mirror of https://github.com/status-im/codimd.git
676 lines
19 KiB
JavaScript
676 lines
19 KiB
JavaScript
// app
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// external modules
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var express = require('express')
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var toobusy = require('toobusy-js')
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var ejs = require('ejs')
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var passport = require('passport')
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var methodOverride = require('method-override')
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var cookieParser = require('cookie-parser')
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var bodyParser = require('body-parser')
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var compression = require('compression')
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var session = require('express-session')
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var SequelizeStore = require('connect-session-sequelize')(session.Store)
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var fs = require('fs')
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var url = require('url')
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var path = require('path')
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var imgur = require('imgur')
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var formidable = require('formidable')
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var morgan = require('morgan')
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var passportSocketIo = require('passport.socketio')
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var helmet = require('helmet')
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var i18n = require('i18n')
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var flash = require('connect-flash')
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var validator = require('validator')
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// core
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var config = require('./lib/config.js')
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var logger = require('./lib/logger.js')
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var auth = require('./lib/auth.js')
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var response = require('./lib/response.js')
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var models = require('./lib/models')
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// generate front-end constants by template
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var constpath = path.join(__dirname, './public/js/lib/common/constant.ejs')
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var data = {
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domain: config.domain,
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urlpath: config.urlpath,
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debug: config.debug,
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version: config.version,
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GOOGLE_API_KEY: config.google ? config.google.GOOGLE_API_KEY : '',
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GOOGLE_CLIENT_ID: config.google ? config.google.GOOGLE_CLIENT_ID : '',
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DROPBOX_APP_KEY: config.dropbox ? config.dropbox.DROPBOX_APP_KEY : ''
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}
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ejs.renderFile(constpath, data, {}, function (err, str) {
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if (err) throw new Error(err)
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fs.writeFileSync(path.join(__dirname, './public/build/constant.js'), str)
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})
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// server setup
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var app = express()
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var server = null
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if (config.usessl) {
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var ca = (function () {
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var i, len, results
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results = []
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for (i = 0, len = config.sslcapath.length; i < len; i++) {
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results.push(fs.readFileSync(config.sslcapath[i], 'utf8'))
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}
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return results
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})()
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var options = {
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key: fs.readFileSync(config.sslkeypath, 'utf8'),
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cert: fs.readFileSync(config.sslcertpath, 'utf8'),
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ca: ca,
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dhparam: fs.readFileSync(config.dhparampath, 'utf8'),
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requestCert: false,
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rejectUnauthorized: false
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}
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server = require('https').createServer(options, app)
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} else {
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server = require('http').createServer(app)
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}
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// logger
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app.use(morgan('combined', {
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'stream': logger.stream
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}))
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// socket io
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var io = require('socket.io')(server)
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io.engine.ws = new (require('uws').Server)({
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noServer: true,
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perMessageDeflate: false
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})
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// others
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var realtime = require('./lib/realtime.js')
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// assign socket io to realtime
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realtime.io = io
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// methodOverride
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app.use(methodOverride('_method'))
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// create application/x-www-form-urlencoded parser
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var urlencodedParser = bodyParser.urlencoded({
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extended: false,
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limit: 1024 * 1024 * 10 // 10 mb
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})
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// session store
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var sessionStore = new SequelizeStore({
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db: models.sequelize
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})
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// compression
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app.use(compression())
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// use hsts to tell https users stick to this
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app.use(helmet.hsts({
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maxAge: 31536000 * 1000, // 365 days
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includeSubdomains: true,
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preload: true
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}))
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i18n.configure({
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locales: ['en', 'zh', 'fr', 'de', 'ja', 'es', 'ca', 'el', 'pt', 'it', 'tr', 'ru', 'nl', 'hr', 'pl', 'uk', 'hi', 'sv', 'eo'],
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cookie: 'locale',
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directory: path.join(__dirname, '/locales')
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})
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app.use(cookieParser())
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app.use(i18n.init)
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// routes without sessions
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// static files
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app.use('/', express.static(path.join(__dirname, '/public'), { maxAge: config.staticcachetime }))
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// session
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app.use(session({
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name: config.sessionname,
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secret: config.sessionsecret,
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resave: false, // don't save session if unmodified
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saveUninitialized: true, // always create session to ensure the origin
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rolling: true, // reset maxAge on every response
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cookie: {
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maxAge: config.sessionlife
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},
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store: sessionStore
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}))
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// session resumption
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var tlsSessionStore = {}
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server.on('newSession', function (id, data, cb) {
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tlsSessionStore[id.toString('hex')] = data
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cb()
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})
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server.on('resumeSession', function (id, cb) {
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cb(null, tlsSessionStore[id.toString('hex')] || null)
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})
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// middleware which blocks requests when we're too busy
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app.use(function (req, res, next) {
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if (toobusy()) {
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response.errorServiceUnavailable(res)
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} else {
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next()
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}
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})
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app.use(flash())
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// passport
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app.use(passport.initialize())
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app.use(passport.session())
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auth.registerAuthMethod()
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// serialize and deserialize
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passport.serializeUser(function (user, done) {
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logger.info('serializeUser: ' + user.id)
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return done(null, user.id)
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})
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passport.deserializeUser(function (id, done) {
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models.User.findOne({
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where: {
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id: id
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}
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}).then(function (user) {
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logger.info('deserializeUser: ' + user.id)
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return done(null, user)
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}).catch(function (err) {
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logger.error(err)
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return done(err, null)
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})
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})
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// check uri is valid before going further
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app.use(function (req, res, next) {
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try {
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decodeURIComponent(req.path)
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} catch (err) {
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logger.error(err)
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return response.errorBadRequest(res)
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}
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next()
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})
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// redirect url without trailing slashes
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app.use(function (req, res, next) {
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if (req.method === 'GET' && req.path.substr(-1) === '/' && req.path.length > 1) {
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var query = req.url.slice(req.path.length)
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var urlpath = req.path.slice(0, -1)
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var serverurl = config.serverurl
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if (config.urlpath) serverurl = serverurl.slice(0, -(config.urlpath.length + 1))
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res.redirect(301, serverurl + urlpath + query)
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} else {
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next()
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}
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})
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// routes need sessions
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// template files
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app.set('views', path.join(__dirname, '/public/views'))
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// set render engine
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app.engine('ejs', ejs.renderFile)
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// set view engine
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app.set('view engine', 'ejs')
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// get index
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app.get('/', response.showIndex)
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// get 403 forbidden
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app.get('/403', function (req, res) {
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response.errorForbidden(res)
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})
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// get 404 not found
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app.get('/404', function (req, res) {
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response.errorNotFound(res)
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})
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// get 500 internal error
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app.get('/500', function (req, res) {
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response.errorInternalError(res)
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})
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// get status
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app.get('/status', function (req, res, next) {
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realtime.getStatus(function (data) {
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res.set({
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'Cache-Control': 'private', // only cache by client
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'X-Robots-Tag': 'noindex, nofollow' // prevent crawling
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})
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res.send(data)
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})
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})
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// get status
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app.get('/temp', function (req, res) {
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var host = req.get('host')
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if (config.alloworigin.indexOf(host) === -1) {
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response.errorForbidden(res)
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} else {
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var tempid = req.query.tempid
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if (!tempid) {
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response.errorForbidden(res)
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} else {
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models.Temp.findOne({
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where: {
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id: tempid
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}
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}).then(function (temp) {
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if (!temp) {
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response.errorNotFound(res)
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} else {
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res.header('Access-Control-Allow-Origin', '*')
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res.send({
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temp: temp.data
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})
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temp.destroy().catch(function (err) {
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if (err) {
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logger.error('remove temp failed: ' + err)
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}
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})
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}
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}).catch(function (err) {
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logger.error(err)
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return response.errorInternalError(res)
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})
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}
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}
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})
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// post status
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app.post('/temp', urlencodedParser, function (req, res) {
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var host = req.get('host')
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if (config.alloworigin.indexOf(host) === -1) {
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response.errorForbidden(res)
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} else {
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var data = req.body.data
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if (!data) {
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response.errorForbidden(res)
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} else {
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if (config.debug) {
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logger.info('SERVER received temp from [' + host + ']: ' + req.body.data)
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}
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models.Temp.create({
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data: data
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}).then(function (temp) {
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if (temp) {
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res.header('Access-Control-Allow-Origin', '*')
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res.send({
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status: 'ok',
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id: temp.id
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})
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} else {
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response.errorInternalError(res)
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}
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}).catch(function (err) {
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logger.error(err)
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return response.errorInternalError(res)
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})
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}
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}
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})
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function setReturnToFromReferer (req) {
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var referer = req.get('referer')
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if (!req.session) req.session = {}
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req.session.returnTo = referer
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}
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// facebook auth
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if (config.facebook) {
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app.get('/auth/facebook', function (req, res, next) {
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setReturnToFromReferer(req)
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passport.authenticate('facebook')(req, res, next)
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})
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// facebook auth callback
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app.get('/auth/facebook/callback',
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passport.authenticate('facebook', {
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successReturnToOrRedirect: config.serverurl + '/',
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failureRedirect: config.serverurl + '/'
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}))
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}
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// twitter auth
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if (config.twitter) {
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app.get('/auth/twitter', function (req, res, next) {
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setReturnToFromReferer(req)
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passport.authenticate('twitter')(req, res, next)
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})
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// twitter auth callback
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app.get('/auth/twitter/callback',
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passport.authenticate('twitter', {
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successReturnToOrRedirect: config.serverurl + '/',
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failureRedirect: config.serverurl + '/'
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}))
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}
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// github auth
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if (config.github) {
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app.get('/auth/github', function (req, res, next) {
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setReturnToFromReferer(req)
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passport.authenticate('github')(req, res, next)
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})
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// github auth callback
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app.get('/auth/github/callback',
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passport.authenticate('github', {
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successReturnToOrRedirect: config.serverurl + '/',
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failureRedirect: config.serverurl + '/'
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}))
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if (!config.gitlab.scope || config.gitlab.scope === 'api') {
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// gitlab callback actions
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app.get('/auth/gitlab/callback/:noteId/:action', response.gitlabActions)
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}
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}
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// gitlab auth
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if (config.gitlab) {
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app.get('/auth/gitlab', function (req, res, next) {
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setReturnToFromReferer(req)
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passport.authenticate('gitlab')(req, res, next)
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})
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// gitlab auth callback
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app.get('/auth/gitlab/callback',
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passport.authenticate('gitlab', {
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successReturnToOrRedirect: config.serverurl + '/',
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failureRedirect: config.serverurl + '/'
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}))
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// gitlab callback actions
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app.get('/auth/gitlab/callback/:noteId/:action', response.gitlabActions)
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}
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// dropbox auth
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if (config.dropbox) {
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app.get('/auth/dropbox', function (req, res, next) {
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setReturnToFromReferer(req)
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passport.authenticate('dropbox-oauth2')(req, res, next)
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})
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// dropbox auth callback
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app.get('/auth/dropbox/callback',
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passport.authenticate('dropbox-oauth2', {
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successReturnToOrRedirect: config.serverurl + '/',
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failureRedirect: config.serverurl + '/'
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}))
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}
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// google auth
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if (config.google) {
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app.get('/auth/google', function (req, res, next) {
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setReturnToFromReferer(req)
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passport.authenticate('google', { scope: ['profile'] })(req, res, next)
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})
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// google auth callback
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app.get('/auth/google/callback',
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passport.authenticate('google', {
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successReturnToOrRedirect: config.serverurl + '/',
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failureRedirect: config.serverurl + '/'
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}))
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}
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// ldap auth
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if (config.ldap) {
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app.post('/auth/ldap', urlencodedParser, function (req, res, next) {
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if (!req.body.username || !req.body.password) return response.errorBadRequest(res)
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setReturnToFromReferer(req)
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passport.authenticate('ldapauth', {
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successReturnToOrRedirect: config.serverurl + '/',
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failureRedirect: config.serverurl + '/',
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failureFlash: true
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})(req, res, next)
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})
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}
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// email auth
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if (config.email) {
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if (config.allowemailregister) {
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app.post('/register', urlencodedParser, function (req, res, next) {
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if (!req.body.email || !req.body.password) return response.errorBadRequest(res)
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if (!validator.isEmail(req.body.email)) return response.errorBadRequest(res)
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models.User.findOrCreate({
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where: {
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email: req.body.email
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},
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defaults: {
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password: req.body.password
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}
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}).spread(function (user, created) {
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if (user) {
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if (created) {
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if (config.debug) {
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logger.info('user registered: ' + user.id)
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}
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req.flash('info', "You've successfully registered, please signin.")
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} else {
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if (config.debug) {
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logger.info('user found: ' + user.id)
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}
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req.flash('error', 'This email has been used, please try another one.')
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}
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return res.redirect(config.serverurl + '/')
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}
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req.flash('error', 'Failed to register your account, please try again.')
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return res.redirect(config.serverurl + '/')
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}).catch(function (err) {
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logger.error('auth callback failed: ' + err)
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return response.errorInternalError(res)
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})
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})
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}
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app.post('/login', urlencodedParser, function (req, res, next) {
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if (!req.body.email || !req.body.password) return response.errorBadRequest(res)
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if (!validator.isEmail(req.body.email)) return response.errorBadRequest(res)
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setReturnToFromReferer(req)
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passport.authenticate('local', {
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successReturnToOrRedirect: config.serverurl + '/',
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failureRedirect: config.serverurl + '/',
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failureFlash: 'Invalid email or password.'
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})(req, res, next)
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})
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}
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// logout
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app.get('/logout', function (req, res) {
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if (config.debug && req.isAuthenticated()) { logger.info('user logout: ' + req.user.id) }
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req.logout()
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res.redirect(config.serverurl + '/')
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})
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var history = require('./lib/history.js')
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// get history
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app.get('/history', history.historyGet)
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// post history
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app.post('/history', urlencodedParser, history.historyPost)
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// post history by note id
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app.post('/history/:noteId', urlencodedParser, history.historyPost)
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// delete history
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app.delete('/history', history.historyDelete)
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// delete history by note id
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app.delete('/history/:noteId', history.historyDelete)
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// get me info
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app.get('/me', function (req, res) {
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if (req.isAuthenticated()) {
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models.User.findOne({
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where: {
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id: req.user.id
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}
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}).then(function (user) {
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if (!user) { return response.errorNotFound(res) }
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var profile = models.User.getProfile(user)
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res.send({
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status: 'ok',
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id: req.user.id,
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name: profile.name,
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photo: profile.photo
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})
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}).catch(function (err) {
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logger.error('read me failed: ' + err)
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return response.errorInternalError(res)
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})
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} else {
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res.send({
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status: 'forbidden'
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})
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}
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})
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// upload image
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app.post('/uploadimage', function (req, res) {
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var form = new formidable.IncomingForm()
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form.keepExtensions = true
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if (config.imageUploadType === 'filesystem') {
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form.uploadDir = 'public/uploads'
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}
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form.parse(req, function (err, fields, files) {
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if (err || !files.image || !files.image.path) {
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response.errorForbidden(res)
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} else {
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if (config.debug) { logger.info('SERVER received uploadimage: ' + JSON.stringify(files.image)) }
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try {
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switch (config.imageUploadType) {
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case 'filesystem':
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res.send({
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link: url.resolve(config.serverurl + '/', files.image.path.match(/^public\/(.+$)/)[1])
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})
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break
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case 's3':
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var AWS = require('aws-sdk')
|
|
var awsConfig = new AWS.Config(config.s3)
|
|
var s3 = new AWS.S3(awsConfig)
|
|
|
|
fs.readFile(files.image.path, function (err, buffer) {
|
|
if (err) {
|
|
logger.error(err)
|
|
res.status(500).end('upload image error')
|
|
return
|
|
}
|
|
var params = {
|
|
Bucket: config.s3bucket,
|
|
Key: path.join('uploads', path.basename(files.image.path)),
|
|
Body: buffer
|
|
}
|
|
|
|
s3.putObject(params, function (err, data) {
|
|
if (err) {
|
|
logger.error(err)
|
|
res.status(500).end('upload image error')
|
|
return
|
|
}
|
|
res.send({
|
|
link: `https://s3-${config.s3.region}.amazonaws.com/${config.s3bucket}/${params.Key}`
|
|
})
|
|
})
|
|
})
|
|
break
|
|
case 'imgur':
|
|
default:
|
|
imgur.setClientId(config.imgur.clientID)
|
|
imgur.uploadFile(files.image.path)
|
|
.then(function (json) {
|
|
if (config.debug) { logger.info('SERVER uploadimage success: ' + JSON.stringify(json)) }
|
|
res.send({
|
|
link: json.data.link.replace(/^http:\/\//i, 'https://')
|
|
})
|
|
})
|
|
.catch(function (err) {
|
|
logger.error(err)
|
|
return res.status(500).end('upload image error')
|
|
})
|
|
break
|
|
}
|
|
} catch (err) {
|
|
logger.error(err)
|
|
return res.status(500).end('upload image error')
|
|
}
|
|
}
|
|
})
|
|
})
|
|
// get new note
|
|
app.get('/new', response.newNote)
|
|
// get publish note
|
|
app.get('/s/:shortid', response.showPublishNote)
|
|
// publish note actions
|
|
app.get('/s/:shortid/:action', response.publishNoteActions)
|
|
// get publish slide
|
|
app.get('/p/:shortid', response.showPublishSlide)
|
|
// publish slide actions
|
|
app.get('/p/:shortid/:action', response.publishSlideActions)
|
|
// get note by id
|
|
app.get('/:noteId', response.showNote)
|
|
// note actions
|
|
app.get('/:noteId/:action', response.noteActions)
|
|
// note actions with action id
|
|
app.get('/:noteId/:action/:actionId', response.noteActions)
|
|
// response not found if no any route matches
|
|
app.get('*', function (req, res) {
|
|
response.errorNotFound(res)
|
|
})
|
|
|
|
// socket.io secure
|
|
io.use(realtime.secure)
|
|
// socket.io auth
|
|
io.use(passportSocketIo.authorize({
|
|
cookieParser: cookieParser,
|
|
key: config.sessionname,
|
|
secret: config.sessionsecret,
|
|
store: sessionStore,
|
|
success: realtime.onAuthorizeSuccess,
|
|
fail: realtime.onAuthorizeFail
|
|
}))
|
|
// socket.io heartbeat
|
|
io.set('heartbeat interval', config.heartbeatinterval)
|
|
io.set('heartbeat timeout', config.heartbeattimeout)
|
|
// socket.io connection
|
|
io.sockets.on('connection', realtime.connection)
|
|
|
|
// listen
|
|
function startListen () {
|
|
server.listen(config.port, function () {
|
|
var schema = config.usessl ? 'HTTPS' : 'HTTP'
|
|
logger.info('%s Server listening at port %d', schema, config.port)
|
|
config.maintenance = false
|
|
})
|
|
}
|
|
|
|
// sync db then start listen
|
|
models.sequelize.sync().then(function () {
|
|
// check if realtime is ready
|
|
if (realtime.isReady()) {
|
|
models.Revision.checkAllNotesRevision(function (err, notes) {
|
|
if (err) throw new Error(err)
|
|
if (!notes || notes.length <= 0) return startListen()
|
|
})
|
|
} else {
|
|
throw new Error('server still not ready after db synced')
|
|
}
|
|
})
|
|
|
|
// log uncaught exception
|
|
process.on('uncaughtException', function (err) {
|
|
logger.error('An uncaught exception has occured.')
|
|
logger.error(err)
|
|
logger.error('Process will exit now.')
|
|
process.exit(1)
|
|
})
|
|
|
|
// install exit handler
|
|
function handleTermSignals () {
|
|
config.maintenance = true
|
|
// disconnect all socket.io clients
|
|
Object.keys(io.sockets.sockets).forEach(function (key) {
|
|
var socket = io.sockets.sockets[key]
|
|
// notify client server going into maintenance status
|
|
socket.emit('maintenance')
|
|
setTimeout(function () {
|
|
socket.disconnect(true)
|
|
}, 0)
|
|
})
|
|
var checkCleanTimer = setInterval(function () {
|
|
if (realtime.isReady()) {
|
|
models.Revision.checkAllNotesRevision(function (err, notes) {
|
|
if (err) return logger.error(err)
|
|
if (!notes || notes.length <= 0) {
|
|
clearInterval(checkCleanTimer)
|
|
return process.exit(0)
|
|
}
|
|
})
|
|
}
|
|
}, 100)
|
|
}
|
|
process.on('SIGINT', handleTermSignals)
|
|
process.on('SIGTERM', handleTermSignals)
|
|
process.on('SIGQUIT', handleTermSignals)
|