forked from mirrors/bookwyrm
448 lines
15 KiB
Python
448 lines
15 KiB
Python
""" models for storing different kinds of Activities """
|
|
from dataclasses import MISSING
|
|
import re
|
|
|
|
from django.apps import apps
|
|
from django.core.cache import cache
|
|
from django.core.exceptions import PermissionDenied
|
|
from django.core.validators import MaxValueValidator, MinValueValidator
|
|
from django.db import models
|
|
from django.db.models import Q
|
|
from django.dispatch import receiver
|
|
from django.template.loader import get_template
|
|
from django.utils import timezone
|
|
from model_utils import FieldTracker
|
|
from model_utils.managers import InheritanceManager
|
|
|
|
from bookwyrm import activitypub
|
|
from bookwyrm.preview_images import generate_edition_preview_image_task
|
|
from bookwyrm.settings import ENABLE_PREVIEW_IMAGES
|
|
from .activitypub_mixin import ActivitypubMixin, ActivityMixin
|
|
from .activitypub_mixin import OrderedCollectionPageMixin
|
|
from .base_model import BookWyrmModel
|
|
from .readthrough import ProgressMode
|
|
from . import fields
|
|
|
|
|
|
class Status(OrderedCollectionPageMixin, BookWyrmModel):
|
|
"""any post, like a reply to a review, etc"""
|
|
|
|
user = fields.ForeignKey(
|
|
"User", on_delete=models.PROTECT, activitypub_field="attributedTo"
|
|
)
|
|
content = fields.HtmlField(blank=True, null=True)
|
|
raw_content = models.TextField(blank=True, null=True)
|
|
mention_users = fields.TagField("User", related_name="mention_user")
|
|
mention_books = fields.TagField("Edition", related_name="mention_book")
|
|
local = models.BooleanField(default=True)
|
|
content_warning = fields.CharField(
|
|
max_length=500, blank=True, null=True, activitypub_field="summary"
|
|
)
|
|
privacy = fields.PrivacyField(max_length=255)
|
|
sensitive = fields.BooleanField(default=False)
|
|
# created date is different than publish date because of federated posts
|
|
published_date = fields.DateTimeField(
|
|
default=timezone.now, activitypub_field="published"
|
|
)
|
|
edited_date = fields.DateTimeField(
|
|
blank=True, null=True, activitypub_field="updated"
|
|
)
|
|
deleted = models.BooleanField(default=False)
|
|
deleted_date = models.DateTimeField(blank=True, null=True)
|
|
favorites = models.ManyToManyField(
|
|
"User",
|
|
symmetrical=False,
|
|
through="Favorite",
|
|
through_fields=("status", "user"),
|
|
related_name="user_favorites",
|
|
)
|
|
reply_parent = fields.ForeignKey(
|
|
"self",
|
|
null=True,
|
|
on_delete=models.PROTECT,
|
|
activitypub_field="inReplyTo",
|
|
)
|
|
thread_id = models.IntegerField(blank=True, null=True)
|
|
objects = InheritanceManager()
|
|
|
|
activity_serializer = activitypub.Note
|
|
serialize_reverse_fields = [("attachments", "attachment", "id")]
|
|
deserialize_reverse_fields = [("attachments", "attachment")]
|
|
|
|
class Meta:
|
|
"""default sorting"""
|
|
|
|
ordering = ("-published_date",)
|
|
|
|
def save(self, *args, **kwargs):
|
|
"""save and notify"""
|
|
if self.reply_parent:
|
|
self.thread_id = self.reply_parent.thread_id or self.reply_parent.id
|
|
|
|
super().save(*args, **kwargs)
|
|
|
|
if not self.reply_parent:
|
|
self.thread_id = self.id
|
|
|
|
super().save(broadcast=False, update_fields=["thread_id"])
|
|
|
|
def delete(self, *args, **kwargs): # pylint: disable=unused-argument
|
|
""" "delete" a status"""
|
|
if hasattr(self, "boosted_status"):
|
|
# okay but if it's a boost really delete it
|
|
super().delete(*args, **kwargs)
|
|
return
|
|
self.deleted = True
|
|
# clear user content
|
|
self.content = None
|
|
if hasattr(self, "quotation"):
|
|
self.quotation = None # pylint: disable=attribute-defined-outside-init
|
|
self.deleted_date = timezone.now()
|
|
self.save()
|
|
|
|
@property
|
|
def recipients(self):
|
|
"""tagged users who definitely need to get this status in broadcast"""
|
|
mentions = [u for u in self.mention_users.all() if not u.local]
|
|
if (
|
|
hasattr(self, "reply_parent")
|
|
and self.reply_parent
|
|
and not self.reply_parent.user.local
|
|
):
|
|
mentions.append(self.reply_parent.user)
|
|
return list(set(mentions))
|
|
|
|
@classmethod
|
|
def ignore_activity(cls, activity): # pylint: disable=too-many-return-statements
|
|
"""keep notes if they are replies to existing statuses"""
|
|
if activity.type == "Announce":
|
|
try:
|
|
boosted = activitypub.resolve_remote_id(
|
|
activity.object, get_activity=True
|
|
)
|
|
except activitypub.ActivitySerializerError:
|
|
# if we can't load the status, definitely ignore it
|
|
return True
|
|
# keep the boost if we would keep the status
|
|
return cls.ignore_activity(boosted)
|
|
|
|
# keep if it if it's a custom type
|
|
if activity.type != "Note":
|
|
return False
|
|
# keep it if it's a reply to an existing status
|
|
if cls.objects.filter(remote_id=activity.inReplyTo).exists():
|
|
return False
|
|
|
|
# keep notes if they mention local users
|
|
if activity.tag == MISSING or activity.tag is None:
|
|
return True
|
|
tags = [l["href"] for l in activity.tag if l["type"] == "Mention"]
|
|
user_model = apps.get_model("bookwyrm.User", require_ready=True)
|
|
for tag in tags:
|
|
if user_model.objects.filter(remote_id=tag, local=True).exists():
|
|
# we found a mention of a known use boost
|
|
return False
|
|
return True
|
|
|
|
@classmethod
|
|
def replies(cls, status):
|
|
"""load all replies to a status. idk if there's a better way
|
|
to write this so it's just a property"""
|
|
return (
|
|
cls.objects.filter(reply_parent=status)
|
|
.select_subclasses()
|
|
.order_by("published_date")
|
|
)
|
|
|
|
@property
|
|
def status_type(self):
|
|
"""expose the type of status for the ui using activity type"""
|
|
return self.activity_serializer.__name__
|
|
|
|
@property
|
|
def boostable(self):
|
|
"""you can't boost dms"""
|
|
return self.privacy in ["unlisted", "public"]
|
|
|
|
def to_replies(self, **kwargs):
|
|
"""helper function for loading AP serialized replies to a status"""
|
|
return self.to_ordered_collection(
|
|
self.replies(self),
|
|
remote_id=f"{self.remote_id}/replies",
|
|
collection_only=True,
|
|
**kwargs,
|
|
).serialize()
|
|
|
|
def to_activity_dataclass(self, pure=False): # pylint: disable=arguments-differ
|
|
"""return tombstone if the status is deleted"""
|
|
if self.deleted:
|
|
return activitypub.Tombstone(
|
|
id=self.remote_id,
|
|
url=self.remote_id,
|
|
deleted=self.deleted_date.isoformat(),
|
|
published=self.deleted_date.isoformat(),
|
|
)
|
|
activity = ActivitypubMixin.to_activity_dataclass(self)
|
|
activity.replies = self.to_replies()
|
|
|
|
# "pure" serialization for non-bookwyrm instances
|
|
if pure and hasattr(self, "pure_content"):
|
|
activity.content = self.pure_content
|
|
if hasattr(activity, "name"):
|
|
activity.name = self.pure_name
|
|
activity.type = self.pure_type
|
|
book = getattr(self, "book", None)
|
|
books = [book] if book else []
|
|
books += list(self.mention_books.all())
|
|
if len(books) == 1 and getattr(books[0], "preview_image", None):
|
|
covers = [
|
|
activitypub.Document(
|
|
url=fields.get_absolute_url(books[0].preview_image),
|
|
name=books[0].alt_text,
|
|
)
|
|
]
|
|
else:
|
|
covers = [
|
|
activitypub.Document(
|
|
url=fields.get_absolute_url(b.cover),
|
|
name=b.alt_text,
|
|
)
|
|
for b in books
|
|
if b and b.cover
|
|
]
|
|
activity.attachment = covers
|
|
return activity
|
|
|
|
def to_activity(self, pure=False): # pylint: disable=arguments-differ
|
|
"""json serialized activitypub class"""
|
|
return self.to_activity_dataclass(pure=pure).serialize()
|
|
|
|
def raise_not_editable(self, viewer):
|
|
"""certain types of status aren't editable"""
|
|
# first, the standard raise
|
|
super().raise_not_editable(viewer)
|
|
if isinstance(self, (GeneratedNote, ReviewRating)):
|
|
raise PermissionDenied()
|
|
|
|
@classmethod
|
|
def privacy_filter(cls, viewer, privacy_levels=None):
|
|
queryset = super().privacy_filter(viewer, privacy_levels=privacy_levels)
|
|
return queryset.filter(deleted=False)
|
|
|
|
@classmethod
|
|
def direct_filter(cls, queryset, viewer):
|
|
"""Overridden filter for "direct" privacy level"""
|
|
return queryset.exclude(
|
|
~Q(Q(user=viewer) | Q(mention_users=viewer)), privacy="direct"
|
|
)
|
|
|
|
@classmethod
|
|
def followers_filter(cls, queryset, viewer):
|
|
"""Override-able filter for "followers" privacy level"""
|
|
return queryset.exclude(
|
|
~Q( # not yourself, a follower, or someone who is tagged
|
|
Q(user__followers=viewer) | Q(user=viewer) | Q(mention_users=viewer)
|
|
),
|
|
privacy="followers", # and the status is followers only
|
|
)
|
|
|
|
|
|
class GeneratedNote(Status):
|
|
"""these are app-generated messages about user activity"""
|
|
|
|
@property
|
|
def pure_content(self):
|
|
"""indicate the book in question for mastodon (or w/e) users"""
|
|
message = self.content
|
|
books = ", ".join(
|
|
f'<a href="{book.remote_id}">"{book.title}"</a>'
|
|
for book in self.mention_books.all()
|
|
)
|
|
return f"{self.user.display_name} {message} {books}"
|
|
|
|
activity_serializer = activitypub.GeneratedNote
|
|
pure_type = "Note"
|
|
|
|
|
|
ReadingStatusChoices = models.TextChoices(
|
|
"ReadingStatusChoices", ["to-read", "reading", "read"]
|
|
)
|
|
|
|
|
|
class BookStatus(Status):
|
|
"""Shared fields for comments, quotes, reviews"""
|
|
|
|
book = fields.ForeignKey(
|
|
"Edition", on_delete=models.PROTECT, activitypub_field="inReplyToBook"
|
|
)
|
|
pure_type = "Note"
|
|
|
|
reading_status = fields.CharField(
|
|
max_length=255, choices=ReadingStatusChoices.choices, null=True, blank=True
|
|
)
|
|
|
|
class Meta:
|
|
"""not a real model, sorry"""
|
|
|
|
abstract = True
|
|
|
|
|
|
class Comment(BookStatus):
|
|
"""like a review but without a rating and transient"""
|
|
|
|
# this is it's own field instead of a foreign key to the progress update
|
|
# so that the update can be deleted without impacting the status
|
|
progress = models.IntegerField(
|
|
validators=[MinValueValidator(0)], null=True, blank=True
|
|
)
|
|
progress_mode = models.CharField(
|
|
max_length=3,
|
|
choices=ProgressMode.choices,
|
|
default=ProgressMode.PAGE,
|
|
null=True,
|
|
blank=True,
|
|
)
|
|
|
|
@property
|
|
def pure_content(self):
|
|
"""indicate the book in question for mastodon (or w/e) users"""
|
|
return (
|
|
f'{self.content}<p>(comment on <a href="{self.book.remote_id}">'
|
|
f'"{self.book.title}"</a>)</p>'
|
|
)
|
|
|
|
activity_serializer = activitypub.Comment
|
|
|
|
|
|
class Quotation(BookStatus):
|
|
"""like a review but without a rating and transient"""
|
|
|
|
quote = fields.HtmlField()
|
|
raw_quote = models.TextField(blank=True, null=True)
|
|
position = models.IntegerField(
|
|
validators=[MinValueValidator(0)], null=True, blank=True
|
|
)
|
|
position_mode = models.CharField(
|
|
max_length=3,
|
|
choices=ProgressMode.choices,
|
|
default=ProgressMode.PAGE,
|
|
null=True,
|
|
blank=True,
|
|
)
|
|
|
|
@property
|
|
def pure_content(self):
|
|
"""indicate the book in question for mastodon (or w/e) users"""
|
|
quote = re.sub(r"^<p>", '<p>"', self.quote)
|
|
quote = re.sub(r"</p>$", '"</p>', quote)
|
|
return (
|
|
f'{quote} <p>-- <a href="{self.book.remote_id}">'
|
|
f'"{self.book.title}"</a></p>{self.content}'
|
|
)
|
|
|
|
activity_serializer = activitypub.Quotation
|
|
|
|
|
|
class Review(BookStatus):
|
|
"""a book review"""
|
|
|
|
name = fields.CharField(max_length=255, null=True)
|
|
rating = fields.DecimalField(
|
|
default=None,
|
|
null=True,
|
|
blank=True,
|
|
validators=[MinValueValidator(1), MaxValueValidator(5)],
|
|
decimal_places=2,
|
|
max_digits=3,
|
|
)
|
|
|
|
field_tracker = FieldTracker(fields=["rating"])
|
|
|
|
@property
|
|
def pure_name(self):
|
|
"""clarify review names for mastodon serialization"""
|
|
template = get_template("snippets/generated_status/review_pure_name.html")
|
|
return template.render(
|
|
{"book": self.book, "rating": self.rating, "name": self.name}
|
|
).strip()
|
|
|
|
@property
|
|
def pure_content(self):
|
|
"""indicate the book in question for mastodon (or w/e) users"""
|
|
return self.content
|
|
|
|
activity_serializer = activitypub.Review
|
|
pure_type = "Article"
|
|
|
|
def save(self, *args, **kwargs):
|
|
"""clear rating caches"""
|
|
cache.delete(f"book-rating-{self.book.parent_work.id}-*")
|
|
super().save(*args, **kwargs)
|
|
|
|
|
|
class ReviewRating(Review):
|
|
"""a subtype of review that only contains a rating"""
|
|
|
|
def save(self, *args, **kwargs):
|
|
if not self.rating:
|
|
raise ValueError("ReviewRating object must include a numerical rating")
|
|
return super().save(*args, **kwargs)
|
|
|
|
@property
|
|
def pure_content(self):
|
|
template = get_template("snippets/generated_status/rating.html")
|
|
return template.render({"book": self.book, "rating": self.rating}).strip()
|
|
|
|
activity_serializer = activitypub.Rating
|
|
pure_type = "Note"
|
|
|
|
|
|
class Boost(ActivityMixin, Status):
|
|
"""boost'ing a post"""
|
|
|
|
boosted_status = fields.ForeignKey(
|
|
"Status",
|
|
on_delete=models.PROTECT,
|
|
related_name="boosters",
|
|
activitypub_field="object",
|
|
)
|
|
activity_serializer = activitypub.Announce
|
|
|
|
def save(self, *args, **kwargs):
|
|
"""save and notify"""
|
|
# This constraint can't work as it would cross tables.
|
|
# class Meta:
|
|
# unique_together = ('user', 'boosted_status')
|
|
if (
|
|
Boost.objects.filter(boosted_status=self.boosted_status, user=self.user)
|
|
.exclude(id=self.id)
|
|
.exists()
|
|
):
|
|
return
|
|
|
|
super().save(*args, **kwargs)
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
"""the user field is "actor" here instead of "attributedTo" """
|
|
super().__init__(*args, **kwargs)
|
|
|
|
reserve_fields = ["user", "boosted_status", "published_date", "privacy"]
|
|
self.simple_fields = [f for f in self.simple_fields if f.name in reserve_fields]
|
|
self.activity_fields = self.simple_fields
|
|
self.many_to_many_fields = []
|
|
self.image_fields = []
|
|
self.deserialize_reverse_fields = []
|
|
|
|
|
|
# pylint: disable=unused-argument
|
|
@receiver(models.signals.post_save)
|
|
def preview_image(instance, sender, *args, **kwargs):
|
|
"""Updates book previews if the rating has changed"""
|
|
if not ENABLE_PREVIEW_IMAGES or sender not in (Review, ReviewRating):
|
|
return
|
|
|
|
changed_fields = instance.field_tracker.changed()
|
|
|
|
if len(changed_fields) > 0:
|
|
edition = instance.book
|
|
generate_edition_preview_image_task.delay(edition.id)
|