/// <summary>
/// Initializes a new instance of the <see cref="AccountSasBuilder"/>
/// class to create a Blob Container Service Sas.
/// </summary>
/// <param name="permissions">
/// The time at which the shared access signature becomes invalid.
/// This field must be omitted if it has been specified in an
/// associated stored access policy.
/// </param>
/// <param name="expiresOn">
/// The time at which the shared access signature becomes invalid.
/// This field must be omitted if it has been specified in an
/// associated stored access policy.
/// </param>
/// <param name="services">
/// Specifies the services accessible from an account level shared access
/// signature.
/// </param>
/// <param name="resourceTypes">
/// Specifies the resource types accessible from an account level shared
/// access signature.
/// </param>
public AccountSasBuilder(
AccountSasPermissions permissions,
DateTimeOffset expiresOn,
AccountSasServices services,
AccountSasResourceTypes resourceTypes)
{
ExpiresOn = expiresOn;
SetPermissions(permissions);
Services = services;
ResourceTypes = resourceTypes;
}
/// <summary>
/// Parse a string representing which services are accessible from a
/// shared access signature.
/// </summary>
/// <param name="s">
/// A string representing which services are accessible.
/// </param>
/// <returns>
/// An <see cref="AccountSasServices"/> instance.
/// </returns>
internal static AccountSasServices ParseAccountServices(string s)
{
AccountSasServices svcs = default;
foreach (var ch in s)
{
svcs |= ch switch
{
Constants.Sas.AccountServices.Blob => AccountSasServices.Blobs,
Constants.Sas.AccountServices.Queue => AccountSasServices.Queues,
Constants.Sas.AccountServices.File => AccountSasServices.Files,
_ => throw Errors.InvalidService(ch),
};
}
return(svcs);
}
/// <summary>
/// Creates a string representing which services can be used for
/// <see cref="AccountSasBuilder.Services"/>.
/// </summary>
/// <returns>
/// A string representing which services are allowed.
/// </returns>
internal static string ToPermissionsString(this AccountSasServices services)
{
var sb = new StringBuilder();
if ((services & AccountSasServices.Blobs) == AccountSasServices.Blobs)
{
sb.Append(Constants.Sas.AccountServices.Blob);
}
if ((services & AccountSasServices.Queues) == AccountSasServices.Queues)
{
sb.Append(Constants.Sas.AccountServices.Queue);
}
if ((services & AccountSasServices.Files) == AccountSasServices.Files)
{
sb.Append(Constants.Sas.AccountServices.File);
}
return(sb.ToString());
}
