mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-01 09:01:33 +08:00
136 lines
4.1 KiB
C++
136 lines
4.1 KiB
C++
/*
|
||
* MIT License
|
||
*
|
||
* Copyright (c) 2016-2019 xiongziliang <771730766@qq.com>
|
||
*
|
||
* This file is part of ZLMediaKit(https://github.com/xiongziliang/ZLMediaKit).
|
||
*
|
||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
* of this software and associated documentation files (the "Software"), to deal
|
||
* in the Software without restriction, including without limitation the rights
|
||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||
* copies of the Software, and to permit persons to whom the Software is
|
||
* furnished to do so, subject to the following conditions:
|
||
*
|
||
* The above copyright notice and this permission notice shall be included in all
|
||
* copies or substantial portions of the Software.
|
||
*
|
||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||
* SOFTWARE.
|
||
*/
|
||
|
||
#ifndef ZLMEDIAKIT_WEBSOCKETSPLITTER_H
|
||
#define ZLMEDIAKIT_WEBSOCKETSPLITTER_H
|
||
|
||
#include <cstdint>
|
||
#include <string>
|
||
#include <vector>
|
||
#include <memory>
|
||
using namespace std;
|
||
|
||
|
||
namespace mediakit {
|
||
|
||
class WebSocketHeader {
|
||
public:
|
||
typedef std::shared_ptr<WebSocketHeader> Ptr;
|
||
typedef enum {
|
||
CONTINUATION = 0x0,
|
||
TEXT = 0x1,
|
||
BINARY = 0x2,
|
||
RSV3 = 0x3,
|
||
RSV4 = 0x4,
|
||
RSV5 = 0x5,
|
||
RSV6 = 0x6,
|
||
RSV7 = 0x7,
|
||
CLOSE = 0x8,
|
||
PING = 0x9,
|
||
PONG = 0xA,
|
||
CONTROL_RSVB = 0xB,
|
||
CONTROL_RSVC = 0xC,
|
||
CONTROL_RSVD = 0xD,
|
||
CONTROL_RSVE = 0xE,
|
||
CONTROL_RSVF = 0xF
|
||
} Type;
|
||
public:
|
||
WebSocketHeader() : _mask(4){}
|
||
virtual ~WebSocketHeader(){}
|
||
public:
|
||
bool _fin;
|
||
uint8_t _reserved;
|
||
Type _opcode;
|
||
bool _mask_flag;
|
||
uint64_t _playload_len;
|
||
vector<uint8_t > _mask;
|
||
};
|
||
|
||
class WebSocketSplitter : public WebSocketHeader{
|
||
public:
|
||
WebSocketSplitter(){}
|
||
virtual ~WebSocketSplitter(){}
|
||
|
||
/**
|
||
* 输入数据以便解包webSocket数据以及处理粘包问题
|
||
* 可能触发onWebSocketDecodeHeader和onWebSocketDecodePlayload回调
|
||
* @param data 需要解包的数据，可能是不完整的包或多个包
|
||
* @param len 数据长度
|
||
*/
|
||
void decode(uint8_t *data,uint64_t len);
|
||
|
||
/**
|
||
* 编码一个数据包
|
||
* 将触发2次onWebSocketEncodeData回调
|
||
* 第一次是数据头，第二次是负载数据
|
||
* @param header 数据头
|
||
* @param data 负载数据
|
||
* @param len 负载数据长度
|
||
*/
|
||
void encode(const WebSocketHeader &header,uint8_t *data,const uint64_t len);
|
||
protected:
|
||
/**
|
||
* 收到一个webSocket数据包包头，后续将继续触发onWebSocketDecodePlayload回调
|
||
* @param header 数据包头
|
||
*/
|
||
virtual void onWebSocketDecodeHeader(const WebSocketHeader &header) {};
|
||
|
||
/**
|
||
* 收到webSocket数据包负载
|
||
* @param header 数据包包头
|
||
* @param ptr 负载数据指针
|
||
* @param len 负载数据长度
|
||
* @param recved 已接收数据长度(包含本次数据长度)，等于header._playload_len时则接受完毕
|
||
*/
|
||
virtual void onWebSocketDecodePlayload(const WebSocketHeader &header, const uint8_t *ptr, uint64_t len, uint64_t recved) {};
|
||
|
||
|
||
/**
|
||
* 接收到完整的一个webSocket数据包后回调
|
||
* @param header 数据包包头
|
||
*/
|
||
virtual void onWebSocketDecodeComplete(const WebSocketHeader &header) {};
|
||
|
||
/**
|
||
* websocket数据编码回调
|
||
* @param ptr 数据指针
|
||
* @param len 数据指针长度
|
||
*/
|
||
virtual void onWebSocketEncodeData(const uint8_t *ptr,uint64_t len){};
|
||
private:
|
||
void onPlayloadData(uint8_t *data,uint64_t len);
|
||
private:
|
||
string _remain_data;
|
||
int _mask_offset = 0;
|
||
bool _got_header = false;
|
||
uint64_t _playload_offset = 0;
|
||
};
|
||
|
||
} /* namespace mediakit */
|
||
|
||
|
||
#endif //ZLMEDIAKIT_WEBSOCKETSPLITTER_H
|