public ValidatedRequest Validate(AuthorizeRequest request)
{
var validatedRequest = new ValidatedRequest();
// validate request model binding
if (request == null)
{
throw new AuthorizeRequestResourceOwnerException("Invalid request parameters.");
}
// make sure redirect uri is present
if (string.IsNullOrWhiteSpace(request.redirect_uri))
{
throw new AuthorizeRequestResourceOwnerException("Missing redirect URI");
}
// validate client
if (string.IsNullOrWhiteSpace(request.client_id))
{
throw new AuthorizeRequestResourceOwnerException("Missing client identifier");
}
var client = Clients.Get(request.client_id);
if (client == null)
{
throw new AuthorizeRequestResourceOwnerException("Invalid client: " + request.client_id);
}
validatedRequest.Client = client;
Tracing.InformationFormat("Client: {0} ({1})",
validatedRequest.Client.Name,
validatedRequest.Client.ClientId);
// make sure redirect_uri is a valid uri, and in case of http is over ssl
Uri redirectUri;
if (Uri.TryCreate(request.redirect_uri, UriKind.Absolute, out redirectUri))
{
if (redirectUri.Scheme == Uri.UriSchemeHttp)
{
throw new AuthorizeRequestClientException(
"Redirect URI not over SSL : " + request.redirect_uri,
new Uri(request.redirect_uri),
OAuth2Constants.Errors.InvalidRequest,
string.Empty,
validatedRequest.State);
}
// make sure redirect uri is registered with client
if (!validatedRequest.Client.RedirectUris.Contains(request.redirect_uri))
{
throw new AuthorizeRequestResourceOwnerException("Invalid redirect URI: " + request.redirect_uri);
}
validatedRequest.RedirectUri = request.redirect_uri;
Tracing.InformationFormat("Redirect URI: {0}",
validatedRequest.RedirectUri);
}
else
{
throw new AuthorizeRequestResourceOwnerException("Invalid redirect URI: " + request.redirect_uri);
}
// check state
if (!string.IsNullOrWhiteSpace(request.state))
{
validatedRequest.State = request.state;
Tracing.Information("State: " + validatedRequest.State);
}
else
{
Tracing.Information("No state supplied.");
}
// validate response type
if (string.IsNullOrWhiteSpace(request.response_type))
{
throw new AuthorizeRequestClientException(
"response_type is null or empty",
new Uri(validatedRequest.RedirectUri),
OAuth2Constants.Errors.InvalidRequest,
string.Empty,
validatedRequest.State);
}
// check response type (only code and token are supported)
if (!request.response_type.Equals(OAuth2Constants.ResponseTypes.Token, StringComparison.Ordinal) &&
!request.response_type.Equals(OAuth2Constants.ResponseTypes.Code, StringComparison.Ordinal))
{
throw new AuthorizeRequestClientException(
"response_type is not token or code: " + request.response_type,
new Uri(validatedRequest.RedirectUri),
OAuth2Constants.Errors.UnsupportedResponseType,
string.Empty,
validatedRequest.State);
}
validatedRequest.ResponseType = request.response_type;
Tracing.Information("Response type: " + validatedRequest.ResponseType);
// scope is required
if (string.IsNullOrWhiteSpace(request.scope))
{
throw new AuthorizeRequestClientException(
"Missing scope",
new Uri(validatedRequest.RedirectUri),
OAuth2Constants.Errors.InvalidScope,
validatedRequest.ResponseType,
validatedRequest.State);
}
// validate scopes
if (!request.scope.StartsWith("openid"))
{
throw new AuthorizeRequestClientException(
"Invalid scope: " + request.scope,
new Uri(validatedRequest.RedirectUri),
OAuth2Constants.Errors.InvalidScope,
validatedRequest.ResponseType,
validatedRequest.State);
}
validatedRequest.Scopes = request.scope;
if (request.response_type == OAuth2Constants.ResponseTypes.Code)
{
ValidateCodeResponseType(validatedRequest, request);
}
else if (request.response_type == OAuth2Constants.ResponseTypes.Token)
{
ValidateTokenResponseType(validatedRequest, request);
}
else
{
throw new AuthorizeRequestClientException(
"Invalid response_type: " + request.response_type,
new Uri(validatedRequest.RedirectUri),
OAuth2Constants.Errors.UnsupportedResponseType,
request.response_type,
validatedRequest.State);
}
return validatedRequest;
}
private void ValidateTokenResponseType(ValidatedRequest validatedRequest, AuthorizeRequest request)
{
throw new NotImplementedException();
}
private void ValidateCodeResponseType(ValidatedRequest validatedRequest, AuthorizeRequest request)
{
if (validatedRequest.Client.Flow != OpenIdConnectFlows.AuthorizationCode)
{
throw new AuthorizeRequestClientException(
"response_type is not allowed: " + request.response_type,
new Uri(validatedRequest.RedirectUri),
OAuth2Constants.Errors.UnsupportedResponseType,
request.response_type,
validatedRequest.State);
}
}
public OidcViewModel(ValidatedRequest validatedRequest)
{
if (validatedRequest == null) throw new ArgumentNullException("validatedRequest");
ValidatedRequest = validatedRequest;
ValidateScopes(GetRawScopes());
}
private HttpResponseMessage ProcessAuthorizationCodeRequest(ValidatedRequest validatedRequest)
{
Tracing.Information("Processing authorization code request");
var tokenService = new OidcTokenService(
ServerConfiguration.Global.IssuerUri,
ServerConfiguration.Keys.SigningCertificate);
var response = tokenService.CreateTokenResponse(validatedRequest.Grant,
validatedRequest.Client.AccessTokenLifetime);
Grants.Delete(validatedRequest.Grant.GrantId);
if (validatedRequest.Grant.Scopes.Contains(OidcConstants.Scopes.OfflineAccess) &&
validatedRequest.Client.AllowRefreshToken)
{
var refreshToken = StoredGrant.CreateRefreshToken(
validatedRequest.Grant.ClientId,
validatedRequest.Grant.Subject,
validatedRequest.Grant.Scopes,
validatedRequest.Client.RefreshTokenLifetime);
Grants.Add(refreshToken);
response.RefreshToken = refreshToken.GrantId;
}
return Request.CreateTokenResponse(response);
}
private HttpResponseMessage ProcessRefreshTokenRequest(ValidatedRequest validatedRequest)
{
Tracing.Information("Processing refresh token request");
var tokenService = new OidcTokenService(
ServerConfiguration.Global.IssuerUri,
ServerConfiguration.Keys.SigningCertificate);
var response = tokenService.CreateTokenResponse(validatedRequest.Grant,
validatedRequest.Client.AccessTokenLifetime);
response.RefreshToken = validatedRequest.Grant.GrantId;
return Request.CreateTokenResponse(response);
}