Prevent commands from being executed, except those whitelisted

src/main/resources/config.yml

@@ -19,6 +19,9 @@ jailing:
     blockPlacePenalty: 5m
     blockPlaceProtection: true
     blockPlaceWhiteList: ['crops', 'carrot', 'potato'] # these blocks can be placed at any time by prisoners
+    commandPenalty: 5m
+    commandProtection: true
+    commandWhitelist: ['/ping', '/list']
     countDownTimeWhileOffline: false
     explosionProtection: true
     ignoreSleeping: true

src/main/resources/en.yml

@@ -2,6 +2,7 @@ language:
   actions:
     blockbreaking: 'breaking a block'
     blockplacing: 'placing a block'
+    command: 'trying to use a command'
   general:
     unknowncommand: '&cNo commands registered by the name of %0%.'
     nopermission: '&cInsufficient permission.'