mirror of
https://github.com/jointakahe/takahe.git
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216 lines
9.4 KiB
Python
216 lines
9.4 KiB
Python
from asgiref.sync import sync_to_async
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from django.db import models
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from stator.models import State, StateField, StateGraph, StatorModel
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class InboxMessageStates(StateGraph):
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received = State(try_interval=300, delete_after=86400 * 3)
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processed = State(externally_progressed=True, delete_after=86400)
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purge = State(delete_after=24 * 60 * 60) # Delete after release (back compat)
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received.transitions_to(processed)
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processed.transitions_to(purge) # Delete after release (back compat)
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@classmethod
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async def handle_received(cls, instance: "InboxMessage"):
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from activities.models import Post, PostInteraction, TimelineEvent
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from users.models import Block, Follow, Identity, Report
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from users.services import IdentityService
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match instance.message_type:
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case "follow":
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await sync_to_async(Follow.handle_request_ap)(instance.message)
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case "block":
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await sync_to_async(Block.handle_ap)(instance.message)
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case "announce":
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await sync_to_async(PostInteraction.handle_ap)(instance.message)
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case "like":
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await sync_to_async(PostInteraction.handle_ap)(instance.message)
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case "create":
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match instance.message_object_type:
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case "note":
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if instance.message_object_has_content:
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await sync_to_async(Post.handle_create_ap)(instance.message)
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else:
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# Notes without content are Interaction candidates
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await sync_to_async(PostInteraction.handle_ap)(
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instance.message
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)
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case "question":
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await sync_to_async(Post.handle_create_ap)(instance.message)
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case unknown:
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if unknown in Post.Types.names:
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await sync_to_async(Post.handle_create_ap)(instance.message)
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case "update":
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match instance.message_object_type:
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case "note":
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await sync_to_async(Post.handle_update_ap)(instance.message)
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case "person":
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await sync_to_async(Identity.handle_update_ap)(instance.message)
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case "service":
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await sync_to_async(Identity.handle_update_ap)(instance.message)
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case "group":
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await sync_to_async(Identity.handle_update_ap)(instance.message)
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case "organization":
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await sync_to_async(Identity.handle_update_ap)(instance.message)
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case "application":
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await sync_to_async(Identity.handle_update_ap)(instance.message)
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case "question":
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await sync_to_async(Post.handle_update_ap)(instance.message)
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case unknown:
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if unknown in Post.Types.names:
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await sync_to_async(Post.handle_update_ap)(instance.message)
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case "accept":
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match instance.message_object_type:
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case "follow":
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await sync_to_async(Follow.handle_accept_ap)(instance.message)
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case None:
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# It's a string object, but these will only be for Follows
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await sync_to_async(Follow.handle_accept_ap)(instance.message)
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case unknown:
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raise ValueError(
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f"Cannot handle activity of type accept.{unknown}"
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)
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case "reject":
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match instance.message_object_type:
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case "follow":
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await sync_to_async(Follow.handle_reject_ap)(instance.message)
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case None:
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# It's a string object, but these will only be for Follows
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await sync_to_async(Follow.handle_reject_ap)(instance.message)
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case unknown:
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raise ValueError(
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f"Cannot handle activity of type reject.{unknown}"
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)
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case "undo":
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match instance.message_object_type:
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case "follow":
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await sync_to_async(Follow.handle_undo_ap)(instance.message)
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case "block":
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await sync_to_async(Block.handle_undo_ap)(instance.message)
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case "like":
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await sync_to_async(PostInteraction.handle_undo_ap)(
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instance.message
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)
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case "announce":
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await sync_to_async(PostInteraction.handle_undo_ap)(
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instance.message
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)
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case "http://litepub.social/ns#emojireact":
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# We're ignoring emoji reactions for now
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pass
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case unknown:
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raise ValueError(
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f"Cannot handle activity of type undo.{unknown}"
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)
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case "delete":
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# If there is no object type, we need to see if it's a profile or a post
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if not isinstance(instance.message["object"], dict):
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if await Identity.objects.filter(
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actor_uri=instance.message["object"]
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).aexists():
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await sync_to_async(Identity.handle_delete_ap)(instance.message)
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elif await Post.objects.filter(
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object_uri=instance.message["object"]
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).aexists():
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await sync_to_async(Post.handle_delete_ap)(instance.message)
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else:
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# It is presumably already deleted
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pass
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else:
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match instance.message_object_type:
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case "tombstone":
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await sync_to_async(Post.handle_delete_ap)(instance.message)
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case "note":
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await sync_to_async(Post.handle_delete_ap)(instance.message)
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case unknown:
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raise ValueError(
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f"Cannot handle activity of type delete.{unknown}"
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)
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case "add":
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await sync_to_async(PostInteraction.handle_add_ap)(instance.message)
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case "remove":
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await sync_to_async(PostInteraction.handle_remove_ap)(instance.message)
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case "move":
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# We're ignoring moves for now
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pass
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case "http://litepub.social/ns#emojireact":
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# We're ignoring emoji reactions for now
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pass
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case "flag":
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# Received reports
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await sync_to_async(Report.handle_ap)(instance.message)
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case "__internal__":
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match instance.message_object_type:
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case "fetchpost":
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await sync_to_async(Post.handle_fetch_internal)(
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instance.message["object"]
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)
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case "cleartimeline":
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await sync_to_async(TimelineEvent.handle_clear_timeline)(
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instance.message["object"]
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)
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case "addfollow":
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await sync_to_async(IdentityService.handle_internal_add_follow)(
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instance.message["object"]
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)
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case unknown:
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raise ValueError(
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f"Cannot handle activity of type __internal__.{unknown}"
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)
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case unknown:
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raise ValueError(f"Cannot handle activity of type {unknown}")
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return cls.processed
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class InboxMessage(StatorModel):
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"""
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an incoming inbox message that needs processing.
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Yes, this is kind of its own message queue built on the state graph system.
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It's fine. It'll scale up to a decent point.
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"""
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message = models.JSONField()
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state = StateField(InboxMessageStates)
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@classmethod
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def create_internal(cls, payload):
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"""
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Creates an internal action message
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"""
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cls.objects.create(
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message={
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"type": "__internal__",
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"object": payload,
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}
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)
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@property
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def message_type(self):
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return self.message["type"].lower()
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@property
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def message_object_type(self) -> str | None:
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if isinstance(self.message["object"], dict):
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return self.message["object"]["type"].lower()
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else:
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return None
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@property
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def message_type_full(self):
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if isinstance(self.message.get("object"), dict):
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return f"{self.message_type}.{self.message_object_type}"
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else:
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return f"{self.message_type}"
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@property
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def message_actor(self):
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return self.message.get("actor")
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@property
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def message_object_has_content(self):
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object = self.message.get("object", {})
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return "content" in object or "contentMap" in object
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