/
app.js
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/
app.js
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//@ts-check
const /*consoleWarn = console.warn,*/ consoleError = console.error;
if (!process.env.DISABLE_DATADOG) {
const { DD_GIT_COMMIT_SHA, DD_GIT_REPOSITORY_URL } = process.env;
console.log('Init Datadog APM with:', {
DD_GIT_COMMIT_SHA,
DD_GIT_REPOSITORY_URL,
});
// Initialize Datadog APM
// eslint-disable-next-line @typescript-eslint/ban-ts-comment
// @ts-ignore // cf https://docs.datadoghq.com/fr/tracing/trace_collection/dd_libraries/nodejs/?tab=autresenvironnements
process.datadogTracer = require('dd-trace').init({
profiling: true, // cf https://docs.datadoghq.com/fr/profiler/enabling/nodejs/?tab=incode
});
process.datadogTracer.use('express', {
hooks: {
request: (span, req) => {
// @ts-ignore ts(2339): Property 'session' does not exist on type 'IncomingMessage'. // it's added by a middleware
const userId = req.session?.whydUid; // from legacy auth/session
span.setTag('customer.id', userId);
},
},
});
}
const util = require('util');
const openwhydVersion = require('./package.json').version;
function makeColorConsole(fct, color) {
return function () {
for (const i in arguments)
if (arguments[i] instanceof Object || arguments[i] instanceof Array)
arguments[i] = util.inspect(arguments[i]);
fct(Array.prototype.join.call(arguments, ' ')[color]);
};
}
function makeErrorLog(fct, type) {
return function () {
fct(
type === 'Warning' ? 'β ' : 'β',
type,
'--',
new Date().toUTCString(),
...arguments,
);
};
}
console.warn = makeErrorLog(consoleError, 'Warning');
console.error = makeErrorLog(consoleError, 'Error');
// app configuration
if (process.env['WHYD_GENUINE_SIGNUP_SECRET'] === undefined)
throw new Error(`missing env var: WHYD_GENUINE_SIGNUP_SECRET`);
if (process.env['WHYD_CONTACT_EMAIL'] === undefined)
throw new Error(`missing env var: WHYD_CONTACT_EMAIL`);
const dbCreds = {
mongoDbHost: process.env['MONGODB_HOST'] || 'localhost',
mongoDbPort: process.env['MONGODB_PORT'] || '27017',
mongoDbAuthUser: process.env['MONGODB_USER'],
mongoDbAuthPassword: process.env['MONGODB_PASS'],
mongoDbDatabase: process.env['MONGODB_DATABASE'], // || "openwhyd_data",
};
const useAuth0AsIdentityProvider = !!process.env.AUTH0_ISSUER_BASE_URL;
const params = (process.appParams = {
// server level
port: process.env['WHYD_PORT'] || 8080, // overrides app.conf
urlPrefix:
process.env['WHYD_URL_PREFIX'] ||
`http://localhost:${process.env['WHYD_PORT'] || 8080}`, // base URL of the app
isOnTestDatabase: dbCreds.mongoDbDatabase === 'openwhyd_test',
color: true,
// authentication
useAuth0AsIdentityProvider,
genuineSignupSecret: process.env.WHYD_GENUINE_SIGNUP_SECRET, // used by legacy auth
// workers and general site logic
searchModule:
process.env.ALGOLIA_APP_ID && process.env.ALGOLIA_API_KEY
? 'searchAlgolia'
: '', // "searchElastic" // "" => no search index
// recomPopulation: true, // populate recommendation index at startup
// email notification preferences
emailModule: 'emailSendgrid', // "DISABLED"/"null" => fake email sending
digestInterval: 60 * 1000, // digest worker checks for pending notifications every 60 seconds
digestImmediate: false, // when true, digests are sent at every interval, if any notifications are pending
feedbackEmail: process.env.WHYD_CONTACT_EMAIL, // mandatory
// rendering preferences
version: openwhydVersion,
startTime: new Date(),
nbPostsPerNewsfeedPage: 20,
nbTracksPerPlaylistEmbed: 100,
paths: {
whydPath: __dirname,
uploadDirName: 'upload_data',
uAvatarImgDirName: 'uAvatarImg',
uCoverImgDirName: 'uCoverImg',
uPlaylistDirName: 'uPlaylistImg',
},
});
const FLAGS = {
'--no-color': function () {
process.appParams.color = false;
},
'--fakeEmail': function () {
params.emailModule = '';
},
'--emailAdminsOnly': function () {
params.emailModule = 'emailAdminsOnly';
},
'--runner': function () {
/* ignore this parameter from start-stop-daemon -- note: still required? */
},
};
// when db is read
function makeMongoUrl(params) {
const host = params.mongoDbHost;
const port = parseInt(params.mongoDbPort);
const user = params.mongoDbAuthUser;
const password = params.mongoDbAuthPassword;
const db = params.mongoDbDatabase; // ?w=0
const auth =
user || password
? `${encodeURIComponent(user)}:${encodeURIComponent(password)}@`
: '';
return `mongodb://${auth}${host}:${port}/${db}`;
}
// Legacy user auth and session management
function getLegacySessionMiddleware() {
const session = require('express-session');
const MongoStore = require('connect-mongo')(session);
return session({
secret: process.env.WHYD_SESSION_SECRET,
store: new MongoStore({
url: makeMongoUrl(dbCreds),
}),
cookie: {
maxAge: 365 * 24 * 60 * 60 * 1000, // cookies expire in 1 year (provided in milliseconds)
// secure: process.appParams.urlPrefix.startsWith('https://'), // if true, cookie will be accessible only when website if opened over HTTPS
sameSite: 'strict',
},
name: 'whydSid',
resave: false, // required, cf https://www.npmjs.com/package/express-session#resave
saveUninitialized: false, // required, cf https://www.npmjs.com/package/express-session#saveuninitialized
});
}
function start() {
if (process.env['WHYD_SESSION_SECRET'] === undefined)
throw new Error(`missing env var: WHYD_SESSION_SECRET`);
const myHttp = require('./app/lib/my-http-wrapper/http');
const { makeFeatures } = require('./app/domain/OpenWhydFeatures');
const {
userCollection,
} = require('./app/infrastructure/mongodb/UserCollection');
const { ImageStorage } = require('./app/infrastructure/ImageStorage.js');
const { unsetPlaylist } = require('./app/models/post.js');
const { makeAuthFeatures } = require('./app/lib/auth0/features.js');
// Initialize features
/** @typedef {import('./app/domain/api/Features').Features} Features*/
/** @type {Features & Partial<{auth: import('./app/lib/my-http-wrapper/http/AuthFeatures').AuthFeatures}>} */
const features = makeFeatures({
userRepository: userCollection,
imageRepository: new ImageStorage(),
releasePlaylistPosts: async (userId, playlistId) =>
new Promise((resolve) => unsetPlaylist(userId, playlistId, resolve)),
});
// Inject Auth0 user auth and management features, if enabled
if (process.appParams.useAuth0AsIdentityProvider) {
features.auth = makeAuthFeatures(process.env);
}
const serverOptions = {
features,
urlPrefix: params.urlPrefix,
port: params.port,
appDir: __dirname,
sessionMiddleware: useAuth0AsIdentityProvider
? null
: getLegacySessionMiddleware(),
errorHandler: function (req, params = {}, response, statusCode) {
// to render 404 and 401 error pages from server/router
require('./app/templates/error.js').renderErrorResponse(
{ errorCode: statusCode },
response,
params.format ||
(req.accepts('html')
? 'html'
: req.accepts('json')
? 'json'
: 'text'),
req.getUser(),
);
},
uploadSettings: {
uploadDir: params.paths.uploadDirName, // 'upload_data'
keepExtensions: true,
},
};
require('./app/models/logging.js'); // init logging methods (IncomingMessage extensions)
const appServer = new myHttp.Application(serverOptions);
appServer.start(() => {
const url = params.urlPrefix || `http://127.0.0.1:${params.port}/`;
console.log(`[app] Server running at ${url}`);
});
require('./app/workers/notifEmails.js'); // start digest worker
function closeGracefully(signal) {
console.warn(`[app] ${signal} signal received: closing server...`);
appServer.stop((err) => {
console.warn(`[app] server.close => ${err || 'OK'}`);
process.exit(err ? 1 : 0);
});
}
process.on('SIGTERM', closeGracefully);
process.on('SIGINT', closeGracefully);
}
// startup
async function main() {
// apply command-line arguments
if (process.argv.length > 2) {
// ignore "node" and the filepath of this script
for (let i = 2; i < process.argv.length; ++i) {
const flag = process.argv[i];
const flagFct = FLAGS[flag];
if (flagFct) flagFct();
else if (flag.indexOf('--') == 0)
params[flag.substring(2)] = process.argv[++i];
}
}
if (params.color == true) {
require('colors'); // populates .grey, .cyan, etc... on strings, for logging.js and MyController.js
console.warn = makeErrorLog(
makeColorConsole(consoleError, 'yellow'),
'Warning',
);
console.error = makeErrorLog(
makeColorConsole(consoleError, 'red'),
'Error',
);
} else {
process.appParams.color = false;
}
console.log(`[app] Starting Openwhyd v${params.version}`);
const mongodb = require('./app/models/mongodb.js'); // we load it from here, so that process.appParams are initialized
await util.promisify(mongodb.init)(dbCreds);
await mongodb.initCollections();
start();
}
main().catch((err) => {
// in order to prevent UnhandledPromiseRejections, let's catch errors and exit as we should
console.log('[app] error from main():', err);
console.error('[app] error from main():', err);
process.exit(1);
});