Files
idrs-api/app/verify.py
T

91 lines
3.0 KiB
Python

import logging
import os
import threading
import time
import urllib.error
import urllib.request
from pathlib import Path
from urllib.parse import urlparse
from app.models import ICON_DIR, SessionLocal, Token
logger = logging.getLogger("idrs.verify")
ENABLED = os.environ.get("IDRS_VERIFY_ENABLED", "").strip().lower() in ("1", "true", "yes", "on")
PUBLIC_BASE_URL = os.environ.get("IDRS_PUBLIC_URL", "https://idrs.databisnis.id").rstrip("/")
PUBLIC_HOST = urlparse(PUBLIC_BASE_URL).hostname or "idrs.databisnis.id"
INTERVAL = int(os.environ.get("IDRS_VERIFY_INTERVAL", "600"))
GRACE_PASSES = 2
HTTP_TIMEOUT = 3
USER_AGENT = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0 Safari/537.36"
def _local_reachable(filename: str) -> bool:
token_dir = ICON_DIR / "token"
path = (token_dir / filename).resolve()
return path.is_file() and token_dir.resolve() in path.parents
def _http_reachable(url: str) -> bool:
req = urllib.request.Request(url, headers={"User-Agent": USER_AGENT, "Accept": "image/*,*/*"})
try:
with urllib.request.urlopen(req, timeout=HTTP_TIMEOUT) as resp:
return 200 <= resp.status < 300
except urllib.error.HTTPError as e:
logger.warning("icon http %s for %s", e.code, url)
return False
except Exception as e:
logger.warning("icon network error %r for %s", e, url)
return False
def reachable(token) -> bool:
url = (token.iconUrl or "").strip()
if not url:
return False
if urlparse(url).hostname == PUBLIC_HOST:
return _local_reachable(token.filename or "")
return _http_reachable(url)
class Verifier(threading.Thread):
def __init__(self):
super().__init__(daemon=True, name="idrs-verify")
self._stop = threading.Event()
self._fail_counts = {}
def stop(self):
self._stop.set()
def start(self):
if not ENABLED:
logger.info("verifier disabled (IDRS_VERIFY_ENABLED not set)")
return
super().start()
def run(self):
while not self._stop.is_set():
try:
self._check_once()
except Exception:
logger.exception("verify pass failed")
self._stop.wait(INTERVAL)
def _check_once(self):
session = SessionLocal()
try:
for token in session.query(Token).all():
ok = reachable(token)
if ok:
self._fail_counts[token.idfToken] = 0
live = True
else:
fails = self._fail_counts.get(token.idfToken, 0) + 1
self._fail_counts[token.idfToken] = fails
live = fails < GRACE_PASSES
if bool(token.is_live) != live:
token.is_live = live
logger.info("token %s is_live -> %s (%s)", token.idfToken, live, token.iconUrl)
session.commit()
finally:
session.close()