WinInet : Error 12031

[FireJocker]

Hi,

My code was running correctly for a long, and now, only on my pc, I got an error code while getting a ssl web page,

here is the error :

ERROR_INTERNET_CONNECTION_RESET
12031
The connection with the server has been reset

here a piece of my code :

hInternetSession = InternetOpen (USER_AGENT, INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, NULL) ;
 
if (hInternetSession)
{
	hHttpSession  = InternetOpenUrl( hInternetSession, "HTTPS://SSL.MON_URL.COM", NULL, 0, INTERNET_FLAG_NO_CACHE_WRITE | INTERNET_FLAG_NO_UI | INTERNET_FLAG_PRAGMA_NOCACHE | INTERNET_FLAG_RELOAD| INTERNET_FLAG_SECURE | INTERNET_FLAG_IGNORE_CERT_CN_INVALID | INTERNET_FLAG_IGNORE_CERT_DATE_INVALID, 0 ) ;
 
	if (hHttpSession){
		InternetCloseHandle( hHttpSession );
	}
	else{	
		_cprintf("Err : %d\n", GetLastError());
	}
	
	InternetCloseHandle (hInternetSession) ;
}

I read many page found on google for this error, but I didn't found how to fix this problem,

could you help me please ?

jb

[edit] : Replacing "INTERNET_OPEN_TYPE_PRECONFIG" by "INTERNET_OPEN_TYPE_DIRECT" or "INTERNET_OPEN_TYPE_PROXY" doesn't fix anything

[kkez]

Try to call InternetGetLastResponseInfo, it may output something helpful.

EDIT: ERROR_INTERNET_CONNECTION_RESET should mean that the connection was lost. Were you downloading something in the meantime? Do you get this error every time? If you connect with the browser do you have any problem?

[FireJocker]

Now, it re-run correctly :S

So, i can't get any error to analyse it ?

While it didn't ran, internet was ok, i successfully surf on web

so what's wrong ?

[akgalp]

any proxys running .??

[FireJocker]

no

[FireJocker]

The problem seem being due to AtiveSync,

anyone knows something about it ?

[alex_gusev]

are you running it on PC or mobile device? because ActiveSync is in a game only if you are on PDA

besides, InternetOpenUrl just fails sometimes for unknown reason, InternetOpen is more reliable

[FireJocker]

I work on a PDA using WinCE 5.0

but, even disconnected from PC, the embedded application continue to get error 12031 on InternetOpenURL

[FireJocker]

Writing InternetOpen is more reliable , you seems telling InternetOpen might be used instead of InternetOpenUrl.

But I also use it,

here is my code (for eMbedded Visual C++)

	CStatic * txt = (CStatic *) GetDlgItem(IDC_STATIC1),
			* txtErrCode = (CStatic *) GetDlgItem(IDC_STATIC_ERRCODE);
	

	CString sErr;

	DWORD flags;
	HINTERNET hInternetSession, hHttpSession;
	flags = INTERNET_CONNECTION_OFFLINE;
	BOOL connected = InternetGetConnectedState(&flags, 0);

	if (connected)
	{
		connected = FALSE;
		hInternetSession = InternetOpen (USER_AGENT, INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, NULL) ;
		if (hInternetSession)
		{
			hHttpSession  = InternetOpenUrl( hInternetSession, _T("http://www.google.com"), NULL, 0, INTERNET_FLAG_NO_CACHE_WRITE | INTERNET_FLAG_NO_UI | INTERNET_FLAG_PRAGMA_NOCACHE | INTERNET_FLAG_RELOAD| INTERNET_FLAG_SECURE | INTERNET_FLAG_IGNORE_CERT_CN_INVALID | INTERNET_FLAG_IGNORE_CERT_DATE_INVALID, 0 ) ;

			connected = hHttpSession !=  NULL;
			if (connected) 
				InternetCloseHandle( hHttpSession );
			else
				txt->SetWindowText(_T("Step 3 HS"));

			
			InternetCloseHandle (hInternetSession) ;
		}
		else
			txt->SetWindowText(_T("Step 2 HS"));
		
	}
	else
		txt->SetWindowText(_T("Step 1 HS"));


	sErr.Format(_T("%d"), GetLastError());

	txtErrCode->SetWindowText(sErr);

Is it good ? or how modify it ?

[alex_gusev]

sorry, I've meant InternetConnect

something like the following (blame me, that is just my old test code for WinCE )

void CWceHttpDlg::OnButton2() 
{
	UpdateData();

	CString sInfo;
	DWORD dwConnStateFlags = 0;
	BOOL bRes = InternetGetConnectedState(&dwConnStateFlags,0);
	if ( bRes ) 
	{
		sInfo.Format(L"ConnState = %X",dwConnStateFlags);
		AfxMessageBox(sInfo);
	}

	HINTERNET		hGETRequest;
	DWORD			dwFlags = INTERNET_FLAG_NO_CACHE_WRITE | INTERNET_FLAG_KEEP_CONNECTION | 
							  INTERNET_FLAG_IGNORE_CERT_CN_INVALID|INTERNET_FLAG_IGNORE_CERT_DATE_INVALID|
							  INTERNET_FLAG_PRAGMA_NOCACHE; 
	LPTSTR			pszAcceptTypes [] = {TEXT("text/*"), NULL}; 
	TCHAR			szServer [1024];
	TCHAR			szEndpoint [1024];
	URL_COMPONENTS	crackedURL;
	int				nPort;
	HINTERNET		hConnect;
	HINTERNET		hOpen;
	CString			sHTTPHeader;

	if (m_sURL.IsEmpty ())
		return;

	//Crack URL ...
	ZeroMemory (& crackedURL, sizeof (URL_COMPONENTS));
	crackedURL.dwStructSize		= sizeof (URL_COMPONENTS);
	crackedURL.lpszHostName		= szServer;
	crackedURL.dwHostNameLength = 1024;
	crackedURL.lpszUrlPath		= szEndpoint;
	crackedURL.dwUrlPathLength	= 1024;

	InternetCrackUrl (m_sURL, 0, 0, &crackedURL);
	
	nPort = crackedURL.nPort;

	hOpen = InternetOpen (L"WceHttp", INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0);
	if ( !hOpen )
	{
		AfxMessageBox(L"Failed to open WinInet");
		return;
	}

	hConnect = InternetConnect (hOpen, szServer, nPort, L"", L"", INTERNET_SERVICE_HTTP, 0, 0);
	if ( !hConnect )
	{
		sInfo.Format(L"InternetConnect failed: %lu", GetLastError ());
		AfxMessageBox(sInfo);
		return;
	}

	// Open an HTTP request handle... 
	hGETRequest = HttpOpenRequest (hConnect, L"GET", szEndpoint, NULL, NULL, (LPCTSTR*) pszAcceptTypes, dwFlags, 0);
	if ( !hGETRequest )
	{
		sInfo.Format(L"HttpOpenRequest failed: %lu", GetLastError ());
		AfxMessageBox(sInfo);
		InternetCloseHandle (hConnect);
		return;
	}

	// send the request...
	sHTTPHeader = L"Content-Type: text/*\r\n";
	if (! HttpSendRequest (hGETRequest, (LPCTSTR) sHTTPHeader, sHTTPHeader.GetLength (), NULL, 0))
	{
		sInfo.Format(L"HttpSendRequest failed: %lu", GetLastError ());
		AfxMessageBox(sInfo);
		InternetCloseHandle (hGETRequest);
		InternetCloseHandle (hConnect);
		return;
	}

	DWORD dwNumberOfBytesAvailable = 0;
	if ( InternetQueryDataAvailable(hGETRequest,&dwNumberOfBytesAvailable,0,0) )
	{
		sInfo.Format(L"File size is : %lu",dwNumberOfBytesAvailable);
		AfxMessageBox(sInfo);
	}

	char szBuffer[4096];
	DWORD dwNumberOfBytesRead = 0;
	TCHAR wszTmp[4097];
	int i = 0;
	DWORD dwTotal = 0;
	while ( InternetReadFile(hGETRequest, szBuffer, 4096,&dwNumberOfBytesRead) && dwNumberOfBytesRead )
	{
		memset(wszTmp,0,sizeof(wszTmp));
		MultiByteToWideChar(CP_ACP,0,szBuffer,dwNumberOfBytesRead,wszTmp,sizeof(wszTmp));
		i++;
		dwTotal += dwNumberOfBytesRead;
	}
	
	sInfo.Format(L"Read %d block(s) - %lu byte(s)",i,dwTotal);
	AfxMessageBox(sInfo);

	InternetCloseHandle (hGETRequest);
	InternetCloseHandle (hConnect);
	InternetCloseHandle (hOpen);
}

[FireJocker]

Thanks for your help,

I'll follow your code.

[FireJocker]

Argh !

I won't see I need to write the protocole by myself.

It's an SSL connexion, it's not so easy like "GET /"

[alex_gusev]

well, it is almost the same, you get it from InternetCrackUrl() and specify appropriate in InternetConnect()

[FireJocker]

I never write SSL request, do you know where i can found any information about this ?

"SSL request" on google is loosing me !

thanks.

[alex_gusev]

why should you deal with it? WinInet does it already, so just specify correct flags (for HTTPS)
I've successfully communicated with such code to Web Service over https/SSL connections