mirror of https://git.sr.ht/~tsileo/microblog.pub
297 lines
8.8 KiB
Python
297 lines
8.8 KiB
Python
import hashlib
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from datetime import datetime
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from functools import cached_property
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from typing import Any
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import pydantic
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from markdown import markdown
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from app import activitypub as ap
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from app.actor import LOCAL_ACTOR
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from app.actor import Actor
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from app.actor import RemoteActor
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from app.media import proxied_media_url
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from app.utils.datetime import now
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from app.utils.datetime import parse_isoformat
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class Object:
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@property
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def is_from_db(self) -> bool:
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return False
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@property
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def is_from_outbox(self) -> bool:
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return False
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@property
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def is_from_inbox(self) -> bool:
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return False
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@cached_property
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def ap_type(self) -> str:
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return self.ap_object["type"]
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@property
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def ap_object(self) -> ap.RawObject:
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raise NotImplementedError
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@property
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def ap_id(self) -> str:
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return ap.get_id(self.ap_object["id"])
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@property
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def ap_actor_id(self) -> str:
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return ap.get_actor_id(self.ap_object)
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@cached_property
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def ap_published_at(self) -> datetime | None:
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# TODO: default to None? or now()?
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if "published" in self.ap_object:
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return parse_isoformat(self.ap_object["published"])
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elif "created" in self.ap_object:
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return parse_isoformat(self.ap_object["created"])
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return None
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@property
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def actor(self) -> Actor:
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raise NotImplementedError()
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@cached_property
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def visibility(self) -> ap.VisibilityEnum:
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return ap.object_visibility(self.ap_object, self.actor)
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@property
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def ap_context(self) -> str | None:
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return self.ap_object.get("context") or self.ap_object.get("conversation")
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@property
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def sensitive(self) -> bool:
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return self.ap_object.get("sensitive", False)
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@property
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def tags(self) -> list[ap.RawObject]:
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return ap.as_list(self.ap_object.get("tag", []))
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@cached_property
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def attachments(self) -> list["Attachment"]:
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attachments = []
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for obj in ap.as_list(self.ap_object.get("attachment", [])):
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if obj.get("type") == "Link":
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attachments.append(
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Attachment.parse_obj(
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{
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"proxiedUrl": None,
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"resizedUrl": None,
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"mediaType": None,
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"type": "Link",
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"url": obj["href"],
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}
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)
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)
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continue
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proxied_url = proxied_media_url(obj["url"])
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attachments.append(
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Attachment.parse_obj(
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{
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"proxiedUrl": proxied_url,
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"resizedUrl": proxied_url + "/740"
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if obj["mediaType"].startswith("image")
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else None,
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**obj,
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}
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)
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)
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# Also add any video Link (for PeerTube compat)
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if self.ap_type == "Video":
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for link in ap.as_list(self.ap_object.get("url", [])):
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if (isinstance(link, dict)) and link.get("type") == "Link":
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if link.get("mediaType", "").startswith("video"):
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proxied_url = proxied_media_url(link["href"])
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attachments.append(
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Attachment(
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type="Video",
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mediaType=link["mediaType"],
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url=link["href"],
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proxiedUrl=proxied_url,
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)
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)
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break
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elif link.get("mediaType", "") == "application/x-mpegURL":
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for tag in ap.as_list(link.get("tag", [])):
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if tag.get("mediaType", "").startswith("video"):
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proxied_url = proxied_media_url(tag["href"])
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attachments.append(
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Attachment(
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type="Video",
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mediaType=tag["mediaType"],
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url=tag["href"],
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proxiedUrl=proxied_url,
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)
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)
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break
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return attachments
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@cached_property
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def url(self) -> str | None:
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obj_url = self.ap_object.get("url")
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if isinstance(obj_url, str):
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return obj_url
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elif obj_url:
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for u in ap.as_list(obj_url):
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if u.get("type") == "Link":
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return u["href"]
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if u["mediaType"] == "text/html":
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return u["href"]
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return self.ap_id
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@cached_property
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def content(self) -> str | None:
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content = self.ap_object.get("content")
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if not content:
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return None
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# PeerTube returns the content as markdown
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if self.ap_object.get("mediaType") == "text/markdown":
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return markdown(content, extensions=["mdx_linkify"])
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return content
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@property
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def summary(self) -> str | None:
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return self.ap_object.get("summary")
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@property
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def name(self) -> str | None:
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return self.ap_object.get("name")
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@cached_property
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def permalink_id(self) -> str:
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return (
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"permalink-"
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+ hashlib.md5(
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self.ap_id.encode(),
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usedforsecurity=False,
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).hexdigest()
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)
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@property
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def activity_object_ap_id(self) -> str | None:
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if "object" in self.ap_object:
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return ap.get_id(self.ap_object["object"])
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return None
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@property
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def in_reply_to(self) -> str | None:
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return self.ap_object.get("inReplyTo")
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@property
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def has_ld_signature(self) -> bool:
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return bool(self.ap_object.get("signature"))
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@property
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def is_poll_ended(self) -> bool:
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if self.poll_end_time:
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return now() > self.poll_end_time
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return False
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@cached_property
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def poll_items(self) -> list[ap.RawObject] | None:
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return self.ap_object.get("oneOf") or self.ap_object.get("anyOf")
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@cached_property
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def poll_end_time(self) -> datetime | None:
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# Some polls may not have an end time
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if self.ap_object.get("endTime"):
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return parse_isoformat(self.ap_object["endTime"])
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return None
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@cached_property
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def poll_voters_count(self) -> int | None:
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if not self.poll_items:
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return None
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# Only Mastodon set this attribute
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if self.ap_object.get("votersCount"):
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return self.ap_object["votersCount"]
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else:
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voters_count = 0
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for item in self.poll_items:
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voters_count += item.get("replies", {}).get("totalItems", 0)
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return voters_count
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@cached_property
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def is_one_of_poll(self) -> bool:
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return bool(self.ap_object.get("oneOf"))
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def _to_camel(string: str) -> str:
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cased = "".join(word.capitalize() for word in string.split("_"))
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return cased[0:1].lower() + cased[1:]
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class BaseModel(pydantic.BaseModel):
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class Config:
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alias_generator = _to_camel
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class Attachment(BaseModel):
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type: str
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media_type: str | None
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name: str | None
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url: str
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# Extra fields for the templates (and only for media)
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proxied_url: str | None = None
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resized_url: str | None = None
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class RemoteObject(Object):
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def __init__(self, raw_object: ap.RawObject, actor: Actor):
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self._raw_object = raw_object
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self._actor = actor
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if self._actor.ap_id != ap.get_actor_id(self._raw_object):
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raise ValueError(f"Invalid actor {self._actor.ap_id}")
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@classmethod
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async def from_raw_object(
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cls,
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raw_object: ap.RawObject,
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actor: Actor | None = None,
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):
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# Pre-fetch the actor
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actor_id = ap.get_actor_id(raw_object)
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if actor_id == LOCAL_ACTOR.ap_id:
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_actor = LOCAL_ACTOR
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elif actor:
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if actor.ap_id != actor_id:
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raise ValueError(
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f"Invalid actor, got {actor.ap_id}, " f"expected {actor_id}"
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)
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_actor = actor # type: ignore
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else:
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_actor = RemoteActor(
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ap_actor=await ap.fetch(ap.get_actor_id(raw_object)),
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)
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return cls(raw_object, _actor)
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@property
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def og_meta(self) -> list[dict[str, Any]] | None:
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return None
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@property
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def ap_object(self) -> ap.RawObject:
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return self._raw_object
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@property
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def actor(self) -> Actor:
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return self._actor
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