/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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
 *
 *   https://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.
 *
 *   SPDX-License-Identifier: Apache-2.0
 */

package org.apache.jena.fuseki.access;

import org.apache.jena.atlas.lib.InternalErrorException;
import org.apache.jena.fuseki.servlets.ActionService;
import org.apache.jena.fuseki.servlets.HttpAction;
import org.apache.jena.fuseki.servlets.ServletOps;
import org.apache.jena.http.HttpMethod;

/**
 * Wrapper for an {@link ActionService} that rejects a request with a "write" HTTP
 * method to an graph-access-controlled dataset. Graph-access-controlled dataset only
 * support reads (query and GSP GET).
 */
public class AccessCtl_AllowGET extends ActionService {

    private final ActionService other;
    private final String label;

    public AccessCtl_AllowGET(ActionService other, String label) {
        this.other = other;
        this.label = label;
    }

    @Override
    public void validate(HttpAction action) {
        other.validate(action);
    }

    @Override
    public void execute(HttpAction action) {
        other.execute(action);
    }

    // Allow
    @Override
    public void execHead(HttpAction action) {
        executeLifecycle(action);
    }

    // Allow
    @Override
    public void execGet(HttpAction action) {
        executeLifecycle(action);
    }

    // Deny all others.
    @Override
    public void execAny(HttpMethod method, HttpAction action) {
        if ( label == null )
            ServletOps.errorBadRequest("Not supported");
        else
            ServletOps.errorBadRequest(label+" : not supported");
        throw new InternalErrorException("AccessCtl_AllowGET: "+ "didn't reject request");
    }
}
