Files
openclaw/src/canvas-host/server.test.ts
2026-03-30 08:43:37 +09:00

447 lines
14 KiB
TypeScript

import fs from "node:fs/promises";
import { createServer, type IncomingMessage } from "node:http";
import { createRequire } from "node:module";
import type { AddressInfo } from "node:net";
import os from "node:os";
import path from "node:path";
import type { Duplex } from "node:stream";
import { setTimeout as sleep } from "node:timers/promises";
import { afterAll, beforeAll, beforeEach, describe, expect, it, vi } from "vitest";
import { defaultRuntime } from "../runtime.js";
import { A2UI_PATH, CANVAS_HOST_PATH, CANVAS_WS_PATH, injectCanvasLiveReload } from "./a2ui.js";
type MockWatcher = {
on: (event: string, cb: (...args: unknown[]) => void) => MockWatcher;
close: () => Promise<void>;
__emit: (event: string, ...args: unknown[]) => void;
};
const CANVAS_RELOAD_TIMEOUT_MS = 10_000;
const CANVAS_RELOAD_TEST_TIMEOUT_MS = 20_000;
type TrackingWebSocket = {
sent: string[];
on: (event: string, cb: () => void) => TrackingWebSocket;
send: (message: string) => void;
};
function isLoopbackBindDenied(error: unknown) {
const code = (error as NodeJS.ErrnoException | undefined)?.code;
return code === "EPERM" || code === "EACCES";
}
function createMockWatcherState() {
const watchers: MockWatcher[] = [];
const createWatcher = () => {
const handlers = new Map<string, Array<(...args: unknown[]) => void>>();
const api: MockWatcher = {
on: (event: string, cb: (...args: unknown[]) => void) => {
const list = handlers.get(event) ?? [];
list.push(cb);
handlers.set(event, list);
return api;
},
close: async () => {},
__emit: (event: string, ...args: unknown[]) => {
for (const cb of handlers.get(event) ?? []) {
cb(...args);
}
},
};
watchers.push(api);
return api;
};
return {
watchers,
watchFactory: () => createWatcher(),
};
}
describe("canvas host", () => {
const quietRuntime = {
...defaultRuntime,
log: (..._args: Parameters<typeof console.log>) => {},
};
let createCanvasHostHandler: typeof import("./server.js").createCanvasHostHandler;
let startCanvasHost: typeof import("./server.js").startCanvasHost;
let realFetch: typeof import("undici").fetch;
let WebSocketServerClass: typeof import("ws").WebSocketServer;
let watcherState: ReturnType<typeof createMockWatcherState>;
let fixtureRoot = "";
let fixtureCount = 0;
const createCaseDir = async () => {
const dir = path.join(fixtureRoot, `case-${fixtureCount++}`);
await fs.mkdir(dir, { recursive: true });
return dir;
};
const startFixtureCanvasHost = async (
rootDir: string,
overrides: Partial<Parameters<typeof startCanvasHost>[0]> = {},
) =>
await startCanvasHost({
runtime: quietRuntime,
rootDir,
port: 0,
listenHost: "127.0.0.1",
allowInTests: true,
watchFactory: watcherState.watchFactory as unknown as Parameters<
typeof startCanvasHost
>[0]["watchFactory"],
webSocketServerClass: WebSocketServerClass,
...overrides,
});
const fetchCanvasHtml = async (port: number) => {
const res = await realFetch(`http://127.0.0.1:${port}${CANVAS_HOST_PATH}/`);
const html = await res.text();
return { res, html };
};
beforeAll(async () => {
vi.doUnmock("undici");
vi.resetModules();
const require = createRequire(import.meta.url);
({ createCanvasHostHandler, startCanvasHost } = await import("./server.js"));
({ fetch: realFetch } = require("undici") as typeof import("undici"));
const wsModule = await vi.importActual<typeof import("ws")>("ws");
WebSocketServerClass = wsModule.WebSocketServer;
fixtureRoot = await fs.mkdtemp(path.join(os.tmpdir(), "openclaw-canvas-fixtures-"));
});
beforeEach(() => {
vi.useRealTimers();
watcherState = createMockWatcherState();
});
afterAll(async () => {
await fs.rm(fixtureRoot, { recursive: true, force: true });
});
it("injects live reload script", () => {
const out = injectCanvasLiveReload("<html><body>Hello</body></html>");
expect(out).toContain(CANVAS_WS_PATH);
expect(out).toContain("location.reload");
expect(out).toContain("openclawCanvasA2UIAction");
expect(out).toContain("openclawSendUserAction");
});
it("creates a default index.html when missing", async () => {
const dir = await createCaseDir();
let server: Awaited<ReturnType<typeof startFixtureCanvasHost>>;
try {
server = await startFixtureCanvasHost(dir);
} catch (error) {
if (isLoopbackBindDenied(error)) {
return;
}
throw error;
}
try {
const { res, html } = await fetchCanvasHtml(server.port);
expect(res.status).toBe(200);
expect(html).toContain("Interactive test page");
expect(html).toContain("openclawSendUserAction");
expect(html).toContain(CANVAS_WS_PATH);
} finally {
await server.close();
}
});
it("skips live reload injection when disabled", async () => {
const dir = await createCaseDir();
await fs.writeFile(path.join(dir, "index.html"), "<html><body>no-reload</body></html>", "utf8");
let server: Awaited<ReturnType<typeof startFixtureCanvasHost>>;
try {
server = await startFixtureCanvasHost(dir, { liveReload: false });
} catch (error) {
if (isLoopbackBindDenied(error)) {
return;
}
throw error;
}
try {
const { res, html } = await fetchCanvasHtml(server.port);
expect(res.status).toBe(200);
expect(html).toContain("no-reload");
expect(html).not.toContain(CANVAS_WS_PATH);
const wsRes = await realFetch(`http://127.0.0.1:${server.port}${CANVAS_WS_PATH}`);
expect(wsRes.status).toBe(404);
} finally {
await server.close();
}
});
it("serves canvas content from the mounted base path and reuses handlers without double close", async () => {
const dir = await createCaseDir();
await fs.writeFile(path.join(dir, "index.html"), "<html><body>v1</body></html>", "utf8");
const handler = await createCanvasHostHandler({
runtime: quietRuntime,
rootDir: dir,
basePath: CANVAS_HOST_PATH,
allowInTests: true,
watchFactory: watcherState.watchFactory as unknown as Parameters<
typeof createCanvasHostHandler
>[0]["watchFactory"],
webSocketServerClass: WebSocketServerClass,
});
const server = createServer((req, res) => {
void (async () => {
if (await handler.handleHttpRequest(req, res)) {
return;
}
res.statusCode = 404;
res.setHeader("Content-Type", "text/plain; charset=utf-8");
res.end("Not Found");
})();
});
server.on("upgrade", (req, socket, head) => {
if (handler.handleUpgrade(req, socket, head)) {
return;
}
socket.destroy();
});
try {
await new Promise<void>((resolve, reject) => {
const onError = (error: Error) => {
server.off("listening", onListening);
reject(error);
};
const onListening = () => {
server.off("error", onError);
resolve();
};
server.once("error", onError);
server.once("listening", onListening);
server.listen(0, "127.0.0.1");
});
} catch (error) {
await handler.close();
if (isLoopbackBindDenied(error)) {
return;
}
throw error;
}
const port = (server.address() as AddressInfo).port;
try {
const res = await realFetch(`http://127.0.0.1:${port}${CANVAS_HOST_PATH}/`);
const html = await res.text();
expect(res.status).toBe(200);
expect(html).toContain("v1");
expect(html).toContain(CANVAS_WS_PATH);
const miss = await realFetch(`http://127.0.0.1:${port}/`);
expect(miss.status).toBe(404);
} finally {
await new Promise<void>((resolve, reject) =>
server.close((err) => (err ? reject(err) : resolve())),
);
}
const originalClose = handler.close;
const closeSpy = vi.fn(async () => originalClose());
handler.close = closeSpy;
const hosted = await startCanvasHost({
runtime: quietRuntime,
handler,
ownsHandler: false,
port: 0,
listenHost: "127.0.0.1",
allowInTests: true,
});
try {
expect(hosted.port).toBeGreaterThan(0);
} finally {
await hosted.close();
expect(closeSpy).not.toHaveBeenCalled();
await originalClose();
}
});
it(
"broadcasts reload on file changes",
async () => {
const dir = await createCaseDir();
const index = path.join(dir, "index.html");
await fs.writeFile(index, "<html><body>v1</body></html>", "utf8");
const watcherStart = watcherState.watchers.length;
const TrackingWebSocketServerClass = class TrackingWebSocketServer {
static latestInstance: { connectionCount: number } | undefined;
static latestSocket: TrackingWebSocket | undefined;
connectionCount = 0;
readonly handlers = new Map<string, Array<(...args: unknown[]) => void>>();
on(event: string, cb: (...args: unknown[]) => void) {
const list = this.handlers.get(event) ?? [];
list.push(cb);
this.handlers.set(event, list);
return this;
}
emit(event: string, ...args: unknown[]) {
for (const cb of this.handlers.get(event) ?? []) {
cb(...args);
}
}
handleUpgrade(
req: IncomingMessage,
socket: Duplex,
head: Buffer,
cb: (ws: TrackingWebSocket) => void,
) {
void req;
void socket;
void head;
const closeHandlers: Array<() => void> = [];
const ws: TrackingWebSocket = {
sent: [],
on: (event, handler) => {
if (event === "close") {
closeHandlers.push(handler);
}
return ws;
},
send: (message: string) => {
ws.sent.push(message);
},
};
TrackingWebSocketServerClass.latestSocket = ws;
cb(ws);
}
close(cb?: (err?: Error) => void) {
cb?.();
}
constructor(..._args: unknown[]) {
TrackingWebSocketServerClass.latestInstance = this;
this.on("connection", () => {
this.connectionCount += 1;
});
}
};
const handler = await createCanvasHostHandler({
runtime: quietRuntime,
rootDir: dir,
basePath: CANVAS_HOST_PATH,
allowInTests: true,
watchFactory: watcherState.watchFactory as unknown as Parameters<
typeof createCanvasHostHandler
>[0]["watchFactory"],
webSocketServerClass:
TrackingWebSocketServerClass as unknown as typeof import("ws").WebSocketServer,
});
try {
const watcher = watcherState.watchers[watcherStart];
expect(watcher).toBeTruthy();
const upgraded = handler.handleUpgrade(
{ url: CANVAS_WS_PATH } as IncomingMessage,
{} as Duplex,
Buffer.alloc(0),
);
expect(upgraded).toBe(true);
expect(TrackingWebSocketServerClass.latestInstance?.connectionCount).toBe(1);
const ws = TrackingWebSocketServerClass.latestSocket;
expect(ws).toBeTruthy();
const msg = new Promise<string>((resolve, reject) => {
const deadline = Date.now() + CANVAS_RELOAD_TIMEOUT_MS;
const poll = () => {
const value = ws?.sent[0];
if (value) {
resolve(value);
return;
}
if (Date.now() >= deadline) {
reject(new Error("reload timeout"));
return;
}
void sleep(10).then(poll, reject);
};
poll();
});
await fs.writeFile(index, "<html><body>v2</body></html>", "utf8");
watcher.__emit("all", "change", index);
expect(await msg).toBe("reload");
} finally {
await handler.close();
}
},
CANVAS_RELOAD_TEST_TIMEOUT_MS,
);
it("serves A2UI scaffold and blocks traversal/symlink escapes", async () => {
const dir = await createCaseDir();
const a2uiRoot = path.resolve(process.cwd(), "src/canvas-host/a2ui");
const bundlePath = path.join(a2uiRoot, "a2ui.bundle.js");
const linkName = `test-link-${Date.now()}-${Math.random().toString(16).slice(2)}.txt`;
const linkPath = path.join(a2uiRoot, linkName);
let createdBundle = false;
let createdLink = false;
let server: Awaited<ReturnType<typeof startFixtureCanvasHost>> | undefined;
try {
await fs.stat(bundlePath);
} catch {
await fs.writeFile(bundlePath, "window.openclawA2UI = {};", "utf8");
createdBundle = true;
}
await fs.symlink(path.join(process.cwd(), "package.json"), linkPath);
createdLink = true;
try {
try {
server = await startFixtureCanvasHost(dir);
} catch (error) {
if (isLoopbackBindDenied(error)) {
return;
}
throw error;
}
const res = await realFetch(`http://127.0.0.1:${server.port}/__openclaw__/a2ui/`);
const html = await res.text();
expect(res.status).toBe(200);
expect(html).toContain("openclaw-a2ui-host");
expect(html).toContain("openclawCanvasA2UIAction");
const bundleRes = await realFetch(
`http://127.0.0.1:${server.port}/__openclaw__/a2ui/a2ui.bundle.js`,
);
const js = await bundleRes.text();
expect(bundleRes.status).toBe(200);
expect(js).toContain("openclawA2UI");
const traversalRes = await realFetch(
`http://127.0.0.1:${server.port}${A2UI_PATH}/%2e%2e%2fpackage.json`,
);
expect(traversalRes.status).toBe(404);
expect(await traversalRes.text()).toBe("not found");
const symlinkRes = await realFetch(`http://127.0.0.1:${server.port}${A2UI_PATH}/${linkName}`);
expect(symlinkRes.status).toBe(404);
expect(await symlinkRes.text()).toBe("not found");
} finally {
await server?.close();
if (createdLink) {
await fs.rm(linkPath, { force: true });
}
if (createdBundle) {
await fs.rm(bundlePath, { force: true });
}
}
});
});