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index.js
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index.js
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require('dotenv').config();
require('./model/init.js');
const fs = require('fs');
const Koa = require('koa');
const _ = require('lodash');
const path = require('path');
const cors = require('kcors');
const http2 = require('http2');
const redis = require('redis');
const Raven = require('raven');
const Pug = require('koa-pug');
const i18n = require('koa-i18n');
const winston = require('winston');
const Rollbar = require('rollbar');
const views = require('koa-views');
const serve = require('koa-static');
const koaBody = require('koa-body');
const mongoose = require('mongoose');
const locale = require('koa-locale');
const helmet = require('koa-helmet');
const logger = require('koa-logger');
const Router = require('koa-router');
const portfinder = require('portfinder');
const HTTPStatus = require('http-status');
const parameter = require('koa-parameter');
const ratelimit = require('koa-ratelimit');
const enforceHttps = require('koa-sslify');
const elasticsearch = require('elasticsearch');
const { errorResponse } = require('./controller/parse.js');
const app = new Koa();
const router = new Router();
router.use((ctx, next) => {
// 0 = disconnected, 1 = connected, 2 = connecting, 3 = disconnecting
/* istanbul ignore if */
if (mongoose.connection.readyState !== 1 && process.env.NODE_ENV !== 'test') {
return errorResponse(ctx, [HTTPStatus.INTERNAL_SERVER_ERROR, 'index', '', 1000]);
}
return next();
});
/* Setup log */
const logInfo = winston.createLogger({
transports: [new winston.transports.Console()],
format: winston.format.combine(
winston.format.colorize({ all: true }),
winston.format.simple(),
),
});
const log = winston.createLogger({
transports: [new winston.transports.Console()],
format: winston.format.combine(
winston.format.colorize({ all: true }),
winston.format.json(),
winston.format.timestamp(),
winston.format.prettyPrint(),
),
});
/* Init rollbar */
let rollbar;
/* istanbul ignore if */
if (process.env.ROLLBAR_ACCESS_TOKEN) {
rollbar = new Rollbar(process.env.ROLLBAR_ACCESS_TOKEN);
}
/* Init sentry */
/* istanbul ignore if */
if (process.env.SENTRY_DSN) {
Raven.config(process.env.SENTRY_DSN, {
sampleRate: 1,
sendTimeout: 15,
release: '1.0.0',
autoBreadcrumbs: true,
captureUnhandledRejections: true,
environment: process.env.NODE_ENV,
}).install();
}
/* Init Bonsai Elasticsearch */
/* istanbul ignore if */
if (process.env.BONSAI_URL) {
const client = new elasticsearch.Client({
host: process.env.BONSAI_URL,
log: 'trace',
});
// Test the connection:
// Send a HEAD request to "/" and allow
// up to 30 seconds for it to complete.
client.ping({ requestTimeout: 30000 }, (error) => {
if (error) {
log.error('Elasticsearch cluster is down!');
} else {
logInfo.info('Elasticsearch is well');
}
});
}
locale(app);
/* istanbul ignore if */
if (process.env.NODE_ENV === 'production') {
// Automatically redirects to an HTTPS address
app.use(enforceHttps({ trustProtoHeader: true, trustAzureHeader: true }));
}
/* Init rate limit */
const client = redis.createClient(process.env.REDIS_URL || 'redis://localhost:6379');
client.on('connect', () => {
logInfo.info('=== Redis connected ===');
app.use(ratelimit({
db: client,
duration: 60000,
errorMessage: 'API reach limit, you need to wait for a min',
id(ctx) { return ctx.ip; },
headers: {
remaining: 'Rate-Limit-Remaining',
reset: 'Rate-Limit-Reset',
total: 'Rate-Limit-Total',
},
max: 100,
disableHeader: false,
}));
});
/* istanbul ignore next */
client.on('error', err => log.error('Redis connecting failed !!!', err));
const index = require('./route/index.js');
const article = require('./route/article.js');
const comment = require('./route/comment.js');
const tag = require('./route/tag.js');
index(router);
article(router);
comment(router);
tag(router);
app
// It provides important security headers to make your app more secure by default.
.use(helmet({ noCache: true, referrerPolicy: true }))
// Enable ALL CORS Requests
.use(cors({
origin: '*',
maxAge: 24 * 60 * 60,
allowedHeaders: ['Content-Type', 'Rukeith-Token'],
methods: ['GET', 'PUT', 'DELETE', 'POST', 'PATCH', 'OPTIONS'],
}))
.use(logger())
.use(koaBody())
.use(views(__dirname, { extension: 'pug' }))
.use(serve(path.join(__dirname, 'public')))
.use(router.routes({ allowedMethods: 'throw' }))
.use(parameter(app))
.use(i18n(app, {
locales: ['us'],
extension: '.json',
modes: [
'query', // optional detect querystring - `/?locale=en-US`
'header', // optional detect header - `Accept-Language: zh-CN,zh;q=0.5`
'url', // optional detect url - `/en`
],
}));
const pug = new Pug({
viewPath: './views',
debug: process.env.NODE_ENV === 'development',
});
pug.use(app);
app.on('error', (err, ctx) => {
/* istanbul ignore if */
if (rollbar) rollbar.log(err);
try {
/* istanbul ignore if */
if (process.env.SENTRY_DSN) {
Raven.captureException(err, ctx.sentryError, (sentryerr, eventId) => {
log.error(`Reported sentry error : ${eventId}`);
if (!_.isNil(sentryerr)) log.error('Sentry capture exception error =', sentryerr);
});
}
const statusCode = ctx.status || 500;
if (statusCode === 500) {
log.error(err.stack || err);
}
ctx.response.status = statusCode;
// Default not print error message
let error = {};
// If env is development then print error messages for debug
/* istanbul ignore else */
if (app.env !== 'production' && _.has(ctx, 'sentryError') && _.has(ctx.sentryError, 'extra')) {
error = ctx.sentryError.extra;
}
ctx.response.body = {
extra: error,
status: ctx.response.status,
level: (_.has(ctx, 'sentryError') && _.has(ctx.sentryError, 'level')) ? ctx.sentryError.level : 'error',
message: (_.has(ctx, 'sentryError') && _.has(ctx.sentryError, 'message')) ? ctx.sentryError.message : 'unexpected error',
};
} catch (error) { /* istanbul ignore next */
log.error('Error handle fail :', error);
}
});
/* istanbul ignore if */
if (process.env.NODE_ENV === 'production') {
http2.createSecureServer(
{
allowHTTP1: true,
key: fs.readFileSync('./ssl.key', 'utf8'),
cert: fs.readFileSync('./ssl.cert', 'utf8'),
},
app.callback(),
).listen(443);
} else {
portfinder.basePort = process.env.PORT ? process.env.PORT : 5000;
portfinder.getPortPromise().then((port) => {
app.listen(port, () => {
logInfo.info('===========================================');
logInfo.info(`===== Server is running at port: ${port} =====`);
logInfo.info('===========================================');
// Caught global exception error handle
/* istanbul ignore next */
process.on('uncaughtException', err => log.error('Caught exception: ', err.stack));
/* istanbul ignore next */
process.on('unhandledRejection', (reason, p) => log.error('Unhandled Rejection at: Promise ', p, ' reason: ', reason.stack));
});
/* istanbul ignore next */
}).catch((error) => { /* istanbul ignore next */
log.error(`=======PORT ${portfinder.basePort} has been used=======`, error);
/* istanbul ignore next */
if (process.env.NODE_ENV !== 'test') {
process.exit(1);
}
});
}
module.exports = app;