fix(gateway): scope tailscale tokenless auth to websocket

src/gateway/http-auth-helpers.test.ts

@@ -0,0 +1,79 @@
+import type { IncomingMessage, ServerResponse } from "node:http";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+import type { ResolvedGatewayAuth } from "./auth.js";
+import { authorizeGatewayBearerRequestOrReply } from "./http-auth-helpers.js";
+
+vi.mock("./auth.js", () => ({
+  authorizeGatewayConnect: vi.fn(),
+}));
+
+vi.mock("./http-common.js", () => ({
+  sendGatewayAuthFailure: vi.fn(),
+}));
+
+vi.mock("./http-utils.js", () => ({
+  getBearerToken: vi.fn(),
+}));
+
+const { authorizeGatewayConnect } = await import("./auth.js");
+const { sendGatewayAuthFailure } = await import("./http-common.js");
+const { getBearerToken } = await import("./http-utils.js");
+
+describe("authorizeGatewayBearerRequestOrReply", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("disables tailscale header auth for HTTP bearer checks", async () => {
+    vi.mocked(getBearerToken).mockReturnValue(null);
+    vi.mocked(authorizeGatewayConnect).mockResolvedValue({
+      ok: false,
+      reason: "token_missing",
+    });
+
+    const ok = await authorizeGatewayBearerRequestOrReply({
+      req: {} as IncomingMessage,
+      res: {} as ServerResponse,
+      auth: {
+        mode: "token",
+        token: "secret",
+        password: undefined,
+        allowTailscale: true,
+      } satisfies ResolvedGatewayAuth,
+    });
+
+    expect(ok).toBe(false);
+    expect(vi.mocked(authorizeGatewayConnect)).toHaveBeenCalledWith(
+      expect.objectContaining({
+        allowTailscaleHeaderAuth: false,
+        connectAuth: null,
+      }),
+    );
+    expect(vi.mocked(sendGatewayAuthFailure)).toHaveBeenCalledTimes(1);
+  });
+
+  it("forwards bearer token and returns true on successful auth", async () => {
+    vi.mocked(getBearerToken).mockReturnValue("abc");
+    vi.mocked(authorizeGatewayConnect).mockResolvedValue({ ok: true, method: "token" });
+
+    const ok = await authorizeGatewayBearerRequestOrReply({
+      req: {} as IncomingMessage,
+      res: {} as ServerResponse,
+      auth: {
+        mode: "token",
+        token: "secret",
+        password: undefined,
+        allowTailscale: true,
+      } satisfies ResolvedGatewayAuth,
+    });
+
+    expect(ok).toBe(true);
+    expect(vi.mocked(authorizeGatewayConnect)).toHaveBeenCalledWith(
+      expect.objectContaining({
+        allowTailscaleHeaderAuth: false,
+        connectAuth: { token: "abc", password: "abc" },
+      }),
+    );
+    expect(vi.mocked(sendGatewayAuthFailure)).not.toHaveBeenCalled();
+  });
+});