119 lines
4.2 KiB
JavaScript
119 lines
4.2 KiB
JavaScript
"use strict";
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var __create = Object.create;
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var __defProp = Object.defineProperty;
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var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
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var __getOwnPropNames = Object.getOwnPropertyNames;
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var __getProtoOf = Object.getPrototypeOf;
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var __hasOwnProp = Object.prototype.hasOwnProperty;
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var __export = (target, all) => {
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for (var name in all)
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__defProp(target, name, { get: all[name], enumerable: true });
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};
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var __copyProps = (to, from, except, desc) => {
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if (from && typeof from === "object" || typeof from === "function") {
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for (let key of __getOwnPropNames(from))
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if (!__hasOwnProp.call(to, key) && key !== except)
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__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
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}
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return to;
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};
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var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
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// If the importer is in node compatibility mode or this is not an ESM
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// file that has been converted to a CommonJS file using a Babel-
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// compatible transform (i.e. "__esModule" has not been set), then set
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// "default" to the CommonJS "module.exports" for node compatibility.
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isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
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mod
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));
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var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
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var server_exports = {};
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__export(server_exports, {
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connect: () => connect,
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createServer: () => createServer
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});
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module.exports = __toCommonJS(server_exports);
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var import_utilsBundle = require("playwright-core/lib/utilsBundle");
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var mcpBundle = __toESM(require("./bundle"));
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const serverDebug = (0, import_utilsBundle.debug)("pw:mcp:server");
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const errorsDebug = (0, import_utilsBundle.debug)("pw:mcp:errors");
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async function connect(serverBackendFactory, transport, runHeartbeat) {
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const backend = serverBackendFactory();
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const server = createServer(backend, runHeartbeat);
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await server.connect(transport);
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}
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function createServer(backend, runHeartbeat) {
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let initializedCallback = () => {
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};
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const initializedPromise = new Promise((resolve) => initializedCallback = resolve);
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const server = new mcpBundle.Server({ name: backend.name, version: backend.version }, {
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capabilities: {
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tools: {}
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}
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});
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server.setRequestHandler(mcpBundle.ListToolsRequestSchema, async () => {
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serverDebug("listTools");
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await initializedPromise;
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const tools = await backend.listTools();
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return { tools };
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});
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let heartbeatRunning = false;
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server.setRequestHandler(mcpBundle.CallToolRequestSchema, async (request) => {
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serverDebug("callTool", request);
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await initializedPromise;
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if (runHeartbeat && !heartbeatRunning) {
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heartbeatRunning = true;
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startHeartbeat(server);
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}
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try {
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return await backend.callTool(request.params.name, request.params.arguments || {});
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} catch (error) {
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return {
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content: [{ type: "text", text: "### Result\n" + String(error) }],
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isError: true
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};
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}
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});
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addServerListener(server, "initialized", async () => {
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try {
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const capabilities = server.getClientCapabilities();
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let clientRoots = [];
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if (capabilities?.roots) {
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const { roots } = await server.listRoots(void 0, { timeout: 2e3 }).catch(() => ({ roots: [] }));
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clientRoots = roots;
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}
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const clientVersion = server.getClientVersion() ?? { name: "unknown", version: "unknown" };
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await backend.initialize?.(clientVersion, clientRoots);
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initializedCallback();
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} catch (e) {
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errorsDebug(e);
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}
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});
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addServerListener(server, "close", () => backend.serverClosed?.());
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return server;
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}
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const startHeartbeat = (server) => {
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const beat = () => {
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Promise.race([
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server.ping(),
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new Promise((_, reject) => setTimeout(() => reject(new Error("ping timeout")), 5e3))
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]).then(() => {
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setTimeout(beat, 3e3);
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}).catch(() => {
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void server.close();
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});
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};
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beat();
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};
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function addServerListener(server, event, listener) {
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const oldListener = server[`on${event}`];
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server[`on${event}`] = () => {
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oldListener?.();
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listener();
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};
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}
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// Annotate the CommonJS export names for ESM import in node:
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0 && (module.exports = {
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connect,
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createServer
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});
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