TitleFilteringSecurityPolicy.java

/*
 * (C) Copyright 2013 Nuxeo SA (http://nuxeo.com/) and others.
 *
 * 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.
 *
 * Contributors:
 *     Florent Guillaume
 */
package org.nuxeo.ecm.core.opencmis.impl;

import java.security.Principal;

import org.nuxeo.ecm.core.api.security.ACP;
import org.nuxeo.ecm.core.api.security.Access;
import org.nuxeo.ecm.core.api.security.SecurityConstants;
import org.nuxeo.ecm.core.model.Document;
import org.nuxeo.ecm.core.security.AbstractSecurityPolicy;

/**
 * Test security policy that forbids titles starting with SECRET.
 *
 * @since 5.7.2
 */
public class TitleFilteringSecurityPolicy extends AbstractSecurityPolicy {

    protected static final String PREFIX = "SECRET";

    @Override
    public Access checkPermission(Document doc, ACP mergedAcp, Principal principal, String permission,
            String[] resolvedPermissions, String[] additionalPrincipals) {
        if (!isRestrictingPermission(permission)) {
            return Access.UNKNOWN;
        }
        String title = (String) doc.getPropertyValue("dc:title");
        if (title != null && title.startsWith(PREFIX)) {
            return Access.DENY;
        }
        return Access.UNKNOWN;
    }

    @Override
    public boolean isRestrictingPermission(String permission) {
        return permission.equals(SecurityConstants.BROWSE);
    }

    @Override
    public boolean isExpressibleInQuery(String repositoryName) {
        return false;
    }

}