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- <?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";
- $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", 50);
- ini_set("session.name", $session_name);
- ini_set("session.use_only_cookies", true);
- ini_set("session.gc_maxlifetime", $session_expire);
- 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;
- $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, $query);
- }
- if (!SINGLE_USER_MODE /* && DB_TYPE == "pgsql" */) {
- session_set_save_handler("ttrss_open",
- "ttrss_close", "ttrss_read", "ttrss_write",
- "ttrss_destroy", "ttrss_gc");
- }
- if (!defined('TTRSS_SESSION_NAME') || TTRSS_SESSION_NAME != 'ttrss_api_sid') {
- if (isset($_COOKIE[$session_name])) {
- @session_start();
- if (!isset($_SESSION["uid"]) || !$_SESSION["uid"] || !validate_session($session_connection)) {
- session_destroy();
- setcookie(session_name(), '', time()-42000, '/');
- }
- }
- }
- ?>
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