# retoor <retoor@molodetz.nl>
import logging
from typing import Any
from devplacepy import stealth
from devplacepy.database import get_int_setting
from devplacepy.push import providers, store
logger = logging.getLogger(__name__)
TIMEOUT_KEY = "push_delivery_timeout_seconds"
DEFAULT_TIMEOUT_SECONDS = 10
MIN_TIMEOUT_SECONDS = 1
MAX_TIMEOUT_SECONDS = 120
def timeout_seconds() -> float:
seconds = get_int_setting(TIMEOUT_KEY, DEFAULT_TIMEOUT_SECONDS)
return float(min(max(seconds, MIN_TIMEOUT_SECONDS), MAX_TIMEOUT_SECONDS))
def group_by_provider(
registrations: list[dict[str, Any]],
) -> dict[str, list[dict[str, Any]]]:
grouped: dict[str, list[dict[str, Any]]] = {}
for registration in registrations:
grouped.setdefault(store.provider_of(registration), []).append(registration)
return grouped
async def notify_user(user_uid: str, payload: dict[str, Any]) -> None:
registrations = store.active_for_user(user_uid)
if not registrations:
logger.debug("No active push subscriptions for user %s", user_uid)
return
grouped = group_by_provider(registrations)
async with stealth.stealth_async_client(timeout=timeout_seconds()) as client:
for name, rows in grouped.items():
provider = providers.PROVIDERS.get(name)
if provider is None:
logger.warning(
"Unknown push provider %s on %s subscriptions of user %s",
name,
len(rows),
user_uid,
)
continue
if not providers.is_active(provider):
logger.debug(
"Push provider %s is not active; skipping %s subscriptions",
name,
len(rows),
)
continue
try:
prepared = provider.prepare(payload)
except Exception as exc:
logger.error("Push provider %s could not build a payload: %s", name, exc)
continue
for registration in rows:
await _deliver_one(provider, client, registration, prepared, user_uid)
async def _deliver_one(provider, client, registration, prepared, user_uid) -> None:
try:
outcome = await provider.deliver(client, registration, prepared)
except Exception as exc:
logger.error("Push provider %s raised for %s: %s", provider.name, user_uid, exc)
return
if outcome.status == providers.ACCEPTED:
logger.debug("Push delivered to %s via %s", user_uid, provider.name)
return
if outcome.status == providers.DEAD:
try:
store.mark_dead(registration["id"])
except Exception as exc:
logger.error("Could not soft-delete push subscription: %s", exc)
return
logger.warning(
"Push rejected by %s for %s: %s", provider.name, user_uid, outcome.detail
)