mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-01 00:57:28 +08:00
138 lines
4.1 KiB
C++
138 lines
4.1 KiB
C++
/*
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* MIT License
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*
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* Copyright (c) 2016 xiongziliang <771730766@qq.com>
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*
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* This file is part of ZLMediaKit(https://github.com/xiongziliang/ZLMediaKit).
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef ZLMEDIAKIT_WEBSOCKETSPLITTER_H
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#define ZLMEDIAKIT_WEBSOCKETSPLITTER_H
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#include <cstdint>
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#include <string>
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#include <vector>
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#include <memory>
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using namespace std;
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namespace ZL {
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namespace Http {
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class WebSocketHeader {
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public:
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typedef std::shared_ptr<WebSocketHeader> Ptr;
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typedef enum {
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CONTINUATION = 0x0,
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TEXT = 0x1,
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BINARY = 0x2,
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RSV3 = 0x3,
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RSV4 = 0x4,
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RSV5 = 0x5,
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RSV6 = 0x6,
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RSV7 = 0x7,
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CLOSE = 0x8,
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PING = 0x9,
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PONG = 0xA,
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CONTROL_RSVB = 0xB,
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CONTROL_RSVC = 0xC,
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CONTROL_RSVD = 0xD,
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CONTROL_RSVE = 0xE,
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CONTROL_RSVF = 0xF
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} Type;
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public:
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WebSocketHeader() : _mask(4){}
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virtual ~WebSocketHeader(){}
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public:
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bool _fin;
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uint8_t _reserved;
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Type _opcode;
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bool _mask_flag;
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uint64_t _playload_len;
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vector<uint8_t > _mask;
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};
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class WebSocketSplitter : public WebSocketHeader{
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public:
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WebSocketSplitter(){}
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virtual ~WebSocketSplitter(){}
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/**
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* 输入数据以便解包webSocket数据以及处理粘包问题
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* 可能触发onWebSocketDecodeHeader和onWebSocketDecodePlayload回调
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* @param data 需要解包的数据，可能是不完整的包或多个包
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* @param len 数据长度
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*/
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void decode(uint8_t *data,uint64_t len);
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/**
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* 编码一个数据包
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* 将触发2次onWebSocketEncodeData回调
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* 第一次是数据头，第二次是负载数据
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* @param header 数据头
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* @param data 负载数据
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* @param len 负载数据长度
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*/
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void encode(const WebSocketHeader &header,uint8_t *data,const uint64_t len);
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protected:
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/**
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* 收到一个webSocket数据包包头，后续将继续触发onWebSocketDecodePlayload回调
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* @param header 数据包头
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*/
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virtual void onWebSocketDecodeHeader(const WebSocketHeader &header) {};
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/**
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* 收到webSocket数据包负载
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* @param header 数据包包头
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* @param ptr 负载数据指针
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* @param len 负载数据长度
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* @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
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*/
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virtual void onWebSocketDecodePlayload(const WebSocketHeader &header, const uint8_t *ptr, uint64_t len, uint64_t recved) {};
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/**
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* 接收到完整的一个webSocket数据包后回调
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* @param header 数据包包头
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*/
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virtual void onWebSocketDecodeComplete(const WebSocketHeader &header) {};
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/**
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* websocket数据编码回调
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* @param ptr 数据指针
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* @param len 数据指针长度
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*/
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virtual void onWebSocketEncodeData(const uint8_t *ptr,uint64_t len){};
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private:
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void onPlayloadData(uint8_t *data,uint64_t len);
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private:
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string _remain_data;
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int _mask_offset = 0;
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bool _got_header = false;
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uint64_t _playload_offset = 0;
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};
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} /* namespace Http */
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} /* namespace ZL */
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#endif //ZLMEDIAKIT_WEBSOCKETSPLITTER_H
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