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-rw-r--r--kopete/protocols/oscar/liboscar/snacprotocol.cpp109
1 files changed, 109 insertions, 0 deletions
diff --git a/kopete/protocols/oscar/liboscar/snacprotocol.cpp b/kopete/protocols/oscar/liboscar/snacprotocol.cpp
new file mode 100644
index 00000000..3bf16bbc
--- /dev/null
+++ b/kopete/protocols/oscar/liboscar/snacprotocol.cpp
@@ -0,0 +1,109 @@
+/*
+ Kopete Oscar Protocol
+ snacprotocol.cpp - reads the protocol used by Oscar for signalling stuff
+
+ Copyright (c) 2004 Matt Rogers <mattr@kde.org>
+ Based on code copyright (c) 2004 SUSE Linux AG <http://www.suse.com>
+
+ Kopete (c) 2002-2004 by the Kopete developers <kopete-devel@kde.org>
+
+ *************************************************************************
+ * *
+ * This library is free software; you can redistribute it and/or *
+ * modify it under the terms of the GNU Lesser General Public *
+ * License as published by the Free Software Foundation; either *
+ * version 2 of the License, or (at your option) any later version. *
+ * *
+ *************************************************************************
+*/
+
+#include "snacprotocol.h"
+
+#include <qcstring.h>
+#include <qdatastream.h>
+#include <qobject.h>
+#include <kdebug.h>
+#include <stdlib.h>
+#include "transfer.h"
+
+
+using namespace Oscar;
+
+SnacProtocol::SnacProtocol(QObject *parent, const char *name)
+ : InputProtocolBase(parent, name)
+{
+}
+
+SnacProtocol::~SnacProtocol()
+{
+}
+
+Transfer* SnacProtocol::parse( const QByteArray & packet, uint& bytes )
+{
+ BYTE b;
+ WORD w;
+ DWORD dw;
+
+ FLAP f;
+ SNAC s;
+ SnacTransfer *st;
+ QDataStream* m_din = new QDataStream( packet, IO_ReadOnly );
+
+ //flap parsing
+ *m_din >> b; //this should be the start byte
+ //kdDebug(OSCAR_RAW_DEBUG) << k_funcinfo << "start byte is " << b << endl;
+ *m_din >> b;
+ f.channel = b;
+ *m_din >> w;
+ f.sequence = w;
+ *m_din >> w;
+ f.length = w;
+
+ if ( ( f.length + 6 ) > packet.size() )
+ {
+ kdDebug(OSCAR_RAW_DEBUG) << k_funcinfo << "Packet not big enough to parse!" << endl;
+ kdDebug(OSCAR_RAW_DEBUG) << k_funcinfo << "packet size is " << packet.size()
+ << " we need " << f.length + 6 << endl;
+ return 0;
+ }
+ //snac parsing
+ *m_din >> w;
+ s.family = w;
+ *m_din >> w;
+ s.subtype = w;
+ *m_din >> w;
+ s.flags = w;
+ *m_din >> dw;
+ s.id = dw;
+
+ kdDebug(OSCAR_RAW_DEBUG) << k_funcinfo << "family: " << s.family
+ << " subtype: " << s.subtype << " flags: " << s.flags
+ << " id: " << s.id << endl;
+
+ //use pointer arithmatic to skip the flap and snac headers
+ //so we don't have to do double parsing in the tasks
+ char* charPacket = packet.data();
+ char* snacData;
+ int snacOffset = 10; //default
+ if ( s.flags >= 0x8000 ) //skip the next 8 bytes, we don't care about the snac version ATM
+ {
+ //kdDebug(OSCAR_RAW_DEBUG) << k_funcinfo << "skipping snac version" << endl;
+ snacOffset = 18;
+ snacData = charPacket + 24;
+ }
+ else
+ {
+ snacOffset = 10;
+ snacData = charPacket + 16;
+ }
+
+ Buffer *snacBuffer = new Buffer( snacData, f.length - snacOffset );
+ st = new SnacTransfer( f, s, snacBuffer );
+ bytes = f.length + 6;
+ delete m_din;
+ m_din = 0;
+ return st;
+}
+
+
+#include "snacprotocol.moc"