/// <summary>
/// Create a permissions string to provide
/// <see cref="BlobSasBuilder.Permissions"/>.
/// </summary>
/// <returns>A permissions string.</returns>
internal static string ToPermissionsString(this SnapshotSasPermissions permissions)
{
var sb = new StringBuilder();
if ((permissions & SnapshotSasPermissions.Read) == SnapshotSasPermissions.Read)
{
sb.Append(Constants.Sas.Permissions.Read);
}
if ((permissions & SnapshotSasPermissions.Write) == SnapshotSasPermissions.Write)
{
sb.Append(Constants.Sas.Permissions.Write);
}
if ((permissions & SnapshotSasPermissions.Delete) == SnapshotSasPermissions.Delete)
{
sb.Append(Constants.Sas.Permissions.Delete);
}
if ((permissions & SnapshotSasPermissions.PermanentDelete) == SnapshotSasPermissions.PermanentDelete)
{
sb.Append(Constants.Sas.Permissions.PermanentDelete);
}
if ((permissions & SnapshotSasPermissions.SetImmutabilityPolicy) == SnapshotSasPermissions.SetImmutabilityPolicy)
{
sb.Append(Constants.Sas.Permissions.SetImmutabilityPolicy);
}
return(sb.ToString());
}
/// <summary>
/// Ensure the <see cref="BlobSasBuilder"/>'s properties are in a
/// consistent state.
/// </summary>
private void EnsureState()
{
// Container
if (String.IsNullOrEmpty(this.BlobName))
{
// Make sure the permission characters are in the correct order
this.Permissions = ContainerSasPermissions.Parse(this.Permissions).ToString();
this.Resource = Constants.Sas.Resource.Container;
}
// Blob or Snapshot
else
{
// Blob
if (String.IsNullOrEmpty(this.Snapshot))
{
// Make sure the permission characters are in the correct order
this.Permissions = BlobSasPermissions.Parse(this.Permissions).ToString();
this.Resource = Constants.Sas.Resource.Blob;
}
// Snapshot
else
{
// Make sure the permission characters are in the correct order
this.Permissions = SnapshotSasPermissions.Parse(this.Permissions).ToString();
this.Resource = Constants.Sas.Resource.BlobSnapshot;
}
}
if (String.IsNullOrEmpty(this.Version))
{
this.Version = SasQueryParameters.SasVersion;
}
}