forked from mirrors/bookwyrm
367 lines
12 KiB
Python
367 lines
12 KiB
Python
''' database schema for user data '''
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import re
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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
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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.dispatch import receiver
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from django.utils import timezone
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from bookwyrm import activitypub
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from bookwyrm.connectors import get_data
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from bookwyrm.models.shelf import Shelf
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from bookwyrm.models.status import Status, Review
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from bookwyrm.settings import DOMAIN
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from bookwyrm.signatures import create_key_pair
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from bookwyrm.tasks import app
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from bookwyrm.utils import regex
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from .activitypub_mixin import OrderedCollectionPageMixin, ActivitypubMixin
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from .base_model import BookWyrmModel
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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,
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activitypub_field='publicKey',
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related_name='owner'
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)
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inbox = fields.RemoteIdField(unique=True)
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shared_inbox = fields.RemoteIdField(
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activitypub_field='sharedInbox',
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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,
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null=True,
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blank=True,
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)
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outbox = fields.RemoteIdField(unique=True)
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summary = fields.HtmlField(null=True, blank=True)
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local = models.BooleanField(default=False)
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bookwyrm_user = fields.BooleanField(default=True)
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localname = models.CharField(
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max_length=255,
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null=True,
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unique=True,
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validators=[fields.validate_localname],
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)
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# name is your display name, which you can change at will
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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,
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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',
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through_fields=('user_object', 'user_subject'),
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related_name='following'
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)
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follow_requests = models.ManyToManyField(
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'self',
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symmetrical=False,
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through='UserFollowRequest',
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through_fields=('user_subject', 'user_object'),
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related_name='follower_requests'
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)
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blocks = models.ManyToManyField(
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'self',
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symmetrical=False,
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through='UserBlocks',
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through_fields=('user_subject', 'user_object'),
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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',
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through_fields=('user', 'status'),
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related_name='favorite_statuses'
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)
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remote_id = fields.RemoteIdField(
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null=True, unique=True, activitypub_field='id')
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created_date = models.DateTimeField(auto_now_add=True)
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updated_date = models.DateTimeField(auto_now=True)
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last_active_date = models.DateTimeField(auto_now=True)
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manually_approves_followers = fields.BooleanField(default=False)
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name_field = 'username'
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@property
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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
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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
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return self.localname or self.username
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activity_serializer = activitypub.Person
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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:
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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):
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raise TypeError(
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'filter_status_class must be a subclass of models.Status')
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queryset = filter_class.objects
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else:
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queryset = Status.objects
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queryset = queryset.filter(
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user=self,
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deleted=False,
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privacy__in=['public', 'unlisted'],
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).select_subclasses().order_by('-published_date')
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return self.to_ordered_collection(queryset, \
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collection_only=True, remote_id=self.outbox, **kwargs)
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def to_following_activity(self, **kwargs):
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''' activitypub following list '''
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remote_id = '%s/following' % self.remote_id
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return self.to_ordered_collection(
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self.following.order_by('-updated_date').all(),
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remote_id=remote_id,
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id_only=True,
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**kwargs
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)
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def to_followers_activity(self, **kwargs):
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''' activitypub followers list '''
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remote_id = '%s/followers' % self.remote_id
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return self.to_ordered_collection(
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self.followers.order_by('-updated_date').all(),
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remote_id=remote_id,
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id_only=True,
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**kwargs
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)
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def to_activity(self):
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''' override default AP serializer to add context object
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idk if this is the best way to go about this '''
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activity_object = super().to_activity()
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activity_object['@context'] = [
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'https://www.w3.org/ns/activitystreams',
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'https://w3id.org/security/v1',
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{
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'manuallyApprovesFollowers': 'as:manuallyApprovesFollowers',
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'schema': 'http://schema.org#',
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'PropertyValue': 'schema:PropertyValue',
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'value': 'schema:value',
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}
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]
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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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# this user already exists, no need to populate fields
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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)
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actor_parts = urlparse(self.remote_id)
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self.username = '%s@%s' % (self.username, actor_parts.netloc)
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return super().save(*args, **kwargs)
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if self.id or not self.local:
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return super().save(*args, **kwargs)
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# populate fields for local users
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self.remote_id = 'https://%s/user/%s' % (DOMAIN, self.localname)
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self.inbox = '%s/inbox' % self.remote_id
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self.shared_inbox = 'https://%s/inbox' % DOMAIN
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self.outbox = '%s/outbox' % self.remote_id
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return super().save(*args, **kwargs)
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@property
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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)
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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):
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# 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 '''
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# no broadcasting happening here
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if 'broadcast' in kwargs:
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del kwargs['broadcast']
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if not self.public_key:
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self.private_key, self.public_key = create_key_pair()
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return super().save(*args, **kwargs)
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def to_activity(self):
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''' override default AP serializer to add context object
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idk if this is the best way to go about this '''
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activity_object = super().to_activity()
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del activity_object['@context']
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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)
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goal = models.IntegerField(
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validators=[MinValueValidator(1)]
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)
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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,
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default='public',
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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
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def books(self):
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''' the books you've read this year '''
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return self.user.readthrough_set.filter(
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finish_date__year__gte=self.year
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).order_by('-finish_date').all()
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@property
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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]
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reviews = Review.objects.filter(
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user=self.user,
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book__in=book_ids,
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)
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return {r.book.id: r.rating for r in reviews}
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@property
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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
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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(
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finish_date__year__gte=self.year).count()
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@receiver(models.signals.post_save, sender=User)
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#pylint: disable=unused-argument
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def execute_after_save(sender, instance, created, *args, **kwargs):
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''' create shelves for new users '''
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if not created:
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return
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if not instance.local:
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set_remote_server.delay(instance.id)
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return
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instance.key_pair = KeyPair.objects.create(
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remote_id='%s/#main-key' % instance.remote_id)
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instance.save(broadcast=False)
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shelves = [{
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'name': 'To Read',
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'identifier': 'to-read',
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}, {
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'name': 'Currently Reading',
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'identifier': 'reading',
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}, {
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'name': 'Read',
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'identifier': 'read',
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}]
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for shelf in shelves:
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Shelf(
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name=shelf['name'],
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identifier=shelf['identifier'],
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user=instance,
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editable=False
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).save(broadcast=False)
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@app.task
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def set_remote_server(user_id):
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''' figure out the user's remote server in the background '''
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user = User.objects.get(id=user_id)
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actor_parts = urlparse(user.remote_id)
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user.federated_server = \
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get_or_create_remote_server(actor_parts.netloc)
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user.save()
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if user.bookwyrm_user:
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get_remote_reviews.delay(user.outbox)
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def get_or_create_remote_server(domain):
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''' get info on a remote server '''
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try:
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return FederatedServer.objects.get(
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server_name=domain
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)
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except FederatedServer.DoesNotExist:
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pass
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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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return None
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data = get_data(nodeinfo_url)
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server = FederatedServer.objects.create(
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server_name=domain,
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application_type=data['software']['name'],
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application_version=data['software']['version'],
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)
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return server
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@app.task
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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'
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data = get_data(outbox_page)
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# TODO: pagination?
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for activity in data['orderedItems']:
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if not activity['type'] == 'Review':
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continue
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activitypub.Review(**activity).to_model(Review)
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