private Task <bool> SendErrorRedirectAsync(
OAuthValidateClientRedirectUriContext clientContext,
BaseValidatingContext <OAuthAuthorizationServerOptions> validatingContext)
{
if (clientContext == null)
{
throw new ArgumentNullException("clientContext");
}
string error = validatingContext.HasError ? validatingContext.Error : Constants.Errors.InvalidRequest;
string errorDescription = validatingContext.HasError ? validatingContext.ErrorDescription : null;
string errorUri = validatingContext.HasError ? validatingContext.ErrorUri : null;
if (!clientContext.IsValidated)
{
// write error in response body if client_id or redirect_uri have not been validated
return(SendErrorPageAsync(error, errorDescription, errorUri));
}
// redirect with error if client_id and redirect_uri have been validated
string location = WebUtilities.AddQueryString(clientContext.RedirectUri, Constants.Parameters.Error, error);
if (!string.IsNullOrEmpty(errorDescription))
{
location = WebUtilities.AddQueryString(location, Constants.Parameters.ErrorDescription, errorDescription);
}
if (!string.IsNullOrEmpty(errorDescription))
{
location = WebUtilities.AddQueryString(location, Constants.Parameters.ErrorUri, errorUri);
}
Response.Redirect(location);
// request is handled, does not pass on to application
return(Task.FromResult(true));
}
private static AuthenticationTicket ReturnOutcome(
OAuthValidateTokenRequestContext validatingContext,
BaseValidatingContext <OAuthAuthorizationServerOptions> grantContext,
AuthenticationTicket ticket,
string defaultError)
{
if (!validatingContext.IsValidated)
{
return(null);
}
if (!grantContext.IsValidated)
{
if (grantContext.HasError)
{
validatingContext.SetError(
grantContext.Error,
grantContext.ErrorDescription,
grantContext.ErrorUri);
}
else
{
validatingContext.SetError(defaultError);
}
return(null);
}
if (ticket == null)
{
validatingContext.SetError(defaultError);
return(null);
}
return(ticket);
}
private Task SendErrorAsJsonAsync(
BaseValidatingContext <OAuthAuthorizationServerOptions> validatingContext)
{
string error = validatingContext.HasError ? validatingContext.Error : Constants.Errors.InvalidRequest;
string errorDescription = validatingContext.HasError ? validatingContext.ErrorDescription : null;
string errorUri = validatingContext.HasError ? validatingContext.ErrorUri : null;
var memory = new MemoryStream();
byte[] body;
using (var writer = new JsonTextWriter(new StreamWriter(memory)))
{
writer.WriteStartObject();
writer.WritePropertyName(Constants.Parameters.Error);
writer.WriteValue(error);
if (!string.IsNullOrEmpty(errorDescription))
{
writer.WritePropertyName(Constants.Parameters.ErrorDescription);
writer.WriteValue(errorDescription);
}
if (!string.IsNullOrEmpty(errorUri))
{
writer.WritePropertyName(Constants.Parameters.ErrorUri);
writer.WriteValue(errorUri);
}
writer.WriteEndObject();
writer.Flush();
body = memory.ToArray();
}
Response.StatusCode = 400;
Response.ContentType = "application/json;charset=UTF-8";
Response.Headers.Set("Cache-Control", "no-cache");
Response.Headers.Set("Pragma", "no-cache");
Response.Headers.Set("Expires", "-1");
Response.Headers.Set("Content-Length", body.Length.ToString(CultureInfo.InvariantCulture));
return(Response.WriteAsync(body, Request.CallCancelled));
}