/// <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.DefaultSasVersion;
}
}
/// <summary>
/// Sets the permissions for a blob SAS.
/// </summary>
/// <param name="permissions">
/// <see cref="BlobSasPermissions"/> containing the allowed permissions.
/// </param>
public void SetPermissions(BlobSasPermissions permissions)
{
Permissions = permissions.ToPermissionsString();
}
/// <summary>
/// Initializes a new instance of the <see cref="BlobSasBuilder"/>
/// class to create a Blob 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(BlobSasPermissions permissions, DateTimeOffset expiresOn)
{
ExpiresOn = expiresOn;
SetPermissions(permissions);
}
