From 0249aad0a3e43d28cc1b99a4ffe8558cf4aa18c3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bruno=20Ryb=C3=A1rsky?= <bruno@brn.systems>
Date: Sat, 3 Feb 2024 16:46:09 +0100
Subject: [PATCH] error handling

---
 index.php          | 63 +++++++++++++++++-----------------------------
 lib/main.php       | 37 +++++++++++++++++++++++++++
 lib/navigation.php | 16 ++++++++----
 lib/page.php       |  3 +++
 templates/500.html |  1 +
 5 files changed, 75 insertions(+), 45 deletions(-)
 create mode 100644 lib/main.php

diff --git a/index.php b/index.php
index 8789e0a..23d583a 100644
--- a/index.php
+++ b/index.php
@@ -1,41 +1,24 @@
-<?php /** @noinspection PhpArrayIsAlwaysEmptyInspection */
-/** @noinspection PhpArrayIsAlwaysEmptyInspection */
-/** @noinspection PhpArrayIsAlwaysEmptyInspection */
-/** @noinspection PhpIncludeInspection */
-require_once "secrets/config.php";
-require_once "lib/config.php";
-require_once "lib/navigation.php";
-require_once "lib/router.php";
-require_once "lib/page.php";
-require_once "lib/endpoint.php";
-require_once "lib/account.php";
-
-$routerConfig = array();
-$routerRequest = array();
-
-loadRouterConfig();
-$canRender = initRouter();
-if($canRender) {
-    /** @noinspection PhpArrayIsAlwaysEmptyInspection */
-    session_set_cookie_params(0, '/', "." . $routerRequest["domain"] . "." . $routerRequest["tld"], true, true);
-    session_start();
-
-    if(!isLoggedIn()){
-        setDefaultSessionData();
+<?php
+try {
+    require_once 'lib/config.php';
+    global $routerConfig;
+    try {
+        require_once 'lib/main.php';
+    } catch (Exception $eMain) {
+        $page = file_get_contents($routerConfig["template_dir"] . "500.html");
+        $error_msg = "Error Message";
+        try {
+            require_once 'lib/account.php';
+            if (isAdmin()) {
+                $error_msg = $eMain;
+            }
+        } catch (Exception) {
+        } finally {
+            $page = str_replace("__TEMPLATE_ERROR__", $error_msg, $page);
+            echo $page;
+            http_response_code(500);
+        }
     }
-
-    if($routerRequest["type"] == "api") {
-        echo getEndpoint($routerRequest["page_name"]);
-
-    }elseif ($routerRequest["type"] == "page") {
-        /** @noinspection PhpArrayIsAlwaysEmptyInspection */
-        echo getPage($routerRequest["page_name"]);
-    }
-    else{
-        echo "Unknown request";
-    }
-}
-else{
-    exit();
-}
-
+} catch (Exception $e){
+    echo $e;
+}
\ No newline at end of file
diff --git a/lib/main.php b/lib/main.php
new file mode 100644
index 0000000..e8f08d6
--- /dev/null
+++ b/lib/main.php
@@ -0,0 +1,37 @@
+<?php /** @noinspection PhpArrayIsAlwaysEmptyInspection */
+/** @noinspection PhpArrayIsAlwaysEmptyInspection */
+/** @noinspection PhpArrayIsAlwaysEmptyInspection */
+/** @noinspection PhpIncludeInspection */
+require_once "secrets/config.php";
+require_once 'lib/config.php';
+require_once "lib/navigation.php";
+require_once "lib/router.php";
+require_once "lib/page.php";
+require_once "lib/endpoint.php";
+require_once "lib/account.php";
+
+$routerConfig = array();
+$routerRequest = array();
+
+loadRouterConfig();
+$canRender = initRouter();
+if($canRender) {
+    /** @noinspection PhpArrayIsAlwaysEmptyInspection */
+    session_set_cookie_params(0, '/', "." . $routerRequest["domain"] . "." . $routerRequest["tld"], true, true);
+    session_start();
+
+    if(!isLoggedIn()){
+        setDefaultSessionData();
+    }
+
+    if($routerRequest["type"] == "api") {
+        echo getEndpoint($routerRequest["page_name"]);
+
+    }elseif ($routerRequest["type"] == "page") {
+        /** @noinspection PhpArrayIsAlwaysEmptyInspection */
+        echo getPage($routerRequest["page_name"]);
+    }
+    else{
+        echo "Unknown request";
+    }
+}
diff --git a/lib/navigation.php b/lib/navigation.php
index 1ab0549..2e42594 100644
--- a/lib/navigation.php
+++ b/lib/navigation.php
@@ -2,13 +2,19 @@
 
 function getDynamicPermission($file): int {
     global $routerConfig;
-    $page_tmp = include_once($file);
-    $permission_level = $page_tmp["parameters"]["minimal_permission_level"];
+    try {
+        $page_tmp = include_once($file);
+        $permission_level = $page_tmp["parameters"]["minimal_permission_level"];
 
-    if(!is_numeric($permission_level) || $permission_level <= 0){
-        $permission_level = $routerConfig["default_page_permission_level"];
+        if (!is_numeric($permission_level) || $permission_level <= 0) {
+            $permission_level = $routerConfig["default_page_permission_level"];
+        }
+    }
+    catch (Exception){
+        $permission_level = $routerConfig["default_page_permission_level"];
+    } finally {
+        return $permission_level;
     }
-    return $permission_level;
 }
 
 function generateNavigation(): string
diff --git a/lib/page.php b/lib/page.php
index be59de8..a680335 100644
--- a/lib/page.php
+++ b/lib/page.php
@@ -97,6 +97,9 @@ function getPage($page_name = null): array|false|string
             $page_tmp = file_get_contents($routerConfig["template_dir"] . "403.html");
             $pageMetadata = parsePageTag($page_tmp);
             $page = $pageMetadata["output"];
+            if(!$page){
+                $page = "";
+            }
             http_response_code(403);
         }
     }
diff --git a/templates/500.html b/templates/500.html
index 065835a..fff8006 100644
--- a/templates/500.html
+++ b/templates/500.html
@@ -2,5 +2,6 @@
     <h2>Niekto to pobabral</h2>
     <h1 class="error-code">500</h1>
     <h3><i class="ri-error-warning-line"></i> Nejaký neschopný vývojár nevedel robiť túto stránku. <i class="ri-error-warning-line"></i></h3>
+    <h4>__TEMPLATE_ERROR__</h4>
     <a href="/index" class="back"><i class="ri-arrow-left-line"></i> SPÄŤ DOMOV</a>
 </div>
\ No newline at end of file