diff options
Diffstat (limited to 'Jellyfin.Networking/Manager/NetworkManager.cs')
| -rw-r--r-- | Jellyfin.Networking/Manager/NetworkManager.cs | 463 |
1 files changed, 249 insertions, 214 deletions
diff --git a/Jellyfin.Networking/Manager/NetworkManager.cs b/Jellyfin.Networking/Manager/NetworkManager.cs index 36a0a94a0..760938c40 100644 --- a/Jellyfin.Networking/Manager/NetworkManager.cs +++ b/Jellyfin.Networking/Manager/NetworkManager.cs @@ -7,6 +7,7 @@ using System.Net.NetworkInformation; using System.Net.Sockets; using System.Threading.Tasks; using MediaBrowser.Common.Configuration; +using MediaBrowser.Common.Net; using MediaBrowser.Model.Configuration; using Microsoft.AspNetCore.Http; using Microsoft.Extensions.Logging; @@ -19,8 +20,6 @@ namespace Jellyfin.Networking.Manager /// </summary> public class NetworkManager : INetworkManager, IDisposable { - private static NetworkManager? _instance; - /// <summary> /// Contains the description of the interface along with its index. /// </summary> @@ -48,7 +47,7 @@ namespace Jellyfin.Networking.Manager /// <summary> /// Holds the bind address overrides. /// </summary> - private readonly Dictionary<IPNetAddress, string> _overrideUrls; + private readonly Dictionary<IPNetAddress, string> _publishedServerUrls; /// <summary> /// Used to stop "event-racing conditions". @@ -105,7 +104,7 @@ namespace Jellyfin.Networking.Manager _interfaceAddresses = new NetCollection(unique: false); _macAddresses = new List<PhysicalAddress>(); _interfaceNames = new SortedList<string, int>(); - _overrideUrls = new Dictionary<IPNetAddress, string>(); + _publishedServerUrls = new Dictionary<IPNetAddress, string>(); UpdateSettings((ServerConfiguration)_configurationManager.CommonConfiguration); if (!IsIP6Enabled && !IsIP4Enabled) @@ -117,8 +116,6 @@ namespace Jellyfin.Networking.Manager NetworkChange.NetworkAvailabilityChanged += OnNetworkAvailabilityChanged; _configurationManager.ConfigurationUpdated += ConfigurationUpdated; - - Instance = this; } #pragma warning restore CS8618 // Non-nullable field is uninitialized. @@ -128,19 +125,6 @@ namespace Jellyfin.Networking.Manager public event EventHandler? NetworkChanged; /// <summary> - /// Gets the singleton of this object. - /// </summary> - public static NetworkManager Instance - { - get => GetInstance(); - - internal set - { - _instance = value; - } - } - - /// <summary> /// Gets the unique network location signature, which is updated on every network change. /// </summary> public static string NetworkLocationSignature { get; internal set; } = Guid.NewGuid().ToString(); @@ -176,7 +160,7 @@ namespace Jellyfin.Networking.Manager /// <summary> /// Gets the Published server override list. /// </summary> - public Dictionary<IPNetAddress, string> PublishedServerOverrides => _overrideUrls; + public Dictionary<IPNetAddress, string> PublishedServerUrls => _publishedServerUrls; /// <inheritdoc/> public void Dispose() @@ -198,9 +182,12 @@ namespace Jellyfin.Networking.Manager /// <inheritdoc/> public bool IsGatewayInterface(object? addressObj) { - var address = (addressObj is IPAddress addressIP) ? - addressIP : (addressObj is IPObject addressIPObj) ? - addressIPObj.Address : IPAddress.None; + var address = addressObj switch + { + IPAddress addressIp => addressIp, + IPObject addressIpObj => addressIpObj.Address, + _ => IPAddress.None + }; lock (_intLock) { @@ -320,243 +307,127 @@ namespace Jellyfin.Networking.Manager } /// <inheritdoc/> - public string GetBindInterface(object? source, out int? port) + public string GetBindInterface(string source, out int? port) { - bool chromeCast = false; - port = null; - // Parse the source object in an attempt to discover where the request originated. - IPObject sourceAddr; - if (source is HttpRequest sourceReq) + if (!string.IsNullOrEmpty(source)) { - port = sourceReq.Host.Port; - if (IPHost.TryParse(sourceReq.Host.Host, out IPHost host)) + if (string.Equals(source, "chromecast", StringComparison.OrdinalIgnoreCase)) { - sourceAddr = host; - } - else - { - // Assume it's external, as we cannot resolve the host. - sourceAddr = IPHost.None; - } - } - else if (source is string sourceStr && !string.IsNullOrEmpty(sourceStr)) - { - if (string.Equals(sourceStr, "chromecast", StringComparison.OrdinalIgnoreCase)) - { - chromeCast = true; // Just assign a variable so has source = true; - sourceAddr = IPNetAddress.IP4Loopback; + return GetBindInterface(IPNetAddress.IP4Loopback, out port); } - if (IPHost.TryParse(sourceStr, out IPHost host)) + if (IPHost.TryParse(source, out IPHost host)) { - sourceAddr = host; - } - else - { - // Assume it's external, as we cannot resolve the host. - sourceAddr = IPHost.None; + return GetBindInterface(host, out port); } } - else if (source is IPAddress sourceIP) + + return GetBindInterface(IPHost.None, out port); + } + + /// <inheritdoc/> + public string GetBindInterface(IPAddress source, out int? port) + { + return GetBindInterface(new IPNetAddress(source), out port); + } + + /// <inheritdoc/> + public string GetBindInterface(HttpRequest source, out int? port) + { + string result; + + if (source != null && IPHost.TryParse(source.Host.Host, out IPHost host)) { - sourceAddr = new IPNetAddress(sourceIP); + result = GetBindInterface(host, out port); + port ??= source.Host.Port; } else { - // If we have no idea, then assume it came from an external address. - sourceAddr = IPHost.None; + result = GetBindInterface(IPNetAddress.None, out port); + port ??= source?.Host.Port; } + return result; + } + + /// <inheritdoc/> + public string GetBindInterface(IPObject source, out int? port) + { + port = null; + bool isChromeCast = source == IPNetAddress.IP4Loopback; // Do we have a source? - bool haveSource = !sourceAddr.Address.Equals(IPAddress.None); + bool haveSource = !source.Address.Equals(IPAddress.None); + bool isExternal = false; if (haveSource) { - if (!IsIP6Enabled && sourceAddr.AddressFamily == AddressFamily.InterNetworkV6) + if (!IsIP6Enabled && source.AddressFamily == AddressFamily.InterNetworkV6) { _logger.LogWarning("IPv6 is disabled in JellyFin, but enabled in the OS. This may affect how the interface is selected."); } - if (!IsIP4Enabled && sourceAddr.AddressFamily == AddressFamily.InterNetwork) + if (!IsIP4Enabled && source.AddressFamily == AddressFamily.InterNetwork) { _logger.LogWarning("IPv4 is disabled in JellyFin, but enabled in the OS. This may affect how the interface is selected."); } - } - bool isExternal = haveSource && !IsInLocalNetwork(sourceAddr); + isExternal = !IsInLocalNetwork(source); - string bindPreference = string.Empty; - if (haveSource) - { - // Check for user override. - foreach (var addr in _overrideUrls) + if (MatchesPublishedServerUrl(source, isExternal, isChromeCast, out string result, out port)) { - // Remaining. Match anything. - if (addr.Key.Equals(IPAddress.Broadcast)) - { - bindPreference = addr.Value; - break; - } - else if ((addr.Key.Equals(IPAddress.Any) || addr.Key.Equals(IPAddress.IPv6Any)) && (isExternal || chromeCast)) - { - // External. - bindPreference = addr.Value; - break; - } - else if (addr.Key.Contains(sourceAddr)) - { - // Match ip address. - bindPreference = addr.Value; - break; - } + _logger.LogInformation("{0}: Using BindAddress {1}:{2}", source, result, port); + return result; } } _logger.LogDebug("GetBindInterface: Souce: {0}, External: {1}:", haveSource, isExternal); - if (!string.IsNullOrEmpty(bindPreference)) - { - // Has it got a port defined? - var parts = bindPreference.Split(':'); - if (parts.Length > 1) - { - if (int.TryParse(parts[1], out int p)) - { - bindPreference = parts[0]; - port = p; - } - } - - _logger.LogInformation("{0}: Using BindAddress {1}:{2}", sourceAddr, bindPreference, port); - return bindPreference; - } - - string ipresult; - // No preference given, so move on to bind addresses. lock (_intLock) { - var nc = _bindAddresses.Exclude(_bindExclusions).Where(p => !p.IsLoopback()); - - int count = nc.Count(); - if (count == 1 && (_bindAddresses[0].Equals(IPAddress.Any) || _bindAddresses.Equals(IPAddress.IPv6Any))) - { - // Ignore IPAny addresses. - count = 0; - } - - if (count != 0) + if (MatchesBindInterface(source, isExternal, out string result)) { - // Check to see if any of the bind interfaces are in the same subnet. - - IEnumerable<IPObject> bindResult; - IPAddress? defaultGateway = null; - - if (isExternal) - { - // Find all external bind addresses. Store the default gateway, but check to see if there is a better match first. - bindResult = nc.Where(p => !IsInLocalNetwork(p)).OrderBy(p => p.Tag); - defaultGateway = bindResult.FirstOrDefault()?.Address; - bindResult = bindResult.Where(p => p.Contains(sourceAddr)).OrderBy(p => p.Tag); - } - else - { - // Look for the best internal address. - bindResult = nc.Where(p => IsInLocalNetwork(p) && p.Contains(sourceAddr)).OrderBy(p => p.Tag); - } - - if (bindResult.Any()) - { - ipresult = FormatIP6String(bindResult.First().Address); - _logger.LogDebug("{0}: GetBindInterface: Has source, found a match bind interface subnets. {1}", sourceAddr, ipresult); - return ipresult; - } - - if (isExternal && defaultGateway != null) - { - ipresult = FormatIP6String(defaultGateway); - _logger.LogDebug("{0}: GetBindInterface: Using first user defined external interface. {1}", sourceAddr, ipresult); - return ipresult; - } - - ipresult = FormatIP6String(nc.First().Address); - _logger.LogDebug("{0}: GetBindInterface: Selected first user defined interface. {1}", sourceAddr, ipresult); - - if (isExternal) - { - // TODO: remove this after testing. - _logger.LogWarning("{0}: External request received, however, only an internal interface bind found.", sourceAddr); - } - - return ipresult; + return result; } - if (isExternal) + if (isExternal && MatchesExternalInterface(source, out result)) { - // Get the first WAN interface address that isn't a loopback. - var extResult = _interfaceAddresses - .Exclude(_bindExclusions) - .Where(p => !IsInLocalNetwork(p)) - .OrderBy(p => p.Tag); - - if (extResult.Any()) - { - // Does the request originate in one of the interface subnets? - // (For systems with multiple internal network cards, and multiple subnets) - foreach (var intf in extResult) - { - if (!IsInLocalNetwork(intf) && intf.Contains(sourceAddr)) - { - ipresult = FormatIP6String(intf.Address); - _logger.LogDebug("{0}: GetBindInterface: Selected best external on interface on range. {1}", sourceAddr, ipresult); - return ipresult; - } - } - - ipresult = FormatIP6String(extResult.First().Address); - _logger.LogDebug("{0}: GetBindInterface: Selected first external interface. {0}", sourceAddr, ipresult); - return ipresult; - } - - // Have to return something, so return an internal address - - // TODO: remove this after testing. - _logger.LogWarning("{0}: External request received, however, no WAN interface found.", sourceAddr); + return result; } // Get the first LAN interface address that isn't a loopback. - var result = _interfaceAddresses + var interfaces = new NetCollection(_interfaceAddresses .Exclude(_bindExclusions) .Where(p => IsInLocalNetwork(p)) - .OrderBy(p => p.Tag); + .OrderBy(p => p.Tag)); - if (result.Any()) + if (interfaces.Count > 0) { if (haveSource) { // Does the request originate in one of the interface subnets? // (For systems with multiple internal network cards, and multiple subnets) - foreach (var intf in result) + foreach (var intf in interfaces) { - if (intf.Contains(sourceAddr)) + if (intf.Contains(source)) { - ipresult = FormatIP6String(intf.Address); - _logger.LogDebug("{0}: GetBindInterface: Has source, matched best internal interface on range. {1}", sourceAddr, ipresult); - return ipresult; + result = FormatIP6String(intf.Address); + _logger.LogDebug("{0}: GetBindInterface: Has source, matched best internal interface on range. {1}", source, result); + return result; } } } - ipresult = FormatIP6String(result.First().Address); - _logger.LogDebug("{0}: GetBindInterface: Matched first internal interface. {1}", sourceAddr, ipresult); - return ipresult; + result = FormatIP6String(interfaces.First().Address); + _logger.LogDebug("{0}: GetBindInterface: Matched first internal interface. {1}", source, result); + return result; } // There isn't any others, so we'll use the loopback. - ipresult = IsIP6Enabled ? "::" : "127.0.0.1"; - _logger.LogWarning("{0}: GetBindInterface: Loopback return.", sourceAddr, ipresult); - return ipresult; + result = IsIP6Enabled ? "::" : "127.0.0.1"; + _logger.LogWarning("{0}: GetBindInterface: Loopback return.", source, result); + return result; } } @@ -771,16 +642,6 @@ namespace Jellyfin.Networking.Manager } } - private static NetworkManager GetInstance() - { - if (_instance == null) - { - throw new ApplicationException("NetworkManager is not initialised."); - } - - return _instance; - } - private void ConfigurationUpdated(object? sender, EventArgs args) { UpdateSettings((ServerConfiguration)_configurationManager.CommonConfiguration); @@ -944,7 +805,7 @@ namespace Jellyfin.Networking.Manager { lock (_intLock) { - _overrideUrls.Clear(); + _publishedServerUrls.Clear(); } return; @@ -952,7 +813,7 @@ namespace Jellyfin.Networking.Manager lock (_intLock) { - _overrideUrls.Clear(); + _publishedServerUrls.Clear(); foreach (var entry in overrides) { @@ -966,15 +827,15 @@ namespace Jellyfin.Networking.Manager var replacement = parts[1].Trim(); if (string.Equals(parts[0], "remaining", StringComparison.OrdinalIgnoreCase)) { - _overrideUrls[new IPNetAddress(IPAddress.Broadcast)] = replacement; + _publishedServerUrls[new IPNetAddress(IPAddress.Broadcast)] = replacement; } else if (string.Equals(parts[0], "external", StringComparison.OrdinalIgnoreCase)) { - _overrideUrls[new IPNetAddress(IPAddress.Any)] = replacement; + _publishedServerUrls[new IPNetAddress(IPAddress.Any)] = replacement; } else if (TryParseInterface(parts[0], out IPNetAddress address)) { - _overrideUrls[address] = replacement; + _publishedServerUrls[address] = replacement; } else { @@ -1199,5 +1060,179 @@ namespace Jellyfin.Networking.Manager } } } + + /// <summary> + /// Attempts to match the source against a user defined bind interface. + /// </summary> + /// <param name="source">IP source address to use.</param> + /// <param name="isExternal">True if the source is in the external subnet.</param> + /// <param name="isChromeCast">True if the request is for a chromecast device.</param> + /// <param name="bindPreference">The published server url that matches the source address.</param> + /// <param name="port">The resultant port, if one exists.</param> + /// <returns>True if a match is found.</returns> + private bool MatchesPublishedServerUrl(IPObject source, bool isExternal, bool isChromeCast, out string bindPreference, out int? port) + { + bindPreference = string.Empty; + port = null; + + // Check for user override. + foreach (var addr in _publishedServerUrls) + { + // Remaining. Match anything. + if (addr.Key.Equals(IPAddress.Broadcast)) + { + bindPreference = addr.Value; + break; + } + else if ((addr.Key.Equals(IPAddress.Any) || addr.Key.Equals(IPAddress.IPv6Any)) && (isExternal || isChromeCast)) + { + // External. + bindPreference = addr.Value; + break; + } + else if (addr.Key.Contains(source)) + { + // Match ip address. + bindPreference = addr.Value; + break; + } + } + + if (!string.IsNullOrEmpty(bindPreference)) + { + // Has it got a port defined? + var parts = bindPreference.Split(':'); + if (parts.Length > 1) + { + if (int.TryParse(parts[1], out int p)) + { + bindPreference = parts[0]; + port = p; + } + } + + return true; + } + + return false; + } + + /// <summary> + /// Attempts to match the source against a user defined bind interface. + /// </summary> + /// <param name="source">IP source address to use.</param> + /// <param name="isExternal">True if the source is in the external subnet.</param> + /// <param name="result">The result, if a match is found.</param> + /// <returns>True if a match is found.</returns> + private bool MatchesBindInterface(IPObject source, bool isExternal, out string result) + { + result = string.Empty; + var nc = new NetCollection(_bindAddresses.Exclude(_bindExclusions).Where(p => !p.IsLoopback())); + + int count = nc.Count; + if (count == 1 && (_bindAddresses[0].Equals(IPAddress.Any) || _bindAddresses[0].Equals(IPAddress.IPv6Any))) + { + // Ignore IPAny addresses. + count = 0; + } + + if (count != 0) + { + // Check to see if any of the bind interfaces are in the same subnet. + + NetCollection bindResult; + IPAddress? defaultGateway = null; + IPAddress? bindAddress; + + if (isExternal) + { + // Find all external bind addresses. Store the default gateway, but check to see if there is a better match first. + bindResult = new NetCollection(nc + .Where(p => !IsInLocalNetwork(p)) + .OrderBy(p => p.Tag)); + defaultGateway = bindResult.FirstOrDefault()?.Address; + bindAddress = bindResult + .Where(p => p.Contains(source)) + .OrderBy(p => p.Tag) + .FirstOrDefault()?.Address; + } + else + { + // Look for the best internal address. + bindAddress = nc + .Where(p => IsInLocalNetwork(p) && (p.Contains(source) || p.Equals(IPAddress.None))) + .OrderBy(p => p.Tag) + .FirstOrDefault()?.Address; + } + + if (bindAddress != null) + { + result = FormatIP6String(bindAddress); + _logger.LogDebug("{0}: GetBindInterface: Has source, found a match bind interface subnets. {1}", source, result); + return true; + } + + if (isExternal && defaultGateway != null) + { + result = FormatIP6String(defaultGateway); + _logger.LogDebug("{0}: GetBindInterface: Using first user defined external interface. {1}", source, result); + return true; + } + + result = FormatIP6String(nc.First().Address); + _logger.LogDebug("{0}: GetBindInterface: Selected first user defined interface. {1}", source, result); + + if (isExternal) + { + // TODO: remove this after testing. + _logger.LogWarning("{0}: External request received, however, only an internal interface bind found.", source); + } + + return true; + } + + return false; + } + + /// <summary> + /// Attempts to match the source against am external interface. + /// </summary> + /// <param name="source">IP source address to use.</param> + /// <param name="result">The result, if a match is found.</param> + /// <returns>True if a match is found.</returns> + private bool MatchesExternalInterface(IPObject source, out string result) + { + result = string.Empty; + // Get the first WAN interface address that isn't a loopback. + var extResult = new NetCollection(_interfaceAddresses + .Exclude(_bindExclusions) + .Where(p => !IsInLocalNetwork(p)) + .OrderBy(p => p.Tag)); + + if (extResult.Count > 0) + { + // Does the request originate in one of the interface subnets? + // (For systems with multiple internal network cards, and multiple subnets) + foreach (var intf in extResult) + { + if (!IsInLocalNetwork(intf) && intf.Contains(source)) + { + result = FormatIP6String(intf.Address); + _logger.LogDebug("{0}: GetBindInterface: Selected best external on interface on range. {1}", source, result); + return true; + } + } + + result = FormatIP6String(extResult.First().Address); + _logger.LogDebug("{0}: GetBindInterface: Selected first external interface. {0}", source, result); + return true; + } + + // Have to return something, so return an internal address + + // TODO: remove this after testing. + _logger.LogWarning("{0}: External request received, however, no WAN interface found.", source); + return false; + } } } |