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//
// HtNNTP.h
//
// HtNNTP: Class for NNTP messaging (derived from Transport)
//
// Gabriele Bartolini - Prato - Italia
// started: 01.08.2000
//
//
// Part of the ht://Dig package <http://www.htdig.org/>
// Copyright (c) 1995-2004 The ht://Dig Group
// For copyright details, see the file COPYING in your distribution
// or the General GNU Library General Public License (LGPL) version 2 or later
// <http://www.gnu.org/copyleft/lgpl.html>
//
// $Id: HtNNTP.h,v 1.5 2004/05/28 13:15:23 lha Exp $
//
#ifndef _HTNNTP_H
#define _HTNNTP_H
#ifdef HAVE_CONFIG_H
#include "htconfig.h"
#endif
#include "Transport.h"
#include "URL.h"
#include "htString.h"
// for HtNNTP::ShowStatistics
#ifdef HAVE_STD
#include <iostream>
#ifdef HAVE_NAMESPACES
using namespace std;
#endif
#else
#include <iostream.h>
#endif /* HAVE_STD */
// In advance declarations
class HtNNTP;
class HtNNTP_Response : public Transport_Response
{
friend class HtNNTP; // declaring friendship
public:
///////
// Construction / Destruction
///////
HtNNTP_Response();
~HtNNTP_Response();
///////
// Interface
///////
// Reset
void Reset();
protected:
// Other header information
};
class HtNNTP : public Transport
{
public:
///////
// Construction/Destruction
///////
HtNNTP();
~HtNNTP();
///////
// Sends an NNTP request message
///////
// manages a Transport request (method inherited from Transport class)
virtual DocStatus Request ();
///////
// Control of member the variables
///////
///////
// Interface for resource retrieving
///////
// Set and get the document to be retrieved
void SetRequestURL(URL &u) { _url = u;}
URL GetRequestURL () { return _url;}
Transport_Response *GetResponse()
{
if (_response._status_code != -1)
return &_response;
else return NULL;
}
// Get the document status
virtual DocStatus GetDocumentStatus()
{ return GetDocumentStatus (_response); }
// It's a static method
static DocStatus GetDocumentStatus(HtNNTP_Response &);
// Manage statistics
static int GetTotSeconds () { return _tot_seconds; }
static int GetTotRequests () { return _tot_requests; }
static int GetTotBytes () { return _tot_bytes; }
static double GetAverageRequestTime ()
{ return _tot_seconds?( ((double) _tot_seconds) / _tot_requests) : 0; }
static float GetAverageSpeed ()
{ return _tot_bytes?( ((double) _tot_bytes) / _tot_seconds) : 0; }
static void ResetStatistics ()
{ _tot_seconds=0; _tot_requests=0; _tot_bytes=0;}
// Show stats
static ostream &ShowStatistics (ostream &out);
// Proxy settings
void SetProxy(int aUse) { _useproxy=aUse; }
protected:
///////
// Member attributes
///////
///////
// NNTP single Request information (Member attributes)
///////
int _bytes_read; // Bytes read
URL _url; // URL to retrieve
int _useproxy; // Shall we use a proxy?
///////
// NNTP Response information
///////
HtNNTP_Response _response; // Object where response
// information will be stored into
///////
// Set the string of the command containing the request
///////
void SetRequestCommand(String &);
///////
// Parse the header returned by the server
///////
int ParseHeader();
///////
// Read the body returned by the server
///////
int ReadBody();
///////
// Static attributes and methods
///////
static int _tot_seconds; // Requests last (in seconds)
static int _tot_requests; // Number of requests
static int _tot_bytes; // Number of bytes read
};
#endif
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