fleetingtime20026
317 lines
9.5 KiB
JavaScript
317 lines
9.5 KiB
JavaScript
#!/usr/bin/env node
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import http from "node:http";
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import net from "node:net";
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import { once } from "node:events";
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import { spawn } from "node:child_process";
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import { mkdtemp, rm, writeFile } from "node:fs/promises";
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import os from "node:os";
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import path from "node:path";
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const gatewayRoot = path.resolve(import.meta.dirname, "..");
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const gatewayEntry = path.join(gatewayRoot, "gateway.mjs");
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function assert(condition, message) {
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if (!condition) {
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throw new Error(message);
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}
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}
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async function getFreePort() {
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const server = net.createServer();
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server.listen(0, "127.0.0.1");
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await once(server, "listening");
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const address = server.address();
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const port = address && typeof address === "object" ? address.port : null;
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server.close();
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await once(server, "close");
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if (!port) {
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throw new Error("无法分配空闲端口");
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}
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return port;
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}
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function createJsonResponse(res, statusCode, body, extraHeaders = {}) {
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res.writeHead(statusCode, {
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"content-type": "application/json; charset=utf-8",
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...extraHeaders,
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});
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res.end(JSON.stringify(body));
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}
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function createSseResponse(res, chunks) {
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res.writeHead(200, {
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"content-type": "text/event-stream; charset=utf-8",
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"cache-control": "no-cache",
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connection: "keep-alive",
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"x-upstream-test": "sse",
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});
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let index = 0;
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const timer = setInterval(() => {
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if (index >= chunks.length) {
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clearInterval(timer);
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res.end();
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return;
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}
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res.write(chunks[index]);
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index += 1;
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}, 20);
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res.on("close", () => {
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clearInterval(timer);
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});
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}
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function startFakeUpstream(port) {
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const server = http.createServer((req, res) => {
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const responsePaths = new Set(["/responses", "/v1/responses"]);
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const chatCompletionPaths = new Set(["/chat/completions", "/v1/chat/completions"]);
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if (req.method === "GET" && req.url === "/v1/models") {
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createJsonResponse(
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res,
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200,
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{
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object: "list",
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data: [{ id: "fake-model" }],
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},
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{ "x-upstream-test": "models-ok" },
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);
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return;
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}
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if (req.method === "POST" && responsePaths.has(req.url)) {
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let body = "";
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req.setEncoding("utf8");
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req.on("data", (chunk) => {
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body += chunk;
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});
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req.on("end", () => {
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const parsed = JSON.parse(body || "{}");
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const reasoning = parsed.test_reasoning_tokens ?? 128;
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createJsonResponse(
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res,
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200,
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{
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id: "resp_test",
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usage: {
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output_tokens_details: {
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reasoning_tokens: reasoning,
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},
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},
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},
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{ "x-upstream-test": `responses-${reasoning}` },
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);
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});
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return;
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}
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if (req.method === "POST" && chatCompletionPaths.has(req.url)) {
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let body = "";
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req.setEncoding("utf8");
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req.on("data", (chunk) => {
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body += chunk;
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});
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req.on("end", () => {
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const parsed = JSON.parse(body || "{}");
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const reasoning = parsed.test_reasoning_tokens ?? 128;
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if (reasoning === 516) {
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createSseResponse(res, [
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'data: {"id":"chunk-1","choices":[{"delta":{"content":"hello"}}]}\n\n',
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'data: {"usage":{"completion_tokens_details":{"reasoning_tokens":516}}}\n\n',
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"data: [DONE]\n\n",
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]);
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return;
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}
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createSseResponse(res, [
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'data: {"id":"chunk-1","choices":[{"delta":{"content":"hello"}}]}\n\n',
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'data: {"usage":{"completion_tokens_details":{"reasoning_tokens":128}}}\n\n',
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"data: [DONE]\n\n",
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]);
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});
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return;
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}
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createJsonResponse(res, 404, { error: "not found" });
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});
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return new Promise((resolve, reject) => {
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server.once("error", reject);
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server.listen(port, "127.0.0.1", () => resolve(server));
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});
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}
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async function waitForHealth(url, timeoutMs = 5000) {
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const startedAt = Date.now();
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while (Date.now() - startedAt < timeoutMs) {
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try {
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const response = await fetch(url);
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if (response.ok) {
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return;
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}
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} catch {
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// ignore startup race
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}
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await new Promise((resolve) => setTimeout(resolve, 100));
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}
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throw new Error(`等待网关健康检查超时: ${url}`);
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}
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function startGateway(configPath, logPath) {
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const child = spawn(process.execPath, [gatewayEntry, "--config", configPath, "--log", logPath], {
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cwd: gatewayRoot,
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stdio: ["ignore", "pipe", "pipe"],
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});
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let stdout = "";
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let stderr = "";
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child.stdout.on("data", (chunk) => {
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stdout += chunk.toString();
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});
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child.stderr.on("data", (chunk) => {
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stderr += chunk.toString();
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});
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return {
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child,
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getOutput() {
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return { stdout, stderr };
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},
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};
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}
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async function readSseUntilClose(url, requestBody) {
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const response = await fetch(url, {
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method: "POST",
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headers: { "content-type": "application/json" },
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body: JSON.stringify(requestBody),
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});
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const reader = response.body.getReader();
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const decoder = new TextDecoder("utf8");
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let text = "";
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let closedByError = false;
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while (true) {
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try {
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const { done, value } = await reader.read();
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if (done) {
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break;
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}
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text += decoder.decode(value, { stream: true });
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} catch (error) {
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closedByError = true;
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text += `\n[[reader-error:${error?.name || "unknown"}]]`;
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break;
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}
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}
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text += decoder.decode();
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return {
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status: response.status,
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headers: response.headers,
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text,
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closedByError,
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};
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}
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async function run() {
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const tempRoot = await mkdtemp(path.join(os.tmpdir(), "codex-retry-gateway-"));
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const upstreamPort = await getFreePort();
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const gatewayPort = await getFreePort();
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const configPath = path.join(tempRoot, "config.json");
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const logPath = path.join(tempRoot, "gateway.log");
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const config = {
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listen_host: "127.0.0.1",
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listen_port: gatewayPort,
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upstream_base_url: `http://127.0.0.1:${upstreamPort}`,
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request_body_limit_bytes: 10 * 1024 * 1024,
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endpoints: ["/responses", "/chat/completions", "/v1/responses", "/v1/chat/completions"],
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reasoning_equals: [516],
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non_stream_status_code: 502,
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stream_action: "disconnect",
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log_match: true,
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health_path: "/__codex_retry_gateway/health",
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};
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await writeFile(configPath, JSON.stringify(config, null, 2), "utf8");
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const upstream = await startFakeUpstream(upstreamPort);
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const gateway = startGateway(configPath, logPath);
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try {
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await waitForHealth(`http://127.0.0.1:${gatewayPort}${config.health_path}`);
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const modelsResponse = await fetch(`http://127.0.0.1:${gatewayPort}/v1/models`);
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assert(modelsResponse.status === 200, `/v1/models 透传状态异常: ${modelsResponse.status}`);
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assert(
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modelsResponse.headers.get("x-upstream-test") === "models-ok",
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"/v1/models 未保留上游头",
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);
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for (const responsePath of ["/responses", "/v1/responses"]) {
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const blockedResponse = await fetch(`http://127.0.0.1:${gatewayPort}${responsePath}`, {
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method: "POST",
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headers: { "content-type": "application/json" },
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body: JSON.stringify({ test_reasoning_tokens: 516 }),
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});
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const blockedBody = await blockedResponse.json();
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assert(blockedResponse.status === 502, `${responsePath} 516 未返回 502: ${blockedResponse.status}`);
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assert(
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blockedBody?.error?.code === "reasoning_guard_triggered",
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`${responsePath} 516 返回体不正确`,
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);
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const okResponse = await fetch(`http://127.0.0.1:${gatewayPort}${responsePath}`, {
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method: "POST",
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headers: { "content-type": "application/json" },
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body: JSON.stringify({ test_reasoning_tokens: 128 }),
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});
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const okBody = await okResponse.json();
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assert(okResponse.status === 200, `${responsePath} 128 透传状态异常: ${okResponse.status}`);
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assert(okResponse.headers.get("x-upstream-test") === "responses-128", `${responsePath} 128 未保留头`);
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assert(
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okBody?.usage?.output_tokens_details?.reasoning_tokens === 128,
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`${responsePath} 128 返回体异常`,
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);
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}
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for (const streamPath of ["/chat/completions", "/v1/chat/completions"]) {
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const blockedStream = await readSseUntilClose(
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`http://127.0.0.1:${gatewayPort}${streamPath}`,
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{ stream: true, test_reasoning_tokens: 516 },
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);
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assert(blockedStream.status === 200, `${streamPath} 516 首状态异常: ${blockedStream.status}`);
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assert(blockedStream.text.includes('"content":"hello"'), `${streamPath} 流式 516 未先透传正常 chunk`);
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assert(!blockedStream.text.includes("[DONE]"), `${streamPath} 流式 516 不应完整结束`);
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assert(
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blockedStream.closedByError || blockedStream.text.includes("[[reader-error:"),
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`${streamPath} 流式 516 未表现为中途断开`,
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);
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const okStream = await readSseUntilClose(
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`http://127.0.0.1:${gatewayPort}${streamPath}`,
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{ stream: true, test_reasoning_tokens: 128 },
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);
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assert(okStream.status === 200, `${streamPath} 128 首状态异常: ${okStream.status}`);
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assert(okStream.text.includes("[DONE]"), `${streamPath} 流式 128 未完整结束`);
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assert(!okStream.closedByError, `${streamPath} 流式 128 不应异常断开`);
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}
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process.stdout.write("PASS codex-retry-gateway e2e\n");
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} finally {
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gateway.child.kill();
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upstream.close();
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await once(upstream, "close");
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await rm(tempRoot, { recursive: true, force: true });
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}
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}
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run().catch((error) => {
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process.stderr.write(`${error?.stack || error}\n`);
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process.exit(1);
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});
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