imap-mail-filter-service/app/services/scheduler.py

138 lines
4.4 KiB
Python

import asyncio
import logging
from datetime import datetime
from apscheduler.schedulers.asyncio import AsyncIOScheduler
from sqlalchemy.orm import Session
from app.database import SessionLocal
from app.models.db_models import Account, FilterRule
from app.services.encryption import decrypt
from app.services.filter_engine import apply_rules
from app.services.imap_client import IMAPClient
logger = logging.getLogger(__name__)
scheduler = AsyncIOScheduler()
def _build_smtp_config(account: Account) -> dict | None:
if account.smtp_host and account.smtp_username and account.smtp_password:
return {
"host": account.smtp_host,
"port": account.smtp_port or 465,
"username": account.smtp_username,
"password": decrypt(account.smtp_password),
}
return None
def _poll_account_sync(account_id: int) -> None:
db: Session = SessionLocal()
try:
account = db.get(Account, account_id)
if not account or not account.enabled:
return
rules = (
db.query(FilterRule)
.filter(FilterRule.account_id == account_id, FilterRule.enabled.is_(True))
.order_by(FilterRule.priority)
.all()
)
if not rules:
logger.debug("Keine aktiven Regeln für Konto '%s'", account.name)
return
# Collect unique source folders
source_folders = list({r.source_folder for r in rules})
smtp_config = _build_smtp_config(account)
client = IMAPClient(
host=account.imap_host,
port=account.imap_port,
username=account.username,
password=decrypt(account.password),
use_ssl=account.use_ssl,
)
with client:
for folder in source_folders:
folder_rules = [r for r in rules if r.source_folder == folder]
try:
messages = client.fetch_unseen(folder)
except Exception as e:
logger.error("Fehler beim Abrufen von %s/%s: %s", account.name, folder, e)
continue
if messages:
logger.info(
"Konto '%s', Ordner '%s': %d ungelesene Mails",
account.name, folder, len(messages),
)
for mail in messages:
results = apply_rules(client, mail, folder_rules, smtp_config)
for r in results:
level = logging.INFO if r["success"] else logging.ERROR
logger.log(
level,
"Konto '%s': %s %s -> %s (%s)",
account.name, r["action"], r.get("parameter", ""),
"OK" if r["success"] else "FEHLER", r["rule"],
)
account.last_poll_at = datetime.utcnow()
db.commit()
except Exception as e:
logger.error("Fehler beim Polling von Konto %s: %s", account_id, e)
finally:
db.close()
async def poll_account(account_id: int) -> None:
await asyncio.to_thread(_poll_account_sync, account_id)
def add_account_job(account: Account) -> None:
job_id = f"poll_account_{account.id}"
if scheduler.get_job(job_id):
scheduler.remove_job(job_id)
if account.enabled:
scheduler.add_job(
poll_account,
"interval",
seconds=account.poll_interval_seconds,
id=job_id,
args=[account.id],
replace_existing=True,
)
logger.info(
"Job für Konto '%s' registriert (alle %ds)",
account.name, account.poll_interval_seconds,
)
def remove_account_job(account_id: int) -> None:
job_id = f"poll_account_{account_id}"
if scheduler.get_job(job_id):
scheduler.remove_job(job_id)
logger.info("Job für Konto %s entfernt", account_id)
def start_scheduler() -> None:
db = SessionLocal()
try:
accounts = db.query(Account).filter(Account.enabled.is_(True)).all()
for account in accounts:
add_account_job(account)
finally:
db.close()
scheduler.start()
logger.info("Scheduler gestartet mit %d Jobs", len(scheduler.get_jobs()))
def stop_scheduler() -> None:
scheduler.shutdown(wait=False)
logger.info("Scheduler gestoppt")