private byte[] PostProcessPostParameters(WebRequest request, Uri uri)
{
var body = "";
switch (ParameterHandling)
{
case OAuthParameterHandling.HttpAuthorizationHeader:
SetAuthorizationHeader(request, "Authorization");
#if SILVERLIGHT
var postParameters = new WebParameterCollection(uri.Query.ParseQueryString());
#else
var postParameters = new WebParameterCollection(uri.Query.ParseQueryString());
#endif
// Only use the POST parameters that exist in the body
postParameters = new WebParameterCollection(postParameters.Where(p => !p.Name.StartsWith("oauth_")));
// Append any leftover values to the POST body
var nonAuthParameters = GetPostParametersValue(postParameters, true /* escapeParameters */);
if (body.IsNullOrBlank())
{
body = nonAuthParameters;
}
else
{
if (!nonAuthParameters.IsNullOrBlank())
{
body += "&".Then(nonAuthParameters);
}
}
break;
case OAuthParameterHandling.UrlOrPostParameters:
body = GetPostParametersValue(Parameters, false /* escapeParameters */);
break;
}
var content = Encoding.UTF8.GetBytes(body);
return content;
}
/// <summary>
/// Sorts a <see cref="WebParameterCollection"/> by name, and then value if equal.
/// </summary>
/// <param name="parameters">A collection of parameters to sort</param>
/// <returns>A sorted parameter collection</returns>
public static WebParameterCollection SortParametersExcludingSignature(WebParameterCollection parameters)
{
var copy = new WebParameterCollection(parameters);
var exclusions = copy.Where(n => n.Name.EqualsIgnoreCase("oauth_signature"));
copy.RemoveAll(exclusions);
copy.ForEach(p => p.Value = UrlEncodeStrict(p.Value));
copy.Sort((x, y) => x.Name.Equals(y.Name) ? x.Value.CompareTo(y.Value) : x.Name.CompareTo(y.Name));
return copy;
}
