/// <summary>
/// Generate the signature base that is used to produce the signature
/// </summary>
/// <param name="oauth">The full url that needs to be signed </param>
/// <param name="extraParameters">The parameters</param>
private SignatureResult GenerateSignatureBase(OAuthInfomation oauth, QueryParameterList extraParameters)
{
if (oauth.Token == null)
{
oauth.Token = String.Empty;
}
if (oauth.TokenSecret == null)
{
oauth.TokenSecret = String.Empty;
}
var result = new SignatureResult();
var parameters = GetQueryParameters(oauth.RequestUri.Query);
parameters.AddRange(oauth.GetParametersForSignature());
parameters.AddRange(extraParameters.Where(p => p.NeedSign));
parameters.Sort(new QueryParameterComparer());
var signatureBase = new StringBuilder();
signatureBase.AppendFormat("{0}&", oauth.HttpMethod.ToUpper());
signatureBase.AppendFormat("{0}&", UrlEncode(oauth.RequestUri.Normalize()));
signatureBase.AppendFormat("{0}", UrlEncode(parameters.ToString()));
result.SignatureBase = signatureBase.ToString();
return(result);
}
/// <summary>
/// Generates a signature using the specified signatureType
/// </summary>
/// <param name="oauth">The information that needs to be signed</param>
/// <param name="extraParameters">The parameters</param>
public SignatureResult GenerateSignature(OAuthInfomation oauth, QueryParameterList extraParameters)
{
SignatureResult result = new SignatureResult();
switch (oauth.SignatureMethod)
{
case SignatureTypes.PLAINTEXT:
result.Signature = HttpUtility.UrlEncode(oauth.GetSignatureKey);
break;
case SignatureTypes.HMACSHA1:
result = GenerateSignatureBase(oauth, extraParameters);
result.Signature = ComputeHash(new HMACSHA1(Encoding.ASCII.GetBytes(oauth.GetSignatureKey)), result.SignatureBase);
break;
case SignatureTypes.RSASHA1:
throw new NotImplementedException();
default:
throw new ArgumentException("Unknown signature type", "signatureType");
}
return result;
}
/// <summary>
/// Generates a signature using the specified signatureType
/// </summary>
/// <param name="oauth">The information that needs to be signed</param>
/// <param name="extraParameters">The parameters</param>
public SignatureResult GenerateSignature(OAuthInfomation oauth, QueryParameterList extraParameters)
{
SignatureResult result = new SignatureResult();
switch (oauth.SignatureMethod)
{
case SignatureTypes.PLAINTEXT:
result.Signature = HttpUtility.UrlEncode(oauth.GetSignatureKey);
break;
case SignatureTypes.HMACSHA1:
result = GenerateSignatureBase(oauth, extraParameters);
result.Signature = ComputeHash(new HMACSHA1(Encoding.ASCII.GetBytes(oauth.GetSignatureKey)), result.SignatureBase);
break;
case SignatureTypes.RSASHA1:
throw new NotImplementedException();
default:
throw new ArgumentException("Unknown signature type", "signatureType");
}
return(result);
}
/// <summary>
/// Generate the signature base that is used to produce the signature
/// </summary>
/// <param name="oauth">The full url that needs to be signed </param>
/// <param name="extraParameters">The parameters</param>
private SignatureResult GenerateSignatureBase(OAuthInfomation oauth, QueryParameterList extraParameters)
{
if (oauth.Token == null)
{
oauth.Token = String.Empty;
}
if (oauth.TokenSecret == null)
{
oauth.TokenSecret = String.Empty;
}
var result = new SignatureResult();
var parameters = GetQueryParameters(oauth.RequestUri.Query);
parameters.AddRange(oauth.GetParametersForSignature());
parameters.AddRange(extraParameters.Where(p => p.NeedSign));
parameters.Sort(new QueryParameterComparer());
var signatureBase = new StringBuilder();
signatureBase.AppendFormat("{0}&", oauth.HttpMethod.ToUpper());
signatureBase.AppendFormat("{0}&", UrlEncode(oauth.RequestUri.Normalize()));
signatureBase.AppendFormat("{0}", UrlEncode(parameters.ToString()));
result.SignatureBase = signatureBase.ToString();
return result;
}
