Leaked source code of windows server 2003
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/*++
Copyright (c) 1997 Microsoft Corporation
Module Name:
Simple.cpp
Abstract:
This module shows the basic functions needed for ISAPI extension
--*/
#include <windows.h>
#include <httpext.h>
BOOL WINAPI DllMain( IN HINSTANCE hinstDll, IN DWORD dwReason, IN LPVOID lpvContext )/*++
Function : DllMain
Description:
The initialization function for this DLL.
Arguments:
hinstDll - Instance handle of the DLL dwReason - Reason why NT called this DLL lpvContext - Reserved parameter for future use
Return Value:
Returns TRUE if successfull; otherwise FALSE.
--*/{ // Note that appropriate initialization and termination code
// would be written within the switch statement below. Because
// this example is very simple, none is currently needed.
switch( dwReason ) { case DLL_PROCESS_ATTACH: break;
case DLL_PROCESS_DETACH: break; }
return(TRUE);}
BOOL WINAPI GetExtensionVersion( OUT HSE_VERSION_INFO * pVer )/*++
Purpose:
The first function called after IIS successfully loads the DLL. The function should use the version structure provided by IIS to set the ISAPI architectural version number of this extension.
A simple text-string is also set so that administrators can identify the DLL.
Note that HSE_VERSION_MINOR and HSE_VERSION_MAJOR are constants defined in httpext.h.
Arguments:
pVer - points to extension version structure
Return Value:
TRUE if successful; FALSE otherwise.
--*/{ pVer->dwExtensionVersion = MAKELONG( HSE_VERSION_MINOR, HSE_VERSION_MAJOR );
strcpy( pVer->lpszExtensionDesc, "IIS SDK Simple ISAPI Extension" );
return TRUE;}
DWORD WINAPI HttpExtensionProc( IN EXTENSION_CONTROL_BLOCK * pECB)/*++
Purpose:
Function called by the IIS Server when a request for the ISAPI dll arrives. The HttpExtensionProc function processes the request and outputs the appropriate response to the web client using WriteClient().
Argument:
pECB - pointer to extention control block.
Return Value:
HSE_STATUS_SUCCESS
--*/{ static char szMessage[] = "<HTML>" "<HEAD><TITLE> Simple ISAPI Extension DLL </TITLE>" "</HEAD>\r\n" "<BODY>" "<P>Hello from Simple ISAPI Extension DLL!</P>\r\n" "</BODY></HTML>\r\n\r\n";
HSE_SEND_HEADER_EX_INFO HeaderExInfo;
//
// prepare headers
//
HeaderExInfo.pszStatus = "200 OK"; HeaderExInfo.pszHeader = "Content-type: text/html\r\n\r\n"; HeaderExInfo.cchStatus = strlen( HeaderExInfo.pszStatus ); HeaderExInfo.cchHeader = strlen( HeaderExInfo.pszHeader ); HeaderExInfo.fKeepConn = FALSE;
//
// send headers using IIS-provided callback
// (note - if we needed to keep connection open,
// we would set fKeepConn to TRUE *and* we would
// need to provide correct Content-Length: header)
pECB->ServerSupportFunction( pECB->ConnID, HSE_REQ_SEND_RESPONSE_HEADER_EX, &HeaderExInfo, NULL, NULL );
//
// Calculate length of string to output to client
//
DWORD dwBytesToWrite = strlen( szMessage );
//
// send text using IIS-provied callback
//
pECB->WriteClient( pECB->ConnID, szMessage, &dwBytesToWrite, 0 );
//
// Indicate that the call to HttpExtensionProc was successful
//
return HSE_STATUS_SUCCESS;}
BOOL WINAPITerminateExtension( IN DWORD dwFlags )/*++
Routine Description:
This function is called when the WWW service is shutdown
Arguments:
dwFlags - HSE_TERM_ADVISORY_UNLOAD or HSE_TERM_MUST_UNLOAD
Return Value:
TRUE if extension is ready to be unloaded, FALSE otherwise
--*/{ // Note: We must not agree to be unloaded if we have
// any pending requests.
return TRUE;}
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