Exercices CM 1

exercice5.ts

@@ -0,0 +1,62 @@
+const listener = Deno.listen({ port: 8080 });
+
+const decoder = new TextDecoder();
+const encoder = new TextEncoder();
+
+for await (const conn of listener) {
+  handleConn(conn);
+}
+
+async function handleConn(conn: Deno.Conn) {
+  const buf = new Uint8Array(1024);
+  const bytes = await conn.read(buf);
+  if (bytes === null) {
+    conn.close();
+    return;
+  }
+
+  const rawRequest = decoder.decode(buf.subarray(0, bytes));
+
+  console.log(rawRequest);
+
+  const [
+    requestMethod,
+    requestHost,
+    requestUserAgent,
+    requestAccept,
+    requestContentType,
+    requestContentLength,
+    _,
+    requestBody,
+  ] = rawRequest.split("\r\n");
+
+  const [method, path, protocol] = requestMethod.split(" ");
+  const [, host] = requestHost.split(" ");
+  const [, userAgent] = requestUserAgent.split(" ");
+  const [, accept] = requestAccept.split(" ");
+  const [, contentType] = requestContentType.split(" ");
+  const [, contentLength] = requestContentLength.split(" ");
+
+  const responseBody = `{` +
+    `"method": "${method}",` +
+    `"path": "${path}",` +
+    `"protocol": "${protocol}",` +
+    `"host": "${host}",` +
+    `"user-agent": "${userAgent}",` +
+    `"accept": "${accept}",` +
+    `"content-type": "${contentType}",` +
+    `"content-length": "${contentLength}",` +
+    `"body": "${requestBody}"` +
+    `}\n`;
+
+  const response =
+    "HTTP/1.1 200 OK\r\n" +
+    "Content-Type: text/json\r\n" +
+    `Content-Length: ${responseBody.length}\r\n` +
+    "Connection: close\r\n" +
+    "\r\n" +
+    responseBody;
+
+  await conn.write(encoder.encode(response));
+  conn.close();
+}