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ZLMediaKit
Commit 644905a3 by xiongziliang
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实现websocket客户端模板

parent 30950757
正在显示 包含 85 行增加 和 289 行删除
ZLToolKit @ 91246bb0
Subproject commit 0b406073125080ab8edd13ee7c14e573e54baa35 Subproject commit 91246bb01475c7336040a4b7ec35d0584887f365
src/Http/WebSocketClient.cpp deleted 100644 → 0
#include "WebSocketClient.h"
int mediakit::WebSocketClient::send(const string& buf)
{
if (_sock)
{
if (_WSClientStatus == WORKING)
{
_session->send(buf);
return 0;
}
else
{
return -1;
}
}
}
void mediakit::WebSocketClient::clear()
{
_method.clear();
_path.clear();
_parser.Clear();
_recvedBodySize = 0;
_totalBodySize = 0;
_aliveTicker.resetTime();
_chunkedSplitter.reset();
HttpRequestSplitter::reset();
}
const std::string & mediakit::WebSocketClient::responseStatus() const
{
return _parser.Url();
}
const mediakit::WebSocketClient::HttpHeader & mediakit::WebSocketClient::responseHeader() const
{
return _parser.getValues();
}
const mediakit::Parser& mediakit::WebSocketClient::response() const
{
return _parser;
}
const std::string & mediakit::WebSocketClient::getUrl() const
{
return _url;
}
int64_t mediakit::WebSocketClient::onResponseHeader(const string &status, const HttpHeader &headers)
{
DebugL << status;
//无Content-Length字段时默认后面全是content
return -1;
}
void mediakit::WebSocketClient::onResponseBody(const char *buf, int64_t size, int64_t recvedSize, int64_t totalSize)
{
DebugL << size << " " << recvedSize << " " << totalSize;
}
void mediakit::WebSocketClient::onResponseCompleted()
{
DebugL;
}
int64_t mediakit::WebSocketClient::onRecvHeader(const char *data, uint64_t len)
{
_parser.Parse(data);
if (_parser.Url() == "101")
{
switch (_WSClientStatus)
{
case HANDSHAKING:
{
StrCaseMap& valueMap = _parser.getValues();
auto key = valueMap.find("Sec-WebSocket-Accept");
if (key != valueMap.end() && key->second.length() > 0) {
onConnect(SockException());
}
break;
}
}
return -1;
}
else
{
shutdown(SockException(Err_shutdown, _parser.Url().c_str()));
return 0;
}
return -1;
}
void mediakit::WebSocketClient::onRecvContent(const char *data, uint64_t len)
{
if (_chunkedSplitter) {
_chunkedSplitter->input(data, len);
return;
}
auto recvedBodySize = _recvedBodySize + len;
if (_totalBodySize < 0) {
//不限长度的content,最大支持INT64_MAX个字节
onResponseBody(data, len, recvedBodySize, INT64_MAX);
_recvedBodySize = recvedBodySize;
return;
}
//固定长度的content
if (recvedBodySize < _totalBodySize) {
//content还未接收完毕
onResponseBody(data, len, recvedBodySize, _totalBodySize);
_recvedBodySize = recvedBodySize;
return;
}
//content接收完毕
onResponseBody(data, _totalBodySize - _recvedBodySize, _totalBodySize, _totalBodySize);
bool biggerThanExpected = recvedBodySize > _totalBodySize;
onResponseCompleted_l();
if (biggerThanExpected) {
//声明的content数据比真实的小，那么我们只截取前面部分的并断开链接
shutdown(SockException(Err_shutdown, "http response content size bigger than expected"));
}
}
void mediakit::WebSocketClient::onConnect(const SockException &ex)
{
_aliveTicker.resetTime();
if (ex) {
onDisconnect(ex);
return;
}
//先假设http客户端只会接收一点点数据（只接受http头，节省内存）
_sock->setReadBuffer(std::make_shared<BufferRaw>(1 * 1024));
_totalBodySize = 0;
_recvedBodySize = 0;
HttpRequestSplitter::reset();
_chunkedSplitter.reset();
if (_WSClientStatus == WSCONNECT)
{
//Websocket握手
string random = get_random(16);
auto Sec_WebSocket_Key = encodeBase64(SHA1::encode_bin(random));
_key = Sec_WebSocket_Key;
string p = generate_websocket_client_handshake(_ip.c_str(), _port, _url.c_str(), _key.c_str());
TcpClient::send(p);
_WSClientStatus = HANDSHAKING;
}
else if (_WSClientStatus == HANDSHAKING)
{
_WSClientStatus = WORKING;
}
onFlush();
}
void mediakit::WebSocketClient::onRecv(const Buffer::Ptr &pBuf)
{
_aliveTicker.resetTime();
if (_WSClientStatus == HANDSHAKING || _WSClientStatus == WSCONNECT)
HttpRequestSplitter::input(pBuf->data(), pBuf->size());
else if (_WSClientStatus == WORKING)
{
WebSocketSplitter::decode((uint8_t *)pBuf->data(), pBuf->size());
}
}
void mediakit::WebSocketClient::onErr(const SockException &ex)
{
_session->onError(ex);
onDisconnect(ex);
}
void mediakit::WebSocketClient::onManager()
{
if (_WSClientStatus != WORKING)
{
if (_fTimeOutSec > 0 && _aliveTicker.elapsedTime() > _fTimeOutSec * 1000) {
//超时
shutdown(SockException(Err_timeout, "ws server respone timeout"));
}
}
else
_session->onManager();
}
std::string mediakit::WebSocketClient::generate_websocket_client_handshake(const char* ip, uint16_t port, const char * path, const char * key)
{
/**
* @brief 业务数据被分片的单片最大大小， 等于 65535 - 14 - 1
*/
#define DATA_FRAME_MAX_LEN 65520
#define HANDSHAKE_SIZE 1024
char buf[HANDSHAKE_SIZE] = { 0 };
snprintf(buf, HANDSHAKE_SIZE,
"GET %s HTTP/1.1\r\n"
"Host: %s:%d\r\n"
"Upgrade: websocket\r\n"
"Connection: Upgrade\r\n"
"Sec-WebSocket-Key: %s\r\n"
"Sec-WebSocket-Version: 13\r\n"
"\r\n",
path, ip, port, key);
string temBuf(buf);
return temBuf;
}
std::string mediakit::WebSocketClient::get_random(size_t n)
{
random_device rd;
_StrPrinter printer;
for (int i = 0; i < n; i++)
{
unsigned int rnd = rd();
printer << rnd % 9;
}
return string(printer);
}
void mediakit::WebSocketClient::onWebSocketDecodeHeader(const WebSocketHeader &packet)
{
//新包，原来的包残余数据清空掉
_remian_data.clear();
if (_firstPacket) {
//这是个WebSocket会话而不是普通的Http会话
_firstPacket = false;
//此处截取数据并进行websocket协议打包
}
}
void mediakit::WebSocketClient::onWebSocketDecodePlayload(const WebSocketHeader &packet, const uint8_t *ptr, uint64_t len, uint64_t recved)
{
_remian_data.append((char *)ptr, len);
}
void mediakit::WebSocketClient::onWebSocketDecodeComplete(const WebSocketHeader &header_in)
{
WebSocketHeader& header = const_cast<WebSocketHeader&>(header_in);
auto flag = header._mask_flag;
header._mask_flag = false;
switch (header._opcode) {
case WebSocketHeader::CLOSE: {
shutdown(SockException(Err_timeout, "session timeouted"));
}
break;
case WebSocketHeader::PING: {
const_cast<WebSocketHeader&>(header)._opcode = WebSocketHeader::PONG;
WebSocketSplitter::encode(header, (uint8_t *)_remian_data.data(), _remian_data.size());
}
break;
case WebSocketHeader::CONTINUATION: {
}
break;
case WebSocketHeader::TEXT:
case WebSocketHeader::BINARY: {
BufferString::Ptr buffer = std::make_shared<BufferString>(_remian_data);
_session->onRecv(buffer);
}
break;
default:
break;
}
_remian_data.clear();
header._mask_flag = flag;
}
void mediakit::WebSocketClient::onWebSocketEncodeData(const uint8_t *ptr, uint64_t len)
{
TcpClient::send(string((char*)ptr, len));
}
void mediakit::WebSocketClient::onResponseCompleted_l()
{
_totalBodySize = 0;
_recvedBodySize = 0;
onResponseCompleted();
}
tests/test_wsClient.cpp 0 → 100644
/*
* 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.
*/
#include <signal.h>
#include <string>
#include <iostream>
#include "Util/MD5.h"
#include "Util/logger.h"
#include "Http/WebSocketClient.h"
using namespace std;
using namespace toolkit;
using namespace mediakit;
class EchoTcpClient : public TcpClient {
public:
EchoTcpClient(const EventPoller::Ptr &poller = nullptr){
InfoL;
}
~EchoTcpClient() override {
InfoL;
}
protected:
void onRecv(const Buffer::Ptr &pBuf) override {
DebugL << pBuf->toString();
}
//被动断开连接回调
void onErr(const SockException &ex) override {
WarnL << ex.what();
}
//tcp连接成功后每2秒触发一次该事件
void onManager() override {
send("echo test!");
DebugL << "send echo test";
}
//连接服务器结果回调
void onConnect(const SockException &ex) override{
DebugL << ex.what();
}
//数据全部发送完毕后回调
void onFlush() override{
DebugL;
}
};
int main(int argc, char *argv[]) {
//设置退出信号处理函数
static semaphore sem;
signal(SIGINT, [](int) { sem.post(); });// 设置退出信号
//设置日志
Logger::Instance().add(std::make_shared<ConsoleChannel>());
Logger::Instance().setWriter(std::make_shared<AsyncLogWriter>());
WebSocketClient<EchoTcpClient>::Ptr client = std::make_shared<WebSocketClient<EchoTcpClient> >();
client->startConnect("127.0.0.1",80);
sem.wait();
return 0;
}
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