/// <summary>
/// Gets a list of all currently active content servers.
/// </summary>
/// <returns>A list of servers on success; otherwise, <c>null</c>.</returns>
public IPEndPoint[] GetContentServerList()
{
TcpPacket packet = base.GetRawServerList(3); // command 3
if (packet == null)
{
return(null);
}
DataStream ds = new DataStream(packet.GetPayload(), true);
ushort numAddrs = ds.ReadUInt16();
IPEndPoint[] serverList = new IPEndPoint[numAddrs];
for (int x = 0; x < numAddrs; ++x)
{
IPAddrPort ipAddr = IPAddrPort.Deserialize(ds.ReadBytes(6));
serverList[x] = ipAddr;
}
return(serverList);
}
/// <summary>
/// Gets the server list for a specific server type.
/// </summary>
/// <param name="type">The server type.</param>
/// <returns>A list of servers on success; otherwise, <c>null</c>.</returns>
public IPEndPoint[] GetServerList(ESteam2ServerType type)
{
TcpPacket packet = this.GetRawServerList(( byte )type);
if (packet == null)
{
return(null);
}
DataStream ds = new DataStream(packet.GetPayload(), true);
ushort numAddrs = ds.ReadUInt16();
IPEndPoint[] serverList = new IPEndPoint[numAddrs];
for (int x = 0; x < numAddrs; ++x)
{
IPAddrPort ipAddr = IPAddrPort.Deserialize(ds.ReadBytes(6));
serverList[x] = ipAddr;
}
return(serverList);
}
/// <summary>
/// Downloads a list of updated FileIDs since the given version.
/// </summary>
/// <param name="oldVersion">The old version to compare to.</param>
/// <returns>A list of FileIDs that have been updated.</returns>
public uint[] DownloadUpdates(uint oldVersion)
{
bool bRet = this.SendCommand(
5, // download updates
this.StorageID,
this.MessageID,
oldVersion
);
uint storId = NetHelpers.EndianSwap(this.Socket.Reader.ReadUInt32());
uint msgId = NetHelpers.EndianSwap(this.Socket.Reader.ReadUInt32());
byte updateState = this.Socket.Reader.ReadByte();
uint numUpdates = NetHelpers.EndianSwap(this.Socket.Reader.ReadUInt32());
if (numUpdates == 0)
{
return(null);
}
uint storId2 = NetHelpers.EndianSwap(this.Socket.Reader.ReadUInt32());
uint msgId2 = NetHelpers.EndianSwap(this.Socket.Reader.ReadUInt32());
TcpPacket packet = this.Socket.ReceivePacket();
DataStream ds = new DataStream(packet.GetPayload());
uint[] fileIdList = new uint[numUpdates];
for (int x = 0; x < numUpdates; ++x)
{
fileIdList[x] = ds.ReadUInt32();
}
this.MessageID++;
return(fileIdList);
}
static ContentServer[] GetServersFromPacket(TcpPacket packet)
{
DataStream ds = new DataStream(packet.GetPayload(), true);
ushort numAddrs = ds.ReadUInt16();
ContentServer[] serverList = new ContentServer[numAddrs];
for (int x = 0; x < numAddrs; ++x)
{
uint weighedLoad = ds.ReadUInt32();
IPAddrPort ipAddr = IPAddrPort.Deserialize(ds.ReadBytes(6));
IPAddrPort ipAddr2 = IPAddrPort.Deserialize(ds.ReadBytes(6));
serverList[x] = new ContentServer()
{
Load = weighedLoad,
PackageServer = ipAddr,
StorageServer = ipAddr2,
};
}
return(serverList);
}
/// <summary>
/// Sends the specified packet on the socket.
/// </summary>
/// <param name="packet">The packet.</param>
public void Send(TcpPacket packet)
{
this.Send(packet.GetData());
}
static ContentServer[] GetServersFromPacket( TcpPacket packet )
{
DataStream ds = new DataStream( packet.GetPayload(), true );
ushort numAddrs = ds.ReadUInt16();
ContentServer[] serverList = new ContentServer[ numAddrs ];
for ( int x = 0 ; x < numAddrs ; ++x )
{
uint weighedLoad = ds.ReadUInt32();
IPAddrPort ipAddr = IPAddrPort.Deserialize( ds.ReadBytes( 6 ) );
IPAddrPort ipAddr2 = IPAddrPort.Deserialize( ds.ReadBytes( 6 ) );
serverList[ x ] = new ContentServer()
{
Load = weighedLoad,
PackageServer = ipAddr,
StorageServer = ipAddr2,
};
}
return serverList;
}
/// <summary>
/// Downloads the specified package file.
/// </summary>
/// <param name="fileName">Name of the file.</param>
/// <returns>A byte array representing the file.</returns>
public byte[] DownloadPackage( string fileName )
{
TcpPacket packet = new TcpPacket();
packet.Write( ( uint )0 ); // unknown, always 0?
packet.Write( ( uint )0 ); // unknown, always 0?
packet.Write( ( uint )fileName.Length );
packet.Write( fileName );
packet.Write( this.CellID );
this.Socket.Send( packet );
// length is sent twice, as two uints
uint len1 = NetHelpers.EndianSwap( this.Socket.Reader.ReadUInt32() );
uint len2 = NetHelpers.EndianSwap( this.Socket.Reader.ReadUInt32() );
byte[] packageData = this.Socket.Reader.ReadBytes( ( int )len1 );
return packageData;
}
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public void Dispose()
{
TcpPacket packet = new TcpPacket();
packet.Write( ( uint )3 );
// exit package mode
this.Socket.Send( packet );
}
/// <summary>
/// Requests the cell ID of the currently connected content server.
/// </summary>
/// <returns>The cell ID of the server.</returns>
public uint GetCellID()
{
if ( !this.HandshakeServer( ( ESteam2ServerType )3 ) )
throw new Steam2Exception( "Package handshake with content server failed" );
TcpPacket packet = new TcpPacket();
packet.Write( ( uint )2 );
try
{
this.Socket.Send( packet );
uint cellId = NetHelpers.EndianSwap( this.Socket.Reader.ReadUInt32() );
return cellId;
}
catch ( Exception ex )
{
throw new Steam2Exception( "Unable to request cell id", ex );
}
}