definition of my class httpproxythreadbrowser

#include "httpproxythreadbrowser.h"
#include "proxyconstants.h"

HttpProxyThreadBrowser::HttpProxyThreadBrowser(QTcpSocket  outgoingSocket,QTcpSocket browserSocket,QObject *parent) :
    QThread(parent)
{
    this->outgoingSocket.setSocketDescriptor(outgoingSocket.socketDescriptor());
    this->browserSocket.setSocketDescriptor(browserSocket.socketDescriptor());
}

void HttpProxyThreadBrowser::run(){
    QByteArray outgoingdata;

    QDataStream in(&browserSocket);
    QDataStream out(&outgoingdata, QIODevice::WriteOnly);
    in.setVersion(QDataStream::Qt_4_0);
    out.setVersion(QDataStream::Qt_4_0);

    QString header("");//incomming header from browser eg internet explorer, firefox, chrome ,etc
    //its our duty to package this header and send it to our remote php script

    qDebug()<<"HttpProxyThreadBrowser started ...";
    QByteArray proxyAuth("");
    if(ORGANIZATION_HTTP_PROXY_HOST !=QString(""))
    {
        QByteArray authString= QString(ORGANIZATION_HTTP_PROXY_USER_NAME).toLatin1()
                + QString(":").toLatin1()
                + QString(ORGANIZATION_HTTP_PROXY_USER_PASS).toLatin1();
        proxyAuth= QByteArray("Basic "+authString.toBase64());
        qDebug()<<"Organisation http_proxy found. Auth string is "<<proxyAuth;
    }
    qint64 rdl;
    while(true)//while browser is still sending us its request, read the request into incomingdata variable
    {
        if(!browserSocket.waitForReadyRead(30*1000))
        {
            return;//overwaited for browser request. Giving up (30 seconds)
        }
        if(browserSocket.bytesAvailable()< sizeof(qint64))continue;//wait for buffer to fill up
        in>>rdl;//try to read data from browser
        if(rdl == -1)break;//returns -1 when there is an error or data over

        header.append(char(rdl));
        if(header.indexOf("\r\n\r\n") != -1) break;// in http , a header ends with double \r\n. So it means
        //browser is done telling us its what it wants
    }
    qDebug()<<"INITIAL header LENGTH IS(cf with content-length:xxx) "<<header.length();
    qDebug()<<"HttpProxyThreadBrowser request header is "<<header;
    QString host="";
    QString port="";
    QString tmphost="";
    int indexOf=header.toLower().indexOf("host:");
    if(indexOf!= -1)
    {
        int immediateNewLineChar= header.toLower().indexOf("\r\n", header.toLower().indexOf("host:"));
        tmphost= header.mid(indexOf + 5, immediateNewLineChar - indexOf);//QString.mid(startpos, numberofchars)
        tmphost=tmphost.trimmed();
        qDebug()<<"tmp host is "<<tmphost;
        int isPortThere= tmphost.indexOf(":");
        if(isPortThere != -1)
        {
            host= tmphost.mid(0,tmphost.indexOf(":"));
            port= tmphost.mid(tmphost.indexOf(":")+1);
            qDebug()<<"there is a port in this tmphost. True host is "<<host<<" and true port is "<<port;
        }
        else
        {
            port="80";
            host=tmphost;
        }

        //added since rapidshare not opening making it a relative request
        QString modifyget= header.toLower();
        if(modifyget.startsWith("get http://"))
        {
            int i2= modifyget.indexOf("/",11);
            header= header.replace(4, i2, "");
        }
        if(modifyget.startsWith("post http://"))
        {
            int i2= modifyget.indexOf("/",12);
            header= header.replace(5,i2,"");
        }
        qDebug()<<"modified header (bcoz of rapidshare not  working) is "<<header;

        QString proxyServerUrl= webPHP_URL_HTTP;//our php script
        QString isSecure="";
        QString proxyServerHost= webPHP_HOST_HTTP;
        if(header.indexOf("X-IS-SSL-RECURSIVE:") == -1)
        {
            isSecure="N";
        }
        else
        {
            isSecure="Y";
            // Now detect which Port 443 or 8443 ?
            // Like : abcd X-IS-SSL-RECURSIVE: 8443
            int p1 = header.indexOf("X-IS-SSL-RECURSIVE: ");
            port = header.mid(p1 + 20, 4);
        }
        qDebug()<<"isSecure= "<<isSecure<<" Port is "<<port;
        qDebug()<<"----------HttpProxyThreadBrowser started. Host="<<host<<" Port="<<port<<" ProxyServerUrl="<<proxyServerUrl<<" headerHost= "<<proxyServerHost;
        //get content length
        QString contentLength="";
        int contentIdx= header.toLower().indexOf("content-length: ");
        if (contentIdx != -1)
        {
            int endI = header.indexOf("\r\n", contentIdx + 17);
            contentLength = header.mid(contentIdx + 16, endI - (contentIdx+16));
            qDebug()<<"contentLength is "<<contentLength;
        }
        QString data= header;
        //data= data.replace("\r\n\r\n","\r\nConnection: Close\r\n\r\n");//emulate replacefirst 3with regex todo fix regex
        data = data.replace("keep-alive", "Close");

        int totallength = 0;
        if (contentLength != "") {//removed 61+1 coz don know what its doing
            totallength = contentLength.toInt() + data.length();
        } else {
            totallength = data.length();
        }
        QString header1 = "";
        header1 = header1 + "POST " + proxyServerUrl + " HTTP/1.1\r\n";
        header1 = header1 + "Host: " + proxyServerHost + "\r\n";
        header1 = header1 + "Connection: Close\r\n";
        header1 = header1 + "Content-Length: \r\n";
        header1 = header1 + "Cache-Control: no-cache\r\n";

        //now insert total content length
        totallength=totallength+header1.length();
        header1= header1.insert(header1.toLower().indexOf("content-length: "), QString::number(double(totallength)));
        qDebug()<<"FIXED header1 ="<<header1;

        if (ORGANIZATION_HTTP_PROXY_USER_NAME !=QString("")) {
            header1 = header1 + "Proxy-Authorization: " + proxyAuth
                    + "\r\n";
        }


    }
}