Доброго дня уважаемые....
Решил поработать с сетью, выбор пал на
QNetworkAccessManagerПочитав документацию понял что нужно писать свою обертку над данным классом
чтобы я мог использовать в программе напрмер такой код
MyClass *http = new MyClass;
if(http->get("http://gogle.ru")) //Если запрос успешный, то ...
QString htmlBody = http->inbuff(); // Получаю html тело документиа
Иными словами задача состоит в том, чтобы выполнение программы приостанавливалось покуда не будет получен ответ от
http->get("http://gogle.ru")Я накидал код - обертку для QNetworkAccessManager
Прошу высказать ваши замечаеия и поделиться ссылками на подобные обертки для преобритения опыта, в которых так же реализованы HTTP запросы, приятно поковыряться в чужом коде и узнать для себя чтото новое. Буду рад выслушать ваши мнения и предложения...
Планирую подключить работу с тайм-аутом, HTTPS , прокси и скосками
rhttp.h
#ifndef RHTTP_H
#define RHTTP_H
#include <QObject>
#include <QByteArray>
#include <QNetworkAccessManager>
#include <QNetworkCookieJar>
#include <QNetworkReply>
#include <QEventLoop>
#include <QUrl>
#include <QPair>
#include <QTimer>
class RHttp : public QObject
{
Q_OBJECT
Q_PROPERTY(QByteArray m_inbuff READ inbuff)
Q_PROPERTY(int m_networkError READ networkError)
Q_PROPERTY(int m_httpStatusCode READ httpStatusCode)
Q_PROPERTY(QString m_httpReasonPhrase READ httpReasonPhrase)
Q_PROPERTY(bool m_autoRedirect READ autoRedirect WRITE setAutoRedirect)
Q_PROPERTY(bool m_ajax READ ajax WRITE setAjax)
Q_PROPERTY(const QList <QNetworkReply::RawHeaderPair> *m_listHeaders READ headersPair)
public:
explicit RHttp(QObject *parent = 0);
~RHttp();
bool get(const QString &uri);
bool post(const QString &uri, const QByteArray &data);
//Property functions
QByteArray inbuff() {return this->m_inbuff;}
int networkError() {return this->m_networkError;}
int httpStatusCode() {return this->m_httpStatusCode;}
QString httpReasonPhrase() {return this->m_httpReasonPhrase;}
bool autoRedirect() {return this->m_autoRedirect;}
void setAutoRedirect(bool val) {this->m_autoRedirect = val;}
bool ajax() {return this->m_ajax;}
void setAjax(bool val) {this->m_ajax = val;}
const QList <QNetworkReply::RawHeaderPair> *headersPair() {return this->m_listHeaders;}
QString headersString();
private:
QNetworkAccessManager *manager;
QNetworkCookieJar *cookieJar;
const QList <QNetworkReply::RawHeaderPair> *m_listHeaders;
QByteArray m_inbuff;
int m_networkError;
int m_httpStatusCode;
QString m_httpReasonPhrase;
bool m_autoRedirect;
bool m_ajax;
signals:
public slots:
};
#endif // RHTTP_H
rhttp.cpp
#include "rhttp.h"
//-------------------------------------------------------------
RHttp::RHttp(QObject *parent) :
QObject(parent)
{
this->manager = new QNetworkAccessManager(parent);
this->cookieJar = new QNetworkCookieJar(parent);
this->manager->setCookieJar(this->cookieJar);
this->m_autoRedirect = false;
this->m_ajax = false;
}
//-------------------------------------------------------------
RHttp::~RHttp()
{
this->manager->deleteLater();
}
//-------------------------------------------------------------
bool RHttp::get(const QString &uri)
{
//Clear
this->m_inbuff.clear();
this->m_httpStatusCode =0;
this->m_httpReasonPhrase.clear();
QUrl url(uri);
QEventLoop eventLoop;
QNetworkRequest request(url);
request.setRawHeader("Content-Type", "application/x-www-form-urlencoded");
request.setRawHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; rv:19.0) Gecko/20100101 Firefox/19.0");
request.setRawHeader("Accept-Language", "ru-RU,ru;q=0.8,en-US;q=0.5,en;q=0.3");
request.setRawHeader("charset", "utf-8");
request.setRawHeader("Connection", "keep-alive");
QNetworkReply *reply = this->manager->get(request);
QObject::connect(reply,SIGNAL(finished()),&eventLoop, SLOT(quit()));
QTimer::singleShot(30000, &eventLoop, SLOT(quit())); // TimeOut
eventLoop.exec(); //Waiting for request finished
//Save code of network connection
this->m_networkError = reply->error();
//If conection error - return false
if(reply->error() != QNetworkReply::NoError) return false;
//Save http code: 200, 304, 404, 401, etc
this->m_httpStatusCode = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
this->m_httpReasonPhrase = reply->attribute(QNetworkRequest::HttpReasonPhraseAttribute).toString();
//Processing of Http Status Code, currently 302
if(this->m_httpStatusCode == 302 && this->m_autoRedirect == true) {
QUrl reUrl = reply->attribute(QNetworkRequest::RedirectionTargetAttribute).toString();
if(reUrl.isRelative()) reUrl = url.resolved(reUrl).toString();
reply->deleteLater();
return this->get(reUrl.toString());
}
else //Save request answer (inbuff)
{
this->m_inbuff = reply->readAll();
this->m_listHeaders = &reply->rawHeaderPairs();
}
reply->deleteLater();
return true;
}
//-------------------------------------------------------------
bool RHttp::post(const QString &uri, const QByteArray &data)
{
//Clear
this->m_inbuff.clear();
this->m_httpStatusCode =0;
this->m_httpReasonPhrase.clear();
QUrl url(uri);
QEventLoop eventLoop;
QNetworkRequest request(url);
request.setRawHeader("Content-Type", "application/x-www-form-urlencoded");
request.setRawHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; rv:19.0) Gecko/20100101 Firefox/19.0");
request.setRawHeader("Accept-Language", "ru-RU,ru;q=0.8,en-US;q=0.5,en;q=0.3");
request.setRawHeader("charset", "utf-8");
request.setRawHeader("Connection", "keep-alive");
//Is Ajax request
if(this->m_ajax == true) {
this->m_ajax = false;
request.setRawHeader("X-Requested-With", "XMLHttpRequest");
}
QNetworkReply *reply = this->manager->post(request, data);
QObject::connect(reply,SIGNAL(finished()),&eventLoop, SLOT(quit()));
QTimer::singleShot(30000, &eventLoop, SLOT(quit())); // TimeOut
eventLoop.exec(); //Waiting for request finished
//Save code of network connection
this->m_networkError = reply->error();
//If conection error - return false
if(reply->error() != QNetworkReply::NoError) return false;
//Save http code: 200, 304, 404, 401, etc
this->m_httpStatusCode = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
this->m_httpReasonPhrase = reply->attribute(QNetworkRequest::HttpReasonPhraseAttribute).toString();
//Processing of Http Status Code, currently 302
if(this->m_httpStatusCode == 302 && this->m_autoRedirect == true) {
QUrl reUrl = reply->attribute(QNetworkRequest::RedirectionTargetAttribute).toString();
if(reUrl.isRelative()) reUrl = url.resolved(reUrl).toString();
reply->deleteLater();
return this->get(reUrl.toString());
}
else //Save request answer (inbuff)
{
this->m_inbuff = reply->readAll();
this->m_listHeaders = &reply->rawHeaderPairs();
}
reply->deleteLater();
return true;
}
//-------------------------------------------------------------
//Отобразить Header полученого заголовка в виде текста
QString RHttp::headersString()
{
QString headersString;
QNetworkReply::RawHeaderPair header;
headersString = QString::number(this->m_httpStatusCode);
headersString += " | ";
headersString += this->m_httpReasonPhrase;
headersString += "\r\n";
int size = this->m_listHeaders->size();
for(int i=0; i<size; ++i) {
header = this->m_listHeaders->at(i);
headersString += header.first;
headersString += ": ";
headersString += header.second;
headersString += "\r\n";
}
return headersString;
}
//-------------------------------------------------------------
