Qt multi-threaded network module

@version: 2.1.1
@Author: Vilas Wang
@Contact: QQ451930733 | 451930733@qq.com

** QtMultiThreadNetwork is free libraries licensed under the term of LGPL v3.0. If you use QtMultiThreadNetwork or its constituent libraries, you must adhere to the terms of the license in question. **

目前该库支持在windows平台下编译成功，其它平台若有编译不过，请自行增加兼容代码。 openssl x86 x64库下载地址：https://github.com/VilasWang/3rd_Dev_Library.git

Detailed Description

The Qt multi-threaded network module is a wrapper of Qt Network module, and combine with thread-pool to realize multi-threaded networking.

Multitask concurrent(Each request task is executed in different threads).
Both single request and batch request mode are supported.
Large file multi-thread downloading supported. (The thread here refers to the download channel. Download speed is faster)
HTTP(S)/FTP protocol supported.
Multiple request methods supported. (GET/POST/PUT/DELETE/HEAD)
Asynchronous API.
Thread-safe.

Note: You must call NetworkManager::initialize() before use, and call NetworkManager::unInitialize() before application quit. That must be called in the main thread.

Qt多线程网络模块是对Qt Network的封装，并且结合线程池以实现多线程网络请求，

多任务并发执行（每个请求任务在不同的线程中执行）
支持单请求任务或批处理请求两种请求模式
支持大文件多线程下载模式（这里的线程是指下载的通道。多个通道同时下载, 下载速度更快）
支持HTTP(S)/FTP协议
支持多种请求方式（GET/POST/PUT/DELETE/HEAD）
异步调用
所有方法线程安全

注意: 在使用之前，你必须先调用NetworkManager::initialize()，并且在程序退出前调用NetworkManager::unInitialize(). 初始化和反初始化都必须在主线程中被调用。

How to use

#include "networkdefs.h"
#include "networkmanager.h"
#include "networkreply.h"

Main thread：

//使用之前调用
NetworkManager::initialize();

//程序退出前调用
NetworkManager::unInitialize();

How to download a file by using Qt multi-threaded network module? (Or otehr request?)

Download file:

RequestTask task;
task.eType = RequestType::Download;
task.url = QString("http://pic2.52pk.com/files/131112/2255194_1405292P.png");
task.strReqArg = QString("D:/Download");
task.bShowProgress = true;
task.bReplaceFileIfExist = true;
task.bTryAgainIfFailed = true;
task.nMaxRedirectionCount = 5;

NetworkReply *pReply = NetworkManager::globalInstance()->addRequest(task);
if (nullptr != pReply)
{
	connect(pReply, &NetworkReply::requestFinished, this, &T::onRequestFinished);
}

Upload file:

RequestTask task;
task.url = QString("http://127.0.0.1:80/_php/upload.php?filename=upload/test.png");
task.eType = RequestType::Upload;
task.strReqArg = QString("resources/1.png"); //local file path
task.bShowProgress = true;
task.bTryAgainIfFailed = true;
task.nMaxRedirectionCount = 5;
task.bUploadUsePut = true;

NetworkReply *pReply = NetworkManager::globalInstance()->addRequest(task);
if (nullptr != pReply)
{
	connect(pReply, &NetworkReply::requestFinished, this, &T::onRequestFinished);
}

GET method:

RequestTask task;
task.url = QString("http://m.kugou.com/singer/list/88?json=true");
task.eType = RequestType::Get;
task.bTryAgainIfFailed = true;
task.nMaxRedirectionCount = 5;

NetworkReply *pReply = NetworkManager::globalInstance()->addRequest(task);
if (nullptr != pReply)
{
	connect(pReply, &NetworkReply::requestFinished, this, &T::onRequestFinished);
}

POST method:

RequestTask task;
task.url = QString("https://passportservice.7fgame.com/HttpService/PlatService.ashx");
task.eType = RequestType::Post;
task.strReqArg = "userId=121892674&userName=33CxghNmt1FhAA==&st=QQBnAEEAQQBBAEUATAB2AFEAdwBjAEEAQQBBAEEAQQBBAEEAQQBBAEEATAB2AFAANwBoAE4AcwBJAC8AbwBWAFMAQQArAEQAVgBIADIAdgAyAHcARgBRAGYANABJAHkAOQA3AFAAYQBkAFMARwBoAEoAKwBUAEoAcAAzADkAVgBYAFYAMwBDAE4AVABiAHEAZQB3AE4AMAANAAoAOABlAHUANQBBAHMAUwBYAFEAbQAyAFUAWQBmAHEAMgA1ADkAcQBvAG4AZQBCAFEAYgB5AE8ANwAyAFQAMQB0AGwARwBIADYAdAB1AGYAYQBxAEoAMwBnAFUARwA4AGoAdQA5AGsAOQBzAFoAYQB1AHAARwBjAE8ANABnADIAegBnADIANgB1AEcANwBoAHAAUwBHADIAVQANAAoAWQBmAHEAMgA1ADkAcQBvAG4AZQBCAFEAYgB5AE8ANwAyAFQAMAA9AA==";
task.bTryAgainIfFailed = true;
task.nMaxRedirectionCount = 5;

NetworkReply *pReply = NetworkManager::globalInstance()->addRequest(task);
if (nullptr != pReply)
{
	connect(pReply, &NetworkReply::requestFinished, this, &T::onRequestFinished);
}

DELETE method:

RequestTask task;
task.url = QString("http://127.0.0.1:80/_php/delete.php?filename=upload/test.txt");
task.eType = RequestType::Delete;
task.bTryAgainIfFailed = true;

NetworkReply *pReply = NetworkManager::globalInstance()->addRequest(task);
if (nullptr != pReply)
{
	connect(pReply, &NetworkReply::requestFinished, this, &T::onRequestFinished);
}

HEAD method:

RequestTask task;
task.url = QString("http://iso.mirrors.ustc.edu.cn/qtproject/archive/qt/5.12/5.12.1/single/qt-everywhere-src-5.12.1.zip");
task.eType = RequestType::Head;
task.bTryAgainIfFailed = true;

NetworkReply *pReply = NetworkManager::globalInstance()->addRequest(task);
if (nullptr != pReply)
{
	connect(pReply, &NetworkReply::requestFinished, this, &T::onRequestFinished);
}

How to download a batch of files by using Qt multi-threaded network module? (such as updating application)

connect(NetworkManager::globalInstance(), &NetworkManager::batchDownloadProgress,
	this, &T::onBatchDownloadProgress);
	
connect(NetworkManager::globalInstance(), &NetworkManager::batchUploadProgress,
	this, &T::onBatchUploadProgress);

BatchRequestTask tasks;
RequestTask task;
foreach (const QString& strUrl, strlstUrl)
{
	task.url = QDir::fromNativeSeparators(strUrl);
	task.eType = RequestType::Download;
	task.strReqArg = QString("save file dir");
	task.bShowProgress = true;
	tasks.append(std::move(task));
}

A batch of requests corresponding to one NetworkReply object

quint64 uiBatchId = 0;
NetworkReply *pReply = NetworkManager::globalInstance()->addBatchRequest(tasks, uiBatchId);
qDebug() << "uiBatchId: " << uiBatchId;
if (nullptr != pReply)
{
	connect(pReply, &NetworkReply::requestFinished, this, &T::onRequestFinished);
}

How to stop request?

Stop a request

quint64 uiTaskId = 1;
NetworkManager::globalInstance()->stopRequest(uiTaskId);

Stop a batch of requests

quint64 uiTaskBatchId = 1;
NetworkManager::globalInstance()->stopBatchRequests(uiTaskBatchId);

Stop all requests