Migrating to new directory structure adopted from the RealVNC's source tree. More changes will follow.

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@591 3789f03b-4d11-0410-bbf8-ca57d06f2519

1 files changed, 93 insertions, 0 deletions

diff --git a/win/rfb_win32/TsSessions.cxx b/win/rfb_win32/TsSessions.cxx
new file mode 100644
index 00000000..efe75640
--- /dev/null
+++ b/win/rfb_win32/TsSessions.cxx
@@ -0,0 +1,93 @@
+/* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
+ * 
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+#include <rfb_win32/TsSessions.h>
+#include <rfb_win32/DynamicFn.h>
+#include <rfb/LogWriter.h>
+#include <rdr/Exception.h>
+#include <tchar.h>
+
+#ifdef ERROR_CTX_WINSTATION_BUSY
+#define RFB_HAVE_WINSTATION_CONNECT
+#else
+#pragma message("  NOTE: Not building WinStationConnect support.")
+#endif
+
+static rfb::LogWriter vlog("TsSessions");
+
+namespace rfb {
+namespace win32 {
+
+  // Windows XP (and later) functions used to handle session Ids
+  typedef BOOLEAN (WINAPI *_WinStationConnect_proto) (HANDLE,ULONG,ULONG,PCWSTR,ULONG);
+  DynamicFn<_WinStationConnect_proto> _WinStationConnect(_T("winsta.dll"), "WinStationConnectW");
+  typedef DWORD (WINAPI *_WTSGetActiveConsoleSessionId_proto) ();
+  DynamicFn<_WTSGetActiveConsoleSessionId_proto> _WTSGetActiveConsoleSessionId(_T("kernel32.dll"), "WTSGetActiveConsoleSessionId");
+  typedef BOOL (WINAPI *_ProcessIdToSessionId_proto) (DWORD, DWORD*);
+  DynamicFn<_ProcessIdToSessionId_proto> _ProcessIdToSessionId(_T("kernel32.dll"), "ProcessIdToSessionId");
+  typedef BOOL (WINAPI *_LockWorkStation_proto)();
+  DynamicFn<_LockWorkStation_proto> _LockWorkStation(_T("user32.dll"), "LockWorkStation");
+
+
+  ProcessSessionId::ProcessSessionId(DWORD processId) {
+    id = 0;
+    if (!_ProcessIdToSessionId.isValid())
+      return;
+    if (processId == -1)
+      processId = GetCurrentProcessId();
+    if (!(*_ProcessIdToSessionId)(GetCurrentProcessId(), &id))
+      throw rdr::SystemException("ProcessIdToSessionId", GetLastError());
+  }
+
+  ProcessSessionId mySessionId;
+
+  ConsoleSessionId::ConsoleSessionId() {
+    if (_WTSGetActiveConsoleSessionId.isValid())
+      id = (*_WTSGetActiveConsoleSessionId)();
+    else
+      id = 0;
+  }
+
+  bool inConsoleSession() {
+    ConsoleSessionId console;
+    return console.id == mySessionId.id;
+  }
+
+  void setConsoleSession(DWORD sessionId) {
+#ifdef RFB_HAVE_WINSTATION_CONNECT
+    if (!_WinStationConnect.isValid())
+      throw rdr::Exception("WinSta APIs missing");
+    if (sessionId == -1)
+      sessionId = mySessionId.id;
+
+    // Try to reconnect our session to the console
+    ConsoleSessionId console;
+    vlog.info("Console session is %d", console.id);
+    if (!(*_WinStationConnect)(0, sessionId, console.id, L"", 0))
+      throw rdr::SystemException("Unable to connect session to Console", GetLastError());
+
+    // Lock the newly connected session, for security
+    if (_LockWorkStation.isValid())
+      (*_LockWorkStation)();
+#else
+    throw rdr::Exception("setConsoleSession not implemented");
+#endif
+  }
+
+};
+};