1 | 'use strict';
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2 |
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3 | let path = require('path');
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4 | let fs = require('fs');
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5 |
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6 | let log = require('logtopus').getLogger('express-server');
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7 | let co = require('co-utils');
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8 | let fileExists = require('fs').existsSync;
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9 | let express = require('express');
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10 | let glob = require('glob');
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11 | let extend = require('node.extend');
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12 |
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13 |
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14 |
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15 | process.on('uncaughtException', function(err) {
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16 | log.error(err.name + ': ' + err.message, err.stack.replace(/.*\n/, '\n'));
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17 | console.error(err.name + ': ' + err.message, err.stack.replace(/.*\n/, '\n'));
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18 | });
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19 |
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20 | let app;
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21 |
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22 | let ExpressServer = function(conf) {
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23 | conf = conf || {};
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24 |
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25 |
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26 | this.baseDir = conf.baseDir || process.cwd();
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27 | this.publicDir = conf.publicDir || path.join(this.baseDir, 'public');
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28 |
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29 |
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30 | let serverConf = this.getConfig(conf.confDir);
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31 | conf = extend({}, serverConf, conf);
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32 | this.conf = conf;
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33 |
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34 | if (conf.logLevel) {
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35 | log.setLevel(conf.logLevel);
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36 | }
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37 | else {
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38 | log.setLevel('sys');
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39 | }
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40 |
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41 | log.sys('Set loglevel to ' + log.getLevel());
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42 |
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43 | if (this.confFile) {
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44 | log.sys('Read config file:', this.confFile);
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45 | }
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46 | else {
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47 | log.sys('No config file found!');
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48 | this._confFiles.map(function(dir) {
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49 | log.sys(' ... ' + dir);
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50 | });
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51 | }
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52 |
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53 |
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54 | this.port = conf.port || 3000;
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55 |
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56 |
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57 | this.name = conf.name || 'Express server';
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58 |
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59 |
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60 | this.apiInfo = conf.apiInfo || null;
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61 |
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62 |
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63 | if (conf.requestLog) {
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64 | this.requestLogFile = conf.requestLog === true ? path.join(this.baseDir, 'log', 'request.log') : conf.requestLog;
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65 | if (this.requestLogFile.charAt(0) === '.') {
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66 | this.requestLogFile = path.join(this.baseDir, this.requestLogFile);
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67 | }
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68 |
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69 | this.requestLogIgnore = {
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70 | contentType: null
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71 | };
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72 | }
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73 |
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74 |
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75 | if (conf.userTracking) {
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76 | this.userTracking = conf.userTracking === true ? path.join(this.baseDir, 'log', 'usertracking.log') : conf.userTracking;
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77 | if (this.userTracking.charAt(0) === '.') {
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78 | this.userTracking = path.join(this.baseDir, this.userTracking);
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79 | }
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80 | }
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81 |
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82 | this.allRoutes = [];
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83 | this.routes = [];
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84 |
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85 | app = express();
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86 | app.express = express;
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87 | app.logger = log;
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88 | app.conf = conf;
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89 | this.app = app;
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90 |
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91 | this.__context = function() {
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92 | log.warn('Using callback is deprecated! Simply return a promise if method is async');
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93 | };
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94 | };
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95 |
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96 | ExpressServer.prototype.setContext = function (ctx) {
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97 | this.__context = ctx;
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98 | };
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99 |
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100 |
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101 |
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102 |
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103 |
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104 |
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105 | ExpressServer.prototype.start = function(opts, callback) {
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106 | if (typeof opts === 'function') {
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107 | callback = opts;
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108 | opts = null;
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109 | }
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110 |
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111 | opts = opts || {
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112 | disableServer: false
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113 | };
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114 |
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115 | if (!callback) {
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116 | callback = function() {};
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117 | }
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118 |
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119 | app.addRoute = function(method, path, info, options, callback) {
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120 | log.warn('app.addRoute() was deprecated! Use default app.VERB methods instead');
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121 | if (typeof options === 'function') {
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122 | callback = options;
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123 | options = null;
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124 | }
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125 |
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126 | var fn = Array.prototype.slice.call(arguments);
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127 | while(fn.length > 0 && typeof fn[0] !== 'function') {
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128 | fn.shift();
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129 | }
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130 |
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131 | fn.unshift(path);
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132 | app[method.toLowerCase()].apply(app, fn);
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133 | this.allRoutes.push({
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134 | method: method,
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135 | path: path,
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136 | info: info,
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137 | options: options,
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138 | callback: callback
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139 | });
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140 | }.bind(this);
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141 |
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142 | log.sys('Starting ' + this.name);
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143 | log.sys(' ... environment:', app.get('env'));
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144 | log.sys(' ... set base dir to:', this.baseDir);
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145 |
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146 | app.baseDir = this.baseDir;
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147 |
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148 |
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149 | app.use('/express-server', express.static(path.join(__dirname, 'public')));
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150 |
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151 |
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152 | if (this.requestLogFile) {
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153 | log.sys(' ... log requests to:', this.requestLogFile);
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154 | app.use(this.requestLogger.bind(this));
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155 | }
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156 |
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157 |
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158 | if (true) {
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159 | app.use(require('logtopus').express({
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160 | logLevel: this.conf.logLevel
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161 | }));
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162 | }
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163 |
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164 | co(function* () {
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165 |
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166 | let envConf = path.join(this.baseDir, 'server/env', app.get('env') + '.js');
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167 | if (fileExists(envConf)) {
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168 | log.sys(' ... load environment config');
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169 | let task = require(envConf).call(this, app, this.__context);
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170 | if (task && task.then) {
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171 | yield task;
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172 | }
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173 | }
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174 | else {
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175 | log.sys(' ... no environment config found!');
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176 | }
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177 |
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178 |
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179 | let expressFile = path.join(app.baseDir, 'server/express.js');
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180 | if (fileExists(expressFile)) {
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181 | log.sys(' ... load express config');
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182 | let task = require(expressFile).call(this, app, this.__context);
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183 | if (task && task.then) {
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184 | yield task;
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185 | }
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186 | }
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187 |
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188 |
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189 | let databaseFile = path.join(app.baseDir, 'server/database.js');
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190 | if (fileExists(databaseFile)) {
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191 | log.sys(' ... load database config');
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192 | let task = require(databaseFile).call(this, app, this.__context);
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193 | if (task && task.then) {
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194 | yield task;
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195 | }
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196 | }
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197 |
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198 |
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199 | if (opts.disableRoutes !== true) {
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200 | let routesDir = path.join(this.baseDir, 'routes/**/*.js');
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201 | let files = glob.sync(routesDir);
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202 | this.routerFiles = files;
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203 | if (files.length !== 0) {
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204 | for (let file of files) {
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205 | log.sys(' ... load route file', file);
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206 | let task = require(file).call(this, app, this.__context);
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207 | if (task && task.then) {
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208 | yield task;
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209 | }
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210 | }
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211 | }
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212 | else if (this.routes.length === 0) {
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213 | log.sys(' ... no routes found');
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214 | }
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215 | }
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216 |
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217 |
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218 | if (this.routes && this.routes.length) {
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219 | this.routes.forEach(function(route) {
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220 | log.sys(' ... add route', ' '.repeat(6 - route.method.length) + route.method + ' ' + route.route);
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221 | let args = [route.route].concat(route.funcs);
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222 | this.app[route.method.toLowerCase()].apply(this.app, args);
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223 | }, this);
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224 | }
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225 |
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226 |
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227 | if (this.apiInfo) {
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228 | log.sys(' ... register api route', this.apiInfo);
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229 | let task = require(path.join(__dirname, 'routes/api')).call(this, app);
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230 | if (task && task.then) {
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231 | yield task;
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232 | }
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233 | }
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234 |
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235 |
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236 | if (this.userTracking) {
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237 | this.trackingRoute = this.trackingRoute || '/track';
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238 | log.sys(' ... track user to:', this.userTracking);
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239 | let task = require(path.join(__dirname, 'routes/tracking')).call(this, app);
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240 | if (task && task.then) {
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241 | yield task;
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242 | }
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243 | }
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244 | }.bind(this)).then(result => {
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245 | app.use(function(err, req, res, next) {
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246 | log.error(err.stack);
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247 | res.status(500).send('Something broke!\n');
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248 | });
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249 |
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250 | if (opts.disableServer !== true) {
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251 | log.sys(' ... listening on port ', this.port);
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252 | log.sys('Server started successfull!');
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253 | app.listen(this.port);
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254 | }
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255 |
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256 |
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257 | let initFile = path.join(app.baseDir, 'server/init.js');
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258 | if (fileExists(initFile)) {
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259 | require(initFile)(app, callback.bind(this, app));
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260 | }
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261 | else {
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262 | callback.call(this, app);
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263 | }
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264 | }).catch(err => {
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265 | log.error('Can\'t boot the server.');
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266 | log.error(err.stack || err);
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267 | process.exit(1);
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268 | });
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269 | };
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270 |
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271 |
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272 |
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273 |
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274 | ExpressServer.prototype.stop = function() {
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275 | log.sys('Stoping ' + this.name);
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276 | };
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277 |
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278 |
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279 |
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280 |
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281 | ExpressServer.prototype.handleJSONResult = function(err, data) {
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282 | if (err) {
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283 | log.err(err);
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284 | this.send(500, 'Something went wrong!');
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285 | return;
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286 | }
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287 |
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288 | this.json(data);
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289 | };
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290 |
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291 | ExpressServer.prototype.requestLogger = function(req, res, next) {
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292 | var startTime = Date.now(),
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293 | logFile = this.requestLogFile,
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294 | ignoreContentTypes = this.requestLogIgnore.contentType;
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295 |
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296 | var LogIt = function() {
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297 | var parseTime = Date.now() - startTime,
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298 | contentType = res.get('Content-Type') || '';
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299 |
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300 | res.removeListener('finish', LogIt);
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301 |
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302 | if (ignoreContentTypes && ignoreContentTypes.indexOf(contentType) !== -1) {
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303 | return;
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304 | }
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305 |
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306 | var data = '[' + (new Date()).toString() + ']';
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307 | data += ' ' + res.statusCode;
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308 | data += ' ' + parseTime + 'ms';
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309 | data += ' ' + req.method;
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310 | data += ' "' + req.protocol;
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311 | data += '://' + req.get('host');
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312 | data += req.originalUrl + '"';
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313 | data += ' "' + contentType + '"';
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314 | data += ' "' + req.get('user-agent') + '"';
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315 | data += ' "' + req.get('referer') + '"';
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316 | if (req.sessionID) {
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317 | data += ' (' + req.sessionID + ')';
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318 | }
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319 | data += '\n';
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320 |
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321 | fs.appendFile(logFile, data, function() {});
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322 | };
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323 |
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324 | res.on('finish', LogIt);
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325 |
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326 | next();
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327 | };
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328 |
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329 | ExpressServer.prototype.getConfig = function(confDir) {
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330 | this._confFiles = [];
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331 | var confFile = (process.env.NODE_ENV || 'development') + '.json';
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332 | if (confDir) {
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333 | this._confFiles.push(path.join(confDir, confFile));
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334 | }
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335 |
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336 | this._confFiles.push(path.join(this.baseDir, 'config', confFile));
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337 | this._confFiles.push(path.join(this.baseDir, '../config', confFile));
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338 |
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339 | for (var i = 0, len = this._confFiles.length; i < len; i++) {
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340 | if (fs.existsSync(this._confFiles[i])) {
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341 | this.confFile = this._confFiles[i];
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342 | return require(this._confFiles[i]);
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343 | }
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344 | }
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345 |
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346 | return {};
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347 | };
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348 |
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349 | ExpressServer.prototype.addRoute = function(method, route, fn) {
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350 | var funcs = Array.prototype.slice.call(arguments, 2);
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351 | this.routes.push({
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352 | method: method,
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353 | route: route,
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354 | funcs: funcs
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355 | });
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356 | };
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357 |
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358 | module.exports = ExpressServer;
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