private string GenerateSignature(HttpWebRequest request, FormParameters formParameters)
{
FormParameters parameters = FormParameters.OAuthDecode(request.RequestUri.Query);
foreach (var item in _protocolParameters)
{
parameters.Add(item);
}
if (request.ContentType == "application/x-www-form-urlencoded")
{
foreach (var item in formParameters)
{
parameters.Add(item);
}
}
parameters.Sort();
string signature = GenerateBaseSignature(request.Method, request.RequestUri, parameters);
string secret = EncodeSecret();
Trace.WriteLine("Secret: " + secret);
Trace.WriteLine("Signature: " + signature);
return(Sign(secret, signature));
}
private void SetTempToken()
{
FormParameters form = new FormParameters();
if (TempTokenRequesting != null)
{
TempTokenRequesting(this, new OAuthRequestTokenEventArgs(form));
}
//_protocolParameters.Set("oauth_callback", CallbackUrl);
form.Add("oauth_callback", CallbackUrl);
// TODO: check TempTokenMethod
HttpWebResponse response = AuthorizedPOST(TemporaryCredentialsUri, form);
using (var sr = new StreamReader(response.GetResponseStream()))
{
string text = sr.ReadToEnd();
FormParameters reply = FormParameters.OAuthDecode(text);
AuthorizedToken = reply["oauth_token"];
AuthorizedTokenSecret = reply["oauth_token_secret"];
// TODO pass additional parameters to impl
}
}
public static FormParameters FormDecode(string message)
{
FormParameters form = new FormParameters();
if (String.IsNullOrWhiteSpace(message))
{
return(form);
}
foreach (var pair in message.Split('&'))
{
string[] parts = pair.Split('=');
string key = HttpUtility.UrlDecode(parts[0], Encoding.UTF8);
string value = parts.Length > 1
? HttpUtility.UrlDecode(parts[1], Encoding.UTF8)
: String.Empty;
form.Add(key, value);
}
return(form);
}
public static FormParameters OAuthDecode(string message)
{
FormParameters form = new FormParameters();
message = message.TrimStart('?');
if (String.IsNullOrWhiteSpace(message))
{
return(form);
}
foreach (var pair in message.Split('&'))
{
string[] parts = pair.Split('=');
string key = OAuthClientBase.Decode(parts[0]);
string value = parts.Length > 1
? OAuthClientBase.Decode(parts[1])
: String.Empty;
form.Add(key, value);
}
return(form);
}
