Problem in OAuthRequest->from_request (PHP lib)

[GoogleCodeExporter]

1, When request method is POST
2, All oauth parameters are set in header
3, customized parameters are set in post body
4, content-type is set to something else. (NOT - 
application/x-www-form-urlencoded)

since the condition is:
if ($http_method == "POST"
          &&  isset($request_headers['Content-Type'])
          && strstr($request_headers['Content-Type'],
                     'application/x-www-form-urlencoded')
          )

The requirement does not meet, then customized parameters will not be used when 
calculate the signature.  So, the result is : invalid signature.

For now, I have to remove customized parameters in base string when calculate 
signature.

I think it's a bug, and need be fixed.

Original issue reported on code.google.com by [email protected] on 12 Mar 2014 at 9:20