mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
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90 lines
2.5 KiB
C++
90 lines
2.5 KiB
C++
/*
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* Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
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*
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* This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
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*
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* Use of this source code is governed by MIT license that can be found in the
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* LICENSE file in the root of the source tree. All contributing project authors
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* may be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef ZLMEDIAKIT_HTTPREQUESTSPLITTER_H
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#define ZLMEDIAKIT_HTTPREQUESTSPLITTER_H
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#include <string>
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#include "Network/Buffer.h"
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namespace mediakit {
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class HttpRequestSplitter {
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public:
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HttpRequestSplitter() = default;
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virtual ~HttpRequestSplitter() = default;
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/**
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* 添加数据
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* @param data 需要添加的数据
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* @param len 数据长度
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* @warning 实际内存需保证不小于 len + 1, 内部使用 strstr 进行查找, 为防止查找越界, 会在 @p len + 1 的位置设置 '\0' 结束符.
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*/
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virtual void input(const char *data, size_t len);
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/**
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* 恢复初始设置
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*/
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void reset();
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/**
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* 剩余数据大小
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*/
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size_t remainDataSize();
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/**
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* 获取剩余数据指针
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*/
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const char *remainData() const;
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protected:
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/**
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* 收到请求头
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* @param data 请求头数据
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* @param len 请求头长度
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*
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* @return 请求头后的content长度,
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* <0 : 代表后面所有数据都是content，此时后面的content将分段通过onRecvContent函数回调出去
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* 0 : 代表为后面数据还是请求头,
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* >0 : 代表后面数据为固定长度content,此时将缓存content并等到所有content接收完毕一次性通过onRecvContent函数回调出去
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*/
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virtual ssize_t onRecvHeader(const char *data,size_t len) = 0;
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/**
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* 收到content分片或全部数据
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* onRecvHeader函数返回>0,则为全部数据
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* @param data content分片或全部数据
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* @param len 数据长度
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*/
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virtual void onRecvContent(const char *data,size_t len) {};
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/**
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* 判断数据中是否有包尾
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* @param data 数据指针
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* @param len 数据长度
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* @return nullptr代表未找到包位，否则返回包尾指针
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*/
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virtual const char *onSearchPacketTail(const char *data, size_t len);
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/**
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* 设置content len
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*/
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void setContentLen(ssize_t content_len);
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private:
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ssize_t _content_len = 0;
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size_t _remain_data_size = 0;
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toolkit::BufferLikeString _remain_data;
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};
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} /* namespace mediakit */
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#endif //ZLMEDIAKIT_HTTPREQUESTSPLITTER_H
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