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