overleaf/services/docstore/app/js/HealthChecker.js

/* eslint-disable
    camelcase,
    standard/no-callback-literal,
*/
// TODO: This file was created by bulk-decaffeinate.
// Fix any style issues and re-enable lint.
/*
 * decaffeinate suggestions:
 * DS102: Remove unnecessary code created because of implicit returns
 * DS207: Consider shorter variations of null checks
 * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
 */
const {db, ObjectId} = require("./mongojs");
const request = require("request");
const async = require("async");
const _ = require("underscore");
const crypto = require("crypto");	
const settings = require("settings-sharelatex");
const {
    port
} = settings.internal.docstore;
const logger = require("logger-sharelatex");


module.exports = { 
	check(callback){
		const doc_id = ObjectId();
		const project_id = ObjectId(settings.docstore.healthCheck.project_id);
		const url = `http://localhost:${port}/project/${project_id}/doc/${doc_id}`;
		const lines = ["smoke test - delete me", `${crypto.randomBytes(32).toString("hex")}`];
		const getOpts = () => ({
            url,
            timeout:3000
        });
		logger.log({lines, url, doc_id, project_id}, "running health check");
		const jobs = [
			function(cb){
				const opts = getOpts();
				opts.json = {lines, version: 42, ranges: {}};
				return request.post(opts, cb);
			},
			function(cb){
				const opts = getOpts();
				opts.json = true;
				return request.get(opts, function(err, res, body){
					if (err != null) {
						logger.err({err}, "docstore returned a error in health check get");
						return cb(err);
					} else if ((res == null)) {
						return cb("no response from docstore with get check");
					} else if ((res != null ? res.statusCode : undefined) !== 200) {
						return cb(`status code not 200, its ${res.statusCode}`);
					} else if (_.isEqual(body != null ? body.lines : undefined, lines) && ((body != null ? body._id : undefined) === doc_id.toString())) {
						return cb();
					} else {
						return cb(`health check lines not equal ${body.lines} != ${lines}`);
					}
				});
			},
			cb => db.docs.remove({_id: doc_id, project_id}, cb),
			cb => db.docOps.remove({doc_id}, cb)
		];
		return async.series(jobs, callback);
	}
};