diff --git a/README.md b/README.md
index fc57856..5067d06 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,54 @@
-# webrtc_signaling
+This is modified version of https://github.com/godotengine/godot-demo-projects/tree/master/networking/webrtc_signaling
+It adds ability for dynamic lobby host swap and ability to say should lobby have only 1 host...
+
+# A WebSocket signaling server/client for WebRTC.
+
+This demo is devided in 4 parts:
+
+- The `server` folder contains the signaling server implementation written in GDScript (so it can be run by a game server running Godot)
+- The `server_node` folder contains the signaling server implementation written in Node.js (if you don't plan to run a game server but only match-making).
+- The `client` part contains the client implementation in GDScript.
+ - Itself divided into raw protocol and `WebRTCMultiplayer` handling.
+- The `demo` contains a small app that uses it.
+
+**NOTE**: You must extract the [latest version](https://github.com/godotengine/webrtc-native/releases) of the WebRTC GDNative plugin in the project folder to run from desktop.
+
+Language: GDScript
+
+Renderer: GLES 2
+
+Check out this demo on the asset library: https://godotengine.org/asset-library/asset/537
+
+## Protocol
+
+The protocol is JSON based, and uses messages in the form:
+
+```
+{
+ "id": "number",
+ "type": "number",
+ "data": "string",
+}
+```
+
+With `type` being the message type, `id` being a connected peer or `0`, and `data` being the message specific data.
+
+Messages are the following:
+
+- `0 = JOIN`, must be sent by client immediately after connection to get a lobby assigned or join a known one (via the `data` field).
+ This messages is also sent by server back to the client to notify the assigned lobby, or simply a successful join.
+- `1 = ID`, sent by server to identify the client when it joins a room (the `id` field will contain the be assigned ID).
+- `2 = PEER_CONNECT`, sent by server to notify new peers in the same lobby (the `id` field will contain the ID of the new peer).
+- `3 = PEER_DISCONNECT`, sent by server to notify when a peer in the same lobby disconnects (the `id` field will contain the ID of the disconnected peer).
+- `4 = OFFER`, sent by the client when creating a WebRTC offer then relayed back by the server to the destination peer.
+- `5 = ANSWER`, sent by the client when creating a WebRTC answer then relayed back by the server to the destination peer.
+- `6 = CANDIDATE`, sent by the client when generating new WebRTC candidates then relayed back by the server to the destination peer.
+- `7 = SEAL`, sent by client to seal the lobby (only the client that created it is allowed to seal a lobby), and then back by the server to notify success.
+ When a lobby is sealed, no new client will be able to join, and the lobby will be destroyed (and clients disconnected) after 10 seconds.
+
+For relayed messages (i.e. for `OFFER`, `ANSWER`, and `CANDIDATE`), the client will set the `id` field as the destination peer, then the server will replace it with the id of the sending peer, and send it to the proper destination.
+
+## Screenshots
+
+
diff --git a/client/multiplayer_client.gd b/client/multiplayer_client.gd
new file mode 100644
index 0000000..059fa3d
--- /dev/null
+++ b/client/multiplayer_client.gd
@@ -0,0 +1,109 @@
+extends "ws_webrtc_client.gd"
+
+var rtc_mp: WebRTCMultiplayerPeer = WebRTCMultiplayerPeer.new()
+var sealed := false
+
+func _init():
+ connected.connect(self._connected)
+ disconnected.connect(self._disconnected)
+
+ offer_received.connect(self._offer_received)
+ answer_received.connect(self._answer_received)
+ candidate_received.connect(self._candidate_received)
+
+ lobby_joined.connect(self._lobby_joined)
+ lobby_sealed.connect(self._lobby_sealed)
+ peer_connected.connect(self._peer_connected)
+ peer_disconnected.connect(self._peer_disconnected)
+
+
+func start(url, lobby = "", mesh:=true):
+ stop()
+ sealed = false
+ self.mesh = mesh
+ self.lobby = lobby
+ connect_to_url(url)
+
+
+func stop():
+ multiplayer.multiplayer_peer = null
+ rtc_mp.close()
+ close()
+
+
+func _create_peer(id, host_id):
+ var peer: WebRTCPeerConnection = WebRTCPeerConnection.new()
+ peer.initialize({
+ "iceServers": [ { "urls": ["stun:stun.l.google.com:19302","stun:tun.hoiio.com:3478","stun:stun.voip.aebc.com:3478","stun.services.mozilla.com:3478"] } ]
+ })
+ peer.session_description_created.connect(self._offer_created.bind(id))
+ peer.ice_candidate_created.connect(self._new_ice_candidate.bind(id))
+ rtc_mp.add_peer(peer, id)
+ print("Is peer host: %s" % [host_id != rtc_mp.get_unique_id()])
+ if id < rtc_mp.get_unique_id(): # So only one peer creates offers.
+ peer.create_offer()
+ return peer
+
+
+func _new_ice_candidate(mid_name, index_name, sdp_name, id):
+ send_candidate(id, mid_name, index_name, sdp_name)
+
+
+func _offer_created(type, data, id):
+ if not rtc_mp.has_peer(id):
+ return
+ print("created ", type)
+ rtc_mp.get_peer(id).connection.set_local_description(type, data)
+ if type == "offer": send_offer(id, data)
+ else: send_answer(id, data)
+
+
+func _connected(id, use_mesh):
+ print("Connected %d, mesh: %s" % [id, use_mesh])
+ if use_mesh:
+ rtc_mp.create_mesh(id)
+ elif id == 1:
+ rtc_mp.create_server()
+ else:
+ rtc_mp.create_client(id)
+ multiplayer.multiplayer_peer = rtc_mp
+
+
+func _lobby_joined(lobby):
+ self.lobby = lobby
+
+
+func _lobby_sealed():
+ sealed = true
+
+
+func _disconnected():
+ print("Disconnected: %d: %s" % [code, reason])
+ if not sealed:
+ stop() # Unexpected disconnect
+
+
+func _peer_connected(id, host_id):
+ print("Peer connected %d" % id)
+ _create_peer(id, host_id)
+
+
+func _peer_disconnected(id):
+ if rtc_mp.has_peer(id): rtc_mp.remove_peer(id)
+
+
+func _offer_received(id, offer):
+ print("Got offer: %d" % id)
+ if rtc_mp.has_peer(id):
+ rtc_mp.get_peer(id).connection.set_remote_description("offer", offer)
+
+
+func _answer_received(id, answer):
+ print("Got answer: %d" % id)
+ if rtc_mp.has_peer(id):
+ rtc_mp.get_peer(id).connection.set_remote_description("answer", answer)
+
+
+func _candidate_received(id, mid, index, sdp):
+ if rtc_mp.has_peer(id):
+ rtc_mp.get_peer(id).connection.add_ice_candidate(mid, index, sdp)
diff --git a/client/ws_webrtc_client.gd b/client/ws_webrtc_client.gd
new file mode 100644
index 0000000..c5974bf
--- /dev/null
+++ b/client/ws_webrtc_client.gd
@@ -0,0 +1,122 @@
+extends Node
+
+enum Message {JOIN, ID, PEER_CONNECT, PEER_DISCONNECT, OFFER, ANSWER, CANDIDATE, SEAL}
+
+@export var autojoin := true
+@export var lobby := "" # Will create a new lobby if empty.
+@export var mesh := true # Will use the lobby host as relay otherwise.
+
+var ws: WebSocketPeer = WebSocketPeer.new()
+var code = 1000
+var reason = "Unknown"
+
+signal lobby_joined(lobby)
+signal connected(id, use_mesh)
+signal disconnected()
+signal peer_connected(id, host_id)
+signal peer_disconnected(id)
+signal offer_received(id, offer)
+signal answer_received(id, answer)
+signal candidate_received(id, mid, index, sdp)
+signal lobby_sealed()
+
+
+func connect_to_url(url):
+ close()
+ code = 1000
+ reason = "Unknown"
+ ws.connect_to_url(url)
+
+
+func close():
+ ws.close()
+
+
+func _process(delta):
+ var old_state: int = ws.get_ready_state()
+ if old_state == WebSocketPeer.STATE_CLOSED:
+ return
+ ws.poll()
+ var state = ws.get_ready_state()
+ if state != old_state and state == WebSocketPeer.STATE_OPEN and autojoin:
+ join_lobby(lobby)
+ while state == WebSocketPeer.STATE_OPEN and ws.get_available_packet_count():
+ if not _parse_msg():
+ print("Error parsing message from server.")
+ if state == WebSocketPeer.STATE_CLOSED:
+ code = ws.get_close_code()
+ reason = ws.get_close_reason()
+ disconnected.emit()
+
+
+func _parse_msg():
+ var parsed = JSON.parse_string(ws.get_packet().get_string_from_utf8())
+ if typeof(parsed) != TYPE_DICTIONARY or not parsed.has("type") or not parsed.has("id") or \
+ typeof(parsed.get("data")) != TYPE_STRING:
+ return false
+
+ var msg := parsed as Dictionary
+ if not str(msg.type).is_valid_int() or not str(msg.id).is_valid_int():
+ return false
+
+ var type := str(msg.type).to_int()
+ var src_id := str(msg.id).to_int()
+
+ if type == Message.ID:
+ connected.emit(src_id, msg.data)
+ elif type == Message.JOIN:
+ lobby_joined.emit(msg.data)
+ elif type == Message.SEAL:
+ lobby_sealed.emit()
+ elif type == Message.PEER_CONNECT:
+ # Client connected
+ peer_connected.emit(src_id, str(msg.data).to_int())
+ elif type == Message.PEER_DISCONNECT:
+ # Client connected
+ peer_disconnected.emit(src_id)
+ elif type == Message.OFFER:
+ # Offer received
+ offer_received.emit(src_id, msg.data)
+ elif type == Message.ANSWER:
+ # Answer received
+ answer_received.emit(src_id, msg.data)
+ elif type == Message.CANDIDATE:
+ # Candidate received
+ var candidate: PackedStringArray = msg.data.split("\n", false)
+ if candidate.size() != 3:
+ return false
+ if not candidate[1].is_valid_int():
+ return false
+ candidate_received.emit(src_id, candidate[0], candidate[1].to_int(), candidate[2])
+ else:
+ return false
+ return true # Parsed
+
+
+func join_lobby(lobby: String, single_host:=false):
+ var data = {"lobby":lobby,"single_host":single_host}
+ return _send_msg(Message.JOIN, 0 if mesh else 1, JSON.stringify(data))
+
+
+func seal_lobby():
+ return _send_msg(Message.SEAL, 0)
+
+
+func send_candidate(id, mid, index, sdp) -> int:
+ return _send_msg(Message.CANDIDATE, id, "\n%s\n%d\n%s" % [mid, index, sdp])
+
+
+func send_offer(id, offer) -> int:
+ return _send_msg(Message.OFFER, id, offer)
+
+
+func send_answer(id, answer) -> int:
+ return _send_msg(Message.ANSWER, id, answer)
+
+
+func _send_msg(type: int, id: int, data:="") -> int:
+ return ws.send_text(JSON.stringify({
+ "type": type,
+ "id": id,
+ "data": data
+ }))
diff --git a/demo/client_ui.gd b/demo/client_ui.gd
new file mode 100644
index 0000000..8227b1f
--- /dev/null
+++ b/demo/client_ui.gd
@@ -0,0 +1,80 @@
+extends Control
+
+@onready var client = $Client
+@onready var host = $VBoxContainer/Connect/Host
+@onready var room = $VBoxContainer/Connect/RoomSecret
+@onready var mesh = $VBoxContainer/Connect/Mesh
+
+func _ready():
+ client.lobby_joined.connect(self._lobby_joined)
+ client.lobby_sealed.connect(self._lobby_sealed)
+ client.connected.connect(self._connected)
+ client.disconnected.connect(self._disconnected)
+
+ multiplayer.connected_to_server.connect(self._mp_server_connected)
+ multiplayer.connection_failed.connect(self._mp_server_disconnect)
+ multiplayer.server_disconnected.connect(self._mp_server_disconnect)
+ multiplayer.peer_connected.connect(self._mp_peer_connected)
+ multiplayer.peer_disconnected.connect(self._mp_peer_disconnected)
+
+
+@rpc("any_peer", "call_local")
+func ping(argument):
+ _log("[Multiplayer] Ping from peer %d: arg: %s" % [multiplayer.get_remote_sender_id(), argument])
+
+
+func _mp_server_connected():
+ _log("[Multiplayer] Server connected (I am %d)" % client.rtc_mp.get_unique_id())
+
+
+func _mp_server_disconnect():
+ _log("[Multiplayer] Server disconnected (I am %d)" % client.rtc_mp.get_unique_id())
+
+
+func _mp_peer_connected(id: int):
+ _log("[Multiplayer] Peer %d connected" % id)
+
+
+func _mp_peer_disconnected(id: int):
+ _log("[Multiplayer] Peer %d disconnected" % id)
+
+
+func _connected(id):
+ _log("[Signaling] Server connected with ID: %d" % id)
+
+
+func _disconnected():
+ _log("[Signaling] Server disconnected: %d - %s" % [client.code, client.reason])
+
+
+func _lobby_joined(lobby):
+ _log("[Signaling] Joined lobby %s" % lobby)
+
+
+func _lobby_sealed():
+ _log("[Signaling] Lobby has been sealed")
+
+
+func _log(msg):
+ print(msg)
+ $VBoxContainer/TextEdit.text += str(msg) + "\n"
+
+
+func _on_peers_pressed():
+ _log(multiplayer.get_peers())
+
+
+func _on_ping_pressed():
+ ping.rpc(randf())
+
+
+func _on_seal_pressed():
+ client.seal_lobby()
+
+
+func _on_start_pressed():
+ client.start(host.text, room.text, mesh.button_pressed)
+
+
+func _on_stop_pressed():
+ client.stop()
diff --git a/demo/client_ui.tscn b/demo/client_ui.tscn
new file mode 100644
index 0000000..623da91
--- /dev/null
+++ b/demo/client_ui.tscn
@@ -0,0 +1,83 @@
+[gd_scene load_steps=3 format=3 uid="uid://cpwp4xx6mv5p"]
+
+[ext_resource type="Script" path="res://demo/client_ui.gd" id="1"]
+[ext_resource type="Script" path="res://client/multiplayer_client.gd" id="2"]
+
+[node name="ClientUI" type="Control"]
+layout_mode = 3
+anchors_preset = 0
+offset_right = 1024.0
+offset_bottom = 600.0
+size_flags_horizontal = 3
+size_flags_vertical = 3
+script = ExtResource("1")
+
+[node name="Client" type="Node" parent="."]
+script = ExtResource("2")
+
+[node name="VBoxContainer" type="VBoxContainer" parent="."]
+layout_mode = 1
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+
+[node name="Connect" type="HBoxContainer" parent="VBoxContainer"]
+layout_mode = 2
+
+[node name="Label" type="Label" parent="VBoxContainer/Connect"]
+layout_mode = 2
+text = "Connect to:"
+
+[node name="Host" type="LineEdit" parent="VBoxContainer/Connect"]
+layout_mode = 2
+size_flags_horizontal = 3
+text = "ws://localhost:9080"
+
+[node name="Room" type="Label" parent="VBoxContainer/Connect"]
+layout_mode = 2
+size_flags_vertical = 5
+text = "Room"
+
+[node name="RoomSecret" type="LineEdit" parent="VBoxContainer/Connect"]
+layout_mode = 2
+placeholder_text = "secret"
+
+[node name="Mesh" type="CheckBox" parent="VBoxContainer/Connect"]
+layout_mode = 2
+button_pressed = true
+text = "Mesh"
+
+[node name="HBoxContainer" type="HBoxContainer" parent="VBoxContainer"]
+layout_mode = 2
+
+[node name="Start" type="Button" parent="VBoxContainer/HBoxContainer"]
+layout_mode = 2
+text = "Start"
+
+[node name="Stop" type="Button" parent="VBoxContainer/HBoxContainer"]
+layout_mode = 2
+text = "Stop"
+
+[node name="Seal" type="Button" parent="VBoxContainer/HBoxContainer"]
+layout_mode = 2
+text = "Seal"
+
+[node name="Ping" type="Button" parent="VBoxContainer/HBoxContainer"]
+layout_mode = 2
+text = "Ping"
+
+[node name="Peers" type="Button" parent="VBoxContainer/HBoxContainer"]
+layout_mode = 2
+text = "Print peers"
+
+[node name="TextEdit" type="TextEdit" parent="VBoxContainer"]
+layout_mode = 2
+size_flags_vertical = 3
+
+[connection signal="pressed" from="VBoxContainer/HBoxContainer/Start" to="." method="_on_start_pressed"]
+[connection signal="pressed" from="VBoxContainer/HBoxContainer/Stop" to="." method="_on_stop_pressed"]
+[connection signal="pressed" from="VBoxContainer/HBoxContainer/Seal" to="." method="_on_seal_pressed"]
+[connection signal="pressed" from="VBoxContainer/HBoxContainer/Ping" to="." method="_on_ping_pressed"]
+[connection signal="pressed" from="VBoxContainer/HBoxContainer/Peers" to="." method="_on_peers_pressed"]
diff --git a/demo/main.gd b/demo/main.gd
new file mode 100644
index 0000000..d416548
--- /dev/null
+++ b/demo/main.gd
@@ -0,0 +1,24 @@
+extends Control
+
+func _enter_tree():
+ for c in $VBoxContainer/Clients.get_children():
+ # So each child gets its own separate MultiplayerAPI.
+ get_tree().set_multiplayer(
+ MultiplayerAPI.create_default_interface(),
+ NodePath("%s/VBoxContainer/Clients/%s" % [get_path(), c.name])
+ )
+
+func _ready():
+ if OS.get_name() == "HTML5":
+ $VBoxContainer/Signaling.hide()
+
+
+func _on_listen_toggled(button_pressed):
+ if button_pressed:
+ $Server.listen(int($VBoxContainer/Signaling/Port.value))
+ else:
+ $Server.stop()
+
+
+func _on_LinkButton_pressed():
+ OS.shell_open("https://github.com/godotengine/webrtc-native/releases")
diff --git a/demo/main.tscn b/demo/main.tscn
new file mode 100644
index 0000000..aae6715
--- /dev/null
+++ b/demo/main.tscn
@@ -0,0 +1,71 @@
+[gd_scene load_steps=4 format=3 uid="uid://5p1bp2kcs0py"]
+
+[ext_resource type="Script" path="res://demo/main.gd" id="1"]
+[ext_resource type="PackedScene" uid="uid://cpwp4xx6mv5p" path="res://demo/client_ui.tscn" id="2"]
+[ext_resource type="Script" path="res://server/ws_webrtc_server.gd" id="3"]
+
+[node name="Control" type="Control"]
+layout_mode = 3
+anchor_left = 0.0136719
+anchor_top = 0.0166667
+anchor_right = 0.986328
+anchor_bottom = 0.983333
+script = ExtResource("1")
+
+[node name="VBoxContainer" type="VBoxContainer" parent="."]
+layout_mode = 0
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+
+[node name="Signaling" type="HBoxContainer" parent="VBoxContainer"]
+layout_mode = 2
+
+[node name="Label" type="Label" parent="VBoxContainer/Signaling"]
+layout_mode = 2
+text = "Signaling server:"
+
+[node name="Port" type="SpinBox" parent="VBoxContainer/Signaling"]
+layout_mode = 2
+min_value = 1025.0
+max_value = 65535.0
+value = 9080.0
+
+[node name="ListenButton" type="Button" parent="VBoxContainer/Signaling"]
+layout_mode = 2
+toggle_mode = true
+text = "Listen"
+
+[node name="CenterContainer" type="CenterContainer" parent="VBoxContainer/Signaling"]
+layout_mode = 2
+size_flags_horizontal = 3
+size_flags_vertical = 3
+
+[node name="LinkButton" type="LinkButton" parent="VBoxContainer/Signaling/CenterContainer"]
+layout_mode = 2
+text = "Make sure to download the GDNative WebRTC Plugin and place it in the project folder"
+
+[node name="Clients" type="GridContainer" parent="VBoxContainer"]
+layout_mode = 2
+size_flags_horizontal = 3
+size_flags_vertical = 3
+columns = 2
+
+[node name="ClientUI" parent="VBoxContainer/Clients" instance=ExtResource("2")]
+layout_mode = 2
+
+[node name="ClientUI2" parent="VBoxContainer/Clients" instance=ExtResource("2")]
+layout_mode = 2
+
+[node name="ClientUI3" parent="VBoxContainer/Clients" instance=ExtResource("2")]
+layout_mode = 2
+
+[node name="ClientUI4" parent="VBoxContainer/Clients" instance=ExtResource("2")]
+layout_mode = 2
+
+[node name="Server" type="Node" parent="."]
+script = ExtResource("3")
+
+[connection signal="toggled" from="VBoxContainer/Signaling/ListenButton" to="." method="_on_listen_toggled"]
+[connection signal="pressed" from="VBoxContainer/Signaling/CenterContainer/LinkButton" to="." method="_on_LinkButton_pressed"]
diff --git a/project.godot b/project.godot
new file mode 100644
index 0000000..0c29a9d
--- /dev/null
+++ b/project.godot
@@ -0,0 +1,34 @@
+; Engine configuration file.
+; It's best edited using the editor UI and not directly,
+; since the parameters that go here are not all obvious.
+;
+; Format:
+; [section] ; section goes between []
+; param=value ; assign values to parameters
+
+config_version=5
+
+[application]
+
+config/name="WebRTC Signaling Example"
+config/description="A WebSocket signaling server/client for WebRTC.
+This demo is devided in 4 parts.
+The protocol is text based, and composed by a command and possibly
+multiple payload arguments, each separated by a new line."
+config/tags=PackedStringArray("demo", "network", "official")
+run/main_scene="res://demo/main.tscn"
+config/features=PackedStringArray("4.2")
+
+[debug]
+
+gdscript/warnings/shadowed_variable=false
+gdscript/warnings/unused_argument=false
+
+[display]
+
+window/stretch/mode="canvas_items"
+window/stretch/aspect="expand"
+
+[network]
+
+modules/webrtc_gdnative_script="res://demo/webrtc/webrtc.gdns"
diff --git a/screenshots/.gdignore b/screenshots/.gdignore
new file mode 100644
index 0000000..e69de29
diff --git a/screenshots/screenshot.png b/screenshots/screenshot.png
new file mode 100644
index 0000000..5eb4935
Binary files /dev/null and b/screenshots/screenshot.png differ
diff --git a/server/ws_webrtc_server.gd b/server/ws_webrtc_server.gd
new file mode 100644
index 0000000..138e0cc
--- /dev/null
+++ b/server/ws_webrtc_server.gd
@@ -0,0 +1,231 @@
+extends Node
+
+enum Message {JOIN, ID, PEER_CONNECT, PEER_DISCONNECT, OFFER, ANSWER, CANDIDATE, SEAL}
+
+const TIMEOUT = 1000 # Unresponsive clients times out after 1 sec
+const SEAL_TIME = 10000 # A sealed room will be closed after this time
+const ALFNUM = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
+
+var _alfnum = ALFNUM.to_ascii_buffer()
+
+var rand: RandomNumberGenerator = RandomNumberGenerator.new()
+var lobbies: Dictionary = {}
+var tcp_server := TCPServer.new()
+var peers: Dictionary = {}
+
+class Peer extends RefCounted:
+ var id = -1
+ var lobby = ""
+ var time = Time.get_ticks_msec()
+ var ws = WebSocketPeer.new()
+
+
+ func _init(peer_id, tcp):
+ id = peer_id
+ ws.accept_stream(tcp)
+
+
+ func is_ws_open() -> bool:
+ return ws.get_ready_state() == WebSocketPeer.STATE_OPEN
+
+
+ func send(type: int, id: int, data:=""):
+ return ws.send_text(JSON.stringify({
+ "type": type,
+ "id": id,
+ "data": data,
+ }))
+
+
+class Lobby extends RefCounted:
+ var peers: = {}
+ var peers_order: = []
+ var host: int = -1
+ var sealed: bool = false
+ var time = 0
+ var mesh := true
+ var single_host := false
+
+ func _init(host_id: int, use_mesh: bool, is_single_host: bool):
+ host = host_id
+ mesh = use_mesh
+ single_host = is_single_host
+
+ func join(peer: Peer) -> bool:
+ if sealed: return false
+ if not peer.is_ws_open(): return false
+ peer.send(Message.ID, peer.id, "true" if mesh else "") #(1 if peer.id == host else peer.id)
+ for p in peers.values():
+ if not p.is_ws_open():
+ continue
+ if not mesh and p.id != host:
+ # Only host is visible when using client-server
+ continue
+ p.send(Message.PEER_CONNECT, peer.id, str(peers_order[0]))
+ peer.send(Message.PEER_CONNECT, p.id, str(peers_order[0]))
+ peers[peer.id] = peer
+ peers_order.append(peer.id)
+ return true
+
+
+ func leave(peer: Peer) -> bool:
+ if peers_order.has(peer.id):
+ peers_order.erase(peer.id)
+ if peers_order.size()>0 and !single_host:
+ host=peers_order[0]
+ if not peers.has(peer.id): return false
+ peers.erase(peer.id)
+ var close = false
+ if peer.id == host:
+ # The room host disconnected, will disconnect all peers.
+ close = true
+ if sealed: return close
+ # Notify other peers.
+ for p in peers.values():
+ if not p.is_ws_open():
+ continue
+ if close:
+ # Disconnect peers.
+ p.ws.close()
+ else:
+ # Notify disconnection.
+ p.send(Message.PEER_DISCONNECT, peer.id)
+ return close
+
+
+ func seal(peer_id: int) -> bool:
+ # Only host can seal the room.
+ if host != peer_id: return false
+ sealed = true
+ for p in peers.values():
+ if not p.is_ws_open():
+ continue
+ p.send(Message.SEAL, 0)
+ time = Time.get_ticks_msec()
+ peers.clear()
+ peers_order.clear()
+ return true
+
+
+func _process(delta):
+ poll()
+
+
+func listen(port):
+ stop()
+ rand.seed = Time.get_unix_time_from_system()
+ tcp_server.listen(port)
+
+
+func stop():
+ tcp_server.stop()
+ peers.clear()
+
+
+func poll():
+ if not tcp_server.is_listening():
+ return
+
+ if tcp_server.is_connection_available():
+ var id = randi() % (1 << 31)
+ peers[id] = Peer.new(id, tcp_server.take_connection())
+
+ # Poll peers.
+ var to_remove := []
+ for p in peers.values():
+ # Peers timeout.
+ if p.lobby == "" and Time.get_ticks_msec() - p.time > TIMEOUT:
+ p.ws.close()
+ p.ws.poll()
+ while p.is_ws_open() and p.ws.get_available_packet_count():
+ if not _parse_msg(p):
+ print("Parse message failed from peer %d" % p.id)
+ to_remove.push_back(p.id)
+ p.ws.close()
+ break
+ var state = p.ws.get_ready_state()
+ if state == WebSocketPeer.STATE_CLOSED:
+ print("Peer %d disconnected from lobby: '%s'" % [p.id, p.lobby])
+ # Remove from lobby (and lobby itself if host).
+ if lobbies.has(p.lobby) and lobbies[p.lobby].leave(p):
+ print("Deleted lobby %s" % p.lobby)
+ lobbies.erase(p.lobby)
+ # Remove from peers
+ to_remove.push_back(p.id)
+
+ # Lobby seal.
+ for k in lobbies:
+ if not lobbies[k].sealed:
+ continue
+ if lobbies[k].time + SEAL_TIME < Time.get_ticks_msec():
+ # Close lobby.
+ for p in lobbies[k].peers:
+ p.ws.close()
+ to_remove.push_back(p.id)
+
+ # Remove stale peers
+ for id in to_remove:
+ peers.erase(id)
+
+
+func _join_lobby(peer: Peer, lobby: String, mesh: bool, single_host:bool) -> bool:
+ if lobby == "":
+ for _i in range(0, 32):
+ lobby += char(_alfnum[rand.randi_range(0, ALFNUM.length()-1)])
+ lobbies[lobby] = Lobby.new(peer.id, mesh, single_host)
+ elif not lobbies.has(lobby):
+ return false
+ lobbies[lobby].join(peer)
+ peer.lobby = lobby
+ # Notify peer of its lobby
+ peer.send(Message.JOIN, 0, lobby)
+ print("Peer %d joined lobby: '%s'" % [peer.id, lobby])
+ return true
+
+
+func _parse_msg(peer: Peer) -> bool:
+ var pkt_str: String = peer.ws.get_packet().get_string_from_utf8()
+ var parsed = JSON.parse_string(pkt_str)
+ if typeof(parsed) != TYPE_DICTIONARY or not parsed.has("type") or not parsed.has("id") or \
+ typeof(parsed.get("data")) != TYPE_STRING:
+ return false
+ if not str(parsed.type).is_valid_int() or not str(parsed.id).is_valid_int():
+ return false
+
+ var msg := {
+ "type": str(parsed.type).to_int(),
+ "id": str(parsed.id).to_int(),
+ "data": parsed.data
+ }
+
+ if msg.type == Message.JOIN:
+ if peer.lobby: # Peer must not have joined a lobby already!
+ return false
+ var dt = JSON.parse_string(msg.data)
+ return _join_lobby(peer, dt.lobby, msg.id == 0, dt.single_host)
+
+ if not lobbies.has(peer.lobby): # Lobby not found?
+ return false
+
+ var lobby = lobbies[peer.lobby]
+
+ if msg.type == Message.SEAL:
+ # Client is sealing the room
+ return lobby.seal(peer.id)
+
+ var dest_id: int = msg.id
+ if dest_id == MultiplayerPeer.TARGET_PEER_SERVER:
+ dest_id = lobby.host
+
+ if not peers.has(dest_id): # Destination ID not connected
+ return false
+
+ if peers[dest_id].lobby != peer.lobby: # Trying to contact someone not in same lobby
+ return false
+
+ if msg.type in [Message.OFFER, Message.ANSWER, Message.CANDIDATE]:
+ var source = peer.id#MultiplayerPeer.TARGET_PEER_SERVER if peer.id == lobby.host else peer.id
+ peers[dest_id].send(msg.type, source, msg.data)
+ return true
+
+ return false # Unknown message
diff --git a/server_node/.eslintrc.js b/server_node/.eslintrc.js
new file mode 100644
index 0000000..199ba20
--- /dev/null
+++ b/server_node/.eslintrc.js
@@ -0,0 +1,52 @@
+module.exports = {
+ "env": {
+ "browser": true,
+ "es2021": true,
+ },
+ "extends": [
+ "airbnb-base",
+ ],
+ "parserOptions": {
+ "ecmaVersion": 12,
+ },
+ "ignorePatterns": "*.externs.js",
+ "rules": {
+ "no-console": "off",
+ "func-names": "off",
+ // Use tabs for consistency with the C++ codebase.
+ "indent": ["error", "tab"],
+ "max-len": "off",
+ "no-else-return": ["error", {allowElseIf: true}],
+ "curly": ["error", "all"],
+ "brace-style": ["error", "1tbs", { "allowSingleLine": false }],
+ "no-bitwise": "off",
+ "no-continue": "off",
+ "no-self-assign": "off",
+ "no-tabs": "off",
+ "no-param-reassign": ["error", { "props": false }],
+ "no-plusplus": "off",
+ "no-unused-vars": ["error", { "args": "none" }],
+ "prefer-destructuring": "off",
+ "prefer-rest-params": "off",
+ "prefer-spread": "off",
+ "camelcase": "off",
+ "no-underscore-dangle": "off",
+ "max-classes-per-file": "off",
+ "prefer-arrow-callback": "off",
+ // Messes up with copyright headers in source files.
+ "spaced-comment": "off",
+ // Completely breaks emscripten libraries.
+ "object-shorthand": "off",
+ // Closure compiler (exported properties)
+ "quote-props": ["error", "consistent"],
+ "dot-notation": "off",
+ // No comma dangle for functions (it's madness, and ES2017)
+ "comma-dangle": ["error", {
+ "arrays": "always-multiline",
+ "objects": "always-multiline",
+ "imports": "always-multiline",
+ "exports": "always-multiline",
+ "functions": "never"
+ }],
+ }
+};
diff --git a/server_node/.gitignore b/server_node/.gitignore
new file mode 100644
index 0000000..c2658d7
--- /dev/null
+++ b/server_node/.gitignore
@@ -0,0 +1 @@
+node_modules/
diff --git a/server_node/package-lock.json b/server_node/package-lock.json
new file mode 100644
index 0000000..2b6ff22
--- /dev/null
+++ b/server_node/package-lock.json
@@ -0,0 +1,36 @@
+{
+ "name": "signaling_server",
+ "version": "1.0.0",
+ "lockfileVersion": 3,
+ "requires": true,
+ "packages": {
+ "": {
+ "name": "signaling_server",
+ "version": "1.0.0",
+ "license": "MIT",
+ "dependencies": {
+ "ws": "^7.5.9"
+ }
+ },
+ "node_modules/ws": {
+ "version": "7.5.9",
+ "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.9.tgz",
+ "integrity": "sha512-F+P9Jil7UiSKSkppIiD94dN07AwvFixvLIj1Og1Rl9GGMuNipJnV9JzjD6XuqmAeiswGvUmNLjr5cFuXwNS77Q==",
+ "engines": {
+ "node": ">=8.3.0"
+ },
+ "peerDependencies": {
+ "bufferutil": "^4.0.1",
+ "utf-8-validate": "^5.0.2"
+ },
+ "peerDependenciesMeta": {
+ "bufferutil": {
+ "optional": true
+ },
+ "utf-8-validate": {
+ "optional": true
+ }
+ }
+ }
+ }
+}
diff --git a/server_node/package.json b/server_node/package.json
new file mode 100644
index 0000000..0e6cdf4
--- /dev/null
+++ b/server_node/package.json
@@ -0,0 +1,20 @@
+{
+ "name": "signaling_server",
+ "version": "1.0.0",
+ "description": "",
+ "main": "server.js",
+ "dependencies": {
+ "ws": "^7.5.9"
+ },
+ "devDependencies": {
+ "eslint": "^8.28.0",
+ "eslint-config-airbnb-base": "^14.2.1",
+ "eslint-plugin-import": "^2.23.4"
+ },
+ "scripts": {
+ "lint": "eslint server.js && echo \"Lint OK\" && exit 0",
+ "format": "eslint server.js --fix && echo \"Lint OK\" && exit 0"
+ },
+ "author": "Fabio Alessandrelli",
+ "license": "MIT"
+}
diff --git a/server_node/server.js b/server_node/server.js
new file mode 100644
index 0000000..064c5f4
--- /dev/null
+++ b/server_node/server.js
@@ -0,0 +1,297 @@
+const WebSocket = require('ws');
+const crypto = require('crypto');
+
+const MAX_PEERS = 4096;
+const MAX_LOBBIES = 1024;
+const PORT = 9080;
+const ALFNUM = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
+
+const NO_LOBBY_TIMEOUT = 1000;
+const SEAL_CLOSE_TIMEOUT = 10000;
+const PING_INTERVAL = 10000;
+
+const STR_NO_LOBBY = 'Have not joined lobby yet';
+const STR_HOST_DISCONNECTED = 'Room host has disconnected';
+const STR_ONLY_HOST_CAN_SEAL = 'Only host can seal the lobby';
+const STR_SEAL_COMPLETE = 'Seal complete';
+const STR_TOO_MANY_LOBBIES = 'Too many lobbies open, disconnecting';
+const STR_ALREADY_IN_LOBBY = 'Already in a lobby';
+const STR_LOBBY_DOES_NOT_EXISTS = 'Lobby does not exists';
+const STR_LOBBY_IS_SEALED = 'Lobby is sealed';
+const STR_INVALID_FORMAT = 'Invalid message format';
+const STR_NEED_LOBBY = 'Invalid message when not in a lobby';
+const STR_SERVER_ERROR = 'Server error, lobby not found';
+const STR_INVALID_DEST = 'Invalid destination';
+const STR_INVALID_CMD = 'Invalid command';
+const STR_TOO_MANY_PEERS = 'Too many peers connected';
+const STR_INVALID_TRANSFER_MODE = 'Invalid transfer mode, must be text';
+
+const CMD = {
+ JOIN: 0, // eslint-disable-line sort-keys
+ ID: 1, // eslint-disable-line sort-keys
+ PEER_CONNECT: 2, // eslint-disable-line sort-keys
+ PEER_DISCONNECT: 3, // eslint-disable-line sort-keys
+ OFFER: 4, // eslint-disable-line sort-keys
+ ANSWER: 5, // eslint-disable-line sort-keys
+ CANDIDATE: 6, // eslint-disable-line sort-keys
+ SEAL: 7, // eslint-disable-line sort-keys
+};
+
+function randomInt(low, high) {
+ return Math.floor(Math.random() * (high - low + 1) + low);
+}
+
+function randomId() {
+ return Math.abs(new Int32Array(crypto.randomBytes(4).buffer)[0]);
+}
+
+function randomSecret() {
+ let out = '';
+ for (let i = 0; i < 16; i++) {
+ out += ALFNUM[randomInt(0, ALFNUM.length - 1)];
+ }
+ return out;
+}
+
+function ProtoMessage(type, id, data) {
+ return JSON.stringify({
+ 'type': type,
+ 'id': id,
+ 'data': data || '',
+ });
+}
+
+const wss = new WebSocket.Server({ port: PORT });
+
+class ProtoError extends Error {
+ constructor(code, message) {
+ super(message);
+ this.code = code;
+ }
+}
+
+class Peer {
+ constructor(id, ws) {
+ this.id = id;
+ this.ws = ws;
+ this.lobby = '';
+ // Close connection after 1 sec if client has not joined a lobby
+ this.timeout = setTimeout(() => {
+ if (!this.lobby) {
+ ws.close(4000, STR_NO_LOBBY);
+ }
+ }, NO_LOBBY_TIMEOUT);
+ }
+}
+
+class Lobby {
+ constructor(name, host, mesh, single_host) {
+ this.name = name;
+ this.host = host;
+ this.mesh = mesh;
+ this.single_host = single_host;
+ this.peers = [];
+ this.sealed = false;
+ this.closeTimer = -1;
+ }
+
+ getPeerId(peer) {
+ return peer.id;
+ }
+
+ join(peer) {
+ const assigned = this.getPeerId(peer);
+ peer.ws.send(ProtoMessage(CMD.ID, assigned, this.mesh ? 'true' : ''));
+ this.peers.forEach((p) => {
+ p.ws.send(ProtoMessage(CMD.PEER_CONNECT, assigned));
+ peer.ws.send(ProtoMessage(CMD.PEER_CONNECT, this.getPeerId(p)));
+ });
+ this.peers.push(peer);
+ }
+
+ leave(peer) {
+ const idx = this.peers.findIndex((p) => peer === p);
+ if (idx === -1) {
+ return false;
+ }
+ if (this.peers.length>1 && !this.single_host) {
+ this.host=this.getPeerId(this.peers[1])
+ }
+ const assigned = this.getPeerId(peer);
+ const close = assigned === this.host;
+ this.peers.forEach((p) => {
+ if (close) { // Room host disconnected, must close.
+ p.ws.close(4000, STR_HOST_DISCONNECTED);
+ } else { // Notify peer disconnect.
+ p.ws.send(ProtoMessage(CMD.PEER_DISCONNECT, assigned));
+ }
+ });
+ this.peers.splice(idx, 1);
+ if (close && this.closeTimer >= 0) {
+ // We are closing already.
+ clearTimeout(this.closeTimer);
+ this.closeTimer = -1;
+ }
+ return close;
+ }
+
+ seal(peer) {
+ // Only host can seal
+ if (peer.id !== this.host) {
+ throw new ProtoError(4000, STR_ONLY_HOST_CAN_SEAL);
+ }
+ this.sealed = true;
+ this.peers.forEach((p) => {
+ p.ws.send(ProtoMessage(CMD.SEAL, 0));
+ });
+ console.log(`Peer ${peer.id} sealed lobby ${this.name} `
+ + `with ${this.peers.length} peers`);
+ this.closeTimer = setTimeout(() => {
+ // Close peer connection to host (and thus the lobby)
+ this.peers.forEach((p) => {
+ p.ws.close(1000, STR_SEAL_COMPLETE);
+ });
+ }, SEAL_CLOSE_TIMEOUT);
+ }
+}
+
+const lobbies = new Map();
+let peersCount = 0;
+
+function joinLobby(peer, pLobby, mesh, single_host) {
+ let lobbyName = pLobby;
+ if (lobbyName === '') {
+ if (lobbies.size >= MAX_LOBBIES) {
+ throw new ProtoError(4000, STR_TOO_MANY_LOBBIES);
+ }
+ // Peer must not already be in a lobby
+ if (peer.lobby !== '') {
+ throw new ProtoError(4000, STR_ALREADY_IN_LOBBY);
+ }
+ lobbyName = randomSecret();
+ lobbies.set(lobbyName, new Lobby(lobbyName, peer.id, mesh, single_host));
+ console.log(`Peer ${peer.id} created lobby ${lobbyName}`);
+ console.log(`Open lobbies: ${lobbies.size}`);
+ }
+ const lobby = lobbies.get(lobbyName);
+ if (!lobby) {
+ throw new ProtoError(4000, STR_LOBBY_DOES_NOT_EXISTS);
+ }
+ if (lobby.sealed) {
+ throw new ProtoError(4000, STR_LOBBY_IS_SEALED);
+ }
+ peer.lobby = lobbyName;
+ console.log(`Peer ${peer.id} joining lobby ${lobbyName} `
+ + `with ${lobby.peers.length} peers`);
+ lobby.join(peer);
+ peer.ws.send(ProtoMessage(CMD.JOIN, 0, lobbyName));
+}
+
+function parseMsg(peer, msg) {
+ let json = null;
+ try {
+ json = JSON.parse(msg);
+ } catch (e) {
+ throw new ProtoError(4000, STR_INVALID_FORMAT);
+ }
+
+ const type = typeof (json['type']) === 'number' ? Math.floor(json['type']) : -1;
+ const id = typeof (json['id']) === 'number' ? Math.floor(json['id']) : -1;
+ const data = typeof (json['data']) === 'string' ? json['data'] : '';
+
+ if (type < 0 || id < 0) {
+ throw new ProtoError(4000, STR_INVALID_FORMAT);
+ }
+
+ // Lobby joining.
+ if (type === CMD.JOIN) {
+ const dt = JSON.parse(data);
+ joinLobby(peer, dt['lobby'], id === 0, dt['single_host']);
+ return;
+ }
+
+ if (!peer.lobby) {
+ throw new ProtoError(4000, STR_NEED_LOBBY);
+ }
+ const lobby = lobbies.get(peer.lobby);
+ if (!lobby) {
+ throw new ProtoError(4000, STR_SERVER_ERROR);
+ }
+
+ // Lobby sealing.
+ if (type === CMD.SEAL) {
+ lobby.seal(peer);
+ return;
+ }
+
+ // Message relaying format:
+ //
+ // {
+ // "type": CMD.[OFFER|ANSWER|CANDIDATE],
+ // "id": DEST_ID,
+ // "data": PAYLOAD
+ // }
+ if (type === CMD.OFFER || type === CMD.ANSWER || type === CMD.CANDIDATE) {
+ let destId = id;
+ if (id === 1) {
+ destId = lobby.host;
+ }
+ const dest = lobby.peers.find((e) => e.id === destId);
+ // Dest is not in this room.
+ if (!dest) {
+ throw new ProtoError(4000, STR_INVALID_DEST);
+ }
+ dest.ws.send(ProtoMessage(type, lobby.getPeerId(peer), data));
+ return;
+ }
+ throw new ProtoError(4000, STR_INVALID_CMD);
+}
+
+wss.on('connection', (ws) => {
+ if (peersCount >= MAX_PEERS) {
+ ws.close(4000, STR_TOO_MANY_PEERS);
+ return;
+ }
+ peersCount++;
+ const id = randomId();
+ const peer = new Peer(id, ws);
+ ws.on('message', (message) => {
+ if (typeof message !== 'string') {
+ ws.close(4000, STR_INVALID_TRANSFER_MODE);
+ return;
+ }
+ try {
+ parseMsg(peer, message);
+ } catch (e) {
+ const code = e.code || 4000;
+ console.log(`Error parsing message from ${id}:\n${
+ message}`);
+ ws.close(code, e.message);
+ }
+ });
+ ws.on('close', (code, reason) => {
+ peersCount--;
+ console.log(`Connection with peer ${peer.id} closed `
+ + `with reason ${code}: ${reason}`);
+ if (peer.lobby && lobbies.has(peer.lobby)
+ && lobbies.get(peer.lobby).leave(peer)) {
+ lobbies.delete(peer.lobby);
+ console.log(`Deleted lobby ${peer.lobby}`);
+ console.log(`Open lobbies: ${lobbies.size}`);
+ peer.lobby = '';
+ }
+ if (peer.timeout >= 0) {
+ clearTimeout(peer.timeout);
+ peer.timeout = -1;
+ }
+ });
+ ws.on('error', (error) => {
+ console.error(error);
+ });
+});
+
+const interval = setInterval(() => { // eslint-disable-line no-unused-vars
+ wss.clients.forEach((ws) => {
+ ws.ping();
+ });
+}, PING_INTERVAL);
diff --git a/server_node/server.js.txt b/server_node/server.js.txt
new file mode 100644
index 0000000..9cf5a21
--- /dev/null
+++ b/server_node/server.js.txt
@@ -0,0 +1,295 @@
+const WebSocket = require('ws');
+const crypto = require('crypto');
+
+const MAX_PEERS = 4096;
+const MAX_LOBBIES = 1024;
+const PORT = 9080;
+const ALFNUM = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
+
+const NO_LOBBY_TIMEOUT = 1000;
+const SEAL_CLOSE_TIMEOUT = 10000;
+const PING_INTERVAL = 10000;
+
+const STR_NO_LOBBY = 'Have not joined lobby yet';
+const STR_HOST_DISCONNECTED = 'Room host has disconnected';
+const STR_ONLY_HOST_CAN_SEAL = 'Only host can seal the lobby';
+const STR_SEAL_COMPLETE = 'Seal complete';
+const STR_TOO_MANY_LOBBIES = 'Too many lobbies open, disconnecting';
+const STR_ALREADY_IN_LOBBY = 'Already in a lobby';
+const STR_LOBBY_DOES_NOT_EXISTS = 'Lobby does not exists';
+const STR_LOBBY_IS_SEALED = 'Lobby is sealed';
+const STR_INVALID_FORMAT = 'Invalid message format';
+const STR_NEED_LOBBY = 'Invalid message when not in a lobby';
+const STR_SERVER_ERROR = 'Server error, lobby not found';
+const STR_INVALID_DEST = 'Invalid destination';
+const STR_INVALID_CMD = 'Invalid command';
+const STR_TOO_MANY_PEERS = 'Too many peers connected';
+const STR_INVALID_TRANSFER_MODE = 'Invalid transfer mode, must be text';
+
+const CMD = {
+ JOIN: 0, // eslint-disable-line sort-keys
+ ID: 1, // eslint-disable-line sort-keys
+ PEER_CONNECT: 2, // eslint-disable-line sort-keys
+ PEER_DISCONNECT: 3, // eslint-disable-line sort-keys
+ OFFER: 4, // eslint-disable-line sort-keys
+ ANSWER: 5, // eslint-disable-line sort-keys
+ CANDIDATE: 6, // eslint-disable-line sort-keys
+ SEAL: 7, // eslint-disable-line sort-keys
+};
+
+function randomInt(low, high) {
+ return Math.floor(Math.random() * (high - low + 1) + low);
+}
+
+function randomId() {
+ return Math.abs(new Int32Array(crypto.randomBytes(4).buffer)[0]);
+}
+
+function randomSecret() {
+ let out = '';
+ for (let i = 0; i < 16; i++) {
+ out += ALFNUM[randomInt(0, ALFNUM.length - 1)];
+ }
+ return out;
+}
+
+function ProtoMessage(type, id, data) {
+ return JSON.stringify({
+ 'type': type,
+ 'id': id,
+ 'data': data || '',
+ });
+}
+
+const wss = new WebSocket.Server({ port: PORT });
+
+class ProtoError extends Error {
+ constructor(code, message) {
+ super(message);
+ this.code = code;
+ }
+}
+
+class Peer {
+ constructor(id, ws) {
+ this.id = id;
+ this.ws = ws;
+ this.lobby = '';
+ // Close connection after 1 sec if client has not joined a lobby
+ this.timeout = setTimeout(() => {
+ if (!this.lobby) {
+ ws.close(4000, STR_NO_LOBBY);
+ }
+ }, NO_LOBBY_TIMEOUT);
+ }
+}
+
+class Lobby {
+ constructor(name, host, mesh) {
+ this.name = name;
+ this.host = host;
+ this.mesh = mesh;
+ this.peers = [];
+ this.sealed = false;
+ this.closeTimer = -1;
+ }
+
+ getPeerId(peer) {
+ if (this.host === peer.id) {
+ return 1;
+ }
+ return peer.id;
+ }
+
+ join(peer) {
+ const assigned = this.getPeerId(peer);
+ peer.ws.send(ProtoMessage(CMD.ID, assigned, this.mesh ? 'true' : ''));
+ this.peers.forEach((p) => {
+ p.ws.send(ProtoMessage(CMD.PEER_CONNECT, assigned));
+ peer.ws.send(ProtoMessage(CMD.PEER_CONNECT, this.getPeerId(p)));
+ });
+ this.peers.push(peer);
+ }
+
+ leave(peer) {
+ const idx = this.peers.findIndex((p) => peer === p);
+ if (idx === -1) {
+ return false;
+ }
+ const assigned = this.getPeerId(peer);
+ const close = assigned === 1;
+ this.peers.forEach((p) => {
+ if (close) { // Room host disconnected, must close.
+ p.ws.close(4000, STR_HOST_DISCONNECTED);
+ } else { // Notify peer disconnect.
+ p.ws.send(ProtoMessage(CMD.PEER_DISCONNECT, assigned));
+ }
+ });
+ this.peers.splice(idx, 1);
+ if (close && this.closeTimer >= 0) {
+ // We are closing already.
+ clearTimeout(this.closeTimer);
+ this.closeTimer = -1;
+ }
+ return close;
+ }
+
+ seal(peer) {
+ // Only host can seal
+ if (peer.id !== this.host) {
+ throw new ProtoError(4000, STR_ONLY_HOST_CAN_SEAL);
+ }
+ this.sealed = true;
+ this.peers.forEach((p) => {
+ p.ws.send(ProtoMessage(CMD.SEAL, 0));
+ });
+ console.log(`Peer ${peer.id} sealed lobby ${this.name} `
+ + `with ${this.peers.length} peers`);
+ this.closeTimer = setTimeout(() => {
+ // Close peer connection to host (and thus the lobby)
+ this.peers.forEach((p) => {
+ p.ws.close(1000, STR_SEAL_COMPLETE);
+ });
+ }, SEAL_CLOSE_TIMEOUT);
+ }
+}
+
+const lobbies = new Map();
+let peersCount = 0;
+
+function joinLobby(peer, pLobby, mesh) {
+ let lobbyName = pLobby;
+ if (lobbyName === '') {
+ if (lobbies.size >= MAX_LOBBIES) {
+ throw new ProtoError(4000, STR_TOO_MANY_LOBBIES);
+ }
+ // Peer must not already be in a lobby
+ if (peer.lobby !== '') {
+ throw new ProtoError(4000, STR_ALREADY_IN_LOBBY);
+ }
+ lobbyName = randomSecret();
+ lobbies.set(lobbyName, new Lobby(lobbyName, peer.id, mesh));
+ console.log(`Peer ${peer.id} created lobby ${lobbyName}`);
+ console.log(`Open lobbies: ${lobbies.size}`);
+ }
+ const lobby = lobbies.get(lobbyName);
+ if (!lobby) {
+ throw new ProtoError(4000, STR_LOBBY_DOES_NOT_EXISTS);
+ }
+ if (lobby.sealed) {
+ throw new ProtoError(4000, STR_LOBBY_IS_SEALED);
+ }
+ peer.lobby = lobbyName;
+ console.log(`Peer ${peer.id} joining lobby ${lobbyName} `
+ + `with ${lobby.peers.length} peers`);
+ lobby.join(peer);
+ peer.ws.send(ProtoMessage(CMD.JOIN, 0, lobbyName));
+}
+
+function parseMsg(peer, msg) {
+ let json = null;
+ try {
+ json = JSON.parse(msg);
+ } catch (e) {
+ throw new ProtoError(4000, STR_INVALID_FORMAT);
+ }
+
+ const type = typeof (json['type']) === 'number' ? Math.floor(json['type']) : -1;
+ const id = typeof (json['id']) === 'number' ? Math.floor(json['id']) : -1;
+ const data = typeof (json['data']) === 'string' ? json['data'] : '';
+
+ if (type < 0 || id < 0) {
+ throw new ProtoError(4000, STR_INVALID_FORMAT);
+ }
+
+ // Lobby joining.
+ if (type === CMD.JOIN) {
+ joinLobby(peer, data, id === 0);
+ return;
+ }
+
+ if (!peer.lobby) {
+ throw new ProtoError(4000, STR_NEED_LOBBY);
+ }
+ const lobby = lobbies.get(peer.lobby);
+ if (!lobby) {
+ throw new ProtoError(4000, STR_SERVER_ERROR);
+ }
+
+ // Lobby sealing.
+ if (type === CMD.SEAL) {
+ lobby.seal(peer);
+ return;
+ }
+
+ // Message relaying format:
+ //
+ // {
+ // "type": CMD.[OFFER|ANSWER|CANDIDATE],
+ // "id": DEST_ID,
+ // "data": PAYLOAD
+ // }
+ if (type === CMD.OFFER || type === CMD.ANSWER || type === CMD.CANDIDATE) {
+ let destId = id;
+ if (id === 1) {
+ destId = lobby.host;
+ }
+ const dest = lobby.peers.find((e) => e.id === destId);
+ // Dest is not in this room.
+ if (!dest) {
+ throw new ProtoError(4000, STR_INVALID_DEST);
+ }
+ dest.ws.send(ProtoMessage(type, lobby.getPeerId(peer), data));
+ return;
+ }
+ throw new ProtoError(4000, STR_INVALID_CMD);
+}
+
+wss.on('connection', (ws) => {
+ if (peersCount >= MAX_PEERS) {
+ ws.close(4000, STR_TOO_MANY_PEERS);
+ return;
+ }
+ peersCount++;
+ const id = randomId();
+ const peer = new Peer(id, ws);
+ ws.on('message', (message) => {
+ if (typeof message !== 'string') {
+ ws.close(4000, STR_INVALID_TRANSFER_MODE);
+ return;
+ }
+ try {
+ parseMsg(peer, message);
+ } catch (e) {
+ const code = e.code || 4000;
+ console.log(`Error parsing message from ${id}:\n${
+ message}`);
+ ws.close(code, e.message);
+ }
+ });
+ ws.on('close', (code, reason) => {
+ peersCount--;
+ console.log(`Connection with peer ${peer.id} closed `
+ + `with reason ${code}: ${reason}`);
+ if (peer.lobby && lobbies.has(peer.lobby)
+ && lobbies.get(peer.lobby).leave(peer)) {
+ lobbies.delete(peer.lobby);
+ console.log(`Deleted lobby ${peer.lobby}`);
+ console.log(`Open lobbies: ${lobbies.size}`);
+ peer.lobby = '';
+ }
+ if (peer.timeout >= 0) {
+ clearTimeout(peer.timeout);
+ peer.timeout = -1;
+ }
+ });
+ ws.on('error', (error) => {
+ console.error(error);
+ });
+});
+
+const interval = setInterval(() => { // eslint-disable-line no-unused-vars
+ wss.clients.forEach((ws) => {
+ ws.ping();
+ });
+}, PING_INTERVAL);
diff --git a/webrtc/LICENSE.json b/webrtc/LICENSE.json
new file mode 100644
index 0000000..1c1f7a6
--- /dev/null
+++ b/webrtc/LICENSE.json
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2013-2022 Niels Lohmann
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/webrtc/LICENSE.libdatachannel b/webrtc/LICENSE.libdatachannel
new file mode 100644
index 0000000..14e2f77
--- /dev/null
+++ b/webrtc/LICENSE.libdatachannel
@@ -0,0 +1,373 @@
+Mozilla Public License Version 2.0
+==================================
+
+1. Definitions
+--------------
+
+1.1. "Contributor"
+ means each individual or legal entity that creates, contributes to
+ the creation of, or owns Covered Software.
+
+1.2. "Contributor Version"
+ means the combination of the Contributions of others (if any) used
+ by a Contributor and that particular Contributor's Contribution.
+
+1.3. "Contribution"
+ means Covered Software of a particular Contributor.
+
+1.4. "Covered Software"
+ means Source Code Form to which the initial Contributor has attached
+ the notice in Exhibit A, the Executable Form of such Source Code
+ Form, and Modifications of such Source Code Form, in each case
+ including portions thereof.
+
+1.5. "Incompatible With Secondary Licenses"
+ means
+
+ (a) that the initial Contributor has attached the notice described
+ in Exhibit B to the Covered Software; or
+
+ (b) that the Covered Software was made available under the terms of
+ version 1.1 or earlier of the License, but not also under the
+ terms of a Secondary License.
+
+1.6. "Executable Form"
+ means any form of the work other than Source Code Form.
+
+1.7. "Larger Work"
+ means a work that combines Covered Software with other material, in
+ a separate file or files, that is not Covered Software.
+
+1.8. "License"
+ means this document.
+
+1.9. "Licensable"
+ means having the right to grant, to the maximum extent possible,
+ whether at the time of the initial grant or subsequently, any and
+ all of the rights conveyed by this License.
+
+1.10. "Modifications"
+ means any of the following:
+
+ (a) any file in Source Code Form that results from an addition to,
+ deletion from, or modification of the contents of Covered
+ Software; or
+
+ (b) any new file in Source Code Form that contains any Covered
+ Software.
+
+1.11. "Patent Claims" of a Contributor
+ means any patent claim(s), including without limitation, method,
+ process, and apparatus claims, in any patent Licensable by such
+ Contributor that would be infringed, but for the grant of the
+ License, by the making, using, selling, offering for sale, having
+ made, import, or transfer of either its Contributions or its
+ Contributor Version.
+
+1.12. "Secondary License"
+ means either the GNU General Public License, Version 2.0, the GNU
+ Lesser General Public License, Version 2.1, the GNU Affero General
+ Public License, Version 3.0, or any later versions of those
+ licenses.
+
+1.13. "Source Code Form"
+ means the form of the work preferred for making modifications.
+
+1.14. "You" (or "Your")
+ means an individual or a legal entity exercising rights under this
+ License. For legal entities, "You" includes any entity that
+ controls, is controlled by, or is under common control with You. For
+ purposes of this definition, "control" means (a) the power, direct
+ or indirect, to cause the direction or management of such entity,
+ whether by contract or otherwise, or (b) ownership of more than
+ fifty percent (50%) of the outstanding shares or beneficial
+ ownership of such entity.
+
+2. License Grants and Conditions
+--------------------------------
+
+2.1. Grants
+
+Each Contributor hereby grants You a world-wide, royalty-free,
+non-exclusive license:
+
+(a) under intellectual property rights (other than patent or trademark)
+ Licensable by such Contributor to use, reproduce, make available,
+ modify, display, perform, distribute, and otherwise exploit its
+ Contributions, either on an unmodified basis, with Modifications, or
+ as part of a Larger Work; and
+
+(b) under Patent Claims of such Contributor to make, use, sell, offer
+ for sale, have made, import, and otherwise transfer either its
+ Contributions or its Contributor Version.
+
+2.2. Effective Date
+
+The licenses granted in Section 2.1 with respect to any Contribution
+become effective for each Contribution on the date the Contributor first
+distributes such Contribution.
+
+2.3. Limitations on Grant Scope
+
+The licenses granted in this Section 2 are the only rights granted under
+this License. No additional rights or licenses will be implied from the
+distribution or licensing of Covered Software under this License.
+Notwithstanding Section 2.1(b) above, no patent license is granted by a
+Contributor:
+
+(a) for any code that a Contributor has removed from Covered Software;
+ or
+
+(b) for infringements caused by: (i) Your and any other third party's
+ modifications of Covered Software, or (ii) the combination of its
+ Contributions with other software (except as part of its Contributor
+ Version); or
+
+(c) under Patent Claims infringed by Covered Software in the absence of
+ its Contributions.
+
+This License does not grant any rights in the trademarks, service marks,
+or logos of any Contributor (except as may be necessary to comply with
+the notice requirements in Section 3.4).
+
+2.4. Subsequent Licenses
+
+No Contributor makes additional grants as a result of Your choice to
+distribute the Covered Software under a subsequent version of this
+License (see Section 10.2) or under the terms of a Secondary License (if
+permitted under the terms of Section 3.3).
+
+2.5. Representation
+
+Each Contributor represents that the Contributor believes its
+Contributions are its original creation(s) or it has sufficient rights
+to grant the rights to its Contributions conveyed by this License.
+
+2.6. Fair Use
+
+This License is not intended to limit any rights You have under
+applicable copyright doctrines of fair use, fair dealing, or other
+equivalents.
+
+2.7. Conditions
+
+Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
+in Section 2.1.
+
+3. Responsibilities
+-------------------
+
+3.1. Distribution of Source Form
+
+All distribution of Covered Software in Source Code Form, including any
+Modifications that You create or to which You contribute, must be under
+the terms of this License. You must inform recipients that the Source
+Code Form of the Covered Software is governed by the terms of this
+License, and how they can obtain a copy of this License. You may not
+attempt to alter or restrict the recipients' rights in the Source Code
+Form.
+
+3.2. Distribution of Executable Form
+
+If You distribute Covered Software in Executable Form then:
+
+(a) such Covered Software must also be made available in Source Code
+ Form, as described in Section 3.1, and You must inform recipients of
+ the Executable Form how they can obtain a copy of such Source Code
+ Form by reasonable means in a timely manner, at a charge no more
+ than the cost of distribution to the recipient; and
+
+(b) You may distribute such Executable Form under the terms of this
+ License, or sublicense it under different terms, provided that the
+ license for the Executable Form does not attempt to limit or alter
+ the recipients' rights in the Source Code Form under this License.
+
+3.3. Distribution of a Larger Work
+
+You may create and distribute a Larger Work under terms of Your choice,
+provided that You also comply with the requirements of this License for
+the Covered Software. If the Larger Work is a combination of Covered
+Software with a work governed by one or more Secondary Licenses, and the
+Covered Software is not Incompatible With Secondary Licenses, this
+License permits You to additionally distribute such Covered Software
+under the terms of such Secondary License(s), so that the recipient of
+the Larger Work may, at their option, further distribute the Covered
+Software under the terms of either this License or such Secondary
+License(s).
+
+3.4. Notices
+
+You may not remove or alter the substance of any license notices
+(including copyright notices, patent notices, disclaimers of warranty,
+or limitations of liability) contained within the Source Code Form of
+the Covered Software, except that You may alter any license notices to
+the extent required to remedy known factual inaccuracies.
+
+3.5. Application of Additional Terms
+
+You may choose to offer, and to charge a fee for, warranty, support,
+indemnity or liability obligations to one or more recipients of Covered
+Software. However, You may do so only on Your own behalf, and not on
+behalf of any Contributor. You must make it absolutely clear that any
+such warranty, support, indemnity, or liability obligation is offered by
+You alone, and You hereby agree to indemnify every Contributor for any
+liability incurred by such Contributor as a result of warranty, support,
+indemnity or liability terms You offer. You may include additional
+disclaimers of warranty and limitations of liability specific to any
+jurisdiction.
+
+4. Inability to Comply Due to Statute or Regulation
+---------------------------------------------------
+
+If it is impossible for You to comply with any of the terms of this
+License with respect to some or all of the Covered Software due to
+statute, judicial order, or regulation then You must: (a) comply with
+the terms of this License to the maximum extent possible; and (b)
+describe the limitations and the code they affect. Such description must
+be placed in a text file included with all distributions of the Covered
+Software under this License. Except to the extent prohibited by statute
+or regulation, such description must be sufficiently detailed for a
+recipient of ordinary skill to be able to understand it.
+
+5. Termination
+--------------
+
+5.1. The rights granted under this License will terminate automatically
+if You fail to comply with any of its terms. However, if You become
+compliant, then the rights granted under this License from a particular
+Contributor are reinstated (a) provisionally, unless and until such
+Contributor explicitly and finally terminates Your grants, and (b) on an
+ongoing basis, if such Contributor fails to notify You of the
+non-compliance by some reasonable means prior to 60 days after You have
+come back into compliance. Moreover, Your grants from a particular
+Contributor are reinstated on an ongoing basis if such Contributor
+notifies You of the non-compliance by some reasonable means, this is the
+first time You have received notice of non-compliance with this License
+from such Contributor, and You become compliant prior to 30 days after
+Your receipt of the notice.
+
+5.2. If You initiate litigation against any entity by asserting a patent
+infringement claim (excluding declaratory judgment actions,
+counter-claims, and cross-claims) alleging that a Contributor Version
+directly or indirectly infringes any patent, then the rights granted to
+You by any and all Contributors for the Covered Software under Section
+2.1 of this License shall terminate.
+
+5.3. In the event of termination under Sections 5.1 or 5.2 above, all
+end user license agreements (excluding distributors and resellers) which
+have been validly granted by You or Your distributors under this License
+prior to termination shall survive termination.
+
+************************************************************************
+* *
+* 6. Disclaimer of Warranty *
+* ------------------------- *
+* *
+* Covered Software is provided under this License on an "as is" *
+* basis, without warranty of any kind, either expressed, implied, or *
+* statutory, including, without limitation, warranties that the *
+* Covered Software is free of defects, merchantable, fit for a *
+* particular purpose or non-infringing. The entire risk as to the *
+* quality and performance of the Covered Software is with You. *
+* Should any Covered Software prove defective in any respect, You *
+* (not any Contributor) assume the cost of any necessary servicing, *
+* repair, or correction. This disclaimer of warranty constitutes an *
+* essential part of this License. No use of any Covered Software is *
+* authorized under this License except under this disclaimer. *
+* *
+************************************************************************
+
+************************************************************************
+* *
+* 7. Limitation of Liability *
+* -------------------------- *
+* *
+* Under no circumstances and under no legal theory, whether tort *
+* (including negligence), contract, or otherwise, shall any *
+* Contributor, or anyone who distributes Covered Software as *
+* permitted above, be liable to You for any direct, indirect, *
+* special, incidental, or consequential damages of any character *
+* including, without limitation, damages for lost profits, loss of *
+* goodwill, work stoppage, computer failure or malfunction, or any *
+* and all other commercial damages or losses, even if such party *
+* shall have been informed of the possibility of such damages. This *
+* limitation of liability shall not apply to liability for death or *
+* personal injury resulting from such party's negligence to the *
+* extent applicable law prohibits such limitation. Some *
+* jurisdictions do not allow the exclusion or limitation of *
+* incidental or consequential damages, so this exclusion and *
+* limitation may not apply to You. *
+* *
+************************************************************************
+
+8. Litigation
+-------------
+
+Any litigation relating to this License may be brought only in the
+courts of a jurisdiction where the defendant maintains its principal
+place of business and such litigation shall be governed by laws of that
+jurisdiction, without reference to its conflict-of-law provisions.
+Nothing in this Section shall prevent a party's ability to bring
+cross-claims or counter-claims.
+
+9. Miscellaneous
+----------------
+
+This License represents the complete agreement concerning the subject
+matter hereof. If any provision of this License is held to be
+unenforceable, such provision shall be reformed only to the extent
+necessary to make it enforceable. Any law or regulation which provides
+that the language of a contract shall be construed against the drafter
+shall not be used to construe this License against a Contributor.
+
+10. Versions of the License
+---------------------------
+
+10.1. New Versions
+
+Mozilla Foundation is the license steward. Except as provided in Section
+10.3, no one other than the license steward has the right to modify or
+publish new versions of this License. Each version will be given a
+distinguishing version number.
+
+10.2. Effect of New Versions
+
+You may distribute the Covered Software under the terms of the version
+of the License under which You originally received the Covered Software,
+or under the terms of any subsequent version published by the license
+steward.
+
+10.3. Modified Versions
+
+If you create software not governed by this License, and you want to
+create a new license for such software, you may create and use a
+modified version of this License if you rename the license and remove
+any references to the name of the license steward (except to note that
+such modified license differs from this License).
+
+10.4. Distributing Source Code Form that is Incompatible With Secondary
+Licenses
+
+If You choose to distribute Source Code Form that is Incompatible With
+Secondary Licenses under the terms of this version of the License, the
+notice described in Exhibit B of this License must be attached.
+
+Exhibit A - Source Code Form License Notice
+-------------------------------------------
+
+ This Source Code Form is subject to the terms of the Mozilla Public
+ License, v. 2.0. If a copy of the MPL was not distributed with this
+ file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+If it is not possible or desirable to put the notice in a particular
+file, then You may include the notice in a location (such as a LICENSE
+file in a relevant directory) where a recipient would be likely to look
+for such a notice.
+
+You may add additional accurate notices of copyright ownership.
+
+Exhibit B - "Incompatible With Secondary Licenses" Notice
+---------------------------------------------------------
+
+ This Source Code Form is "Incompatible With Secondary Licenses", as
+ defined by the Mozilla Public License, v. 2.0.
diff --git a/webrtc/LICENSE.libjuice b/webrtc/LICENSE.libjuice
new file mode 100644
index 0000000..14e2f77
--- /dev/null
+++ b/webrtc/LICENSE.libjuice
@@ -0,0 +1,373 @@
+Mozilla Public License Version 2.0
+==================================
+
+1. Definitions
+--------------
+
+1.1. "Contributor"
+ means each individual or legal entity that creates, contributes to
+ the creation of, or owns Covered Software.
+
+1.2. "Contributor Version"
+ means the combination of the Contributions of others (if any) used
+ by a Contributor and that particular Contributor's Contribution.
+
+1.3. "Contribution"
+ means Covered Software of a particular Contributor.
+
+1.4. "Covered Software"
+ means Source Code Form to which the initial Contributor has attached
+ the notice in Exhibit A, the Executable Form of such Source Code
+ Form, and Modifications of such Source Code Form, in each case
+ including portions thereof.
+
+1.5. "Incompatible With Secondary Licenses"
+ means
+
+ (a) that the initial Contributor has attached the notice described
+ in Exhibit B to the Covered Software; or
+
+ (b) that the Covered Software was made available under the terms of
+ version 1.1 or earlier of the License, but not also under the
+ terms of a Secondary License.
+
+1.6. "Executable Form"
+ means any form of the work other than Source Code Form.
+
+1.7. "Larger Work"
+ means a work that combines Covered Software with other material, in
+ a separate file or files, that is not Covered Software.
+
+1.8. "License"
+ means this document.
+
+1.9. "Licensable"
+ means having the right to grant, to the maximum extent possible,
+ whether at the time of the initial grant or subsequently, any and
+ all of the rights conveyed by this License.
+
+1.10. "Modifications"
+ means any of the following:
+
+ (a) any file in Source Code Form that results from an addition to,
+ deletion from, or modification of the contents of Covered
+ Software; or
+
+ (b) any new file in Source Code Form that contains any Covered
+ Software.
+
+1.11. "Patent Claims" of a Contributor
+ means any patent claim(s), including without limitation, method,
+ process, and apparatus claims, in any patent Licensable by such
+ Contributor that would be infringed, but for the grant of the
+ License, by the making, using, selling, offering for sale, having
+ made, import, or transfer of either its Contributions or its
+ Contributor Version.
+
+1.12. "Secondary License"
+ means either the GNU General Public License, Version 2.0, the GNU
+ Lesser General Public License, Version 2.1, the GNU Affero General
+ Public License, Version 3.0, or any later versions of those
+ licenses.
+
+1.13. "Source Code Form"
+ means the form of the work preferred for making modifications.
+
+1.14. "You" (or "Your")
+ means an individual or a legal entity exercising rights under this
+ License. For legal entities, "You" includes any entity that
+ controls, is controlled by, or is under common control with You. For
+ purposes of this definition, "control" means (a) the power, direct
+ or indirect, to cause the direction or management of such entity,
+ whether by contract or otherwise, or (b) ownership of more than
+ fifty percent (50%) of the outstanding shares or beneficial
+ ownership of such entity.
+
+2. License Grants and Conditions
+--------------------------------
+
+2.1. Grants
+
+Each Contributor hereby grants You a world-wide, royalty-free,
+non-exclusive license:
+
+(a) under intellectual property rights (other than patent or trademark)
+ Licensable by such Contributor to use, reproduce, make available,
+ modify, display, perform, distribute, and otherwise exploit its
+ Contributions, either on an unmodified basis, with Modifications, or
+ as part of a Larger Work; and
+
+(b) under Patent Claims of such Contributor to make, use, sell, offer
+ for sale, have made, import, and otherwise transfer either its
+ Contributions or its Contributor Version.
+
+2.2. Effective Date
+
+The licenses granted in Section 2.1 with respect to any Contribution
+become effective for each Contribution on the date the Contributor first
+distributes such Contribution.
+
+2.3. Limitations on Grant Scope
+
+The licenses granted in this Section 2 are the only rights granted under
+this License. No additional rights or licenses will be implied from the
+distribution or licensing of Covered Software under this License.
+Notwithstanding Section 2.1(b) above, no patent license is granted by a
+Contributor:
+
+(a) for any code that a Contributor has removed from Covered Software;
+ or
+
+(b) for infringements caused by: (i) Your and any other third party's
+ modifications of Covered Software, or (ii) the combination of its
+ Contributions with other software (except as part of its Contributor
+ Version); or
+
+(c) under Patent Claims infringed by Covered Software in the absence of
+ its Contributions.
+
+This License does not grant any rights in the trademarks, service marks,
+or logos of any Contributor (except as may be necessary to comply with
+the notice requirements in Section 3.4).
+
+2.4. Subsequent Licenses
+
+No Contributor makes additional grants as a result of Your choice to
+distribute the Covered Software under a subsequent version of this
+License (see Section 10.2) or under the terms of a Secondary License (if
+permitted under the terms of Section 3.3).
+
+2.5. Representation
+
+Each Contributor represents that the Contributor believes its
+Contributions are its original creation(s) or it has sufficient rights
+to grant the rights to its Contributions conveyed by this License.
+
+2.6. Fair Use
+
+This License is not intended to limit any rights You have under
+applicable copyright doctrines of fair use, fair dealing, or other
+equivalents.
+
+2.7. Conditions
+
+Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
+in Section 2.1.
+
+3. Responsibilities
+-------------------
+
+3.1. Distribution of Source Form
+
+All distribution of Covered Software in Source Code Form, including any
+Modifications that You create or to which You contribute, must be under
+the terms of this License. You must inform recipients that the Source
+Code Form of the Covered Software is governed by the terms of this
+License, and how they can obtain a copy of this License. You may not
+attempt to alter or restrict the recipients' rights in the Source Code
+Form.
+
+3.2. Distribution of Executable Form
+
+If You distribute Covered Software in Executable Form then:
+
+(a) such Covered Software must also be made available in Source Code
+ Form, as described in Section 3.1, and You must inform recipients of
+ the Executable Form how they can obtain a copy of such Source Code
+ Form by reasonable means in a timely manner, at a charge no more
+ than the cost of distribution to the recipient; and
+
+(b) You may distribute such Executable Form under the terms of this
+ License, or sublicense it under different terms, provided that the
+ license for the Executable Form does not attempt to limit or alter
+ the recipients' rights in the Source Code Form under this License.
+
+3.3. Distribution of a Larger Work
+
+You may create and distribute a Larger Work under terms of Your choice,
+provided that You also comply with the requirements of this License for
+the Covered Software. If the Larger Work is a combination of Covered
+Software with a work governed by one or more Secondary Licenses, and the
+Covered Software is not Incompatible With Secondary Licenses, this
+License permits You to additionally distribute such Covered Software
+under the terms of such Secondary License(s), so that the recipient of
+the Larger Work may, at their option, further distribute the Covered
+Software under the terms of either this License or such Secondary
+License(s).
+
+3.4. Notices
+
+You may not remove or alter the substance of any license notices
+(including copyright notices, patent notices, disclaimers of warranty,
+or limitations of liability) contained within the Source Code Form of
+the Covered Software, except that You may alter any license notices to
+the extent required to remedy known factual inaccuracies.
+
+3.5. Application of Additional Terms
+
+You may choose to offer, and to charge a fee for, warranty, support,
+indemnity or liability obligations to one or more recipients of Covered
+Software. However, You may do so only on Your own behalf, and not on
+behalf of any Contributor. You must make it absolutely clear that any
+such warranty, support, indemnity, or liability obligation is offered by
+You alone, and You hereby agree to indemnify every Contributor for any
+liability incurred by such Contributor as a result of warranty, support,
+indemnity or liability terms You offer. You may include additional
+disclaimers of warranty and limitations of liability specific to any
+jurisdiction.
+
+4. Inability to Comply Due to Statute or Regulation
+---------------------------------------------------
+
+If it is impossible for You to comply with any of the terms of this
+License with respect to some or all of the Covered Software due to
+statute, judicial order, or regulation then You must: (a) comply with
+the terms of this License to the maximum extent possible; and (b)
+describe the limitations and the code they affect. Such description must
+be placed in a text file included with all distributions of the Covered
+Software under this License. Except to the extent prohibited by statute
+or regulation, such description must be sufficiently detailed for a
+recipient of ordinary skill to be able to understand it.
+
+5. Termination
+--------------
+
+5.1. The rights granted under this License will terminate automatically
+if You fail to comply with any of its terms. However, if You become
+compliant, then the rights granted under this License from a particular
+Contributor are reinstated (a) provisionally, unless and until such
+Contributor explicitly and finally terminates Your grants, and (b) on an
+ongoing basis, if such Contributor fails to notify You of the
+non-compliance by some reasonable means prior to 60 days after You have
+come back into compliance. Moreover, Your grants from a particular
+Contributor are reinstated on an ongoing basis if such Contributor
+notifies You of the non-compliance by some reasonable means, this is the
+first time You have received notice of non-compliance with this License
+from such Contributor, and You become compliant prior to 30 days after
+Your receipt of the notice.
+
+5.2. If You initiate litigation against any entity by asserting a patent
+infringement claim (excluding declaratory judgment actions,
+counter-claims, and cross-claims) alleging that a Contributor Version
+directly or indirectly infringes any patent, then the rights granted to
+You by any and all Contributors for the Covered Software under Section
+2.1 of this License shall terminate.
+
+5.3. In the event of termination under Sections 5.1 or 5.2 above, all
+end user license agreements (excluding distributors and resellers) which
+have been validly granted by You or Your distributors under this License
+prior to termination shall survive termination.
+
+************************************************************************
+* *
+* 6. Disclaimer of Warranty *
+* ------------------------- *
+* *
+* Covered Software is provided under this License on an "as is" *
+* basis, without warranty of any kind, either expressed, implied, or *
+* statutory, including, without limitation, warranties that the *
+* Covered Software is free of defects, merchantable, fit for a *
+* particular purpose or non-infringing. The entire risk as to the *
+* quality and performance of the Covered Software is with You. *
+* Should any Covered Software prove defective in any respect, You *
+* (not any Contributor) assume the cost of any necessary servicing, *
+* repair, or correction. This disclaimer of warranty constitutes an *
+* essential part of this License. No use of any Covered Software is *
+* authorized under this License except under this disclaimer. *
+* *
+************************************************************************
+
+************************************************************************
+* *
+* 7. Limitation of Liability *
+* -------------------------- *
+* *
+* Under no circumstances and under no legal theory, whether tort *
+* (including negligence), contract, or otherwise, shall any *
+* Contributor, or anyone who distributes Covered Software as *
+* permitted above, be liable to You for any direct, indirect, *
+* special, incidental, or consequential damages of any character *
+* including, without limitation, damages for lost profits, loss of *
+* goodwill, work stoppage, computer failure or malfunction, or any *
+* and all other commercial damages or losses, even if such party *
+* shall have been informed of the possibility of such damages. This *
+* limitation of liability shall not apply to liability for death or *
+* personal injury resulting from such party's negligence to the *
+* extent applicable law prohibits such limitation. Some *
+* jurisdictions do not allow the exclusion or limitation of *
+* incidental or consequential damages, so this exclusion and *
+* limitation may not apply to You. *
+* *
+************************************************************************
+
+8. Litigation
+-------------
+
+Any litigation relating to this License may be brought only in the
+courts of a jurisdiction where the defendant maintains its principal
+place of business and such litigation shall be governed by laws of that
+jurisdiction, without reference to its conflict-of-law provisions.
+Nothing in this Section shall prevent a party's ability to bring
+cross-claims or counter-claims.
+
+9. Miscellaneous
+----------------
+
+This License represents the complete agreement concerning the subject
+matter hereof. If any provision of this License is held to be
+unenforceable, such provision shall be reformed only to the extent
+necessary to make it enforceable. Any law or regulation which provides
+that the language of a contract shall be construed against the drafter
+shall not be used to construe this License against a Contributor.
+
+10. Versions of the License
+---------------------------
+
+10.1. New Versions
+
+Mozilla Foundation is the license steward. Except as provided in Section
+10.3, no one other than the license steward has the right to modify or
+publish new versions of this License. Each version will be given a
+distinguishing version number.
+
+10.2. Effect of New Versions
+
+You may distribute the Covered Software under the terms of the version
+of the License under which You originally received the Covered Software,
+or under the terms of any subsequent version published by the license
+steward.
+
+10.3. Modified Versions
+
+If you create software not governed by this License, and you want to
+create a new license for such software, you may create and use a
+modified version of this License if you rename the license and remove
+any references to the name of the license steward (except to note that
+such modified license differs from this License).
+
+10.4. Distributing Source Code Form that is Incompatible With Secondary
+Licenses
+
+If You choose to distribute Source Code Form that is Incompatible With
+Secondary Licenses under the terms of this version of the License, the
+notice described in Exhibit B of this License must be attached.
+
+Exhibit A - Source Code Form License Notice
+-------------------------------------------
+
+ This Source Code Form is subject to the terms of the Mozilla Public
+ License, v. 2.0. If a copy of the MPL was not distributed with this
+ file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+If it is not possible or desirable to put the notice in a particular
+file, then You may include the notice in a location (such as a LICENSE
+file in a relevant directory) where a recipient would be likely to look
+for such a notice.
+
+You may add additional accurate notices of copyright ownership.
+
+Exhibit B - "Incompatible With Secondary Licenses" Notice
+---------------------------------------------------------
+
+ This Source Code Form is "Incompatible With Secondary Licenses", as
+ defined by the Mozilla Public License, v. 2.0.
diff --git a/webrtc/LICENSE.libsrtp b/webrtc/LICENSE.libsrtp
new file mode 100644
index 0000000..af0a2ac
--- /dev/null
+++ b/webrtc/LICENSE.libsrtp
@@ -0,0 +1,35 @@
+/*
+ *
+ * Copyright (c) 2001-2017 Cisco Systems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * Neither the name of the Cisco Systems, Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
diff --git a/webrtc/LICENSE.openssl b/webrtc/LICENSE.openssl
new file mode 100644
index 0000000..49cc83d
--- /dev/null
+++ b/webrtc/LICENSE.openssl
@@ -0,0 +1,177 @@
+
+ Apache License
+ Version 2.0, January 2004
+ https://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
+
+ "Licensor" shall mean the copyright owner or entity authorized by
+ the copyright owner that is granting the License.
+
+ "Legal Entity" shall mean the union of the acting entity and all
+ other entities that control, are controlled by, or are under common
+ control with that entity. For the purposes of this definition,
+ "control" means (i) the power, direct or indirect, to cause the
+ direction or management of such entity, whether by contract or
+ otherwise, or (ii) ownership of fifty percent (50%) or more of the
+ outstanding shares, or (iii) beneficial ownership of such entity.
+
+ "You" (or "Your") shall mean an individual or Legal Entity
+ exercising permissions granted by this License.
+
+ "Source" form shall mean the preferred form for making modifications,
+ including but not limited to software source code, documentation
+ source, and configuration files.
+
+ "Object" form shall mean any form resulting from mechanical
+ transformation or translation of a Source form, including but
+ not limited to compiled object code, generated documentation,
+ and conversions to other media types.
+
+ "Work" shall mean the work of authorship, whether in Source or
+ Object form, made available under the License, as indicated by a
+ copyright notice that is included in or attached to the work
+ (an example is provided in the Appendix below).
+
+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
+ separable from, or merely link (or bind by name) to the interfaces of,
+ the Work and Derivative Works thereof.
+
+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
+ submitted to Licensor for inclusion in the Work by the copyright owner
+ or by an individual or Legal Entity authorized to submit on behalf of
+ the copyright owner. For the purposes of this definition, "submitted"
+ means any form of electronic, verbal, or written communication sent
+ to the Licensor or its representatives, including but not limited to
+ communication on electronic mailing lists, source code control systems,
+ and issue tracking systems that are managed by, or on behalf of, the
+ Licensor for the purpose of discussing and improving the Work, but
+ excluding communication that is conspicuously marked or otherwise
+ designated in writing by the copyright owner as "Not a Contribution."
+
+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
+ subsequently incorporated within the Work.
+
+ 2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ copyright license to reproduce, prepare Derivative Works of,
+ publicly display, publicly perform, sublicense, and distribute the
+ Work and such Derivative Works in Source or Object form.
+
+ 3. Grant of Patent License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ (except as stated in this section) patent license to make, have made,
+ use, offer to sell, sell, import, and otherwise transfer the Work,
+ where such license applies only to those patent claims licensable
+ by such Contributor that are necessarily infringed by their
+ Contribution(s) alone or by combination of their Contribution(s)
+ with the Work to which such Contribution(s) was submitted. If You
+ institute patent litigation against any entity (including a
+ cross-claim or counterclaim in a lawsuit) alleging that the Work
+ or a Contribution incorporated within the Work constitutes direct
+ or contributory patent infringement, then any patent licenses
+ granted to You under this License for that Work shall terminate
+ as of the date such litigation is filed.
+
+ 4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
+
+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
+
+ (c) You must retain, in the Source form of any Derivative Works
+ that You distribute, all copyright, patent, trademark, and
+ attribution notices from the Source form of the Work,
+ excluding those notices that do not pertain to any part of
+ the Derivative Works; and
+
+ (d) If the Work includes a "NOTICE" text file as part of its
+ distribution, then any Derivative Works that You distribute must
+ include a readable copy of the attribution notices contained
+ within such NOTICE file, excluding those notices that do not
+ pertain to any part of the Derivative Works, in at least one
+ of the following places: within a NOTICE text file distributed
+ as part of the Derivative Works; within the Source form or
+ documentation, if provided along with the Derivative Works; or,
+ within a display generated by the Derivative Works, if and
+ wherever such third-party notices normally appear. The contents
+ of the NOTICE file are for informational purposes only and
+ do not modify the License. You may add Your own attribution
+ notices within Derivative Works that You distribute, alongside
+ or as an addendum to the NOTICE text from the Work, provided
+ that such additional attribution notices cannot be construed
+ as modifying the License.
+
+ You may add Your own copyright statement to Your modifications and
+ may provide additional or different license terms and conditions
+ for use, reproduction, or distribution of Your modifications, or
+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+
+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied, including, without limitation, any warranties or conditions
+ of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+ PARTICULAR PURPOSE. You are solely responsible for determining the
+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
+
+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
+ result of this License or out of the use or inability to use the
+ Work (including but not limited to damages for loss of goodwill,
+ work stoppage, computer failure or malfunction, or any and all
+ other commercial damages or losses), even if such Contributor
+ has been advised of the possibility of such damages.
+
+ 9. Accepting Warranty or Additional Liability. While redistributing
+ the Work or Derivative Works thereof, You may choose to offer,
+ and charge a fee for, acceptance of support, warranty, indemnity,
+ or other liability obligations and/or rights consistent with this
+ License. However, in accepting such obligations, You may act only
+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
+
+ END OF TERMS AND CONDITIONS
diff --git a/webrtc/LICENSE.plog b/webrtc/LICENSE.plog
new file mode 100644
index 0000000..8a91a0a
--- /dev/null
+++ b/webrtc/LICENSE.plog
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2022 Sergey Podobry
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/webrtc/LICENSE.usrsctp b/webrtc/LICENSE.usrsctp
new file mode 100644
index 0000000..a2d1f98
--- /dev/null
+++ b/webrtc/LICENSE.usrsctp
@@ -0,0 +1,27 @@
+Copyright (c) 2015, Randall Stewart and Michael Tuexen
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+* Neither the name of usrsctp nor the names of its
+ contributors may be used to endorse or promote products derived from
+ this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/webrtc/LICENSE.webrtc-native b/webrtc/LICENSE.webrtc-native
new file mode 100644
index 0000000..ec92632
--- /dev/null
+++ b/webrtc/LICENSE.webrtc-native
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 Godot Engine
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/webrtc/lib/libwebrtc_native.android.template_debug.arm64.so b/webrtc/lib/libwebrtc_native.android.template_debug.arm64.so
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diff --git a/webrtc/lib/libwebrtc_native.ios.template_debug.arm64.dylib b/webrtc/lib/libwebrtc_native.ios.template_debug.arm64.dylib
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index 0000000..f1cbbfb
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diff --git a/webrtc/lib/libwebrtc_native.linux.template_debug.x86_32.so b/webrtc/lib/libwebrtc_native.linux.template_debug.x86_32.so
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index 0000000..67988b9
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diff --git a/webrtc/lib/libwebrtc_native.linux.template_debug.x86_64.so b/webrtc/lib/libwebrtc_native.linux.template_debug.x86_64.so
new file mode 100644
index 0000000..9d647fc
Binary files /dev/null and b/webrtc/lib/libwebrtc_native.linux.template_debug.x86_64.so differ
diff --git a/webrtc/lib/libwebrtc_native.linux.template_release.x86_32.so b/webrtc/lib/libwebrtc_native.linux.template_release.x86_32.so
new file mode 100644
index 0000000..19d34d4
Binary files /dev/null and b/webrtc/lib/libwebrtc_native.linux.template_release.x86_32.so differ
diff --git a/webrtc/lib/libwebrtc_native.linux.template_release.x86_64.so b/webrtc/lib/libwebrtc_native.linux.template_release.x86_64.so
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diff --git a/webrtc/lib/libwebrtc_native.macos.template_debug.universal.framework/Resources/Info.plist b/webrtc/lib/libwebrtc_native.macos.template_debug.universal.framework/Resources/Info.plist
new file mode 100644
index 0000000..f4d8e8a
--- /dev/null
+++ b/webrtc/lib/libwebrtc_native.macos.template_debug.universal.framework/Resources/Info.plist
@@ -0,0 +1,28 @@
+
+
+
+
+ CFBundleExecutable
+ libwebrtc_native.macos.template_debug.universal.dylib
+ CFBundleIdentifier
+ org.godotengine.webrtc-native
+ CFBundleInfoDictionaryVersion
+ 6.0
+ CFBundleDisplayName
+ libwebrtc_native.macos.template_debug.universal
+ CFBundleName
+ webrtc_native
+ CFBundlePackageType
+ FMWK
+ CFBundleShortVersionString
+ 1.0.0
+ CFBundleSupportedPlatforms
+
+ MacOSX
+
+ CFBundleVersion
+ 1.0.0
+ LSMinimumSystemVersion
+ 11.0
+
+
diff --git a/webrtc/lib/libwebrtc_native.macos.template_debug.universal.framework/libwebrtc_native.macos.template_debug.universal.dylib b/webrtc/lib/libwebrtc_native.macos.template_debug.universal.framework/libwebrtc_native.macos.template_debug.universal.dylib
new file mode 100644
index 0000000..de690a0
Binary files /dev/null and b/webrtc/lib/libwebrtc_native.macos.template_debug.universal.framework/libwebrtc_native.macos.template_debug.universal.dylib differ
diff --git a/webrtc/lib/libwebrtc_native.macos.template_release.universal.framework/Resources/Info.plist b/webrtc/lib/libwebrtc_native.macos.template_release.universal.framework/Resources/Info.plist
new file mode 100644
index 0000000..a0219e7
--- /dev/null
+++ b/webrtc/lib/libwebrtc_native.macos.template_release.universal.framework/Resources/Info.plist
@@ -0,0 +1,28 @@
+
+
+
+
+ CFBundleExecutable
+ libwebrtc_native.macos.template_release.universal.dylib
+ CFBundleIdentifier
+ org.godotengine.webrtc-native
+ CFBundleInfoDictionaryVersion
+ 6.0
+ CFBundleDisplayName
+ libwebrtc_native.macos.template_release.universal
+ CFBundleName
+ webrtc_native
+ CFBundlePackageType
+ FMWK
+ CFBundleShortVersionString
+ 1.0.0
+ CFBundleSupportedPlatforms
+
+ MacOSX
+
+ CFBundleVersion
+ 1.0.0
+ LSMinimumSystemVersion
+ 11.0
+
+
diff --git a/webrtc/lib/libwebrtc_native.macos.template_release.universal.framework/libwebrtc_native.macos.template_release.universal.dylib b/webrtc/lib/libwebrtc_native.macos.template_release.universal.framework/libwebrtc_native.macos.template_release.universal.dylib
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index 0000000..b425616
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diff --git a/webrtc/lib/libwebrtc_native.windows.template_debug.x86_32.dll b/webrtc/lib/libwebrtc_native.windows.template_debug.x86_32.dll
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index 0000000..003d9d2
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diff --git a/webrtc/lib/libwebrtc_native.windows.template_debug.x86_64.dll b/webrtc/lib/libwebrtc_native.windows.template_debug.x86_64.dll
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index 0000000..a4b2697
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diff --git a/webrtc/lib/libwebrtc_native.windows.template_release.x86_32.dll b/webrtc/lib/libwebrtc_native.windows.template_release.x86_32.dll
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index 0000000..451baf0
Binary files /dev/null and b/webrtc/lib/libwebrtc_native.windows.template_release.x86_32.dll differ
diff --git a/webrtc/lib/libwebrtc_native.windows.template_release.x86_64.dll b/webrtc/lib/libwebrtc_native.windows.template_release.x86_64.dll
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index 0000000..bc62c5d
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diff --git a/webrtc/webrtc.gdextension b/webrtc/webrtc.gdextension
new file mode 100644
index 0000000..a112463
--- /dev/null
+++ b/webrtc/webrtc.gdextension
@@ -0,0 +1,30 @@
+[configuration]
+
+entry_symbol = "webrtc_extension_init"
+compatibility_minimum = 4.1
+
+[libraries]
+
+linux.debug.x86_64 = "lib/libwebrtc_native.linux.template_debug.x86_64.so"
+linux.debug.x86_32 = "lib/libwebrtc_native.linux.template_debug.x86_32.so"
+linux.debug.arm64 = "lib/libwebrtc_native.linux.template_debug.arm64.so"
+linux.debug.arm32 = "lib/libwebrtc_native.linux.template_debug.arm32.so"
+macos.debug = "lib/libwebrtc_native.macos.template_debug.universal.framework"
+windows.debug.x86_64 = "lib/libwebrtc_native.windows.template_debug.x86_64.dll"
+windows.debug.x86_32 = "lib/libwebrtc_native.windows.template_debug.x86_32.dll"
+android.debug.arm64 = "lib/libwebrtc_native.android.template_debug.arm64.so"
+android.debug.x86_64 = "lib/libwebrtc_native.android.template_debug.x86_64.so"
+ios.debug.arm64 = "lib/libwebrtc_native.ios.template_debug.arm64.dylib"
+ios.debug.x86_64 = "lib/libwebrtc_native.ios.template_debug.x86_64.simulator.dylib"
+
+linux.release.x86_64 = "lib/libwebrtc_native.linux.template_release.x86_64.so"
+linux.release.x86_32 = "lib/libwebrtc_native.linux.template_release.x86_32.so"
+linux.release.arm64 = "lib/libwebrtc_native.linux.template_release.arm64.so"
+linux.release.arm32 = "lib/libwebrtc_native.linux.template_release.arm32.so"
+macos.release = "lib/libwebrtc_native.macos.template_release.universal.framework"
+windows.release.x86_64 = "lib/libwebrtc_native.windows.template_release.x86_64.dll"
+windows.release.x86_32 = "lib/libwebrtc_native.windows.template_release.x86_32.dll"
+android.release.arm64 = "lib/libwebrtc_native.android.template_release.arm64.so"
+android.release.x86_64 = "lib/libwebrtc_native.android.template_release.x86_64.so"
+ios.release.arm64 = "lib/libwebrtc_native.ios.template_release.arm64.dylib"
+ios.release.x86_64 = "lib/libwebrtc_native.ios.template_release.x86_64.simulator.dylib"