moviewyrm/bookwyrm/models/user.py

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''' database schema for user data '''
from urllib.parse import urlparse
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from django.contrib.auth.models import AbstractUser
from django.db import models
from django.dispatch import receiver
from bookwyrm import activitypub
from bookwyrm.models.shelf import Shelf
from bookwyrm.models.status import Status
from bookwyrm.settings import DOMAIN
from bookwyrm.signatures import create_key_pair
from .base_model import OrderedCollectionPageMixin
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from .base_model import ActivityMapping
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class User(OrderedCollectionPageMixin, AbstractUser):
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''' a user who wants to read books '''
private_key = models.TextField(blank=True, null=True)
public_key = models.TextField(blank=True, null=True)
inbox = models.CharField(max_length=255, unique=True)
shared_inbox = models.CharField(max_length=255, blank=True, null=True)
federated_server = models.ForeignKey(
'FederatedServer',
on_delete=models.PROTECT,
null=True,
)
outbox = models.CharField(max_length=255, unique=True)
summary = models.TextField(blank=True, null=True)
local = models.BooleanField(default=True)
bookwyrm_user = models.BooleanField(default=True)
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localname = models.CharField(
max_length=255,
null=True,
unique=True
)
# name is your display name, which you can change at will
name = models.CharField(max_length=100, blank=True, null=True)
avatar = models.ImageField(upload_to='avatars/', blank=True, null=True)
following = models.ManyToManyField(
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'self',
symmetrical=False,
through='UserFollows',
through_fields=('user_subject', 'user_object'),
related_name='followers'
)
follow_requests = models.ManyToManyField(
'self',
symmetrical=False,
through='UserFollowRequest',
through_fields=('user_subject', 'user_object'),
related_name='follower_requests'
)
blocks = models.ManyToManyField(
'self',
symmetrical=False,
through='UserBlocks',
through_fields=('user_subject', 'user_object'),
related_name='blocked_by'
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)
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favorites = models.ManyToManyField(
'Status',
symmetrical=False,
through='Favorite',
through_fields=('user', 'status'),
related_name='favorite_statuses'
)
remote_id = models.CharField(max_length=255, null=True, unique=True)
created_date = models.DateTimeField(auto_now_add=True)
updated_date = models.DateTimeField(auto_now=True)
manually_approves_followers = models.BooleanField(default=False)
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# ---- activitypub serialization settings for this model ----- #
@property
def ap_followers(self):
''' generates url for activitypub followers page '''
return '%s/followers' % self.remote_id
@property
def ap_icon(self):
''' send default icon if one isn't set '''
if self.avatar:
url = self.avatar.url
# TODO not the right way to get the media type
media_type = 'image/%s' % url.split('.')[-1]
else:
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url = 'https://%s/static/images/default_avi.jpg' % DOMAIN
media_type = 'image/jpeg'
return activitypub.Image(media_type, url, 'Image')
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@property
def ap_public_key(self):
''' format the public key block for activitypub '''
return activitypub.PublicKey(**{
'id': '%s/#main-key' % self.remote_id,
'owner': self.remote_id,
'publicKeyPem': self.public_key,
})
activity_mappings = [
ActivityMapping('id', 'remote_id'),
ActivityMapping(
'preferredUsername',
'username',
activity_formatter=lambda x: x.split('@')[0]
),
ActivityMapping('name', 'name'),
ActivityMapping('inbox', 'inbox'),
ActivityMapping('outbox', 'outbox'),
ActivityMapping('followers', 'ap_followers'),
ActivityMapping('summary', 'summary'),
ActivityMapping(
'publicKey',
'public_key',
model_formatter=lambda x: x.get('publicKeyPem')
),
ActivityMapping('publicKey', 'ap_public_key'),
ActivityMapping(
'endpoints',
'shared_inbox',
activity_formatter=lambda x: {'sharedInbox': x},
model_formatter=lambda x: x.get('sharedInbox')
),
ActivityMapping('icon', 'ap_icon'),
ActivityMapping(
'manuallyApprovesFollowers',
'manually_approves_followers'
),
# this field isn't in the activity but should always be false
ActivityMapping(None, 'local', model_formatter=lambda x: False),
]
activity_serializer = activitypub.Person
def to_outbox(self, **kwargs):
''' an ordered collection of statuses '''
queryset = Status.objects.filter(
user=self,
).select_subclasses()
return self.to_ordered_collection(queryset, \
remote_id=self.outbox, **kwargs)
def to_following_activity(self, **kwargs):
''' activitypub following list '''
remote_id = '%s/following' % self.remote_id
return self.to_ordered_collection(self.following, \
remote_id=remote_id, id_only=True, **kwargs)
def to_followers_activity(self, **kwargs):
''' activitypub followers list '''
remote_id = '%s/followers' % self.remote_id
return self.to_ordered_collection(self.followers, \
remote_id=remote_id, id_only=True, **kwargs)
def to_activity(self, pure=False):
''' override default AP serializer to add context object
idk if this is the best way to go about this '''
activity_object = super().to_activity()
activity_object['@context'] = [
'https://www.w3.org/ns/activitystreams',
'https://w3id.org/security/v1',
{
'manuallyApprovesFollowers': 'as:manuallyApprovesFollowers',
'schema': 'http://schema.org#',
'PropertyValue': 'schema:PropertyValue',
'value': 'schema:value',
}
]
return activity_object
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@receiver(models.signals.pre_save, sender=User)
def execute_before_save(sender, instance, *args, **kwargs):
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''' populate fields for new local users '''
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# this user already exists, no need to poplate fields
if instance.id:
return
if not instance.local:
# we need to generate a username that uses the domain (webfinger format)
actor_parts = urlparse(instance.remote_id)
instance.username = '%s@%s' % (instance.username, actor_parts.netloc)
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return
# populate fields for local users
instance.remote_id = 'https://%s/user/%s' % (DOMAIN, instance.username)
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instance.localname = instance.username
instance.username = '%s@%s' % (instance.username, DOMAIN)
instance.actor = instance.remote_id
instance.inbox = '%s/inbox' % instance.remote_id
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instance.shared_inbox = 'https://%s/inbox' % DOMAIN
instance.outbox = '%s/outbox' % instance.remote_id
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if not instance.private_key:
instance.private_key, instance.public_key = create_key_pair()
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@receiver(models.signals.post_save, sender=User)
def execute_after_save(sender, instance, created, *args, **kwargs):
''' create shelves for new users '''
if not instance.local or not created:
return
shelves = [{
'name': 'To Read',
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'identifier': 'to-read',
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}, {
'name': 'Currently Reading',
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'identifier': 'reading',
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}, {
'name': 'Read',
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'identifier': 'read',
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}]
for shelf in shelves:
Shelf(
name=shelf['name'],
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identifier=shelf['identifier'],
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user=instance,
editable=False
).save()