Re: Windows HTTPS Issue

[Riccardo Mottola]

Hi,

danieljboyd@icloud.com wrote:
> I'm having a strange issue with an Restful Api client class I'm trying
> to write. Currently, I'm trying to get it to work with Microsoft's
> oauth2 endpoints.
>
> I'm trying to make a HTTP post request using [NSURLConnection
> sendSynchronousRequest: returningResponse: error:]. I'm just doing a
> basic application/x-www-form-urlencoded request with a query string in
> the body of the request.
>
> When I send the request to Microsoft's end point, it times out. If I
> send the same request to postman echo (an endpoint that just echoes
> back your request), it works fine. Both endpoints use https.
>
> Moreover, when I compile and run the code in Linux, *everything* works
> fine, including contacting Microsoft's servers.
>
> My actual code would be difficult to follow here, but this is
> essentially what I'm doing:
>
> NSMutableURLRequest * req = [[NSMutableURLRequest alloc] initWithURL:
>     [NSURL
>     //times out with this
>     URLWithString:@"https://login.microsoftonline.com/XXX/oauth2/";]];
>     //works fine with this
>     //URLWithString:@"https://postman-echo.com/post";]];
>
> //where XXX is my Office 365 tenant GUID
>
> [req addValue:@"application/x-www-form-urlencoded"
>     forHTTPHeaderField:@"Content-Type"];
>
> //all of this is property escaped with 
> //stringByAddingPercentEncodingWithAllowedCharacters:
> NSData * query = [@"value1=key1&value2=key2, etc" dataUsingEncoding:
>     NSUTF8StringEncoding];
>
> [req addValue:[NSString stringWithFormat:@"%d", [query length]
>      forHTTPHeaderField: @"Content-Length"];
> [req setHTTPBody:query];
>
> NSURLResponse * httpResponse;
> NSError * error;
> NSData * response = [NSURLConnection sendSynchronousRequest: req
>                                      returningResponse: &httpResponse
>                                                  error: &error];
>                                 
>
> So, yeah... works fine in Linux. Works in Windows with a different URL.
> Times out with this URL in Windows. Is this an SSL issue? How would I
> even go about troubleshooting it?
>


hard to say... what is your environment? how is it built?

I have a client which connects to SOAP HTTPS.

I have an "old" win environment which I patch and keep together by
miracle based on gcc 3.4 and it connects to HTTPS fine (up to TLS 1.2, I
updated the SSL library with great pain).

Instead a current build environment on windows built on latest
MSYS2/MINGW64 - it looks it never connects

Riccardo