forked from mirrors/bookwyrm
325 lines
10 KiB
Python
325 lines
10 KiB
Python
''' handles all the activity coming out of the server '''
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from datetime import datetime
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from django.db import IntegrityError, transaction
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from django.http import HttpResponseNotFound, JsonResponse
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from django.views.decorators.csrf import csrf_exempt
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import requests
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from bookwyrm import activitypub
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from bookwyrm import models
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from bookwyrm.broadcast import broadcast
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from bookwyrm.status import create_review, create_status
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from bookwyrm.status import create_quotation, create_comment
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from bookwyrm.status import create_tag, create_notification, create_rating
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from bookwyrm.status import create_generated_note
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from bookwyrm.remote_user import get_or_create_remote_user
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@csrf_exempt
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def outbox(request, username):
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''' outbox for the requested user '''
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if request.method != 'GET':
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return HttpResponseNotFound()
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try:
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user = models.User.objects.get(localname=username)
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except models.User.DoesNotExist:
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return HttpResponseNotFound()
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# collection overview
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return JsonResponse(
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user.to_outbox(**request.GET),
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encoder=activitypub.ActivityEncoder
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)
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def handle_account_search(query):
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''' webfingerin' other servers '''
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user = None
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domain = query.split('@')[1]
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try:
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user = models.User.objects.get(username=query)
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except models.User.DoesNotExist:
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url = 'https://%s/.well-known/webfinger?resource=acct:%s' % \
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(domain, query)
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try:
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response = requests.get(url)
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except requests.exceptions.ConnectionError:
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return None
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if not response.ok:
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return None
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data = response.json()
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for link in data['links']:
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if link['rel'] == 'self':
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try:
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user = get_or_create_remote_user(link['href'])
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except KeyError:
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return None
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return [user]
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def handle_follow(user, to_follow):
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''' someone local wants to follow someone '''
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try:
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relationship, _ = models.UserFollowRequest.objects.get_or_create(
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user_subject=user,
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user_object=to_follow,
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)
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except IntegrityError as err:
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if err.__cause__.diag.constraint_name != 'userfollowrequest_unique':
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raise
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activity = relationship.to_activity()
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broadcast(user, activity, direct_recipients=[to_follow])
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def handle_unfollow(user, to_unfollow):
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''' someone local wants to follow someone '''
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relationship = models.UserFollows.objects.get(
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user_subject=user,
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user_object=to_unfollow
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)
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activity = relationship.to_undo_activity(user)
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broadcast(user, activity, direct_recipients=[to_unfollow])
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to_unfollow.followers.remove(user)
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def handle_accept(user, to_follow, follow_request):
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''' send an acceptance message to a follow request '''
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with transaction.atomic():
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relationship = models.UserFollows.from_request(follow_request)
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follow_request.delete()
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relationship.save()
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activity = relationship.to_accept_activity()
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broadcast(to_follow, activity, privacy='direct', direct_recipients=[user])
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def handle_reject(user, to_follow, relationship):
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''' a local user who managed follows rejects a follow request '''
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activity = relationship.to_reject_activity(user)
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relationship.delete()
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broadcast(to_follow, activity, privacy='direct', direct_recipients=[user])
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def handle_shelve(user, book, shelf):
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''' a local user is getting a book put on their shelf '''
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# update the database
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shelve = models.ShelfBook(book=book, shelf=shelf, added_by=user)
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shelve.save()
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broadcast(user, shelve.to_add_activity(user))
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# tell the world about this cool thing that happened
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message = {
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'to-read': 'wants to read',
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'reading': 'started reading',
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'read': 'finished reading'
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}[shelf.identifier]
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status = create_generated_note(user, message, mention_books=[book])
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status.save()
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if shelf.identifier == 'reading':
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read = models.ReadThrough(
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user=user,
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book=book,
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start_date=datetime.now())
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read.save()
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elif shelf.identifier == 'read':
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read = models.ReadThrough.objects.filter(
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user=user,
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book=book,
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finish_date=None).order_by('-created_date').first()
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if not read:
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read = models.ReadThrough(
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user=user,
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book=book,
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start_date=datetime.now())
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read.finish_date = datetime.now()
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read.save()
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broadcast(user, status.to_create_activity(user))
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def handle_unshelve(user, book, shelf):
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''' a local user is getting a book put on their shelf '''
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# update the database
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row = models.ShelfBook.objects.get(book=book, shelf=shelf)
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activity = row.to_remove_activity(user)
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row.delete()
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broadcast(user, activity)
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def handle_import_books(user, items):
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''' process a goodreads csv and then post about it '''
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new_books = []
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for item in items:
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if item.shelf:
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desired_shelf = models.Shelf.objects.get(
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identifier=item.shelf,
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user=user
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)
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if isinstance(item.book, models.Work):
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item.book = item.book.default_edition
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if not item.book:
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continue
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shelf_book, created = models.ShelfBook.objects.get_or_create(
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book=item.book, shelf=desired_shelf, added_by=user)
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if created:
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new_books.append(item.book)
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activity = shelf_book.to_add_activity(user)
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broadcast(user, activity)
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if item.rating or item.review:
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review_title = "Review of {!r} on Goodreads".format(
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item.book.title,
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) if item.review else ""
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handle_review(
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user,
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item.book,
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review_title,
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item.review,
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item.rating,
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)
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for read in item.reads:
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read.book = item.book
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read.user = user
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read.save()
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if new_books:
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message = 'imported {} books'.format(len(new_books))
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status = create_generated_note(user, message, mention_books=new_books)
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status.save()
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broadcast(user, status.to_create_activity(user))
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return status
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return None
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def handle_rate(user, book, rating):
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''' a review that's just a rating '''
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builder = create_rating
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handle_status(user, book, builder, rating)
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def handle_review(user, book, name, content, rating):
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''' post a review '''
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# validated and saves the review in the database so it has an id
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builder = create_review
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handle_status(user, book, builder, name, content, rating)
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def handle_quotation(user, book, content, quote):
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''' post a review '''
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# validated and saves the review in the database so it has an id
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builder = create_quotation
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handle_status(user, book, builder, content, quote)
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def handle_comment(user, book, content):
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''' post a comment '''
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# validated and saves the review in the database so it has an id
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builder = create_comment
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handle_status(user, book, builder, content)
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def handle_status(user, book_id, builder, *args):
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''' generic handler for statuses '''
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book = models.Edition.objects.get(id=book_id)
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status = builder(user, book, *args)
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broadcast(user, status.to_create_activity(user), software='bookwyrm')
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# re-format the activity for non-bookwyrm servers
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remote_activity = status.to_create_activity(user, pure=True)
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broadcast(user, remote_activity, software='other')
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def handle_tag(user, book, name):
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''' tag a book '''
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tag = create_tag(user, book, name)
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broadcast(user, tag.to_add_activity(user))
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def handle_untag(user, book, name):
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''' tag a book '''
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book = models.Book.objects.get(id=book)
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tag = models.Tag.objects.get(name=name, book=book, user=user)
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tag_activity = tag.to_remove_activity(user)
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tag.delete()
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broadcast(user, tag_activity)
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def handle_reply(user, review, content):
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''' respond to a review or status '''
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# validated and saves the comment in the database so it has an id
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reply = create_status(user, content, reply_parent=review)
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if reply.reply_parent:
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create_notification(
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reply.reply_parent.user,
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'REPLY',
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related_user=user,
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related_status=reply,
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)
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broadcast(user, reply.to_create_activity(user))
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def handle_favorite(user, status):
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''' a user likes a status '''
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try:
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favorite = models.Favorite.objects.create(
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status=status,
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user=user
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)
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except IntegrityError:
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# you already fav'ed that
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return
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fav_activity = favorite.to_activity()
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broadcast(
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user, fav_activity, privacy='direct', direct_recipients=[status.user])
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def handle_unfavorite(user, status):
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''' a user likes a status '''
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try:
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favorite = models.Favorite.objects.get(
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status=status,
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user=user
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)
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except models.Favorite.DoesNotExist:
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# can't find that status, idk
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return
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fav_activity = activitypub.Undo(actor=user, object=favorite)
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broadcast(user, fav_activity, direct_recipients=[status.user])
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def handle_boost(user, status):
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''' a user wishes to boost a status '''
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if models.Boost.objects.filter(
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boosted_status=status, user=user).exists():
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# you already boosted that.
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return
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boost = models.Boost.objects.create(
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boosted_status=status,
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user=user,
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)
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boost.save()
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boost_activity = boost.to_activity()
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broadcast(user, boost_activity)
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def handle_update_book(user, book):
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''' broadcast the news about our book '''
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broadcast(user, book.to_update_activity(user))
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def handle_update_user(user):
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''' broadcast editing a user's profile '''
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broadcast(user, user.to_update_activity())
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