private async Task <bool> SendCryptographyResponseAsync(OpenIdConnectResponse response) { var request = Context.GetOpenIdConnectRequest(); if (request == null) { request = new OpenIdConnectRequest(); } Context.SetOpenIdConnectResponse(response); var notification = new ApplyCryptographyResponseContext(Context, Options, request, response); await Options.Provider.ApplyCryptographyResponse(notification); if (notification.HandledResponse) { return(true); } else if (notification.Skipped) { return(false); } return(await SendPayloadAsync(response)); }
private async Task <bool> SendCryptographyResponseAsync(OpenIdConnectResponse response) { var request = Context.GetOpenIdConnectRequest(); Context.SetOpenIdConnectResponse(response); response.SetProperty(OpenIdConnectConstants.Properties.MessageType, OpenIdConnectConstants.MessageTypes.CryptographyResponse); var notification = new ApplyCryptographyResponseContext(Context, Options, request, response); await Options.Provider.ApplyCryptographyResponse(notification); if (notification.HandledResponse) { Logger.LogDebug("The discovery request was handled in user code."); return(true); } else if (notification.Skipped) { Logger.LogDebug("The default discovery request handling was skipped from user code."); return(false); } Logger.LogInformation("The discovery response was successfully returned: {Response}", response); return(await SendPayloadAsync(response)); }
private async Task <bool> InvokeCryptographyEndpointAsync() { // Metadata requests must be made via GET. // See http://openid.net/specs/openid-connect-discovery-1_0.html#ProviderConfigurationRequest if (!string.Equals(Request.Method, "GET", StringComparison.OrdinalIgnoreCase)) { Logger.LogError("The discovery request was rejected because an invalid " + "HTTP method was used: {Method}.", Request.Method); return(await SendErrorPayloadAsync(new OpenIdConnectMessage { Error = OpenIdConnectConstants.Errors.InvalidRequest, ErrorDescription = "Invalid HTTP method: make sure to use GET." })); } var validatingContext = new ValidateCryptographyRequestContext(Context, Options); await Options.Provider.ValidateCryptographyRequest(validatingContext); if (!validatingContext.IsValidated) { Logger.LogInformation("The discovery request was rejected by application code."); return(await SendErrorPayloadAsync(new OpenIdConnectMessage { Error = validatingContext.Error ?? OpenIdConnectConstants.Errors.InvalidRequest, ErrorDescription = validatingContext.ErrorDescription, ErrorUri = validatingContext.ErrorUri })); } var notification = new HandleCryptographyRequestContext(Context, Options); foreach (var credentials in Options.SigningCredentials) { // Ignore the key if it's not supported. if (!credentials.Key.IsSupportedAlgorithm(SecurityAlgorithms.RsaSha256Signature) && !credentials.Key.IsSupportedAlgorithm(SecurityAlgorithms.RsaSha384Signature) && !credentials.Key.IsSupportedAlgorithm(SecurityAlgorithms.RsaSha512Signature)) { Logger.LogInformation("An unsupported signing key was ignored and excluded " + "from the key set: {Type}. Only asymmetric security keys " + "supporting RS256, RS384 or RS512 can be exposed " + "via the JWKS endpoint.", credentials.Key.GetType().Name); continue; } // Determine whether the security key is a RSA key embedded in a X.509 certificate. var x509SecurityKey = credentials.Key as X509SecurityKey; if (x509SecurityKey != null) { // Create a new JSON Web Key exposing the // certificate instead of its public RSA key. notification.Keys.Add(new JsonWebKey { Use = JsonWebKeyUseNames.Sig, Kty = JsonWebAlgorithmsKeyTypes.RSA, // Resolve the JWA identifier from the algorithm specified in the credentials. Alg = OpenIdConnectServerHelpers.GetJwtAlgorithm(credentials.Algorithm), // Use the key identifier specified // in the signing credentials. Kid = credentials.Kid, // x5t must be base64url-encoded. // See http://tools.ietf.org/html/draft-ietf-jose-json-web-key-31#section-4.8 X5t = Base64UrlEncoder.Encode(x509SecurityKey.Certificate.GetCertHash()), // Unlike E or N, the certificates contained in x5c // must be base64-encoded and not base64url-encoded. // See http://tools.ietf.org/html/draft-ietf-jose-json-web-key-31#section-4.7 X5c = { Convert.ToBase64String(x509SecurityKey.Certificate.RawData) } }); } var rsaSecurityKey = credentials.Key as RsaSecurityKey; if (rsaSecurityKey != null) { // Export the RSA public key. notification.Keys.Add(new JsonWebKey { Use = JsonWebKeyUseNames.Sig, Kty = JsonWebAlgorithmsKeyTypes.RSA, // Resolve the JWA identifier from the algorithm specified in the credentials. Alg = OpenIdConnectServerHelpers.GetJwtAlgorithm(credentials.Algorithm), // Use the key identifier specified // in the signing credentials. Kid = credentials.Kid, // Both E and N must be base64url-encoded. // See http://tools.ietf.org/html/draft-ietf-jose-json-web-key-31#appendix-A.1 E = Base64UrlEncoder.Encode(rsaSecurityKey.Parameters.Exponent), N = Base64UrlEncoder.Encode(rsaSecurityKey.Parameters.Modulus) }); } } await Options.Provider.HandleCryptographyRequest(notification); if (notification.HandledResponse) { return(true); } else if (notification.Skipped) { return(false); } var payload = new JObject(); var keys = new JArray(); foreach (var key in notification.Keys) { var item = new JObject(); // Ensure a key type has been provided. // See http://tools.ietf.org/html/draft-ietf-jose-json-web-key-31#section-4.1 if (string.IsNullOrEmpty(key.Kty)) { Logger.LogError("A JSON Web Key was excluded from the key set because " + "it didn't contain the mandatory 'kid' parameter."); continue; } // Create a dictionary associating the // JsonWebKey components with their values. var parameters = new Dictionary <string, string> { [JsonWebKeyParameterNames.Kid] = key.Kid, [JsonWebKeyParameterNames.Use] = key.Use, [JsonWebKeyParameterNames.Kty] = key.Kty, [JsonWebKeyParameterNames.Alg] = key.Alg, [JsonWebKeyParameterNames.X5t] = key.X5t, [JsonWebKeyParameterNames.X5u] = key.X5u, [JsonWebKeyParameterNames.E] = key.E, [JsonWebKeyParameterNames.N] = key.N }; foreach (var parameter in parameters) { if (!string.IsNullOrEmpty(parameter.Value)) { item.Add(parameter.Key, parameter.Value); } } if (key.KeyOps.Any()) { item.Add(JsonWebKeyParameterNames.KeyOps, JArray.FromObject(key.KeyOps)); } if (key.X5c.Any()) { item.Add(JsonWebKeyParameterNames.X5c, JArray.FromObject(key.X5c)); } keys.Add(item); } payload.Add(JsonWebKeyParameterNames.Keys, keys); var context = new ApplyCryptographyResponseContext(Context, Options, payload); await Options.Provider.ApplyCryptographyResponse(context); if (context.HandledResponse) { return(true); } else if (context.Skipped) { return(false); } using (var buffer = new MemoryStream()) using (var writer = new JsonTextWriter(new StreamWriter(buffer))) { payload.WriteTo(writer); writer.Flush(); Response.ContentLength = buffer.Length; Response.ContentType = "application/json;charset=UTF-8"; buffer.Seek(offset: 0, loc: SeekOrigin.Begin); await buffer.CopyToAsync(Response.Body, 4096, Context.RequestAborted); return(true); } }
/// <summary> /// Called before the authorization server starts emitting the OpenID Connect JSON Web Key set associated with this instance. /// If the web application wishes to produce the JSON Web Key set directly in this call, it may write to the /// context.Response directly and should call context.RequestCompleted to stop the default behavior from executing. /// </summary> /// <param name="context">The context of the event carries information in and results out.</param> /// <returns>Task to enable asynchronous execution</returns> public virtual Task ApplyCryptographyResponse(ApplyCryptographyResponseContext context) => OnApplyCryptographyResponse(context);