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using System;
using System.IO;
using System.Linq;
using System.Net;
using System.Threading;
using System.Threading.Tasks;
using Emby.Server.Implementations.Configuration;
using Emby.Server.Implementations.Serialization;
using Jellyfin.Networking.Manager;
using MediaBrowser.Common.Configuration;
using MediaBrowser.Common.Net;
using MediaBrowser.Controller;
using MediaBrowser.Model.System;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Diagnostics.HealthChecks;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Primitives;
namespace Jellyfin.Server.ServerSetupApp;
/// <summary>
/// Creates a fake application pipeline that will only exist for as long as the main app is not started.
/// </summary>
public sealed class SetupServer : IDisposable
{
private readonly Func<INetworkManager?> _networkManagerFactory;
private readonly IApplicationPaths _applicationPaths;
private readonly Func<IServerApplicationHost?> _serverFactory;
private readonly ILoggerFactory _loggerFactory;
private readonly IConfiguration _startupConfiguration;
private readonly ServerConfigurationManager _configurationManager;
private IHost? _startupServer;
private bool _disposed;
/// <summary>
/// Initializes a new instance of the <see cref="SetupServer"/> class.
/// </summary>
/// <param name="networkManagerFactory">The networkmanager.</param>
/// <param name="applicationPaths">The application paths.</param>
/// <param name="serverApplicationHostFactory">The servers application host.</param>
/// <param name="loggerFactory">The logger factory.</param>
/// <param name="startupConfiguration">The startup configuration.</param>
public SetupServer(
Func<INetworkManager?> networkManagerFactory,
IApplicationPaths applicationPaths,
Func<IServerApplicationHost?> serverApplicationHostFactory,
ILoggerFactory loggerFactory,
IConfiguration startupConfiguration)
{
_networkManagerFactory = networkManagerFactory;
_applicationPaths = applicationPaths;
_serverFactory = serverApplicationHostFactory;
_loggerFactory = loggerFactory;
_startupConfiguration = startupConfiguration;
var xmlSerializer = new MyXmlSerializer();
_configurationManager = new ServerConfigurationManager(_applicationPaths, loggerFactory, xmlSerializer);
_configurationManager.RegisterConfiguration<NetworkConfigurationFactory>();
}
/// <summary>
/// Starts the Bind-All Setup aspcore server to provide a reflection on the current core setup.
/// </summary>
/// <returns>A Task.</returns>
public async Task RunAsync()
{
ThrowIfDisposed();
_startupServer = Host.CreateDefaultBuilder()
.UseConsoleLifetime()
.ConfigureServices(serv =>
{
serv.AddHealthChecks()
.AddCheck<SetupHealthcheck>("StartupCheck");
})
.ConfigureWebHostDefaults(webHostBuilder =>
{
webHostBuilder
.UseKestrel((builderContext, options) =>
{
var config = _configurationManager.GetNetworkConfiguration()!;
var knownBindInterfaces = NetworkManager.GetInterfacesCore(_loggerFactory.CreateLogger<SetupServer>(), config.EnableIPv4, config.EnableIPv6);
knownBindInterfaces = NetworkManager.FilterBindSettings(config, knownBindInterfaces.ToList(), config.EnableIPv4, config.EnableIPv6);
var bindInterfaces = NetworkManager.GetAllBindInterfaces(false, _configurationManager, knownBindInterfaces, config.EnableIPv4, config.EnableIPv6);
Extensions.WebHostBuilderExtensions.SetupJellyfinWebServer(
bindInterfaces,
config.InternalHttpPort,
null,
null,
_startupConfiguration,
_applicationPaths,
_loggerFactory.CreateLogger<SetupServer>(),
builderContext,
options);
})
.Configure(app =>
{
app.UseHealthChecks("/health");
app.Map("/startup/logger", loggerRoute =>
{
loggerRoute.Run(async context =>
{
var networkManager = _networkManagerFactory();
if (context.Connection.RemoteIpAddress is null || networkManager is null || !networkManager.IsInLocalNetwork(context.Connection.RemoteIpAddress))
{
context.Response.StatusCode = (int)HttpStatusCode.Unauthorized;
return;
}
var logFilePath = new DirectoryInfo(_applicationPaths.LogDirectoryPath)
.EnumerateFiles()
.OrderBy(f => f.CreationTimeUtc)
.FirstOrDefault()
?.FullName;
if (logFilePath is not null)
{
await context.Response.SendFileAsync(logFilePath, CancellationToken.None).ConfigureAwait(false);
}
});
});
app.Map("/System/Info/Public", systemRoute =>
{
systemRoute.Run(async context =>
{
var jfApplicationHost = _serverFactory();
var retryCounter = 0;
while (jfApplicationHost is null && retryCounter < 5)
{
await Task.Delay(500).ConfigureAwait(false);
jfApplicationHost = _serverFactory();
retryCounter++;
}
if (jfApplicationHost is null)
{
context.Response.StatusCode = (int)HttpStatusCode.ServiceUnavailable;
context.Response.Headers.RetryAfter = new StringValues("5");
return;
}
var sysInfo = new PublicSystemInfo
{
Version = jfApplicationHost.ApplicationVersionString,
ProductName = jfApplicationHost.Name,
Id = jfApplicationHost.SystemId,
ServerName = jfApplicationHost.FriendlyName,
LocalAddress = jfApplicationHost.GetSmartApiUrl(context.Request),
StartupWizardCompleted = false
};
await context.Response.WriteAsJsonAsync(sysInfo).ConfigureAwait(false);
});
});
app.Run((context) =>
{
context.Response.StatusCode = (int)HttpStatusCode.ServiceUnavailable;
context.Response.Headers.RetryAfter = new StringValues("5");
context.Response.Headers.ContentType = new StringValues("text/html");
context.Response.WriteAsync("<p>Jellyfin Server still starting. Please wait.</p>");
var networkManager = _networkManagerFactory();
if (networkManager is not null && context.Connection.RemoteIpAddress is not null && networkManager.IsInLocalNetwork(context.Connection.RemoteIpAddress))
{
context.Response.WriteAsync("<p>You can download the current logfiles <a href='/startup/logger'>here</a>.</p>");
}
return Task.CompletedTask;
});
});
})
.Build();
await _startupServer.StartAsync().ConfigureAwait(false);
}
/// <summary>
/// Stops the Setup server.
/// </summary>
/// <returns>A task. Duh.</returns>
public async Task StopAsync()
{
ThrowIfDisposed();
if (_startupServer is null)
{
throw new InvalidOperationException("Tried to stop a non existing startup server");
}
await _startupServer.StopAsync().ConfigureAwait(false);
}
/// <inheritdoc/>
public void Dispose()
{
if (_disposed)
{
return;
}
_disposed = true;
_startupServer?.Dispose();
}
private void ThrowIfDisposed()
{
ObjectDisposedException.ThrowIf(_disposed, this);
}
private class SetupHealthcheck : IHealthCheck
{
public Task<HealthCheckResult> CheckHealthAsync(HealthCheckContext context, CancellationToken cancellationToken = default)
{
return Task.FromResult(HealthCheckResult.Degraded("Server is still starting up."));
}
}
}
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