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-rw-r--r--src/Jellyfin.Networking/AutoDiscoveryHost.cs129
-rw-r--r--src/Jellyfin.Networking/Udp/UdpServer.cs136
-rw-r--r--src/Jellyfin.Networking/UdpServerEntryPoint.cs143
3 files changed, 129 insertions, 279 deletions
diff --git a/src/Jellyfin.Networking/AutoDiscoveryHost.cs b/src/Jellyfin.Networking/AutoDiscoveryHost.cs
new file mode 100644
index 000000000..5624c4ed1
--- /dev/null
+++ b/src/Jellyfin.Networking/AutoDiscoveryHost.cs
@@ -0,0 +1,129 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Net.Sockets;
+using System.Text;
+using System.Text.Json;
+using System.Threading;
+using System.Threading.Tasks;
+using MediaBrowser.Common.Configuration;
+using MediaBrowser.Common.Net;
+using MediaBrowser.Controller;
+using MediaBrowser.Model.ApiClient;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+
+namespace Jellyfin.Networking;
+
+/// <summary>
+/// <see cref="BackgroundService"/> responsible for responding to auto-discovery messages.
+/// </summary>
+public sealed class AutoDiscoveryHost : BackgroundService
+{
+ /// <summary>
+ /// The port to listen on for auto-discovery messages.
+ /// </summary>
+ private const int PortNumber = 7359;
+
+ private readonly ILogger<AutoDiscoveryHost> _logger;
+ private readonly IServerApplicationHost _appHost;
+ private readonly IConfigurationManager _configurationManager;
+ private readonly INetworkManager _networkManager;
+
+ /// <summary>
+ /// Initializes a new instance of the <see cref="AutoDiscoveryHost" /> class.
+ /// </summary>
+ /// <param name="logger">The <see cref="ILogger{AutoDiscoveryHost}"/>.</param>
+ /// <param name="appHost">The <see cref="IServerApplicationHost"/>.</param>
+ /// <param name="configurationManager">The <see cref="IConfigurationManager"/>.</param>
+ /// <param name="networkManager">The <see cref="INetworkManager"/>.</param>
+ public AutoDiscoveryHost(
+ ILogger<AutoDiscoveryHost> logger,
+ IServerApplicationHost appHost,
+ IConfigurationManager configurationManager,
+ INetworkManager networkManager)
+ {
+ _logger = logger;
+ _appHost = appHost;
+ _configurationManager = configurationManager;
+ _networkManager = networkManager;
+ }
+
+ /// <inheritdoc />
+ protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+ {
+ var networkConfig = _configurationManager.GetNetworkConfiguration();
+ if (!networkConfig.AutoDiscovery)
+ {
+ return;
+ }
+
+ var udpServers = new List<Task>();
+ // Linux needs to bind to the broadcast addresses to receive broadcast traffic
+ if (OperatingSystem.IsLinux() && networkConfig.EnableIPv4)
+ {
+ udpServers.Add(ListenForAutoDiscoveryMessage(IPAddress.Broadcast, stoppingToken));
+ }
+
+ udpServers.AddRange(_networkManager.GetInternalBindAddresses()
+ .Select(intf => ListenForAutoDiscoveryMessage(
+ OperatingSystem.IsLinux() && intf.AddressFamily == AddressFamily.InterNetwork
+ ? NetworkUtils.GetBroadcastAddress(intf.Subnet)
+ : intf.Address,
+ stoppingToken)));
+
+ await Task.WhenAll(udpServers).ConfigureAwait(false);
+ }
+
+ private async Task ListenForAutoDiscoveryMessage(IPAddress address, CancellationToken cancellationToken)
+ {
+ using var udpClient = new UdpClient(new IPEndPoint(address, PortNumber));
+ udpClient.MulticastLoopback = false;
+
+ while (!cancellationToken.IsCancellationRequested)
+ {
+ try
+ {
+ var result = await udpClient.ReceiveAsync(cancellationToken).ConfigureAwait(false);
+ var text = Encoding.UTF8.GetString(result.Buffer);
+ if (text.Contains("who is JellyfinServer?", StringComparison.OrdinalIgnoreCase))
+ {
+ await RespondToV2Message(udpClient, result.RemoteEndPoint, cancellationToken).ConfigureAwait(false);
+ }
+ }
+ catch (SocketException ex)
+ {
+ _logger.LogError(ex, "Failed to receive data from socket");
+ }
+ catch (OperationCanceledException)
+ {
+ _logger.LogDebug("Broadcast socket operation cancelled");
+ }
+ }
+ }
+
+ private async Task RespondToV2Message(UdpClient udpClient, IPEndPoint endpoint, CancellationToken cancellationToken)
+ {
+ var localUrl = _appHost.GetSmartApiUrl(endpoint.Address);
+ if (string.IsNullOrEmpty(localUrl))
+ {
+ _logger.LogWarning("Unable to respond to server discovery request because the local ip address could not be determined.");
+ return;
+ }
+
+ var response = new ServerDiscoveryInfo(localUrl, _appHost.SystemId, _appHost.FriendlyName);
+
+ try
+ {
+ _logger.LogDebug("Sending AutoDiscovery response");
+ await udpClient
+ .SendAsync(JsonSerializer.SerializeToUtf8Bytes(response).AsMemory(), endpoint, cancellationToken)
+ .ConfigureAwait(false);
+ }
+ catch (SocketException ex)
+ {
+ _logger.LogError(ex, "Error sending response message");
+ }
+ }
+}
diff --git a/src/Jellyfin.Networking/Udp/UdpServer.cs b/src/Jellyfin.Networking/Udp/UdpServer.cs
deleted file mode 100644
index b130a5a5f..000000000
--- a/src/Jellyfin.Networking/Udp/UdpServer.cs
+++ /dev/null
@@ -1,136 +0,0 @@
-using System;
-using System.Net;
-using System.Net.Sockets;
-using System.Text;
-using System.Text.Json;
-using System.Threading;
-using System.Threading.Tasks;
-using MediaBrowser.Controller;
-using MediaBrowser.Model.ApiClient;
-using Microsoft.Extensions.Configuration;
-using Microsoft.Extensions.Logging;
-using static MediaBrowser.Controller.Extensions.ConfigurationExtensions;
-
-namespace Jellyfin.Networking.Udp;
-
-/// <summary>
-/// Provides a Udp Server.
-/// </summary>
-public sealed class UdpServer : IDisposable
-{
- /// <summary>
- /// The _logger.
- /// </summary>
- private readonly ILogger _logger;
- private readonly IServerApplicationHost _appHost;
- private readonly IConfiguration _config;
-
- private readonly byte[] _receiveBuffer = new byte[8192];
-
- private readonly Socket _udpSocket;
- private readonly IPEndPoint _endpoint;
- private bool _disposed;
-
- /// <summary>
- /// Initializes a new instance of the <see cref="UdpServer" /> class.
- /// </summary>
- /// <param name="logger">The logger.</param>
- /// <param name="appHost">The application host.</param>
- /// <param name="configuration">The configuration manager.</param>
- /// <param name="bindAddress"> The bind address.</param>
- /// <param name="port">The port.</param>
- public UdpServer(
- ILogger logger,
- IServerApplicationHost appHost,
- IConfiguration configuration,
- IPAddress bindAddress,
- int port)
- {
- _logger = logger;
- _appHost = appHost;
- _config = configuration;
-
- _endpoint = new IPEndPoint(bindAddress, port);
-
- _udpSocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp)
- {
- MulticastLoopback = false,
- };
- _udpSocket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
- }
-
- private async Task RespondToV2Message(EndPoint endpoint, CancellationToken cancellationToken)
- {
- string? localUrl = _config[AddressOverrideKey];
- if (string.IsNullOrEmpty(localUrl))
- {
- localUrl = _appHost.GetSmartApiUrl(((IPEndPoint)endpoint).Address);
- }
-
- if (string.IsNullOrEmpty(localUrl))
- {
- _logger.LogWarning("Unable to respond to server discovery request because the local ip address could not be determined.");
- return;
- }
-
- var response = new ServerDiscoveryInfo(localUrl, _appHost.SystemId, _appHost.FriendlyName);
-
- try
- {
- _logger.LogDebug("Sending AutoDiscovery response");
- await _udpSocket.SendToAsync(JsonSerializer.SerializeToUtf8Bytes(response), SocketFlags.None, endpoint, cancellationToken).ConfigureAwait(false);
- }
- catch (SocketException ex)
- {
- _logger.LogError(ex, "Error sending response message");
- }
- }
-
- /// <summary>
- /// Starts the specified port.
- /// </summary>
- /// <param name="cancellationToken">The cancellation token to cancel operation.</param>
- public void Start(CancellationToken cancellationToken)
- {
- _udpSocket.Bind(_endpoint);
-
- _ = Task.Run(async () => await BeginReceiveAsync(cancellationToken).ConfigureAwait(false), cancellationToken).ConfigureAwait(false);
- }
-
- private async Task BeginReceiveAsync(CancellationToken cancellationToken)
- {
- while (!cancellationToken.IsCancellationRequested)
- {
- try
- {
- var endpoint = (EndPoint)new IPEndPoint(IPAddress.Any, 0);
- var result = await _udpSocket.ReceiveFromAsync(_receiveBuffer, endpoint, cancellationToken).ConfigureAwait(false);
- var text = Encoding.UTF8.GetString(_receiveBuffer, 0, result.ReceivedBytes);
- if (text.Contains("who is JellyfinServer?", StringComparison.OrdinalIgnoreCase))
- {
- await RespondToV2Message(result.RemoteEndPoint, cancellationToken).ConfigureAwait(false);
- }
- }
- catch (SocketException ex)
- {
- _logger.LogError(ex, "Failed to receive data from socket");
- }
- catch (OperationCanceledException)
- {
- _logger.LogDebug("Broadcast socket operation cancelled");
- }
- }
- }
-
- /// <inheritdoc />
- public void Dispose()
- {
- if (_disposed)
- {
- return;
- }
-
- _udpSocket.Dispose();
- _disposed = true;
- }
-}
diff --git a/src/Jellyfin.Networking/UdpServerEntryPoint.cs b/src/Jellyfin.Networking/UdpServerEntryPoint.cs
deleted file mode 100644
index 61180c3c0..000000000
--- a/src/Jellyfin.Networking/UdpServerEntryPoint.cs
+++ /dev/null
@@ -1,143 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Net;
-using System.Net.Sockets;
-using System.Threading;
-using System.Threading.Tasks;
-using Jellyfin.Networking.Udp;
-using MediaBrowser.Common.Net;
-using MediaBrowser.Controller;
-using MediaBrowser.Controller.Plugins;
-using Microsoft.Extensions.Configuration;
-using Microsoft.Extensions.Logging;
-using IConfigurationManager = MediaBrowser.Common.Configuration.IConfigurationManager;
-
-namespace Jellyfin.Networking;
-
-/// <summary>
-/// Class responsible for registering all UDP broadcast endpoints and their handlers.
-/// </summary>
-public sealed class UdpServerEntryPoint : IServerEntryPoint
-{
- /// <summary>
- /// The port of the UDP server.
- /// </summary>
- public const int PortNumber = 7359;
-
- /// <summary>
- /// The logger.
- /// </summary>
- private readonly ILogger<UdpServerEntryPoint> _logger;
- private readonly IServerApplicationHost _appHost;
- private readonly IConfiguration _config;
- private readonly IConfigurationManager _configurationManager;
- private readonly INetworkManager _networkManager;
-
- /// <summary>
- /// The UDP server.
- /// </summary>
- private readonly List<UdpServer> _udpServers;
- private readonly CancellationTokenSource _cancellationTokenSource = new CancellationTokenSource();
- private bool _disposed;
-
- /// <summary>
- /// Initializes a new instance of the <see cref="UdpServerEntryPoint" /> class.
- /// </summary>
- /// <param name="logger">Instance of the <see cref="ILogger{UdpServerEntryPoint}"/> interface.</param>
- /// <param name="appHost">Instance of the <see cref="IServerApplicationHost"/> interface.</param>
- /// <param name="configuration">Instance of the <see cref="IConfiguration"/> interface.</param>
- /// <param name="configurationManager">Instance of the <see cref="IConfigurationManager"/> interface.</param>
- /// <param name="networkManager">Instance of the <see cref="INetworkManager"/> interface.</param>
- public UdpServerEntryPoint(
- ILogger<UdpServerEntryPoint> logger,
- IServerApplicationHost appHost,
- IConfiguration configuration,
- IConfigurationManager configurationManager,
- INetworkManager networkManager)
- {
- _logger = logger;
- _appHost = appHost;
- _config = configuration;
- _configurationManager = configurationManager;
- _networkManager = networkManager;
- _udpServers = new List<UdpServer>();
- }
-
- /// <inheritdoc />
- public Task RunAsync()
- {
- ObjectDisposedException.ThrowIf(_disposed, this);
-
- if (!_configurationManager.GetNetworkConfiguration().AutoDiscovery)
- {
- return Task.CompletedTask;
- }
-
- try
- {
- // Linux needs to bind to the broadcast addresses to get broadcast traffic
- // Windows receives broadcast fine when binding to just the interface, it is unable to bind to broadcast addresses
- if (OperatingSystem.IsLinux())
- {
- // Add global broadcast listener
- var server = new UdpServer(_logger, _appHost, _config, IPAddress.Broadcast, PortNumber);
- server.Start(_cancellationTokenSource.Token);
- _udpServers.Add(server);
-
- // Add bind address specific broadcast listeners
- // IPv6 is currently unsupported
- var validInterfaces = _networkManager.GetInternalBindAddresses().Where(i => i.AddressFamily == AddressFamily.InterNetwork);
- foreach (var intf in validInterfaces)
- {
- var broadcastAddress = NetworkUtils.GetBroadcastAddress(intf.Subnet);
- _logger.LogDebug("Binding UDP server to {Address} on port {PortNumber}", broadcastAddress, PortNumber);
-
- server = new UdpServer(_logger, _appHost, _config, broadcastAddress, PortNumber);
- server.Start(_cancellationTokenSource.Token);
- _udpServers.Add(server);
- }
- }
- else
- {
- // Add bind address specific broadcast listeners
- // IPv6 is currently unsupported
- var validInterfaces = _networkManager.GetInternalBindAddresses().Where(i => i.AddressFamily == AddressFamily.InterNetwork);
- foreach (var intf in validInterfaces)
- {
- var intfAddress = intf.Address;
- _logger.LogDebug("Binding UDP server to {Address} on port {PortNumber}", intfAddress, PortNumber);
-
- var server = new UdpServer(_logger, _appHost, _config, intfAddress, PortNumber);
- server.Start(_cancellationTokenSource.Token);
- _udpServers.Add(server);
- }
- }
- }
- catch (SocketException ex)
- {
- _logger.LogWarning(ex, "Unable to start AutoDiscovery listener on UDP port {PortNumber}", PortNumber);
- }
-
- return Task.CompletedTask;
- }
-
- /// <inheritdoc />
- public void Dispose()
- {
- if (_disposed)
- {
- return;
- }
-
- _cancellationTokenSource.Cancel();
- _cancellationTokenSource.Dispose();
- foreach (var server in _udpServers)
- {
- server.Dispose();
- }
-
- _udpServers.Clear();
- _disposed = true;
- }
-}
generated by cgit v1.2.3 (git 2.46.0) at 2025-12-06 15:28:09 +0000