Virtual server folder with keys management

Author: Dahlgren

lib/server.js

@@ -1,7 +1,10 @@
 var _ = require('lodash')
 var events = require('events')
 var fs = require('fs')
+var fsExtra = require('fs.extra')
 var Gamedig = require('gamedig')
+var glob = require('glob')
+var path = require('path')
 var slugify = require('slugify')
 
 var ArmaServer = require('arma-server')
@@ -134,6 +137,104 @@ Server.prototype.start = function () {
     return this
   }
 
+  var self = this
+
+  const requiredFileExtensions = ['.dll', '.exe', '.so', '.txt']
+  const serverFolders = [
+    'addons',
+    'argo',
+    'battleye',
+    'contact',
+    'curator',
+    'dll',
+    'dta',
+    'enoch',
+    'expansion',
+    'gm',
+    'heli',
+    'jets',
+    'kart',
+    'mark',
+    'mpmissions',
+    'orange',
+    'tacops',
+    'tank'
+  ]
+  const symlinkFolders = serverFolders.concat(self.mods).concat(config.serverMods)
+
+  return fs.promises.mkdtemp(path.join(self.config.path, 'arma-server-'))
+    .then((serverFolder) => {
+      self.virtualServerFolder = serverFolder
+      console.log('Created virtual server folder:', serverFolder)
+
+      return fs.promises.readdir(self.config.path)
+        .then((files) => {
+          // Copy needed files, file symlinks on Windows are sketchy
+          const serverFiles = files.filter((file) => requiredFileExtensions.indexOf(path.extname(file)) >= 0 || path.basename(file) === 'arma3server')
+          return Promise.all(serverFiles.map((file) => {
+            return fs.promises.copyFile(path.join(self.config.path, file), path.join(serverFolder, file))
+          }))
+        })
+        .then(() => {
+          // Create virtual folders from default Arma and mods
+          return Promise.all(symlinkFolders.map((symlink) => {
+            return fs.promises.access(path.join(self.config.path, symlink))
+              .then(() => {
+                return fs.promises.symlink(path.join(self.config.path, symlink), path.join(serverFolder, symlink), 'junction')
+              })
+              .catch((err) => {
+                console.error('Could create symlink for', symlink, 'due to', err)
+              })
+          }))
+        })
+        .then(() => {
+          // Copy needed keys, file symlinks on Windows are sketchy
+          const keysFolder = path.join(serverFolder, 'keys')
+          return fs.promises.mkdir(keysFolder, { recursive: true })
+            .then(() => {
+              const defaultKeysPath = path.join(self.config.path, 'keys')
+              const defaultKeysPromise = fs.promises.readdir(defaultKeysPath)
+                .then((files) => files.filter((file) => path.extname(file) === '.bikey'))
+                .then((files) => files.map((file) => path.join(defaultKeysPath, file)))
+
+              const modKeysPromise = Promise.all(self.mods.map(mod => {
+                return new Promise((resolve, reject) => {
+                  const modPath = path.join(this.config.path, mod)
+                  glob(`${modPath}/**/*.bikey`, function (err, files) {
+                    if (err) {
+                      return reject(err)
+                    }
+
+                    return resolve(files)
+                  })
+                })
+              })).then((modsFiles) => modsFiles.flat())
+
+              return Promise.all([defaultKeysPromise, modKeysPromise].map((promise) => {
+                return promise.then((keyFiles) => {
+                  return Promise.all(keyFiles.map((keyFile) => {
+                    return fs.promises.copyFile(keyFile, path.join(keysFolder, path.basename(keyFile)))
+                  }))
+                })
+              })).catch((err) => {
+                console.error('Error copying keys:', err)
+              })
+            })
+        })
+        .then(() => {
+          self.realStart(serverFolder)
+        })
+        .catch((err) => {
+          console.error('Error creating virtual server folder:', err)
+        })
+    })
+}
+
+Server.prototype.realStart = function (path) {
+  if (this.instance) {
+    return this
+  }
+
   var parameters = this.getParameters()
   var server = new ArmaServer.Server({
     additionalConfigurationOptions: this.getAdditionalConfigurationOptions(),
@@ -154,7 +255,7 @@ Server.prototype.start = function () {
     parameters: parameters,
     password: this.password,
     passwordAdmin: this.admin_password,
-    path: this.config.path,
+    path: path,
     persistent: this.persistent ? 1 : 0,
     platform: this.config.type,
     players: this.max_players,
@@ -196,8 +297,18 @@ Server.prototype.start = function () {
     self.instance = null
 
     self.stopHeadlessClients()
-
-    self.emit('state')
+      .then(() => {
+        if (self.virtualServerFolder) {
+          fsExtra.rmrf(self.virtualServerFolder, function (err) {
+            if (err) {
+              console.log('Error removing virtual server folder', err)
+            }
+          })
+          self.virtualServerFolder = null
+        }
+
+        self.emit('state')
+      })
   })
 
   instance.on('error', function (err) {
@@ -210,14 +321,14 @@ Server.prototype.start = function () {
     self.queryStatus()
   }, queryInterval)
 
-  this.startHeadlessClients()
+  this.startHeadlessClients(path)
 
   this.emit('state')
 
   return this
 }
 
-Server.prototype.startHeadlessClients = function () {
+Server.prototype.startHeadlessClients = function (path) {
   var parameters = this.getParameters()
   var self = this
   var headlessClientInstances = _.times(this.number_of_headless_clients, function (i) {
@@ -228,7 +339,7 @@ Server.prototype.startHeadlessClients = function () {
       mods: self.mods,
       parameters: parameters,
       password: self.password,
-      path: self.config.path,
+      path: path,
       platform: self.config.type,
       port: self.port
     })
@@ -293,9 +404,9 @@ Server.prototype.stop = function (cb) {
 }
 
 Server.prototype.stopHeadlessClients = function () {
-  this.headlessClientInstances.map(function (headlessClientInstance) {
-    headlessClientInstance.kill()
-  })
+  return Promise.all(this.headlessClientInstances.map(function (headlessClientInstance) {
+    return headlessClientInstance.kill()
+  }))
 }
 
 Server.prototype.toJSON = function () {

package.json

@@ -31,6 +31,7 @@
     "filesize": "^3.1.0",
     "fs.extra": "~1.3.2",
     "gamedig": "^0.2.30",
+    "glob": "^7.1.6",
     "jquery": "^3.5.0",
     "jquery.iframe-transport": "^1.0.0",
     "ladda": "1.0.5",