Update app.py

app.py

@@ -1,50 +1,33 @@
 from fastapi import FastAPI, Request, HTTPException
 import time
 import uvicorn
-import json
-from urllib.request import urlopen
 
 app = FastAPI()
 
 last_request_time = {}
 
-def get_real_location_sync(ip: str):
-    """Lấy vị trí bằng thư viện chuẩn urllib (không cần cài thêm gì)"""
-    if ip == "unknown" or ip.startswith("127."):
-        return "VN"
-    try:
-        # Gọi API lấy vị trí (timeout 2s để không làm chậm app)
-        with urlopen(f"http://ip-api.com/json/{ip}", timeout=2) as response:
-            data = json.loads(response.read().decode())
-            if data.get("status") == "success":
-                return f"{data.get('city')}, {data.get('country')}"
-    except:
-        pass
-    return "VN"
-
 @app.get("/")
 async def root(request: Request):
     headers = request.headers
-    client_ip = headers.get("x-forwarded-for", "unknown").split(",")[0]
     
-    # --- Rate Limiting (0.5s) ---
+    # 1. Lấy Client IP
+    forwarded = headers.get("x-forwarded-for")
+    client_ip = forwarded.split(",")[0] if forwarded else "unknown"
+
+    # 2. Rate Limiting (0.5s)
     now = time.time()
-    if client_ip in last_request_time and (now - last_request_time[client_ip] < 0.5):
-        raise HTTPException(status_code=429, detail="Slow down!")
+    if client_ip in last_request_time:
+        if now - last_request_time[client_ip] < 0.5:
+            raise HTTPException(status_code=429, detail="Slow down!")
     last_request_time[client_ip] = now
 
-    # --- Lấy vị trí thật ---
-    # Nếu chạy trên Hugging Face, nó có sẵn header 'cf-ipcity' và 'cf-ipcountry'
-    # Bạn có thể ưu tiên lấy từ header cho nhanh, nếu không có mới gọi API
-    city = headers.get("cf-ipcity", "")
+    # 3. Lấy vị trí từ Header
+    city = headers.get("cf-ipcity", "Unknown City")
     country = headers.get("cf-ipcountry", "VN")
-    
-    if city:
-        real_loc = f"{city}, {country}"
-    else:
-        real_loc = get_real_location_sync(client_ip)
+    real_loc = f"{city}, {country}"
 
     return {
+        "info": "This is a high-performance Network Discovery Tool designed to provide real-time connection insights and geolocation data. Made by MinhDuc with love",
         "fl": "998f87",
         "h": headers.get("host", "huggingface.co"),
         "ip": client_ip,