Plugins You can find out about all the publicly available Grails plugins.

License Plugin

  • Tags: security
  • Latest: 0.2
  • Last Updated: 12 December 2009
  • Grails version: 1.1.1 > *
  • Authors: null
0 vote
compile "org.grails.plugins:license:0.2"




License Management Plugin

This plugin provides the ability to securely create, install and verify license for closed source grails applications. This plugin utilizes TrueLicense Library Collection (TLC).

Author: Manohar Viswanathan (manohar.viswanathan 'at '


grails install-plugin license


  • Generate license file:
grails generate-license
  • Start app:
grails run-app

Components available in your app

  • /license-config/ - private key file. This never gets included in your WAR. (You should generate your own private/public keys with keytool command. see tips section below)
  • /license-config/ - holds all necessary configuration to create a license such as issuer, holder, validity etc. Again not included in WAR
  • /grails-app/conf/ - public key file. This is included in WAR
  • /grails-app/conf/LicensePublicConfig.groovy - holds all necessary information required for the client. Included in WAR
  • /grails-app/conf/LicenseFilter - defines which controllers, actions need to be protected.

Components available in the plugin

  • /controller/LicenseController - Install, verify license
  • /services/LicenseService - Install, verify license


  • To generate private key:
keytool -genkey -alias privatekey -keystore
  • To generate public key
keytool -export -alias privatekey -file certfile.cer -keystore

keytool -import -alias publiccert -file certfile.cer -keystore

  • The system preferences are stored in the registry in windows and file system (/etc/.java/) in Linux. You may need appropriate permissions to be able to do this.