internal StorageSession(ContentServerClient cli, uint depotId, uint depotVersion, Credentials credentials)
{
this.DepotID = depotId;
this.DepotVersion = depotVersion;
this.client = cli;
bool bRet = false;
if (credentials == null)
{
bRet = this.SendCommand(
9, // open storage
ConnectionID,
MessageID,
depotId,
depotVersion
);
}
else
{
byte[] serverTgt = credentials.Steam2Ticket.Entries[14].Data; // god help this never change
bRet = this.SendCommand(
10, // open storage with login
ConnectionID,
MessageID,
depotId,
depotVersion,
( ushort )serverTgt.Length,
serverTgt,
NetHelpers.EndianSwap(credentials.SessionToken),
( byte )credentials.AppTicket.Length,
credentials.AppTicket
);
}
// the server sends us back the connection and message ids
// the client probably performs a sanity check?
uint connId = NetHelpers.EndianSwap(this.Socket.Reader.ReadUInt32());
uint msgId = NetHelpers.EndianSwap(this.Socket.Reader.ReadUInt32());
byte hasDepot = this.Socket.Reader.ReadByte();
// the server gives us 0x1 if the depot doesn't exist or requires authentication
if (hasDepot != 0)
{
throw new Steam2Exception("Content server does not have depot, or valid credentials were not given");
}
StorageID = NetHelpers.EndianSwap(this.Socket.Reader.ReadUInt32());
uint storageChecksum = NetHelpers.EndianSwap(this.Socket.Reader.ReadUInt32());
this.ConnectionID++;
}
static string[] GetExcludeList( ContentServerClient.StorageSession session, Steam2Manifest manifest )
{
string[] excludeList = null;
for ( int x = 0 ; x < manifest.Nodes.Count ; ++x )
{
var dirEntry = manifest.Nodes[ x ];
if ( dirEntry.Name == "exclude.lst" &&
dirEntry.FullName.StartsWith( "reslists" + Path.DirectorySeparatorChar ) &&
( dirEntry.Attributes & Steam2Manifest.Node.Attribs.EncryptedFile ) == 0 )
{
string excludeFile = Encoding.UTF8.GetString( session.DownloadFile( dirEntry ) );
if ( Environment.OSVersion.Platform == PlatformID.Win32NT )
excludeFile = excludeFile.Replace( '/', Path.DirectorySeparatorChar );
else
excludeFile = excludeFile.Replace( '\\', Path.DirectorySeparatorChar );
excludeList = excludeFile.Split( new char[] { '\n', '\r' }, StringSplitOptions.RemoveEmptyEntries );
break;
}
}
return excludeList;
}
private static void DownloadSteam2( List<DepotDownloadInfo2> depots )
{
Console.WriteLine("Found depots:");
foreach (var depot in depots)
{
Console.WriteLine("- {0}\t{1} (version {2})", depot.id, depot.contentName, depot.version);
}
Console.Write("Finding content servers...");
foreach( var depot in depots )
{
depot.contentServers = GetStorageServer(depot.id, depot.version, Config.CellID);
if (depot.contentServers == null || depot.contentServers.Length == 0)
{
Console.WriteLine("\nError: Unable to find any Steam2 content servers for depot {0}, version {1}", depot.id, depot.version);
return;
}
}
Console.WriteLine(" Done!");
ContentServerClient csClient = new ContentServerClient();
csClient.ConnectionTimeout = TimeSpan.FromSeconds(STEAM2_CONNECT_TIMEOUT_SECONDS);
ContentServerClient.StorageSession session;
foreach (var depot in depots)
{
session = GetSteam2StorageSession(depot.contentServers, csClient, depot.id, depot.version);
if (session == null)
continue;
Console.Write(String.Format("Downloading manifest for depot {0}...", depot.id));
string txtManifest = Path.Combine(depot.installDir, string.Format("manifest_{0}.txt", depot.id));
Steam2ChecksumData checksums = null;
StringBuilder manifestBuilder = new StringBuilder();
string[] excludeList = null;
depot.cryptKey = CDRManager.GetDepotEncryptionKey(depot.id, depot.version);
depot.manifest = session.DownloadManifest();
Console.WriteLine(" Done!");
if (Config.UsingExclusionList)
excludeList = GetExcludeList(session, depot.manifest);
// Build a list of files that need downloading.
for (int x = 0; x < depot.manifest.Nodes.Count; ++x)
{
var dirEntry = depot.manifest.Nodes[x];
string downloadPath = Path.Combine(depot.installDir, dirEntry.FullName.ToLower());
if (Config.DownloadManifestOnly)
{
if (dirEntry.FileID == -1)
continue;
manifestBuilder.Append(string.Format("{0}\n", dirEntry.FullName));
continue;
}
if (Config.UsingExclusionList && IsFileExcluded(dirEntry.FullName, excludeList))
continue;
if (!TestIsFileIncluded(dirEntry.FullName))
continue;
string path = Path.GetDirectoryName(downloadPath);
if (path != "" && !Directory.Exists(path))
Directory.CreateDirectory(path);
if ( dirEntry.FileID == -1 )
{
if ( !Directory.Exists( downloadPath ) )
{
// this is a directory, so lets just create it
Directory.CreateDirectory( downloadPath );
}
continue;
}
if (checksums == null)
{
// Skip downloading checksums if we're only interested in manifests.
Console.Write(String.Format("Downloading checksums for depot {0}...", depot.id));
checksums = session.DownloadChecksums();
Console.WriteLine(" Done!");
}
FileInfo fi = new FileInfo(downloadPath);
if (fi.Exists)
{
// Similar file, let's check checksums
if (fi.Length == dirEntry.SizeOrCount &&
Util.ValidateSteam2FileChecksums(fi, checksums.GetFileChecksums(dirEntry.FileID)))
{
// checksums OK
float perc = ((float)x / (float)depot.manifest.Nodes.Count) * 100.0f;
Console.WriteLine("{0,6:#00.00}%\t{1}", perc, downloadPath);
continue;
}
// Unlink the current file before we download a new one.
// This will keep symbolic/hard link targets from being overwritten.
fi.Delete();
}
depot.NodesToDownload.Add(x);
}
if (Config.DownloadManifestOnly)
{
File.WriteAllText(txtManifest, manifestBuilder.ToString());
return;
}
}
foreach( var depot in depots )
{
Console.Write("Downloading requested files from depot {0}... ", depot.id);
if ( depot.NodesToDownload.Count == 0 )
Console.WriteLine("none needed.");
else
Console.WriteLine();
session = GetSteam2StorageSession(depot.contentServers, csClient, depot.id, depot.version);
if(session == null)
continue;
for ( int x = 0 ; x < depot.NodesToDownload.Count ; ++x )
{
var dirEntry = depot.manifest.Nodes[ depot.NodesToDownload[ x ] ];
string downloadPath = Path.Combine( depot.installDir, dirEntry.FullName.ToLower() );
float perc = ( ( float )x / ( float )depot.NodesToDownload.Count ) * 100.0f;
Console.WriteLine("{0,6:#00.00}%\t{1}", perc, downloadPath);
using (var fs = new FileStream(downloadPath, FileMode.Create))
{
session.DownloadFileToStream(dirEntry, fs, ContentServerClient.StorageSession.DownloadPriority.High, depot.cryptKey);
}
}
}
csClient.Disconnect();
}
private static ContentServerClient.StorageSession GetSteam2StorageSession(IPEndPoint [] contentServers, ContentServerClient csClient, int depotId, int depotVersion)
{
ContentServerClient.StorageSession session = null;
if (csClient.IsConnected && contentServers.Contains(lastSteam2ContentServer))
{
try
{
session = csClient.OpenStorage( (uint)depotId, (uint)depotVersion, (uint)Config.CellID, null, false );
return session;
}
catch ( Steam2Exception )
{
csClient.Disconnect();
}
}
int tries = 0;
int counterSocket = 0, counterSteam2 = 0;
for (int i = 0; ; i++)
{
IPEndPoint endpoint = contentServers[i % contentServers.Length];
try
{
csClient.Connect( endpoint );
session = csClient.OpenStorage( (uint)depotId, (uint)depotVersion, (uint)Config.CellID, GetSteam2Credentials( (uint)depotId ), true );
lastSteam2ContentServer = endpoint;
break;
}
catch ( SocketException )
{
counterSocket++;
}
catch ( Steam2Exception )
{
csClient.Disconnect();
counterSteam2++;
}
if (((i + 1) % contentServers.Length) == 0)
{
if (++tries > MAX_CONNECT_RETRIES)
{
Console.WriteLine("\nGiving up finding Steam2 content server.");
return null;
}
Console.WriteLine("\nSearching for content servers... (socket error: {0}, steam2 error: {1})", counterSocket, counterSteam2);
counterSocket = 0;
counterSteam2 = 0;
Thread.Sleep(1000);
}
}
return session;
}
private static void DownloadSteam2( int depotId, int depotVersion, string installDir )
{
Console.Write("Finding content servers...");
IPEndPoint[] contentServers = GetStorageServer(depotId, depotVersion, Config.CellID);
if (contentServers == null || contentServers.Length == 0)
{
Console.WriteLine("\nError: Unable to find any Steam2 content servers for depot {0}, version {1}", depotId, depotVersion);
return;
}
Console.WriteLine(" Done!");
Console.Write("Downloading depot manifest...");
string txtManifest = Path.Combine(installDir, "manifest.txt");
ContentServerClient csClient = new ContentServerClient();
ContentServerClient.StorageSession session = GetSteam2StorageSession(contentServers, csClient, depotId, depotVersion);
if(session == null)
return;
Steam2Manifest manifest = null;
Steam2ChecksumData checksums = null;
List<int> NodesToDownload = new List<int>();
StringBuilder manifestBuilder = new StringBuilder();
byte[] cryptKey = CDRManager.GetDepotEncryptionKey( depotId, depotVersion );
string[] excludeList = null;
using ( session )
{
manifest = session.DownloadManifest();
Console.WriteLine( " Done!" );
if(!Config.DownloadManifestOnly)
{
// Skip downloading checksums if we're only interested in manifests.
Console.Write("Downloading depot checksums...");
checksums = session.DownloadChecksums();
Console.WriteLine(" Done!");
}
if ( Config.UsingExclusionList )
excludeList = GetExcludeList( session, manifest );
}
csClient.Disconnect();
if(!Config.DownloadManifestOnly)
Console.WriteLine("Building list of files to download and checking existing files...");
// Build a list of files that need downloading.
for ( int x = 0 ; x < manifest.Nodes.Count ; ++x )
{
var dirEntry = manifest.Nodes[ x ];
string downloadPath = Path.Combine( installDir, dirEntry.FullName.ToLower() );
if ( Config.DownloadManifestOnly )
{
if ( dirEntry.FileID == -1 )
continue;
manifestBuilder.Append( string.Format( "{0}\n", dirEntry.FullName ) );
continue;
}
if (Config.UsingExclusionList && IsFileExcluded(dirEntry.FullName, excludeList))
continue;
if (!TestIsFileIncluded(dirEntry.FullName))
continue;
string path = Path.GetDirectoryName(downloadPath);
if (!Directory.Exists(path))
Directory.CreateDirectory(path);
if ( dirEntry.FileID == -1 )
{
if ( !Directory.Exists( downloadPath ) )
{
// this is a directory, so lets just create it
Directory.CreateDirectory( downloadPath );
}
continue;
}
FileInfo fi = new FileInfo( downloadPath );
if (fi.Exists)
{
float perc = ( ( float )x / ( float )manifest.Nodes.Count ) * 100.0f;
Console.WriteLine("{0,6:#00.00}%\t{1}", perc, downloadPath);
// Similar file, let's check checksums
if(fi.Length == dirEntry.SizeOrCount &&
Util.ValidateFileChecksums(fi, checksums.GetFileChecksums(dirEntry.FileID)))
{
// checksums OK
continue;
}
// Unlink the current file before we download a new one.
// This will keep symbolic/hard link targets from being overwritten.
fi.Delete();
}
NodesToDownload.Add(x);
}
if ( Config.DownloadManifestOnly )
{
File.WriteAllText( txtManifest, manifestBuilder.ToString() );
return;
}
session = GetSteam2StorageSession(contentServers, csClient, depotId, depotVersion);
if(session == null)
return;
using ( session )
{
Console.WriteLine("Downloading selected files.");
for ( int x = 0 ; x < NodesToDownload.Count ; ++x )
{
var dirEntry = manifest.Nodes[ NodesToDownload[ x ] ];
string downloadPath = Path.Combine( installDir, dirEntry.FullName.ToLower() );
float perc = ( ( float )x / ( float )NodesToDownload.Count ) * 100.0f;
Console.WriteLine("{0,6:#00.00}%\t{1}", perc, downloadPath);
var file = session.DownloadFile( dirEntry, ContentServerClient.StorageSession.DownloadPriority.High, cryptKey );
File.WriteAllBytes( downloadPath, file );
}
}
csClient.Disconnect();
}
internal PackageSession( ContentServerClient cli, uint cellId )
{
this.client = cli;
this.CellID = cellId;
}
internal StorageSession( ContentServerClient cli, uint depotId, uint depotVersion, Credentials credentials )
{
this.DepotID = depotId;
this.DepotVersion = depotVersion;
this.client = cli;
bool bRet = false;
if ( credentials == null )
{
bRet = this.SendCommand(
9, // open storage
ConnectionID,
MessageID,
depotId,
depotVersion
);
}
else
{
byte[] serverTgt = credentials.Steam2Ticket.Entries[ 14 ].Data; // god help this never change
bRet = this.SendCommand(
10, // open storage with login
ConnectionID,
MessageID,
depotId,
depotVersion,
( ushort )serverTgt.Length,
serverTgt,
NetHelpers.EndianSwap( credentials.SessionToken ),
( byte )credentials.AppTicket.Length,
credentials.AppTicket
);
}
// the server sends us back the connection and message ids
// the client probably performs a sanity check?
uint connId = NetHelpers.EndianSwap( this.Socket.Reader.ReadUInt32() );
uint msgId = NetHelpers.EndianSwap( this.Socket.Reader.ReadUInt32() );
byte hasDepot = this.Socket.Reader.ReadByte();
// the server gives us 0x1 if the depot doesn't exist or requires authentication
if ( hasDepot != 0 )
throw new Steam2Exception( "Content server does not have depot, or valid credentials were not given" );
StorageID = NetHelpers.EndianSwap( this.Socket.Reader.ReadUInt32() );
uint storageChecksum = NetHelpers.EndianSwap( this.Socket.Reader.ReadUInt32() );
this.ConnectionID++;
}
internal PackageSession(ContentServerClient cli, uint cellId)
{
this.client = cli;
this.CellID = cellId;
}
