refactor: split GitOps renderer by responsibility

2026-07-10 08:22:44 +02:00
parent 8ad5976a07
commit b75dac8f75
26 changed files with 6282 additions and 5847 deletions
@@ -0,0 +1,48 @@
+#!/usr/bin/env node
+import net from "node:net";
+const [proxyHost, proxyPortRaw, targetHost, targetPortRaw] = process.argv.slice(2);
+const proxyPort = Number.parseInt(proxyPortRaw || "", 10);
+const targetPort = Number.parseInt(targetPortRaw || "", 10);
+if (!proxyHost || !Number.isInteger(proxyPort) || !targetHost || !Number.isInteger(targetPort)) {
+  console.error("hwlab git-mirror proxy-connect: invalid ProxyCommand arguments");
+  process.exit(64);
+}
+let settled = false;
+let tunnelEstablished = false;
+function finish(code, message) {
+  if (settled) return;
+  settled = true;
+  if (message) console.error("hwlab git-mirror proxy-connect: " + message);
+  process.exit(code);
+}
+const socket = net.createConnection({ host: proxyHost, port: proxyPort });
+let buffer = Buffer.alloc(0);
+socket.setTimeout(15000, () => { socket.destroy(); finish(65, "timeout connecting via " + proxyHost + ":" + proxyPort + " to " + targetHost + ":" + targetPort); });
+socket.on("connect", () => socket.write("CONNECT " + targetHost + ":" + targetPort + " HTTP/1.1\r\nHost: " + targetHost + ":" + targetPort + "\r\nProxy-Connection: Keep-Alive\r\n\r\n"));
+socket.on("error", (error) => finish(tunnelEstablished ? 69 : 66, (tunnelEstablished ? "tunnel socket error: " : "tcp error connecting to proxy: ") + (error && error.message ? error.message : String(error))));
+socket.on("close", () => { if (!tunnelEstablished) finish(68, "proxy closed before CONNECT completed via " + proxyHost + ":" + proxyPort + " to " + targetHost + ":" + targetPort); else finish(0); });
+function onData(chunk) {
+  buffer = Buffer.concat([buffer, chunk]);
+  const headerEnd = buffer.indexOf("\r\n\r\n");
+  if (headerEnd === -1 && buffer.length < 8192) return;
+  if (headerEnd === -1) { socket.destroy(); finish(68, "proxy response header exceeded 8192 bytes before CONNECT status via " + proxyHost + ":" + proxyPort + " to " + targetHost + ":" + targetPort); return; }
+  const head = buffer.slice(0, headerEnd + 4).toString("latin1");
+  const statusLine = head.split("\r\n", 1)[0] || "";
+  const statusCode = Number.parseInt(statusLine.split(" ")[1] || "", 10);
+  if (!statusLine.startsWith("HTTP/1.") || !Number.isInteger(statusCode) || statusCode < 200 || statusCode > 299) {
+    const safeStatus = statusLine.replace(/[^\x20-\x7e]/g, "?").slice(0, 160);
+    socket.destroy();
+    finish(67, "proxy CONNECT failed via " + proxyHost + ":" + proxyPort + " to " + targetHost + ":" + targetPort + ": " + safeStatus);
+    return;
+  }
+  socket.off("data", onData);
+  socket.setTimeout(0);
+  tunnelEstablished = true;
+  const rest = buffer.slice(headerEnd + 4);
+  if (rest.length) process.stdout.write(rest);
+  process.stdin.on("error", () => {});
+  process.stdout.on("error", () => {});
+  process.stdin.pipe(socket);
+  socket.pipe(process.stdout);
+}
+socket.on("data", onData);