<?php // Start session ini_set("session.cookie_httponly", 1); if (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && strtolower($_SERVER['HTTP_X_FORWARDED_PROTO']) == "https") { ini_set("session.cookie_secure", 1); $IS_HTTPS = true; } elseif (isset($_SERVER['HTTPS'])) { ini_set("session.cookie_secure", 1); $IS_HTTPS = true; } else { $IS_HTTPS = false; } session_set_cookie_params($SESSION_LIFETIME, '/', '', $IS_HTTPS, true); session_start(); if (!isset($_SESSION['CSRF']['TOKEN'])) { $_SESSION['CSRF']['TOKEN'] = bin2hex(random_bytes(32)); } // Set session UA if (!isset($_SESSION['SESS_REMOTE_UA'])) { $_SESSION['SESS_REMOTE_UA'] = $_SERVER['HTTP_USER_AGENT']; } // Check session function session_check() { if (!isset($_SESSION['SESS_REMOTE_UA'])) { return false; } if ($_SESSION['SESS_REMOTE_UA'] != $_SERVER['HTTP_USER_AGENT']) { return false; } if (!empty($_POST)) { if ($_SESSION['CSRF']['TOKEN'] != $_POST['csrf_token']) { return false; } $_SESSION['CSRF']['TOKEN'] = bin2hex(random_bytes(32)); $_SESSION['CSRF']['TIME'] = time(); } return true; } if (isset($_SESSION['mailcow_cc_role']) && session_check() === false) { $_SESSION['return'] = array( 'type' => 'warning', 'msg' => 'Form token invalid or timed out' ); $_POST = array(); } // Handle logouts if (isset($_POST["logout"])) { if (isset($_SESSION["dual-login"])) { $_SESSION["mailcow_cc_username"] = $_SESSION["dual-login"]["username"]; $_SESSION["mailcow_cc_role"] = $_SESSION["dual-login"]["role"]; unset($_SESSION["dual-login"]); } else { session_regenerate_id(true); session_unset(); session_destroy(); session_write_close(); header("Location: /"); } }