actions/openidlogin.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 class OpenidloginAction extends Action {
  23
  24         function handle($args) {
  25                 parent::handle($args);
  26                 if (common_logged_in()) {
  27                         common_user_error(_t('Already logged in.'));
  28                 } else if ($_SERVER['REQUEST_METHOD'] == 'POST') {
  29                         $this->start_openid_login();
  30                 } else {
  31                         $this->show_form();
  32                 }
  33         }
  34
  35         function show_form($error=NULL) {
  36                 common_show_header(_t('OpenID Login'));
  37                 if ($error) {
  38                         common_element('div', array('class' => 'error'), $error);
  39                 } else {
  40                         common_element('div', 'instructions',
  41                                                    _t('Login with an OpenID account.'));
  42                 }
  43                 common_element_start('form', array('method' => 'POST',
  44                                                                                    'id' => 'openidlogin',
  45                                                                                    'action' => common_local_url('openidlogin')));
  46                 common_input('openid_url', _t('OpenID URL'));
  47                 common_submit('submit', _t('Login'));
  48                 common_element_end('form');
  49                 common_show_footer();
  50         }
  51
  52         function check_login() {
  53                 # XXX: form token in $_SESSION to prevent XSS
  54                 # XXX: login throttle
  55                 $openid_url = $this->trimmed('openid_url');
  56         }
  57 }