<?php use Friendica\App; use Friendica\Core\Config; require_once('include/security.php'); require_once('include/datetime.php'); // When the "Friendica" cookie is set, take the value to authenticate and renew the cookie. if (isset($_COOKIE["Friendica"])) { $data = json_decode($_COOKIE["Friendica"]); if (isset($data->uid)) { $r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey` FROM `user` WHERE `uid` = %d AND NOT `blocked` AND NOT `account_expired` AND NOT `account_removed` AND `verified` LIMIT 1", intval($data->uid) ); if ($r) { if ($data->hash != cookie_hash($r[0])) { logger("Hash for user ".$data->uid." doesn't fit."); nuke_session(); goaway(z_root()); } // Renew the cookie // Expires after 7 days by default, // can be set via system.auth_cookie_lifetime $authcookiedays = Config::get('system', 'auth_cookie_lifetime', 7); new_cookie($authcookiedays*24*60*60, $r[0]); // Do the authentification if not done by now if (!isset($_SESSION) || !isset($_SESSION['authenticated'])) { authenticate_success($r[0]); if (get_config('system','paranoia')) $_SESSION['addr'] = $data->ip; } } } } // login/logout if (isset($_SESSION) && x($_SESSION,'authenticated') && (!x($_POST,'auth-params') || ($_POST['auth-params'] !== 'login'))) { if ((x($_POST,'auth-params') && ($_POST['auth-params'] === 'logout')) || ($a->module === 'logout')) { // process logout request call_hooks("logging_out"); nuke_session(); info(t('Logged out.').EOL); goaway(z_root()); } if (x($_SESSION,'visitor_id') && !x($_SESSION,'uid')) { $r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1", intval($_SESSION['visitor_id']) ); if (dbm::is_result($r)) { $a->contact = $r[0]; } } if (x($_SESSION,'uid')) { // already logged in user returning $check = get_config('system','paranoia'); // extra paranoia - if the IP changed, log them out if ($check && ($_SESSION['addr'] != $_SERVER['REMOTE_ADDR'])) { logger('Session address changed. Paranoid setting in effect, blocking session. '. $_SESSION['addr'].' != '.$_SERVER['REMOTE_ADDR']); nuke_session(); goaway(z_root()); } $r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey` FROM `user` WHERE `uid` = %d AND NOT `blocked` AND NOT `account_expired` AND NOT `account_removed` AND `verified` LIMIT 1", intval($_SESSION['uid']) ); if (!dbm::is_result($r)) { nuke_session(); goaway(z_root()); } // Make sure to refresh the last login time for the user if the user // stays logged in for a long time, e.g. with "Remember Me" $login_refresh = false; if (!x($_SESSION['last_login_date'])) { $_SESSION['last_login_date'] = datetime_convert('UTC','UTC'); } if (strcmp(datetime_convert('UTC','UTC','now - 12 hours'), $_SESSION['last_login_date']) > 0) { $_SESSION['last_login_date'] = datetime_convert('UTC','UTC'); $login_refresh = true; } authenticate_success($r[0], false, false, $login_refresh); } } else { session_unset(); if (x($_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; $_SESSION['remember'] = $_POST['remember']; $openid->returnUrl = App::get_baseurl(true).'/openid'; goaway($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 $r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey` FROM `user` WHERE (`email` = '%s' OR `nickname` = '%s') AND `password` = '%s' AND NOT `blocked` AND NOT `account_expired` AND NOT `account_removed` AND `verified` LIMIT 1", dbesc(trim($_POST['username'])), dbesc(trim($_POST['username'])), dbesc($encrypted) ); if (dbm::is_result($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()); } if (! $_POST['remember']) { new_cookie(0); // 0 means delete on browser exit } // if we haven't failed up this point, log them in. $_SESSION['remember'] = $_POST['remember']; $_SESSION['last_login_date'] = datetime_convert('UTC','UTC'); authenticate_success($record, true, true); } } /** * @brief Kills the "Friendica" cookie and all session data */ function nuke_session() { new_cookie(-3600); // make sure cookie is deleted on browser close, as a security measure session_unset(); session_destroy(); }