fix: 终审修复——网关代理主机不可位移(堵 SSRF/令牌外泄)+onError 统一错误形状
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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@@ -14,6 +14,8 @@ vi.hoisted(() => {
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let downstream: ReturnType<typeof serve>;
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let captured: { auth?: string; fake?: string; path?: string; method?: string; body?: string } = {};
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/** 主机保全见证:只有真打到"配置的下游"这台服务的请求才会记进来(C1 回归用) */
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const hits: string[] = [];
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describe('gateway proxy', () => {
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let token = '';
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@@ -43,8 +45,13 @@ describe('gateway proxy', () => {
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return c.json({ from: 'downstream' });
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});
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// D11:等 listening 回调再往下走,否则首个用例可能打在还没起来的端口上
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// 在路由之前记账:不管 echo 内部匹不匹得上这条路径,只要连上了这台服务就算"主机没被换掉"
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const witnessed = (req: Request): Response | Promise<Response> => {
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hits.push(new URL(req.url).pathname);
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return echo.fetch(req);
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};
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downstream = await new Promise<ReturnType<typeof serve>>((resolve) => {
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const s = serve({ fetch: echo.fetch, port: 18811 }, () => resolve(s));
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const s = serve({ fetch: witnessed, port: 18811 }, () => resolve(s));
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});
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});
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afterAll(() => {
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@@ -92,6 +99,21 @@ describe('gateway proxy', () => {
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expect(body.hint).toBeTruthy();
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});
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// C1 回归:剥前缀后余下的路径若以 // 开头就是协议相对 URL,旧写法 new URL(path, target)
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// 会让它顶掉 target 的 host——Authorization 与请求体直接外泄到攻击者选定的主机。
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// 两个变体都选"必然连不上"的主机:位移一旦发生就是 502(端口 1 拒连 / 域名解析失败),
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// 而 hits 里没有记录;主机保全则相反:不是 502,且配置的下游确实收到了这条路径。
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it('路径双斜杠不得位移下游主机:Authorization 不外泄(C1)', async () => {
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for (const injected of ['//127.0.0.1:1/x', '//evil.example.com/x']) {
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hits.length = 0;
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const res = await buildApp().request(`/api/task${injected}`, {
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headers: { authorization: `Bearer ${token}` },
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});
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expect(res.status).not.toBe(502); // 502=网关真去连了被注入的主机
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expect(hits).toEqual([injected]); // 配置的下游收到了=host 没被换掉
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}
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});
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it('下游 gzip 响应:解码后的 body 不得再带 content-encoding(D9)', async () => {
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const res = await buildApp().request('/api/task/gzip', {
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headers: { authorization: `Bearer ${token}` },
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