private void createSignature()
{
var method = ContainedRequest.Method;
var baseUrl = String.Format("{0}://{1}{2}", ContainedRequest.RequestUri.Scheme, ContainedRequest.RequestUri.Host, ContainedRequest.RequestUri.AbsolutePath);
var parameters = new SortedDictionary <string, string>(AuthorizationHeader);
var queryParams = UrlHelper.ParseQueryString(ContainedRequest.RequestUri.Query);
foreach (var pair in queryParams)
{
parameters.Add(pair.Key, pair.Value);
}
if (method.Equals("POST") && !String.IsNullOrEmpty(ContainedRequest.ContentType) && ContainedRequest.ContentType.Equals(FormUrlEncodedMimeType))
{
if (!String.IsNullOrEmpty(PostParameters))
{
var postParams = UrlHelper.ParseQueryString(PostParameters);
foreach (var pair in postParams)
{
parameters.Add(pair.Key, pair.Value);
}
}
}
var paramString = new StringBuilder();
foreach (var pair in parameters)
{
if (paramString.Length > 0)
{
paramString.Append("&");
}
paramString.AppendFormat("{0}={1}", UrlHelper.Encode(pair.Key), UrlHelper.Encode(pair.Value));
}
// percent encode everything
var encodedParams = String.Format("{0}&{1}&{2}", ContainedRequest.Method.ToUpper(),
UrlHelper.Encode(baseUrl), UrlHelper.Encode(paramString.ToString()));
// key
var key = String.Format("{0}&{1}", UrlHelper.Encode(RequestTokens.ConsumerSecret),
UrlHelper.Encode(RequestTokens.AccessTokenSecret));
// signature time!
string signature = SignatureMethod.CreateSignature(this.SigningMethod, encodedParams.ToString(), key);
AuthorizationHeader.Add("oauth_signature", signature);
}
