add tcp server and client chapter

Sascha Schulz

2024-09-30 bd8f799af4fd6d61a5cef8b4faa6789fcb5e2b76

add tcp server and client chapter

 index.html

@@ -4310,6 +4310,61 @@
                            </code>
                        </pre>
                    </section>
                    <section>
                        <h3>TCP-Verbindungen</h3>
                    </section>
                    <section>
                        <ul>
                            <li>Bidirektionale Verbindung</li>
                            <li>Duplexfähig</li>
                            <li>Besteht immer aus Server- und Client-Socket</li>
                        </ul>
                    </section>
                    <section>
                        Mit dem nativen Modul <code>net</code> ist es möglich, eine TCP-Verbindung aufzubauen
                        <pre>
                            <code class="js" data-trim data-line-numbers>
                                /* Server */
                                const net = require("net");

                                const server = net.createServer((socket) => {
								
                                    // new incoming connection
                                    socket.on("data", (data) => {
                                        // data is a buffer
                                    });
								
                                    socket.write("Hello World!");
                                });
								
                                server.listen(3000);
                            </code>
                        </pre>
                    </section>
                    <section>
                        <pre>
                            <code class="js" data-trim data-line-numbers>
                                /* Client */
                                const net = require("net");

                                const socket = net.connect(3000, () => {
                                    // 'connect' listener
                                });
								
                                socket.on("data", (data) => {
                                    // data is a buffer
                                });
                            </code>
                        </pre>
                    </section>
                    <section>
                        <p>Aufgabe</p>
                        <p>Implementiere die Clientlogik in der <code>tcp-client.js</code>, um dem Server ein <code>"Hello Server!"</code> zurück zu senden</p>
                    </section>
                    <section>
                        <p>Aufgabe</p>
                        <p>Sende eine festgelegte Datei vom Server zum Client. Der Server liest die Datei ein und sendet die Inhalte zum Client, welcher diese wiederum in eine Zieldatei schreibt. Eventuell darf auch noch eine Kompression mittels Zip / Deflate implementiert werden.</p>
                    </section>
                </section>
            </div>
        </div>