/// <summary>
/// Step 1 of the oAuth protocol process
/// Make a request with the provider for a <see cref="RequestToken"/>
/// </summary>
/// <param name="requestTokenEndpoint">The url (as per the provider) to use for making a requet for a token</param>
/// <param name="realm">Typically the url of Your "application" or website</param>
/// <param name="consumerKey">The Consumer Key given to you by the provider</param>
/// <param name="consumerSecret">The Consumer Secret given to you by the provider</param>
/// <param name="callback">The url you'd like the provider to call you back on</param>
/// <param name="signatureMethod">defaults to HMAC-SHA1 - the only signature method currently supported</param>
/// <returns>An instance of a <see cref="RequestToken" /> class</returns>
public RequestToken GetOAuthRequestToken(string requestTokenEndpoint, string realm, string consumerKey, string consumerSecret, string callback, SignatureMethod signatureMethod = SignatureMethod.HMACSHA1)
{
var oAuthUtils = new OAuthUtils();
var authorizationHeader = oAuthUtils.GetRequestTokenAuthorizationHeader(requestTokenEndpoint, realm, consumerKey, consumerSecret, callback, signatureMethod);
return(MakeRequest <RequestToken>(requestTokenEndpoint, authorizationHeader));
}
public string GetUserInfo(string userInfoEndpoint, string realm, string consumerKey, string consumerSecret, string token, string tokenSecret, SignatureMethod signatureMethod = SignatureMethod.HMACSHA1)
{
var oAuthUtils = new OAuthUtils();
var authorizationHeader = oAuthUtils.GetUserInfoAuthorizationHeader(userInfoEndpoint, realm, consumerKey, consumerSecret, token, tokenSecret, signatureMethod, "GET");
var request = WebRequest.Create(userInfoEndpoint);
request.Headers.Add("Authorization", authorizationHeader.ToString());
request.Method = "GET";
try
{
var response = request.GetResponse();
using (var responseStream = response.GetResponseStream())
{
var reader = new StreamReader(responseStream);
var responseText = reader.ReadToEnd();
reader.Close();
return(responseText);
}
}
catch (WebException e)
{
using (var resp = e.Response)
{
using (StreamReader sr = new StreamReader(resp.GetResponseStream()))
{
var errorMessage = sr.ReadToEnd();
throw new OAuthProtocolException(errorMessage, e);
}
}
}
}
/// <summary>
/// Step 3 of the oAuth protocol process
/// Make a request on the provider to Exchange a <see cref="RequesToken"/> for an <see cref="AccessToken"/>
/// (Step 2 is a simple redirect and so there is no method for it in this class)
/// </summary>
/// <param name="accessTokenEndpoint">The url (as per the provider) to use for making a requet to Exchange a request token for an access token</param>
/// <param name="realm">Typically the url of Your "application" or website</param>
/// <param name="consumerKey">The Consumer Key given to you by the provider</param>
/// <param name="consumerSecret">The Consumer Secret given to you by the provider</param>
/// <param name="token">The token you got at the end of Step 1 or Step 2</param>
/// <param name="verifier">The verifier you got at the end of step 2</param>
/// <param name="tokenSecret">The tokenSecret you got at the end of step 1</param>
/// <param name="signatureMethod">defaults to HMAC-SHA1 - the only signature method currently supported</param>
/// <returns>An instance of a <see cref="AccessToken"/> class</returns>
public AccessToken GetOAuthAccessToken(string accessTokenEndpoint, string realm, string consumerKey, string consumerSecret, string token, string verifier, string tokenSecret, SignatureMethod signatureMethod = SignatureMethod.HMACSHA1)
{
var oAuthUtils = new OAuthUtils();
var authorizationHeader = oAuthUtils.GetAccessTokenAuthorizationHeader(accessTokenEndpoint, realm, consumerKey, consumerSecret, token, verifier, tokenSecret, signatureMethod);
return(MakeRequest <AccessToken>(accessTokenEndpoint, authorizationHeader));
}
private string NormalizeUrl(string url)
{
int questionIndex = url.IndexOf('?');
if (questionIndex == -1)
{
return(url);
}
var parameters = url.Substring(questionIndex + 1);
var result = new StringBuilder();
result.Append(url.Substring(0, questionIndex + 1));
bool hasQueryParameters = false;
if (!String.IsNullOrEmpty(parameters))
{
string[] parts = parameters.Split('&');
hasQueryParameters = parts.Length > 0;
foreach (var part in parts)
{
var nameValue = part.Split('=');
result.Append(nameValue[0] + "=");
if (nameValue.Length == 2)
{
result.Append(OAuthUtils.UrlEncode(nameValue[1]));
}
result.Append("&");
}
if (hasQueryParameters)
{
result = result.Remove(result.Length - 1, 1);
}
}
return(result.ToString());
}
public override string ToString()
{
var sb = new StringBuilder();
sb.Append("OAuth ");
sb.AppendFormat("realm=\"{0}\", ", Realm);
sb.AppendFormat("{0}=\"{1}\", ", OAuthProtocolParameter.ConsumerKey.GetStringValue(), OAuthUtils.UrlEncode(ConsumerKey));
sb.AppendFormat("{0}=\"{1}\", ", OAuthProtocolParameter.SignatureMethod.GetStringValue(), SignatureMethod);
sb.AppendFormat("{0}=\"{1}\", ", OAuthProtocolParameter.Signature.GetStringValue(), OAuthUtils.UrlEncode(Signature));
sb.AppendFormat("{0}=\"{1}\", ", OAuthProtocolParameter.Timestamp.GetStringValue(), Timestamp);
sb.AppendFormat("{0}=\"{1}\", ", OAuthProtocolParameter.Nounce.GetStringValue(), OAuthUtils.UrlEncode(Nounce));
sb.AppendFormat("{0}=\"{1}\", ", OAuthProtocolParameter.Version.GetStringValue(), Version);
if (!String.IsNullOrEmpty(Callback))
{
sb.AppendFormat("{0}=\"{1}\", ", OAuthProtocolParameter.Callback.GetStringValue(), OAuthUtils.UrlEncode(Callback));
}
if (!String.IsNullOrEmpty(Token))
{
sb.AppendFormat("{0}=\"{1}\", ", OAuthProtocolParameter.Token.GetStringValue(), OAuthUtils.UrlEncode(Token));
}
if (!String.IsNullOrEmpty(Verifier))
{
sb.AppendFormat("{0}=\"{1}\", ", OAuthProtocolParameter.Verifier.GetStringValue(), OAuthUtils.UrlEncode(Verifier));
}
sb = sb.Remove(sb.Length - 2, 2);
return(sb.ToString());
}
