Erste Schritte für Server

Server/server/FileHandler.ts

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+import { existsSync, readFileSync } from 'node:fs';
+import { www_folder, index_alias } from './Webserver';
+
+class Mapping {
+    ending: string;
+    encoding: string;
+}
+
+const mappings: Mapping[] = [
+    { ending: 'html', encoding: 'text/html' },
+    { ending: 'js', encoding: 'text/javascript' },
+    { ending: 'css', encoding: 'text/css' },
+    { ending: 'json', encoding: 'application/json' },
+    { ending: 'ico', encoding: 'image/x-icon' },
+    { ending: 'svg', encoding: 'image/svg+xml' },
+    { ending: 'txt', encoding: 'text/plain' },
+]
+
+export class File {
+    type: string;
+    content: Buffer;
+
+    constructor(type: string, content: Buffer) {
+        this.content = content;
+        this.type = type;
+    }
+}
+
+export function file_allowed(url: string): boolean { 
+    let allowed: boolean = false;
+    let m = url.match('\\.\\.');
+    if (m == null) {
+        allowed = true;
+    }
+    return allowed;
+}
+
+export function file_exists(url: string): boolean {
+    if(url == '/') {
+        url = index_alias;
+    }
+    return existsSync(www_folder + url);
+}
+
+export function file_get(url: string): File {
+    if(url == '/') {
+        url = index_alias;
+    }
+    return new File(get_type(url), readFileSync(www_folder + url));
+}
+
+function get_type(url: string): string {
+    if(url == '/') {
+        url = index_alias;
+    }
+    let type: string = 'application/octet-stream';
+    let m: Mapping = mappings.find((e) => e.ending == url.split('.').pop());
+    if(m != undefined) {
+        type = m.encoding;
+    }
+    return type;
+}

Server/server/RequestHandler.ts

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+import { IncomingMessage, ServerResponse } from "node:http";
+import { file_allowed, file_exists, file_get, File } from "./FileHandler";
+
+export function new_request(req: IncomingMessage, res: ServerResponse): void {
+    if(file_allowed(req.url)) {
+        if(file_exists(req.url)) {
+            res.statusCode = 200;
+            let f: File = file_get(req.url)
+            res.setHeader('Content-Type', f.type);
+            res.end(f.content);
+        } else {
+            res.statusCode = 404;
+        }
+    } else {
+        res.statusCode = 403;
+    }
+    console.log(req.url, res.statusCode);
+    res.end();
+}

Server/server/Webserver.ts

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+import { createServer } from 'node:http'
+import { new_request } from './RequestHandler';
+
+
+export const www_folder: string = '/home/carsten/Dokumente/SmartHomeDashboard/html/';
+export const index_alias: string = 'index.html';
+const port: number = 8080;
+const hostname: string = '127.0.0.1';
+
+
+export function start_server(): void {
+    const server = createServer(new_request);
+
+    server.listen(port, hostname, () => {
+        console.log('Server running at http://' + hostname  + ':' + port);
+    });
+}
+

Server/server/main.ts

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+import { start_server } from "./Webserver";
+
+start_server();
+console.log("Server started");