/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.shiro.ee.faces.tags;

import org.apache.shiro.subject.Subject;

import javax.faces.view.facelets.TagConfig;


/**
 * Displays body content if the current user has any of the roles specified.
 */
public class HasAnyRolesTag extends PermissionTagHandler {
    // Delimiter that separates role names in tag attribute
    private static final String ROLE_NAMES_DELIMITER = ",";

    public HasAnyRolesTag(TagConfig config) {
        super(config);
    }

    @Override
    protected boolean showTagBody(String roleNames) {
        boolean hasAnyRole = false;

        Subject subject = getSubject();

        if (subject != null) {
            // Iterate through roles and check to see if the user has one of the roles
            for (String role : roleNames.split(ROLE_NAMES_DELIMITER)) {
                if (subject.hasRole(role.trim())) {
                    hasAnyRole = true;
                    break;
                }
            }
        }

        return hasAnyRole;
    }
}
