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/* <!-- copyright */
/*
* aria2 - a simple utility for downloading files faster
*
* Copyright (C) 2006 Tatsuhiro Tsujikawa
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* copyright --> */
#ifndef _D_HTTP_CONNECTION_H_
#define _D_HTTP_CONNECTION_H_
#include "Segment.h"
#include "Socket.h"
#include "Request.h"
#include "Option.h"
#include "Logger.h"
#include "HttpHeader.h"
#include "common.h"
#include "Logger.h"
#include <string>
using namespace std;
#define HEADERBUF_SIZE 4096
class HttpConnection {
private:
string getHost(const string& host, int port) const;
string createRequest(const Segment& segment) const;
int findEndOfHeader(const char* buf, const char* substr, int bufLength) const;
bool useProxy() const;
bool useProxyAuth() const;
bool useProxyGet() const;
string getProxyAuthString() const;
int cuid;
SocketHandle socket;
const Request* req;
const Option* option;
const Logger* logger;
char headerBuf[HEADERBUF_SIZE+1];
int headerBufLength;
public:
HttpConnection(int cuid, const SocketHandle& socket, const Request* req,
const Option* op);
/**
* Sends Http request.
* If segment.sp+segment.ds > 0 then Range header is added.
* This method is used in HTTP/HTTP downloading and FTP downloading via
* HTTP proxy(GET method).
* @param segment indicates starting postion of the file for downloading
*/
void sendRequest(const Segment& segment) const;
/**
* Sends Http proxy request using CONNECT method.
*/
void sendProxyRequest() const;
/**
* Receives HTTP response from the server and store the response header
* into the variable headers.
* If response header is not fully received, received header is buffured
* in this object and headers is undefined and this method returns 0.
* You should continue to call this method until whole response header is
* received and this method returns non-zero value.
*
* @param headers holder to store HTTP response header
* @return HTTP status or 0 if whole response header is not received
*/
int receiveResponse(HttpHeader& headers);
};
#endif // _D_HTTP_CONNECTION_H_
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