private void OnConnectNode_MenuItemClick(object sender, EventArgs e)
{
if (ContextNode == null)
{
return;
}
try
{
if (ContextNode.Tag is Slave)
{
Slave ss = ContextNode.Tag as Slave;
ss.Connect(false, UserCredentials);
}
else if (ContextNode.Tag is HostGroup)
{
HostGroup Group = ContextNode.Tag as HostGroup;
foreach (Slave ss in Group.Slaves)
{
ss.Connect(false, UserCredentials);
}
}
else
{
return;
}
}
catch (Exception ex)
{
MessageBox.Show("Unable to connect: " + ex.ToString());
}
}
void Slave_Connection_OnMessage(Slave_Connection SC, System.Xml.Linq.XElement xMsg)
{
// This event is called from an independent thread belonging to the particular slave.
#if DEBUG
// In the startup debugging phase, intercept anything and queue it for later.
if (StartupDebugging)
{
lock (this) { DebugQueue.Enqueue(new Tuple <Slave_Connection, System.Xml.Linq.XElement>(SC, xMsg)); } return;
}
#endif
Slave found = null;
lock (Slaves)
{
foreach (Slave ss in Slaves)
{
if (ss.Connection == SC)
{
found = ss;
break;
}
}
}
if (found != null)
//lock (found)
{
Terminal.OnMessage(found, xMsg);
return;
}
throw new Exception("Slave not found in current connections list.");
}
private void OnDisconnectNode_MenuItemClick(object sender, EventArgs e)
{
if (ContextNode == null)
{
return;
}
try
{
if (ContextNode.Tag is Slave)
{
Slave ss = ContextNode.Tag as Slave;
ss.Disconnect();
}
else if (ContextNode.Tag is HostGroup)
{
HostGroup Group = ContextNode.Tag as HostGroup;
foreach (Slave ss in Group.Slaves)
{
ss.Disconnect();
}
}
else
{
return;
}
}
catch (Exception ex)
{
MessageBox.Show("Error while disconnecting: " + ex.ToString());
}
}
void SaveHostListToRegistry()
{
lock (Slaves)
{
lock (ComputerTree)
{
// Clear any existing registry entries that are no longer present.
using (RegistryKey key = Registry.CurrentUser.OpenSubKey(HostRegSubKey, true))
{
if (key != null)
{
string[] subkeys = key.GetSubKeyNames();
foreach (string subkey in subkeys)
{
bool StillPresent = false;
foreach (TreeNode tn in HostNodes.Nodes)
{
Slave ThatSlave = (Slave)tn.Tag;
if (subkey == ThatSlave.HostName)
{
StillPresent = true; break;
}
}
if (!StillPresent)
{
key.DeleteSubKey(subkey);
}
}
}
}
// Create the listing.
using (RegistryKey key = Registry.CurrentUser.CreateSubKey(HostRegSubKey))
{
foreach (TreeNode tn in HostNodes.Nodes)
{
Slave ThatSlave = (Slave)tn.Tag;
if (ThatSlave.HostName == "localhost")
{
continue;
}
key.CreateSubKey(ThatSlave.HostName);
}
}
}
}
}
private void addHostStripMenuItem_Click(object sender, EventArgs e)
{
AddHostForm ahf = new AddHostForm(Groups, LastAdditions);
if (ahf.ShowDialog() != DialogResult.OK)
{
return;
}
LastAdditions = ahf.Membership;
Slave NewSlave = new Slave(ahf.HostName, AcceptedCertificates);
lock (Slaves)
{
NewSlave.Connection.OnMessage += Slave_Connection_OnMessage;
NewSlave.Connection.OnConnectionState += Slave_Connection_OnState;
Slaves.Add(NewSlave);
lock (ComputerTree)
{
Terminal.AddSlave(NewSlave);
string Display = NewSlave.HostName + " (Disconnected)";
TreeNode SlaveNode = new TreeNode(Display);
SlaveNode.Tag = NewSlave;
HostNodes.Nodes.Add(SlaveNode);
foreach (HostGroup Group in LastAdditions)
{
Group.Slaves.Add(NewSlave);
List <TreeNode> Instances = FindAllInstancesOfGroup(Group.Name);
foreach (TreeNode tn in Instances)
{
TreeNode GNode = new TreeNode(Display);
GNode.Tag = NewSlave;
tn.Nodes.Add(GNode);
tn.Text = Group.GetDisplayText();
}
}
Legend.Invalidate();
}
}
SaveHostListToRegistry();
SaveGroupListToRegistry();
}
protected override void OnPaint(PaintEventArgs pe)
{
base.OnPaint(pe);
Graphics g = pe.Graphics;
const int LeftMargin = 10;
SizeF szGenericText = g.MeasureString("gY", Font);
int ClientHeight = ClientRectangle.Height;
int TopMargin = (int)(ClientHeight / 2 - szGenericText.Height / 2);
int VerticalBarMargin = 5;
if (Source == null)
{
g.DrawString("No source provided.", Font, Brushes.Black, new PointF(LeftMargin, TopMargin));
return;
}
List <Slave> Markers = Source.GetMarkerLegend();
int xx = LeftMargin;
int MarkerWidth = 4;
int TextMargin = 3;
int BetweenMarkers = 8;
for (int ii = 0; ii < Markers.Count; ii++)
{
Slave ss = Markers[ii];
Rectangle rr = new Rectangle(xx, VerticalBarMargin, MarkerWidth, ClientHeight - 2 * VerticalBarMargin);
g.FillRectangle(new SolidBrush(ss.DarkColor), rr);
xx += MarkerWidth + TextMargin;
g.DrawString(ss.HostName, Font, Brushes.Black, new PointF(xx, TopMargin));
SizeF szText = g.MeasureString(ss.HostName, Font);
xx += (int)szText.Width;
xx += TextMargin + BetweenMarkers;
}
}
void RemoveHost(Slave ss)
{
lock (Slaves)
{
lock (ComputerTree)
{
List <TreeNode> Instances = FindAllInstancesOfSlave(ss.HostName);
Slaves.Remove(ss);
Terminal.RemoveSlave(ss);
foreach (TreeNode tn in Instances)
{
TreeNode Parent = tn.Parent;
Parent.Nodes.Remove(tn);
if (Parent.Tag as HostGroup != null)
{
Parent.Text = ((HostGroup)Parent.Tag).GetDisplayText();
}
}
Legend.Invalidate();
}
}
}
private void OnRemoveNode_MenuItemClick(object sender, EventArgs e)
{
if (ContextNode == null)
{
return;
}
if (ContextNode.Tag is Slave)
{
Slave ss = ContextNode.Tag as Slave;
// Removing a slave...
if (MessageBox.Show("Remove the host '" + ss.HostName + "'?", "Please confirm", MessageBoxButtons.OKCancel) != DialogResult.OK)
{
return;
}
lock (ComputerTree)
{
List <TreeNode> Instances = FindAllInstancesOfSlave(ss.HostName);
if (Instances.Count > 1)
{
if (MessageBox.Show("The host '" + ss.HostName + "' is a member of " + (Instances.Count - 1).ToString() + " groups. Are you sure you want to remove it from all listings?", "Please confirm", MessageBoxButtons.YesNo) != DialogResult.Yes)
{
return;
}
}
}
RemoveHost(ss);
}
else
{
HostGroup Group = ContextNode.Tag as HostGroup;
if (Group == null)
{
return;
}
// Removing a group...
if (MessageBox.Show("Remove the group '" + Group.Name + "'?", "Please confirm", MessageBoxButtons.OKCancel) != DialogResult.OK)
{
return;
}
bool AlsoHosts = false;
switch (MessageBox.Show("Do you also want to remove all hosts that are part of the group '" + Group.Name + "'?", "Please confirm", MessageBoxButtons.YesNoCancel))
{
case DialogResult.Yes: AlsoHosts = true; break;
case DialogResult.No: AlsoHosts = false; break;
case DialogResult.Cancel: return;
default: return;
}
lock (Slaves)
{
lock (ComputerTree)
{
if (AlsoHosts)
{
foreach (Slave ss in Group.Slaves)
{
RemoveHost(ss);
}
}
List <TreeNode> Instances = FindAllInstancesOfGroup(Group.Name);
foreach (TreeNode tnGroup in Instances)
{
tnGroup.Parent.Nodes.Remove(tnGroup);
}
Groups.Remove(Group);
Legend.Invalidate();
}
}
}
SaveHostListToRegistry();
SaveGroupListToRegistry();
}
private void OnEditMembership_MenuItemClick(object sender, EventArgs e)
{
if (ContextNode == null)
{
return;
}
Slave ss = ContextNode.Tag as Slave;
if (ss == null)
{
return;
}
List <HostGroup> Memberships = new List <HostGroup>();
lock (Slaves)
{
lock (ComputerTree)
{
foreach (TreeNode v in GroupNodes.Nodes)
{
HostGroup Group = v.Tag as HostGroup;
if (Group.Slaves.Contains(ss))
{
Memberships.Add(Group);
}
}
}
}
AddHostForm ahf = new AddHostForm(Groups, Memberships);
ahf.HostName = ss.HostName;
if (ahf.ShowDialog() != DialogResult.OK)
{
return;
}
Memberships = ahf.Membership;
lock (Slaves)
{
lock (ComputerTree)
{
List <TreeNode> ExistingInstances = FindAllInstancesOfSlave(ss.HostName);
foreach (TreeNode tnGroup in GroupNodes.Nodes)
{
HostGroup Group = (HostGroup)tnGroup.Tag;
if (Memberships.Contains(Group))
{
if (!Group.Slaves.Contains(ss))
{
// New membership added...
Group.Slaves.Add(ss);
TreeNode GNode = new TreeNode(ContextNode.Text);
GNode.Tag = ss;
tnGroup.Nodes.Add(GNode);
tnGroup.Text = Group.GetDisplayText();
}
}
else
{
if (Group.Slaves.Contains(ss))
{
// Existing membership revoked...
Group.Slaves.Remove(ss);
List <TreeNode> hits = new List <TreeNode>();
foreach (TreeNode tnHosts in tnGroup.Nodes)
{
if (((Slave)tnHosts.Tag).HostName == ss.HostName)
{
hits.Add(tnHosts);
}
}
foreach (TreeNode tn in hits)
{
tnGroup.Nodes.Remove(tn);
}
tnGroup.Text = Group.GetDisplayText();
}
}
}
Legend.Invalidate();
}
}
SaveHostListToRegistry();
SaveGroupListToRegistry();
}
private void MainForm_Load(object sender, EventArgs e)
{
try
{
RegistryKey key = Registry.CurrentUser.OpenSubKey(AppRegSubKey);
Left = (int)key.GetValue("MainForm_Left", Left);
Top = (int)key.GetValue("MainForm_Top", Top);
Width = (int)key.GetValue("MainForm_Width", Width);
Height = (int)key.GetValue("MainForm_Height", Height);
MainSplitContainer.SplitterDistance = (int)key.GetValue("MainForm_SplitterDistance", MainSplitContainer.SplitterDistance);
Terminal.TextFontSizeInPoints = (int)key.GetValue("Terminal_TextFontSize", (int)Terminal.TextFontSizeInPoints);
}
catch (Exception)
{
MainSplitContainer_Resize(null, null);
}
try
{
Show();
CredentialsDialog cd = new CredentialsDialog(this);
cd.Caption = "Please provide the account to use upon connecting.";
cd.Message = "Enter credentials.";
if (cd.ShowDialog() != DialogResult.OK)
{
Close();
return;
}
UserCredentials = cd.Credentials;
lock (Slaves)
{
lock (ComputerTree)
{
ComputerTree.Nodes.Add(HostNodes);
ComputerTree.Nodes.Add(GroupNodes);
// Add a LocalHost slave running in this process. Looks just like the service, but runs whenever parallel terminal is running- just in case
// the user wants to run something to include localhost.
LocalHostSlave = new SlaveCore(this, true);
// Add all slaves and only start connecting them after they've all been added. This ensures proper semantics in the TerminalControl.
Slaves.Add(new Slave("localhost", AcceptedCertificates));
// Find all other hosts that we've previously opened and use
RegistryKey key = Registry.CurrentUser.OpenSubKey(HostRegSubKey, false);
if (key != null)
{
foreach (var v in key.GetSubKeyNames())
{
Slave NewSlave = new Slave(v, AcceptedCertificates);
Slaves.Add(NewSlave);
}
}
foreach (Slave ss in Slaves)
{
ss.Connection.OnMessage += Slave_Connection_OnMessage;
ss.Connection.OnConnectionState += Slave_Connection_OnState;
Terminal.AddSlave(ss);
TreeNode SlaveNode = new TreeNode(ss.HostName + " (Disconnected)");
SlaveNode.Tag = ss;
SlaveNode.Checked = false;
HostNodes.Nodes.Add(SlaveNode);
}
// Find all groups we've previously had and restore them
key = Registry.CurrentUser.OpenSubKey(GroupsRegSubKey, false);
if (key != null)
{
foreach (var v in key.GetSubKeyNames())
{
var group_key = key.OpenSubKey(v, false);
HostGroup Group = new HostGroup(v);
Groups.Add(Group);
TreeNode GNode = new TreeNode(group_key + " (Disconnected)");
GNode.Tag = Group;
object HostList = group_key.GetValue("Includes-Hosts");
if (HostList as string != null)
{
string[] HostNames = ((string)HostList).Split(new char[] { ';' });
foreach (string HostName in HostNames)
{
Slave Match = null;
foreach (Slave ss in Slaves)
{
if (ss.HostName == HostName)
{
Match = ss; break;
}
}
if (Match != null)
{
Group.Slaves.Add(Match);
TreeNode HNode = new TreeNode(Match.HostName + " (Disconnected)");
HNode.Tag = Match;
HNode.Checked = false;
GNode.Nodes.Add(HNode);
}
}
}
GNode.Text = Group.GetDisplayText();
GroupNodes.Nodes.Add(GNode);
}
}
GUITimer.Enabled = true;
ComputerTree.ExpandAll();
Legend.Invalidate();
Terminal.Focus();
Terminal.Select();
}
}
ComputerTree_AfterCheck(null, null);
if (!IsOnScreen(this))
{
Top = 10; Left = 10;
Width = 1000; Height = 1000;
}
Application.DoEvents(); // Clear out any keyboard events.
Terminal.Enabled = true; // Enable keyboard input after dialog box.
}
catch (Exception ex) {
MessageBox.Show(ex.ToString());
Close();
}
}
//bool PendingSelfTest = true;
#endif
private void GUITimer_Tick(object sender, EventArgs e)
{
/** Process startup diagnostics when appropriate **/
#if DEBUG
/*
* if (PendingSelfTest && SinceCredentials.ElapsedMilliseconds > 3000)
* {
* Terminal.SelfTest();
* PendingSelfTest = false;
* }
* else if (StartupDebugging && SinceCredentials.ElapsedMilliseconds > 3200)
* {
* StartupDebugging = false;
* FinishDebugTests();
* }
*/
#endif
/** Process any exceptions that happened on slave worker threads **/
foreach (Slave ss in Slaves)
{
Exception LastError = ss.Connection.GetLastError();
if (LastError != null)
{
if (LastError is Slave_Connection.ConnectionException)
{
MessageBox.Show(LastError.Message);
}
else
{
MessageBox.Show("Error processing connection to " + ss.HostName + ": " + LastError.ToString());
}
ss.Disconnect();
}
}
/** Process any queued state changes **/
lock (StateQueueLock)
{
while (StateChanges.Count > 0)
{
var SCI = StateChanges.Dequeue();
Slave CurrentSlave = FindSlave(SCI.Item1);
if (CurrentSlave == null)
{
throw new ArgumentException("Connection state changed for host not found in listing.");
}
lock (ComputerTree)
{
foreach (TreeNode CurrentNode in FindAllInstancesOfSlave(CurrentSlave.HostName))
{
switch (SCI.Item2)
{
case Slave_Connection.Connection_State.Connecting:
{
CurrentNode.Text = CurrentSlave.HostName + " (Connecting)";
break;
}
case Slave_Connection.Connection_State.EncryptionEstablished:
{
CurrentNode.Text = CurrentSlave.HostName + " (Connecting Terminal)";
break;
}
case Slave_Connection.Connection_State.Connected:
{
CurrentNode.Text = CurrentSlave.HostName;
break;
}
case Slave_Connection.Connection_State.Disconnected:
{
CurrentNode.Text = CurrentSlave.HostName + " (Disconnected)";
break;
}
default: throw new NotSupportedException();
}
TreeNode tnGroup = CurrentNode.Parent;
if (!(tnGroup.Tag is HostGroup))
{
continue;
}
tnGroup.Text = ((HostGroup)tnGroup.Tag).GetDisplayText();
}
}
}
}
}
private void ComputerTree_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e)
{
if (e.Button != MouseButtons.Right)
{
return;
}
Point MousePos = e.Location;
ContextNode = e.Node;
Slave ContextSlave = ContextNode.Tag as Slave;
HostGroup ContextGroup = ContextNode.Tag as HostGroup;
MenuItem miConnect = new MenuItem("&Connect", OnConnectNode_MenuItemClick);
MenuItem miDisconnect = new MenuItem("&Disconnect", OnDisconnectNode_MenuItemClick);
MenuItem miSep = new MenuItem("-");
MenuItem miEditGroups = new MenuItem("Change &Group Memberships...", OnEditMembership_MenuItemClick);
MenuItem miRemove = new MenuItem("&Remove Host", OnRemoveNode_MenuItemClick);
MenuItem[] menuItems;
if (ContextSlave != null)
{
miConnect.Enabled = ContextSlave.IsDisconnected;
miDisconnect.Enabled = !ContextSlave.IsDisconnected;
menuItems = new MenuItem[] {
miConnect,
miDisconnect,
miSep,
miEditGroups,
miRemove
};
}
else if (ContextGroup != null)
{
miRemove.Text = "&Remove Group";
miConnect.Enabled = ContextGroup.CanConnect;
miDisconnect.Enabled = ContextGroup.CanDisconnect;
menuItems = new MenuItem[] {
miConnect,
miDisconnect,
miSep,
miRemove
};
}
else if (e.Node == HostNodes)
{
MenuItem miAdd = new MenuItem("&Add Host", addHostStripMenuItem_Click);
menuItems = new MenuItem[] {
miAdd
};
}
else if (e.Node == GroupNodes)
{
MenuItem miAdd = new MenuItem("&Add Group", addGroupToolStripMenuItem_Click);
menuItems = new MenuItem[] {
miAdd
};
}
else
{
return;
}
ContextMenu buttonMenu = new ContextMenu(menuItems);
buttonMenu.Show(ComputerTree, MousePos);
}
