f42042ccb7
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Combines shared, blog, market, cart, events, federation, and account into a single repository. Eliminates submodule sync, sibling model copying at build time, and per-app CI orchestration. Changes: - Remove per-app .git, .gitmodules, .gitea, submodule shared/ dirs - Remove stale sibling model copies from each app - Update all 6 Dockerfiles for monorepo build context (root = .) - Add build directives to docker-compose.yml - Add single .gitea/workflows/ci.yml with change detection - Add .dockerignore for monorepo build context - Create __init__.py for federation and account (cross-app imports)
127 lines
4.1 KiB
Python
127 lines
4.1 KiB
Python
"""
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Unified activity bus.
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emit_activity() writes an APActivity row with process_state='pending' within
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the caller's existing DB transaction — atomic with the domain change.
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register_activity_handler() registers async handler functions that the
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EventProcessor dispatches when processing pending activities.
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"""
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from __future__ import annotations
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import logging
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import uuid
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from collections import defaultdict
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from typing import Awaitable, Callable, Dict, List, Tuple
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from sqlalchemy import text
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from sqlalchemy.ext.asyncio import AsyncSession
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from shared.models.federation import APActivity
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log = logging.getLogger(__name__)
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# ---------------------------------------------------------------------------
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# Activity-handler registry
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# ---------------------------------------------------------------------------
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# Handler signature: async def handler(activity: APActivity, session: AsyncSession) -> None
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ActivityHandlerFn = Callable[[APActivity, AsyncSession], Awaitable[None]]
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# Keyed by (activity_type, object_type). object_type="*" is wildcard.
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_activity_handlers: Dict[Tuple[str, str], List[ActivityHandlerFn]] = defaultdict(list)
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def register_activity_handler(
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activity_type: str,
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fn: ActivityHandlerFn,
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*,
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object_type: str | None = None,
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) -> None:
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"""Register an async handler for an activity type + optional object type.
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Use ``activity_type="*"`` as a wildcard that fires for every activity
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(e.g. federation delivery handler).
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"""
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key = (activity_type, object_type or "*")
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_activity_handlers[key].append(fn)
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log.info("Registered activity handler %s.%s for key %s", fn.__module__, fn.__qualname__, key)
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def get_activity_handlers(
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activity_type: str,
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object_type: str | None = None,
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) -> List[ActivityHandlerFn]:
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"""Return all matching handlers for an activity.
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Matches in order:
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1. Exact (activity_type, object_type)
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2. (activity_type, "*") — type-level wildcard
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3. ("*", "*") — global wildcard (e.g. delivery)
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"""
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handlers: List[ActivityHandlerFn] = []
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ot = object_type or "*"
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# Exact match
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if ot != "*":
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handlers.extend(_activity_handlers.get((activity_type, ot), []))
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# Type-level wildcard
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handlers.extend(_activity_handlers.get((activity_type, "*"), []))
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# Global wildcard
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if activity_type != "*":
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handlers.extend(_activity_handlers.get(("*", "*"), []))
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return handlers
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# ---------------------------------------------------------------------------
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# emit_activity — the primary way to emit events
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# ---------------------------------------------------------------------------
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async def emit_activity(
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session: AsyncSession,
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*,
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activity_type: str,
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actor_uri: str,
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object_type: str,
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object_data: dict | None = None,
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source_type: str | None = None,
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source_id: int | None = None,
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visibility: str = "internal",
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actor_profile_id: int | None = None,
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origin_app: str | None = None,
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) -> APActivity:
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"""
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Write an AP-shaped activity to ap_activities with process_state='pending'.
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Called inside a service function using the same session that performs the
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domain change. The activity and the change commit together.
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"""
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if not origin_app:
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try:
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from quart import current_app
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origin_app = current_app.name
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except (ImportError, RuntimeError):
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pass
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activity_uri = f"internal:{uuid.uuid4()}" if visibility == "internal" else f"urn:uuid:{uuid.uuid4()}"
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activity = APActivity(
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activity_id=activity_uri,
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activity_type=activity_type,
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actor_profile_id=actor_profile_id,
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actor_uri=actor_uri,
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object_type=object_type,
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object_data=object_data or {},
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is_local=True,
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source_type=source_type,
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source_id=source_id,
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visibility=visibility,
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process_state="pending",
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origin_app=origin_app,
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)
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session.add(activity)
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await session.flush()
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# Wake any listening EventProcessor as soon as this transaction commits.
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# NOTIFY is transactional — delivered only after commit.
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await session.execute(text("NOTIFY ap_activity_pending"))
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return activity
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