bookwyrm/fedireads/outgoing.py
2020-05-10 17:40:22 -07:00

373 lines
12 KiB
Python

''' handles all the activity coming out of the server '''
from datetime import datetime
from urllib.parse import urlencode
from django.db import IntegrityError, transaction
from django.http import HttpResponseNotFound, JsonResponse
from django.views.decorators.csrf import csrf_exempt
import requests
from fedireads import activitypub
from fedireads import models
from fedireads.broadcast import broadcast
from fedireads.status import create_review, create_status
from fedireads.status import create_quotation, create_comment
from fedireads.status import create_tag, create_notification, create_rating
from fedireads.remote_user import get_or_create_remote_user
@csrf_exempt
def outbox(request, username):
''' outbox for the requested user '''
if request.method != 'GET':
return HttpResponseNotFound()
try:
user = models.User.objects.get(localname=username)
except models.User.DoesNotExist:
return HttpResponseNotFound()
# paginated list of messages
if request.GET.get('page'):
limit = 20
min_id = request.GET.get('min_id')
max_id = request.GET.get('max_id')
# filters for use in the django queryset min/max
filters = {}
# params for the outbox page id
params = {'page': 'true'}
if min_id is not None:
params['min_id'] = min_id
filters['id__gt'] = min_id
if max_id is not None:
params['max_id'] = max_id
filters['id__lte'] = max_id
page_id = user.outbox + '?' + urlencode(params)
statuses = models.Status.objects.filter(
user=user,
**filters
).select_subclasses().all()[:limit]
return JsonResponse(
activitypub.get_outbox_page(user, page_id, statuses, max_id, min_id)
)
# collection overview
size = models.Status.objects.filter(user=user).count()
return JsonResponse(activitypub.get_outbox(user, size))
def handle_account_search(query):
''' webfingerin' other servers '''
user = None
domain = query.split('@')[1]
try:
user = models.User.objects.get(username=query)
except models.User.DoesNotExist:
url = 'https://%s/.well-known/webfinger?resource=acct:%s' % \
(domain, query)
response = requests.get(url)
if not response.ok:
response.raise_for_status()
data = response.json()
for link in data['links']:
if link['rel'] == 'self':
try:
user = get_or_create_remote_user(link['href'])
except KeyError:
return HttpResponseNotFound()
return user
def handle_follow(user, to_follow):
''' someone local wants to follow someone '''
activity = activitypub.get_follow_request(user, to_follow)
broadcast(user, activity, direct_recipients=[to_follow])
def handle_unfollow(user, to_unfollow):
''' someone local wants to follow someone '''
relationship = models.UserFollows.objects.get(
user_subject=user,
user_object=to_unfollow
)
activity = activitypub.get_unfollow(relationship)
broadcast(user, activity, direct_recipients=[to_unfollow])
to_unfollow.followers.remove(user)
def handle_accept(user, to_follow, follow_request):
''' send an acceptance message to a follow request '''
with transaction.atomic():
relationship = models.UserFollows.from_request(follow_request)
follow_request.delete()
relationship.save()
activity = activitypub.get_accept(to_follow, follow_request)
broadcast(to_follow, activity, privacy='direct', direct_recipients=[user])
def handle_reject(user, to_follow, relationship):
''' a local user who managed follows rejects a follow request '''
relationship.delete()
activity = activitypub.get_reject(to_follow, relationship)
broadcast(to_follow, activity, privacy='direct', direct_recipients=[user])
def handle_shelve(user, book, shelf):
''' a local user is getting a book put on their shelf '''
# update the database
models.ShelfBook(book=book, shelf=shelf, added_by=user).save()
activity = activitypub.get_add(user, book, shelf)
broadcast(user, activity)
# tell the world about this cool thing that happened
verb = {
'to-read': 'wants to read',
'reading': 'started reading',
'read': 'finished reading'
}[shelf.identifier]
message = '%s "%s"' % (verb, book.title)
status = create_status(user, message, mention_books=[book])
status.status_type = 'Update'
status.save()
if shelf.identifier == 'reading':
read = models.ReadThrough(
user=user,
book=book,
start_date=datetime.now())
read.save()
elif shelf.identifier == 'read':
read = models.ReadThrough.objects.filter(
user=user,
book=book,
finish_date=None).order_by('-created_date').first()
if not read:
read = models.ReadThrough(
user=user,
book=book,
start_date=datetime.now())
read.finish_date = datetime.now()
read.save()
activity = activitypub.get_status(status)
create_activity = activitypub.get_create(user, activity)
broadcast(user, create_activity)
def handle_unshelve(user, book, shelf):
''' a local user is getting a book put on their shelf '''
# update the database
row = models.ShelfBook.objects.get(book=book, shelf=shelf)
row.delete()
activity = activitypub.get_remove(user, book, shelf)
broadcast(user, activity)
def handle_import_books(user, items):
''' process a goodreads csv and then post about it '''
new_books = []
for item in items:
if item.shelf:
desired_shelf = models.Shelf.objects.get(
identifier=item.shelf,
user=user
)
if isinstance(item.book, models.Work):
item.book = item.book.default_edition
if not item.book:
continue
_, created = models.ShelfBook.objects.get_or_create(
book=item.book, shelf=desired_shelf, added_by=user)
if created:
new_books.append(item.book)
activity = activitypub.get_add(user, item.book, desired_shelf)
broadcast(user, activity)
if item.rating or item.review:
review_title = "Review of {!r} on Goodreads".format(
item.book.title,
) if item.review else ""
handle_review(
user,
item.book,
review_title,
item.review,
item.rating,
)
for read in item.reads:
read.book = item.book
read.user = user
read.save()
if new_books:
message = 'imported {} books'.format(len(new_books))
status = create_status(user, message, mention_books=new_books)
status.status_type = 'Update'
status.save()
create_activity = activitypub.get_create(
user, activitypub.get_status(status))
broadcast(user, create_activity)
return status
def handle_rate(user, book, rating):
''' a review that's just a rating '''
builder = create_rating
fr_serializer = activitypub.get_rating
ap_serializer = activitypub.get_rating_note
handle_status(user, book, builder, fr_serializer, ap_serializer, rating)
def handle_review(user, book, name, content, rating):
''' post a review '''
# validated and saves the review in the database so it has an id
builder = create_review
fr_serializer = activitypub.get_review
ap_serializer = activitypub.get_review_article
handle_status(
user, book, builder, fr_serializer,
ap_serializer, name, content, rating)
def handle_quotation(user, book, content, quote):
''' post a review '''
# validated and saves the review in the database so it has an id
builder = create_quotation
fr_serializer = activitypub.get_quotation
ap_serializer = activitypub.get_quotation_article
handle_status(
user, book, builder, fr_serializer, ap_serializer, content, quote)
def handle_comment(user, book, content):
''' post a comment '''
# validated and saves the review in the database so it has an id
builder = create_comment
fr_serializer = activitypub.get_comment
ap_serializer = activitypub.get_comment_article
handle_status(
user, book, builder, fr_serializer, ap_serializer, content)
def handle_status(user, book_id, \
builder, fr_serializer, ap_serializer, *args):
''' generic handler for statuses '''
book = models.Book.objects.get(id=book_id)
status = builder(user, book, *args)
activity = fr_serializer(status)
create_activity = activitypub.get_create(user, activity)
broadcast(user, create_activity, software='fedireads')
# re-format the activity for non-fedireads servers
remote_activity = ap_serializer(status)
remote_create_activity = activitypub.get_create(user, remote_activity)
broadcast(user, remote_create_activity, software='other')
def handle_tag(user, book, name):
''' tag a book '''
tag = create_tag(user, book, name)
tag_activity = activitypub.get_add_tag(tag)
broadcast(user, tag_activity)
def handle_untag(user, book, name):
''' tag a book '''
book = models.Book.objects.get(id=book)
tag = models.Tag.objects.get(name=name, book=book, user=user)
tag_activity = activitypub.get_remove_tag(tag)
tag.delete()
broadcast(user, tag_activity)
def handle_reply(user, review, content):
''' respond to a review or status '''
# validated and saves the comment in the database so it has an id
reply = create_status(user, content, reply_parent=review)
if reply.reply_parent:
create_notification(
reply.reply_parent.user,
'REPLY',
related_user=user,
related_status=reply,
)
reply_activity = activitypub.get_status(reply)
create_activity = activitypub.get_create(user, reply_activity)
broadcast(user, create_activity)
def handle_favorite(user, status):
''' a user likes a status '''
try:
favorite = models.Favorite.objects.create(
status=status,
user=user
)
except IntegrityError:
# you already fav'ed that
return
fav_activity = activitypub.get_favorite(favorite)
broadcast(
user, fav_activity, privacy='direct', direct_recipients=[status.user])
def handle_unfavorite(user, status):
''' a user likes a status '''
try:
favorite = models.Favorite.objects.get(
status=status,
user=user
)
except models.Favorite.DoesNotExist:
# can't find that status, idk
return
fav_activity = activitypub.get_unfavorite(favorite)
broadcast(user, fav_activity, direct_recipients=[status.user])
def handle_boost(user, status):
''' a user wishes to boost a status '''
if models.Boost.objects.filter(
boosted_status=status, user=user).exists():
# you already boosted that.
return
boost = models.Boost.objects.create(
boosted_status=status,
user=user,
)
boost.save()
boost_activity = activitypub.get_boost(boost)
broadcast(user, boost_activity)
def handle_update_book(user, book):
''' broadcast the news about our book '''
book_activity = activitypub.get_book(book)
update_activity = activitypub.get_update(user, book_activity)
broadcast(user, update_activity)
def handle_update_user(user):
''' broadcast editing a user's profile '''
actor = activitypub.get_actor(user)
update_activity = activitypub.get_update(user, actor)
broadcast(user, update_activity)