源码快照 @ 2026-09-02 (source-only, 剔除非源码素材)

evals/drivers/posthog-capture-mock.mjs

@@ -0,0 +1,84 @@
+#!/usr/bin/env node
+/**
+ * Tiny PostHog capture mock.
+ *
+ * Usage:
+ *   node evals/drivers/posthog-capture-mock.mjs --port 19877
+ *   LANDING_POSTHOG_HOST=http://127.0.0.1:19877 pnpm --dir ee/apps/landing dev
+ */
+
+import { createServer } from "node:http";
+
+const DEFAULT_PORT = 19877;
+const events = [];
+
+function selectedPort() {
+  const index = process.argv.indexOf("--port");
+  const value = index === -1 ? process.env.POSTHOG_MOCK_PORT : process.argv[index + 1];
+  return Number(value ?? DEFAULT_PORT);
+}
+
+function sendJson(response, statusCode, body) {
+  response.writeHead(statusCode, {
+    "access-control-allow-origin": "*",
+    "access-control-allow-methods": "GET,POST,DELETE,OPTIONS",
+    "access-control-allow-headers": "content-type",
+    "content-type": "application/json; charset=utf-8"
+  });
+  response.end(JSON.stringify(body));
+}
+
+function readJson(request, response) {
+  let body = "";
+  request.setEncoding("utf8");
+  request.on("data", (chunk) => {
+    body += chunk;
+    if (body.length > 1_000_000) request.destroy();
+  });
+  request.on("end", () => {
+    try {
+      events.push(body ? JSON.parse(body) : {});
+      sendJson(response, 200, { status: 1 });
+    } catch {
+      sendJson(response, 400, { status: 0, error: "invalid_json" });
+    }
+  });
+}
+
+const server = createServer((request, response) => {
+  const url = new URL(request.url ?? "/", `http://${request.headers.host ?? "127.0.0.1"}`);
+  const method = request.method ?? "GET";
+
+  if (method === "OPTIONS") {
+    sendJson(response, 204, {});
+    return;
+  }
+
+  if (url.pathname === "/i/v0/e/" && method === "POST") {
+    readJson(request, response);
+    return;
+  }
+
+  if (url.pathname === "/events" && method === "GET") {
+    sendJson(response, 200, events);
+    return;
+  }
+
+  if (url.pathname === "/events" && method === "DELETE") {
+    events.length = 0;
+    sendJson(response, 200, { status: 1 });
+    return;
+  }
+
+  sendJson(response, 404, { status: 0, error: "not_found" });
+});
+
+const port = selectedPort();
+
+if (!Number.isInteger(port) || port <= 0) {
+  throw new Error(`Invalid port: ${port}`);
+}
+
+server.listen(port, "127.0.0.1", () => {
+  console.log(`PostHog capture mock listening at http://127.0.0.1:${port}`);
+});