mirror of
https://github.com/thinkjs/thinkjs.git
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259 lines
7.1 KiB
JavaScript
259 lines
7.1 KiB
JavaScript
/**
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* 应用程序
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* @type {Object}
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*/
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var cluster = require("cluster");
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var fs = require("fs");
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var thinkHttp = thinkRequire("Http");
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var App = module.exports = Class(function(){
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//controller和action的校验正则
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var nameReg = /^[A-Za-z](\w)*$/;
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//注释的正则
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var commentReg = /((\/\/.*$)|(\/\*[\s\S]*?\*\/)|(\s))/mg;
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//获取形参的正则
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var parsReg = /^function\s*[^\(]*\(\s*([^\)]*)\)/m;
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return {
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http: null,
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init: function(http){
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this.http = http;
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},
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/**
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* 解析路由
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* @return {[type]} [description]
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*/
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dispatch: function(){
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return thinkRequire('Dispatcher')(this.http).run();
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},
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exec: function(){
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var group = this.http.group;
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var controller = '';
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var self = this;
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//检测controller名
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if (!nameReg.test(this.http.controller)) {
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controller = '';
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}else{
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controller = A(group + "/" + this.http.controller, this.http);
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}
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if (!controller) {
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var event = C('empty_controller_event');
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if (event && E(event, true).length > 0) {
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E(event, this.http.controller, group, this.http);
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return true;
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};
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return getPromise(this.http.controller + " controller not found", true);
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};
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var action = this.http.action;
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var oldAction = action;
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//添加action后缀
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action += C('action_suffix') || "";
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//检测action名
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if (!nameReg.test(action)) {
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return getPromise('action name error', true);
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};
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var initReturnPromise = getPromise(controller.__initReturn);
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//对应的action方法存在
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if (typeof controller[action] == 'function') {
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//方法参数自动绑定，直接从形参里拿到对应的值
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if (C('url_params_bind')) {
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var toString = controller[action].toString();
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toString = toString.replace(commentReg, '');
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var match = toString.match(parsReg)[1].split(/,/).filter(function(item){
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return item;
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});
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//匹配到形参
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if (match && match.length) {
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var data = [];
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match.forEach(function(item){
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var value = self.http.post[item] || self.http.get[item] || "";
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data.push(value);
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});
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return initReturnPromise.then(function(){
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return self.execAction(controller, action, oldAction, data);
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})
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}
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}
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return initReturnPromise.then(function(){
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return self.execAction(controller, action, oldAction);
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})
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}else{
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//当指定的方法不存在时，调用魔术方法
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//默认为__call方法
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if (C('call_method') && typeof controller[C('call_method')] == 'function') {
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return initReturnPromise.then(function(){
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return controller[C('call_method')](action);
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});
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};
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}
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return getPromise("action: " + action + " not found", true);
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},
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/**
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* 执行一个action, 支持before和after的统一操作
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* 不对每个action都增加一个before和after，而是使用统一的策略
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* 默认before和after调用名__before和__after
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* @param {[type]} controller [description]
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* @param {[type]} action [description]
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* @param {[type]} oldAction [description]
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* @param {[type]} data [description]
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* @return {[type]} [description]
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*/
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execAction: function(controller, action, oldAction, data){
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var promise = null;
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//before action
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var before = C('before_action_name');
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if (before && typeof controller[before] == 'function') {
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var ret = controller[before].call(controller, oldAction, action);
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promise = getPromise(ret);
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}else{
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promise = getPromise();
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}
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return promise.then(function(){
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var ret = null;
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//绑定方法参数
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if (data) {
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ret = controller[action].apply(controller, data);
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}else{
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ret = controller[action]();
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}
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return getPromise(ret);
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}).then(function(){
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//after action
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var after = C('after_action_name');
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if (after && typeof controller[after] == 'function') {
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return controller[after].call(controller, oldAction, action);
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};
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});
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}
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}
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});
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/**
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* run
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* @return {[type]} [description]
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*/
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App.run = function(){
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if (APP_MODE && App.mode[APP_MODE]) {
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return App.mode[APP_MODE]();
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};
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return App.mode._default();
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}
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/**
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* 不同模式下的run
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* @type {Object}
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*/
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App.mode = {
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//命令行模式
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cli: function(){
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var defaultHttp = thinkHttp.getDefaultHttp(APP_MODE_DATA);
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thinkHttp(defaultHttp.req, defaultHttp.res).run(App.listener);
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},
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//默认模式
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_default: function(){
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var clusterNums = C('use_cluster');
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//不使用cluster
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if (clusterNums === false) {
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return App.createServer();
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}
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if (clusterNums === 0 || clusterNums === true) {
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clusterNums = require('os').cpus().length;
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};
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if (cluster.isMaster) {
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for (var i = 0; i < clusterNums; i++) {
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cluster.fork();
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}
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cluster.on('exit', function(worker, code, signal) {
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console.log('worker ' + worker.process.pid + ' died');
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process.nextTick(function(){
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cluster.fork();
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});
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});
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}else {
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App.createServer();
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}
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}
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}
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/**
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* 创建服务
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* @return {[type]} [description]
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*/
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App.createServer = function(){
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var server = require("http").createServer(function (req, res) {
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thinkHttp(req, res).run(App.listener);
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});
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var params = [C('port')];
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//禁止外网直接通过IP访问
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if (C('deny_remote_access_by_ip')) {
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params.push("127.0.0.1");
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};
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App.webSocket(server);
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server.listen.apply(server, params);
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};
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/**
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* webSocket
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* @param {[type]} server [description]
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* @return {[type]} [description]
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*/
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App.webSocket = function(server){
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if (C('use_websocket')) {
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//暂时使用该库
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var WebSocket = require('faye-websocket');
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server.on("upgrade", function(request, socket, body){
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if (WebSocket.isWebSocket(request)) {
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var ws = new WebSocket(request, socket, body);
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ws.on('message', function(event) {
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var urlInfo = require("url").parse(event.target.url, true, true);
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var data = JSON.parse(event.data || "{}");
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var defaultHttp = thinkHttp.getDefaultHttp(extend(data, {
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host: urlInfo.hostname,
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write: function(data){
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ws && ws.send(JSON.stringify(data));
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},
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end: function(){
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ws && ws.close();
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}
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}));
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thinkHttp(defaultHttp.req, defaultHttp.res).run(App.listener)
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});
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ws.on('close', function(event){
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ws = null;
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});
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}
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})
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};
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}
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/**
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* 监听回调函数
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* @param {[type]} http [description]
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* @return {[type]} [description]
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*/
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App.listener = function(http){
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//自动发送thinkjs和版本的header
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http.setHeader("X-Powered-By", "thinkjs-" + THINK_VERSION);
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//初始化Session
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if (C('session_auto_start')) {
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thinkRequire('Session').start(http);
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};
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var instance = App(http);
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return tag ('app_init', http).then(function(){
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return instance.dispatch();
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}).then(function(){
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return tag('app_begin', http);
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}).then(function(){
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return tag('action_init', http);
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}).then(function(){
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return instance.exec();
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}).then(function(){
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return tag('app_end', http);
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}).catch(function(err){
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console.log(isError(err) ? err.stack : err);
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if (http.res) {
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http.setHeader('Content-Type', 'text/html; charset=' + C('encoding'));
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var readStream = fs.createReadStream(C('error_tpl_path'));
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readStream.pipe(http.res);
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readStream.on("end", function(){
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http.res.end();
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})
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};
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});
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} |