jellyfin/MediaBrowser.Common/Net/INetworkManager.cs
2020-10-31 18:21:46 +00:00

232 lines
11 KiB
C#

#nullable enable
using System;
using System.Collections.Generic;
using System.Net;
using System.Net.NetworkInformation;
using Microsoft.AspNetCore.Http;
using NetCollection = System.Collections.ObjectModel.Collection<MediaBrowser.Common.Net.IPObject>;
namespace MediaBrowser.Common.Net
{
/// <summary>
/// Interface for the NetworkManager class.
/// </summary>
public interface INetworkManager
{
/// <summary>
/// Event triggered on network changes.
/// </summary>
event EventHandler NetworkChanged;
/// <summary>
/// Gets the published server urls list.
/// </summary>
Dictionary<IPNetAddress, string> PublishedServerUrls { get; }
/// <summary>
/// Gets a value indicating whether is all IPv6 interfaces are trusted as internal.
/// </summary>
bool TrustAllIP6Interfaces { get; }
/// <summary>
/// Gets the remote address filter.
/// </summary>
NetCollection RemoteAddressFilter { get; }
/// <summary>
/// Gets or sets a value indicating whether iP6 is enabled.
/// </summary>
bool IsIP6Enabled { get; set; }
/// <summary>
/// Gets or sets a value indicating whether iP4 is enabled.
/// </summary>
bool IsIP4Enabled { get; set; }
/// <summary>
/// Calculates the list of interfaces to use for Kestrel.
/// </summary>
/// <returns>A NetCollection object containing all the interfaces to bind.
/// If all the interfaces are specified, and none are excluded, it returns zero items
/// to represent any address.</returns>
/// <param name="individualInterfaces">When false, return <see cref="IPAddress.Any"/> or <see cref="IPAddress.IPv6Any"/> for all interfaces.</param>
NetCollection GetAllBindInterfaces(bool individualInterfaces = false);
/// <summary>
/// Returns a collection containing the loopback interfaces.
/// </summary>
/// <returns>Netcollection.</returns>
NetCollection GetLoopbacks();
/// <summary>
/// Retrieves the bind address to use in system url's. (Server Discovery, PlayTo, LiveTV, SystemInfo)
/// If no bind addresses are specified, an internal interface address is selected.
/// The priority of selection is as follows:-
///
/// The value contained in the startup parameter --published-server-url.
///
/// If the user specified custom subnet overrides, the correct subnet for the source address.
///
/// If the user specified bind interfaces to use:-
/// The bind interface that contains the source subnet.
/// The first bind interface specified that suits best first the source's endpoint. eg. external or internal.
///
/// If the source is from a public subnet address range and the user hasn't specified any bind addresses:-
/// The first public interface that isn't a loopback and contains the source subnet.
/// The first public interface that isn't a loopback. Priority is given to interfaces with gateways.
/// An internal interface if there are no public ip addresses.
///
/// If the source is from a private subnet address range and the user hasn't specified any bind addresses:-
/// The first private interface that contains the source subnet.
/// The first private interface that isn't a loopback. Priority is given to interfaces with gateways.
///
/// If no interfaces meet any of these criteria, then a loopback address is returned.
///
/// Interface that have been specifically excluded from binding are not used in any of the calculations.
/// </summary>
/// <param name="source">Source of the request.</param>
/// <param name="port">Optional port returned, if it's part of an override.</param>
/// <returns>IP Address to use, or loopback address if all else fails.</returns>
string GetBindInterface(IPObject source, out int? port);
/// <summary>
/// Retrieves the bind address to use in system url's. (Server Discovery, PlayTo, LiveTV, SystemInfo)
/// If no bind addresses are specified, an internal interface address is selected.
/// (See <see cref="GetBindInterface(IPObject, out int?)"/>.
/// </summary>
/// <param name="source">Source of the request.</param>
/// <param name="port">Optional port returned, if it's part of an override.</param>
/// <returns>IP Address to use, or loopback address if all else fails.</returns>
string GetBindInterface(HttpRequest source, out int? port);
/// <summary>
/// Retrieves the bind address to use in system url's. (Server Discovery, PlayTo, LiveTV, SystemInfo)
/// If no bind addresses are specified, an internal interface address is selected.
/// (See <see cref="GetBindInterface(IPObject, out int?)"/>.
/// </summary>
/// <param name="source">IP address of the request.</param>
/// <param name="port">Optional port returned, if it's part of an override.</param>
/// <returns>IP Address to use, or loopback address if all else fails.</returns>
string GetBindInterface(IPAddress source, out int? port);
/// <summary>
/// Retrieves the bind address to use in system url's. (Server Discovery, PlayTo, LiveTV, SystemInfo)
/// If no bind addresses are specified, an internal interface address is selected.
/// (See <see cref="GetBindInterface(IPObject, out int?)"/>.
/// </summary>
/// <param name="source">Source of the request.</param>
/// <param name="port">Optional port returned, if it's part of an override.</param>
/// <returns>IP Address to use, or loopback address if all else fails.</returns>
string GetBindInterface(string source, out int? port);
/// <summary>
/// Checks to see if the ip address is specifically excluded in LocalNetworkAddresses.
/// </summary>
/// <param name="address">IP address to check.</param>
/// <returns>True if it is.</returns>
bool IsExcludedInterface(IPAddress address);
/// <summary>
/// Get a list of all the MAC addresses associated with active interfaces.
/// </summary>
/// <returns>List of MAC addresses.</returns>
IReadOnlyCollection<PhysicalAddress> GetMacAddresses();
/// <summary>
/// Checks to see if the IP Address provided matches an interface that has a gateway.
/// </summary>
/// <param name="addressObj">IP to check. Can be an IPAddress or an IPObject.</param>
/// <returns>Result of the check.</returns>
bool IsGatewayInterface(object? addressObj);
/// <summary>
/// Returns true if the address is a private address.
/// The config option TrustIP6Interfaces overrides this functions behaviour.
/// </summary>
/// <param name="address">Address to check.</param>
/// <returns>True or False.</returns>
bool IsPrivateAddressRange(IPObject address);
/// <summary>
/// Returns true if the address is part of the user defined LAN.
/// The config option TrustIP6Interfaces overrides this functions behaviour.
/// </summary>
/// <param name="address">IP to check.</param>
/// <returns>True if endpoint is within the LAN range.</returns>
bool IsInLocalNetwork(string address);
/// <summary>
/// Returns true if the address is part of the user defined LAN.
/// The config option TrustIP6Interfaces overrides this functions behaviour.
/// </summary>
/// <param name="address">IP to check.</param>
/// <returns>True if endpoint is within the LAN range.</returns>
bool IsInLocalNetwork(IPObject address);
/// <summary>
/// Returns true if the address is part of the user defined LAN.
/// The config option TrustIP6Interfaces overrides this functions behaviour.
/// </summary>
/// <param name="address">IP to check.</param>
/// <returns>True if endpoint is within the LAN range.</returns>
bool IsInLocalNetwork(IPAddress address);
/// <summary>
/// Attempts to convert the token to an IP address, permitting for interface descriptions and indexes.
/// eg. "eth1", or "TP-LINK Wireless USB Adapter".
/// </summary>
/// <param name="token">Token to parse.</param>
/// <param name="result">Resultant object's ip addresses, if successful.</param>
/// <returns>Success of the operation.</returns>
bool TryParseInterface(string token, out NetCollection? result);
/// <summary>
/// Parses an array of strings into a NetCollection.
/// </summary>
/// <param name="values">Values to parse.</param>
/// <param name="bracketed">When true, only include values in []. When false, ignore bracketed values.</param>
/// <returns>IPCollection object containing the value strings.</returns>
NetCollection CreateIPCollection(string[] values, bool bracketed = false);
/// <summary>
/// Returns all the internal Bind interface addresses.
/// </summary>
/// <returns>An internal list of interfaces addresses.</returns>
NetCollection GetInternalBindAddresses();
/// <summary>
/// Checks to see if an IP address is still a valid interface address.
/// </summary>
/// <param name="address">IP address to check.</param>
/// <returns>True if it is.</returns>
bool IsValidInterfaceAddress(IPAddress address);
/// <summary>
/// Returns true if the IP address is in the excluded list.
/// </summary>
/// <param name="ip">IP to check.</param>
/// <returns>True if excluded.</returns>
bool IsExcluded(IPAddress ip);
/// <summary>
/// Returns true if the IP address is in the excluded list.
/// </summary>
/// <param name="ip">IP to check.</param>
/// <returns>True if excluded.</returns>
bool IsExcluded(EndPoint ip);
/// <summary>
/// Gets the filtered LAN ip addresses.
/// </summary>
/// <param name="filter">Optional filter for the list.</param>
/// <returns>Returns a filtered list of LAN addresses.</returns>
NetCollection GetFilteredLANSubnets(NetCollection? filter = null);
/// <summary>
/// Reloads all settings and re-initialises the instance.
/// </summary>
/// <param name="configuration">The configuration to use.</param>
void UpdateSettings(object configuration);
}
}