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lukasandClaude Opus 4.8 a5ec0d21cb Initial commit: webmail client (M0/M1)
Three-pane webmail client.
- Backend: FastAPI + async SQLAlchemy + arq worker (Postgres/Redis), IMAP/SMTP
  sync, threading, search, drafts/outbox with undo, attachments, 2FA.
- Frontend: React 18 + Vite + TypeScript + TanStack Query + Tailwind; three-pane
  UI with rich-text composer, light/dark themes, resizable panels.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-17 23:20:34 +02:00

125 lines
4.4 KiB
Python

"""Duplicate Message-ID handling in the indexer (SPEC §7.1).
Real-world trigger: home.pl's welcome mailer reuses one static Message-ID for
every recipient, so the same id lands in different accounts as different messages.
"""
from __future__ import annotations
import uuid
from collections.abc import AsyncIterator
from datetime import UTC, datetime, timedelta
from email.message import EmailMessage
import pytest_asyncio
from sqlalchemy import delete
from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
from sqlalchemy.pool import NullPool
from app.config import get_settings
from app.indexer.indexer import persist_message
from app.models import Account, Mailbox, Message, User
from app.providers.base import RemoteMessage
class Dupenv:
def __init__(self, session: AsyncSession, user_id: uuid.UUID) -> None:
self.session = session
self.user_id = user_id
self.accounts: dict[str, uuid.UUID] = {}
self.mailboxes: dict[str, uuid.UUID] = {}
self._uid = 0
async def add_account(self, label: str) -> None:
acc = Account(
user_id=self.user_id,
email=f"{label}@example.com",
imap_config={},
smtp_config={},
secret_ct=b"",
discovery_src="manual",
)
self.session.add(acc)
await self.session.flush()
self.accounts[label] = acc.id
async def add_mailbox(self, account_label: str, path: str) -> None:
mb = Mailbox(
account_id=self.accounts[account_label],
user_id=self.user_id,
path=path,
special_use="inbox",
)
self.session.add(mb)
await self.session.flush()
self.mailboxes[f"{account_label}/{path}"] = mb.id
async def ingest(
self, account_label: str, path: str, *, mid: str, minutes: int = 0
) -> Message | None:
self._uid += 1
m = EmailMessage()
m["Subject"] = "Pierwsze kroki z pocztą w home.pl"
m["From"] = "info@home.pl"
m["Message-ID"] = mid
m["Date"] = "Sun, 23 Nov 2025 12:47:30 +0000"
m.set_content("welcome template body")
remote = RemoteMessage(
uid=self._uid,
raw=m.as_bytes(),
flags=frozenset(),
internal_date=datetime(2026, 1, 1, tzinfo=UTC) + timedelta(minutes=minutes),
)
result = await persist_message(
self.session,
user_id=self.user_id,
account_id=self.accounts[account_label],
mailbox_id=self.mailboxes[f"{account_label}/{path}"],
mailbox_special_use="inbox",
remote=remote,
)
return result.message if result else None
@pytest_asyncio.fixture
async def dup() -> AsyncIterator[Dupenv]:
engine = create_async_engine(get_settings().database_url, poolclass=NullPool)
sm = async_sessionmaker(engine, expire_on_commit=False)
session = sm()
user = User(handle=f"dup{uuid.uuid4().hex[:8]}@test.local", password_hash="x")
session.add(user)
await session.flush()
env = Dupenv(session, user.id)
await env.add_account("a")
await env.add_account("b")
await env.add_mailbox("a", "INBOX")
await env.add_mailbox("a", "Archive")
await env.add_mailbox("b", "INBOX")
try:
yield env
finally:
await session.execute(delete(User).where(User.id == user.id))
await session.commit()
await session.close()
await engine.dispose()
async def test_cross_account_duplicate_isolates(dup: Dupenv) -> None:
# Same static Message-ID delivered to two different accounts -> two threads.
a = await dup.ingest("a", "INBOX", mid="<static@home.pl>", minutes=0)
b = await dup.ingest("b", "INBOX", mid="<static@home.pl>", minutes=60)
assert a is not None and b is not None
assert a.thread_id != b.thread_id
# The second one was stored with a synthesized, non-authoritative id.
assert a.message_id_hdr == "static@home.pl"
assert b.message_id_hdr.endswith("@synthetic.local")
async def test_same_account_duplicate_merges(dup: Dupenv) -> None:
# Same message in INBOX + Archive of ONE account (Gmail-style) -> one thread.
a = await dup.ingest("a", "INBOX", mid="<msg@x.com>", minutes=0)
b = await dup.ingest("a", "Archive", mid="<msg@x.com>", minutes=1)
assert a is not None and b is not None
assert a.thread_id == b.thread_id
assert b.message_id_hdr == "msg@x.com"