fix: remove Mojang service status tracker (fixes #274)

See https://github.com/Cryptkeeper/Minetrack/issues/274

lib/app.js

@@ -1,5 +1,4 @@
 const Database = require('./database')
-const MojangUpdater = require('./mojang')
 const PingController = require('./ping')
 const Server = require('./server')
 const { TimeTracker } = require('./time')
@@ -12,7 +11,6 @@ class App {
   serverRegistrations = []
 
   constructor () {
-    this.mojangUpdater = new MojangUpdater(this)
     this.pingController = new PingController(this)
     this.server = new Server(this)
     this.timeTracker = new TimeTracker(this)
@@ -33,7 +31,6 @@ class App {
     this.server.listen(config.site.ip, config.site.port)
 
     // Allow individual modules to manage their own task scheduling
-    this.mojangUpdater.schedule()
     this.pingController.schedule()
   }
 
@@ -73,7 +70,6 @@ class App {
           isGraphVisible: config.logToDatabase
         }
       })(),
-      mojangServices: this.mojangUpdater.getLastUpdate(),
       timestampPoints: this.timeTracker.getServerGraphPoints(),
       servers: this.serverRegistrations.map(serverRegistration => serverRegistration.getPingHistory())
     }

lib/mojang.js

@@ -1,95 +0,0 @@
-const request = require('request')
-
-const logger = require('./logger')
-const MessageOf = require('./message')
-
-const config = require('../config')
-
-const SERVICE_URL_LOOKUP = {
-  'session.minecraft.net': 'Sessions',
-  'authserver.mojang.com': 'Auth',
-  'textures.minecraft.net': 'Skins',
-  'api.mojang.com': 'API'
-}
-
-const TITLE_BY_MOJANG_COLOR = {
-  red: 'Offline',
-  yellow: 'Unstable',
-  green: 'Online'
-}
-
-class MojangUpdater {
-  constructor (app) {
-    this._app = app
-  }
-
-  schedule () {
-    setInterval(this.updateServices, config.rates.updateMojangStatus)
-
-    this.updateServices()
-  }
-
-  updateServices = () => {
-    request({
-      uri: 'https://status.mojang.com/check',
-      method: 'GET',
-      timeout: config.rates.mojangStatusTimeout
-    }, (err, _, body) => {
-      if (err) {
-        logger.log('error', 'Failed to update Mojang services: %s', err.message)
-
-        // Set all services to offline
-        // This may be incorrect, but if mojang.com is offline, it would never otherwise be reflected
-        Object.keys(SERVICE_URL_LOOKUP).forEach(url => {
-          this.handleServiceUpdate(url, 'red')
-        })
-
-        this.pushUpdate()
-      } else {
-        try {
-          JSON.parse(body).forEach(service => {
-            // Each service is formatted as an object with the 0 key being the URL
-            const url = Object.keys(service)[0]
-            this.handleServiceUpdate(url, service[url])
-          })
-        } catch (err) {
-          logger.log('error', 'Failed to parse Mojang response: %s', err.message)
-        }
-
-        this.pushUpdate()
-      }
-    })
-  }
-
-  pushUpdate () {
-    // Only fire callback when previous state is modified
-    if (this._hasUpdated) {
-      this._hasUpdated = false
-
-      this._app.server.broadcast(MessageOf('updateMojangServices', this._services))
-    }
-  }
-
-  getLastUpdate () {
-    return this._services
-  }
-
-  handleServiceUpdate (url, color) {
-    const service = SERVICE_URL_LOOKUP[url]
-
-    if (service) {
-      const requiredTitle = TITLE_BY_MOJANG_COLOR[color]
-
-      if (!this._services) {
-        this._services = {}
-      }
-
-      if (this._services[service] !== requiredTitle) {
-        this._services[service] = requiredTitle
-        this._hasUpdated = true
-      }
-    }
-  }
-}
-
-module.exports = MojangUpdater