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<?php
namespace Sessions;
use UserHelper;
require_once "autoload.php";
require_once "errorhandler.php";
require_once "lib/gettext/gettext.inc.php";
$session_expire = min(2147483647 - time() - 1, max(\Config::get(\Config::SESSION_COOKIE_LIFETIME), 86400));
$session_name = \Config::get(\Config::SESSION_NAME);
if (\Config::is_server_https()) {
ini_set("session.cookie_secure", "true");
}
ini_set("session.gc_probability", "75");
ini_set("session.name", $session_name);
ini_set("session.use_only_cookies", "true");
ini_set("session.gc_maxlifetime", $session_expire);
ini_set("session.cookie_lifetime", "0");
// prolong PHP session cookie
if (isset($_COOKIE[$session_name]))
setcookie($session_name,
$_COOKIE[$session_name],
time() + $session_expire,
ini_get("session.cookie_path"),
ini_get("session.cookie_domain"),
ini_get("session.cookie_secure"),
ini_get("session.cookie_httponly"));
function validate_session(): bool {
if (\Config::get(\Config::SINGLE_USER_MODE)) return true;
$pdo = \Db::pdo();
if (!empty($_SESSION["uid"])) {
$user = \ORM::for_table('ttrss_users')->find_one($_SESSION["uid"]);
if ($user) {
if ($user->pwd_hash != $_SESSION["pwd_hash"]) {
$_SESSION["login_error_msg"] = __("Session failed to validate (password changed)");
return false;
}
if ($user->access_level == UserHelper::ACCESS_LEVEL_DISABLED) {
$_SESSION["login_error_msg"] = __("Session failed to validate (account is disabled)");
return false;
}
// default to true because there might not be any hooks and this is our last check
$hook_result = true;
\PluginHost::getInstance()->chain_hooks_callback(\PluginHost::HOOK_VALIDATE_SESSION,
function ($result) use (&$hook_result) {
$hook_result = $result;
if (!$result) {
return true;
}
});
return $hook_result;
} else {
$_SESSION["login_error_msg"] = __("Session failed to validate (user not found)");
return false;
}
}
return true;
}
if (\Config::get_schema_version() >= 0) {
// TODO: look into making these behave closer to what SessionHandlerInterface intends
session_set_save_handler(new class() implements \SessionHandlerInterface {
public function open(string $path, string $name): bool {
return true;
}
public function close(): bool {
return true;
}
/**
* @todo set return type to string|false, and remove ReturnTypeWillChange, when min supported is PHP 8
* @return string|false
*/
#[\ReturnTypeWillChange]
public function read(string $id) {
global $session_expire;
$sth = \Db::pdo()->prepare('SELECT data FROM ttrss_sessions WHERE id=?');
$sth->execute([$id]);
if ($row = $sth->fetch()) {
return base64_decode($row['data']);
}
$expire = time() + $session_expire;
$sth = \Db::pdo()->prepare("INSERT INTO ttrss_sessions (id, data, expire)
VALUES (?, '', ?)");
return $sth->execute([$id, $expire]) ? '' : false;
}
public function write(string $id, string $data): bool {
global $session_expire;
$data = base64_encode($data);
$expire = time() + $session_expire;
$sth = \Db::pdo()->prepare('SELECT id FROM ttrss_sessions WHERE id=?');
$sth->execute([$id]);
if ($sth->fetch()) {
$sth = \Db::pdo()->prepare('UPDATE ttrss_sessions SET data=?, expire=? WHERE id=?');
return $sth->execute([$data, $expire, $id]);
}
$sth = \Db::pdo()->prepare('INSERT INTO ttrss_sessions (id, data, expire) VALUES (?, ?, ?)');
return $sth->execute([$id, $data, $expire]);
}
public function destroy(string $id): bool {
$sth = \Db::pdo()->prepare('DELETE FROM ttrss_sessions WHERE id = ?');
return $sth->execute([$id]);
}
/**
* @todo set return type to int|false, and remove ReturnTypeWillChange, when min supported is PHP 8
* @return int|false the number of deleted sessions on success, or false on failure
*/
#[\ReturnTypeWillChange]
public function gc(int $max_lifetime) {
$result = \Db::pdo()->query('DELETE FROM ttrss_sessions WHERE expire < ' . time());
return $result === false ? false : $result->rowCount();
}
});
if (!defined('NO_SESSION_AUTOSTART')) {
if (isset($_COOKIE[session_name()])) {
if (session_status() != PHP_SESSION_ACTIVE)
session_start();
}
}
}
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