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License Plugin

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 ' gmail.com) 

Installation

grails install-plugin license

Usage

  • Generate license file: 
    grails generate-license
  • Start app: 
    grails run-app
  • Instal/verify license at http://localhost:8080/your_app/license. If you try to access your app without installing license, you will be redirected to this page.

Components

  • /plugins/license-0.1/etc/privateKey.store - 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)
  • /plugins/license-0.1/etc/LicensePrivateConfig.properties - holds all necessary configuration to create a license such as issuer, holder, validity etc. Again not included in WAR
  • /plugins/license-0.1/conf/publicCerts.store - public key file. This is included in WAR
  • /plugins/license-0.1/conf/LicensePublicConfig.groovy - holds all necessary information required for the client. Included in WAR
  • /plugins/license-0.1/controller/LicenseController - Install, verify license
  • /plugins/license-0.1/services/LicenseService - Install, verify license
  • /plugins/license-0.1/conf/LicenseFilter - defines which controllers, actions need to be protected.

Tips

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

keytool -import -alias publiccert -file certfile.cer -keystore publicCerts.store
  • 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.
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