private static void KillExplorerShell()
{
SEBClientInfo.ExplorerShellWasKilled = false;
//Minimize all Open Windows
try
{
SEBWindowHandler.MinimizeAllOpenWindows();
}
catch (Exception ex)
{
Logger.AddError("Unable to MinimizeAllOpenWindows", null, ex);
}
//Kill the explorer Shell
try
{
SEBClientInfo.ExplorerShellWasKilled = SEBProcessHandler.KillExplorerShell();
}
catch (Exception ex)
{
Logger.AddError("Unable to KillExplorerShell", null, ex);
}
}
public static bool InitSEBDesktop()
{
Logger.AddInformation("Attempting to InitSEBDesktop", (object)null, (Exception)null, (string)null);
SEBDesktopWallpaper.BlankWallpaper();
SEBClipboard.CleanClipboard();
Logger.AddInformation("Clipboard cleaned.", (object)null, (Exception)null, (string)null);
SEBWindowHandler.AllowedExecutables.Clear();
SEBWindowHandler.AllowedExecutables.Add("safeexambrowser");
foreach (Dictionary <string, object> permittedProcess in SEBSettings.permittedProcessList)
{
if ((bool)permittedProcess["active"])
{
SEBWindowHandler.AllowedExecutables.Add(((string)permittedProcess["executable"]).ToLower());
if (!string.IsNullOrWhiteSpace(permittedProcess["windowHandlingProcess"].ToString()))
{
SEBWindowHandler.AllowedExecutables.Add(((string)permittedProcess["windowHandlingProcess"]).ToLower());
}
}
}
if ((bool)SEBClientInfo.getSebSetting("monitorProcesses")["monitorProcesses"])
{
try
{
SEBWindowHandler.EnableForegroundWatchDog();
}
catch (Exception ex)
{
Logger.AddError("Unable to EnableForegroundWatchDog", (object)null, ex, (string)null);
}
SEBProcessHandler.ProhibitedExecutables.Clear();
foreach (Dictionary <string, object> prohibitedProcess in SEBSettings.prohibitedProcessList)
{
if ((bool)prohibitedProcess["active"])
{
SEBProcessHandler.ProhibitedExecutables.Add(((string)prohibitedProcess["executable"]).ToLower());
}
}
try
{
SEBProcessHandler.EnableProcessWatchDog();
}
catch (Exception ex)
{
Logger.AddError("Unable to EnableProcessWatchDog", (object)null, ex, (string)null);
}
}
SEBClientInfo.ExplorerShellWasKilled = false;
if ((bool)SEBClientInfo.getSebSetting("killExplorerShell")["killExplorerShell"])
{
try
{
SEBWindowHandler.MinimizeAllOpenWindows(false);
}
catch (Exception ex)
{
Logger.AddError("Unable to MinimizeAllOpenWindows", (object)null, ex, (string)null);
}
try
{
SEBClientInfo.ExplorerShellWasKilled = SEBProcessHandler.KillExplorerShell();
}
catch (Exception ex)
{
Logger.AddError("Unable to KillExplorerShell", (object)null, ex, (string)null);
}
}
Logger.AddInformation("Successfully InitSEBDesktop", (object)null, (Exception)null, (string)null);
return(true);
}
/// ----------------------------------------------------------------------------------------
/// <summary>
/// Create and initialize new desktop.
/// </summary>
/// <returns>true if succeeded</returns>
/// ----------------------------------------------------------------------------------------
public static bool InitSEBDesktop()
{
//Info: For reverting this actions see SebWindowsClientForm::CloseSEBForm()
Logger.AddInformation("Attempting to InitSEBDesktop");
//Blank the Wallpaper
SEBDesktopWallpaper.BlankWallpaper();
// Clean clipboard
SEBClipboard.CleanClipboard();
Logger.AddInformation("Clipboard cleaned.", null, null);
//Search for permitted Applications (used in Taskswitcher (ALT-TAB) and in foreground watchdog
SEBWindowHandler.AllowedExecutables.Clear();
//Add the SafeExamBrowser to the allowed executables
SEBWindowHandler.AllowedExecutables.Add("safeexambrowser");
//Add allowed executables from all allowedProcessList
foreach (Dictionary <string, object> process in SEBSettings.permittedProcessList)
{
if ((bool)process[SEBSettings.KeyActive])
{
//First add the executable itself
SEBWindowHandler.AllowedExecutables.Add(
((string)process[SEBSettings.KeyExecutable]).ToLower());
if (!String.IsNullOrWhiteSpace(process[SEBSettings.KeyWindowHandlingProcess].ToString()))
{
SEBWindowHandler.AllowedExecutables.Add(
((string)process[SEBSettings.KeyWindowHandlingProcess]).ToLower());
}
}
}
#if DEBUG
//Add visual studio to allowed executables for debugging
SEBWindowHandler.AllowedExecutables.Add("devenv");
#endif
//Process watching
if ((Boolean)SEBClientInfo.getSebSetting(SEBSettings.KeyMonitorProcesses)[SEBSettings.KeyMonitorProcesses] || (Boolean)SEBClientInfo.getSebSetting(SEBSettings.KeyKillExplorerShell)[SEBSettings.KeyKillExplorerShell])
{
#region Foreground Window Watching (Allowed Executables)
//This prevents the not allowed executables from poping up
try
{
SEBWindowHandler.EnableForegroundWatchDog();
}
catch (Exception ex)
{
Logger.AddError("Unable to EnableForegroundWatchDog", null, ex);
}
#endregion
#region Prohibited Executables watching
//Handle prohibited executables watching
SEBProcessHandler.ProhibitedExecutables.Clear();
//Add prohibited executables
foreach (Dictionary <string, object> process in SEBSettings.prohibitedProcessList)
{
if ((bool)process[SEBSettings.KeyActive])
{
//First add the executable itself
SEBProcessHandler.ProhibitedExecutables.Add(
((string)process[SEBSettings.KeyExecutable]).ToLower());
}
}
//This prevents the prohibited executables from starting up
try
{
SEBProcessHandler.EnableProcessWatchDog();
}
catch (Exception ex)
{
Logger.AddError("Unable to EnableProcessWatchDog", null, ex);
}
#endregion
}
//Kill Explorer Shell
// Global variable indicating if the explorer shell has been killed
SEBClientInfo.ExplorerShellWasKilled = false;
if ((Boolean)SEBClientInfo.getSebSetting(SEBSettings.KeyKillExplorerShell)[SEBSettings.KeyKillExplorerShell])
{
//Minimize all Open Windows
try
{
SEBWindowHandler.MinimizeAllOpenWindows();
}
catch (Exception ex)
{
Logger.AddError("Unable to MinimizeAllOpenWindows", null, ex);
}
//Kill the explorer Shell
try
{
SEBClientInfo.ExplorerShellWasKilled = SEBProcessHandler.KillExplorerShell();
}
catch (Exception ex)
{
Logger.AddError("Unable to KillExplorerShell", null, ex);
}
}
Logger.AddInformation("Successfully InitSEBDesktop");
return(true);
}