netty5/codec-http2/src/main/java/io/netty/handler/codec/http2/Http2HeadersDecoder.java
Scott Mitchell ecacd11b06 HTTP/2 limit header accumulated size
Motivation:
The Http2FrameListener requires that the Http2FrameReader accumulate ByteBuf objects. There is currently no way to limit the amount of bytes that is accumulated.

Motiviation:
- DefaultHttp2FrameReader supports maxHeaderSize which will fail fast as soon as the maximum size is exceeded.
- DefaultHttp2HeadersDecoder will respect the return value of endHeaderBlock() and fail if the max size is exceeded.

Result:
Frames which carry header data now respect a maximum number of bytes that can be accumulated.
2015-07-07 13:25:03 -07:00

49 lines
1.5 KiB
Java

/*
* Copyright 2014 The Netty Project
*
* The Netty Project 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 io.netty.handler.codec.http2;
import io.netty.buffer.ByteBuf;
/**
* Decodes HPACK-encoded headers blocks into {@link Http2Headers}.
*/
public interface Http2HeadersDecoder {
/**
* Configuration related elements for the {@link Http2HeadersDecoder} interface
*/
interface Configuration {
/**
* Access the Http2HeaderTable for this {@link Http2HeadersDecoder}
*/
Http2HeaderTable headerTable();
/**
* Get the maximum number of bytes that is allowed before truncation occurs.
*/
int maxHeaderSize();
}
/**
* Decodes the given headers block and returns the headers.
*/
Http2Headers decodeHeaders(ByteBuf headerBlock) throws Http2Exception;
/**
* Get the {@link Configuration} for this {@link Http2HeadersDecoder}
*/
Configuration configuration();
}