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/*
* 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
*
* 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.coyote.http2;
import java.io.IOException;
import java.nio.ByteBuffer;
import org.apache.coyote.http2.Http2TestBase.TestOutput;
/**
* Expose the parser outside of this package for use in other tests.
*/
public class TesterHttp2Parser extends Http2Parser {
private final TestOutput output;
TesterHttp2Parser(String connectionId, Input input, TestOutput output) {
super(connectionId, input, output);
this.output = output;
}
/**
* {@inheritDoc}
* <p>
* <b>Note:</b> The test implementation always uses blocking IO for both the initial read and the remainder.
*/
@Override
public boolean readFrame() throws Http2Exception, IOException {
return super.readFrame();
}
@Override
protected void readPushPromiseFrame(int streamId, int flags, int payloadSize, ByteBuffer buffer)
throws Http2Exception, IOException {
// Parse flags used in this method
boolean hasPadding = Flags.hasPadding(flags);
boolean headersEndStream = Flags.isEndOfStream(flags);
// Padding size
int paddingSize = 0;
if (hasPadding) {
byte[] bPadSize = new byte[1];
if (buffer == null) {
input.fill(true, bPadSize);
} else {
buffer.get(bPadSize);
}
paddingSize = ByteUtil.getOneByte(bPadSize, 0);
}
// Pushed stream ID
byte[] bPushedStreamId = new byte[4];
if (buffer == null) {
input.fill(true, bPushedStreamId);
} else {
buffer.get(bPushedStreamId);
}
int pushedStreamId = ByteUtil.get31Bits(bPushedStreamId, 0);
output.pushPromise(streamId, pushedStreamId);
int headerSize = payloadSize - 4 - paddingSize;
if (hasPadding) {
headerSize--;
}
HpackDecoder hpackDecoder = output.getHpackDecoder();
hpackDecoder.setHeaderEmitter(output.headersStart(pushedStreamId, headersEndStream));
readHeaderPayload(pushedStreamId, headerSize, buffer);
if (hasPadding) {
swallowPayload(streamId, FrameType.PUSH_PROMISE.getId(), paddingSize, true, buffer);
}
}
}
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