/// <summary>
/// Determines whether the association with the specified handle is (still) valid.
/// </summary>
/// <param name="associationStore">The association store.</param>
/// <param name="containingMessage">The OpenID message that referenced this association handle.</param>
/// <param name="isPrivateAssociation">A value indicating whether a private association is expected.</param>
/// <param name="handle">The association handle.</param>
/// <returns>
/// <c>true</c> if the specified containing message is valid; otherwise, <c>false</c>.
/// </returns>
internal static bool IsValid(this IProviderAssociationStore associationStore, IProtocolMessage containingMessage, bool isPrivateAssociation, string handle)
{
Requires.NotNull(associationStore, "associationStore");
Requires.NotNull(containingMessage, "containingMessage");
Requires.NotNullOrEmpty(handle, "handle");
try {
return(associationStore.Deserialize(containingMessage, isPrivateAssociation, handle) != null);
} catch (ProtocolException) {
return(false);
}
}