mirror of
https://github.com/jointakahe/takahe.git
synced 2024-11-11 01:41:05 +00:00
852 lines
30 KiB
Python
852 lines
30 KiB
Python
import re
|
|
from collections.abc import Iterable
|
|
from typing import Optional
|
|
|
|
import httpx
|
|
import urlman
|
|
from asgiref.sync import async_to_sync, sync_to_async
|
|
from django.conf import settings
|
|
from django.contrib.postgres.indexes import GinIndex
|
|
from django.db import models, transaction
|
|
from django.template.defaultfilters import linebreaks_filter
|
|
from django.utils import timezone
|
|
from django.utils.safestring import mark_safe
|
|
|
|
from activities.models.emoji import Emoji
|
|
from activities.models.fan_out import FanOut
|
|
from activities.models.hashtag import Hashtag
|
|
from activities.templatetags.emoji_tags import imageify_emojis
|
|
from core.html import sanitize_post, strip_html
|
|
from core.ld import canonicalise, format_ld_date, get_list, parse_ld_date
|
|
from stator.models import State, StateField, StateGraph, StatorModel
|
|
from users.models.identity import Identity, IdentityStates
|
|
from users.models.system_actor import SystemActor
|
|
|
|
|
|
class PostStates(StateGraph):
|
|
new = State(try_interval=300)
|
|
fanned_out = State(externally_progressed=True)
|
|
deleted = State(try_interval=300)
|
|
deleted_fanned_out = State()
|
|
|
|
edited = State(try_interval=300)
|
|
edited_fanned_out = State(externally_progressed=True)
|
|
|
|
new.transitions_to(fanned_out)
|
|
fanned_out.transitions_to(deleted)
|
|
fanned_out.transitions_to(edited)
|
|
|
|
deleted.transitions_to(deleted_fanned_out)
|
|
edited.transitions_to(edited_fanned_out)
|
|
edited_fanned_out.transitions_to(edited)
|
|
edited_fanned_out.transitions_to(deleted)
|
|
|
|
@classmethod
|
|
async def targets_fan_out(cls, post: "Post", type_: str) -> None:
|
|
# Fan out to each target
|
|
for follow in await post.aget_targets():
|
|
await FanOut.objects.acreate(
|
|
identity=follow,
|
|
type=type_,
|
|
subject_post=post,
|
|
)
|
|
|
|
@classmethod
|
|
async def handle_new(cls, instance: "Post"):
|
|
"""
|
|
Creates all needed fan-out objects for a new Post.
|
|
"""
|
|
post = await instance.afetch_full()
|
|
await cls.targets_fan_out(post, FanOut.Types.post)
|
|
await post.ensure_hashtags()
|
|
return cls.fanned_out
|
|
|
|
@classmethod
|
|
async def handle_deleted(cls, instance: "Post"):
|
|
"""
|
|
Creates all needed fan-out objects needed to delete a Post.
|
|
"""
|
|
post = await instance.afetch_full()
|
|
await cls.targets_fan_out(post, FanOut.Types.post_deleted)
|
|
return cls.deleted_fanned_out
|
|
|
|
@classmethod
|
|
async def handle_edited(cls, instance: "Post"):
|
|
"""
|
|
Creates all needed fan-out objects for an edited Post.
|
|
"""
|
|
post = await instance.afetch_full()
|
|
await cls.targets_fan_out(post, FanOut.Types.post_edited)
|
|
await post.ensure_hashtags()
|
|
return cls.edited_fanned_out
|
|
|
|
|
|
class PostQuerySet(models.QuerySet):
|
|
def not_hidden(self):
|
|
query = self.exclude(
|
|
state__in=[PostStates.deleted, PostStates.deleted_fanned_out]
|
|
)
|
|
return query
|
|
|
|
def public(self, include_replies: bool = False):
|
|
query = self.filter(
|
|
visibility__in=[
|
|
Post.Visibilities.public,
|
|
Post.Visibilities.local_only,
|
|
],
|
|
)
|
|
if not include_replies:
|
|
return query.filter(in_reply_to__isnull=True)
|
|
return query
|
|
|
|
def local_public(self, include_replies: bool = False):
|
|
query = self.filter(
|
|
visibility__in=[
|
|
Post.Visibilities.public,
|
|
Post.Visibilities.local_only,
|
|
],
|
|
author__local=True,
|
|
)
|
|
if not include_replies:
|
|
return query.filter(in_reply_to__isnull=True)
|
|
return query
|
|
|
|
def unlisted(self, include_replies: bool = False):
|
|
query = self.filter(
|
|
visibility__in=[
|
|
Post.Visibilities.public,
|
|
Post.Visibilities.local_only,
|
|
Post.Visibilities.unlisted,
|
|
],
|
|
)
|
|
if not include_replies:
|
|
return query.filter(in_reply_to__isnull=True)
|
|
return query
|
|
|
|
def tagged_with(self, hashtag: str | Hashtag):
|
|
if isinstance(hashtag, str):
|
|
tag_q = models.Q(hashtags__contains=hashtag)
|
|
else:
|
|
tag_q = models.Q(hashtags__contains=hashtag.hashtag)
|
|
if hashtag.aliases:
|
|
for alias in hashtag.aliases:
|
|
tag_q |= models.Q(hashtags__contains=alias)
|
|
return self.filter(tag_q)
|
|
|
|
|
|
class PostManager(models.Manager):
|
|
def get_queryset(self):
|
|
return PostQuerySet(self.model, using=self._db)
|
|
|
|
def not_hidden(self):
|
|
return self.get_queryset().not_hidden()
|
|
|
|
def public(self, include_replies: bool = False):
|
|
return self.get_queryset().public(include_replies=include_replies)
|
|
|
|
def local_public(self, include_replies: bool = False):
|
|
return self.get_queryset().local_public(include_replies=include_replies)
|
|
|
|
def unlisted(self, include_replies: bool = False):
|
|
return self.get_queryset().unlisted(include_replies=include_replies)
|
|
|
|
def tagged_with(self, hashtag: str | Hashtag):
|
|
return self.get_queryset().tagged_with(hashtag=hashtag)
|
|
|
|
|
|
class Post(StatorModel):
|
|
"""
|
|
A post (status, toot) that is either local or remote.
|
|
"""
|
|
|
|
class Visibilities(models.IntegerChoices):
|
|
public = 0
|
|
local_only = 4
|
|
unlisted = 1
|
|
followers = 2
|
|
mentioned = 3
|
|
|
|
# The author (attributedTo) of the post
|
|
author = models.ForeignKey(
|
|
"users.Identity",
|
|
on_delete=models.CASCADE,
|
|
related_name="posts",
|
|
)
|
|
|
|
# The state the post is in
|
|
state = StateField(PostStates)
|
|
|
|
# If it is our post or not
|
|
local = models.BooleanField()
|
|
|
|
# The canonical object ID
|
|
object_uri = models.CharField(max_length=500, blank=True, null=True, unique=True)
|
|
|
|
# Who should be able to see this Post
|
|
visibility = models.IntegerField(
|
|
choices=Visibilities.choices,
|
|
default=Visibilities.public,
|
|
)
|
|
|
|
# The main (HTML) content
|
|
content = models.TextField()
|
|
|
|
# If the contents of the post are sensitive, and the summary (content
|
|
# warning) to show if it is
|
|
sensitive = models.BooleanField(default=False)
|
|
summary = models.TextField(blank=True, null=True)
|
|
|
|
# The public, web URL of this Post on the original server
|
|
url = models.CharField(max_length=500, blank=True, null=True)
|
|
|
|
# The Post it is replying to as an AP ID URI
|
|
# (as otherwise we'd have to pull entire threads to use IDs)
|
|
in_reply_to = models.CharField(max_length=500, blank=True, null=True)
|
|
|
|
# The identities the post is directly to (who can see it if not public)
|
|
to = models.ManyToManyField(
|
|
"users.Identity",
|
|
related_name="posts_to",
|
|
blank=True,
|
|
)
|
|
|
|
# The identities mentioned in the post
|
|
mentions = models.ManyToManyField(
|
|
"users.Identity",
|
|
related_name="posts_mentioning",
|
|
blank=True,
|
|
)
|
|
|
|
# Hashtags in the post
|
|
hashtags = models.JSONField(blank=True, null=True)
|
|
|
|
emojis = models.ManyToManyField(
|
|
"activities.Emoji",
|
|
related_name="posts_using_emoji",
|
|
blank=True,
|
|
)
|
|
|
|
# When the post was originally created (as opposed to when we received it)
|
|
published = models.DateTimeField(default=timezone.now)
|
|
|
|
# If the post has been edited after initial publication
|
|
edited = models.DateTimeField(blank=True, null=True)
|
|
|
|
created = models.DateTimeField(auto_now_add=True)
|
|
updated = models.DateTimeField(auto_now=True)
|
|
|
|
objects = PostManager()
|
|
|
|
class Meta:
|
|
indexes = [
|
|
GinIndex(fields=["hashtags"], name="hashtags_gin"),
|
|
]
|
|
|
|
class urls(urlman.Urls):
|
|
view = "{self.author.urls.view}posts/{self.id}/"
|
|
object_uri = "{self.author.actor_uri}posts/{self.id}/"
|
|
action_like = "{view}like/"
|
|
action_unlike = "{view}unlike/"
|
|
action_boost = "{view}boost/"
|
|
action_unboost = "{view}unboost/"
|
|
action_delete = "{view}delete/"
|
|
action_edit = "{view}edit/"
|
|
action_reply = "/compose/?reply_to={self.id}"
|
|
admin_edit = "/djadmin/activities/post/{self.id}/change/"
|
|
|
|
def get_scheme(self, url):
|
|
return "https"
|
|
|
|
def get_hostname(self, url):
|
|
return self.instance.author.domain.uri_domain
|
|
|
|
def __str__(self):
|
|
return f"{self.author} #{self.id}"
|
|
|
|
def get_absolute_url(self):
|
|
return self.urls.view
|
|
|
|
def absolute_object_uri(self):
|
|
"""
|
|
Returns an object URI that is always absolute, for sending out to
|
|
other servers.
|
|
"""
|
|
if self.local:
|
|
return self.author.absolute_profile_uri() + f"posts/{self.id}/"
|
|
else:
|
|
return self.object_uri
|
|
|
|
def in_reply_to_post(self) -> Optional["Post"]:
|
|
"""
|
|
Returns the actual Post object we're replying to, if we can find it
|
|
"""
|
|
if self.in_reply_to is None:
|
|
return None
|
|
return (
|
|
Post.objects.filter(object_uri=self.in_reply_to)
|
|
.select_related("author")
|
|
.first()
|
|
)
|
|
|
|
ain_reply_to_post = sync_to_async(in_reply_to_post)
|
|
|
|
### Content cleanup and extraction ###
|
|
|
|
mention_regex = re.compile(
|
|
r"(^|[^\w\d\-_])@([\w\d\-_]+(?:@[\w\d\-_]+\.[\w\d\-_\.]+)?)"
|
|
)
|
|
|
|
def linkify_mentions(self, content: str, local: bool = False) -> str:
|
|
"""
|
|
Links mentions _in the context of the post_ - as in, using the mentions
|
|
property as the only source (as we might be doing this without other
|
|
DB access allowed)
|
|
"""
|
|
|
|
possible_matches = {}
|
|
for mention in self.mentions.all():
|
|
if local:
|
|
url = str(mention.urls.view)
|
|
else:
|
|
url = mention.absolute_profile_uri()
|
|
possible_matches[mention.username] = url
|
|
possible_matches[f"{mention.username}@{mention.domain_id}"] = url
|
|
|
|
collapse_name: dict[str, str] = {}
|
|
|
|
def replacer(match):
|
|
precursor = match.group(1)
|
|
handle = match.group(2).lower()
|
|
if "@" in handle:
|
|
short_handle = handle.split("@", 1)[0]
|
|
else:
|
|
short_handle = handle
|
|
if handle in possible_matches:
|
|
if short_handle not in collapse_name:
|
|
collapse_name[short_handle] = handle
|
|
elif collapse_name.get(short_handle) != handle:
|
|
short_handle = handle
|
|
return f'{precursor}<a href="{possible_matches[handle]}">@{short_handle}</a>'
|
|
else:
|
|
return match.group()
|
|
|
|
return mark_safe(self.mention_regex.sub(replacer, content))
|
|
|
|
def safe_content_local(self):
|
|
"""
|
|
Returns the content formatted for local display
|
|
"""
|
|
return imageify_emojis(
|
|
Hashtag.linkify_hashtags(
|
|
self.linkify_mentions(sanitize_post(self.content), local=True)
|
|
),
|
|
self.author.domain,
|
|
)
|
|
|
|
def safe_content_remote(self):
|
|
"""
|
|
Returns the content formatted for remote consumption
|
|
"""
|
|
return self.linkify_mentions(sanitize_post(self.content))
|
|
|
|
def safe_content_plain(self):
|
|
"""
|
|
Returns the content formatted as plain text
|
|
"""
|
|
return self.linkify_mentions(sanitize_post(self.content))
|
|
|
|
### Async helpers ###
|
|
|
|
async def afetch_full(self) -> "Post":
|
|
"""
|
|
Returns a version of the object with all relations pre-loaded
|
|
"""
|
|
return (
|
|
await Post.objects.select_related("author", "author__domain")
|
|
.prefetch_related("mentions", "mentions__domain", "attachments")
|
|
.aget(pk=self.pk)
|
|
)
|
|
|
|
### Local creation/editing ###
|
|
|
|
@classmethod
|
|
def create_local(
|
|
cls,
|
|
author: Identity,
|
|
content: str,
|
|
summary: str | None = None,
|
|
sensitive: bool = False,
|
|
visibility: int = Visibilities.public,
|
|
reply_to: Optional["Post"] = None,
|
|
attachments: list | None = None,
|
|
) -> "Post":
|
|
with transaction.atomic():
|
|
# Find mentions in this post
|
|
mentions = cls.mentions_from_content(content, author)
|
|
if reply_to:
|
|
mentions.add(reply_to.author)
|
|
# Maintain local-only for replies
|
|
if reply_to.visibility == reply_to.Visibilities.local_only:
|
|
visibility = reply_to.Visibilities.local_only
|
|
# Find hashtags in this post
|
|
hashtags = Hashtag.hashtags_from_content(content) or None
|
|
# Find emoji in this post
|
|
emojis = Emoji.emojis_from_content(content, author.domain)
|
|
# Strip all HTML and apply linebreaks filter
|
|
content = linebreaks_filter(strip_html(content))
|
|
# Make the Post object
|
|
post = cls.objects.create(
|
|
author=author,
|
|
content=content,
|
|
summary=summary or None,
|
|
sensitive=bool(summary) or sensitive,
|
|
local=True,
|
|
visibility=visibility,
|
|
hashtags=hashtags,
|
|
in_reply_to=reply_to.object_uri if reply_to else None,
|
|
)
|
|
post.object_uri = post.urls.object_uri
|
|
post.url = post.absolute_object_uri()
|
|
post.mentions.set(mentions)
|
|
post.emojis.set(emojis)
|
|
if attachments:
|
|
post.attachments.set(attachments)
|
|
post.save()
|
|
return post
|
|
|
|
def edit_local(
|
|
self,
|
|
content: str,
|
|
summary: str | None = None,
|
|
visibility: int = Visibilities.public,
|
|
attachments: list | None = None,
|
|
):
|
|
with transaction.atomic():
|
|
# Strip all HTML and apply linebreaks filter
|
|
self.content = linebreaks_filter(strip_html(content))
|
|
self.summary = summary or None
|
|
self.sensitive = bool(summary)
|
|
self.visibility = visibility
|
|
self.edited = timezone.now()
|
|
self.hashtags = Hashtag.hashtags_from_content(content) or None
|
|
self.mentions.set(self.mentions_from_content(content, self.author))
|
|
self.emojis.set(Emoji.emojis_from_content(content, self.author.domain))
|
|
self.attachments.set(attachments or [])
|
|
self.save()
|
|
|
|
@classmethod
|
|
def mentions_from_content(cls, content, author) -> set[Identity]:
|
|
mention_hits = cls.mention_regex.findall(content)
|
|
mentions = set()
|
|
for precursor, handle in mention_hits:
|
|
handle = handle.lower()
|
|
if "@" in handle:
|
|
username, domain = handle.split("@", 1)
|
|
else:
|
|
username = handle
|
|
domain = author.domain_id
|
|
identity = Identity.by_username_and_domain(
|
|
username=username,
|
|
domain=domain,
|
|
fetch=True,
|
|
)
|
|
if identity is not None:
|
|
mentions.add(identity)
|
|
return mentions
|
|
|
|
async def ensure_hashtags(self) -> None:
|
|
"""
|
|
Ensure any of the already parsed hashtags from this Post
|
|
have a corresponding Hashtag record.
|
|
"""
|
|
# Ensure hashtags
|
|
if self.hashtags:
|
|
for hashtag in self.hashtags:
|
|
await Hashtag.objects.aget_or_create(
|
|
hashtag=hashtag,
|
|
)
|
|
|
|
### Actions ###
|
|
|
|
def interact_as(self, identity, type):
|
|
from activities.models import PostInteraction, PostInteractionStates
|
|
|
|
interaction = PostInteraction.objects.get_or_create(
|
|
type=type, identity=identity, post=self
|
|
)[0]
|
|
if interaction.state in [
|
|
PostInteractionStates.undone,
|
|
PostInteractionStates.undone_fanned_out,
|
|
]:
|
|
interaction.transition_perform(PostInteractionStates.new)
|
|
|
|
def uninteract_as(self, identity, type):
|
|
from activities.models import PostInteraction, PostInteractionStates
|
|
|
|
for interaction in PostInteraction.objects.filter(
|
|
type=type, identity=identity, post=self
|
|
):
|
|
interaction.transition_perform(PostInteractionStates.undone)
|
|
|
|
def like_as(self, identity):
|
|
from activities.models import PostInteraction
|
|
|
|
self.interact_as(identity, PostInteraction.Types.like)
|
|
|
|
def unlike_as(self, identity):
|
|
from activities.models import PostInteraction
|
|
|
|
self.uninteract_as(identity, PostInteraction.Types.like)
|
|
|
|
def boost_as(self, identity):
|
|
from activities.models import PostInteraction
|
|
|
|
self.interact_as(identity, PostInteraction.Types.boost)
|
|
|
|
def unboost_as(self, identity):
|
|
from activities.models import PostInteraction
|
|
|
|
self.uninteract_as(identity, PostInteraction.Types.boost)
|
|
|
|
### ActivityPub (outbound) ###
|
|
|
|
def to_ap(self) -> dict:
|
|
"""
|
|
Returns the AP JSON for this object
|
|
"""
|
|
value = {
|
|
"to": "as:Public",
|
|
"cc": [],
|
|
"type": "Note",
|
|
"id": self.object_uri,
|
|
"published": format_ld_date(self.published),
|
|
"attributedTo": self.author.actor_uri,
|
|
"content": self.safe_content_remote(),
|
|
"as:sensitive": self.sensitive,
|
|
"url": self.absolute_object_uri(),
|
|
"tag": [],
|
|
"attachment": [],
|
|
}
|
|
if self.summary:
|
|
value["summary"] = self.summary
|
|
if self.in_reply_to:
|
|
value["inReplyTo"] = self.in_reply_to
|
|
if self.edited:
|
|
value["updated"] = format_ld_date(self.edited)
|
|
# Mentions
|
|
for mention in self.mentions.all():
|
|
value["tag"].append(mention.to_ap_tag())
|
|
value["cc"].append(mention.actor_uri)
|
|
# Emoji
|
|
for emoji in self.emojis.all():
|
|
value["tag"].append(emoji.to_ap_tag())
|
|
# Attachments
|
|
for attachment in self.attachments.all():
|
|
value["attachment"].append(attachment.to_ap())
|
|
# Remove fields if they're empty
|
|
for field in ["cc", "tag", "attachment"]:
|
|
if not value[field]:
|
|
del value[field]
|
|
return value
|
|
|
|
def to_create_ap(self):
|
|
"""
|
|
Returns the AP JSON to create this object
|
|
"""
|
|
object = self.to_ap()
|
|
return {
|
|
"to": object["to"],
|
|
"cc": object.get("cc", []),
|
|
"type": "Create",
|
|
"id": self.object_uri + "#create",
|
|
"actor": self.author.actor_uri,
|
|
"object": object,
|
|
}
|
|
|
|
def to_update_ap(self):
|
|
"""
|
|
Returns the AP JSON to update this object
|
|
"""
|
|
object = self.to_ap()
|
|
return {
|
|
"to": object["to"],
|
|
"cc": object.get("cc", []),
|
|
"type": "Update",
|
|
"id": self.object_uri + "#update",
|
|
"actor": self.author.actor_uri,
|
|
"object": object,
|
|
}
|
|
|
|
def to_delete_ap(self):
|
|
"""
|
|
Returns the AP JSON to create this object
|
|
"""
|
|
object = self.to_ap()
|
|
return {
|
|
"to": object["to"],
|
|
"cc": object.get("cc", []),
|
|
"type": "Delete",
|
|
"id": self.object_uri + "#delete",
|
|
"actor": self.author.actor_uri,
|
|
"object": object,
|
|
}
|
|
|
|
async def aget_targets(self) -> Iterable[Identity]:
|
|
"""
|
|
Returns a list of Identities that need to see posts and their changes
|
|
"""
|
|
targets = set()
|
|
async for mention in self.mentions.all():
|
|
targets.add(mention)
|
|
# Then, if it's not mentions only, also deliver to followers
|
|
if self.visibility != Post.Visibilities.mentioned:
|
|
async for follower in self.author.inbound_follows.select_related("source"):
|
|
targets.add(follower.source)
|
|
# If it's a reply, always include the original author if we know them
|
|
reply_post = await self.ain_reply_to_post()
|
|
if reply_post:
|
|
targets.add(reply_post.author)
|
|
# If this is a remote post or local-only, filter to only include
|
|
# local identities
|
|
if not self.local or self.visibility == Post.Visibilities.local_only:
|
|
targets = {target for target in targets if target.local}
|
|
# If it's a local post, include the author
|
|
if self.local:
|
|
targets.add(self.author)
|
|
return targets
|
|
|
|
### ActivityPub (inbound) ###
|
|
|
|
@classmethod
|
|
def by_ap(cls, data, create=False, update=False) -> "Post":
|
|
"""
|
|
Retrieves a Post instance by its ActivityPub JSON object.
|
|
|
|
Optionally creates one if it's not present.
|
|
Raises KeyError if it's not found and create is False.
|
|
"""
|
|
# Do we have one with the right ID?
|
|
created = False
|
|
try:
|
|
post = cls.objects.select_related("author__domain").get(
|
|
object_uri=data["id"]
|
|
)
|
|
except cls.DoesNotExist:
|
|
if create:
|
|
# Resolve the author
|
|
author = Identity.by_actor_uri(data["attributedTo"], create=create)
|
|
post = cls.objects.create(
|
|
object_uri=data["id"],
|
|
author=author,
|
|
content=data["content"],
|
|
local=False,
|
|
)
|
|
created = True
|
|
else:
|
|
raise KeyError(f"No post with ID {data['id']}", data)
|
|
if update or created:
|
|
post.content = data["content"]
|
|
post.summary = data.get("summary")
|
|
post.sensitive = data.get("as:sensitive", False)
|
|
post.url = data.get("url")
|
|
post.published = parse_ld_date(data.get("published"))
|
|
post.edited = parse_ld_date(data.get("updated"))
|
|
post.in_reply_to = data.get("inReplyTo")
|
|
# Mentions and hashtags
|
|
post.hashtags = []
|
|
for tag in get_list(data, "tag"):
|
|
if tag["type"].lower() == "mention":
|
|
mention_identity = Identity.by_actor_uri(tag["href"], create=True)
|
|
post.mentions.add(mention_identity)
|
|
elif tag["type"].lower() == "as:hashtag":
|
|
post.hashtags.append(tag["name"].lower().lstrip("#"))
|
|
elif tag["type"].lower() == "http://joinmastodon.org/ns#emoji":
|
|
emoji = Emoji.by_ap_tag(post.author.domain, tag, create=True)
|
|
post.emojis.add(emoji)
|
|
else:
|
|
raise ValueError(f"Unknown tag type {tag['type']}")
|
|
# Visibility and to
|
|
# (a post is public if it's ever to/cc as:Public, otherwise we
|
|
# regard it as unlisted for now)
|
|
targets = get_list(data, "to") + get_list(data, "cc")
|
|
post.visibility = Post.Visibilities.unlisted
|
|
for target in targets:
|
|
if target.lower() == "as:public":
|
|
post.visibility = Post.Visibilities.public
|
|
# Attachments
|
|
# These have no IDs, so we have to wipe them each time
|
|
post.attachments.all().delete()
|
|
for attachment in get_list(data, "attachment"):
|
|
if "http://joinmastodon.org/ns#focalPoint" in attachment:
|
|
focal_x, focal_y = attachment[
|
|
"http://joinmastodon.org/ns#focalPoint"
|
|
]["@list"]
|
|
else:
|
|
focal_x, focal_y = None, None
|
|
post.attachments.create(
|
|
remote_url=attachment["url"],
|
|
mimetype=attachment["mediaType"],
|
|
name=attachment.get("name"),
|
|
width=attachment.get("width"),
|
|
height=attachment.get("height"),
|
|
blurhash=attachment.get("http://joinmastodon.org/ns#blurhash"),
|
|
focal_x=focal_x,
|
|
focal_y=focal_y,
|
|
)
|
|
post.save()
|
|
return post
|
|
|
|
@classmethod
|
|
def by_object_uri(cls, object_uri, fetch=False):
|
|
"""
|
|
Gets the post by URI - either looking up locally, or fetching
|
|
from the other end if it's not here.
|
|
"""
|
|
try:
|
|
return cls.objects.get(object_uri=object_uri)
|
|
except cls.DoesNotExist:
|
|
if fetch:
|
|
try:
|
|
response = async_to_sync(SystemActor().signed_request)(
|
|
method="get", uri=object_uri
|
|
)
|
|
except (httpx.RequestError, httpx.ConnectError):
|
|
raise cls.DoesNotExist(f"Could not fetch {object_uri}")
|
|
if response.status_code in [404, 410]:
|
|
raise cls.DoesNotExist(f"No post at {object_uri}")
|
|
if response.status_code >= 500:
|
|
raise cls.DoesNotExist(f"Server error fetching {object_uri}")
|
|
if response.status_code >= 400:
|
|
raise cls.DoesNotExist(
|
|
f"Error fetching post from {object_uri}: {response.status_code}",
|
|
{response.content},
|
|
)
|
|
post = cls.by_ap(
|
|
canonicalise(response.json(), include_security=True),
|
|
create=True,
|
|
update=True,
|
|
)
|
|
# We may need to fetch the author too
|
|
if post.author.state == IdentityStates.outdated:
|
|
async_to_sync(post.author.fetch_actor)()
|
|
return post
|
|
else:
|
|
raise cls.DoesNotExist(f"Cannot find Post with URI {object_uri}")
|
|
|
|
@classmethod
|
|
def handle_create_ap(cls, data):
|
|
"""
|
|
Handles an incoming create request
|
|
"""
|
|
with transaction.atomic():
|
|
# Ensure the Create actor is the Post's attributedTo
|
|
if data["actor"] != data["object"]["attributedTo"]:
|
|
raise ValueError("Create actor does not match its Post object", data)
|
|
# Create it, stator will fan it out locally
|
|
cls.by_ap(data["object"], create=True, update=True)
|
|
|
|
@classmethod
|
|
def handle_update_ap(cls, data):
|
|
"""
|
|
Handles an incoming update request
|
|
"""
|
|
with transaction.atomic():
|
|
# Ensure the Create actor is the Post's attributedTo
|
|
if data["actor"] != data["object"]["attributedTo"]:
|
|
raise ValueError("Create actor does not match its Post object", data)
|
|
# Find it and update it
|
|
cls.by_ap(data["object"], create=False, update=True)
|
|
|
|
@classmethod
|
|
def handle_delete_ap(cls, data):
|
|
"""
|
|
Handles an incoming delete request
|
|
"""
|
|
with transaction.atomic():
|
|
# Find our post by ID if we have one
|
|
try:
|
|
post = cls.by_object_uri(data["object"]["id"])
|
|
except cls.DoesNotExist:
|
|
# It's already been deleted
|
|
return
|
|
# Ensure the actor on the request authored the post
|
|
if not post.author.actor_uri == data["actor"]:
|
|
raise ValueError("Actor on delete does not match object")
|
|
post.delete()
|
|
|
|
def debug_fetch(self):
|
|
"""
|
|
Fetches the Post from its original URL again and updates us with it
|
|
"""
|
|
response = httpx.get(
|
|
self.object_uri,
|
|
headers={
|
|
"Accept": "application/json",
|
|
"User-Agent": settings.TAKAHE_USER_AGENT,
|
|
},
|
|
follow_redirects=True,
|
|
)
|
|
if 200 <= response.status_code < 300:
|
|
return self.by_ap(
|
|
canonicalise(response.json(), include_security=True),
|
|
update=True,
|
|
)
|
|
|
|
### Mastodon API ###
|
|
|
|
def to_mastodon_json(self, interactions=None):
|
|
reply_parent = None
|
|
if self.in_reply_to:
|
|
reply_parent = Post.objects.filter(object_uri=self.in_reply_to).first()
|
|
visibility_mapping = {
|
|
self.Visibilities.public: "public",
|
|
self.Visibilities.unlisted: "unlisted",
|
|
self.Visibilities.followers: "private",
|
|
self.Visibilities.mentioned: "direct",
|
|
self.Visibilities.local_only: "public",
|
|
}
|
|
value = {
|
|
"id": self.pk,
|
|
"uri": self.object_uri,
|
|
"created_at": format_ld_date(self.published),
|
|
"account": self.author.to_mastodon_json(),
|
|
"content": self.safe_content_remote(),
|
|
"visibility": visibility_mapping[self.visibility],
|
|
"sensitive": self.sensitive,
|
|
"spoiler_text": self.summary or "",
|
|
"media_attachments": [
|
|
attachment.to_mastodon_json() for attachment in self.attachments.all()
|
|
],
|
|
"mentions": [
|
|
{
|
|
"id": mention.id,
|
|
"username": mention.username,
|
|
"url": mention.absolute_profile_uri(),
|
|
"acct": mention.handle,
|
|
}
|
|
for mention in self.mentions.all()
|
|
if mention.username
|
|
],
|
|
"tags": (
|
|
[{"name": tag, "url": "/tag/{tag}/"} for tag in self.hashtags]
|
|
if self.hashtags
|
|
else []
|
|
),
|
|
"emojis": [emoji.to_mastodon_json() for emoji in self.emojis.usable()],
|
|
"reblogs_count": self.interactions.filter(type="boost").count(),
|
|
"favourites_count": self.interactions.filter(type="like").count(),
|
|
"replies_count": 0,
|
|
"url": self.absolute_object_uri(),
|
|
"in_reply_to_id": reply_parent.pk if reply_parent else None,
|
|
"in_reply_to_account_id": reply_parent.author.pk if reply_parent else None,
|
|
"reblog": None,
|
|
"poll": None,
|
|
"card": None,
|
|
"language": None,
|
|
"text": self.safe_content_plain(),
|
|
"edited_at": format_ld_date(self.edited) if self.edited else None,
|
|
}
|
|
if interactions:
|
|
value["favourited"] = self.pk in interactions.get("like", [])
|
|
value["reblogged"] = self.pk in interactions.get("boost", [])
|
|
return value
|