mirror of
https://github.com/jellyfin/jellyfin.git
synced 2024-11-17 19:08:53 -07:00
386 lines
12 KiB
C#
386 lines
12 KiB
C#
using MediaBrowser.Model.Logging;
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Globalization;
|
|
using System.Linq;
|
|
using System.Net;
|
|
using System.Net.NetworkInformation;
|
|
using System.Net.Sockets;
|
|
using MoreLinq;
|
|
|
|
namespace MediaBrowser.Common.Implementations.Networking
|
|
{
|
|
public abstract class BaseNetworkManager
|
|
{
|
|
protected ILogger Logger { get; private set; }
|
|
private DateTime _lastRefresh;
|
|
|
|
protected BaseNetworkManager(ILogger logger)
|
|
{
|
|
Logger = logger;
|
|
}
|
|
|
|
private List<IPAddress> _localIpAddresses;
|
|
private readonly object _localIpAddressSyncLock = new object();
|
|
|
|
/// <summary>
|
|
/// Gets the machine's local ip address
|
|
/// </summary>
|
|
/// <returns>IPAddress.</returns>
|
|
public IEnumerable<IPAddress> GetLocalIpAddresses()
|
|
{
|
|
const int cacheMinutes = 5;
|
|
|
|
lock (_localIpAddressSyncLock)
|
|
{
|
|
var forceRefresh = (DateTime.UtcNow - _lastRefresh).TotalMinutes >= cacheMinutes;
|
|
|
|
if (_localIpAddresses == null || forceRefresh)
|
|
{
|
|
var addresses = GetLocalIpAddressesInternal().ToList();
|
|
|
|
_localIpAddresses = addresses;
|
|
_lastRefresh = DateTime.UtcNow;
|
|
|
|
return addresses;
|
|
}
|
|
}
|
|
|
|
return _localIpAddresses;
|
|
}
|
|
|
|
private IEnumerable<IPAddress> GetLocalIpAddressesInternal()
|
|
{
|
|
var list = GetIPsDefault()
|
|
.ToList();
|
|
|
|
if (list.Count == 0)
|
|
{
|
|
list.AddRange(GetLocalIpAddressesFallback());
|
|
}
|
|
|
|
return list.Where(FilterIpAddress).DistinctBy(i => i.ToString());
|
|
}
|
|
|
|
private bool FilterIpAddress(IPAddress address)
|
|
{
|
|
var addressString = address.ToString ();
|
|
|
|
if (addressString.StartsWith("169.", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
public bool IsInPrivateAddressSpace(string endpoint)
|
|
{
|
|
if (string.Equals(endpoint, "::1", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return true;
|
|
}
|
|
|
|
// Handle ipv4 mapped to ipv6
|
|
endpoint = endpoint.Replace("::ffff:", string.Empty);
|
|
|
|
// Private address space:
|
|
// http://en.wikipedia.org/wiki/Private_network
|
|
|
|
if (endpoint.StartsWith("172.", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return Is172AddressPrivate(endpoint);
|
|
}
|
|
|
|
return
|
|
|
|
endpoint.StartsWith("localhost", StringComparison.OrdinalIgnoreCase) ||
|
|
endpoint.StartsWith("127.", StringComparison.OrdinalIgnoreCase) ||
|
|
endpoint.StartsWith("10.", StringComparison.OrdinalIgnoreCase) ||
|
|
endpoint.StartsWith("192.168", StringComparison.OrdinalIgnoreCase) ||
|
|
endpoint.StartsWith("169.", StringComparison.OrdinalIgnoreCase);
|
|
}
|
|
|
|
private bool Is172AddressPrivate(string endpoint)
|
|
{
|
|
for (var i = 16; i <= 31; i++)
|
|
{
|
|
if (endpoint.StartsWith("172." + i.ToString(CultureInfo.InvariantCulture) + ".", StringComparison.OrdinalIgnoreCase))
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
public bool IsInLocalNetwork(string endpoint)
|
|
{
|
|
return IsInLocalNetworkInternal(endpoint, true);
|
|
}
|
|
|
|
public bool IsInLocalNetworkInternal(string endpoint, bool resolveHost)
|
|
{
|
|
if (string.IsNullOrWhiteSpace(endpoint))
|
|
{
|
|
throw new ArgumentNullException("endpoint");
|
|
}
|
|
|
|
IPAddress address;
|
|
if (IPAddress.TryParse(endpoint, out address))
|
|
{
|
|
var addressString = address.ToString();
|
|
|
|
int lengthMatch = 100;
|
|
if (address.AddressFamily == AddressFamily.InterNetwork)
|
|
{
|
|
lengthMatch = 4;
|
|
if (IsInPrivateAddressSpace(addressString))
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
else if (address.AddressFamily == AddressFamily.InterNetworkV6)
|
|
{
|
|
lengthMatch = 10;
|
|
if (IsInPrivateAddressSpace(endpoint))
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
|
|
// Should be even be doing this with ipv6?
|
|
if (addressString.Length >= lengthMatch)
|
|
{
|
|
var prefix = addressString.Substring(0, lengthMatch);
|
|
|
|
if (GetLocalIpAddresses().Any(i => i.ToString().StartsWith(prefix, StringComparison.OrdinalIgnoreCase)))
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
else if (resolveHost)
|
|
{
|
|
Uri uri;
|
|
if (Uri.TryCreate(endpoint, UriKind.RelativeOrAbsolute, out uri))
|
|
{
|
|
try
|
|
{
|
|
var host = uri.DnsSafeHost;
|
|
Logger.Debug("Resolving host {0}", host);
|
|
|
|
address = GetIpAddresses(host).FirstOrDefault();
|
|
|
|
if (address != null)
|
|
{
|
|
Logger.Debug("{0} resolved to {1}", host, address);
|
|
|
|
return IsInLocalNetworkInternal(address.ToString(), false);
|
|
}
|
|
}
|
|
catch (InvalidOperationException)
|
|
{
|
|
// Can happen with reverse proxy or IIS url rewriting
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
Logger.ErrorException("Error resovling hostname", ex);
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
public IEnumerable<IPAddress> GetIpAddresses(string hostName)
|
|
{
|
|
return Dns.GetHostAddresses(hostName);
|
|
}
|
|
|
|
private List<IPAddress> GetIPsDefault()
|
|
{
|
|
NetworkInterface[] interfaces;
|
|
|
|
try
|
|
{
|
|
interfaces = NetworkInterface.GetAllNetworkInterfaces();
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
Logger.ErrorException("Error in GetAllNetworkInterfaces", ex);
|
|
return new List<IPAddress>();
|
|
}
|
|
|
|
return interfaces.SelectMany(network => {
|
|
|
|
try
|
|
{
|
|
Logger.Debug("Querying interface: {0}. Type: {1}. Status: {2}", network.Name, network.NetworkInterfaceType, network.OperationalStatus);
|
|
|
|
var properties = network.GetIPProperties();
|
|
|
|
return properties.UnicastAddresses
|
|
.Where(i => i.IsDnsEligible)
|
|
.Select(i => i.Address)
|
|
.Where(i => i.AddressFamily == AddressFamily.InterNetwork)
|
|
.ToList();
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
Logger.ErrorException("Error querying network interface", ex);
|
|
return new List<IPAddress>();
|
|
}
|
|
|
|
}).DistinctBy(i => i.ToString())
|
|
.ToList();
|
|
}
|
|
|
|
private IEnumerable<IPAddress> GetLocalIpAddressesFallback()
|
|
{
|
|
var host = Dns.GetHostEntry(Dns.GetHostName());
|
|
|
|
// Reverse them because the last one is usually the correct one
|
|
// It's not fool-proof so ultimately the consumer will have to examine them and decide
|
|
return host.AddressList
|
|
.Where(i => i.AddressFamily == AddressFamily.InterNetwork)
|
|
.Reverse();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets a random port number that is currently available
|
|
/// </summary>
|
|
/// <returns>System.Int32.</returns>
|
|
public int GetRandomUnusedPort()
|
|
{
|
|
var listener = new TcpListener(IPAddress.Any, 0);
|
|
listener.Start();
|
|
var port = ((IPEndPoint)listener.LocalEndpoint).Port;
|
|
listener.Stop();
|
|
return port;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns MAC Address from first Network Card in Computer
|
|
/// </summary>
|
|
/// <returns>[string] MAC Address</returns>
|
|
public string GetMacAddress()
|
|
{
|
|
return NetworkInterface.GetAllNetworkInterfaces()
|
|
.Where(i => i.NetworkInterfaceType != NetworkInterfaceType.Loopback)
|
|
.Select(i => BitConverter.ToString(i.GetPhysicalAddress().GetAddressBytes()))
|
|
.FirstOrDefault();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Parses the specified endpointstring.
|
|
/// </summary>
|
|
/// <param name="endpointstring">The endpointstring.</param>
|
|
/// <returns>IPEndPoint.</returns>
|
|
public IPEndPoint Parse(string endpointstring)
|
|
{
|
|
return Parse(endpointstring, -1);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Parses the specified endpointstring.
|
|
/// </summary>
|
|
/// <param name="endpointstring">The endpointstring.</param>
|
|
/// <param name="defaultport">The defaultport.</param>
|
|
/// <returns>IPEndPoint.</returns>
|
|
/// <exception cref="System.ArgumentException">Endpoint descriptor may not be empty.</exception>
|
|
/// <exception cref="System.FormatException"></exception>
|
|
private static IPEndPoint Parse(string endpointstring, int defaultport)
|
|
{
|
|
if (String.IsNullOrEmpty(endpointstring)
|
|
|| endpointstring.Trim().Length == 0)
|
|
{
|
|
throw new ArgumentException("Endpoint descriptor may not be empty.");
|
|
}
|
|
|
|
if (defaultport != -1 &&
|
|
(defaultport < IPEndPoint.MinPort
|
|
|| defaultport > IPEndPoint.MaxPort))
|
|
{
|
|
throw new ArgumentException(String.Format("Invalid default port '{0}'", defaultport));
|
|
}
|
|
|
|
string[] values = endpointstring.Split(new char[] { ':' });
|
|
IPAddress ipaddy;
|
|
int port = -1;
|
|
|
|
//check if we have an IPv6 or ports
|
|
if (values.Length <= 2) // ipv4 or hostname
|
|
{
|
|
port = values.Length == 1 ? defaultport : GetPort(values[1]);
|
|
|
|
//try to use the address as IPv4, otherwise get hostname
|
|
if (!IPAddress.TryParse(values[0], out ipaddy))
|
|
ipaddy = GetIPfromHost(values[0]);
|
|
}
|
|
else if (values.Length > 2) //ipv6
|
|
{
|
|
//could [a:b:c]:d
|
|
if (values[0].StartsWith("[") && values[values.Length - 2].EndsWith("]"))
|
|
{
|
|
string ipaddressstring = String.Join(":", values.Take(values.Length - 1).ToArray());
|
|
ipaddy = IPAddress.Parse(ipaddressstring);
|
|
port = GetPort(values[values.Length - 1]);
|
|
}
|
|
else //[a:b:c] or a:b:c
|
|
{
|
|
ipaddy = IPAddress.Parse(endpointstring);
|
|
port = defaultport;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
throw new FormatException(String.Format("Invalid endpoint ipaddress '{0}'", endpointstring));
|
|
}
|
|
|
|
if (port == -1)
|
|
throw new ArgumentException(String.Format("No port specified: '{0}'", endpointstring));
|
|
|
|
return new IPEndPoint(ipaddy, port);
|
|
}
|
|
|
|
protected static readonly CultureInfo UsCulture = new CultureInfo("en-US");
|
|
|
|
/// <summary>
|
|
/// Gets the port.
|
|
/// </summary>
|
|
/// <param name="p">The p.</param>
|
|
/// <returns>System.Int32.</returns>
|
|
/// <exception cref="System.FormatException"></exception>
|
|
private static int GetPort(string p)
|
|
{
|
|
int port;
|
|
|
|
if (!Int32.TryParse(p, out port)
|
|
|| port < IPEndPoint.MinPort
|
|
|| port > IPEndPoint.MaxPort)
|
|
{
|
|
throw new FormatException(String.Format("Invalid end point port '{0}'", p));
|
|
}
|
|
|
|
return port;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the I pfrom host.
|
|
/// </summary>
|
|
/// <param name="p">The p.</param>
|
|
/// <returns>IPAddress.</returns>
|
|
/// <exception cref="System.ArgumentException"></exception>
|
|
private static IPAddress GetIPfromHost(string p)
|
|
{
|
|
var hosts = Dns.GetHostAddresses(p);
|
|
|
|
if (hosts == null || hosts.Length == 0)
|
|
throw new ArgumentException(String.Format("Host not found: {0}", p));
|
|
|
|
return hosts[0];
|
|
}
|
|
}
|
|
}
|