/// <summary>
/// Ensure the <see cref="BlobSasBuilder"/>'s properties are in a
/// consistent state.
/// </summary>
private void EnsureState()
{
// Container
if (String.IsNullOrEmpty(BlobName))
{
// Make sure the permission characters are in the correct order
Permissions = BlobContainerSasPermissions.Parse(Permissions).ToString();
Resource = Constants.Sas.Resource.Container;
}
// Blob or Snapshot
else
{
// Blob
if (String.IsNullOrEmpty(Snapshot))
{
// Make sure the permission characters are in the correct order
Permissions = BlobSasPermissions.Parse(Permissions).ToString();
Resource = Constants.Sas.Resource.Blob;
}
// Snapshot
else
{
// Make sure the permission characters are in the correct order
Permissions = SnapshotSasPermissions.Parse(Permissions).ToString();
Resource = Constants.Sas.Resource.BlobSnapshot;
}
}
if (String.IsNullOrEmpty(Version))
{
Version = SasQueryParameters.DefaultSasVersion;
}
}
/// <summary>
/// Sets the permissions for a blob container SAS.
/// </summary>
/// <param name="permissions">
/// <see cref="BlobContainerSasPermissions"/> containing the allowed permissions.
/// </param>
public void SetPermissions(BlobContainerSasPermissions permissions)
{
Permissions = permissions.ToPermissionsString();
}
/// <summary>
/// Initializes a new instance of the <see cref="BlobSasBuilder"/>
/// 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>
public BlobSasBuilder(BlobContainerSasPermissions permissions, DateTimeOffset expiresOn)
{
ExpiresOn = expiresOn;
SetPermissions(permissions);
}