Leaked source code of windows server 2003
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/*++
Copyright (c) 1996 Microsoft Corporation
Module Name :
linkload.h
Abstract:
Link loader class definitions. It uses wininet API
to load the web page from the internet.
Author:
Michael Cheuk (mcheuk) 22-Nov-1996
Project:
Link Checker
Revision History:
--*/
#ifndef _LINKLOAD_H_
#define _LINKLOAD_H_
#include "inetapi.h"
//------------------------------------------------------------------
// Forward declaration
//
class CLink;
//------------------------------------------------------------------
// This is a wrapper class for HINTERNET. It takes care of internet
// handle cleaning up.
//
class CAutoInternetHandle
{
// Public interfaces
public:
// Constructor
CAutoInternetHandle(
HINTERNET hHandle = NULL
)
{
m_hHandle = hHandle;
}
// Destructor
~CAutoInternetHandle()
{
if(m_hHandle)
{
ASSERT(CWininet::IsLoaded());
VERIFY(CWininet::InternetCloseHandle(m_hHandle));
}
}
// Operator overloads. These functions make
// CAutoInternetHandle instance behaves like a HINTERNET
operator HINTERNET() const
{
return m_hHandle;
}
const HINTERNET& operator=(
const HINTERNET& hHandle
)
{
m_hHandle = hHandle;
return m_hHandle;
}
// Protected member
protected:
HINTERNET m_hHandle; // Actual HINTERNET
}; // class CAutoInternetHandle
//------------------------------------------------------------------
// Link loader class. It uses wininet API to load the web
// page from the internet.
//
class CLinkLoader
{
// Public interfaces
public:
// One time link loader create funtion
BOOL Create(
const CString& strUserAgent, // HTTP user agent name
const CString& strAdditionalHeaders // addtional HTTP headers
);
// Load a web link
BOOL Load(
CLink& link,
BOOL fLocalLink
);
// Change the loader properties
BOOL ChangeProperties(
const CString& strUserAgent,
const CString& strAdditionalHeaders
);
// Protected interfaces
protected:
// Load a HTTP link
BOOL LoadHTTP(
CLink& link,
BOOL fReadFile,
LPCTSTR szHostName,
LPCTSTR szUrlPath,
int iRedirectCount = 0
);
// Load a URL (non-HTTP) link
BOOL LoadURL(
CLink& link
);
// Wininet failed clean up subroutine
BOOL WininetFailed(
CLink& link
);
// Protected interfaces
protected:
// Handle for internet session (one per instance)
CAutoInternetHandle m_hInternetSession;
// Additional http header string
CString m_strAdditionalHeaders;
}; // class CLinkLoader
#endif // _LINKLOAD_H_