<?php // Original from http://www.daniweb.com/code/snippet43.html require_once "config.php"; require_once "db.php"; require_once "lib/accept-to-gettext.php"; require_once "lib/gettext/gettext.inc"; require_once "version.php"; $session_expire = max(SESSION_COOKIE_LIFETIME, 86400); $session_name = (!defined('TTRSS_SESSION_NAME')) ? "ttrss_sid" : TTRSS_SESSION_NAME; if (@$_SERVER['HTTPS'] == "on") { $session_name .= "_ssl"; 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)); global $session_connection; function session_get_schema_version($link, $nocache = false) { global $schema_version; if (!$schema_version) { $result = db_query($link, "SELECT schema_version FROM ttrss_version"); $version = db_fetch_result($result, 0, "schema_version"); $schema_version = $version; return $version; } else { return $schema_version; } } function validate_session($link) { if (SINGLE_USER_MODE) return true; if (!$link) return false; if (VERSION != $_SESSION["version"]) return false; $check_ip = $_SESSION['ip_address']; switch (SESSION_CHECK_ADDRESS) { case 0: $check_ip = ''; break; case 1: $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1); break; case 2: $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')); $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1); break; }; if ($check_ip && strpos($_SERVER['REMOTE_ADDR'], $check_ip) !== 0) { $_SESSION["login_error_msg"] = __("Session failed to validate (incorrect IP)"); return false; } if ($_SESSION["ref_schema_version"] != session_get_schema_version($link, true)) return false; if (sha1($_SERVER['HTTP_USER_AGENT']) != $_SESSION["user_agent"]) return false; if ($_SESSION["uid"]) { $result = db_query($link, "SELECT pwd_hash FROM ttrss_users WHERE id = '".$_SESSION["uid"]."'"); // user not found if (db_num_rows($result) == 0) { return false; } else { $pwd_hash = db_fetch_result($result, 0, "pwd_hash"); if ($pwd_hash != $_SESSION["pwd_hash"]) { return false; } } } /* if ($_SESSION["cookie_lifetime"] && $_SESSION["uid"]) { //print_r($_SESSION); if (time() > $_SESSION["cookie_lifetime"]) { return false; } } */ return true; } function ttrss_open ($s, $n) { global $session_connection; $session_connection = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME); return true; } function ttrss_read ($id){ global $session_connection,$session_read; $query = "SELECT data FROM ttrss_sessions WHERE id='$id'"; $res = db_query($session_connection, $query); if (db_num_rows($res) != 1) { return ""; } else { $session_read = db_fetch_assoc($res); $session_read["data"] = base64_decode($session_read["data"]); return $session_read["data"]; } } function ttrss_write ($id, $data) { if (! $data) { return false; } global $session_connection, $session_read, $session_expire; $expire = time() + $session_expire; $data = db_escape_string($session_connection, base64_encode($data), false); if ($session_read) { $query = "UPDATE ttrss_sessions SET data='$data', expire='$expire' WHERE id='$id'"; } else { $query = "INSERT INTO ttrss_sessions (id, data, expire) VALUES ('$id', '$data', '$expire')"; } db_query($session_connection, $query); return true; } function ttrss_close () { global $session_connection; //db_close($session_connection); return true; } function ttrss_destroy ($id) { global $session_connection; $query = "DELETE FROM ttrss_sessions WHERE id = '$id'"; db_query($session_connection, $query); return true; } function ttrss_gc ($expire) { global $session_connection; $query = "DELETE FROM ttrss_sessions WHERE expire < " . time(); db_query($session_connection, $query); } if (!SINGLE_USER_MODE /* && DB_TYPE == "pgsql" */) { session_set_save_handler("ttrss_open", "ttrss_close", "ttrss_read", "ttrss_write", "ttrss_destroy", "ttrss_gc"); } if (!defined('NO_SESSION_AUTOSTART')) { if (isset($_COOKIE[session_name()])) { @session_start(); } } ?>