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  * @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') && !defined('LACONICA')) {
  32     exit(1);
  33 }
  34
  35 require_once INSTALLDIR.'/lib/action.php';
  36 require_once INSTALLDIR.'/plugins/OpenID/openid.php';
  37 require_once(INSTALLDIR.'/plugins/OpenID/User_openid_trustroot.php');
  38
  39 /**
  40  * Settings for OpenID
  41  *
  42  * Lets users add, edit and delete OpenIDs from their account
  43  *
  44  * @category Settings
  45  * @package  StatusNet
  46  * @author   Craig Andrews <candrews@integralblue.com>
  47  * @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
  48  * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  49  * @link     http://status.net/
  50  */
  51 class OpenidserverAction extends Action
  52 {
  53     var $oserver;
  54
  55     function prepare($args)
  56     {
  57         parent::prepare($args);
  58         $this->oserver = oid_server();
  59         return true;
  60     }
  61
  62     function handle($args)
  63     {
  64         parent::handle($args);
  65         $request = $this->oserver->decodeRequest();
  66         if (in_array($request->mode, array('checkid_immediate',
  67             'checkid_setup'))) {
  68             $user = common_current_user();
  69             if(!$user){
  70                 if($request->immediate){
  71                     //cannot prompt the user to login in immediate mode, so answer false
  72                     $response = $this->generateDenyResponse($request);
  73                 }else{
  74                     // Go log in, and then come back.
  75                     //
  76                     // Note: 303 redirect rather than 307 to avoid
  77                     // prompting user for form resubmission if we
  78                     // were POSTed here.
  79                     common_set_returnto($_SERVER['REQUEST_URI']);
  80                     common_redirect(common_local_url('login'), 303);
  81                     return;
  82                 }
  83             }else if(common_profile_url($user->nickname) == $request->identity || $request->idSelect()){
  84                 $user_openid_trustroot = User_openid_trustroot::pkeyGet(
  85                                                 array('user_id'=>$user->id, 'trustroot'=>$request->trust_root));
  86                 if(empty($user_openid_trustroot)){
  87                     if($request->immediate){
  88                         //cannot prompt the user to trust this trust root in immediate mode, so answer false
  89                         $response = $this->generateDenyResponse($request);
  90                     }else{
  91                         common_ensure_session();
  92                         $_SESSION['openid_trust_root'] = $request->trust_root;
  93                         $allowResponse = $this->generateAllowResponse($request, $user);
  94                         $this->oserver->encodeResponse($allowResponse); //sign the response
  95                         $denyResponse = $this->generateDenyResponse($request);
  96                         $this->oserver->encodeResponse($denyResponse); //sign the response
  97                         $_SESSION['openid_allow_url'] = $allowResponse->encodeToUrl();
  98                         $_SESSION['openid_deny_url'] = $denyResponse->encodeToUrl();
  99
 100                         // Ask the user to trust this trust root...
 101                         //
 102                         // Note: 303 redirect rather than 307 to avoid
 103                         // prompting user for form resubmission if we
 104                         // were POSTed here.
 105                         common_redirect(common_local_url('openidtrust'), 303);
 106                         return;
 107                     }
 108                 }else{
 109                     //user has previously authorized this trust root
 110                     $response = $this->generateAllowResponse($request, $user);
 111                     //$response = $request->answer(true, null, common_profile_url($user->nickname));
 112                 }
 113             } else if ($request->immediate) {
 114                 $response = $this->generateDenyResponse($request);
 115             } else {
 116                 //invalid
 117                 // TRANS: OpenID plugin client error given trying to add an unauthorised OpenID to a user (403).
 118                 $this->clientError(sprintf(_m('You are not authorized to use the identity %s.'),$request->identity),$code=403);
 119             }
 120         } else {
 121             $response = $this->oserver->handleRequest($request);
 122         }
 123
 124         if($response){
 125             $response = $this->oserver->encodeResponse($response);
 126             if ($response->code != AUTH_OPENID_HTTP_OK) {
 127                 header(sprintf("HTTP/1.1 %d ", $response->code),
 128                        true, $response->code);
 129             }
 130
 131             if($response->headers){
 132                 foreach ($response->headers as $k => $v) {
 133                     header("$k: $v");
 134                 }
 135             }
 136             $this->raw($response->body);
 137         }else{
 138             // TRANS: OpenID plugin client error given when not getting a response for a given OpenID provider (500).
 139             $this->clientError(_m('Just an OpenID provider. Nothing to see here, move along...'),$code=500);
 140         }
 141     }
 142
 143     function generateAllowResponse($request, $user){
 144         $response = $request->answer(true, null, common_profile_url($user->nickname));
 145
 146         $profile = $user->getProfile();
 147         $sreg_data = array(
 148             'fullname' => $profile->fullname,
 149             'nickname' => $user->nickname,
 150             'email' => $user->email,
 151             'language' => $user->language,
 152             'timezone' => $user->timezone);
 153         $sreg_request = Auth_OpenID_SRegRequest::fromOpenIDRequest($request);
 154         $sreg_response = Auth_OpenID_SRegResponse::extractResponse(
 155                               $sreg_request, $sreg_data);
 156         $sreg_response->toMessage($response->fields);
 157         return $response;
 158     }
 159
 160     function generateDenyResponse($request){
 161         $response = $request->answer(false);
 162         return $response;
 163     }
 164 }