1 files changed, 65 insertions, 11 deletions

diff --git a/common/rfb/VNCServerST.cxx b/common/rfb/VNCServerST.cxx
index 21af0dac..a3655bca 100644
--- a/common/rfb/VNCServerST.cxx
+++ b/common/rfb/VNCServerST.cxx
@@ -1,5 +1,5 @@
 /* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
- * Copyright 2009-2018 Pierre Ossman for Cendio AB
+ * Copyright 2009-2019 Pierre Ossman for Cendio AB
  * 
  * This is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -77,8 +77,8 @@ static LogWriter connectionsLog("Connections");
 VNCServerST::VNCServerST(const char* name_, SDesktop* desktop_)
   : blHosts(&blacklist), desktop(desktop_), desktopStarted(false),
     blockCounter(0), pb(0), ledState(ledUnknown),
-    name(strDup(name_)), pointerClient(0), comparer(0),
-    cursor(new Cursor(0, 0, Point(), NULL)),
+    name(strDup(name_)), pointerClient(0), clipboardClient(0),
+    comparer(0), cursor(new Cursor(0, 0, Point(), NULL)),
     renderedCursorInvalid(false),
     keyRemapper(&KeyRemapper::defInstance),
     idleTimer(this), disconnectTimer(this), connectTimer(this),
@@ -167,9 +167,12 @@ void VNCServerST::removeSocket(network::Socket* sock) {
     if ((*ci)->getSock() == sock) {
       clients.remove(*ci);
 
-      // - Release the cursor if this client owns it
+      // - Remove any references to it
       if (pointerClient == *ci)
         pointerClient = NULL;
+      if (clipboardClient == *ci)
+        clipboardClient = NULL;
+      clipboardRequestors.remove(*ci);
 
       // Adjust the exit timers
       connectTimer.stop();
@@ -331,23 +334,51 @@ void VNCServerST::setScreenLayout(const ScreenSet& layout)
   }
 }
 
-void VNCServerST::bell()
+void VNCServerST::requestClipboard()
+{
+  if (clipboardClient == NULL)
+    return;
+
+  clipboardClient->requestClipboard();
+}
+
+void VNCServerST::announceClipboard(bool available)
 {
   std::list<VNCSConnectionST*>::iterator ci, ci_next;
+
+  if (available)
+    clipboardClient = NULL;
+
+  clipboardRequestors.clear();
+
   for (ci = clients.begin(); ci != clients.end(); ci = ci_next) {
     ci_next = ci; ci_next++;
-    (*ci)->bellOrClose();
+    (*ci)->announceClipboard(available);
   }
 }
 
-void VNCServerST::serverCutText(const char* str)
+void VNCServerST::sendClipboardData(const char* data)
 {
-  if (strchr(str, '\r') != NULL)
+  std::list<VNCSConnectionST*>::iterator ci, ci_next;
+
+  if (strchr(data, '\r') != NULL)
     throw Exception("Invalid carriage return in clipboard data");
+
+  for (ci = clipboardRequestors.begin();
+       ci != clipboardRequestors.end(); ci = ci_next) {
+    ci_next = ci; ci_next++;
+    (*ci)->sendClipboardData(data);
+  }
+
+  clipboardRequestors.clear();
+}
+
+void VNCServerST::bell()
+{
   std::list<VNCSConnectionST*>::iterator ci, ci_next;
   for (ci = clients.begin(); ci != clients.end(); ci = ci_next) {
     ci_next = ci; ci_next++;
-    (*ci)->serverCutTextOrClose(str);
+    (*ci)->bellOrClose();
   }
 }
 
@@ -461,9 +492,32 @@ void VNCServerST::pointerEvent(VNCSConnectionST* client,
   desktop->pointerEvent(pos, buttonMask);
 }
 
-void VNCServerST::clientCutText(const char* str)
+void VNCServerST::handleClipboardRequest(VNCSConnectionST* client)
 {
-  desktop->clientCutText(str);
+  clipboardRequestors.push_back(client);
+  if (clipboardRequestors.size() == 1)
+    desktop->handleClipboardRequest();
+}
+
+void VNCServerST::handleClipboardAnnounce(VNCSConnectionST* client,
+                                          bool available)
+{
+  if (available)
+    clipboardClient = client;
+  else {
+    if (client != clipboardClient)
+      return;
+    clipboardClient = NULL;
+  }
+  desktop->handleClipboardAnnounce(available);
+}
+
+void VNCServerST::handleClipboardData(VNCSConnectionST* client,
+                                      const char* data)
+{
+  if (client != clipboardClient)
+    return;
+  desktop->handleClipboardData(data);
 }
 
 unsigned int VNCServerST::setDesktopSize(VNCSConnectionST* requester,