ExtendedNC/ExtNC.cpp

//---------------------------------------------------------------------------
#include <time.h>
#include <vcl.h>
#pragma hdrstop

#include "ExtNC.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma link "SHDocVw_OCX"
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
 ComboBox3->ItemIndex=0;
 Panel1->Height = 44;

 ToSend->ColWidths[0]=150;
 ToSend->ColWidths[1]=450;

 ToSend->Cells[0][0] = "Host";
 ToSend->Cells[1][0] = "";

 ToSend->Cells[0][1] = "Referer";
 ToSend->Cells[1][1] = "";

 ToSend->Cells[0][2] = "Cookie";
 ToSend->Cells[1][2] = "";

 ToSend->Cells[0][3] = "Accept";
 ToSend->Cells[1][3] = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/vnd.ms-powerpoint, application/vnd.ms-excel, application/msword, */*";

 ToSend->Cells[0][4] = "Accept-Language";
 ToSend->Cells[1][4] = "es,es;q=0.5";

 ToSend->Cells[0][5] = "Accept-Charset";
 ToSend->Cells[1][5] = "iso-8859-1,*,utf-8";


 ToSend->Cells[0][6] = "Content-Type";
 ToSend->Cells[1][6] = "application/x-www-form-urlencoded";

 ToSend->Cells[0][7] = "Accept-Encoding";
 ToSend->Cells[1][7] = "gzip, deflate";

 ToSend->Cells[0][8] = "User-Agent";
 ToSend->Cells[1][8] = "Mozilla/4.0 (compatible; MSIE 6.0; Windows 98; .NET CLR 1.0.3705)";

 ToSend->Cells[0][9] = "Proxy-Connection";
 ToSend->Cells[1][9] = "Keep-Alive";

 ToSend->Cells[0][10] = "Pragma";
 ToSend->Cells[1][10] = "no-cache";

}
//---------------------------------------------------------------------------
void __fastcall TForm1::GenerarCabeceraClick(TObject *Sender)
{
  AnsiString Method[] = { "GET","HEAD","OPTIONS","TRACE","PUT","POST","DELETE" };

  // Obtenemos el Host de la URL
  AnsiString Host;
  Host = Url->Text;
  if ( Host.Pos("http://") > 0 )
          Host = Host.SubString( 8, Host.Length()-7 );
  if ( Host.Pos( "/" ) > 0 )
          Host = Host.SubString( 1, Host.Pos( "/" ) );


  // Componemos la cabecera que va a ser enviada...
  Memo3->Clear();
  Memo3->Lines->Add(Method[ComboBox3->ItemIndex]+" "+Url->Text+" "+ProtocolVersion->Text);

  // Si esta vacia, ponemos el HOST
  if ( ToSend->Cells[1][0].IsEmpty() )
                ToSend->Cells[1][0] = Host;

  // Componemos la cabecera que debemos enviar.
  for ( int i=0; i<ToSend->RowCount; i++ )
    if ( !ToSend->Cells[1][i].IsEmpty() )
      Memo3->Lines->Add( ToSend->Cells[0][i] + ": " + ToSend->Cells[1][i] );

  // Metodo POST
  if ( ComboBox3->ItemIndex==5 )
  {
     Memo3->Lines->Add( "Content-Length: " +AnsiString( Post->Text.Length() ) );
     Memo3->Lines->Add( "" );
     Memo3->Lines->Add( Post->Text );
  }

  Memo3->Lines->Add( "" );
  Memo3->Lines->Add( "" );
}
//---------------------------------------------------------------------------
void __fastcall TForm1::ComboBox3Change(TObject *Sender)
{
  if ( ComboBox3->ItemIndex==5 )
    Panel1->Height = 80;
  else
    Panel1->Height = 44;
}
//---------------------------------------------------------------------------

void __fastcall TForm1::BitBtn1Click(TObject *Sender)
{
 GenerarCabeceraClick(0);
 EnviarCabecera();
}
//---------------------------------------------------------------------------
void __fastcall TForm1::BitBtn3Click(TObject *Sender)
{
 EnviarCabecera();
}
//---------------------------------------------------------------------------
void __fastcall TForm1::EnviarCabecera(void)
{
  AnsiString buf;

  ClientSocket = new TClientSocket( this );
  ClientSocket->OnConnect    = SocketConnect;
//  ClientSocket->OnDisconnect = SocketDisconnect;
//  ClientSocket->OnError      = SocketError;
  ClientSocket->ClientType   = ctBlocking;
  ClientSocket->Host      = ToSend->Cells[1][0];
  ClientSocket->Port         = 80;
  ClientSocket->Active = true;
}
//---------------------------------------------------------------------------
void __fastcall TForm1::SocketConnect(TObject *Sender,
      TCustomWinSocket *Socket)
{
   time_t first, second;


  TDateTime start;
  TWinSocketStream *pStream;

  bool eond;
  int num_bytes_read;
  char buff[500];
  // create a TWinSocketStream for reading and writing
  pStream = new TWinSocketStream( Socket, 20000 );
  try
  {
    // fetch and process commands until the connection or thread is terminated
    if ( ClientSocket->Active )
    {
      try
      {
          // Enviamos todos los datos de cabecera
          for ( int i=0; i<Memo3->Lines->Count; i++ )
          {
                strncpy( buff, Memo3->Lines->Strings[i].c_str(), 499 );
                pStream->Write( buff, strlen(buff) );
                pStream->Write( "\n", 1 );
          }

          Memo2->Clear();

          if ( pStream->WaitForData(10000) )
          {
                  eond = false;
                  first = time(NULL);  /* Gets system
                           time */
                  while( !eond && ClientSocket->Active && difftime(time(NULL),first) < 20 )
                  {
                   try {
                   buff[0]='\0';
                   num_bytes_read = 0;
                   num_bytes_read = pStream->Read( buff, 499 );
                   eond = (num_bytes_read==0);
                   } catch(...) {
                    eond = true;
                   }

                   buff[num_bytes_read]='\0';
                   Memo2->Lines->Text = Memo2->Lines->Text+AnsiString(buff);
                  }
          }

      }
      catch (Exception &E)
      {
        if (!E.ClassNameIs("EAbort"))
        {
         // nothing
        }
      }
    }
  }
  __finally
  {
    delete pStream;
    Socket->Close();
  }
  int numCRLF=1;
  Memo1->Clear();
  for (int i=0; numCRLF > 0 && i<Memo2->Lines->Count; i++ )
  {
    if ( Memo2->Lines->Strings[0].IsEmpty() ) numCRLF--;
    Memo1->Lines->Add(Memo2->Lines->Strings[0]);
    Memo2->Lines->Delete(0);
  }

  Memo2->Lines->SaveToFile(ExtractFilePath(Application->ExeName)+"output.htm");
  wchar_t *wbuff;
  int ancho_buff = AnsiString(ExtractFilePath(Application->ExeName)+"output.htm").WideCharBufSize();
  wbuff = new wchar_t[ancho_buff];
  AnsiString(ExtractFilePath(Application->ExeName)+"output.htm").WideChar(wbuff,ancho_buff);
  CppWebBrowser1->Navigate(wbuff, NULL, NULL, NULL, NULL );
  delete buff;
}