internal static MobileConnectStatus StartAuthentication(IAuthenticationService authentication, DiscoveryResponse discoveryResponse, string encryptedMSISDN,
string state, string nonce, MobileConnectConfig config, MobileConnectRequestOptions options)
{
if (!IsUsableDiscoveryResponse(discoveryResponse))
{
return(MobileConnectStatus.StartDiscovery());
}
StartAuthenticationResponse response;
try
{
string clientId = discoveryResponse.ResponseData.response.client_id ?? config.ClientId;
string authorizationUrl = discoveryResponse.OperatorUrls.AuthorizationUrl;
SupportedVersions supportedVersions = discoveryResponse.ProviderMetadata?.MobileConnectVersionSupported;
AuthenticationOptions authOptions = options?.AuthenticationOptions ?? new AuthenticationOptions();
authOptions.ClientName = discoveryResponse.ApplicationShortName;
response = authentication.StartAuthentication(clientId, authorizationUrl, config.RedirectUrl, state, nonce, encryptedMSISDN, supportedVersions, authOptions);
}
catch (MobileConnectInvalidArgumentException e)
{
Log.Error(() => $"An invalid argument was passed to StartAuthentication arg={e.Argument}");
return(MobileConnectStatus.Error(ErrorCodes.InvalidArgument, string.Format("An argument was found to be invalid during the process. The argument was {0}.", e.Argument), e));
}
catch (Exception e)
{
Log.Error(() => $"A general error occurred in AttemptDiscoveryAfterOperatorSelection state={state} nonce={nonce} authUrl={discoveryResponse.OperatorUrls.AuthorizationUrl}");
return(MobileConnectStatus.Error(ErrorCodes.Unknown, "An unknown error occured while generating an authorization url", e));
}
return(MobileConnectStatus.Authentication(response.Url, state, nonce));
}
internal static async Task <MobileConnectStatus> RevokeToken(IAuthenticationService authentication, string token, string tokenTypeHint, DiscoveryResponse discoveryResponse, MobileConnectConfig config)
{
Validate.RejectNull(discoveryResponse, "discoveryResponse");
Validate.RejectNullOrEmpty(token, "token");
string revokeTokenUrl = discoveryResponse.OperatorUrls.RevokeTokenUrl;
var notSupported = IsSupported(revokeTokenUrl, "Revoke", discoveryResponse.ProviderMetadata?.Issuer);
if (notSupported != null)
{
return(notSupported);
}
string clientId = discoveryResponse.ResponseData.response.client_id;
string clientSecret = discoveryResponse.ResponseData.response.client_secret;
try
{
var response = await authentication.RevokeTokenAsync(clientId, clientSecret, revokeTokenUrl, token, tokenTypeHint);
return(MobileConnectStatus.TokenRevoked(response));
}
catch (Exception e)
{
Log.Error(() => $"RevokeToken failed", e);
return(MobileConnectStatus.Error(ErrorCodes.Unknown, "Revoke token error", e));
}
}
internal static async Task <MobileConnectStatus> RequestIdentity(IIdentityService _identity, DiscoveryResponse discoveryResponse, string accessToken, MobileConnectConfig _config, MobileConnectRequestOptions options)
{
string identityUrl = discoveryResponse?.OperatorUrls?.PremiumInfoUrl;
var notSupported = IsSupported(identityUrl, "Identity", discoveryResponse?.ProviderMetadata?.Issuer);
if (notSupported != null)
{
return(notSupported);
}
try
{
var response = await _identity.RequestIdentity(identityUrl, accessToken);
return(MobileConnectStatus.Identity(response));
}
catch (MobileConnectInvalidArgumentException e)
{
Log.Error(() => $"An invalid argument was passed to RequestIdentity arg={e.Argument}");
return(MobileConnectStatus.Error(ErrorCodes.InvalidArgument, string.Format("An argument was found to be invalid during the process. The argument was {0}.", e.Argument), e));
}
catch (MobileConnectEndpointHttpException e)
{
Log.Error(() => $"A general http error occurred in RequestUserInfo identityUrl={identityUrl}");
return(MobileConnectStatus.Error(ErrorCodes.HttpFailure, "An HTTP failure occured while calling the operator token endpoint, the endpoint may be inaccessible", e));
}
catch (Exception e)
{
Log.Error(() => $"A general error occurred in RequestUserInfo identityUrl={identityUrl}");
return(MobileConnectStatus.Error(ErrorCodes.Unknown, "A failure occured while requesting a token", e));
}
}
internal static async Task <MobileConnectStatus> AttemptDiscovery(IDiscoveryService discovery, string msisdn, string mcc, string mnc, IEnumerable <BasicKeyValuePair> cookies, MobileConnectConfig config, MobileConnectRequestOptions options)
{
DiscoveryResponse response = null;
try
{
DiscoveryOptions discoveryOptions = options?.DiscoveryOptions ?? new DiscoveryOptions();
discoveryOptions.MSISDN = msisdn;
discoveryOptions.IdentifiedMCC = mcc;
discoveryOptions.IdentifiedMNC = mnc;
discoveryOptions.RedirectUrl = config.RedirectUrl;
discoveryOptions.XRedirect = config.XRedirect;
response = await discovery.StartAutomatedOperatorDiscoveryAsync(config, config.RedirectUrl, discoveryOptions, cookies);
}
catch (MobileConnectInvalidArgumentException e)
{
Log.Error(() => $"An invalid argument was passed to AttemptDiscovery arg={e.Argument}");
return(MobileConnectStatus.Error(ErrorCodes.InvalidArgument, string.Format("An argument was found to be invalid during the process. The argument was {0}.", e.Argument), e));
}
catch (MobileConnectEndpointHttpException e)
{
Log.Error(() => $"A general http error occurred in AttemptDiscovery msisdn={!string.IsNullOrEmpty(msisdn)} mcc={mcc} mnc={mnc} discoveryUrl={config.DiscoveryUrl}");
return(MobileConnectStatus.Error(ErrorCodes.HttpFailure, "An HTTP failure occured while calling the discovery endpoint, the endpoint may be inaccessible", e));
}
catch (Exception e)
{
Log.Error(() => $"A general error occurred in AttemptDiscovery msisdn={!string.IsNullOrEmpty(msisdn)} mcc={mcc} mnc={mnc} discoveryUrl={config.DiscoveryUrl}");
return(MobileConnectStatus.Error(ErrorCodes.Unknown, "An unknown error occured while calling the Discovery service to obtain operator details", e));
}
return(GenerateStatusFromDiscoveryResponse(discovery, response));
}
internal static async Task <MobileConnectStatus> RequestUserInfo(IIdentityService _identity, DiscoveryResponse discoveryResponse, string accessToken, MobileConnectConfig _config, MobileConnectRequestOptions options)
{
string userInfoUrl = discoveryResponse?.OperatorUrls?.UserInfoUrl;
if (string.IsNullOrEmpty(userInfoUrl))
{
Log.Error(() => $"UserInfo was not supported for issuer={discoveryResponse?.ProviderMetadata?.Issuer}");
return(MobileConnectStatus.Error(ErrorCodes.NotSupported, "UserInfo not supported with current operator", null));
}
try
{
var response = await _identity.RequestUserInfo(userInfoUrl, accessToken);
return(MobileConnectStatus.UserInfo(response));
}
catch (MobileConnectInvalidArgumentException e)
{
Log.Error(() => $"An invalid argument was passed to RequestUserInfo arg={e.Argument}");
return(MobileConnectStatus.Error(ErrorCodes.InvalidArgument, string.Format("An argument was found to be invalid during the process. The argument was {0}.", e.Argument), e));
}
catch (MobileConnectEndpointHttpException e)
{
Log.Error(() => $"A general http error occurred in RequestUserInfo userInfoUrl={userInfoUrl}");
return(MobileConnectStatus.Error(ErrorCodes.HttpFailure, "An HTTP failure occured while calling the operator token endpoint, the endpoint may be inaccessible", e));
}
catch (Exception e)
{
Log.Error(() => $"A general error occurred in RequestUserInfo userInfoUrl={userInfoUrl}");
return(MobileConnectStatus.Error(ErrorCodes.Unknown, "A failure occured while requesting a token", e));
}
}
internal static async Task <MobileConnectStatus> AttemptDiscoveryAfterOperatorSelection(IDiscovery discovery, Uri redirectedUrl, MobileConnectConfig config)
{
var parsedRedirect = discovery.ParseDiscoveryRedirect(redirectedUrl);
if (!parsedRedirect.HasMCCAndMNC)
{
return(MobileConnectStatus.StartDiscovery());
}
DiscoveryResponse response;
try
{
response = await discovery.CompleteSelectedOperatorDiscoveryAsync(config, config.RedirectUrl, parsedRedirect.SelectedMCC, parsedRedirect.SelectedMNC);
if (response.ResponseData?.subscriber_id == null)
{
response.ResponseData.subscriber_id = parsedRedirect.EncryptedMSISDN;
}
}
catch (MobileConnectInvalidArgumentException e)
{
return(MobileConnectStatus.Error("invalid_argument", string.Format("An argument was found to be invalid during the process. The argument was {0}.", e.Argument), e));
}
catch (MobileConnectEndpointHttpException e)
{
return(MobileConnectStatus.Error("http_failure", "An HTTP failure occured while calling the discovery endpoint, the endpoint may be inaccessible", e));
}
catch (Exception e)
{
return(MobileConnectStatus.Error("unknown_error", "An unknown error occured while calling the Discovery service to obtain operator details", e));
}
return(GenerateStatusFromDiscoveryResponse(discovery, response));
}
internal static async Task <MobileConnectStatus> AttemptDiscovery(IDiscovery discovery, string msisdn, string mcc, string mnc, IEnumerable <BasicKeyValuePair> cookies, MobileConnectConfig config, MobileConnectRequestOptions options)
{
DiscoveryResponse response = null;
try
{
DiscoveryOptions discoveryOptions = options?.DiscoveryOptions ?? new DiscoveryOptions();
discoveryOptions.MSISDN = msisdn;
discoveryOptions.IdentifiedMCC = mcc;
discoveryOptions.IdentifiedMNC = mnc;
discoveryOptions.RedirectUrl = config.RedirectUrl;
response = await discovery.StartAutomatedOperatorDiscoveryAsync(config, config.RedirectUrl, discoveryOptions, cookies);
}
catch (MobileConnectInvalidArgumentException e)
{
return(MobileConnectStatus.Error("invalid_argument", string.Format("An argument was found to be invalid during the process. The argument was {0}.", e.Argument), e));
}
catch (MobileConnectEndpointHttpException e)
{
return(MobileConnectStatus.Error("http_failure", "An HTTP failure occured while calling the discovery endpoint, the endpoint may be inaccessible", e));
}
catch (Exception e)
{
return(MobileConnectStatus.Error("unknown_error", "An unknown error occured while calling the Discovery service to obtain operator details", e));
}
return(GenerateStatusFromDiscoveryResponse(discovery, response));
}
private MobileConnectStatus GetCacheError()
{
if (!_cacheWithSessionId)
{
return(MobileConnectStatus.Error("cache_disabled", "cache is not enabled for session id caching of discovery responses", null));
}
return(MobileConnectStatus.Error("sdksession_not_found", "session not found or expired, please try again", null));
}
private MobileConnectStatus GetCacheError()
{
if (!_cacheWithSessionId)
{
return(MobileConnectStatus.Error(ErrorCodes.CacheDisabled, "cache is not enabled for session id caching of discovery responses", null));
}
return(MobileConnectStatus.Error(ErrorCodes.InvalidSdkSession, "session not found or expired, please try again", null));
}
private static MobileConnectStatus IsSupported(string serviceUrl, string service, string issuer)
{
if (string.IsNullOrEmpty(serviceUrl))
{
Log.Error(() => $"{service} was not supported for issuer={issuer}");
return(MobileConnectStatus.Error(ErrorCodes.NotSupported, $"{service} not supported with current operator", null));
}
return(null);
}
internal static async Task <MobileConnectStatus> RequestToken(IAuthentication authentication, DiscoveryResponse discoveryResponse, Uri redirectedUrl, string expectedState, string expectedNonce, MobileConnectConfig config)
{
RequestTokenResponse response;
if (string.IsNullOrEmpty(expectedState))
{
return(MobileConnectStatus.Error("required_arg_missing", "ExpectedState argument was not supplied, this is needed to prevent Cross-Site Request Forgery", null));
}
if (string.IsNullOrEmpty(expectedNonce))
{
return(MobileConnectStatus.Error("required_arg_missing", "expectedNonce argument was not supplied, this is needed to prevent Replay Attacks", null));
}
var actualState = HttpUtils.ExtractQueryValue(redirectedUrl.Query, "state");
if (expectedState != actualState)
{
return(MobileConnectStatus.Error("invalid_state", "State values do not match, this could suggest an attempted Cross-Site Request Forgery", null));
}
try
{
var code = HttpUtils.ExtractQueryValue(redirectedUrl.Query, "code");
var clientId = discoveryResponse?.ResponseData?.response?.client_id ?? config.ClientId;
var clientSecret = discoveryResponse?.ResponseData?.response?.client_secret ?? config.ClientSecret;
var requestTokenUrl = discoveryResponse?.OperatorUrls?.RequestTokenUrl;
response = await authentication.RequestTokenAsync(clientId, clientSecret, requestTokenUrl, config.RedirectUrl, code);
if (response.ErrorResponse != null)
{
return(MobileConnectStatus.Error(response.ErrorResponse.Error, response.ErrorResponse.ErrorDescription, null, response));
}
if (!Validation.IsExpectedNonce(response.ResponseData.IdToken, expectedNonce))
{
return(MobileConnectStatus.Error("invalid_nonce", "Nonce values do not match, this could suggest an attempted Replay Attack", null));
}
}
catch (MobileConnectInvalidArgumentException e)
{
return(MobileConnectStatus.Error("invalid_argument", string.Format("An argument was found to be invalid during the process. The argument was {0}.", e.Argument), e));
}
catch (MobileConnectEndpointHttpException e)
{
return(MobileConnectStatus.Error("http_failure", "An HTTP failure occured while calling the operator token endpoint, the endpoint may be inaccessible", e));
}
catch (Exception e)
{
return(MobileConnectStatus.Error("unknown_error", "A failure occured while requesting a token", e));
}
return(MobileConnectStatus.Complete(response));
}
private async Task <MobileConnectStatus> CacheIfRequired(MobileConnectStatus status)
{
if (!_cacheWithSessionId || status.ResponseType != MobileConnectResponseType.StartAuthorization || status.DiscoveryResponse == null)
{
return(status);
}
var sessionId = GenerateUniqueString();
await _discovery.Cache.Add(sessionId, status.DiscoveryResponse).ConfigureAwait(false);
status.SDKSession = sessionId;
return(status);
}
internal static async Task <MobileConnectStatus> HandleUrlRedirect(IDiscovery discovery, IAuthentication authentication, Uri redirectedUrl, DiscoveryResponse discoveryResponse, string expectedState, string expectedNonce, MobileConnectConfig config)
{
if (HttpUtils.ExtractQueryValue(redirectedUrl.Query, "code") != null)
{
return(await RequestToken(authentication, discoveryResponse, redirectedUrl, expectedState, expectedNonce, config));
}
else if (HttpUtils.ExtractQueryValue(redirectedUrl.Query, "mcc_mnc") != null)
{
return(await AttemptDiscoveryAfterOperatorSelection(discovery, redirectedUrl, config));
}
string errorCode = HttpUtils.ExtractQueryValue(redirectedUrl.Query, "error") ?? "invalid_request";
string errorDesc = HttpUtils.ExtractQueryValue(redirectedUrl.Query, "error_description") ?? string.Format("Unable to parse next step using {0}", redirectedUrl.AbsoluteUri);
return(MobileConnectStatus.Error(errorCode, errorDesc, null));
}
private static MobileConnectStatus GenerateStatusFromDiscoveryResponse(IDiscovery discovery, DiscoveryResponse response)
{
if (!response.Cached && response.ErrorResponse != null)
{
return(MobileConnectStatus.Error(response.ResponseData?.error, response.ResponseData?.description ?? "Failure at discovery endpoint, see response for more information", null, response));
}
var operatorSelectionUrl = discovery.ExtractOperatorSelectionURL(response);
if (!string.IsNullOrEmpty(operatorSelectionUrl))
{
return(MobileConnectStatus.OperatorSelection(operatorSelectionUrl));
}
return(MobileConnectStatus.StartAuthorization(response));
}
private async Task <MobileConnectStatus> CacheIfRequired(MobileConnectStatus status)
{
if (!_cacheWithSessionId ||
status.ResponseType != MobileConnectResponseType.StartAuthentication ||
status.DiscoveryResponse == null)
{
return(status);
}
var sessionId = Security.GenerateSecureNonce();
await _sessionCahce.Add(sessionId, status.DiscoveryResponse).ConfigureAwait(false);
status.SDKSession = sessionId;
return(status);
}
internal static async Task <MobileConnectStatus> RefreshToken(IAuthenticationService authentication, string refreshToken, DiscoveryResponse discoveryResponse, MobileConnectConfig config)
{
Validate.RejectNull(discoveryResponse, "discoveryResponse");
Validate.RejectNullOrEmpty(refreshToken, "refreshToken");
if (!IsUsableDiscoveryResponse(discoveryResponse))
{
return(MobileConnectStatus.StartDiscovery());
}
string refreshTokenUrl = discoveryResponse.OperatorUrls.RefreshTokenUrl ?? discoveryResponse.OperatorUrls.RequestTokenUrl;
var notSupported = IsSupported(refreshTokenUrl, "Refresh", discoveryResponse.ProviderMetadata?.Issuer);
if (notSupported != null)
{
return(notSupported);
}
string clientId = discoveryResponse.ResponseData.response.client_id ?? config.ClientId;
string clientSecret = discoveryResponse.ResponseData.response.client_secret ?? config.ClientSecret;
try
{
RequestTokenResponse requestTokenResponse = await authentication.RefreshTokenAsync(clientId, clientSecret, refreshTokenUrl, refreshToken);
ErrorResponse errorResponse = requestTokenResponse.ErrorResponse;
if (errorResponse != null)
{
Log.Error(() => $"Responding with responseType={MobileConnectResponseType.Error} for refreshToken for authentication service responded with error={errorResponse.Error}");
return(MobileConnectStatus.Error(errorResponse));
}
else
{
Log.Info(() => $"Refresh token success");
return(MobileConnectStatus.Complete(requestTokenResponse));
}
}
catch (Exception e)
{
Log.Error(() => $"RefreshToken failed", e);
return(MobileConnectStatus.Error(ErrorCodes.Unknown, "Refresh token error", e));
}
}
internal static MobileConnectStatus StartAuthorization(IAuthentication authentication, DiscoveryResponse discoveryResponse, string encryptedMSISDN, string state, string nonce, MobileConnectConfig config, MobileConnectRequestOptions options)
{
StartAuthenticationResponse response;
try
{
string clientId = discoveryResponse?.ResponseData?.response?.client_id ?? config.ClientId;
string authorizationUrl = discoveryResponse?.OperatorUrls?.AuthorizationUrl;
response = authentication.StartAuthentication(clientId, authorizationUrl, config.RedirectUrl, state, nonce, config.AuthorizationScope, config.AuthorizationMaxAge, config.AuthorizationAcrValues, encryptedMSISDN, options?.AuthenticationOptions);
}
catch (MobileConnectInvalidArgumentException e)
{
return(MobileConnectStatus.Error("invalid_argument", string.Format("An argument was found to be invalid during the process. The argument was {0}.", e.Argument), e));
}
catch (Exception e)
{
return(MobileConnectStatus.Error("unknown_error", "An unknown error occured while generating an authorization url", e));
}
return(MobileConnectStatus.Authorization(response.Url, state, nonce));
}
private static MobileConnectStatus HandleTokenResponse(IAuthenticationService authentication, RequestTokenResponse response, string clientId, string issuer, string expectedNonce,
string version, JWKeyset jwks, MobileConnectRequestOptions options)
{
if (response.ErrorResponse != null)
{
return(MobileConnectStatus.Error(response.ErrorResponse.Error, response.ErrorResponse.ErrorDescription, null, response));
}
response.ValidationResult = authentication.ValidateTokenResponse(response, clientId, issuer, expectedNonce, options?.MaxAge, jwks, version);
var validationOptions = options?.TokenValidationOptions ?? new TokenValidationOptions();
if (!validationOptions.AcceptedValidationResults.HasFlag(response.ValidationResult))
{
Log.Error(() => $"A generated tokenResponse was invalid issuer={issuer} version={version} result={response.ValidationResult}");
return(MobileConnectStatus.Error(ErrorCodes.InvalidToken, $"The token was found to be invalid with the validation result {response.ValidationResult}", null, response));
}
else if (response.ValidationResult != TokenValidationResult.Valid)
{
Log.Warning(() => $"A generated tokenResponse was invalid but accepted issuer={issuer} version={version} result={response.ValidationResult}");
}
return(MobileConnectStatus.Complete(response));
}
internal static async Task <MobileConnectStatus> RequestHeadlessAuthentication(IAuthenticationService authentication, IJWKeysetService jwks, IIdentityService identity, DiscoveryResponse discoveryResponse, string encryptedMSISDN,
string state, string nonce, MobileConnectConfig config, MobileConnectRequestOptions options, CancellationToken cancellationToken = default(CancellationToken))
{
if (!IsUsableDiscoveryResponse(discoveryResponse))
{
return(MobileConnectStatus.StartDiscovery());
}
MobileConnectStatus status;
try
{
string clientId = discoveryResponse.ResponseData.response.client_id ?? config.ClientId;
string clientSecret = discoveryResponse.ResponseData.response.client_secret;
string authorizationUrl = discoveryResponse.OperatorUrls.AuthorizationUrl;
string tokenUrl = discoveryResponse.OperatorUrls.RequestTokenUrl;
string issuer = discoveryResponse.ProviderMetadata.Issuer;
SupportedVersions supportedVersions = discoveryResponse.ProviderMetadata.MobileConnectVersionSupported;
AuthenticationOptions authOptions = options?.AuthenticationOptions ?? new AuthenticationOptions();
authOptions.ClientName = discoveryResponse.ApplicationShortName;
var jwksTask = jwks.RetrieveJWKSAsync(discoveryResponse.OperatorUrls.JWKSUrl);
var tokenTask = authentication.RequestHeadlessAuthentication(clientId, clientSecret, authorizationUrl, tokenUrl, config.RedirectUrl, state, nonce,
encryptedMSISDN, supportedVersions, authOptions, cancellationToken);
// execute both tasks in parallel
await Task.WhenAll(tokenTask, jwksTask).ConfigureAwait(false);
RequestTokenResponse response = tokenTask.Result;
status = HandleTokenResponse(authentication, response, clientId, issuer, nonce,
discoveryResponse.ProviderMetadata.MobileConnectVersionSupported.MaxSupportedVersionString, jwksTask.Result, options);
}
catch (MobileConnectInvalidArgumentException e)
{
Log.Error(() => $"An invalid argument was passed to RequestHeadlessAuthentication arg={e.Argument}");
return(MobileConnectStatus.Error(ErrorCodes.InvalidArgument, string.Format("An argument was found to be invalid during the process. The argument was {0}.", e.Argument), e));
}
catch (MobileConnectEndpointHttpException e)
{
Log.Error(() => $"A general http error occurred in RequestHeadlessAuthentication state={state} nonce={nonce} authUrl={discoveryResponse.OperatorUrls.AuthorizationUrl} tokenUrl={discoveryResponse.OperatorUrls.RequestTokenUrl}");
return(MobileConnectStatus.Error(ErrorCodes.HttpFailure, "An HTTP failure occured while calling the discovery endpoint, the endpoint may be inaccessible", e));
}
catch (Exception e)
{
Log.Error(() => $"A general error occurred in RequestHeadlessAuthentication state={state} nonce={nonce} authUrl={discoveryResponse.OperatorUrls.AuthorizationUrl} tokenUrl={discoveryResponse.OperatorUrls.RequestTokenUrl}");
return(MobileConnectStatus.Error(ErrorCodes.Unknown, "An unknown error occured while generating an authorization url", e));
}
if (status.ResponseType == MobileConnectResponseType.Error ||
!options.AutoRetrieveIdentityHeadless || string.IsNullOrEmpty(discoveryResponse.OperatorUrls.PremiumInfoUrl))
{
return(status);
}
var identityStatus = await RequestIdentity(identity, discoveryResponse, status.TokenResponse.ResponseData.AccessToken, config, options);
status.IdentityResponse = identityStatus.IdentityResponse;
return(status);
}
internal static async Task <MobileConnectStatus> RequestToken(IAuthenticationService authentication, IJWKeysetService jwks, DiscoveryResponse discoveryResponse, Uri redirectedUrl, string expectedState,
string expectedNonce, MobileConnectConfig config, MobileConnectRequestOptions options)
{
RequestTokenResponse response;
if (!IsUsableDiscoveryResponse(discoveryResponse))
{
return(MobileConnectStatus.StartDiscovery());
}
if (string.IsNullOrEmpty(expectedState))
{
return(MobileConnectStatus.Error(ErrorCodes.InvalidArgument, "ExpectedState argument was not supplied, this is needed to prevent Cross-Site Request Forgery", null));
}
if (string.IsNullOrEmpty(expectedNonce))
{
return(MobileConnectStatus.Error(ErrorCodes.InvalidArgument, "expectedNonce argument was not supplied, this is needed to prevent Replay Attacks", null));
}
var actualState = HttpUtils.ExtractQueryValue(redirectedUrl.Query, "state");
if (expectedState != actualState)
{
return(MobileConnectStatus.Error(ErrorCodes.InvalidState, "State values do not match, this could suggest an attempted Cross-Site Request Forgery", null));
}
try
{
var code = HttpUtils.ExtractQueryValue(redirectedUrl.Query, "code");
var clientId = discoveryResponse.ResponseData.response.client_id ?? config.ClientId;
var clientSecret = discoveryResponse.ResponseData.response.client_secret ?? config.ClientSecret;
var requestTokenUrl = discoveryResponse.OperatorUrls.RequestTokenUrl;
var issuer = discoveryResponse.ProviderMetadata.Issuer;
var tokenTask = authentication.RequestTokenAsync(clientId, clientSecret, requestTokenUrl, config.RedirectUrl, code);
var jwksTask = jwks.RetrieveJWKSAsync(discoveryResponse.OperatorUrls.JWKSUrl);
// execute both tasks in parallel
await Task.WhenAll(tokenTask, jwksTask).ConfigureAwait(false);
response = tokenTask.Result;
var maxSupportedVersion = discoveryResponse.ProviderMetadata?.MobileConnectVersionSupported == null ? "mc_v1.1" : discoveryResponse.ProviderMetadata.MobileConnectVersionSupported.MaxSupportedVersionString;
return(HandleTokenResponse(authentication, response, clientId, issuer, expectedNonce,
maxSupportedVersion, jwksTask.Result, options));
}
catch (MobileConnectInvalidArgumentException e)
{
Log.Error(() => $"An invalid argument was passed to RequestToken arg={e.Argument}");
return(MobileConnectStatus.Error(ErrorCodes.InvalidArgument, string.Format("An argument was found to be invalid during the process. The argument was {0}.", e.Argument), e));
}
catch (MobileConnectEndpointHttpException e)
{
Log.Error(() => $"A general http error occurred in RequestToken redirectedUrl={redirectedUrl} requestTokenUrl={discoveryResponse.OperatorUrls.RequestTokenUrl} jwksUrl={discoveryResponse.OperatorUrls.JWKSUrl}");
return(MobileConnectStatus.Error(ErrorCodes.HttpFailure, "An HTTP failure occured while calling the operator token endpoint, the endpoint may be inaccessible", e));
}
catch (Exception e)
{
Log.Error(() => $"A general error occurred in RequestToken redirectedUrl={redirectedUrl} requestTokenUrl={discoveryResponse.OperatorUrls.RequestTokenUrl} jwksUrl={discoveryResponse.OperatorUrls.JWKSUrl}");
return(MobileConnectStatus.Error(ErrorCodes.Unknown, "A failure occured while requesting a token", e));
}
}
