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<?php
/**
 * Complete the OpenID authentication
 *
 * @copyright    http://www.impresscms.org/ The ImpressCMS Project
 * @license        http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU General Public License (GPL)
 * @package        Auth
 * @subpackage  Openid
 * @since        1.1
 * @author        malanciault <marcan@impresscms.org>
 * @version        SVN: $Id$
 */
/**
 * Set this to TRUE to troubleshoot OpenID login
 */
$openid_debug = FALSE;

define('ICMS_INCLUDE_OPENID', TRUE);
$xoopsOption['pagetype'] = 'user';
/** Including mainfile.php is required */
include_once 'mainfile.php';

$redirect_url = $_SESSION['frompage'];
$member_handler = icms::handler('icms_member');

/** Including the language files for the authentication pages */
icms_loadLanguageFile('core', 'auth');

$xoopsAuth = & icms_auth_Factory::getAuthConnection(NULL);
$user = $xoopsAuth->authenticate($openid_debug);

if ($xoopsAuth->errorOccured()) {
    redirect_header($redirect_url, 3, $xoopsAuth->getHtmlErrors());
}

switch ($xoopsAuth->step) {
    case OPENID_STEP_NO_USER_FOUND :
        $xoopsOption['template_main'] = 'system_openid.html';
        /** Including header.php to start page rendering */
        include_once ICMS_ROOT_PATH . "/header.php" ;

        $sreg = $_SESSION['openid_sreg'];

        $xoopsTpl->assign('displayId', $xoopsAuth->displayid);
        $xoopsTpl->assign('cid', $xoopsAuth->openid);
        $xoopsTpl->assign('uname', isset ($sreg['nickname']) ? $sreg['nickname'] : '');
        $xoopsTpl->assign('email', isset ($sreg['email']) ? $sreg['email'] : '');
        /** Including footer.php to complete page rendering */
        include_once ICMS_ROOT_PATH . '/footer.php';
        break;

    case OPENID_STEP_REGISTER :

        /**
         * setting the step to the previous one for if there is an error, user will be redirected
         * a step behind
         */
        $_SESSION['openid_step'] = OPENID_STEP_NO_USER_FOUND;

        $sreg = $_SESSION['openid_sreg'];
        /** Including header.php to start page rendering */
        include_once ICMS_ROOT_PATH . '/header.php' ;

        /**
         * @todo this is only temporary and it needs to be included in the template as a javascript check
         */
        if (empty ($_POST['email']) || empty ($_POST['uname'])) {
            redirect_header(ICMS_URL . '/finish_auth.php', 3, 'email and username are mandatory');
        }

        $email = addslashes($_POST['email']);

        $uname = addslashes($_POST['uname']);
        /**
         * @todo use the related UserConfigOption
         */
        if (strlen($uname) < 3) { // Username too short.
            redirect_header(ICMS_URL . '/finish_auth.php', 3, _US_OPENID_NEW_USER_UNAME_TOO_SHORT);
        }

        // checking if this uname is available
        $criteria = new icms_db_criteria_Compo(new icms_db_criteria_Item('uname', $uname));
        $user_handler = icms::handler('icms_member_user');
        $users = & $user_handler->getObjects($criteria, FALSE);

        if (is_array($users) && count($users) > 0) {
            redirect_header(ICMS_URL . '/finish_auth.php', 3, _US_OPENID_NEW_USER_UNAME_EXISTS);
        }

        $name = addslashes(icms_core_DataFilter::stripSlashesGPC(utf8_decode($sreg['fullname'])));
        //$tz = quote_smart($tzoffset[$sreg['timezone']]);
        $country = addslashes(icms_core_DataFilter::stripSlashesGPC(utf8_decode($sreg['country'])));

        /**
         * @todo use proper core class, manage activation_type and send notifications
         */

        $newUser = $member_handler->createUser();
        $newUser->setVar('uname', $uname);
        $newUser->setVar('email', $email);
        $newUser->setVar('name', $name);
        $newUser->setVar('pass', '*');
        $newUser->setVar('user_regdate', time());
        $newUser->setVar('level', 1);
        $newUser->setVar('country', $country);
        $newUser->setVar('timesone_offset', $icmsConfig['default_TZ']);
        $newUser->setVar('openid', $xoopsAuth->openid);
        if (!$member_handler->insertUser($newUser)) {
            redirect_header(ICMS_URL . '/finish_auth.php', 3, _US_OPENID_NEW_USER_CANNOT_INSERT . ' ' . $newUser->getHtmlErrors());
        }

        // Now, add the user to the group.
        $newid = $newUser->getVar('uid');
        $mship_handler = icms::handler('icms_member_group_membership');
        $mship = & $mship_handler->create();
        $mship->setVar('groupid', XOOPS_GROUP_USERS);
        $mship->setVar('uid', $newid);
        if (!$mship_handler->insert($mship)) {
            redirect_header($redirect_url, 3, _US_OPENID_NEW_USER_CANNOT_INSERT_INGROUP);
        }

        // Login with this user.

        /**
         * @todo use proper login process (include/checklogin.php)
         */
        if ($newUser->getVar('level') == 0) {
            redirect_header($redirect_url, 3, _US_OPENID_NEW_USER_AUTH_NOT_ACTIVATED);
        }

        $_SESSION['xoopsUserId'] = $newUser->getVar('uid');
        $_SESSION['xoopsUserGroups'] = $newUser->getGroups();
        $user_theme = $newUser->getVar('theme');

        if (in_array($user_theme, $icmsConfig['theme_set_allowed'])) {
            $_SESSION['xoopsUserTheme'] = $user_theme;
        }

        unset ($_SESSION['openid_response']);
        unset ($_SESSION['openid_sreg']);
        unset ($_SESSION['frompage']);

        redirect_header($redirect_url, 3, sprintf(_US_OPENID_NEW_USER_CREATED, $newUser->getVar('uname')));

        break;

    case OPENID_STEP_USER_FOUND :
        /** Including the login authentication page */
        include_once 'include/checklogin.php';
        exit;
        break;

    case OPENID_STEP_LINK :
        // Linking an existing user with this openid
        /** Including header.php to start page rendering */
        include_once ICMS_ROOT_PATH . '/header.php' ;

        $uname4sql = addslashes(icms_core_DataFilter::stripSlashesGPC($_POST['uname']));
        $pass4sql = addslashes(icms_core_DataFilter::stripSlashesGPC($_POST['pass']));

        $thisUser = $member_handler->loginUser($uname4sql, $pass4sql);

        if (!$thisUser) {
            redirect_header($redirect_url, 3, _US_OPENID_LINKED_AUTH_FAILED);
        }

        if ($thisUser->getVar('level') == 0) {
            redirect_header($redirect_url, 3, _US_OPENID_LINKED_AUTH_NOT_ACTIVATED);
        }

        // This means the authentication succeeded.
        $displayId = $xoopsAuth->response->getDisplayIdentifier();

        $thisUser->setVar('last_login', time());
        $thisUser->setVar('openid', $xoopsAuth->openid);

        if (!$member_handler->insertUser($thisUser)) {
            redirect_header($redirect_url, 3, _US_OPENID_LINKED_AUTH_CANNOT_SAVE);
        }

        $_SESSION['xoopsUserId'] = $thisUser->getVar('uid');
        $_SESSION['xoopsUserGroups'] = $thisUser->getGroups();
        $user_theme = $thisUser->getVar('theme');

        if (in_array($user_theme, $icmsConfig['theme_set_allowed'])) {
            $_SESSION['xoopsUserTheme'] = $user_theme;
        }

        unset ($_SESSION['openid_response']);
        unset ($_SESSION['openid_sreg']);
        unset ($_SESSION['frompage']);

        redirect_header($redirect_url, 3, sprintf(_US_OPENID_LINKED_DONE, $thisUser->getVar('uname')));
        break;

}
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