Files
LightlessServer/LightlessSyncServer/LightlessSyncStaticFilesServer/Startup.cs
2025-10-18 19:44:02 -05:00

274 lines
13 KiB
C#

using LightlessSyncShared.Data;
using LightlessSyncShared.Metrics;
using LightlessSyncShared.Services;
using LightlessSyncShared.Utils;
using LightlessSyncStaticFilesServer.Controllers;
using LightlessSyncStaticFilesServer.Services;
using LightlessSyncStaticFilesServer.Utils;
using MessagePack;
using MessagePack.Resolvers;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc.Controllers;
using Microsoft.AspNetCore.Server.Kestrel.Core;
using Microsoft.AspNetCore.SignalR;
using Microsoft.EntityFrameworkCore;
using Microsoft.IdentityModel.Tokens;
using Prometheus;
using StackExchange.Redis.Extensions.Core.Configuration;
using StackExchange.Redis.Extensions.System.Text.Json;
using StackExchange.Redis;
using System.Net;
using System.Text;
using LightlessSyncShared.Utils.Configuration;
namespace LightlessSyncStaticFilesServer;
public class Startup
{
private bool _isMain;
private bool _isDistributionNode;
private readonly ILogger<Startup> _logger;
public Startup(IConfiguration configuration, ILogger<Startup> logger)
{
Configuration = configuration;
_logger = logger;
var lightlessSettings = Configuration.GetRequiredSection("LightlessSync");
_isDistributionNode = lightlessSettings.GetValue(nameof(StaticFilesServerConfiguration.IsDistributionNode), false);
_isMain = string.IsNullOrEmpty(lightlessSettings.GetValue(nameof(StaticFilesServerConfiguration.MainFileServerAddress), string.Empty)) && _isDistributionNode;
}
public IConfiguration Configuration { get; }
public void ConfigureServices(IServiceCollection services)
{
services.AddHttpContextAccessor();
services.AddLogging();
services.Configure<StaticFilesServerConfiguration>(Configuration.GetRequiredSection("LightlessSync"));
services.Configure<LightlessConfigurationBase>(Configuration.GetRequiredSection("LightlessSync"));
services.Configure<KestrelServerOptions>(Configuration.GetSection("Kestrel"));
services.AddSingleton(Configuration);
var lightlessConfig = Configuration.GetRequiredSection("LightlessSync");
// metrics configuration
services.AddSingleton(m => new LightlessMetrics(m.GetService<ILogger<LightlessMetrics>>(), new List<string>
{
MetricsAPI.CounterFileRequests,
MetricsAPI.CounterFileRequestSize
}, new List<string>
{
MetricsAPI.GaugeFilesTotalColdStorage,
MetricsAPI.GaugeFilesTotalSizeColdStorage,
MetricsAPI.GaugeFilesTotalSize,
MetricsAPI.GaugeFilesTotal,
MetricsAPI.GaugeFilesUniquePastDay,
MetricsAPI.GaugeFilesUniquePastDaySize,
MetricsAPI.GaugeFilesUniquePastHour,
MetricsAPI.GaugeFilesUniquePastHourSize,
MetricsAPI.GaugeCurrentDownloads,
MetricsAPI.GaugeDownloadQueue,
MetricsAPI.GaugeDownloadQueueCancelled,
MetricsAPI.GaugeDownloadPriorityQueue,
MetricsAPI.GaugeDownloadPriorityQueueCancelled,
MetricsAPI.GaugeQueueFree,
MetricsAPI.GaugeQueueInactive,
MetricsAPI.GaugeQueueActive,
MetricsAPI.GaugeFilesDownloadingFromCache,
MetricsAPI.GaugeFilesTasksWaitingForDownloadFromCache
}));
// generic services
services.AddSingleton<CachedFileProvider>();
services.AddSingleton<FileStatisticsService>();
services.AddSingleton<RequestFileStreamResultFactory>();
services.AddSingleton<ServerTokenGenerator>();
services.AddSingleton<RequestQueueService>();
services.AddSingleton<CDNDownloadUrlService>();
services.AddSingleton<CDNDownloadsService>();
services.AddHostedService(p => p.GetService<RequestQueueService>());
services.AddHostedService(m => m.GetService<FileStatisticsService>());
services.AddSingleton<IConfigurationService<LightlessConfigurationBase>, LightlessConfigurationServiceClient<LightlessConfigurationBase>>();
services.AddHostedService(p => (LightlessConfigurationServiceClient<LightlessConfigurationBase>)p.GetService<IConfigurationService<LightlessConfigurationBase>>());
// specific services
if (_isMain)
{
services.AddSingleton<IClientReadyMessageService, MainClientReadyMessageService>();
services.AddHostedService<MainFileCleanupService>();
services.AddSingleton<IConfigurationService<StaticFilesServerConfiguration>, LightlessConfigurationServiceServer<StaticFilesServerConfiguration>>();
services.AddSingleton<MainServerShardRegistrationService>();
services.AddHostedService(s => s.GetRequiredService<MainServerShardRegistrationService>());
services.AddDbContextPool<LightlessDbContext>(options =>
{
options.UseNpgsql(Configuration.GetConnectionString("DefaultConnection"), builder =>
{
builder.MigrationsHistoryTable("_efmigrationshistory", "public");
}).UseSnakeCaseNamingConvention();
options.EnableThreadSafetyChecks(false);
}, lightlessConfig.GetValue(nameof(LightlessConfigurationBase.DbContextPoolSize), 1024));
services.AddDbContextFactory<LightlessDbContext>(options =>
{
options.UseNpgsql(Configuration.GetConnectionString("DefaultConnection"), builder =>
{
builder.MigrationsHistoryTable("_efmigrationshistory", "public");
builder.MigrationsAssembly("LightlessSyncShared");
}).UseSnakeCaseNamingConvention();
options.EnableThreadSafetyChecks(false);
});
var signalRServiceBuilder = services.AddSignalR(hubOptions =>
{
hubOptions.MaximumReceiveMessageSize = long.MaxValue;
hubOptions.EnableDetailedErrors = true;
hubOptions.MaximumParallelInvocationsPerClient = 10;
hubOptions.StreamBufferCapacity = 200;
}).AddMessagePackProtocol(opt =>
{
var resolver = CompositeResolver.Create(StandardResolverAllowPrivate.Instance,
BuiltinResolver.Instance,
AttributeFormatterResolver.Instance,
// replace enum resolver
DynamicEnumAsStringResolver.Instance,
DynamicGenericResolver.Instance,
DynamicUnionResolver.Instance,
DynamicObjectResolver.Instance,
PrimitiveObjectResolver.Instance,
// final fallback(last priority)
StandardResolver.Instance);
opt.SerializerOptions = MessagePackSerializerOptions.Standard
.WithCompression(MessagePackCompression.Lz4Block)
.WithResolver(resolver);
});
// configure redis for SignalR
var redisConnection = lightlessConfig.GetValue(nameof(ServerConfiguration.RedisConnectionString), string.Empty);
signalRServiceBuilder.AddStackExchangeRedis(redisConnection, options => { });
var options = ConfigurationOptions.Parse(redisConnection);
var endpoint = options.EndPoints[0];
string address = "";
int port = 0;
if (endpoint is DnsEndPoint dnsEndPoint) { address = dnsEndPoint.Host; port = dnsEndPoint.Port; }
if (endpoint is IPEndPoint ipEndPoint) { address = ipEndPoint.Address.ToString(); port = ipEndPoint.Port; }
var redisConfiguration = new RedisConfiguration()
{
AbortOnConnectFail = true,
KeyPrefix = "",
Hosts = new RedisHost[]
{
new RedisHost(){ Host = address, Port = port },
},
AllowAdmin = true,
ConnectTimeout = options.ConnectTimeout,
Database = 0,
Ssl = false,
Password = options.Password,
ServerEnumerationStrategy = new ServerEnumerationStrategy()
{
Mode = ServerEnumerationStrategy.ModeOptions.All,
TargetRole = ServerEnumerationStrategy.TargetRoleOptions.Any,
UnreachableServerAction = ServerEnumerationStrategy.UnreachableServerActionOptions.Throw,
},
MaxValueLength = 1024,
PoolSize = lightlessConfig.GetValue(nameof(ServerConfiguration.RedisPool), 50),
SyncTimeout = options.SyncTimeout,
};
services.AddStackExchangeRedisExtensions<SystemTextJsonSerializer>(redisConfiguration);
}
else
{
services.AddSingleton<ShardRegistrationService>();
services.AddHostedService(s => s.GetRequiredService<ShardRegistrationService>());
services.AddSingleton<IClientReadyMessageService, ShardClientReadyMessageService>();
services.AddHostedService<ShardFileCleanupService>();
services.AddSingleton<IConfigurationService<StaticFilesServerConfiguration>, LightlessConfigurationServiceClient<StaticFilesServerConfiguration>>();
services.AddHostedService(p => (LightlessConfigurationServiceClient<StaticFilesServerConfiguration>)p.GetService<IConfigurationService<StaticFilesServerConfiguration>>());
}
services.AddMemoryCache();
// controller setup
services.AddControllers().ConfigureApplicationPartManager(a =>
{
a.FeatureProviders.Remove(a.FeatureProviders.OfType<ControllerFeatureProvider>().First());
if (_isMain)
{
a.FeatureProviders.Add(new AllowedControllersFeatureProvider(typeof(LightlessStaticFilesServerConfigurationController),
typeof(CacheController), typeof(RequestController), typeof(ServerFilesController),
typeof(DistributionController), typeof(MainController), typeof(SpeedTestController)));
}
else if (_isDistributionNode)
{
a.FeatureProviders.Add(new AllowedControllersFeatureProvider(typeof(CacheController), typeof(RequestController),
typeof(DistributionController), typeof(ShardServerFilesController), typeof(SpeedTestController)));
}
else
{
a.FeatureProviders.Add(new AllowedControllersFeatureProvider(typeof(CacheController), typeof(ShardServerFilesController), typeof(RequestController), typeof(SpeedTestController)));
}
});
// authentication and authorization
services.AddOptions<JwtBearerOptions>(JwtBearerDefaults.AuthenticationScheme)
.Configure<IConfigurationService<LightlessConfigurationBase>>((o, s) =>
{
o.TokenValidationParameters = new()
{
ValidateIssuer = false,
ValidateLifetime = true,
ValidateAudience = false,
ValidateIssuerSigningKey = true,
IssuerSigningKey = new SymmetricSecurityKey(Encoding.ASCII.GetBytes(s.GetValue<string>(nameof(LightlessConfigurationBase.Jwt))))
};
});
services.AddAuthentication(o =>
{
o.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
o.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
o.DefaultScheme = JwtBearerDefaults.AuthenticationScheme;
}).AddJwtBearer();
services.AddAuthorization(options =>
{
options.AddPolicy("Internal", new AuthorizationPolicyBuilder().RequireClaim(LightlessClaimTypes.Internal, "true").Build());
});
services.AddSingleton<IUserIdProvider, IdBasedUserIdProvider>();
services.AddHealthChecks();
services.AddHttpLogging(e => e = new Microsoft.AspNetCore.HttpLogging.HttpLoggingOptions());
}
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
app.UseHttpLogging();
app.UseRouting();
var config = app.ApplicationServices.GetRequiredService<IConfigurationService<LightlessConfigurationBase>>();
var metricServer = new KestrelMetricServer(config.GetValueOrDefault<int>(nameof(LightlessConfigurationBase.MetricsPort), 4981));
metricServer.Start();
app.UseHttpMetrics();
app.UseAuthentication();
app.UseAuthorization();
app.UseEndpoints(e =>
{
if (_isMain)
{
e.MapHub<LightlessSyncServer.Hubs.LightlessHub>("/dummyhub");
}
e.MapControllers();
e.MapHealthChecks("/health").WithMetadata(new AllowAnonymousAttribute());
});
}
}