/// <summary>
/// Validates the credentials according to the given <paramref name="requirements"/>.
/// The <see cref="CloudStorageCredentials.CloudStorageId"/> is not part of the validation,
/// because it is not used for authorization itself.
/// </summary>
/// <param name="credentials">The credentials to validate.</param>
/// <param name="requirements">The requirements the credentials must comply with.</param>
/// <param name="allowAnonymous">Specifies whether username and password can be empty.</param>
/// <exception cref="InvalidParameterException">Is thrown when the credentials are invalid.</exception>
public static void ThrowIfInvalid(this CloudStorageCredentials credentials, CloudStorageCredentialsRequirements requirements, bool allowAnonymous = false)
{
if (credentials == null)
{
throw new InvalidParameterException(nameof(CloudStorageCredentials));
}
if (requirements.NeedsToken() && (credentials.Token == null))
{
throw new InvalidParameterException(string.Format("{0}.{1}", nameof(CloudStorageCredentials), nameof(CloudStorageCredentials.Token)));
}
if (requirements.NeedsUrl() && string.IsNullOrWhiteSpace(credentials.Url))
{
throw new InvalidParameterException(string.Format("{0}.{1}", nameof(CloudStorageCredentials), nameof(CloudStorageCredentials.Url)));
}
bool usernameRequiredOrProvided = !allowAnonymous || !string.IsNullOrEmpty(credentials.Username);
if (usernameRequiredOrProvided)
{
if (requirements.NeedsUsername() && string.IsNullOrWhiteSpace(credentials.Username))
{
throw new InvalidParameterException(string.Format("{0}.{1}", nameof(CloudStorageCredentials), nameof(CloudStorageCredentials.Username)));
}
if (requirements.NeedsPassword() && (credentials.Password == null))
{
throw new InvalidParameterException(string.Format("{0}.{1}", nameof(CloudStorageCredentials), nameof(CloudStorageCredentials.Password)));
}
}
}
/// <summary>
/// Validates the credentials according to the given <paramref name="requirements"/>.
/// The <see cref="CloudStorageCredentials.CloudStorageId"/> is not part of the validation,
/// because it is not used for authorization itself.
/// </summary>
/// <param name="credentials">The credentials to validate.</param>
/// <param name="requirements">The requirements the credentials must comply with.</param>
/// <exception cref="InvalidParameterException">Is thrown when the credentials are invalid.</exception>
public static void ThrowIfInvalid(this CloudStorageCredentials credentials, CloudStorageCredentialsRequirements requirements)
{
if (credentials == null)
{
throw new InvalidParameterException(nameof(CloudStorageCredentials));
}
if (requirements.NeedsToken() && (credentials.Token == null))
{
throw new InvalidParameterException(string.Format("{0}.{1}", nameof(CloudStorageCredentials), nameof(CloudStorageCredentials.Token)));
}
if (requirements.NeedsUrl() && string.IsNullOrWhiteSpace(credentials.Url))
{
throw new InvalidParameterException(string.Format("{0}.{1}", nameof(CloudStorageCredentials), nameof(CloudStorageCredentials.Url)));
}
if (requirements.NeedsUsername() && string.IsNullOrWhiteSpace(credentials.Username))
{
throw new InvalidParameterException(string.Format("{0}.{1}", nameof(CloudStorageCredentials), nameof(CloudStorageCredentials.Username)));
}
if (requirements.NeedsPassword() && (credentials.Password == null))
{
throw new InvalidParameterException(string.Format("{0}.{1}", nameof(CloudStorageCredentials), nameof(CloudStorageCredentials.Password)));
}
}
public CloudStorageAccountViewModel(
INavigationService navigationService,
ILanguageService languageService,
ISvgIconService svgIconService,
IBaseUrlService webviewBaseUrl,
IStoryBoardService storyBoardService,
IFeedbackService feedbackService,
ICloudStorageClientFactory cloudStorageClientFactory,
SerializeableCloudStorageCredentials model)
: base(navigationService, languageService, svgIconService, webviewBaseUrl)
{
_storyBoardService = storyBoardService ?? throw new ArgumentNullException(nameof(storyBoardService));
_feedbackService = feedbackService ?? throw new ArgumentNullException(nameof(feedbackService));
Model = model;
_credentialsRequirements = cloudStorageClientFactory.GetOrCreate(Model.CloudStorageId).CredentialsRequirements;
CloudServiceName = cloudStorageClientFactory.GetCloudStorageMetadata(Model.CloudStorageId).Title;
GoBackCommand = new RelayCommand(GoBack);
CancelCommand = new RelayCommand(Cancel);
OkCommand = new RelayCommand(Ok);
}
/// <summary>
/// Checks whether this requirement needs a secure flag.
/// </summary>
/// <param name="requirements">Requirement to check.</param>
/// <returns>Returns true if if requires a secure flag, otherwise false.</returns>
public static bool NeedsSecureFlag(this CloudStorageCredentialsRequirements requirements)
{
return(requirements == CloudStorageCredentialsRequirements.UsernamePasswordUrlSecure);
}
/// <summary>
/// Checks whether this requirement needs a password.
/// </summary>
/// <param name="requirements">Requirement to check.</param>
/// <returns>Returns true if if requires a password, otherwise false.</returns>
public static bool NeedsPassword(this CloudStorageCredentialsRequirements requirements)
{
return(requirements != CloudStorageCredentialsRequirements.Token);
}