HttpRequest.h

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//
// HttpRequest.h
//
// Copyright (c) Shareaza Development Team, 2002-2005.
// This file is part of SHAREAZA (www.shareaza.com)
//
// Shareaza 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.
//
// Shareaza 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 Shareaza; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//

#pragma once

class CBuffer;


class CHttpRequest
{
// Constructions
public:
        CHttpRequest();
        virtual ~CHttpRequest();

// Operations
public:
        void            Clear();
public:
        CString         GetURL();
        BOOL            SetURL(LPCTSTR pszURL);
        void            SetUserAgent(LPCTSTR pszUserAgent);
        void            AddHeader(LPCTSTR pszKey, LPCTSTR pszValue);
        void            SetPostData(LPCVOID pBody, DWORD nBody);
        void            LimitContentLength(DWORD nLimit);
        void            SetNotify(HWND hWnd, UINT nMsg, WPARAM wParam = 0);
public:
        int                     GetStatusCode();
        BOOL            GetStatusSuccess();
        CString         GetStatusString();
        CString         GetHeader(LPCTSTR pszName);
        CString         GetResponseString(UINT nCodePage = CP_UTF8);
        CBuffer*        GetResponseBuffer();
        BOOL            InflateResponse();
public:
        BOOL            Execute(BOOL bBackground);
        BOOL            IsPending();
        BOOL            IsFinished();
        void            Cancel();

// Data
protected:
        CCriticalSection        m_pSection;
        HANDLE                          m_hThread;
        HINTERNET                       m_hInternet;
        BOOL                            m_bCancel;
protected:
        CString                         m_sURL;
        CString                         m_sUserAgent;
        CString                         m_sRequestHeaders;
        DWORD                           m_nLimit;
        int                                     m_nStatusCode;
        CString                         m_sStatusString;
        CBuffer*                        m_pPost;
        CBuffer*                        m_pResponse;
        CMapStringToString m_pResponseHeaders;
protected:
        HWND                            m_hNotifyWnd;
        UINT                            m_nNotifyMsg;
        WPARAM                          m_nNotifyParam;

// Implementation
protected:
        static UINT ThreadStart(LPVOID lpParameter);
protected:
        int             Run();
        void    RunRequest();
        void    RunResponse(HINTERNET hURL);

// Utilities
public:
        static void CloseThread(HANDLE* phThread, LPCTSTR pszName);
};

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