// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The SFC 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
//
//   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.openqa.selenium.grid.web;

import java.util.Collection;
import java.util.Set;
import org.openqa.selenium.internal.Require;
import org.openqa.selenium.remote.http.Filter;
import org.openqa.selenium.remote.http.HttpHandler;

public class EnsureSpecCompliantHeaders implements Filter {

  private final Filter filter;

  public EnsureSpecCompliantHeaders(
      Collection<String> allowedOriginHosts, Set<String> skipChecksOn) {
    Require.nonNull("Allowed origins list", allowedOriginHosts);
    Require.nonNull("URLs to skip checks on", skipChecksOn);

    filter =
        new CheckOriginHeader(allowedOriginHosts, skipChecksOn)
            .andThen(new CheckContentTypeHeader(skipChecksOn))
            .andThen(new EnsureSpecCompliantResponseHeaders());
  }

  @Override
  public HttpHandler apply(HttpHandler httpHandler) {
    Require.nonNull("Next handler", httpHandler);
    return filter.apply(httpHandler);
  }
}
