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<?php
// Original from http://www.daniweb.com/code/snippet43.html
require_once "config.php";
require_once "classes/db.php";
require_once "autoload.php";
require_once "errorhandler.php";
require_once "lib/accept-to-gettext.php";
require_once "lib/gettext/gettext.inc";
require_once "version.php";
$session_expire = min(2147483647 - time() - 1, max(SESSION_COOKIE_LIFETIME, 86400));
$session_name = (!defined('TTRSS_SESSION_NAME')) ? "ttrss_sid" : TTRSS_SESSION_NAME;
if (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", min(0, SESSION_COOKIE_LIFETIME));
function session_get_schema_version() {
global $schema_version;
if (!$schema_version) {
$row = Db::pdo()->query("SELECT schema_version FROM ttrss_version")->fetch();
$version = $row["schema_version"];
$schema_version = $version;
return $version;
} else {
return $schema_version;
}
}
function validate_session() {
if (SINGLE_USER_MODE) return true;
if (isset($_SESSION["ref_schema_version"]) && $_SESSION["ref_schema_version"] != session_get_schema_version()) {
$_SESSION["login_error_msg"] =
__("Session failed to validate (schema version changed)");
return false;
}
$pdo = Db::pdo();
if ($_SESSION["uid"]) {
if (!defined('_SESSION_SKIP_UA_CHECKS') && $_SESSION["user_agent"] != sha1($_SERVER['HTTP_USER_AGENT'])) {
$_SESSION["login_error_msg"] = __("Session failed to validate (UA changed).");
return false;
}
$sth = $pdo->prepare("SELECT pwd_hash FROM ttrss_users WHERE id = ?");
$sth->execute([$_SESSION['uid']]);
// user not found
if ($row = $sth->fetch()) {
$pwd_hash = $row["pwd_hash"];
if ($pwd_hash != $_SESSION["pwd_hash"]) {
$_SESSION["login_error_msg"] =
__("Session failed to validate (password changed)");
return false;
}
} else {
$_SESSION["login_error_msg"] =
__("Session failed to validate (user not found)");
return false;
}
}
return true;
}
/**
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*/
function ttrss_open ($s, $n) {
return true;
}
function ttrss_read ($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"]);
} else {
$expire = time() + $session_expire;
$sth = Db::pdo()->prepare("INSERT INTO ttrss_sessions (id, data, expire)
VALUES (?, '', ?)");
$sth->execute([$id, $expire]);
return "";
}
}
function ttrss_write ($id, $data) {
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 ($row = $sth->fetch()) {
$sth = Db::pdo()->prepare("UPDATE ttrss_sessions SET data=?, expire=? WHERE id=?");
$sth->execute([$data, $expire, $id]);
} else {
$sth = Db::pdo()->prepare("INSERT INTO ttrss_sessions (id, data, expire)
VALUES (?, ?, ?)");
$sth->execute([$id, $data, $expire]);
}
return true;
}
function ttrss_close () {
return true;
}
function ttrss_destroy($id) {
$sth = Db::pdo()->prepare("DELETE FROM ttrss_sessions WHERE id = ?");
$sth->execute([$id]);
return true;
}
/**
* @SuppressWarnings(PHPMD.UnusedFormalParameter)
*/
function ttrss_gc ($expire) {
Db::pdo()->query("DELETE FROM ttrss_sessions WHERE expire < " . time());
return true;
}
if (!SINGLE_USER_MODE /* && DB_TYPE == "pgsql" */) {
session_set_save_handler("ttrss_open",
"ttrss_close", "ttrss_read", "ttrss_write",
"ttrss_destroy", "ttrss_gc");
register_shutdown_function('session_write_close');
}
if (!defined('NO_SESSION_AUTOSTART')) {
if (isset($_COOKIE[session_name()])) {
@session_start();
}
}
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