source: trunk/grails-app/controllers/BaseController.groovy @ 29

import org.codehaus.groovy.grails.commons.GrailsApplication
import grails.util.GrailsUtil

/**
 * Base Controller
 * @Author  Jeroen Wesbeek
 * @Since   20091014
 * @see     Authorization.groovy
 * @Description
 *
 * Base Controller which provides general functionality. Should always be
 * extended in all controllers
 *
 * Revision information:
 * $Rev: 29 $
 * $Author: duh $
 * $Date: 2009-10-26 13:00:46 +0000 (ma, 26 okt 2009) $
 */
class BaseController {
    /**
     * @var object authorization object
     * @visibility public
     */
    public def authorizationService;

    /**
     * @var boolean scaffolding default
     * @visibility public
     */
    def scaffold = false;

    /**
     * class constructor
     * @visibility protected
     * @void
     */
     BaseController() {
        // debug line for now
        printf("instantiated %s\n",this.class.name);

        // instantiate Authorization service
        this.authorizationService = new AuthorizationService();

        // dynamically set scaffolding
        this.scaffold = (GrailsUtil.environment == GrailsApplication.ENV_DEVELOPMENT && this.class.name != 'BaseController');
    }


    /**
     * intercept any method calls in extended classes
     * @visibility public
     * @see http://www.grails.org/Controllers+-+Interceptors
     */
    def beforeInterceptor = {
        def controller = params.controller;
        def action = params.action;

        // check if the user is Authorized to call this method
        if (this.authorizationService.isAuthorized(controller,action)) {
            // user is not authorized to use this functionality
            printf("authorized call to action: %s->%s(...)\n",this.class.name,action);
        } else {
            // user is not authorized to use this controller + method
            printf("!! unauthorized call to action: %s-->%s(...)\n",this.class.name,action);

            // redirect to error page
            flash['error'] = sprintf("unauthorized call to action: %s::%s\n",controller,action);
            redirect(controller:'error',action:'index');
        }
    }
}