''' database schema for user data ''' from urllib.parse import urlparse 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 from .base_model import ActivityMapping class User(OrderedCollectionPageMixin, AbstractUser): ''' 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) 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( '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' ) 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) # ---- 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: url = '%s/static/images/default_avi.jpg' % DOMAIN media_type = 'image/jpeg' return activitypub.Image(media_type, url, 'Image') @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 @receiver(models.signals.pre_save, sender=User) def execute_before_save(sender, instance, *args, **kwargs): ''' populate fields for new local users ''' # 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) return # populate fields for local users instance.remote_id = 'https://%s/user/%s' % (DOMAIN, instance.username) instance.localname = instance.username instance.username = '%s@%s' % (instance.username, DOMAIN) instance.actor = instance.remote_id instance.inbox = '%s/inbox' % instance.remote_id instance.shared_inbox = 'https://%s/inbox' % DOMAIN instance.outbox = '%s/outbox' % instance.remote_id if not instance.private_key: instance.private_key, instance.public_key = create_key_pair() @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', 'identifier': 'to-read', }, { 'name': 'Currently Reading', 'identifier': 'reading', }, { 'name': 'Read', 'identifier': 'read', }] for shelf in shelves: Shelf( name=shelf['name'], identifier=shelf['identifier'], user=instance, editable=False ).save()