X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=include%2Fauth.php;h=d1917b8b30903138f18a8cd17203588c8c8f1361;hb=05a13a99b2c89db5d01e205301888a8a5c90108a;hp=f4f75c607bcbcb0e4faa692ad3f5296c9251ddd7;hpb=36e1afa6ae35890a26910951dec6dda98dcdee8f;p=friendica.git diff --git a/include/auth.php b/include/auth.php index f4f75c607b..d1917b8b30 100644 --- a/include/auth.php +++ b/include/auth.php @@ -1,117 +1,242 @@ 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 + new_cookie(604800, $r[0]); + + // Do the authentification if not done by now + if (!isset($_SESSION) OR !isset($_SESSION['authenticated'])) { + authenticate_success($r[0]); + + if (get_config('system','paranoia')) + $_SESSION['addr'] = $data->ip; + } + } + } +} + -// login/logout +// login/logout -if((x($_SESSION,'authenticated')) && (! ($_POST['auth-params'] === 'login'))) { +if (isset($_SESSION) && x($_SESSION,'authenticated') && (!x($_POST,'auth-params') || ($_POST['auth-params'] !== 'login'))) { + + if ((x($_POST,'auth-params') && ($_POST['auth-params'] === 'logout')) || ($a->module === 'logout')) { - if($_POST['auth-params'] === 'logout' || $a->module === 'logout') { - // process logout request + call_hooks("logging_out"); + nuke_session(); + info(t('Logged out.').EOL); + goaway(z_root()); + } - unset($_SESSION['authenticated']); - unset($_SESSION['uid']); - unset($_SESSION['visitor_id']); - unset($_SESSION['administrator']); - unset($_SESSION['cid']); - unset($_SESSION['theme']); - notice( t('Logged out.') . EOL); - goaway($a->get_baseurl()); + if (x($_SESSION,'visitor_id') && !x($_SESSION,'uid')) { + $r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1", + intval($_SESSION['visitor_id']) + ); + if (count($r)) { + $a->contact = $r[0]; + } } - if(x($_SESSION,'uid')) { + if (x($_SESSION,'uid')) { // already logged in user returning - $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", + $check = get_config('system','paranoia'); + // extra paranoia - if the IP changed, log them out + if ($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(! count($r)) { - goaway($a->get_baseurl()); + if (!count($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) { - // initialise user environment + $_SESSION['last_login_date'] = datetime_convert('UTC','UTC'); + $login_refresh = true; + } + authenticate_success($r[0], false, false, $login_refresh); + } +} else { - $a->user = $r[0]; - $_SESSION['theme'] = $a->user['theme']; - if(strlen($a->user['timezone'])) - date_default_timezone_set($a->user['timezone']); + session_unset(); - $_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $a->user['nickname']; + if (x($_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'])) { - $r = q("SELECT * FROM `contact` WHERE `uid` = %s AND `self` = 1 LIMIT 1", - intval($_SESSION['uid'])); - if(count($r)) { - $a->contact = $r[0]; - $a->cid = $r[0]['id']; - $_SESSION['cid'] = $a->cid; + $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.').'

'.t('The error message was:').' '.$e->getMessage()); + } + // NOTREACHED } } -} -else { - - unset($_SESSION['authenticated']); - unset($_SESSION['uid']); - unset($_SESSION['visitor_id']); - unset($_SESSION['administrator']); - unset($_SESSION['cid']); - unset($_SESSION['theme']); - unset($_SESSION['my_url']); - - $encrypted = hash('whirlpool',trim($_POST['password'])); - - if((x($_POST,'auth-params')) && $_POST['auth-params'] === 'login') { - - // process login request - - $r = q("SELECT * FROM `user` - WHERE ( `email` = '%s' OR `nickname` = '%s' ) AND `password` = '%s' AND `blocked` = 0 AND `verified` = 1 LIMIT 1", - dbesc(trim($_POST['login-name'])), - dbesc(trim($_POST['login-name'])), - dbesc($encrypted)); - if(($r === false) || (! count($r))) { - notice( t('Login failed.') . EOL ); - goaway($a->get_baseurl()); - } - $_SESSION['uid'] = $r[0]['uid']; - $_SESSION['theme'] = $r[0]['theme']; - $_SESSION['authenticated'] = 1; - $_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $r[0]['nickname']; - - notice( t("Welcome back ") . $r[0]['username'] . EOL); - $a->user = $r[0]; - if(strlen($a->user['timezone'])) - date_default_timezone_set($a->user['timezone']); - - $r = q("SELECT * FROM `contact` WHERE `uid` = %s AND `self` = 1 LIMIT 1", - intval($_SESSION['uid'])); - if(count($r)) { - $a->cid = $r[0]['id']; - $_SESSION['cid'] = $a->cid; + + if (x($_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 (count($r)) + $record = $r[0]; } - if(($a->module !== 'home') && isset($_SESSION['return_url'])) - goaway($a->get_baseurl() . '/' . $_SESSION['return_url']); + + if (!$record || !count($record)) { + logger('authenticate: failed login attempt: '.notags(trim($_POST['username'])).' from IP '.$_SERVER['REMOTE_ADDR']); + notice(t('Login failed.').EOL); + goaway(z_root()); + } + + // If the user specified to remember the authentication, then set a cookie + // that expires after one week (the default is when the browser is closed). + // The cookie will be renewed automatically. + // The week ensures that sessions will expire after some inactivity. + if ($_POST['remember']) + new_cookie(604800, $r[0]); + else + new_cookie(0); // 0 means delete on browser exit + + // if we haven't failed up this point, log them in. + + $_SESSION['last_login_date'] = datetime_convert('UTC','UTC'); + authenticate_success($record, true, true); } } -// Returns an array of group id's this contact is a member of. -// This array will only contain group id's related to the uid of this -// DFRN contact. They are *not* neccessarily unique across the entire site. - - -if(! function_exists('init_groups_visitor')) { -function init_groups_visitor($contact_id) { - $groups = array(); - $r = q("SELECT `gid` FROM `group_member` - WHERE `contact-id` = %d ", - intval($contact_id) - ); - if(count($r)) { - foreach($r as $rr) - $groups[] = $rr['gid']; - } - return $groups; -}} +/** + * @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(); +} + +/** + * @brief Calculate the hash that is needed for the "Friendica" cookie + * + * @param array $user Record from "user" table + * + * @return string Hashed data + */ +function cookie_hash($user) { + return(hash("sha256", get_config("system", "site_prvkey"). + $user["uprvkey"]. + $user["password"])); +} +/** + * @brief Set the "Friendica" cookie + * + * @param int $time + * @param array $user Record from "user" table + */ +function new_cookie($time, $user = array()) { + + if ($time != 0) + $time = $time + time(); + + if ($user) + $value = json_encode(array("uid" => $user["uid"], + "hash" => cookie_hash($user), + "ip" => $_SERVER['REMOTE_ADDR'])); + else + $value = ""; + + setcookie("Friendica", $value, $time, "/", "", + (get_config('system', 'ssl_policy') == SSL_POLICY_FULL), true); + +}