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index.js
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index.js
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var path = require('path');
var express = require('express');
var session = require('express-session');
var MongoStore = require('connect-mongo')(session);
var flash = require('connect-flash');
var config = require('config-lite');
var routes = require('./routes');
var pkg = require('./package');
var winston = require('winston');
var expressWinston = require('express-winston');
var app = express();
// 设置模板目录
app.set('views', path.join(__dirname, 'views'));
// 设置模板引擎为 ejs
app.set('view engine', 'ejs');
// 设置静态文件目录
app.use(express.static(path.join(__dirname, 'public')));
// session 中间件
app.use(session({
name: config.session.key,// 设置 cookie 中保存 session id 的字段名称
secret: config.session.secret,// 通过设置 secret 来计算 hash 值并放在 cookie 中,使产生的 signedCookie 防篡改
resave: true,// 强制更新 session
saveUninitialized: false,// 设置为 false,强制创建一个 session,即使用户未登录
cookie: {
maxAge: config.session.maxAge// 过期时间,过期后 cookie 中的 session id 自动删除
},
store: new MongoStore({// 将 session 存储到 mongodb
url: config.mongodb// mongodb 地址
})
}));
// flash 中间价,用来显示通知
app.use(flash());
// 处理表单及文件上传的中间件
app.use(require('express-formidable')({
uploadDir: path.join(__dirname, 'public/img'),// 上传文件目录
keepExtensions: true// 保留后缀
}));
// 设置模板全局常量
app.locals.blog = {
title: pkg.name,
description: pkg.description
};
// 添加模板必需的三个变量
app.use(function (req, res, next) {
res.locals.user = req.session.user;
res.locals.success = req.flash('success').toString();
res.locals.error = req.flash('error').toString();
next();
});
// 正常请求的日志
app.use(expressWinston.logger({
transports: [
new (winston.transports.Console)({
json: true,
colorize: true
}),
new winston.transports.File({
filename: 'logs/success.log'
})
]
}));
// 路由
routes(app);
// 错误请求的日志
app.use(expressWinston.errorLogger({
transports: [
new winston.transports.Console({
json: true,
colorize: true
}),
new winston.transports.File({
filename: 'logs/error.log'
})
]
}));
// error page
app.use(function (err, req, res, next) {
res.render('error', {
error: err
});
});
if (module.parent) {
module.exports = app;
} else {
// 监听端口,启动程序
app.listen(config.port, function () {
console.log(`${pkg.name} listening on port ${config.port}`);
});
}