moviewyrm/bookwyrm/models/user.py

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""" database schema for user data """
import re
from urllib.parse import urlparse
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from django.apps import apps
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from django.contrib.auth.models import AbstractUser, Group
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from django.contrib.postgres.fields import CICharField
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from django.core.validators import MinValueValidator
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from django.db import models
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from django.utils import timezone
import pytz
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from bookwyrm import activitypub
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from bookwyrm.connectors import get_data, ConnectorException
from bookwyrm.models.shelf import Shelf
from bookwyrm.models.status import Status, Review
from bookwyrm.settings import DOMAIN
from bookwyrm.signatures import create_key_pair
from bookwyrm.tasks import app
from bookwyrm.utils import regex
from .activitypub_mixin import OrderedCollectionPageMixin, ActivitypubMixin
from .base_model import BookWyrmModel, DeactivationReason
from .federated_server import FederatedServer
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from . import fields, Review
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class User(OrderedCollectionPageMixin, AbstractUser):
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"""a user who wants to read books"""
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username = fields.UsernameField()
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email = models.EmailField(unique=True, null=True)
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key_pair = fields.OneToOneField(
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"KeyPair",
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on_delete=models.CASCADE,
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blank=True,
null=True,
activitypub_field="publicKey",
related_name="owner",
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)
inbox = fields.RemoteIdField(unique=True)
shared_inbox = fields.RemoteIdField(
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activitypub_field="sharedInbox",
activitypub_wrapper="endpoints",
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deduplication_field=False,
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null=True,
)
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federated_server = models.ForeignKey(
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"FederatedServer",
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on_delete=models.PROTECT,
null=True,
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blank=True,
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)
outbox = fields.RemoteIdField(unique=True, null=True)
summary = fields.HtmlField(null=True, blank=True)
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local = models.BooleanField(default=False)
bookwyrm_user = fields.BooleanField(default=True)
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localname = CICharField(
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max_length=255,
null=True,
unique=True,
validators=[fields.validate_localname],
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)
# name is your display name, which you can change at will
name = fields.CharField(max_length=100, null=True, blank=True)
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avatar = fields.ImageField(
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upload_to="avatars/",
blank=True,
null=True,
activitypub_field="icon",
alt_field="alt_text",
)
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followers = fields.ManyToManyField(
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"self",
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link_only=True,
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symmetrical=False,
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through="UserFollows",
through_fields=("user_object", "user_subject"),
related_name="following",
)
follow_requests = models.ManyToManyField(
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"self",
symmetrical=False,
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through="UserFollowRequest",
through_fields=("user_subject", "user_object"),
related_name="follower_requests",
)
blocks = models.ManyToManyField(
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"self",
symmetrical=False,
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through="UserBlocks",
through_fields=("user_subject", "user_object"),
related_name="blocked_by",
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)
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favorites = models.ManyToManyField(
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"Status",
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symmetrical=False,
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through="Favorite",
through_fields=("user", "status"),
related_name="favorite_statuses",
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)
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remote_id = fields.RemoteIdField(null=True, unique=True, activitypub_field="id")
created_date = models.DateTimeField(auto_now_add=True)
updated_date = models.DateTimeField(auto_now=True)
last_active_date = models.DateTimeField(auto_now=True)
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manually_approves_followers = fields.BooleanField(default=False)
show_goal = models.BooleanField(default=True)
discoverable = fields.BooleanField(default=False)
preferred_timezone = models.CharField(
choices=[(str(tz), str(tz)) for tz in pytz.all_timezones],
default=str(pytz.utc),
max_length=255,
)
deactivation_reason = models.CharField(
max_length=255, choices=DeactivationReason.choices, null=True, blank=True
)
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name_field = "username"
property_fields = [("following_link", "following")]
@property
def following_link(self):
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"""just how to find out the following info"""
return "{:s}/following".format(self.remote_id)
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@property
def alt_text(self):
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"""alt text with username"""
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return "avatar for %s" % (self.localname or self.username)
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@property
def display_name(self):
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"""show the cleanest version of the user's name possible"""
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if self.name and self.name != "":
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return self.name
return self.localname or self.username
@property
def deleted(self):
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"""for consistent naming"""
return not self.is_active
@property
def unread_notification_count(self):
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"""count of notifications, for the templates"""
return self.notification_set.filter(read=False).count()
@property
def has_unread_mentions(self):
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"""whether any of the unread notifications are conversations"""
return self.notification_set.filter(
read=False,
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notification_type__in=["REPLY", "MENTION", "TAG", "REPORT"],
).exists()
activity_serializer = activitypub.Person
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@classmethod
def viewer_aware_objects(cls, viewer):
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"""the user queryset filtered for the context of the logged in user"""
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queryset = cls.objects.filter(is_active=True)
if viewer and viewer.is_authenticated:
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queryset = queryset.exclude(blocks=viewer)
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return queryset
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def to_outbox(self, filter_type=None, **kwargs):
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"""an ordered collection of statuses"""
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if filter_type:
filter_class = apps.get_model(
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"bookwyrm.%s" % filter_type, require_ready=True
)
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if not issubclass(filter_class, Status):
raise TypeError(
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"filter_status_class must be a subclass of models.Status"
)
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queryset = filter_class.objects
else:
queryset = Status.objects
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queryset = (
queryset.filter(
user=self,
deleted=False,
privacy__in=["public", "unlisted"],
)
.select_subclasses()
.order_by("-published_date")
)
return self.to_ordered_collection(
queryset, collection_only=True, remote_id=self.outbox, **kwargs
).serialize()
def to_following_activity(self, **kwargs):
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"""activitypub following list"""
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remote_id = "%s/following" % self.remote_id
return self.to_ordered_collection(
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self.following.order_by("-updated_date").all(),
remote_id=remote_id,
id_only=True,
**kwargs
)
def to_followers_activity(self, **kwargs):
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"""activitypub followers list"""
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remote_id = "%s/followers" % self.remote_id
return self.to_ordered_collection(
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self.followers.order_by("-updated_date").all(),
remote_id=remote_id,
id_only=True,
**kwargs
)
def to_activity(self, **kwargs):
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"""override default AP serializer to add context object
idk if this is the best way to go about this"""
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if not self.is_active:
return self.remote_id
activity_object = super().to_activity(**kwargs)
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activity_object["@context"] = [
"https://www.w3.org/ns/activitystreams",
"https://w3id.org/security/v1",
{
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"manuallyApprovesFollowers": "as:manuallyApprovesFollowers",
"schema": "http://schema.org#",
"PropertyValue": "schema:PropertyValue",
"value": "schema:value",
},
]
return activity_object
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def save(self, *args, **kwargs):
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"""populate fields for new local users"""
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created = not bool(self.id)
if not self.local and not re.match(regex.full_username, self.username):
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# generate a username that uses the domain (webfinger format)
actor_parts = urlparse(self.remote_id)
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self.username = "%s@%s" % (self.username, actor_parts.netloc)
super().save(*args, **kwargs)
# this user already exists, no need to populate fields
if not created:
super().save(*args, **kwargs)
return
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# this is a new remote user, we need to set their remote server field
if not self.local:
super().save(*args, **kwargs)
set_remote_server.delay(self.id)
return
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# populate fields for local users
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self.remote_id = "https://%s/user/%s" % (DOMAIN, self.localname)
self.inbox = "%s/inbox" % self.remote_id
self.shared_inbox = "https://%s/inbox" % DOMAIN
self.outbox = "%s/outbox" % self.remote_id
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# an id needs to be set before we can proceed with related models
super().save(*args, **kwargs)
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# make users editors by default
try:
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self.groups.add(Group.objects.get(name="editor"))
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except Group.DoesNotExist:
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# this should only happen in tests
pass
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# create keys and shelves for new local users
self.key_pair = KeyPair.objects.create(
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remote_id="%s/#main-key" % self.remote_id
)
self.save(broadcast=False)
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shelves = [
{
"name": "To Read",
"identifier": "to-read",
},
{
"name": "Currently Reading",
"identifier": "reading",
},
{
"name": "Read",
"identifier": "read",
},
]
for shelf in shelves:
Shelf(
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name=shelf["name"],
identifier=shelf["identifier"],
user=self,
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editable=False,
).save(broadcast=False)
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def delete(self, *args, **kwargs):
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"""deactivate rather than delete a user"""
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self.is_active = False
# skip the logic in this class's save()
super().save(*args, **kwargs)
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@property
def local_path(self):
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"""this model doesn't inherit bookwyrm model, so here we are"""
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return "/user/%s" % (self.localname or self.username)
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class KeyPair(ActivitypubMixin, BookWyrmModel):
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"""public and private keys for a user"""
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private_key = models.TextField(blank=True, null=True)
public_key = fields.TextField(
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blank=True, null=True, activitypub_field="publicKeyPem"
)
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activity_serializer = activitypub.PublicKey
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serialize_reverse_fields = [("owner", "owner", "id")]
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def get_remote_id(self):
# self.owner is set by the OneToOneField on User
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return "%s/#main-key" % self.owner.remote_id
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def save(self, *args, **kwargs):
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"""create a key pair"""
# no broadcasting happening here
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if "broadcast" in kwargs:
del kwargs["broadcast"]
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if not self.public_key:
self.private_key, self.public_key = create_key_pair()
return super().save(*args, **kwargs)
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def to_activity(self, **kwargs):
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"""override default AP serializer to add context object
idk if this is the best way to go about this"""
activity_object = super().to_activity(**kwargs)
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del activity_object["@context"]
del activity_object["type"]
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return activity_object
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class AnnualGoal(BookWyrmModel):
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"""set a goal for how many books you read in a year"""
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user = models.ForeignKey("User", on_delete=models.PROTECT)
goal = models.IntegerField(validators=[MinValueValidator(1)])
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year = models.IntegerField(default=timezone.now().year)
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privacy = models.CharField(
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max_length=255, default="public", choices=fields.PrivacyLevels.choices
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)
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class Meta:
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"""unqiueness constraint"""
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unique_together = ("user", "year")
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def get_remote_id(self):
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"""put the year in the path"""
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return "%s/goal/%d" % (self.user.remote_id, self.year)
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@property
def books(self):
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"""the books you've read this year"""
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return (
self.user.readthrough_set.filter(
finish_date__year__gte=self.year,
finish_date__year__lt=self.year + 1,
)
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.order_by("-finish_date")
.all()
)
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@property
def ratings(self):
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"""ratings for books read this year"""
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book_ids = [r.book.id for r in self.books]
reviews = Review.objects.filter(
user=self.user,
book__in=book_ids,
)
return {r.book.id: r.rating for r in reviews}
@property
def progress_percent(self):
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"""how close to your goal, in percent form"""
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return int(float(self.book_count / self.goal) * 100)
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@property
def book_count(self):
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"""how many books you've read this year"""
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return self.user.readthrough_set.filter(
finish_date__year__gte=self.year,
finish_date__year__lt=self.year + 1,
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).count()
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@app.task
def set_remote_server(user_id):
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"""figure out the user's remote server in the background"""
user = User.objects.get(id=user_id)
actor_parts = urlparse(user.remote_id)
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user.federated_server = get_or_create_remote_server(actor_parts.netloc)
user.save(broadcast=False)
if user.bookwyrm_user and user.outbox:
get_remote_reviews.delay(user.outbox)
def get_or_create_remote_server(domain):
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"""get info on a remote server"""
try:
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return FederatedServer.objects.get(server_name=domain)
except FederatedServer.DoesNotExist:
pass
try:
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data = get_data("https://%s/.well-known/nodeinfo" % domain)
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try:
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nodeinfo_url = data.get("links")[0].get("href")
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except (TypeError, KeyError):
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raise ConnectorException()
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data = get_data(nodeinfo_url)
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application_type = data.get("software", {}).get("name")
application_version = data.get("software", {}).get("version")
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except ConnectorException:
application_type = application_version = None
server = FederatedServer.objects.create(
server_name=domain,
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application_type=application_type,
application_version=application_version,
)
return server
@app.task
def get_remote_reviews(outbox):
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"""ingest reviews by a new remote bookwyrm user"""
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outbox_page = outbox + "?page=true&type=Review"
data = get_data(outbox_page)
# TODO: pagination?
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for activity in data["orderedItems"]:
if not activity["type"] == "Review":
continue
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activitypub.Review(**activity).to_model()