/*
* This file is part of the Wayback archival access software
* (http://archive-access.sourceforge.net/projects/wayback/).
*
* Licensed to the Internet Archive (IA) by one or more individual
* contributors.
*
* The IA 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.archive.wayback.replay;
import java.util.Map;
import org.archive.wayback.ResultURIConverter;
import org.archive.wayback.core.CaptureSearchResult;
/**
* HttpHeaderProcessor which passes through all headers as-is.
*
* <p>{@code Transfer-Encoding} header is an exception. It is always dropped
* (or preserved by renaming if {@code prefix} is non-empty.) This is because
* Resource classes always produce original content, decoding transfer-encoding.</p>
* <p>TODO: This may not be the best place to drop {@code Transfer-Encoding}
* header. Maybe better done inside Resource classes, who <em>knows</em> it
* is decoding transfer-encoding.</p>
*
* @author brad
*/
public class IdentityHttpHeaderProcessor extends PreservingHttpHeaderProcessor {
/* (non-Javadoc)
* @see org.archive.wayback.replay.HttpHeaderProcessor#filter(java.util.Map, java.lang.String, java.lang.String, org.archive.wayback.ResultURIConverter, org.archive.wayback.core.CaptureSearchResult)
*/
public void filter(Map<String, String> output, String key, String value,
ResultURIConverter uriConverter, CaptureSearchResult result) {
if (key.equalsIgnoreCase(HTTP_TRANSFER_ENCODING_HEADER_UP))
preserve(output, key, value);
else
output.put(key, value);
}
}