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/*
* Authored by Alex Hultman, 2018-2020.
* Intellectual property of third-party.
* Licensed 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.
*/
#ifndef UWS_WEBSOCKETDATA_H
#define UWS_WEBSOCKETDATA_H
#include "WebSocketProtocol.h"
#include "AsyncSocketData.h"
#include "PerMessageDeflate.h"
#include "TopicTree.h"
#include <string>
namespace uWS {
struct WebSocketData : AsyncSocketData<false>, WebSocketState<true> {
/* This guy has a lot of friends - why? */
template <bool, bool, typename> friend struct WebSocketContext;
template <bool, typename> friend struct WebSocketContextData;
template <bool, bool, typename> friend struct WebSocket;
template <bool> friend struct HttpContext;
private:
std::string fragmentBuffer;
unsigned int controlTipLength = 0;
bool isShuttingDown = 0;
bool hasTimedOut = false;
enum CompressionStatus : char {
DISABLED,
ENABLED,
COMPRESSED_FRAME
} compressionStatus;
/* We might have a dedicated compressor */
DeflationStream *deflationStream = nullptr;
/* And / or a dedicated decompressor */
InflationStream *inflationStream = nullptr;
/* We could be a subscriber */
Subscriber *subscriber = nullptr;
public:
WebSocketData(bool perMessageDeflate, CompressOptions compressOptions, BackPressure &&backpressure) : AsyncSocketData<false>(std::move(backpressure)), WebSocketState<true>() {
compressionStatus = perMessageDeflate ? ENABLED : DISABLED;
/* Initialize the dedicated sliding window(s) */
if (perMessageDeflate) {
if ((compressOptions & CompressOptions::_COMPRESSOR_MASK) != CompressOptions::SHARED_COMPRESSOR) {
deflationStream = new DeflationStream(compressOptions);
}
if ((compressOptions & CompressOptions::_DECOMPRESSOR_MASK) != CompressOptions::SHARED_DECOMPRESSOR) {
inflationStream = new InflationStream(compressOptions);
}
}
}
~WebSocketData() {
if (deflationStream) {
delete deflationStream;
}
if (inflationStream) {
delete inflationStream;
}
if (subscriber) {
delete subscriber;
}
}
};
}
#endif // UWS_WEBSOCKETDATA_H
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