Simple ISAPI Extension DLL

/*++ Copyright (c) 1997 Microsoft Corporation Module Name: Simple.cpp Abstract: This module shows the basic functions needed for ISAPI extension --*/ #include #include 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[] = "" " Simple ISAPI Extension DLL " "\r\n" "" "

Hello from Simple ISAPI Extension DLL!

\r\n" "\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 WINAPI TerminateExtension( 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; }