mongo-express-leufu/app.js

Web-based admin interface for MongoDB

#!/usr/bin/env node

"use strict";

const clc = require("cli-color");
const csrf = require("csurf");
const commander = require("commander");
const express = require("express");
const fs = require("fs");
const https = require("https");
const middleware = require("./lib/middleware");
const utils = require("./lib/utils");
const updateNotifier = require("update-notifier");
const pkg = require("./package.json");

let app = express();
let notifier = updateNotifier({ pkg });

let config;
let defaultPort = 80;
let server = app;
let sslOptions;

// Notify of any updates
notifier.notify();

try {
  // eslint-disable-next-line import/no-unresolved
  config = utils.deepmerge(require("./config.default"), require("./config"));
} catch (e) {
  if (e.code === "MODULE_NOT_FOUND") {
    console.log("No custom config.js found, loading config.default.js");
  } else {
    console.error(clc.red("Unable to load config.js!"));
    console.error(clc.red("Error is:"));
    console.log(clc.red(e));
    process.exit(1);
  }

  config = require("./config.default");
}

if (config.options.console) {
  console.log("Welcome to mongo-express");
  console.log("------------------------");
  console.log("\n");
}

commander
  .version(require("./package").version)
  .option("-U, --url <url>", "connection string url")
  .option("-H, --host <host>", "hostname or adress")
  .option("-P, --dbport <host>", "port of the db")
  .option("-u, --username <username>", "username for authentication")
  .option("-p, --password <password>", "password for authentication")
  .option("-a, --admin", "enable authentication as admin")
  .option("-d, --database <database>", "authenticate to database")
  .option("--port <port>", "listen on specified port")
  .parse(process.argv);

if (commander.username && commander.password) {
  config.mongodb.admin = !!commander.admin;
  if (commander.admin) {
    config.mongodb.adminUsername = commander.username;
    config.mongodb.adminPassword = commander.password;
  } else {
    let user = {
      database: commander.database,
      username: commander.username,
      password: commander.password,
    };
    for (let key in user) {
      if (!user[key]) {
        commander.help();
      }
    }

    config.mongodb.auth[0] = user;
  }

  config.useBasicAuth = false;
}

if (commander.url) {
  config.mongodb.connectionString = commander.url;
  if (commander.admin) {
    config.mongodb.admin = true;
  }
}

config.mongodb.server = commander.host || config.mongodb.server;
config.mongodb.port = commander.dbport || config.mongodb.port;

config.site.port = commander.port || config.site.port;

if (!config.site.baseUrl) {
  console.error('Please specify a baseUrl in your config. Using "/" for now.');
  config.site.baseUrl = "/";
}

app.use(config.site.baseUrl, middleware(config));
app.use(config.site.baseUrl, csrf());

if (config.site.sslEnabled) {
  defaultPort = 443;
  sslOptions = {
    key: fs.readFileSync(config.site.sslKey),
    cert: fs.readFileSync(config.site.sslCert),
  };
  server = https.createServer(sslOptions, app);
}

let addressString =
  (config.site.sslEnabled ? "https://" : "http://") +
  (config.site.host || "0.0.0.0") +
  ":" +
  (config.site.port || defaultPort);

server
  .listen(config.site.port, config.site.host, function() {
    if (config.options.console) {
      console.log("Mongo Express server listening", "at " + addressString);

      if (!config.site.host || config.site.host === "0.0.0.0") {
        console.error(
          clc.red("Server is open to allow connections from anyone (0.0.0.0)")
        );
      }

      if (
        config.basicAuth.username === "admin" &&
        config.basicAuth.password === "pass"
      ) {
        console.error(
          clc.red(
            'basicAuth credentials are "admin:pass", it is recommended you change this in your config.js!'
          )
        );
      }
    }
  })
  .on("error", function(e) {
    if (e.code === "EADDRINUSE") {
      console.log();
      console.error(
        clc.red(
          "Address " +
            addressString +
            " already in use! You need to pick a different host and/or port."
        )
      );
      console.log("Maybe mongo-express is already running?");
    }

    console.log();
    console.log(
      "If you are still having trouble, try Googling for the key parts of the following error object before posting an issue"
    );
    console.log(JSON.stringify(e));
    return process.exit(1);
  });