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void MainWindow::on_loginButton_clicked()
{
    ui->loginButton->setEnabled(false);
    QNetworkAccessManager *manager = new QNetworkAccessManager(0);
    QNetworkRequest request;

    request.setUrl(QUrl("https://accounts.google.com/ServiceLogin?uilel=3&service=youtube&passive=true&continue=http%3A%2F%2Fwww.youtube.com%2Fsignin%3Faction_handle_signin%3Dtrue%26nomobiletemp%3D1%26hl%3Dru_RU%26next%3D%252F%253Fnoredirect%253D1&hl=ru_RU&ltmpl=sso"));
    request.setRawHeader("Host", "accounts.google.com");
    request.setRawHeader("User-Agent", "Mozilla/5.0 (X11; Linux x86_64; rv:9.0) Gecko/20120112 Firefox/9.0");
    request.setRawHeader("Accept", "text/html");
    request.setRawHeader("Accept-Charset", "windows-1251,utf-8;");
    request.setRawHeader("Referer", "http://www.youtube.com/");
    qDebug() << "manager";
    QNetworkReply *reply = manager->get(request);

    QObject::connect(manager, SIGNAL(finished(QNetworkReply*)), this, SLOT(finishedSlot(QNetworkReply*)));
}

void MainWindow::finishedSlot(QNetworkReply *reply)
{
    QNetworkAccessManager *manager = new QNetworkAccessManager(0);
    QString replyHtml = QString::fromUtf8(reply->readAll());

    QRegExp dsh("id=\"dsh\" value=\"(.*)\""); dsh.setPatternSyntax(QRegExp::RegExp2);  dsh.setMinimal(true); dsh.indexIn(replyHtml);
    QString dshStr = dsh.cap(1);

    QRegExp galx("name=\"GALX\".*value=\"(.*)\""); galx.setPatternSyntax(QRegExp::RegExp2); galx.setMinimal(true); galx.indexIn(replyHtml);
    QString galxStr = galx.cap(1);

    ui->plainTextEdit->appendPlainText(dshStr);
    ui->plainTextEdit->appendPlainText(galxStr);

    QNetworkRequest request;
    request.setUrl(QUrl("https://accounts.google.com/ServiceLoginAuth"));
    QByteArray  postData;
        postData.append("continue=http://www.youtube.com/signin?action_handle_signin=true&nomobiletemp=1&hl=ru_RU&next=%2F");
        postData.append("service=youtube");
        postData.append("uilel=3");
        postData.append("dsh="+dshStr);
        postData.append("ltmpl=sso");
        postData.append("hl=ru_RU");
        postData.append("ltmpl=sso");
        postData.append("GALX="+galxStr);
        postData.append("pstMsg=1");
        postData.append("dnConn=");
        postData.append("checkConnection=youtube:487:1");
        postData.append("checkedDomains=youtube");
        postData.append("timeStmp=");
        postData.append("secTok=");
        postData.append("Email=email");
        postData.append("Passwd=passwd");
        postData.append("signIn=Войти");
        postData.append("rmShown=1");
    QNetworkRequest request2;

    request2.setUrl(QUrl("https://accounts.google.com/ServiceLoginAuth"));
    request2.setRawHeader("Host", "accounts.google.com");
    request2.setRawHeader("User-Agent", "Mozilla/5.0 (X11; Linux x86_64; rv:9.0) Gecko/20120112 Firefox/9.0");
    request2.setRawHeader("Accept", "text/html");
    request2.setRawHeader("Accept-Charset", "windows-1251,utf-8;");
    request2.setRawHeader("Referer", "https://accounts.google.com/ServiceLogin?uilel=3&service=youtube&passive=true&continue=http%3A%2F%2Fwww.youtube.com%2Fsignin%3Faction_handle_signin%3Dtrue%26nomobiletemp%3D1%26hl%3Dru_RU%26next%3D%252F%253Fnoredirect%253D1&hl=ru_RU&ltmpl=sso");
    qDebug() << "manager";
    reply = manager->post(request2, postData);

    QObject::connect(manager, SIGNAL(finished(QNetworkReply*)), this, SLOT(finishedSlot2(QNetworkReply*)));
}

void MainWindow::finishedSlot2(QNetworkReply *reply)
{
    ui->plainTextEdit->appendPlainText(QString::fromUtf8(reply->readAll()));
    ui->plainTextEdit->appendPlainText(reply->rawHeader("Set-Cookie"));
}