/// <summary>
/// Adds a network to the collection.
/// </summary>
/// <param name="source">The <see cref="Collection{IPObject}"/>.</param>
/// <param name="item">Item to add.</param>
/// <param name="itemsAreNetworks">If <c>true</c> the values are treated as subnets.
/// If <b>false</b> items are addresses.</param>
public static void AddItem(this Collection <IPObject> source, IPObject item, bool itemsAreNetworks = true)
{
if (!source.ContainsAddress(item) || !itemsAreNetworks)
{
source.Add(item);
}
}
/// <summary>
/// Adds a network to the collection.
/// </summary>
/// <param name="source">The <see cref="Collection{IPObject}"/>.</param>
/// <param name="item">Item to add.</param>
public static void AddItem(this Collection <IPObject> source, IPObject item)
{
if (!source.ContainsAddress(item))
{
source.Add(item);
}
}
/// <inheritdoc/>
public override bool Contains(IPObject address)
{
if (address is IPHost addressObj && addressObj.HasAddress)
{
foreach (IPAddress addr in addressObj.GetAddresses())
{
if (Contains(addr))
{
return(true);
}
}
}
/// <summary>
/// Returns true if the collection contains an item with the ip address,
/// or the ip address falls within any of the collection's network ranges.
/// </summary>
/// <param name="source">The <see cref="Collection{IPObject}"/>.</param>
/// <param name="item">The item to look for.</param>
/// <returns>True if the collection contains the item.</returns>
public static bool ContainsAddress(this Collection <IPObject> source, IPObject item)
{
if (source.Count == 0)
{
return(false);
}
if (item == null)
{
throw new ArgumentNullException(nameof(item));
}
foreach (var i in source)
{
if (i.Contains(item))
{
return(true);
}
}
return(false);
}