IIS6.0中接收客户端发送的POST数据问题

哈利路亚1874 2010-10-24 05:09:05

我在客户端通过Socket连接到IIS6.0的80端口，然后采用循环不停的POST数据到IIS服务器，在IIS开发了一个扩展Dll，其中接收数据部分：



DWORD CIISExtendExtension::HttpExtensionProc(EXTENSION_CONTROL_BLOCK *pecb)

{

	DebgPrint("Begin HttpExtensionProc!\n");

	DWORD dwLen = 0;

	BOOL retn = FALSE;

	DWORD dwPostSize = 0;

	DWORD dwThreadId = 0;

	Thread_Param *param;

	char *postDataBuffer = NULL;

	HSE_EXEC_URL_INFO ExecUrlInfo = {0};

         HSE_EXEC_URL_ENTITY_INFO *pEntity = NULL;

	

	//获取URL

	pecb->GetServerVariable(pecb->ConnID,"URL",0,&dwLen);

	

	Url = new char[dwLen+1];

	if (Url == NULL)

	{

		DebgPrint("Alloc Url buffer error!\n");

		return HSE_STATUS_ERROR;

	}

	pecb->GetServerVariable(pecb->ConnID,"URL",Url,&dwLen);

	DebgPrint(Url);

	

	//首次Client连接过来，记录Client的IP和PORT

	//通过特定URL数据进行比对确认Client

	if (!stricmp(Url,"/index.html") && !stricmp(pecb->lpszMethod,"POST"))

	{

		while (TRUE)

		{

			//获取传送的POST数据

			if (pecb->cbTotalBytes > 0)

			{

				postDataBuffer = (char *)LocalAlloc(LPTR,pecb->cbTotalBytes);

				if(postDataBuffer == NULL)

				{

					DebgPrint("LocalAlloc error!\n");

					return HSE_STATUS_ERROR;

				}

				memcpy(postDataBuffer,pecb->lpbData,pecb->cbAvailable);

				if (pecb->cbTotalBytes-pecb->cbAvailable > 0)

				{

					//读取剩余的数据

					pecb->ReadClient(pecb->ConnID,(LPVOID)(postDataBuffer+pecb->cbAvailable),&dwPostSize);

					DebgPrint(postDataBuffer);

				}

			}

			Sleep(100);

			DebgPrint(postDataBuffer);

			ZeroMemory(postDataBuffer,pecb->cbTotalBytes);

		}

		

		LocalFree(postDataBuffer);

		delete Url;

		return HSE_STATUS_SUCCESS_AND_KEEP_CONN;

	}



	//如果不是客户端的数据,就正常返回请求的网页

	else

	{

		ExecUrlInfo.dwExecUrlFlags = HSE_EXEC_URL_IGNORE_CURRENT_INTERCEPTOR;

		retn = pecb->ServerSupportFunction(pecb->ConnID, HSE_REQ_IO_COMPLETION,HseIoCompletionProc, NULL, (LPDWORD)pEntity);

		if (!retn)

		{

			DebgPrint("HSE_REQ_IO_COMPLETION support error!\n");

			delete Url;

			return HSE_STATUS_ERROR;

		}

		retn = pecb->ServerSupportFunction(pecb->ConnID, HSE_REQ_EXEC_URL, &ExecUrlInfo, NULL, NULL);

		if (!retn)

		{

			DebgPrint("HSE_REQ_EXEC_URL support error!\n");

			delete Url;

			return HSE_STATUS_ERROR;

		}



		delete Url;

		return HSE_STATUS_PENDING;

	}



	//处理结束 并保持连接

	return HSE_STATUS_SUCCESS_AND_KEEP_CONN; 	

}