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app.js
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app.js
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var fs = require('fs');
var path = require('path');
var express = require('express');
var favicon = require('serve-favicon');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var session = require('express-session');
var log4js = require('log4js');
var logger = log4js.getLogger('app');
var mustache = require('mustache');
var routes = require('./routes/index');
var systemConfig = require('./config/system');
var i18n = require('./i18n');
var store = require('./common/redis-service').getSessionStore();
var app = express();
app.set('env', 'development');
app.set('views', path.resolve(__dirname, './views'));
// view set to store templates
var views = {};
// define the template engine
app.engine('html', function (filePath, options, callback) {
var tpl = views[filePath];
if (tpl) {
return callback(null, mustache.render(tpl, options));
}
fs.readFile(filePath, function (err, content) {
if (err) {
return callback(new Error(err));
}
content = content + '';
views[filePath] = content;
return callback(null, mustache.render(content, options));
});
});
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'html');
app.use(log4js.connectLogger(logger, {level: 'auto'}));
app.use(bodyParser.json({limit: (systemConfig.formPayloadLimit || '1mb')}));
app.use(bodyParser.urlencoded({ extended: false, limit: (systemConfig.userFileSizeLimit || '20mb')}));
var INFINITE_TIME = 1000 * 365 * 24 * 60 * 10;
var SESSION_MAX_AGE = 60 * 1000 * (function(maxAge) {
if (maxAge === 'infinite') {
return INFINITE_TIME;
}
return parseInt(maxAge) || 30;
})(systemConfig.sessionMaxAge);
var sessConf = {
name: 'signed_token',
secret: 'b0dh!-p0rta1',
store: store,
resave: false,
saveUninitialized: false,
cookie: {
path: '/',
httpOnly: true,
secure: false,
maxAge: SESSION_MAX_AGE
}
};
if (systemConfig.firstLevelDomain) {
sessConf.domain = systemConfig.firstLevelDomain;
console.log('Effective Domain:', systemConfig.firstLevelDomain);
} else {
logger.error('The fristLevelDomain must be specified in config/system.js! Ohterwise the apps accessed by this portal will not work properly!');
logger.error('必须在配置文件 config/system.js 中指定本系统运行所在的一级域名 fristLevelDomain,否则接入应用无法正常工作。');
}
app.use(session(sessConf));
app.use(cookieParser());
// Prepare locale pack and user env info.
var Useragent = require('express-useragent');
function getClientIp (req) {
var ip = req.headers['x-real-ip'] || req.headers['x-forwarded-for'] ||
req.ip ||
(req.connection && req.connection.remoteAddress) ||
(req.socket && req.socket.remoteAddress) ||
(req.connection && req.connection.socket && req.connection.socket.remoteAddress) || '';
if (ip || ip.split(',').length > 0) {
ip = ip.split(',')[0]
}
return ip;
}
app.use(function(req, res, next) {
var lang = req.cookies.lang || 'zh-cn';
if (lang !== 'en') {
lang = 'zh-cn'
}
req.locale = i18n(lang);
req.ip = getClientIp(req);
req.ua = Useragent.parse(req.headers['user-agent'] || '');
res.cookie('access_token', req.sessionID, {
path: '/',
httpOnly: true,
secure: false,
maxAge: SESSION_MAX_AGE,
domain: systemConfig.firstLevelDomain || req.headers.host.replace(/\:\d+$/, '')
});
next();
});
// Check if the redis server is connected normally.
app.use(function(req, res, next) {
if (!req.session) {
var err = new Error(req.locale('redisConnErr', {port: systemConfig.redis.port}));
err.status = 500;
return next(err);
}
next();
});
app.use('/public', express.static(path.join(__dirname, 'assets/build')));
app.use('/', routes);
// catch 404 and forward to error handler
app.use(function(req, res, next) {
var err = new Error('URL Not Found: ' + req.url);
err.status = 404;
next(err);
});
app.use(function(err, req, res, next) {
logger.error(err);
var code = err.status || 500;
res.status(code);
// if request is ajax
if (req.headers['x-requested-with'] === 'XMLHttpRequest') {
res.send(err.message);
return
}
if (code == 404) {
res.render('404', {
message: req.locale('pageNotFound')
});
return
}
res.render('500', {
code: code,
message: err.message
});
});
module.exports = app;