Start of added (more than just a VPN) features.

.gitignore

@@ -1 +1,4 @@
 *~
+output.log
+bin/
+hamncheese/export_presets.cfg

edit.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+sudo godot/bin/godot.linuxbsd.editor.x86_64 --editor --path hamncheese | tee output.log
+

hamncheese/main.gd

@@ -1,6 +1,8 @@
 extends Control
 
 
+const SERVER_PORT      = 10042
+
 const FILE_ID_SETTINGS = 0
 const FILE_ID_EXIT     = 2
 
@@ -10,6 +12,7 @@ const HELP_ID_MANUAL   = 1
 
 @onready var online_check_button = %OnlineCheckButton
 @onready var my_ip_label         = %MyIPLabel
+@onready var peers_tree          = %PeersTree
 
 @onready var settings_window            = %SettingsWindow
 @onready var user_name_line_edit        = %UserNameLineEdit
@@ -30,6 +33,45 @@ const HELP_ID_MANUAL   = 1
 var net;
 
 
+func _go_offline():
+	#***TODO*** This can take some time.  Show a message.
+	Peers.stop_server()
+	net.stop_network()
+	Peers.clear()
+	peers_tree.clear()
+
+	
+func _go_online():
+	net.reset_configuration()
+	net.set_addresses("" if ip_check_button.button_pressed else ip_line_edit.text, "" if mac_check_button.button_pressed else mac_line_edit.text)
+	net.set_compression(compression_check_button.button_pressed)
+	net.set_network(user_name_line_edit.text, network_name_line_edit.text, network_password_line_edit.text)
+	net.set_supernode(server_line_edit.text, server_port_spin_box.value)
+	var result = net.start_network()
+	if result < 0:
+		# Something is wrong.  Cancel starting network.
+		online_check_button.set_pressed_no_signal(false)
+		# Tell them what happened.
+		var message = "An unknown error occurred.  Code:  " + str(result)
+		match result:
+			-1:
+				message = "Invalid edge confguration."
+			-2:
+				message = "Failed to create interface.  Are you running as "
+				if OS.get_name() == "Windows":
+					message = message + "Administrator?"
+				else:
+					message = message + "root?"
+			-3:
+				message = "Failed to initialize edge node."
+		Dialog.alert("Error Starting Network", message)
+	else:
+		# Successful connection.
+		var userInfo = {}
+		userInfo["user"] = user_name_line_edit.text
+		Peers.start_server(net.get_ip(), SERVER_PORT, userInfo)
+		
+
 func _notification(what):
 	# Window manager requested app close.
 	if what == NOTIFICATION_WM_CLOSE_REQUEST:
@@ -52,8 +94,6 @@ func _on_file_id_pressed(id):
 			
 		FILE_ID_EXIT:
 			_show_exit_dialog()
-			#get_tree().root.propagate_notification(NOTIFICATION_WM_CLOSE_REQUEST)
-			#SceneTree.quit()
 
 
 func _on_help_id_pressed(id):
@@ -78,19 +118,9 @@ func _on_manual_window_close_requested():
 func _on_online_check_button_toggled(button_pressed):
 	# Go online or offline.
 	if button_pressed:
-		net.reset_configuration()
-		net.set_addresses("" if ip_check_button.button_pressed else ip_line_edit.text, "" if mac_check_button.button_pressed else mac_line_edit.text)
-		net.set_compression(compression_check_button.button_pressed)
-		net.set_network(user_name_line_edit.text, network_name_line_edit.text, network_password_line_edit.text)
-		net.set_supernode(server_line_edit.text, server_port_spin_box.value)
-		var result = net.start_network()
-		if result < 0:
-			# Something is wrong.  Cancel starting network.
-			online_check_button.set_pressed_no_signal(false)
-			# Tell them what happened.
-			
+		_go_online()
 	else:
-		net.stop_network()
+		_go_offline()
 
 
 func _on_save_settings_button_pressed():
@@ -122,13 +152,17 @@ func _on_timer_timeout():
 		my_ip_label.text = net.get_ip()
 		# Update list of known peers.
 		var peers = net.get_peers()
-		#for peer in peers:
-		#	print_debug("Type: ", peer["type"], "  IP: ", peer["ip"])
+		if Peers.update(peers):
+			# Redraw peer tree.
+			peers_tree.clear()
+			for peer in Peers.peerArray:
+				var child = peers_tree.create_item(peers_tree.get_root())
+				child.set_text(0, peer["user"] + "  (" + peer["ip"] + ")")
 	else:
 		# Clear network information.
 		my_ip_label.text = ""
-
-
+		
+		
 func _ready():
 	# Get our network object.
 	net = N2NVPN.new()
@@ -175,9 +209,9 @@ func _show_exit_dialog():
 	var message = "Are you sure you wish to exit?"
 	if online_check_button.button_pressed:
 		message = message + "\n\nThis will disconnect you from the network!\n"
-	var result = await Global.confirm("Exit", message)
+	var result = await Dialog.confirm("Exit", message)
 	if result:
 		if online_check_button.button_pressed:
-			net.stop_network()
-		get_tree().quit()
+			_go_offline()
+		Engine.get_main_loop().quit()
 

hamncheese/main.tscn

@@ -13,9 +13,11 @@ script = ExtResource("1_ojpam")
 
 [node name="VBoxContainer" type="VBoxContainer" parent="."]
 layout_mode = 1
-anchors_preset = 10
+anchors_preset = 15
 anchor_right = 1.0
+anchor_bottom = 1.0
 grow_horizontal = 2
+grow_vertical = 2
 metadata/_edit_use_anchors_ = true
 
 [node name="HBoxContainer" type="HBoxContainer" parent="VBoxContainer"]
@@ -24,6 +26,7 @@ size_flags_vertical = 0
 
 [node name="MenuBar" type="MenuBar" parent="VBoxContainer/HBoxContainer"]
 layout_mode = 2
+size_flags_horizontal = 3
 size_flags_vertical = 0
 
 [node name="File" type="PopupMenu" parent="VBoxContainer/HBoxContainer/MenuBar"]
@@ -43,18 +46,32 @@ item_0/id = 0
 item_1/text = "Manual..."
 item_1/id = 1
 
-[node name="MyIPLabel" type="Label" parent="VBoxContainer/HBoxContainer"]
-unique_name_in_owner = true
-layout_mode = 2
-size_flags_horizontal = 3
-horizontal_alignment = 1
-
 [node name="OnlineCheckButton" type="CheckButton" parent="VBoxContainer/HBoxContainer"]
 unique_name_in_owner = true
 layout_mode = 2
 size_flags_horizontal = 8
 text = "Online"
 
+[node name="MyIPLabel" type="Label" parent="VBoxContainer"]
+unique_name_in_owner = true
+layout_mode = 2
+size_flags_horizontal = 3
+horizontal_alignment = 1
+
+[node name="MarginContainer" type="MarginContainer" parent="VBoxContainer"]
+layout_mode = 2
+size_flags_vertical = 3
+theme_override_constants/margin_left = 20
+theme_override_constants/margin_top = 20
+theme_override_constants/margin_right = 20
+theme_override_constants/margin_bottom = 20
+
+[node name="PeersTree" type="Tree" parent="VBoxContainer/MarginContainer"]
+unique_name_in_owner = true
+layout_mode = 2
+hide_folding = true
+hide_root = true
+
 [node name="SettingsWindow" type="Window" parent="."]
 unique_name_in_owner = true
 title = "Settings"

hamncheese/peers.gd

@@ -0,0 +1,140 @@
+extends Node
+
+
+var _server := UDPServer.new()
+var _userInfo: Dictionary
+var _pendingPackets: Array
+var _metadataTimer: Timer
+
+# This array is of dictionary elements that contain:
+#	"online":	Will be true except when used to update the array.
+#	"type":		Either "pending" or "known", which is confusing.
+#	"ip":		IP address of this peer.
+#	"user":		User name on this IP.
+#	"refresh":	Do we need to redraw this entry?
+var peerArray: Array
+
+
+func _metadataTimerTimeout():
+	if _server.is_listening():
+		var method = {}
+		# Request updated metadata from everyone on the network.
+		method["method"] = "query"
+		for peer in peerArray:
+			_sendTo(peer["ip"], method)
+	
+	
+func _process(_delta):
+	if _server.is_listening():
+		# Handle incoming data.
+		_server.poll()
+		if _server.is_connection_available():
+			var client: PacketPeerUDP = _server.take_connection()
+			var packet   = client.get_packet()
+			var clientIP = client.get_packet_ip()
+			var raw      = packet.get_string_from_utf8()
+			var jsonIn   = JSON.new()
+			var error    = jsonIn.parse(raw)
+			if error == OK:
+				# Remote node wants our information.
+				if jsonIn.data["method"] == "query":
+					var payload = {}
+					payload["method"] = "queryResponse"
+					payload["user"]   = _userInfo["user"]
+					client.put_packet(JSON.stringify(payload).to_utf8_buffer())
+				# Remote node replied to our query.
+				if jsonIn.data["method"] == "queryResponse":
+					for i in range(0, peerArray.size() - 1):
+						if peerArray[i]["ip"] == clientIP:
+							peerArray[i]["user"]    = jsonIn.data["user"]
+							peerArray[i]["refresh"] = true
+							break
+			client.close()
+			# Handle outgoing data.
+			for outbound in _pendingPackets:
+				var destination := PacketPeerUDP.new()
+				destination.connect_to_host(outbound["ip"], _server.get_local_port())
+				destination.put_packet(JSON.stringify(outbound["message"]).to_utf8_buffer())
+				destination.close()
+			_pendingPackets.clear()
+			
+			
+func _ready():
+	clear()
+	_metadataTimer = Timer.new()
+	_metadataTimer.timeout.connect(_metadataTimerTimeout)
+	Engine.get_main_loop().current_scene.add_child(_metadataTimer)
+	_metadataTimer.start(5)
+
+
+func _sendTo(ipAddress, message):
+	var pending = {}
+	pending["ip"]      = ipAddress
+	pending["message"] = message
+	_pendingPackets.append(pending)
+	
+
+func clear():
+	peerArray.clear()
+
+	
+func start_server(address, port, userInfo):
+	_userInfo = userInfo
+	if !_server.is_listening():
+		_server.listen(port, address)
+		_pendingPackets.clear()
+
+
+func stop_server():
+	if _server.is_listening():
+		_server.stop()
+		
+	
+func update(peers: Array):
+	var changed = false
+	var found
+	
+	# Mark everyone as offline.
+	for i in range(0, peerArray.size() - 1):
+		peerArray[i]["online"] = false
+	
+	# Now go through everyone we know is connected and mark them online and update their type.
+	for peerEntry in peers:
+		found = false
+		for i in range(0, peerArray.size() - 1):
+			if peerEntry["ip"] == peerArray[i]["ip"]:
+				peerArray[i]["online"] = true
+				if peerArray[i]["type"] != peerEntry["type"]:
+					peerArray[i]["type"] = peerEntry["type"]
+					changed = true
+				found = true
+				break
+		# Is this a new entry?
+		if !found:
+			var newPeer = peerEntry
+			# Add all dictionary elements except "ip" and "type".
+			newPeer["user"]    = ""
+			newPeer["online"]  = true
+			newPeer["refresh"] = false
+			peerArray.append(newPeer)
+			changed = true
+	
+	# Delete everyone that is offline.
+	found = true
+	while found:
+		found = false
+		for i in range(0, peerArray.size() - 1):
+			if peerArray[i]["online"] == false:
+				found = true
+				peerArray.remove_at(i)
+				changed = true
+				break
+
+	# Do we need to redraw the list?
+	for i in range(0, peerArray.size() - 1):
+		if peerArray[i]["refresh"] == true:
+			peerArray[i]["refresh"] = false
+			changed = true
+
+	# Did the array change?
+	return changed

hamncheese/project.godot

@@ -20,7 +20,9 @@ config/icon="res://icon.svg"
 
 [autoload]
 
-Global="*res://global.gd"
+Dialog="*res://dialog.gd"
+Util="*res://util.gd"
+Peers="*res://peers.gd"
 
 [display]
 

hamncheese/util.gd

@@ -0,0 +1,7 @@
+extends Node
+
+
+func delete_children(node):
+	for n in node.get_children():
+		node.remove_child(n)
+		n.queue_free()