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QByteArray params;
    QNetworkAccessManager accessManager;
    QNetworkRequest request;
    QUrl url("http://jiffyplace.com/photo.php?a=1&b=2");
    request.setUrl(url);
    request.setRawHeader("Host", "jiffyplace.com");
    request.setRawHeader("Cache-Control", "no-cache");
    request.setRawHeader("Accept","*/*");

    params.append("a=ok");
    params.append("b=ok2");

    reply = accessManager.post(request, "a=asd");

request.setHeader(QNetworkRequest::ContentLengthHeader, parmas.length());

Request::Request(bool syn, QObject *parent) :
    QObject(parent),
    synhro(syn)
{
    manager=new QNetworkAccessManager(this);
    QObject::connect(manager, SIGNAL(finished(QNetworkReply*)), this, SLOT(sent(QNetworkReply*)));
}

void Request::setParametersForRequetsSlot(const QByteArray &method, const QByteArray &addr, QList<QByteArray> &headers, const QByteArray &body)
{
    p_method=method;
    p_addr=addr;
    p_headers=headers;
    p_body=body;
}

void Request::sendRequest()
{
    sendRequest(p_method, p_addr, p_headers, p_body);
}

void Request::sendRequest(const QByteArray &method, const QByteArray &addr, QList<QByteArray> &headers, const QByteArray &body)
{
    int type=0;
    QByteArray ba=method.simplified().toLower();
    if(ba.contains("put"))type=1;
    else if(ba.contains("get"))type=2;
    //post - default

    QNetworkRequest request;
    for(int i=0;i<headers.count();i++){
        ba=headers.at(i);
        int x=ba.indexOf(": ");
        if(x<0)continue;//игнорирование неверной строчки
        if(x==ba.length()-2)continue;
        request.setRawHeader(ba.left(x),ba.right(ba.length()-x-2));
    }
    if(type!=2) request.setHeader(QNetworkRequest::ContentLengthHeader, body.length()); //не гет
    request.setUrl(QUrl(addr));

    replyBody.clear();
    replyHeaders.clear();
    ended=false;

    switch(type){
    case 0: manager->post(request,body);
        break;
    case 1: manager->put(request, body);
        break;
    case 2: manager->get(request);
    }

    //подождать
    if(synhro) while(!ended)QCoreApplication::processEvents();
}

void Request::sent(QNetworkReply *reply)
{
    replyBody=reply->readAll();
    replyHeaders=reply->rawHeaderList();
    for(int i=0;i<replyHeaders.count();i++){
        replyHeaders[i]=replyHeaders.at(i)+": "+reply->rawHeader(replyHeaders.at(i));
    }
    replyError=reply->error();
    replyErrorString=reply->errorString();
    replyURL=reply->url().toString();
    ended=true;
    emit finished();
}

#ifndef REQUEST_H
#define REQUEST_H

#include <QObject>
#include <QList>
#include <QNetworkAccessManager>
#include <QNetworkReply>

class Request : public QObject
{
    Q_OBJECT
public:
    explicit Request(bool syn=true, QObject *parent = 0);
    void sendRequest(const QByteArray &method, const QByteArray &addr, QList <QByteArray> &headers, const QByteArray &body);
    void setParametersForRequetsSlot(const QByteArray &method, const QByteArray &addr, QList <QByteArray> &headers, const QByteArray &body);
    const QByteArray& getReply(){
        return replyBody;
    }

    QList<QByteArray> getReplyHeaders(){
        return replyHeaders;
    }

    int getError(){
        return replyError;
    }

    QString getErrorString(){
        return replyErrorString;
    }

    QString getReplyURL(){
        return replyURL;
    }

    void synchronous(bool s=true){
        synhro=s;
    }

private:
    QNetworkAccessManager *manager;
    QByteArray replyBody;
    QList<QByteArray> replyHeaders;
    bool ended;
    int replyError;
    QString replyErrorString;
    QString replyURL;
    bool synhro;

    QByteArray p_method;
    QByteArray p_addr;
    QList <QByteArray> p_headers;
    QByteArray p_body;

public slots:
    void sendRequest();

private slots:
    void sent(QNetworkReply *reply);

signals:
    void finished();

};

#endif // REQUEST_H

params.append("--AyV04a\r\n");
    params.append("content-disposition: ");
    params.append("form-data; name=\"p1\"\r\n");
    params.append("\r\n");
    params.append("Konstantin");
    params.append("\r\n");

    params.append("--AyV04a\r\n");
    params.append("content-disposition: ");
    params.append("file; name=\"file\"; filename=\""+file.fileName()+"\"\r\n");
    params.append("Content-Transfer-Encoding: binary\r\n");
    params.append("\r\n");
    params.append(file.readAll());
    params.append("\r\n");
    params.append("--AyV04a--");
    request.setHeader(QNetworkRequest::ContentLengthHeader, params.length());

params.append("--AyV04a\r\n");
    params.append("content-disposition: ");
    params.append("form-data; name=\"p1\"\r\n");
    params.append("\r\n");
    params.appe...

params = "a=1&b=2";