Add bootstrap file for base vars, functions and includes

bootstrap.php

@@ -0,0 +1,69 @@
+<?php declare(strict_types=1);
+/**
+ * Hybula Looking Glass
+ *
+ * Provides UI and input for the looking glass backend.
+ *
+ * @copyright 2022 Hybula B.V.
+ * @license Mozilla Public License 2.0
+ * @version 1.1.0
+ * @since File available since release 1.1.0
+ * @link https://github.com/hybula/lookingglass
+ */
+use Hybula\LookingGlass;
+
+if (!file_exists(__DIR__ . '/config.php')) {
+    die('config.php is not found, but is required for application to work!');
+}
+
+require __DIR__ . '/config.php';
+require __DIR__ . '/LookingGlass.php';
+
+LookingGlass::validateConfig();
+LookingGlass::startSession();
+
+function exitErrorMessage(string $message): void
+{
+    unset($_SESSION[LookingGlass::SESSION_CALL_BACKEND]);
+    $_SESSION[LookingGlass::SESSION_ERROR_MESSAGE] = $message;
+    exitNormal();
+}
+
+function exitNormal(): void
+{
+    header('Location: /');
+    exit;
+}
+
+$templateData           = [
+    'title'                    => LG_TITLE,
+    'custom_css'               => LG_CSS_OVERRIDES,
+    'logo_url'                 => LG_LOGO_URL,
+    'logo_data'                => LG_LOGO,
+    //
+    'block_network'            => LG_BLOCK_NETWORK,
+    'block_lookingglas'        => LG_BLOCK_LOOKINGGLAS,
+    'block_speedtest'          => LG_BLOCK_SPEEDTEST,
+    'block_custom'             => LG_BLOCK_CUSTOM,
+    'custom_html'              => '',
+    //
+    'locations'                => LG_LOCATIONS,
+    'current_location'         => LG_LOCATION,
+    'maps_query'               => LG_MAPS_QUERY,
+    'facility'                 => LG_FACILITY,
+    'facility_url'             => LG_FACILITY_URL,
+    'ipv4'                     => LG_IPV4,
+    'ipv6'                     => LG_IPV6,
+    'methods'                  => LG_METHODS,
+    'user_ip'                  => LookingGlass::detectIpAddress(),
+    //
+    'speedtest_iperf'          => LG_SPEEDTEST_IPERF,
+    'speedtest_incoming_label' => LG_SPEEDTEST_LABEL_INCOMING,
+    'speedtest_incoming_cmd'   => LG_SPEEDTEST_CMD_INCOMING,
+    'speedtest_outgoing_label' => LG_SPEEDTEST_LABEL_OUTGOING,
+    'speedtest_outgoing_cmd'   => LG_SPEEDTEST_CMD_OUTGOING,
+    'speedtest_files'          => LG_SPEEDTEST_FILES,
+    //
+    'tos'                      => LG_TERMS,
+    'error_message'            => false,
+];