public virtual string GetFormEncodedQueryFormat(OAuthMessage message)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
System.Text.StringBuilder strBuilder = new System.Text.StringBuilder();
bool skipDelimiter = true;
foreach (string key in message.Parameters.Keys)
{
if (message.Parameters[key] != null)
{
if (!skipDelimiter)
{
strBuilder.Append("&");
}
strBuilder.Append(string.Format(System.Globalization.CultureInfo.InvariantCulture, "{0}={1}", new object[]
{
HttpUtility.UrlEncode(key),
HttpUtility.UrlEncode(message.Parameters[key])
}));
skipDelimiter = false;
}
}
return(strBuilder.ToString());
}
/// <summary>
/// Generates a Uri to redirect the user's browser to, along with some OAuth paramters in the query string.
/// </summary>
/// <param name="message">The incoming request message.</param>
/// <param name="authorizationCode">The authorization code.</param>
/// <returns>The redirect Uri.</returns>
public static string GetCodeResponseUri(this OAuthMessage message, string authorizationCode)
{
string state;
if (message == null)
{
throw new ArgumentNullException("message");
}
string redirectUri = message.Parameters[OAuthConstants.RedirectUri];
if (redirectUri == null && message.Parameters[OAuthConstants.GrantType] != OAuthConstants.AccessGrantType.ClientCredentials)
{
throw new InvalidOperationException(OAuthConstants.RedirectUri + " cannot be null");
}
NameValueCollection responseParameters = new NameValueCollection();
responseParameters.Add(OAuthConstants.Code, authorizationCode);
state = message.Parameters[OAuthConstants.State];
if (state != null)
{
responseParameters.Add(OAuthConstants.State, state);
}
return(redirectUri + CreateQueryString(responseParameters));
}
public virtual void Write(OAuthMessage message, System.IO.Stream requestStream)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
if (requestStream == null)
{
throw new ArgumentNullException("requestStream");
}
System.IO.StreamWriter streamWriter = new System.IO.StreamWriter(requestStream);
AccessTokenRequest atRequestMsg = message as AccessTokenRequest;
if (atRequestMsg != null)
{
streamWriter.Write(this.GetFormEncodedQueryFormat(message));
streamWriter.Flush();
return;
}
AccessTokenResponse atResponseMsg = message as AccessTokenResponse;
if (atResponseMsg != null)
{
streamWriter.Write(this.GetJsonEncodedFormat(message));
streamWriter.Flush();
return;
}
throw new OAuthMessageException(string.Format(Resources.ID3724, message.GetType()));
}
public virtual string GetJsonEncodedFormat(OAuthMessage message)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
var serializedMessage = JsonConvert.SerializeObject(message.Parameters);
// TODO: replace token of array to object...
return(serializedMessage);
}
public virtual string GetQueryStringFormat(OAuthMessage message)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
System.Text.StringBuilder strBuilder = new System.Text.StringBuilder();
strBuilder.Append(message.BaseUri.AbsoluteUri);
strBuilder.Append("?");
strBuilder.Append(this.GetFormEncodedQueryFormat(message));
return(strBuilder.ToString());
}
public virtual void Write(OAuthMessage message, HttpWebRequest request)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
if (request == null)
{
throw new ArgumentNullException("request");
}
request.Method = this.GetHttpMethod(message);
request.ContentType = this.GetHttpContentType(message);
this.Write(message, request.GetRequestStream());
}
public virtual void Write(OAuthMessage message, HttpContextBase context)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
if (context == null)
{
throw new ArgumentNullException("context");
}
context.Response.ContentType = this.GetHttpContentType(message);
context.Response.Clear();
this.Write(message, context.Response.OutputStream);
context.Response.Flush();
}
protected virtual OAuthMessage CreateTypedOAuthMessageFromParameters(Uri baseUri, NameValueCollection parameters)
{
if (parameters == null)
{
throw new ArgumentNullException("parameters");
}
OAuthMessage request = null;
if (parameters["response_type"] == "code" || parameters["response_type"] == "token")
{
request = new EndUserAuthorizationRequest(baseUri);
}
if (!string.IsNullOrEmpty(parameters["code"]) || (!string.IsNullOrEmpty(parameters["access_token"]) && string.IsNullOrEmpty(parameters["refresh_token"])))
{
request = new EndUserAuthorizationResponse(baseUri);
}
if (!string.IsNullOrEmpty(parameters["error"]))
{
request = new EndUserAuthorizationFailedResponse(baseUri);
}
if (!string.IsNullOrEmpty(parameters["grant_type"]) && parameters["grant_type"] == "authorization_code")
{
request = new AccessTokenRequestWithAuthorizationCode(baseUri);
}
if (!string.IsNullOrEmpty(parameters["grant_type"]) && parameters["grant_type"] == OAuthConstants.AccessGrantType.ClientCredentials)
{
request = new AccessTokenRequest(baseUri);
}
if (!string.IsNullOrEmpty(parameters["access_token"]))
{
request = new AccessTokenResponse(baseUri);
}
if (request == null)
{
throw new OAuthMessageSerializationException(Resources.ID3723);
}
request.Parameters.Add(parameters);
request.Validate();
return(request);
}
public virtual string GetHttpContentType(OAuthMessage message)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
AccessTokenRequest atRequestMessage = message as AccessTokenRequest;
if (atRequestMessage != null)
{
return("application/x-www-form-urlencoded");
}
AccessTokenResponse atResponseMessage = message as AccessTokenResponse;
if (atResponseMessage != null)
{
return("application/json");
}
return("text/plain; charset=us-ascii");
}
/// <summary>
/// Generates a Uri with the error message in the query string.
/// </summary>
/// <param name="message">Then incoming request message.</param>
/// <param name="errorCode">The error code.</param>
/// <param name="errorDescription">A description of the error.</param>
/// <returns>
/// Returns the redirect Uri.
/// </returns>
public static string GetErrorResponseUri(this OAuthMessage message, string errorCode, string errorDescription)
{
string state;
if (message == null)
{
throw new ArgumentNullException("message");
}
if (errorCode == null)
{
throw new ArgumentNullException("errorCode");
}
if (errorDescription == null)
{
throw new ArgumentNullException("errorDescription");
}
string redirectUri = message.Parameters[OAuthConstants.RedirectUri];
if (redirectUri == null)
{
throw new InvalidOperationException(OAuthConstants.RedirectUri + " cannot be null");
}
NameValueCollection responseParameters = new NameValueCollection();
responseParameters.Add(OAuthConstants.Error, errorCode);
responseParameters.Add(OAuthConstants.ErrorDescription, errorDescription);
state = message.Parameters[OAuthConstants.State];
if (state != null)
{
responseParameters.Add(OAuthConstants.State, state);
}
return(redirectUri + CreateQueryString(responseParameters));
}
public virtual string GetHttpMethod(OAuthMessage message)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
AccessTokenRequest atRequestMessage = message as AccessTokenRequest;
if (atRequestMessage != null)
{
return("POST");
}
AccessTokenResponse atResponseMessage = message as AccessTokenResponse;
if (atResponseMessage != null)
{
return("POST");
}
return("GET");
}
