SOAP request using WinHttp over HTTPS returns error code 415

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Hi,

I need to create a SOAP client that connects to a web service over HTTPS. I am using winhttp class to send the HTTP request with the SOAP body, but the reply I get from the server is HTTP 415 --> Unsupported media type. Does anyone know what I am doing wrong?

I have researched a bit on HTTP 415. Many developers say that the Content-Type is incorrect. I have tried to change this, with no luck.

Below is the code I use.

I have tried to connect to this webservice via curl, and it gives me an invalid certificate, but I can bypass this in curl - then the webservice works correctly.

I have tried to bypass the invalid certificate in winhttp, but not sure if I did this correctly.

Thanks in advance,
Regards,

Hemant
________________________________________________________

C++

HINTERNET hinet, hconnection, hsession;

	LPCWSTR types[2];
	types[0] = L"text/*";
	types[1] = 0;

	hinet = WinHttpOpen(L"application",
			WINHTTP_ACCESS_TYPE_NO_PROXY,
			WINHTTP_NO_PROXY_NAME,
			WINHTTP_NO_PROXY_BYPASS, 
			0);


        hsession = WinHttpConnect(hinet,
                  L"test.myservice.com",
                  INTERNET_DEFAULT_HTTPS_PORT,
                  0);


hconnection = WinHttpOpenRequest(hsession,
                        L"POST",
                        L"/findme.asmx",
                        NULL,
                        L"https://test.myservice.com/findme.asmx",
                        types,
                        WINHTTP_FLAG_SECURE);

a = WinHttpSendRequest(hconnection,
		0,
		0,
		Content,
		((CString)Content).GetLength(),
		((CString)Content).GetLength(),
		0);
//Used to bypass cert.
DWORD	dwFlags = 
		SECURITY_FLAG_IGNORE_CERT_CN_INVALID
		| SECURITY_FLAG_IGNORE_CERT_DATE_INVALID
		| SECURITY_FLAG_IGNORE_UNKNOWN_CA
		| SECURITY_FLAG_IGNORE_CERT_WRONG_USAGE;

a = WinHttpSetOption(
     hconnection ,
     WINHTTP_OPTION_SECURITY_FLAGS,
     &dwFlags,
     sizeof(DWORD));


	a = WinHttpReceiveResponse(hconnection,0);

	DWORD dwStatus = 0;				
	DWORD dwStatusSize = sizeof(DWORD);									DWORD dwIndex = 0;	

	a = WinHttpQueryHeaders(hconnection,
				WINHTTP_QUERY_FLAG_NUMBER |  WINHTTP_QUERY_STATUS_CODE,
				NULL,
				&dwStatus,
				&dwStatusSize,
				&dwIndex);

Posted 11-Jun-10 8:28am

User 5474275

Updated 13-Jun-10 8:13am

v3

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Deepen_3k 10-Dec-10 2:57am

can you please post your solution

2 solutions

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User 5474275 · Answer 1 · 2010-12-16T03:28:00

I apologize to everyone for not getting back sooner.
Anyway, as you know error 415 is a media type error. Quite vague error description. They should rather rename it to Content-Type error, this is because error 415 related to the content type in the HTTP Header.
If any one who has this error, sniffs the HTTP Request, they will see the content type is not been set.

Initially, I thought the content type will be set by the following request (below), where the parameter 'types' is.

VB

hconnection = WinHttpOpenRequest(hsession,
   L"POST",
   L"/findme.asmx",
   NULL,
   L"https://test.myservice.com/findme.asmx",
   types,
   WINHTTP_FLAG_SECURE);

However this is not so.
The Content-Type must be set using the WinHttpAddRequestHeaders function.
EG:

VB

temp = "Content-Type: text/xml; charset=utf-8";
    
Result = 
WinHttpAddRequestHeaders(hInternet,             //Request Handle
CT2W(temp.GetBuffer()),                         //Header
temp.GetLength(),                               //Header Length
WINHTTP_ADDREQ_FLAG_ADD | WINHTTP_ADDREQ_FLAG_REPLACE); 
//Flags --> Add or Replace

This should sort out error 415.

User 5474275 · Answer 2 · 2010-06-14T21:27:00

Solution 1

I found the solution :).

I will post the solution as soon as I have time.

Posted 14-Jun-10 21:27pm

User 5474275

Comments

Deepen_3k 9-Dec-10 8:53am

What is the solution ?