Visual+C++网络通信协议分析

				
				#if !defined(__Inet_h__)
				#define __Inet_h__
				
				
				class MAP_FILES : public CObject
				{
				public:
					CString strFileName;
					int nMaxLevel;
				};
				
				typedef CMapStringToOb MAP_FILES_ARRAY;
				
				#define MAX_INET_BUFFER	700000L
				
				class CInet
				{
				private:
					HINTERNET m_hSession;
					int m_nUniqueCount;
					DWORD m_dwRet;
				
				private:
					void DoConnect(LPCTSTR lpszURL, BOOL bFileDownload);
				
				public:
					CInet();
					~CInet();
				
					typedef enum
					{
						SUCCESS,
						BAD_URL,
						BAD_FILENAME,
						LOCATION_MOVED,
						UNKNOWN_ERROR,
						ALREADY_EXISTS,
						TIMEOUT,
					} RESULTS;
				
					typedef enum
					{
						DRIVE = 0x0001,
						PATH = 0x0002,
						FNAME = 0x0004,
						EXT = 0x0008,
					} SPLIT;
				
				public:
					CString GetErrorText();
				
					void ResetUniqueCount();
					RESULTS DoGet(CString& strURL, BYTE **pbyBuffer, int& nLen, 
													BOOL bIsTextPage);
					RESULTS GetPage(CString& strURL, BYTE **pbyBuffer, int& nLen,
													BOOL bRedirectOkay);
					RESULTS GetFile(CString& strURL, BYTE **pbyBuffer, int& nLen);
					RESULTS SaveFile(CString& strFileName, LPCTSTR lpszDirectory, 
													BYTE *pbyBuffer, int nLen);
					RESULTS OpenSession(BOOL bUseProxy, CString& strProxyName);
				
					void CloseSession();
				
					void GenerateUniqueFileName(CString& strName, CString& strFileName, 
											MAP_FILES_ARRAY &arrNameMap,
											BOOL bIsText);
				
					static CString SplitFileName(LPCTSTR lpszPath, int nSplit);
				
				};
				
				#endif