added minecraft checker

apps/api/api/checkers/minecraft.py

@@ -0,0 +1,37 @@
+from core.coretypes import Response, PortResponse, ErrorPayload, ErrorCodes, MinecraftResponse, ResponseStatus
+from mcstatus import MinecraftServer
+from .base import BaseChecker
+import socket
+
+
+class MinecraftChecker(BaseChecker):
+
+    def __init__(self, target: str, port: int):
+        self.port = port
+        super().__init__(target)
+
+    def check(self) -> Response:
+        try:
+            server = MinecraftServer.lookup(f"{self.target}:{self.port}")
+            status = server.status()
+        except socket.gaierror:
+            return Response(
+                status=ResponseStatus.ERROR,
+                payload=ErrorPayload(
+                    message="Server does not respond!",
+                    code=ErrorCodes.ConnectError
+                ),
+                node=self.node_info
+            )
+        return Response(
+            status=ResponseStatus.OK,
+            payload=MinecraftResponse(
+                latency=status.latency,
+                max_players=status.players.max,
+                online=status.players.online
+            ),
+            node=self.node_info
+        )
+
+
+