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path: root/plugins/CasAuthentication/caslogin.php
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<?php
/*
 * StatusNet - the distributed open-source microblogging tool
 * Copyright (C) 2008, 2009, StatusNet, Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }

class CasloginAction extends Action
{
    function handle($args)
    {
        parent::handle($args);
        if (common_is_real_login()) {
            $this->clientError(_m('Already logged in.'));
        } else {
            global $casSettings;
            phpCAS::client(CAS_VERSION_2_0,$casSettings['server'],$casSettings['port'],$casSettings['path']);
            phpCAS::setNoCasServerValidation();
            phpCAS::handleLogoutRequests();
            phpCAS::forceAuthentication();
            global $casTempPassword;
            $casTempPassword = common_good_rand(16);
            $user = common_check_user(phpCAS::getUser(), $casTempPassword);
            if (!$user) {
                $this->serverError(_m('Incorrect username or password.'));
                return;
            }

            // success!
            if (!common_set_user($user)) {
                $this->serverError(_m('Error setting user. You are probably not authorized.'));
                return;
            }

            common_real_login(true);

            $url = common_get_returnto();

            if ($url) {
                // We don't have to return to it again
                common_set_returnto(null);
            } else {
                if(common_config('site', 'private') && $casSettings['takeOverLogin']) {
                    //SSO users expect to just go to the URL they entered
                    //if we don't have a returnto set, the user entered the
                    //main StatusNet url, so send them there.
                    $url = common_local_url('public');
                } else {
                    //With normal logins (regular form-based username/password),
                    //the user would expect to go to their home after logging in.
                    $url = common_local_url('public',
                                        array('nickname' =>
                                              $user->nickname));
                }
            }

            common_redirect($url, 303);
        }
    }
}