internal void Parse(Connection connection, string message)
{
Debug.WriteLineIf(DccUtil.DccTrace.TraceInfo, "[" + Thread.CurrentThread.Name + "] DccListener::Parse()");
Match match = parser.Match(message);
string requestor = match.Groups[1].ToString();
string[] tokens = tokenizer.Split(match.Groups[2].ToString().Trim());
switch (tokens[Action])
{
case CHAT:
if (OnDccChatRequest != null)
{
//Test for sufficient number of arguments
if (tokens.Length < 4)
{
connection.Listener.Error(ReplyCode.UnparseableMessage, "Incorrect CHAT arguments: " + message);
return;
}
//Send event
DccUserInfo dccUserInfo = null;
try
{
dccUserInfo = new DccUserInfo(
connection,
Rfc2812Util.ParseUserInfoLine(requestor),
new IPEndPoint(DccUtil.LongToIPAddress(tokens[Address]), int.Parse(tokens[Port], CultureInfo.InvariantCulture)));
}
catch (ArgumentException ae)
{
connection.Listener.Error(ReplyCode.BadDccEndpoint, "Invalid TCP/IP connection information sent.");
return;
}
try
{
OnDccChatRequest(dccUserInfo);
}
catch (ArgumentException ae)
{
connection.Listener.Error(ReplyCode.UnknownEncryptionProtocol, ae.ToString());
}
}
break;
case SEND:
//Test for sufficient number of arguments
if (tokens.Length < 5)
{
connection.Listener.Error(ReplyCode.UnparseableMessage, "Incorrect SEND arguments: " + message);
return;
}
if (OnDccSendRequest != null)
{
DccUserInfo dccUserInfo = null;
try
{
dccUserInfo = new DccUserInfo(
connection,
Rfc2812Util.ParseUserInfoLine(requestor),
new IPEndPoint(DccUtil.LongToIPAddress(tokens[Address]), int.Parse(tokens[Port], CultureInfo.InvariantCulture)));
}
catch (ArgumentException ae)
{
connection.Listener.Error(ReplyCode.BadDccEndpoint, ae.ToString());
return;
}
try
{
OnDccSendRequest(
dccUserInfo,
tokens[FileName],
int.Parse(tokens[FileSize], CultureInfo.InvariantCulture),
IsTurbo(5, tokens));
}
catch (ArgumentException ae)
{
connection.Listener.Error(ReplyCode.UnknownEncryptionProtocol, ae.ToString());
}
}
break;
case GET:
//Test for sufficient number of arguments
if (tokens.Length < 2)
{
connection.Listener.Error(ReplyCode.UnparseableMessage, "Incorrect GET arguments: " + message);
return;
}
if (OnDccGetRequest != null)
{
try
{
OnDccGetRequest(
new DccUserInfo(
connection,
Rfc2812Util.ParseUserInfoLine(requestor)),
tokens[FileName],
IsTurbo(2, tokens));
}
catch (ArgumentException ae)
{
connection.Listener.Error(ReplyCode.UnknownEncryptionProtocol, ae.ToString());
}
}
break;
case ACCEPT:
//Test for sufficient number of arguments
if (tokens.Length < 4)
{
connection.Listener.Error(ReplyCode.UnparseableMessage, "Incorrect DCC ACCEPT arguments: " + message);
return;
}
//DccListener will try to handle Receive at correct file position
try
{
DccFileSession session = DccFileSessionManager.DefaultInstance.LookupSession("C" + tokens[2]);
session.OnDccAcceptReceived(long.Parse(tokens[3], CultureInfo.InvariantCulture));
}
catch (ArgumentException e)
{
connection.Listener.Error(ReplyCode.UnableToResume, e.ToString());
}
break;
case RESUME:
//Test for sufficient number of arguments
if (tokens.Length < 4)
{
connection.Listener.Error(ReplyCode.UnparseableMessage, "Incorrect DCC RESUME arguments: " + message);
return;
}
//DccListener will automatically handle Resume/Accept interaction
try
{
DccFileSession session = DccFileSessionManager.DefaultInstance.LookupSession("S" + tokens[2]);
session.OnDccResumeRequest(long.Parse(tokens[3], CultureInfo.InvariantCulture));
}
catch (ArgumentException e)
{
connection.Listener.Error(ReplyCode.UnableToResume, e.ToString());
}
break;
default:
connection.Listener.Error(ReplyCode.UnparseableMessage, message);
Debug.WriteLineIf(DccUtil.DccTrace.TraceError, "[" + Thread.CurrentThread.Name + "] DccListener::Parse() Unknown DCC command");
break;
}
}
