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ipserv/ipserv.py

69 lines
2.1 KiB
Python

import requests
import json
import logging
import time
from fastapi import FastAPI, Header, Request, Query, HTTPException
from fastapi.responses import JSONResponse
app = FastAPI()
logging.basicConfig(level=logging.INFO)
cache = {}
@app.get("/")
def ip(
request: Request,
X_Forwarded_For: str = Header(None),
User_Agent: str = Header("Mozilla/5.0"),
Accept: str = Header("text/plain"),
Accept_Language: str = Header("en-us"),
lookup: str = Query(None),
):
if lookup:
ip = lookup
elif X_Forwarded_For:
ip = X_Forwarded_For
else:
ip = request.client.host
if ip in cache:
data, timestamp = cache[ip]
if time.time() - timestamp < 3600:
logging.info("cache hit for %s", ip)
return JSONResponse(data)
logging.info("cache expired for %s", ip)
logging.info("looking up IP info for %s", ip)
try:
response = requests.get(
"https://ip.shronk.tech/lookup?ip=" + ip,
headers={
"User-Agent": User_Agent,
"Accept": Accept,
"Accept-Language": Accept_Language,
"Dnt": "1",
"Sec-Fetch-Dest": "document",
"Sec-Fetch-Mode": "navigate",
"Sec-Fetch-Site": "none",
"Sec-Fetch-User": "?1",
"Sec-Gpc": "1",
"Upgrade-Insecure-Requests": "1"
}
)
response.raise_for_status()
except Exception as e:
logging.error("Failed to get data for %s: %s", ip, e, exc_info=True)
raise HTTPException(500, "Failed to get upstream data.")
try:
data = response.json()
except json.JSONDecodeError as e:
logging.error("Failed to parse data for %s: %s", ip, e, exc_info=True)
raise HTTPException(500, "Failed to parse upstream response.")
logging.info("%s -> %r", ip, data)
data["ip"] = ip
data.pop("legalese", None)
data.pop("source", None)
data.pop("brexitRequired", None)
if response.status_code == 200:
cache[ip] = [data, time.time()]
return JSONResponse(data, response.status_code)