update to version 1.4

src/ZM/Http/StaticFileHandler.php

@@ -0,0 +1,35 @@
+<?php
+
+
+namespace ZM\Http;
+
+
+use Framework\Console;
+use Framework\ZMBuf;
+use ZM\Utils\ZMUtil;
+
+class StaticFileHandler
+{
+    public function __construct($filename, $path) {
+        $full_path = realpath($path . "/" . $filename);
+        $response = ctx()->getResponse();
+        Console::debug("Full path: ".$full_path);
+        if ($full_path !== false) {
+            if (strpos($full_path, $path) !== 0) {
+                $response->status(403);
+                $response->end("403 Forbidden");
+                return true;
+            } else {
+                if(is_file($full_path)) {
+                    $exp = strtolower(pathinfo($full_path)['extension'] ?? "unknown");
+                    $response->setHeader("Content-Type", ZMBuf::config("file_header")[$exp] ?? "application/octet-stream");
+                    $response->end(file_get_contents($full_path));
+                    return true;
+                }
+            }
+        }
+        $response->status(404);
+        $response->end(ZMUtil::getHttpCodePage(404));
+        return true;
+    }
+}