mirror of
https://github.com/NaiboWang/EasySpider.git
synced 2026-05-07 06:30:57 +08:00
900 lines
33 KiB
JavaScript
900 lines
33 KiB
JavaScript
const http = require("http");
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const querystring = require("querystring");
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const url = require("url");
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const fs = require("fs");
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const path = require("path");
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const { app, dialog } = require("electron");
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const XLSX = require("xlsx");
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const formidable = require("formidable");
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const express = require("express");
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const multer = require("multer");
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const cors = require("cors");
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const { param } = require("express/lib/router");
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const http_request = require('http'); // 用于发送请求
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const { generateKey } = require("crypto");
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function travel(dir, callback) {
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fs.readdirSync(dir).forEach((file) => {
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const pathname = path.join(dir, file);
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if (fs.statSync(pathname).isDirectory()) {
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travel(pathname, callback);
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} else {
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callback(pathname);
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}
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});
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}
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function compare(p) {
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//这是比较函数
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return function (m, n) {
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let a = m[p];
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let b = n[p];
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return b - a; //降序
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};
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}
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function getDir() {
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if (__dirname.indexOf("app") >= 0 && __dirname.indexOf("sources") >= 0) {
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if (process.platform == "darwin") {
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return app.getPath("userData");
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} else {
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return path.join(__dirname, "../../..");
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}
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} else {
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return __dirname;
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}
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}
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function getEasySpiderLocation() {
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if (__dirname.indexOf("app") >= 0 && __dirname.indexOf("sources") >= 0) {
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if (process.platform == "darwin") {
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return path.join(__dirname, "../../../");
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} else {
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return path.join(__dirname, "../../../");
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}
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} else {
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return __dirname;
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}
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}
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if (!fs.existsSync(path.join(getDir(), "tasks"))) {
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fs.mkdirSync(path.join(getDir(), "tasks"));
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}
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if (!fs.existsSync(path.join(getDir(), "execution_instances"))) {
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fs.mkdirSync(path.join(getDir(), "execution_instances"));
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}
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if (!fs.existsSync(path.join(getDir(), "config.json"))) {
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// Generate config.json
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fs.writeFileSync(
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path.join(getDir(), "config.json"),
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JSON.stringify({
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webserver_address: "http://localhost",
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webserver_port: 8074,
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user_data_folder: "./user_data",
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debug: false,
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lang: "-",
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copyright: 0,
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sys_arch: require("os").arch(),
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mysql_config_path: "./mysql_config.json",
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absolute_user_data_folder:
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"D:\\Document\\Projects\\EasySpider\\ElectronJS\\user_data",
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})
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);
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}
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let child_processes = {};
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let child_logs = {};
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let config = fs.readFileSync(
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path.join(getDir(), `config.json`),
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"utf8"
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);
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config = JSON.parse(config);
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exports.getDir = getDir;
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exports.getEasySpiderLocation = getEasySpiderLocation;
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FileMimes = JSON.parse(
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fs.readFileSync(path.join(__dirname, "mime.json")).toString()
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);
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const fileServer = express();
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const upload = multer({ dest: path.join(getDir(), "Data/") });
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fileServer.use(cors());
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fileServer.post("/excelUpload", upload.single("file"), (req, res) => {
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let workbook = XLSX.readFile(req.file.path);
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let sheet_name_list = workbook.SheetNames;
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let data = XLSX.utils.sheet_to_json(workbook.Sheets[sheet_name_list[0]]);
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let result = data.reduce((acc, obj) => {
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Object.keys(obj).forEach((key) => {
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if (!acc[key]) {
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acc[key] = [];
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}
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acc[key].push(obj[key]);
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});
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return acc;
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}, {});
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// console.log(data);
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// delete file after reading
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fs.unlink(req.file.path, (err) => {
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if (err) {
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console.error(err);
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return;
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}
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// file removed
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});
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res.send(JSON.stringify(result));
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});
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fileServer.listen(8075, () => {
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console.log("Server listening on http://localhost:8075");
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});
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/**
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* Write single data and success header to a response and end the response.
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* @param {Response} res default response object
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* @param {any} data response data
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* @param {number} statusCode response status code
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* @param {string} contentType response content type
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*/
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function writeAndEnd(res, data, statusCode = 200, contentType = 'application/json') {
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res.writeHead(statusCode, { 'Content-Type': contentType });
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res.write(data);
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res.end();
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}
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/**
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* Write a success response with JSON content type.
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* @param {Response} res default response object
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* @param {any} data response data
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* @param {string} successMessage success message(optional)
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*/
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function writeSuccess(res, data, successMessage = "") {
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// Write a success response with JSON content type
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writeAndEnd(res, JSON.stringify({ success: successMessage, status: true, ...data}), 200, 'application/json');
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}
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/**
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* Write an error response with JSON content type.
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* @param {Response} res default response object
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* @param {number} errorCode error code
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* @param {string} errorMessage error message(optional)
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*/
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function writeError(res, errorCode, errorMessage="Internal Server Error") {
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// Write an error response with JSON content type
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writeAndEnd(res, JSON.stringify({ error: errorMessage, status: false }), errorCode, 'application/json');
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}
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function generateUuid() {
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var s = [];
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var hexDigits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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for (var i = 0; i < 36; i++) {
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s[i] = hexDigits.substr(Math.floor(Math.random() * 0x10), 1)
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}
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s[14] = "4"
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s[19] = hexDigits.substr((s[19] & 0x3) | 0x8, 1)
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s[8] = s[13] = s[18] = s[23] = "-"
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let uuid = s.join("")
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return uuid
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}
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// When error occurs in the handler, it will be caught and logged, and a 500 response will be sent if headers have not been sent yet.
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// This is useful to prevent the server from crashing due to unhandled exceptions in the request handlers
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function safeHandler(handler, res) {
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return (...args) => {
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try {
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handler(...args);
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} catch (err) {
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console.error("Error handling request:", err);
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if (!res.headersSent) {
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res.writeHead(500, { 'Content-Type': 'text/plain' });
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if (process.env.NODE_ENV === 'development') {
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res.end(`Internal Server Error: \n${err.stack}`);
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} else {
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res.end("Internal Server Error");
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}
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}
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}
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};
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}
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exports.start = function (port = 8074) {
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http
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.createServer(function (req, res) {
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let body = "";
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res.setHeader("Access-Control-Allow-Origin", "*"); // 设置可访问的源
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// 解析参数
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const pathName = url.parse(req.url).pathname;
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const safeBase = path.join(__dirname, "src");
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const safeJoin = (base, target) => {
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const targetPath = "." + path.posix.normalize("/" + target);
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return path.join(base, targetPath);
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};
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if (pathName == "/excelUpload" && req.method.toLowerCase() === "post") {
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// // parse a file upload
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// let form = new formidable.IncomingForm();
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// // Set the max file size
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// form.maxFileSize = 200 * 1024 * 1024; // 200MB
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// form.parse(req, function (err, fields, files) {
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// console.log("excelUpload")
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// console.log(err, fields, files);
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// let oldpath = files.file.path;
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// let workbook = XLSX.readFile(oldpath);
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// let sheet_name_list = workbook.SheetNames;
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// let data = XLSX.utils.sheet_to_json(workbook.Sheets[sheet_name_list[0]]);
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// console.log(data);
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// res.end('File uploaded and read successfully.');
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// });
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}
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// else if(pathName.indexOf("index.html") >= 0) {
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// fs.readFile(path.join(__dirname,"src", pathName), async (err, data) => {
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// if (err) {
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// res.writeHead(404, { 'Content-Type': 'text/html;charset="utf-8"' })
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// res.end(err.message)
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// return;
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// }
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// if (!err) {
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// // 3. 针对不同的文件返回不同的内容头
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// let extname = path.extname(pathName);
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// let mime = FileMimes[extname]
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// res.writeHead(200, { 'Content-Type': mime + ';charset="utf-8"' })
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// res.end(data);
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// return;
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// }
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// })
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// }
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else if (pathName.indexOf(".") >= 0) {
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//如果有后缀名, 则为前端请求
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// console.log(path.join(__dirname,"src/taskGrid", pathName));
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const filePath = safeJoin(safeBase, pathName);
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if (!filePath.startsWith(safeBase)) {
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res.writeHead(400, { "Content-Type": 'text/html;charset="utf-8"' });
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res.end("Invalid path");
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return;
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}
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fs.readFile(
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filePath,
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async (err, data) => {
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if (err) {
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res.writeHead(404, {
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"Content-Type": 'text/html;charset="utf-8"',
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});
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res.end(err.message);
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return;
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}
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if (!err) {
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// 3. 针对不同的文件返回不同的内容头
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let extname = path.extname(pathName);
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let mime = FileMimes[extname];
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res.writeHead(200, { "Content-Type": mime + ';charset="utf-8"' });
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res.end(data);
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return;
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}
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}
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);
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}
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req.on("data", function (chunk) {
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body += chunk;
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});
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req.on("end", safeHandler(() => {
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// 设置响应头部信息及编码
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if (pathName == "/queryTasks") {
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//查询所有服务信息，只包括id和服务名称
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output = [];
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travel(path.join(getDir(), "tasks"), function (pathname) {
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const data = fs.readFileSync(pathname, "utf8");
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let stat = fs.statSync(pathname, "utf8");
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// parse JSON string to JSON object
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// console.log("\n\n\n\n\n", pathname, '\n\n\n\n\n\n');
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if (pathname.indexOf(".json") >= 0) {
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const task = JSON.parse(data);
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let item = {
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id: task.id,
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name: task.name,
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url: task.links.split("\n")[0],
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mtime: stat.mtime,
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links: task.links,
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desc: task.desc,
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};
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if (item.id != -2) {
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output.push(item);
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}
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}
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});
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output.sort(compare("mtime"));
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// 只修改外层为 {} 的响应增加 status 字段，其他响应不变，否则就和之前不兼容了
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res.writeHead(200, { "Content-Type": "application/json" });
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res.write(JSON.stringify(output));
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res.end();
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} else if (pathName == "/queryOSVersion") {
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res.writeHead(200, { "Content-Type": "application/json" });
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res.write(
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JSON.stringify({ version: process.platform, bit: process.arch })
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);
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res.end();
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} else if (pathName == "/queryExecutionInstances") {
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//查询所有服务信息，只包括id和服务名称
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output = [];
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travel(
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path.join(getDir(), "execution_instances"),
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function (pathname) {
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const data = fs.readFileSync(pathname, "utf8");
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// parse JSON string to JSON object
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const task = JSON.parse(data);
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let item = {
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id: task.id,
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name: task.name,
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url: task.url,
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};
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if (item.id != -2) {
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output.push(item);
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}
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}
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);
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res.writeHead(200, { "Content-Type": "application/json" });
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res.write(JSON.stringify(output));
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res.end();
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} else if (pathName == "/queryTask") {
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let params = url.parse(req.url, true).query;
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try {
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let tid = parseInt(params.id);
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const data = fs.readFileSync(
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path.join(getDir(), `tasks/${tid}.json`),
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"utf8"
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);
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// parse JSON string to JSON object
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res.writeHead(200, { "Content-Type": "application/json" });
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res.write(data);
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res.end();
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} catch (error) {
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writeError(res, 404, "Cannot find task based on specified task ID.");
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}
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} else if (pathName == "/queryExecutionInstance") {
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let params = url.parse(req.url, true).query;
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try {
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let tid = parseInt(params.id);
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const data = fs.readFileSync(
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path.join(getDir(), `execution_instances/${tid}.json`),
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"utf8"
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);
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// parse JSON string to JSON object
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res.writeHead(200, { "Content-Type": "application/json" });
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res.write(data);
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res.end();
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} catch (error) {
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writeError(res, 404, "Cannot find execution instance based on specified execution ID.");
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}
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} else if (pathName == "/") {
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res.writeHead(200, { "Content-Type": "text/plain" });
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res.write("Hello World!", "utf8");
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res.end();
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} else if (pathName == "/deleteTask") {
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let params = url.parse(req.url, true).query;
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try {
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let tid = parseInt(params.id);
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let data = fs.readFileSync(
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path.join(getDir(), `tasks/${tid}.json`),
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"utf8"
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);
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data = JSON.parse(data);
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data.id = -2;
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data = JSON.stringify(data);
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// write JSON string to a file
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fs.writeFile(
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path.join(getDir(), `tasks/${tid}.json`),
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data,
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(err) => {
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if (err) {
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throw err;
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}
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}
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);
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writeSuccess(res, {}, "Task has been deleted successfully.");
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} catch (error) {
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writeError(res, 404, "Cannot find task based on specified task ID.")
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}
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} else if (pathName == "/manageTask") {
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body = querystring.parse(body);
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data = JSON.parse(body.params);
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let id = data["id"];
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if (data["id"] == -1) {
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file_names = [];
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fs.readdirSync(path.join(getDir(), "tasks")).forEach((file) => {
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try {
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if (file.split(".")[1] == "json") {
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file_names.push(parseInt(file.split(".")[0]));
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}
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} catch (error) {}
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});
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if (file_names.length == 0) {
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id = 0;
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} else {
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id = Math.max(...file_names) + 1;
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}
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data["id"] = id;
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// write JSON string to a fil
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}
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if (data["outputFormat"] == "mysql") {
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let mysql_config_path = path.join(getDir(), "mysql_config.json");
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// 检测文件是否存在
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fs.access(mysql_config_path, fs.F_OK, (err) => {
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if (err) {
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console.log("File does not exist. Creating...");
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// 文件不存在，创建文件
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const config = {
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host: "localhost",
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port: 3306,
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username: "your_username",
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password: "your_password",
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database: "your_database",
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};
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fs.writeFile(
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mysql_config_path,
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JSON.stringify(config, null, 4),
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(err) => {
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if (err) throw err;
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console.log("File is created successfully.");
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}
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);
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} else {
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console.log("File exists.");
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}
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});
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}
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data = JSON.stringify(data);
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// write JSON string to a file
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fs.writeFile(
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path.join(getDir(), `tasks/${id}.json`),
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data,
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(err) => {}
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);
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res.writeHead(200, { "Content-Type": "text/plain" });
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res.write(id.toString(), "utf8");
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res.end();
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} else if (pathName == "/invokeTask") {
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body = querystring.parse(body);
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let data;
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if (body.params === undefined || body.params == "") {
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data = {};
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} else {
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try{
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data = JSON.parse(body.params);
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} catch (error) {
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console.error(error);
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writeError(res, 400, "Fail to parse parameters from json string.");
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return;
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}
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}
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let id = body.id;
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if (id === undefined || id == "") {
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writeError(res, 400, "Task ID is required.");
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return;
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}
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let task = fs.readFileSync(
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path.join(getDir(), `tasks/${id}.json`),
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"utf8"
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);
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task = JSON.parse(task);
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// 允许不填写 urlList_0，此时采用任务中的默认值
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if (data["urlList_0"] !== undefined && data["urlList_0"] != "") {
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try {
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task["links"] = data["urlList_0"];
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} catch (error) {
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}
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}
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for (const [key, value] of Object.entries(data)) {
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for (let i = 0; i < task["inputParameters"].length; i++) {
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if (key === task["inputParameters"][i]["name"]) {
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// 能调用
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const nodeId = parseInt(task["inputParameters"][i]["nodeId"]);
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const node = task["graph"][nodeId];
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if (node["option"] === 1) {
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node["parameters"]["links"] = value;
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} else if (node["option"] === 4) {
|
||
node["parameters"]["value"] = value;
|
||
} else if (
|
||
node["option"] === 8 &&
|
||
node["parameters"]["loopType"] === 0
|
||
) {
|
||
node["parameters"]["exitCount"] = parseInt(value);
|
||
} else if (node["option"] === 8) {
|
||
node["parameters"]["textList"] = value;
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
let file_names = [];
|
||
fs.readdirSync(path.join(getDir(), "execution_instances")).forEach(
|
||
(file) => {
|
||
try {
|
||
if (file.split(".")[1] == "json") {
|
||
file_names.push(parseInt(file.split(".")[0]));
|
||
}
|
||
console.log(file);
|
||
} catch (error) {
|
||
console.error(error);
|
||
}
|
||
}
|
||
);
|
||
let eid = 0;
|
||
if (file_names.length != 0) {
|
||
eid = Math.max(...file_names) + 1;
|
||
}
|
||
if (body["EID"] != "" && body["EID"] != undefined) {
|
||
//覆盖原有的执行实例
|
||
eid = parseInt(body["EID"]);
|
||
}
|
||
task["id"] = eid;
|
||
task = JSON.stringify(task);
|
||
fs.writeFile(
|
||
path.join(getDir(), `execution_instances/${eid}.json`),
|
||
task,
|
||
(err) => {}
|
||
);
|
||
console.log(`Task ${id} has been generated to file ${path.join(getDir(), `execution_instances/${eid}.json`)}`);
|
||
// res.writeHead
|
||
res.writeHead(200, { "Content-Type": "text/plain" });
|
||
res.write(eid.toString(), "utf8");
|
||
res.end();
|
||
} else if (pathName == "/getConfig") {
|
||
let config_file = fs.readFileSync(
|
||
path.join(getDir(), `config.json`),
|
||
"utf8"
|
||
);
|
||
config_file = JSON.parse(config_file);
|
||
let lang = config_file["lang"];
|
||
if(lang == undefined){
|
||
lang = "-";
|
||
}
|
||
res.writeHead(200, { "Content-Type": "application/json" });
|
||
res.write(JSON.stringify(config_file));
|
||
res.end();
|
||
} else if (pathName == "/setUserDataFolder") {
|
||
let config = fs.readFileSync(
|
||
path.join(getDir(), `config.json`),
|
||
"utf8"
|
||
);
|
||
config = JSON.parse(config);
|
||
body = querystring.parse(body);
|
||
config["user_data_folder"] = body["user_data_folder"];
|
||
config = JSON.stringify(config);
|
||
fs.writeFile(path.join(getDir(), `config.json`), config, (err) => {});
|
||
writeSuccess(res, {}, "User data folder has been set successfully.");
|
||
} else if (pathName == "/executeTask") {
|
||
body = querystring.parse(body);
|
||
if (body === undefined || body.id === undefined || body.id == "") {
|
||
writeError(res, 400, "Execution instance ID is required.");
|
||
return;
|
||
}
|
||
let timeout = 10;
|
||
if (body.timeout !== undefined && body.timeout != "") {
|
||
try{
|
||
timeout = parseInt(body.timeout);
|
||
} catch (error) {
|
||
writeError(res, 400, "Timeout must be a number.");
|
||
return;
|
||
}
|
||
}
|
||
// 1. Find executable path
|
||
let platform_dir = "";
|
||
let executable_name = "easyspider_executestage";
|
||
|
||
if (process.platform === "win32" && process.arch === "x64") {
|
||
platform_dir = "chrome_win64";
|
||
executable_name += ".exe";
|
||
} else if (process.platform === "win32" && process.arch === "ia32") {
|
||
platform_dir = "chrome_win32";
|
||
executable_name += ".exe";
|
||
} else if (process.platform === "linux") {
|
||
platform_dir = "chrome_linux64";
|
||
} else if (process.platform === "darwin") {
|
||
writeError(res, 400, "Executing from remote control is not supported on macOS.");
|
||
return;
|
||
}
|
||
|
||
const dev_executable_path = path.join(__dirname, platform_dir, executable_name);
|
||
const packaged_executable_path = path.join(getEasySpiderLocation(), 'resources', 'app', platform_dir, executable_name);
|
||
let executable_path = "";
|
||
|
||
if (fs.existsSync(dev_executable_path)) {
|
||
executable_path = dev_executable_path;
|
||
console.log("Using development executable path:", executable_path);
|
||
} else if (fs.existsSync(packaged_executable_path)) {
|
||
executable_path = packaged_executable_path;
|
||
}
|
||
|
||
if (executable_path === "") {
|
||
writeError(res, 500, "Could not find the executable for this platform.");
|
||
return;
|
||
}
|
||
|
||
if (body.use_user_data == "true" || body.use_user_data == "1") {
|
||
body.use_user_data = 1;
|
||
} else {
|
||
body.use_user_data = 0;
|
||
}
|
||
try{
|
||
body.id = JSON.parse(body.id);
|
||
} catch (error) {
|
||
writeError(res, 400, "Fail to parse execution instance ID from json string.");
|
||
}
|
||
if (Array.isArray(body.id)) {
|
||
console.log("Multiple execution instances detected.");
|
||
let not_found = [];
|
||
for (let i = 0; i < body.id.length; i++) {
|
||
try{
|
||
// 尝试读取一次任务文件
|
||
let eid = parseInt(body.id[i]);
|
||
let file = fs.readFileSync(
|
||
path.join(getDir(), `execution_instances/${eid}.json`),
|
||
"utf8"
|
||
);
|
||
let task = JSON.parse(file);
|
||
// 忽略逻辑删除的任务
|
||
if (task == undefined || task.id == -2) {
|
||
console.log(`${eid} not found.`)
|
||
not_found.push(eid);
|
||
}
|
||
} catch (error) {
|
||
not_found.push(body.id[i]);
|
||
}
|
||
}
|
||
if (not_found.length > 0) {
|
||
writeError(res, 404, `Cannot find execution instances based on specified execution IDs: ${not_found.join(", ")}`);
|
||
return;
|
||
}
|
||
for (let i = 0; i < body.id.length; i++) {
|
||
if (child_processes[body.id[i]] != null) {
|
||
writeError(res, 400, `Execution instance ${body.id[i]} is already running. If you want to run it again, please stop the current execution instance first.`);
|
||
return;
|
||
}
|
||
}
|
||
} else {
|
||
try{
|
||
// 尝试读取一次任务文件
|
||
let eid = parseInt(body.id);
|
||
let file = fs.readFileSync(
|
||
path.join(getDir(), `execution_instances/${eid}.json`),
|
||
"utf8"
|
||
);
|
||
let task = JSON.parse(file);
|
||
// 忽略逻辑删除的任务
|
||
if (task == undefined || task.id == -2) {
|
||
writeError(res, 404, "Cannot find execution instance based on specified execution ID.");
|
||
return;
|
||
}
|
||
} catch (error) {
|
||
writeError(res, 404, "Cannot find execution instance based on specified execution ID.");
|
||
return;
|
||
}
|
||
if (child_processes[body.id] != null) {
|
||
writeError(res, 400, `Execution instance ${body.id} is already running. If you want to run it again, please stop the current execution instance first.`);
|
||
return;
|
||
}
|
||
}
|
||
let config;
|
||
try{
|
||
config = fs.readFileSync(
|
||
path.join(getDir(), `config.json`),
|
||
"utf8"
|
||
);
|
||
config = JSON.parse(config);
|
||
} catch (error) {
|
||
writeError(res, 500, "Fail to parse config.json.");
|
||
return;
|
||
}
|
||
let ids_string;
|
||
if (Array.isArray(body.id)) {
|
||
// 多个执行实例
|
||
ids_string = body.id.join(",");
|
||
for (let i = 0; i < body.id.length; i++) {
|
||
child_logs[body.id[i]] = ""; // 初始化日志
|
||
}
|
||
} else {
|
||
ids_string = body.id;
|
||
child_logs[body.id] = ""; // 初始化日志
|
||
}
|
||
console.log(`Executing task with IDs: ${ids_string}`);
|
||
let spawn = require("child_process").spawn;
|
||
let server_address = `${config.webserver_address}:${config.webserver_port}`;
|
||
let secret_key = generateUuid(); // 生成一个随机的密钥
|
||
let parameters = [
|
||
"--ids",
|
||
"[" + ids_string + "]",
|
||
"--server_address",
|
||
server_address,
|
||
"--user_data",
|
||
body.use_user_data.toString(),
|
||
"--remote_control",
|
||
"1",
|
||
"--remote_control_key",
|
||
secret_key,
|
||
];
|
||
const child_process = spawn(
|
||
executable_path,
|
||
parameters,
|
||
{ detached: false, env: { ...process.env, 'PYTHONUNBUFFERED': '1', 'PYTHONUTF8': '1'} } // 设置环境变量，强制 utf-8 输出
|
||
);
|
||
if (!child_process.pid) {
|
||
writeError(res, 500, "Failed to start the child process and get its PID.");
|
||
return;
|
||
}
|
||
console.log(`Started child process with PID: ${child_process.pid}`);
|
||
|
||
let ipc_port_captured = false;
|
||
child_process.stdout.on("data", (data) => {
|
||
const output = data.toString();
|
||
console.log(`[PID ${child_process.pid}] stdout: ${output}`);
|
||
if (Array.isArray(body.id)) {
|
||
for (let i = 0; i < body.id.length; i++) {
|
||
child_logs[body.id[i]] = (child_logs[body.id[i]] || "") + output;
|
||
}
|
||
} else {
|
||
child_logs[body.id] = (child_logs[body.id] || "") + output;
|
||
}
|
||
|
||
const match = output.match(/IPC_SERVER_PORT:(\d+)/);
|
||
if (match && match[1]) {
|
||
const ipc_port = parseInt(match[1], 10);
|
||
console.log(`Captured IPC port ${ipc_port} for PID ${child_process.pid}`);
|
||
|
||
// 存储进程信息
|
||
const process_info = {
|
||
pid: child_process.pid,
|
||
ipc_port: ipc_port,
|
||
process: child_process,
|
||
key: secret_key,
|
||
};
|
||
if (Array.isArray(body.id)) {
|
||
for (let i = 0; i < body.id.length; i++) {
|
||
child_processes[body.id[i]] = process_info;
|
||
}
|
||
} else {
|
||
child_processes[body.id] = process_info;
|
||
}
|
||
|
||
if (!ipc_port_captured) {
|
||
ipc_port_captured = true;
|
||
writeSuccess(res, {message: `Task execution started successfully for ID(s): ${ids_string}`});
|
||
}
|
||
}
|
||
});
|
||
|
||
child_process.stderr.on("data", (data) => {
|
||
console.error(`[PID ${child_process.pid}] stderr: ${data.toString()}`);
|
||
});
|
||
|
||
child_process.on('close', (code) => {
|
||
console.log(`Child process with PID ${child_process.pid} exited with code ${code}`);
|
||
// 清理记录
|
||
for (const id in child_processes) {
|
||
if (child_processes[id].pid === child_process.pid) {
|
||
delete child_processes[id];
|
||
}
|
||
}
|
||
});
|
||
|
||
// 添加一个超时，以防Python脚本未能成功启动IPC服务器
|
||
setTimeout(() => {
|
||
if (!ipc_port_captured) {
|
||
writeError(res, 500, "Failed to get IPC port from child process within timeout.");
|
||
child_process.kill('SIGKILL'); // 强制杀死没有响应的进程
|
||
}
|
||
}, timeout * 1000); // 5秒超时
|
||
} else if (pathName == "/stopTask") {
|
||
body = querystring.parse(body);
|
||
if (!body.id) {
|
||
writeError(res, 400, "Execution instance ID is required to stop a task.");
|
||
return;
|
||
}
|
||
|
||
const process_info = child_processes[body.id];
|
||
if (!process_info || !process_info.ipc_port) {
|
||
writeError(res, 404, `No running process found for execution instance ID: ${body.id}. It might have already finished.`);
|
||
return;
|
||
}
|
||
|
||
const options = {
|
||
hostname: '127.0.0.1',
|
||
port: process_info.ipc_port,
|
||
path: '/shutdown',
|
||
method: 'GET',
|
||
headers: {
|
||
'Authorization': process_info.key, // 使用之前生成的密钥进行身份验证
|
||
}
|
||
};
|
||
|
||
console.log(`Sending shutdown command to http://localhost:${process_info.ipc_port}/shutdown`);
|
||
|
||
const req = http_request.request(options, (api_res) => {
|
||
if (api_res.statusCode === 200) {
|
||
writeSuccess(res, { message: `Shutdown command sent successfully to task ID ${body.id}.` });
|
||
} else {
|
||
writeError(res, 500, `IPC server responded with status: ${api_res.statusCode}`);
|
||
}
|
||
});
|
||
|
||
req.on('error', (e) => {
|
||
console.error(`Problem with request to IPC server: ${e.stack}`);
|
||
writeError(res, 500, "Failed to send command to the task process. It might have crashed.");
|
||
});
|
||
|
||
req.end();
|
||
|
||
} else if (pathName == "/getTaskLog") {
|
||
let params = url.parse(req.url, true).query;
|
||
if (params === undefined || params.id === undefined || params.id == "") {
|
||
writeError(res, 400, "Execution instance ID is required.");
|
||
return;
|
||
}
|
||
let id = params.id;
|
||
const process_info = child_processes[id];
|
||
if (process_info && process_info.ipc_port) {
|
||
// 进程正在运行，直接读取日志
|
||
writeSuccess(res, { log: child_logs[id] || "" });
|
||
return;
|
||
}
|
||
// 进程没有运行，则读取日志文件
|
||
// 列出 Data/Task_${id} 目录下的所有文件
|
||
let logFileFolder = path.join(getDir(), `Data/Task_${id}`);
|
||
// 列出目录下的所有文件，返回名称为 *.log 的文件
|
||
let logFilePath = "";
|
||
let logFileName = "";
|
||
fs.readdir(logFileFolder, (err, files) => {
|
||
if (err) {
|
||
console.error(err);
|
||
writeError(res, 400, "Log file does not exist.");
|
||
return;
|
||
}
|
||
// 查找以 .log 结尾的文件
|
||
files.forEach((file) => {
|
||
if (file.endsWith(".log")) {
|
||
let p = path.join(logFileFolder, file);
|
||
if (file > logFileName) {
|
||
// 取最新的日志文件
|
||
logFilePath = p;
|
||
logFileName = file;
|
||
}
|
||
}
|
||
});
|
||
if (logFilePath === "") {
|
||
writeError(res, 404, "Log file not found.");
|
||
return;
|
||
}
|
||
fs.readFile(logFilePath, "utf8", (err, data) => {
|
||
if (err) {
|
||
console.error(err);
|
||
writeError(res, 500, "Failed to read log file.");
|
||
return;
|
||
}
|
||
// 缓存日志
|
||
writeSuccess(res, { log: data });
|
||
});
|
||
})
|
||
} else if (pathName == "/getTaskStatus"){
|
||
let params = url.parse(req.url, true).query;
|
||
if (params === undefined || params.id === undefined || params.id == "") {
|
||
writeError(res, 400, "Execution instance ID is required.");
|
||
return;
|
||
}
|
||
let id = params.id;
|
||
const process_info = child_processes[id];
|
||
if (process_info && process_info.ipc_port) {
|
||
// 进程正在运行，直接读取日志
|
||
writeSuccess(res, { running: true });
|
||
} else {
|
||
writeSuccess(res, { running: false })
|
||
}
|
||
}
|
||
}, res));
|
||
})
|
||
.listen(port);
|
||
console.log("Server has started.");
|
||
};
|