feat: one ws, fit for luna

this is fix for browser can't hold more than 5 ws connections

coco/httpd.py

@@ -26,7 +26,6 @@ class BaseWebSocketHandler:
 
     def prepare(self, request):
         # self.app = self.settings["app"]
-        child, parent = socket.socketpair()
         if request.headers.getlist("X-Forwarded-For"):
             remote_ip = request.headers.getlist("X-Forwarded-For")[0]
         else:
@@ -36,10 +35,6 @@ class BaseWebSocketHandler:
         self.clients[request.sid]["request"].meta = {"width": self.clients[request.sid]["cols"],
                                                      "height": self.clients[request.sid]["rows"]}
         # self.request.__dict__.update(request.__dict__)
-        self.clients[request.sid]["client"] = Client(parent, self.clients[request.sid]["request"])
-        self.clients[request.sid]["proxy"] = WSProxy(self, child, self.clients[request.sid]["room"])
-        self.app.clients.append(self.clients[request.sid]["client"])
-        self.clients[request.sid]["forwarder"] = ProxyServer(self.app, self.clients[request.sid]["client"])
 
     def check_origin(self, origin):
         return True
@@ -64,9 +59,10 @@ class SSHws(Namespace, BaseWebSocketHandler):
             "cols": int(request.cookies.get('cols', 80)),
             "rows": int(request.cookies.get('rows', 24)),
             "room": room,
-            "chan": None,
-            "proxy": None,
-            "client": None,
+            # "chan": dict(),
+            "proxy": dict(),
+            "client": dict(),
+            "forwarder": dict(),
             "request": None,
         }
         self.rooms[room] = {
@@ -80,18 +76,31 @@ class SSHws(Namespace, BaseWebSocketHandler):
         self.prepare(request)
 
     def on_data(self, message):
-        if self.clients[request.sid]["proxy"]:
-            self.clients[request.sid]["proxy"].send({"data": message})
+        if message['room'] and self.clients[request.sid]["proxy"][message['room']]:
+            self.clients[request.sid]["proxy"][message['room']].send({"data": message['data']})
 
     def on_host(self, message):
         # 此处获取主机的信息
-        uuid = message.get('uuid', None)
+        connection = str(uuid.uuid4())
+        assetID = message.get('uuid', None)
         userid = message.get('userid', None)
-        if uuid and userid:
-            asset = self.app.service.get_asset(uuid)
+        self.emit('room', {'room': connection, 'secret': message['secret']})
+
+        if assetID and userid:
+            asset = self.app.service.get_asset(assetID)
             system_user = self.app.service.get_system_user(userid)
             if system_user:
-                self.socketio.start_background_task(self.clients[request.sid]["forwarder"].proxy, asset, system_user)
+
+                child, parent = socket.socketpair()
+                self.clients[request.sid]["client"][connection] = Client(parent, self.clients[request.sid]["request"])
+                self.clients[request.sid]["proxy"][connection] = WSProxy(self, child, self.clients[request.sid]["room"],
+                                                                         connection)
+                self.app.clients.append(self.clients[request.sid]["client"][connection])
+                self.clients[request.sid]["forwarder"][connection] = ProxyServer(self.app,
+                                                                                 self.clients[request.sid]["client"][connection])
+
+                self.socketio.start_background_task(self.clients[request.sid]["forwarder"][connection].proxy, asset,
+                                                    system_user)
                 # self.forwarder.proxy(self.asset, system_user)
             else:
                 self.on_disconnect()
@@ -125,13 +134,21 @@ class SSHws(Namespace, BaseWebSocketHandler):
     def on_disconnect(self):
         self.on_leave(self.clients[request.sid]["room"])
         try:
-            # todo: there maybe have bug
-            self.clients[request.sid]["proxy"].close()
+            del self.clients[request.sid]
         except:
             pass
         # self.ssh.close()
         pass
 
+    def on_logout(self, connection):
+        print("logout", connection)
+        if connection:
+            self.clients[request.sid]["proxy"][connection].close()
+            del self.clients[request.sid]["proxy"][connection]
+            del self.clients[request.sid]["forwarder"][connection]
+            self.clients[request.sid]["client"][connection].close()
+            del self.clients[request.sid]["client"][connection]
+
 
 class HttpServer:
     # prepare may be rewrite it

coco/models.py

@@ -186,7 +186,7 @@ class WSProxy:
     ```
     """
 
-    def __init__(self, ws, child, room):
+    def __init__(self, ws, child, room, connection):
         """
         :param ws: websocket instance or handler, have write_message method
         :param child: sock child pair
@@ -196,6 +196,7 @@ class WSProxy:
         self.stop_event = threading.Event()
         self.room = room
         self.auto_forward()
+        self.connection = connection
 
     def send(self, msg):
         """
@@ -215,7 +216,7 @@ class WSProxy:
             data = self.child.recv(BUF_SIZE)
             if len(data) == 0:
                 self.close()
-            self.ws.emit("data", data.decode("utf-8"), room=self.room)
+            self.ws.emit("data", {'data': data.decode("utf-8"), 'room': self.connection}, room=self.room)
 
     def auto_forward(self):
         thread = threading.Thread(target=self.forward, args=())
@@ -225,4 +226,3 @@ class WSProxy:
     def close(self):
         self.stop_event.set()
         self.child.close()
-        self.ws.on_disconnect()