mirror of
https://github.com/NaiboWang/EasySpider.git
synced 2025-04-19 03:39:42 +08:00
291 lines
12 KiB
JavaScript
291 lines
12 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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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){ //这是比较函数
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return function(m,n){
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var a = m[p];
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var 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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fs.writeFileSync(path.join(getDir(), "config.json"), JSON.stringify({"webserver_address":"http://localhost","webserver_port":8074,"user_data_folder":"./user_data","absolute_user_data_folder":""}));
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}
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exports.getDir = getDir;
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exports.getEasySpiderLocation = getEasySpiderLocation;
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FileMimes = JSON.parse(fs.readFileSync(path.join(__dirname,'mime.json')).toString());
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exports.start = function(port = 8074) {
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http.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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if(pathName.indexOf(".") < 0) { //如果没有后缀名, 则为后台请求
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res.writeHead(200, { 'Content-Type': 'application/json' });
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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 { //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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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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req.on('data', function(chunk) {
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body += chunk;
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});
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req.on('end', function() {
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// 设置响应头部信息及编码
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if (pathName == "/queryTasks") { //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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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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"mtime": stat.mtime,
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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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output.sort(compare("mtime"));
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res.write(JSON.stringify(output));
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res.end();
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} else if (pathName == "/queryExecutionInstances") { //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(), "execution_instances"),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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res.write(JSON.stringify(output));
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res.end();
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} else if (pathName == "/queryTask") {
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var params = url.parse(req.url, true).query;
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try {
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var tid = parseInt(params.id);
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const data = fs.readFileSync(path.join(getDir(), `tasks/${tid}.json`), 'utf8');
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// parse JSON string to JSON object
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res.write(data);
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res.end();
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} catch (error) {
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res.write(JSON.stringify({ "error": "Cannot find task based on specified task ID." }));
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res.end();
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}
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} else if (pathName == "/queryExecutionInstance") {
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var params = url.parse(req.url, true).query;
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try {
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var tid = parseInt(params.id);
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const data = fs.readFileSync(path.join(getDir(), `execution_instances/${tid}.json`), 'utf8');
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// parse JSON string to JSON object
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res.write(data);
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res.end();
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} catch (error) {
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res.write(JSON.stringify({ "error": "Cannot find execution instance based on specified execution ID." }));
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res.end();
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}
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} else if(pathName == "/"){
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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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var 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(path.join(getDir(), `tasks/${tid}.json`), 'utf8');
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data = JSON.parse(data);
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data.id = -2;
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data = JSON.stringify(data);
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// write JSON string to a file
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fs.writeFile(path.join(getDir(), `tasks/${tid}.json`), data, (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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res.write(JSON.stringify({ "success": "Task has been deleted successfully." }));
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res.end();
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} catch (error) {
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res.write(JSON.stringify({ "error": "Cannot find task based on specified task ID." }));
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res.end();
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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.paras);
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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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})
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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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data = JSON.stringify(data);
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// write JSON string to a file
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fs.writeFile(path.join(getDir(), `tasks/${id}.json`), data, (err) => {});
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res.write(id.toString(), 'utf8');
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res.end();
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} else if(pathName == "/invokeTask"){
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body = querystring.parse(body);
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let data = JSON.parse(body.paras);
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let id = body.id;
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let task = fs.readFileSync(path.join(getDir(), `tasks/${id}.json`), 'utf8');
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task = JSON.parse(task);
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try{
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task["links"] = data["urlList_0"];
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}catch(error){
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console.log(error);
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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"]) { // 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) {
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node["parameters"]["value"] = value;
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} else if (node["option"] === 8 && node["parameters"]["loopType"] === 0) {
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node["parameters"]["exitCount"] = parseInt(value);
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} else if (node["option"] === 8) {
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node["parameters"]["textList"] = value;
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}
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break;
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}
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}
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}
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let file_names = [];
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fs.readdirSync(path.join(getDir(), "execution_instances")).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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console.log(file);
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} catch (error) {
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}
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})
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let eid = 0;
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if (file_names.length != 0) {
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eid = Math.max(...file_names) + 1;
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}
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task["id"] = eid;
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task = JSON.stringify(task);
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fs.writeFile(path.join(getDir(), `execution_instances/${eid}.json`), task, (err) => {});
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res.write(eid.toString(), 'utf8');
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res.end();
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} else if(pathName == "/getConfig"){
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let config = fs.readFileSync(path.join(getDir(), `config.json`), 'utf8');
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config = JSON.parse(config);
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res.write(JSON.stringify(config));
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res.end();
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} else if(pathName == "/setUserDataFolder"){
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let config = fs.readFileSync(path.join(getDir(), `config.json`), 'utf8');
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config = JSON.parse(config);
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body = querystring.parse(body);
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config["user_data_folder"] = body["user_data_folder"];
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config = JSON.stringify(config);
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fs.writeFile(path.join(getDir(), `config.json`), config, (err) => {});
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res.write(JSON.stringify({ "success": "User data folder has been set successfully." }));
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res.end();
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}
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});
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}).listen(port);
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console.log("Server has started.");
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}
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