9a8b556c13
- Stable object ID per source (Post#123 always gets the same id) instead of deriving from activity UUID - Dedup Update activities (Ghost fires duplicate webhooks) - Use setdefault for object id in delivery handler Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
83 lines
2.8 KiB
Python
83 lines
2.8 KiB
Python
"""Inline federation publication — called at write time, not via async handler.
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Replaces the old pattern where emit_event("post.published") → async handler →
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publish_activity(). Now the originating service calls try_publish() directly,
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which creates the APActivity in the same DB transaction. AP delivery
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(federation.activity_created → inbox POST) stays async.
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"""
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from __future__ import annotations
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import logging
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import os
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from sqlalchemy.ext.asyncio import AsyncSession
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from shared.services.registry import services
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log = logging.getLogger(__name__)
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async def try_publish(
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session: AsyncSession,
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*,
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user_id: int | None,
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activity_type: str,
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object_type: str,
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object_data: dict,
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source_type: str,
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source_id: int,
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) -> None:
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"""Publish an AP activity if federation is available and user has a profile.
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Safe to call from any app — returns silently if federation isn't wired
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or the user has no actor profile.
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"""
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if not services.has("federation"):
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return
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if not user_id:
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return
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actor = await services.federation.get_actor_by_user_id(session, user_id)
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if not actor:
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return
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# Dedup: don't re-Create if already published, don't re-Delete if already deleted
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existing = await services.federation.get_activity_for_source(
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session, source_type, source_id,
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)
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if existing:
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if activity_type == "Create" and existing.activity_type != "Delete":
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return # already published (allow re-Create after Delete/unpublish)
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if activity_type == "Update" and existing.activity_type == "Update":
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return # already updated (Ghost fires duplicate webhooks)
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if activity_type == "Delete" and existing.activity_type == "Delete":
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return # already deleted
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elif activity_type in ("Delete", "Update"):
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return # never published, nothing to delete/update
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# Stable object ID: same source always gets the same object id so
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# Mastodon treats Create/Update/Delete as the same post.
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domain = os.getenv("AP_DOMAIN", "rose-ash.com")
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object_data["id"] = (
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f"https://{domain}/users/{actor.preferred_username}"
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f"/objects/{source_type.lower()}/{source_id}"
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)
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try:
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await services.federation.publish_activity(
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session,
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actor_user_id=user_id,
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activity_type=activity_type,
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object_type=object_type,
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object_data=object_data,
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source_type=source_type,
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source_id=source_id,
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)
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log.info(
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"Published %s/%s for %s#%d by user %d",
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activity_type, object_type, source_type, source_id, user_id,
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)
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except Exception:
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log.exception("Failed to publish activity for %s#%d", source_type, source_id)
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