/// <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 resource types are accessible
/// from a shared access signature.
/// </summary>
/// <param name="s">
/// A string representing which resource types are accessible.
/// </param>
/// <returns>
/// An <see cref="AccountSasResourceTypes"/> instance.
/// </returns>
/// <remarks>
/// The order here matches the order used by the portal when generating SAS signatures.
/// </remarks>
internal static AccountSasResourceTypes ParseResourceTypes(string s)
{
AccountSasResourceTypes types = default;
foreach (var ch in s)
{
types |= ch switch
{
Constants.Sas.AccountResources.Service => AccountSasResourceTypes.Service,
Constants.Sas.AccountResources.Container => AccountSasResourceTypes.Container,
Constants.Sas.AccountResources.Object => AccountSasResourceTypes.Object,
_ => throw Errors.InvalidResourceType(ch),
};
}
return(types);
}
/// <summary>
/// Creates a string representing which resource types are allowed
/// for <see cref="AccountSasBuilder.ResourceTypes"/>.
/// </summary>
/// <returns>
/// A string representing which resource types are allowed.
/// </returns>
/// <remarks>
/// The order here matches the order used by the portal when generating SAS signatures.
/// </remarks>
internal static string ToPermissionsString(this AccountSasResourceTypes resourceTypes)
{
var sb = new StringBuilder();
if ((resourceTypes & AccountSasResourceTypes.Service) == AccountSasResourceTypes.Service)
{
sb.Append(Constants.Sas.AccountResources.Service);
}
if ((resourceTypes & AccountSasResourceTypes.Container) == AccountSasResourceTypes.Container)
{
sb.Append(Constants.Sas.AccountResources.Container);
}
if ((resourceTypes & AccountSasResourceTypes.Object) == AccountSasResourceTypes.Object)
{
sb.Append(Constants.Sas.AccountResources.Object);
}
return(sb.ToString());
}
