sreg_response->toMessage($response->fields);
 153         return $response;
 154     }
 155
 156     function generateDenyResponse($request){
 157         $response = $request->answer(false);
 158         return $response;
 159     }
 160 }