proper status code, added detail in reposne

macvendorapi.py

@@ -1,144 +1,120 @@
 from fastapi import FastAPI, HTTPException
-from contextlib import asynccontextmanager
+from fastapi.responses import JSONResponse
-import httpx
 import re
 import os
-from typing import Dict, Optional
+import httpx
+from urllib.parse import unquote
 
-local_mac_vendors: Dict[str, str] = {}
+app = FastAPI(title="MAC Address Vendor Lookup API")
 
-@asynccontextmanager
+def normalize_mac(mac_address: str) -> str:
-async def lifespan(app: FastAPI):
+    mac_clean = unquote(mac_address)
-    load_local_mac_vendors()
+    mac_clean = re.sub(r'[^a-fA-F0-9]', '', mac_clean)
-    yield
+    
+    if len(mac_clean) < 6:
+        return None
+    
+    return '-'.join([mac_clean[i:i+2].upper() for i in range(0, len(mac_clean), 2)])
 
-app = FastAPI(title="MAC Address Vendor Lookup", version="1.0.0", lifespan=lifespan)
+def is_valid_mac(mac_address: str) -> bool:
+    mac_clean = unquote(mac_address)
+    mac_clean = re.sub(r'[^a-fA-F0-9]', '', mac_clean)
+    return len(mac_clean) >= 6 and len(mac_clean) <= 12 and all(c in '0123456789abcdefABCDEF' for c in mac_clean)
 
-local_mac_vendors: Dict[str, str] = {}
+def get_mac_prefix(mac_address: str) -> str:
+    mac_clean = re.sub(r'[^a-fA-F0-9]', '', mac_address)
+    return mac_clean[:6].upper()
 
-def load_local_mac_vendors():
+def lookup_local_file(mac_prefix: str) -> str:
-    """Load MAC vendor data from local file"""
+    if not os.path.exists('mac_list.txt'):
-    global local_mac_vendors
+        return None
-    if local_mac_vendors or not os.path.exists("mac_list.txt"):
-        return
     
     try:
-        with open("mac_list.txt", "r", encoding="utf-8") as file:
+        with open('mac_list.txt', 'r') as f:
-            for line in file:
+            for line in f:
                 line = line.strip()
-                if line:
+                if line and ' ' in line:
-                    parts = line.split('\t', 1)
+                    prefix, vendor = line.split(' ', 1)
-                    if len(parts) == 2:
+                    if prefix.upper() == mac_prefix:
-                        oui = parts[0].strip().upper()
+                        return vendor
-                        vendor = parts[1].strip()
-                        local_mac_vendors[oui] = vendor
     except Exception:
         pass
+    
+    return None
 
-async def lookup_from_github(oui: str) -> Optional[str]:
+async def lookup_remote_gist(mac_prefix: str) -> str:
-    """Lookup vendor from GitHub gist"""
     url = "https://gist.githubusercontent.com/aallan/b4bb86db86079509e6159810ae9bd3e4/raw/846ae1b646ab0f4d646af9115e47365f4118e5f6/mac-vendor.txt"
     
     try:
         async with httpx.AsyncClient() as client:
-            response = await client.get(url, timeout=10.0)
+            response = await client.get(url, timeout=5.0)
-            response.raise_for_status()
-            
-            for line in response.text.strip().split('\n'):
-                if line.strip():
-                    parts = line.split('\t', 1)
-                    if len(parts) == 2 and parts[0].strip().upper() == oui:
-                        return parts[1].strip()
-    except Exception:
-        pass
-    
-    return None
-
-async def lookup_from_macvendors_api(mac_address: str) -> Optional[str]:
-    """Lookup vendor from macvendors.com API"""
-    try:
-        formatted_mac = normalize_mac_for_api(mac_address)
-        url = f"https://api.macvendors.com/{formatted_mac}"
-        
-        async with httpx.AsyncClient() as client:
-            response = await client.get(url, timeout=10.0)
-            
             if response.status_code == 200:
-                content_type = response.headers.get("content-type", "")
+                for line in response.text.split('\n'):
-                if "application/json" in content_type:
+                    line = line.strip()
-                    return None
+                    if line and ' ' in line:
-                else:
+                        prefix, vendor = line.split(' ', 1)
-                    return response.text.strip()
+                        if prefix.upper() == mac_prefix:
+                            return vendor
     except Exception:
         pass
     
     return None
 
-def normalize_mac_for_api(mac_address: str) -> str:
+async def lookup_remote_api(normalized_mac: str) -> str:
-    """Normalize MAC address for external API (XX-XX-XX format)"""
+    mac_for_api = normalized_mac
-    clean_mac = re.sub(r'[^a-fA-F0-9]', '', mac_address.upper())
+    if len(mac_for_api.replace('-', '')) == 6:
-    if len(clean_mac) >= 6:
+        mac_for_api = mac_for_api + '-00-00-00'
-        return f"{clean_mac[0:2]}-{clean_mac[2:4]}-{clean_mac[4:6]}"
-    else:
-        raise ValueError("Invalid MAC address format")
-
-def normalize_mac_response(mac_address: str) -> str:
-    """Normalize MAC address for response format"""
-    clean_mac = re.sub(r'[^a-fA-F0-9]', '', mac_address.upper())
     
-    if len(clean_mac) == 6:
+    url = f"https://api.macvendors.com/{mac_for_api}"
-        return f"{clean_mac[0:2]}-{clean_mac[2:4]}-{clean_mac[4:6]}"
+    
-    elif len(clean_mac) == 12:
+    try:
-        return f"{clean_mac[0:2]}-{clean_mac[2:4]}-{clean_mac[4:6]}-{clean_mac[6:8]}-{clean_mac[8:10]}-{clean_mac[10:12]}"
+        async with httpx.AsyncClient() as client:
-    else:
+            response = await client.get(url, timeout=5.0)
-        raise ValueError("Invalid MAC address format")
+            if response.status_code == 200:
-
+                return response.text.strip()
-def get_oui(mac_address: str) -> str:
+    except Exception:
-    """Extract OUI (first 6 hex digits) from MAC address"""
+        pass
-    clean_mac = re.sub(r'[^a-fA-F0-9]', '', mac_address.upper())
+    
-    if len(clean_mac) >= 6:
+    return None
-        return clean_mac[:6]
-    else:
-        raise ValueError("MAC address too short")
-
-
-
-@app.get("/")
-async def root():
-    return {"message": "MAC Address Vendor Lookup API"}
 
 @app.get("/lookup/{mac_address}")
-async def lookup_vendor(mac_address: str):
+async def lookup_mac_vendor(mac_address: str):
-    try:
+    if not is_valid_mac(mac_address):
-        oui = get_oui(mac_address)
+        return JSONResponse(
-        formatted_mac = normalize_mac_response(mac_address)
+            status_code=400,
-        vendor = None
+            content={
-        
+                "mac_address": mac_address,
-        # 1. Try local file first
+                "vendor": None,
-        if oui in local_mac_vendors:
+                "detail": "Invalid MAC address format"
-            vendor = local_mac_vendors[oui]
+            }
-        
+        )
-        # 2. Try GitHub gist if not found locally
+    
-        if not vendor:
+    normalized_mac = normalize_mac(mac_address)
-            vendor = await lookup_from_github(oui)
+    mac_prefix = get_mac_prefix(mac_address)
-        
+    
-        # 3. Try macvendors.com API if still not found
+    vendor = lookup_local_file(mac_prefix)
-        if not vendor:
+    
-            vendor = await lookup_from_macvendors_api(mac_address)
+    if not vendor:
-        
+        vendor = await lookup_remote_gist(mac_prefix)
-        # Default to Unknown if nothing found
+    
-        if not vendor:
+    if not vendor:
-            vendor = "Unknown"
+        vendor = await lookup_remote_api(normalized_mac)
-        
+    
+    if vendor:
         return {
-            "mac_address": formatted_mac,
+            "mac_address": normalized_mac,
-            "vendor": vendor
+            "vendor": vendor,
+            "detail": None
         }
-        
+    else:
-    except ValueError as e:
+        return JSONResponse(
-        raise HTTPException(status_code=400, detail=str(e))
+            status_code=404,
-    except Exception as e:
+            content={
-        raise HTTPException(status_code=500, detail="Internal server error")
+                "mac_address": normalized_mac,
+                "vendor": None,
+                "detail": "Vendor not found"
+            }
+        )
 
 if __name__ == "__main__":
     import uvicorn