X button deletes specific messag with ajax

Author: simonLeary42

resources/lib/UnityHTTPD.php

@@ -170,13 +170,25 @@ public static function errorHandler(int $severity, string $message, string $file
 
     public static function getPostData(string $key): mixed
     {
-        try {
-            return $_POST[$key];
-        } catch (ArrayKeyException $e) {
-            self::badRequest('failed to get $_POST data', $e, [
-                '$_POST' => $_POST,
-            ]);
+        if (!isset($_SERVER)) {
+            throw new RuntimeException('$_SERVER is unset');
+        }
+        if (!array_key_exists("REQUEST_METHOD", $_SERVER)) {
+            throw new RuntimeException('$_SERVER has no array key "REQUEST_METHOD"');
+        }
+        if ($_SERVER["REQUEST_METHOD"] !== "POST") {
+            self::badRequest('$_SERVER["REQUEST_METHOD"] != "POST"');
+        }
+        if (!isset($_POST)) {
+            self::badRequest('$_POST is unset');
+        }
+        if ($_POST === null) {
+            self::badRequest('$_POST is null');
+        }
+        if (!array_key_exists($key, $_POST)) {
+            self::badRequest("\$_POST has no array key '$key'");
         }
+        return $_POST[$key];
     }
 
     public static function getUploadedFileContents(

resources/templates/header.php

@@ -147,15 +147,32 @@
               <div class='message %s'>
                 <h3>%s</h3>
                 <p>%s</p>
-                <button onclick=\"this.parentElement.style.display='none';\">×</button>
+                <button
+                  onclick=\"
+                    this.parentElement.style.display='none';
+                    $.ajax({
+                        url: '/panel/ajax/delete_message.php',
+                        method: 'POST',
+                        data: {
+                          'level': '%s',
+                          'title_regex': '/^%s$/',
+                          'body_regex': '/^%s$/',
+                        }
+                    });
+                  \"
+                >
+                  ×
+                </button>
               </div>
             ",
             htmlspecialchars($level->value),
             htmlspecialchars($title),
-            htmlspecialchars($body)
+            htmlspecialchars($body),
+            htmlspecialchars($level->value),
+            htmlspecialchars($title),
+            htmlspecialchars($body),
         );
     }
-    UnityHTTPD::clearMessages();
     if (
         isset($_SESSION["is_admin"])
         && $_SESSION["is_admin"]

webroot/panel/ajax/delete_message.php

@@ -0,0 +1,12 @@
+<?php
+
+require_once __DIR__ . "/../../../resources/autoload.php";
+
+use UnityWebPortal\lib\UnityHTTPD;
+use UnityWebPortal\lib\UnityHTTPDMessageLevel;
+
+$level_str = UnityHTTPD::getPostData("level");
+$level = UnityHTTPDMessageLevel::from($level_str);
+$title_regex = UnityHTTPD::getPostData("title_regex");
+$body_regex = UnityHTTPD::getPostData("body_regex");
+UnityHTTPD::deleteMessage($level, $title_regex, $body_regex);