|
| 1 | +import { execFile } from "child_process"; |
| 2 | +import { createServer, type Server } from "http"; |
| 3 | +import { mkdtempSync, rmSync, writeFileSync } from "fs"; |
| 4 | +import type { AddressInfo } from "net"; |
| 5 | +import { tmpdir } from "os"; |
| 6 | +import { join } from "path"; |
| 7 | +import { promisify } from "util"; |
| 8 | +import { afterAll, beforeAll, describe, expect, test } from "vite-plus/test"; |
| 9 | +import { cliPackageRoot } from "./helpers.ts"; |
| 10 | + |
| 11 | +const execFileAsync = promisify(execFile); |
| 12 | + |
| 13 | +/** |
| 14 | + * 代理支持 E2E（issue #35）：只验证 `setupProxyFromEnv()` 是否把代理 dispatcher |
| 15 | + * 正确装到全局 fetch 上——设了 HTTPS_PROXY 后裸 `fetch()` 走代理，未设置时直连， |
| 16 | + * NO_PROXY 命中时跳过，非法代理值给出明确报错。 |
| 17 | + * |
| 18 | + * 不经过任何 CLI 命令（不解析凭证、不打 gateway），因此 CI 上无需 api key / |
| 19 | + * access token，与既有 e2e 设计一致。全程离线：目标域名用 `.invalid`（保留顶级域， |
| 20 | + * 必然无法解析），代理收到 CONNECT 后规范返回 502，不产生真实外网请求。 |
| 21 | + */ |
| 22 | + |
| 23 | +const FAKE_HOST = "bl-proxy-e2e.invalid"; |
| 24 | +const FAKE_URL = `https://${FAKE_HOST}/probe`; |
| 25 | + |
| 26 | +/** |
| 27 | + * 最小探针脚本：调用真实的 `setupProxyFromEnv()`，再对目标发一个普通 fetch。 |
| 28 | + * 代理行为由进程环境变量决定，正是被测对象；fetch 成败不重要，我们只看代理是否收到 CONNECT。 |
| 29 | + */ |
| 30 | +const PROBE_SCRIPT = ` |
| 31 | +import { setupProxyFromEnv } from ${JSON.stringify(join(cliPackageRoot, "src", "proxy.ts"))}; |
| 32 | +setupProxyFromEnv(); |
| 33 | +try { |
| 34 | + await fetch(${JSON.stringify(FAKE_URL)}, { signal: AbortSignal.timeout(5000) }); |
| 35 | +} catch { |
| 36 | + // 目标不可达/隧道被拒都正常——本测试只关心代理是否收到 CONNECT |
| 37 | +} |
| 38 | +`; |
| 39 | + |
| 40 | +let proxy: Server; |
| 41 | +let proxyUrl: string; |
| 42 | +let scriptDir: string; |
| 43 | +let scriptPath: string; |
| 44 | +const connectTargets: string[] = []; |
| 45 | + |
| 46 | +beforeAll(async () => { |
| 47 | + proxy = createServer(); |
| 48 | + // 记录收到的 CONNECT 目标（host:port），并以 502 拒绝隧道 |
| 49 | + proxy.on("connect", (req, clientSocket) => { |
| 50 | + connectTargets.push(req.url ?? ""); |
| 51 | + clientSocket.end("HTTP/1.1 502 Bad Gateway\r\n\r\n"); |
| 52 | + }); |
| 53 | + await new Promise<void>((resolve) => proxy.listen(0, "127.0.0.1", resolve)); |
| 54 | + proxyUrl = `http://127.0.0.1:${(proxy.address() as AddressInfo).port}`; |
| 55 | + |
| 56 | + scriptDir = mkdtempSync(join(tmpdir(), "bl-proxy-e2e-")); |
| 57 | + scriptPath = join(scriptDir, "probe.ts"); |
| 58 | + writeFileSync(scriptPath, PROBE_SCRIPT); |
| 59 | +}); |
| 60 | + |
| 61 | +afterAll(async () => { |
| 62 | + await new Promise<void>((resolve) => proxy.close(() => resolve())); |
| 63 | + rmSync(scriptDir, { recursive: true, force: true }); |
| 64 | +}); |
| 65 | + |
| 66 | +/** 清空所有代理相关环境变量，确保每个用例只受自身设置影响 */ |
| 67 | +const PROXY_ENV_CLEARED = { |
| 68 | + HTTPS_PROXY: "", |
| 69 | + https_proxy: "", |
| 70 | + HTTP_PROXY: "", |
| 71 | + http_proxy: "", |
| 72 | + NO_PROXY: "", |
| 73 | + no_proxy: "", |
| 74 | +}; |
| 75 | + |
| 76 | +/** 以给定代理环境变量运行探针脚本，返回 { exitCode, stderr } */ |
| 77 | +async function runProbe( |
| 78 | + envOverrides: NodeJS.ProcessEnv, |
| 79 | +): Promise<{ exitCode: number; stderr: string }> { |
| 80 | + try { |
| 81 | + await execFileAsync("node", [scriptPath], { |
| 82 | + cwd: cliPackageRoot, |
| 83 | + encoding: "utf8", |
| 84 | + env: { ...process.env, NODE_NO_WARNINGS: "1", ...PROXY_ENV_CLEARED, ...envOverrides }, |
| 85 | + }); |
| 86 | + return { exitCode: 0, stderr: "" }; |
| 87 | + } catch (err: unknown) { |
| 88 | + const e = err as { stderr?: string; code?: number }; |
| 89 | + return { exitCode: typeof e.code === "number" ? e.code : 1, stderr: e.stderr ?? "" }; |
| 90 | + } |
| 91 | +} |
| 92 | + |
| 93 | +describe("e2e: proxy", () => { |
| 94 | + test("设置 HTTPS_PROXY 后 fetch 经过代理（CONNECT 到目标主机）", async () => { |
| 95 | + connectTargets.length = 0; |
| 96 | + await runProbe({ HTTPS_PROXY: proxyUrl }); |
| 97 | + expect(connectTargets).toContain(`${FAKE_HOST}:443`); |
| 98 | + }); |
| 99 | + |
| 100 | + test("空字符串小写变量不屏蔽大写 HTTPS_PROXY（undici ?? 取值回归）", async () => { |
| 101 | + connectTargets.length = 0; |
| 102 | + await runProbe({ https_proxy: "", HTTPS_PROXY: proxyUrl }); |
| 103 | + expect(connectTargets).toContain(`${FAKE_HOST}:443`); |
| 104 | + }); |
| 105 | + |
| 106 | + test("NO_PROXY 命中目标主机时不走代理", async () => { |
| 107 | + connectTargets.length = 0; |
| 108 | + await runProbe({ HTTPS_PROXY: proxyUrl, NO_PROXY: FAKE_HOST }); |
| 109 | + expect(connectTargets.filter((t) => t.startsWith(FAKE_HOST))).toEqual([]); |
| 110 | + }); |
| 111 | + |
| 112 | + test("未设置代理变量时保持直连（代理收不到任何流量）", async () => { |
| 113 | + connectTargets.length = 0; |
| 114 | + await runProbe({}); |
| 115 | + expect(connectTargets).toEqual([]); |
| 116 | + }); |
| 117 | + |
| 118 | + test("代理 URL 非法时给出明确报错而非堆栈", async () => { |
| 119 | + const { exitCode, stderr } = await runProbe({ HTTPS_PROXY: "::::not-a-url" }); |
| 120 | + expect(exitCode).not.toBe(0); |
| 121 | + expect(stderr).toMatch(/Invalid proxy configuration/); |
| 122 | + expect(stderr).toMatch(/HTTPS_PROXY/); |
| 123 | + }); |
| 124 | +}); |
0 commit comments