Files
gh-christianlouis-inboxconv…/backend/app/workers/tasks.py
T
copilot-swe-agent[bot] 27c50e49cf Fix all mypy and eslint errors, add copilot lint instructions
Backend (mypy - 56 errors fixed):
- database.py: Fix async generator return type to AsyncGenerator
- database_models.py: Add type annotations for SQLEnum columns
- middleware.py: Use explicit Optional for exempt_paths parameter
- mail_processor.py: Fix type narrowing in fetch_emails, add Dict type annotation for KNOWN_PROVIDERS
- users.py, auth.py, providers.py, tasks.py: Add type: ignore comments for SQLAlchemy Column assignment patterns

Frontend (eslint - 3 errors, 2 warnings fixed):
- login/page.tsx: Replace any with unknown + type narrowing, prefix unused vars with underscore
- register/page.tsx: Replace any with unknown + type narrowing

Add .github/copilot-instructions.md with lint-check requirements

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>
Agent-Logs-Url: https://github.com/christianlouis/pop_puller_to_gmail/sessions/dac7ab78-fe27-4fe4-890f-32c6c1c6d881
2026-03-23 10:48:16 +00:00

291 lines
11 KiB
Python

"""
Celery tasks for background email processing.
"""
import asyncio
import os
from datetime import datetime, timedelta
from celery import Task
import logging
from app.workers.celery_app import celery_app
from app.core.database import async_session_maker
from app.core.security import decrypt_credential
from app.models.database_models import (
MailAccount,
ProcessingRun,
ProcessingLog,
AccountStatus,
DeliveryMethod,
GmailCredential,
)
from app.services.mail_processor import MailProcessor
from app.services.gmail_service import GmailService, GmailInjectionError
from app.core.config import settings
from sqlalchemy import select, and_
logger = logging.getLogger(__name__)
class AsyncTask(Task):
"""Base task class that handles async operations"""
def __call__(self, *args, **kwargs):
"""Run async task in event loop"""
# Use asyncio.run() for better event loop management
return asyncio.run(self.run(*args, **kwargs))
@celery_app.task(base=AsyncTask, name="app.workers.tasks.process_mail_account")
async def process_mail_account(account_id: int):
"""
Process a single mail account - fetch and forward emails.
Args:
account_id: ID of mail account to process
"""
async with async_session_maker() as db:
try:
# Get account
result = await db.execute(
select(MailAccount).where(MailAccount.id == account_id)
)
account = result.scalar_one_or_none()
if not account or not account.is_enabled:
logger.warning(f"Account {account_id} not found or disabled")
return
# Create processing run
run = ProcessingRun(
mail_account_id=account.id,
started_at=datetime.utcnow(),
status="running",
)
db.add(run)
await db.commit()
await db.refresh(run)
# Decrypt password
password = decrypt_credential(account.encrypted_password) # type: ignore[arg-type]
# Create processor
processor = MailProcessor(account, password)
# Fetch emails
emails = await processor.fetch_emails(account.max_emails_per_check) # type: ignore[arg-type]
run.emails_fetched = len(emails) # type: ignore[assignment]
# Forward emails
emails_forwarded = 0
emails_failed = 0
# Determine delivery method
use_gmail_api = account.delivery_method == DeliveryMethod.GMAIL_API
gmail_service = None
smtp_config = None
if use_gmail_api:
# Get user's Gmail credentials
gmail_cred_result = await db.execute(
select(GmailCredential).where(
GmailCredential.user_id == account.user_id,
GmailCredential.is_valid == True, # noqa: E712
)
)
gmail_cred = gmail_cred_result.scalar_one_or_none()
if gmail_cred:
access_token = decrypt_credential(gmail_cred.encrypted_access_token) # type: ignore[arg-type]
refresh_token = (
decrypt_credential(gmail_cred.encrypted_refresh_token) # type: ignore[arg-type]
if gmail_cred.encrypted_refresh_token
else None
)
gmail_service = GmailService(
access_token=access_token,
refresh_token=refresh_token,
client_id=settings.GOOGLE_CLIENT_ID,
client_secret=settings.GOOGLE_CLIENT_SECRET,
)
else:
logger.warning(
f"Gmail API credentials not found for user {account.user_id}, "
f"falling back to SMTP for account {account.id}"
)
use_gmail_api = False # type: ignore[assignment]
if not use_gmail_api:
# Fall back to SMTP
smtp_config = {
"host": os.getenv("SMTP_HOST", "smtp.gmail.com"),
"port": int(os.getenv("SMTP_PORT", "587")),
"username": os.getenv("SMTP_USER", ""),
"password": os.getenv("SMTP_PASSWORD", ""),
"use_tls": os.getenv("SMTP_USE_TLS", "true").lower() == "true",
}
if not smtp_config["username"] or not smtp_config["password"]:
logger.error(
f"SMTP credentials not configured for account {account.id}"
)
run.status = "failed" # type: ignore[assignment]
run.error_message = "No delivery method configured (SMTP credentials missing and Gmail API not set up)" # type: ignore[assignment]
await db.commit()
return
for email_data in emails:
try:
if use_gmail_api and gmail_service:
# Inject via Gmail API (preferred)
await gmail_service.inject_email(
raw_email=email_data,
label_ids=["INBOX"],
source_account_name=account.name, # type: ignore[arg-type]
)
emails_forwarded += 1
else:
# Forward via SMTP (fallback)
success = await MailProcessor.forward_email(
email_data, account.name, account.forward_to, smtp_config # type: ignore[arg-type]
)
if success:
emails_forwarded += 1
else:
emails_failed += 1
except (GmailInjectionError, Exception) as e:
logger.error(f"Error delivering email: {e}")
emails_failed += 1
# Update run
run.emails_forwarded = emails_forwarded # type: ignore[assignment]
run.emails_failed = emails_failed # type: ignore[assignment]
run.completed_at = datetime.utcnow() # type: ignore[assignment]
run.duration_seconds = (run.completed_at - run.started_at).total_seconds()
run.status = "completed" if emails_failed == 0 else "partial_failure" # type: ignore[assignment]
# Update account
account.total_emails_processed += emails_forwarded # type: ignore[assignment]
account.total_emails_failed += emails_failed # type: ignore[assignment]
account.last_check_at = datetime.utcnow() # type: ignore[assignment]
if emails_failed == 0:
account.last_successful_check_at = datetime.utcnow() # type: ignore[assignment]
account.status = AccountStatus.ACTIVE # type: ignore[assignment]
else:
account.status = AccountStatus.ERROR # type: ignore[assignment]
account.last_error_at = datetime.utcnow() # type: ignore[assignment]
account.last_error_message = f"{emails_failed} emails failed to forward" # type: ignore[assignment]
await db.commit()
logger.info(
f"Processed account {account.id}: "
f"{emails_forwarded} forwarded, {emails_failed} failed"
)
except Exception as e:
logger.error(f"Error processing account {account_id}: {e}")
# Mark run as failed
if "run" in locals():
run.status = "failed" # type: ignore[assignment]
run.error_message = str(e) # type: ignore[assignment]
run.completed_at = datetime.utcnow() # type: ignore[assignment]
run.duration_seconds = (
run.completed_at - run.started_at
).total_seconds()
# Update account error status
if "account" in locals() and account is not None:
account.status = AccountStatus.ERROR # type: ignore[assignment]
account.last_error_at = datetime.utcnow() # type: ignore[assignment]
account.last_error_message = str(e) # type: ignore[assignment]
await db.commit()
@celery_app.task(base=AsyncTask, name="app.workers.tasks.process_all_enabled_accounts")
async def process_all_enabled_accounts():
"""
Process all enabled mail accounts.
This task is scheduled to run periodically.
"""
async with async_session_maker() as db:
try:
# Get all enabled accounts
result = await db.execute(
select(MailAccount).where(
and_(
MailAccount.is_enabled == True, # noqa: E712
MailAccount.status.in_(
[AccountStatus.ACTIVE, AccountStatus.TESTING]
),
)
)
)
accounts = result.scalars().all()
logger.info(f"Processing {len(accounts)} enabled mail accounts")
# Process each account
for account in accounts:
# Check if it's time to check this account
if account.last_check_at:
time_since_last_check = datetime.utcnow() - account.last_check_at
if time_since_last_check.total_seconds() < (
account.check_interval_minutes * 60
):
logger.debug(f"Skipping account {account.id} - not time yet")
continue
# Queue processing task
process_mail_account.delay(account.id)
except Exception as e:
logger.error(f"Error processing accounts: {e}")
@celery_app.task(base=AsyncTask, name="app.workers.tasks.cleanup_old_logs")
async def cleanup_old_logs(days_to_keep: int = 30):
"""
Clean up old processing logs and runs.
Args:
days_to_keep: Number of days of logs to retain
"""
async with async_session_maker() as db:
try:
cutoff_date = datetime.utcnow() - timedelta(days=days_to_keep)
# Delete old processing runs
result = await db.execute(
select(ProcessingRun).where(ProcessingRun.started_at < cutoff_date)
)
old_runs = result.scalars().all()
for run in old_runs:
await db.delete(run)
# Delete old processing logs
result = await db.execute(
select(ProcessingLog).where(ProcessingLog.timestamp < cutoff_date)
)
old_logs = result.scalars().all()
for log in old_logs:
await db.delete(log)
await db.commit()
logger.info(
f"Cleaned up {len(old_runs)} old processing runs and "
f"{len(old_logs)} old logs"
)
except Exception as e:
logger.error(f"Error cleaning up logs: {e}")