Merge pull request #286 from SteamRE/sk-2.4.0

Update to SteamKit2 2.4.0, net6.0

.github/workflows/build.yml

@@ -24,10 +24,15 @@ jobs:
         configuration: [Release, Debug]
     steps:
       - uses: actions/checkout@v2
+
       - name: Setup .NET Core
         uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: '6.0.x'
+
       - name: Build
         run: dotnet publish -c ${{ matrix.configuration }} -o artifacts
+
       - name: Upload artifact
         uses: actions/upload-artifact@v2
         if: matrix.configuration == 'Release'

DepotDownloader/CDNClientPool.cs

@@ -1,11 +1,10 @@
-using System;
+using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Linq;
-using System.Net;
 using System.Threading;
 using System.Threading.Tasks;
-using SteamKit2;
+using SteamKit2.CDN;
 
 namespace DepotDownloader
 {
@@ -18,11 +17,11 @@ namespace DepotDownloader
 
         private readonly Steam3Session steamSession;
         private readonly uint appId;
-        public CDNClient CDNClient { get; }
-        public CDNClient.Server ProxyServer { get; private set; }
+        public Client CDNClient { get; }
+        public Server ProxyServer { get; private set; }
 
-        private readonly ConcurrentStack<CDNClient.Server> activeConnectionPool;
-        private readonly BlockingCollection<CDNClient.Server> availableServerEndpoints;
+        private readonly ConcurrentStack<Server> activeConnectionPool;
+        private readonly BlockingCollection<Server> availableServerEndpoints;
 
         private readonly AutoResetEvent populatePoolEvent;
         private readonly Task monitorTask;
@@ -33,10 +32,10 @@ namespace DepotDownloader
         {
             this.steamSession = steamSession;
             this.appId = appId;
-            CDNClient = new CDNClient(steamSession.steamClient);
+            CDNClient = new Client(steamSession.steamClient);
 
-            activeConnectionPool = new ConcurrentStack<CDNClient.Server>();
-            availableServerEndpoints = new BlockingCollection<CDNClient.Server>();
+            activeConnectionPool = new ConcurrentStack<Server>();
+            availableServerEndpoints = new BlockingCollection<Server>();
 
             populatePoolEvent = new AutoResetEvent(true);
             shutdownToken = new CancellationTokenSource();
@@ -50,32 +49,20 @@ namespace DepotDownloader
             monitorTask.Wait();
         }
 
-        private async Task<IReadOnlyCollection<CDNClient.Server>> FetchBootstrapServerListAsync()
+        private async Task<IReadOnlyCollection<Server>> FetchBootstrapServerListAsync()
         {
-            var backoffDelay = 0;
-
-            while (!shutdownToken.IsCancellationRequested)
+            try
             {
-                try
+                var cdnServers = await this.steamSession.steamContent.GetServersForSteamPipe();
+                if (cdnServers != null)
                 {
-                    var cdnServers = await ContentServerDirectoryService.LoadAsync(this.steamSession.steamClient.Configuration, ContentDownloader.Config.CellID, shutdownToken.Token);
-                    if (cdnServers != null)
-                    {
-                        return cdnServers;
-                    }
-                }
-                catch (Exception ex)
-                {
-                    Console.WriteLine("Failed to retrieve content server list: {0}", ex.Message);
-
-                    if (ex is SteamKitWebRequestException e && e.StatusCode == (HttpStatusCode)429)
-                    {
-                        // If we're being throttled, add a delay to the next request
-                        backoffDelay = Math.Min(5, ++backoffDelay);
-                        await Task.Delay(TimeSpan.FromSeconds(backoffDelay));
-                    }
+                    return cdnServers;
                 }
             }
+            catch (Exception ex)
+            {
+                Console.WriteLine("Failed to retrieve content server list: {0}", ex.Message);
+            }
 
             return null;
         }
@@ -104,7 +91,7 @@ namespace DepotDownloader
                     var weightedCdnServers = servers
                         .Where(server =>
                         {
-                            var isEligibleForApp = server.AllowedAppIds == null || server.AllowedAppIds.Contains(appId);
+                            var isEligibleForApp = server.AllowedAppIds.Length == 0 || server.AllowedAppIds.Contains(appId);
                             return isEligibleForApp && (server.Type == "SteamCache" || server.Type == "CDN");
                         })
                         .Select(server =>
@@ -133,7 +120,7 @@ namespace DepotDownloader
             }
         }
 
-        private CDNClient.Server BuildConnection(CancellationToken token)
+        private Server BuildConnection(CancellationToken token)
         {
             if (availableServerEndpoints.Count < ServerEndpointMinimumSize)
             {
@@ -143,7 +130,7 @@ namespace DepotDownloader
             return availableServerEndpoints.Take(token);
         }
 
-        public CDNClient.Server GetConnection(CancellationToken token)
+        public Server GetConnection(CancellationToken token)
         {
             if (!activeConnectionPool.TryPop(out var connection))
             {
@@ -153,7 +140,7 @@ namespace DepotDownloader
             return connection;
         }
 
-        public async Task<string> AuthenticateConnection(uint appId, uint depotId, CDNClient.Server server)
+        public async Task<string> AuthenticateConnection(uint appId, uint depotId, Server server)
         {
             var host = steamSession.ResolveCDNTopLevelHost(server.Host);
             var cdnKey = $"{depotId:D}:{host}";
@@ -169,14 +156,14 @@ namespace DepotDownloader
             throw new Exception($"Failed to retrieve CDN token for server {server.Host} depot {depotId}");
         }
 
-        public void ReturnConnection(CDNClient.Server server)
+        public void ReturnConnection(Server server)
         {
             if (server == null) return;
 
             activeConnectionPool.Push(server);
         }
 
-        public void ReturnBrokenConnection(CDNClient.Server server)
+        public void ReturnBrokenConnection(Server server)
         {
             if (server == null) return;
 

DepotDownloader/ContentDownloader.cs

@@ -4,10 +4,10 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Net;
-using System.Runtime.InteropServices;
 using System.Threading;
 using System.Threading.Tasks;
 using SteamKit2;
+using SteamKit2.CDN;
 
 namespace DepotDownloader
 {
@@ -831,15 +831,15 @@ namespace DepotDownloader
                     {
                         cts.Token.ThrowIfCancellationRequested();
 
-                        CDNClient.Server connection = null;
+                        Server connection = null;
 
                         try
                         {
                             connection = cdnPool.GetConnection(cts.Token);
 
                             DebugLog.WriteLine("ContentDownloader", "Downloading manifest {0} from {1} with {2}", depot.manifestId, connection, cdnPool.ProxyServer != null ? cdnPool.ProxyServer : "no proxy");
-                            depotManifest = await cdnPool.CDNClient.DownloadManifestAsync(depot.id, depot.manifestId,
-                                connection, null, depot.depotKey, proxyServer: cdnPool.ProxyServer).ConfigureAwait(false);
+                            depotManifest = await cdnPool.CDNClient.DownloadManifestAsync(depot.id, depot.manifestId, manifestRequestCode: 0,
+                                connection, depot.depotKey, cdnPool.ProxyServer).ConfigureAwait(false);
 
                             cdnPool.ReturnConnection(connection);
                         }
@@ -1223,13 +1223,13 @@ namespace DepotDownloader
             data.CompressedLength = chunk.CompressedLength;
             data.UncompressedLength = chunk.UncompressedLength;
 
-            CDNClient.DepotChunk chunkData = null;
+            DepotChunk chunkData = null;
 
             do
             {
                 cts.Token.ThrowIfCancellationRequested();
 
-                CDNClient.Server connection = null;
+                Server connection = null;
 
                 try
                 {
@@ -1237,7 +1237,7 @@ namespace DepotDownloader
 
                     DebugLog.WriteLine("ContentDownloader", "Downloading chunk {0} from {1} with {2}", chunkID, connection, cdnPool.ProxyServer != null ? cdnPool.ProxyServer : "no proxy");
                     chunkData = await cdnPool.CDNClient.DownloadDepotChunkAsync(depot.id, data,
-                        connection, null, depot.depotKey, proxyServer: cdnPool.ProxyServer).ConfigureAwait(false);
+                        connection, depot.depotKey, cdnPool.ProxyServer).ConfigureAwait(false);
 
                     cdnPool.ReturnConnection(connection);
                 }

DepotDownloader/DepotDownloader.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net5.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild>
     <RollForward>LatestMajor</RollForward>
     <Version>2.4.5</Version>
@@ -12,6 +12,6 @@
 
   <ItemGroup>
     <PackageReference Include="protobuf-net" Version="3.0.101" />
-    <PackageReference Include="SteamKit2" Version="2.4.0-Alpha.3" />
+    <PackageReference Include="SteamKit2" Version="2.4.0" />
   </ItemGroup>
 </Project>

DepotDownloader/Steam3Session.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
@@ -40,6 +40,7 @@ namespace DepotDownloader
 
         public SteamClient steamClient;
         public SteamUser steamUser;
+        public SteamContent steamContent;
         readonly SteamApps steamApps;
         readonly SteamCloud steamCloud;
         readonly SteamUnifiedMessages.UnifiedService<IPublishedFile> steamPublishedFile;
@@ -101,6 +102,7 @@ namespace DepotDownloader
             this.steamCloud = this.steamClient.GetHandler<SteamCloud>();
             var steamUnifiedMessages = this.steamClient.GetHandler<SteamUnifiedMessages>();
             this.steamPublishedFile = steamUnifiedMessages.CreateService<IPublishedFile>();
+            this.steamContent = this.steamClient.GetHandler<SteamContent>();
 
             this.callbacks = new CallbackManager(this.steamClient);
 

README.md

@@ -1,7 +1,7 @@
 DepotDownloader
 ===============
 
-Steam depot downloader utilizing the SteamKit2 library. Supports .NET 5.0
+Steam depot downloader utilizing the SteamKit2 library. Supports .NET 6.0
 
 ### Downloading one or all depots for an app
 ```