Add handler for DCC-SEND

[quassel.git] / src / core / coresessioneventprocessor.cpp

diff --git a/src/core/coresessioneventprocessor.cpp b/src/core/coresessioneventprocessor.cpp
index f8fd4d7..844155b 100644 (file)
--- a/src/core/coresessioneventprocessor.cpp
+++ b/src/core/coresessioneventprocessor.cpp
@@ -23,12 +23,14 @@
 #include "coreirclisthelper.h"
 #include "corenetwork.h"
 #include "coresession.h"
+#include "coretransfermanager.h"
 #include "ctcpevent.h"
 #include "ircevent.h"
 #include "ircuser.h"
 #include "messageevent.h"
 #include "netsplit.h"
 #include "quassel.h"
+#include "transfer.h"
 
 #ifdef HAVE_QCA2
 #  include "keyevent.h"
@@ -1014,6 +1016,61 @@ void CoreSessionEventProcessor::handleCtcpClientinfo(CtcpEvent *e)
 }
 
 
+// http://www.irchelp.org/irchelp/rfc/ctcpspec.html
+// http://en.wikipedia.org/wiki/Direct_Client-to-Client
+void CoreSessionEventProcessor::handleCtcpDcc(CtcpEvent *e)
+{
+    // normal:  SEND <filename> <ip> <port> [<filesize>]
+    // reverse: SEND <filename> <ip> 0 <filesize> <token>
+    QStringList params = e->param().split(' ');
+    if (params.count()) {
+        QString cmd = params[0].toUpper();
+        if (cmd == "SEND") {
+            if (params.count() < 4) {
+                qWarning() << "Invalid DCC SEND request:" << e;  // TODO emit proper error to client
+                return;
+            }
+            QString filename = params[1];
+            QHostAddress address;
+            quint16 port = params[3].toUShort();
+            quint64 size = 0;
+            QString numIp = params[2]; // this is either IPv4 as a 32 bit value, or IPv6 (which always contains a colon)
+            if (numIp.contains(':')) { // IPv6
+                if (!address.setAddress(numIp)) {
+                    qWarning() << "Invalid IPv6:" << numIp;
+                    return;
+                }
+            }
+            else {
+                address.setAddress(numIp.toUInt());
+            }
+
+            if (port == 0) { // Reverse DCC is indicated by a 0 port
+                emit newEvent(new MessageEvent(Message::Error, e->network(), tr("Reverse DCC SEND not supported"), e->prefix(), e->target(), Message::None, e->timestamp()));
+                return;
+            }
+            if (port < 1024) {
+                qWarning() << "Privileged port requested:" << port; // FIXME ask user if this is ok
+            }
+
+
+            if (params.count() > 4) { // filesize is optional
+                size = params[4].toULong();
+            }
+
+            // TODO: check if target is the right thing to use for the partner
+            Transfer *transfer = new Transfer(Transfer::Receive, e->target(), filename, address, port, size, this);
+            coreSession()->signalProxy()->synchronize(transfer);
+            coreSession()->transferManager()->addTransfer(transfer);
+        }
+        else {
+            emit newEvent(new MessageEvent(Message::Error, e->network(), tr("DCC %1 not supported").arg(cmd), e->prefix(), e->target(), Message::None, e->timestamp()));
+            return;
+        }
+    }
+}
+
+
 void CoreSessionEventProcessor::handleCtcpPing(CtcpEvent *e)
 {
     e->setReply(e->param().isNull() ? "" : e->param());