/// <summary>
/// Sends a command to the connected server.
/// The return value of this function does not signify command success, only if the command was sent.
/// </summary>
/// <param name="command">The command type to send.</param>
/// <param name="args">The arguments to send.</param>
/// <returns>True if the command was sent; otherwise, false.</returns>
protected bool SendCommand(byte command, params object[] args)
{
try
{
using (TcpPacket packet = new TcpPacket())
{
packet.Write(command);
foreach (object arg in args)
{
if (arg is byte[])
{
packet.Write(( byte[] )arg);
}
else if (arg is string)
{
packet.Write(( string )arg, Encoding.ASCII);
}
else
{
packet.Write(arg.GetType(), arg);
}
}
Socket.Send(packet);
}
return(true);
}
catch
{
return(false);
}
}
/// <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);
}
}
/// <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>
/// 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>
/// 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 );
}
}
