private void SendAsync( )
{
TcpClient client = new TcpClient( Peer.EndPoint.AddressFamily );
try
{
client.SendTimeout = 30;
client.Connect( Peer.EndPoint );
using ( BinaryReader NetworkInStream = new BinaryReader( client.GetStream( ) ) )
using ( BinaryWriter NetworkOutStream = new BinaryWriter( client.GetStream( ) ) )
{
bool sendPeers = Peer.ShouldSendPeers;
var header = new Header( sendPeers );
NetworkOutStream.Write( header.ToString( ) );
NetworkOutStream.Flush( );
// Update the statistics.
Peer.RegisterEvent( PeerStatistics.EventType.SentInfo );
if ( sendPeers )
{
log.InfoFormat( "Sent {0} peers to {1}", PeerList.Peers.Count, Peer );
Peer.RegisterEvent( PeerStatistics.EventType.SentPeerList );
}
}
}
catch ( SocketException e ) { log.Info( "Error during outgoing who's-there: " + e ); }
catch ( IOException e ) { log.Info( "Error during outgoing who's-there: " + e ); }
}
public IncomingTransfer( Header header, TcpClient client, BinaryReader netInStream, BinaryWriter netOutStream )
{
this.Header = header;
this.TcpClient = client;
this.NetworkInStream = netInStream;
this.NetworkOutStream = netOutStream;
this.FileName = header.Transfer.FileName;
this.FileSize = header.Transfer.FileSizeBytes;
this.Sender = PeerList.GetPeerForAddress( ( (IPEndPoint) client.Client.RemoteEndPoint ).Address );
// Ask the user if they want to receive this file.
TransferNotificationForm.CreateForTransfer( this );
// Wait for the user's response. (otherwise we dispose the streams)
userResponseReceived.WaitOne( );
try
{
if ( Accepted )
{
NetworkOutStream.Write( true );
DoTransfer( );
}
else
NetworkOutStream.Write( false );
}
catch ( IOException )
{
SetState( State.FAILED );
return;
}
}
private static void ProcessHeader( IPAddress sender, Header header )
{
var peer = new Peer
{
Name = header.Sender.Username,
EndPoint = new IPEndPoint( sender, header.Sender.ListenPort )
};
PeerList.AddOrUpdate( peer );
// Did they send their peer list, too?
if ( header.Peers != null && header.Peers.Count > 0 )
{
PeerList.AddOrUpdate( header.Peers );
peer.RegisterEvent(PeerStatistics.EventType.ReceivedPeerList);
log.InfoFormat( "{0} peers received from {1} via peer exchange.", header.Peers.Count, peer );
}
}
private void SendInvitation( )
{
log.InfoFormat( "Outgoing file transfer started: Offering {0} ({1}) to {2}", File.Name, Util.FormatFileSize( File.Length ), Recipient );
// Send our header with the file information.
var header = new Header( File );
if ( Recipient.ShouldSendPeers ) // Send our peer list too, if it's time.
{
header.IncludePeerList( );
Recipient.RegisterEvent( PeerStatistics.EventType.SentPeerList );
}
NetworkOutStream.Write( header.ToString( ) );
NetworkOutStream.Flush( );
// Wait for the response.
if ( NetworkInStream.ReadBoolean( ) )
SendFile( );
else
{
log.DebugFormat( "Outgoing file transfer ({0}) was denied!", File.Name );
SetState( State.REJECTED );
}
}
