-}
-else {
- unset($_SESSION['authenticated']);
- unset($_SESSION['uid']);
- unset($_SESSION['visitor_id']);
- unset($_SESSION['is_visitor']);
- unset($_SESSION['administrator']);
- unset($_SESSION['cid']);
- $encrypted = hash('whirlpool',trim($_POST['password']));
-
- if((x($_POST,'auth-params')) && $_POST['auth-params'] == 'login') {
- $r = q("SELECT * FROM `user`
- WHERE `email` = '%s' AND `password` = '%s' AND `blocked` = 0 AND `verified` = 1 LIMIT 1",
- dbesc(trim($_POST['login-name'])),
- dbesc($encrypted));
- if(($r === false) || (! count($r))) {
- $_SESSION['sysmsg'] = t('Login failed.') . EOL ;
- goaway($a->get_baseurl());
+} else {
+
+ if(isset($_SESSION)) {
+ nuke_session();
+ }
+
+ if((x($_POST,'password')) && strlen($_POST['password']))
+ $encrypted = hash('whirlpool',trim($_POST['password']));
+ else {
+ if((x($_POST,'openid_url')) && strlen($_POST['openid_url']) ||
+ (x($_POST,'username')) && strlen($_POST['username'])) {
+
+ $noid = get_config('system','no_openid');
+
+ $openid_url = trim((strlen($_POST['openid_url'])?$_POST['openid_url']:$_POST['username']) );
+
+ // validate_url alters the calling parameter
+
+ $temp_string = $openid_url;
+
+ // if it's an email address or doesn't resolve to a URL, fail.
+
+ if(($noid) || (strpos($temp_string,'@')) || (! validate_url($temp_string))) {
+ $a = get_app();
+ notice( t('Login failed.') . EOL);
+ goaway(z_root());
+ // NOTREACHED
+ }
+
+ // Otherwise it's probably an openid.
+
+ try {
+ require_once('library/openid.php');
+ $openid = new LightOpenID;
+ $openid->identity = $openid_url;
+ $_SESSION['openid'] = $openid_url;
+ $a = get_app();
+ $openid->returnUrl = $a->get_baseurl(true) . '/openid';
+ goaway($openid->authUrl());
+ } catch (Exception $e) {
+ notice( t('We encountered a problem while logging in with the OpenID you provided. Please check the correct spelling of the ID.').'<br /><br >'. t('The error message was:').' '.$e->getMessage());
+ }
+ // NOTREACHED
+ }
+ }
+
+ if((x($_POST,'auth-params')) && $_POST['auth-params'] === 'login') {
+
+ $record = null;
+
+ $addon_auth = array(
+ 'username' => trim($_POST['username']),
+ 'password' => trim($_POST['password']),
+ 'authenticated' => 0,
+ 'user_record' => null
+ );
+
+ /**
+ *
+ * A plugin indicates successful login by setting 'authenticated' to non-zero value and returning a user record
+ * Plugins should never set 'authenticated' except to indicate success - as hooks may be chained
+ * and later plugins should not interfere with an earlier one that succeeded.
+ *
+ */
+
+ call_hooks('authenticate', $addon_auth);
+
+ if(($addon_auth['authenticated']) && (count($addon_auth['user_record']))) {
+ $record = $addon_auth['user_record'];
+ }
+ else {
+
+ // process normal login request
+
+ $r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey`
+ FROM `user` WHERE ( `email` = '%s' OR `nickname` = '%s' )
+ AND `password` = '%s' AND `blocked` = 0 AND `account_expired` = 0 AND `account_removed` = 0 AND `verified` = 1 LIMIT 1",
+ dbesc(trim($_POST['username'])),
+ dbesc(trim($_POST['username'])),
+ dbesc($encrypted)
+ );
+ if(count($r))
+ $record = $r[0];
+ }
+
+ if((! $record) || (! count($record))) {
+ logger('authenticate: failed login attempt: ' . notags(trim($_POST['username'])) . ' from IP ' . $_SERVER['REMOTE_ADDR']);
+ notice( t('Login failed.') . EOL );
+ goaway(z_root());