forked from mirrors/bookwyrm
Moves privacy filter to model class
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parent
67c83b8d32
commit
b2671e78ef
2 changed files with 72 additions and 53 deletions
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@ -2,8 +2,9 @@
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import base64
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from Crypto import Random
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from django.core.exceptions import PermissionDenied
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from django.core.exceptions import PermissionDenied, FieldError
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from django.db import models
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from django.db.models import Q
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from django.dispatch import receiver
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from django.http import Http404
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from django.utils.translation import gettext_lazy as _
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@ -105,6 +106,76 @@ class BookWyrmModel(models.Model):
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raise PermissionDenied()
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@classmethod
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def privacy_filter(
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cls, viewer, privacy_levels=None, following_only=False, **filters
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):
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"""filter objects that have "user" and "privacy" fields"""
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queryset = cls.objects
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if hasattr(queryset, "select_subclasses"):
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queryset = queryset.select_subclasses()
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privacy_levels = privacy_levels or ["public", "unlisted", "followers", "direct"]
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# if there'd a deleted field, exclude deleted items
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try:
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queryset = queryset.filter(deleted=False)
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except FieldError:
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pass
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# exclude blocks from both directions
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if not viewer.is_anonymous:
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queryset = queryset.exclude(
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Q(user__blocked_by=viewer) | Q(user__blocks=viewer)
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)
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# you can't see followers only or direct messages if you're not logged in
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if viewer.is_anonymous:
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privacy_levels = [
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p for p in privacy_levels if not p in ["followers", "direct"]
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]
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# filter to only privided privacy levels
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queryset = queryset.filter(privacy__in=privacy_levels)
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# only include statuses the user follows
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if following_only:
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queryset = queryset.exclude(
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~Q( # remove everythign except
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Q(user__followers=viewer)
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| Q(user=viewer) # user following
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| Q(mention_users=viewer) # is self # mentions user
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),
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)
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# exclude followers-only statuses the user doesn't follow
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elif "followers" in privacy_levels:
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queryset = cls.followers_filter(queryset, viewer)
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# exclude direct messages not intended for the user
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if "direct" in privacy_levels:
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queryset = cls.direct_filter(queryset, viewer)
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return queryset
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@classmethod
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def followers_filter(cls, queryset, viewer):
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"""Override-able filter for "followers" privacy level"""
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return queryset.exclude(
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~Q( # user isn't following and it isn't their own status
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Q(user__followers=viewer) | Q(user=viewer)
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),
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privacy="followers", # and the status is followers only
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)
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@classmethod
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def direct_filter(cls, queryset, viewer):
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"""Override-able filter for "direct" privacy level"""
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try:
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return queryset.exclude(
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~Q(Q(user=viewer) | Q(mention_users=viewer)), privacy="direct"
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)
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except FieldError:
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return queryset.exclude(~Q(user=viewer), privacy="direct")
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@receiver(models.signals.post_save)
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# pylint: disable=unused-argument
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@ -6,8 +6,6 @@ import dateutil.tz
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from dateutil.parser import ParserError
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from requests import HTTPError
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from django.core.exceptions import FieldError
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from django.db.models import Q
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from django.http import Http404
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from bookwyrm import activitypub, models
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@ -50,56 +48,6 @@ def is_bookwyrm_request(request):
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return True
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def privacy_filter(viewer, queryset, privacy_levels=None, following_only=False):
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"""filter objects that have "user" and "privacy" fields"""
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privacy_levels = privacy_levels or ["public", "unlisted", "followers", "direct"]
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# if there'd a deleted field, exclude deleted items
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try:
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queryset = queryset.filter(deleted=False)
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except FieldError:
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pass
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# exclude blocks from both directions
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if not viewer.is_anonymous:
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queryset = queryset.exclude(Q(user__blocked_by=viewer) | Q(user__blocks=viewer))
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# you can't see followers only or direct messages if you're not logged in
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if viewer.is_anonymous:
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privacy_levels = [p for p in privacy_levels if not p in ["followers", "direct"]]
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# filter to only privided privacy levels
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queryset = queryset.filter(privacy__in=privacy_levels)
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# only include statuses the user follows
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if following_only:
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queryset = queryset.exclude(
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~Q( # remove everythign except
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Q(user__followers=viewer)
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| Q(user=viewer) # user following
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| Q(mention_users=viewer) # is self # mentions user
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),
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)
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# exclude followers-only statuses the user doesn't follow
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elif "followers" in privacy_levels:
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queryset = queryset.exclude(
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~Q( # user isn't following and it isn't their own status
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Q(user__followers=viewer) | Q(user=viewer)
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),
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privacy="followers", # and the status is followers only
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)
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# exclude direct messages not intended for the user
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if "direct" in privacy_levels:
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try:
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queryset = queryset.exclude(
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~Q(Q(user=viewer) | Q(mention_users=viewer)), privacy="direct"
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)
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except FieldError:
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queryset = queryset.exclude(~Q(user=viewer), privacy="direct")
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return queryset
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def handle_remote_webfinger(query):
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"""webfingerin' other servers"""
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user = None
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