bookwyrm/fedireads/outgoing.py

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''' handles all the activity coming out of the server '''
from datetime import datetime
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from django.http import HttpResponseNotFound, JsonResponse
from django.views.decorators.csrf import csrf_exempt
import requests
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from urllib.parse import urlencode
from uuid import uuid4
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from fedireads import models
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from fedireads.remote_user import get_or_create_remote_user
from fedireads.broadcast import get_recipients, broadcast
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from fedireads.settings import DOMAIN
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@csrf_exempt
def outbox(request, username):
''' outbox for the requested user '''
user = models.User.objects.get(localname=username)
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if request.method != 'GET':
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')
path = 'https://%s%s?' % (DOMAIN, request.path)
# filters for use in the django queryset min/max
filters = {}
# params for the outbox page id
params = {'page': 'true'}
if min_id != None:
params['min_id'] = min_id
filters['id__gt'] = min_id
if max_id != None:
params['max_id'] = max_id
filters['id__lte'] = max_id
collection_id = path + urlencode(params)
messages = models.Activity.objects.filter(
user=user,
activity_type__in=['Article', 'Note'],
**filters
).all()[:limit]
outbox_page = {
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'@context': 'https://www.w3.org/ns/activitystreams',
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'id': collection_id,
'type': 'OrderedCollectionPage',
'partOf': 'https://oulipo.social/users/mus/outbox',
'orderedItems': [m.content for m in messages],
}
if max_id:
outbox_page['next'] = path + \
urlencode({'min_id': max_id, 'page': 'true'})
if min_id:
outbox_page['prev'] = path + \
urlencode({'max_id': min_id, 'page': 'true'})
return JsonResponse(outbox_page)
# collection overview
size = models.Review.objects.filter(user=user).count()
return JsonResponse({
'@context': 'https://www.w3.org/ns/activitystreams',
'id': '%s/outbox' % user.actor,
'type': 'OrderedCollection',
'totalItems': size,
'first': '%s/outbox?page=true' % user.actor,
'last': '%s/outbox?min_id=0&page=true' % user.actor
})
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def handle_account_search(query):
''' webfingerin' other servers '''
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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':
user = get_or_create_remote_user(link['href'])
return user
def handle_outgoing_follow(user, to_follow):
''' someone local wants to follow someone '''
uuid = uuid4()
activity = {
'@context': 'https://www.w3.org/ns/activitystreams',
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'id': 'https://%s/%s' % (DOMAIN, str(uuid)),
'summary': '',
'type': 'Follow',
'actor': user.actor,
'object': to_follow.actor,
}
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errors = broadcast(user, activity, [to_follow.inbox])
for error in errors:
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# TODO: following masto users is returning 400
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raise(error['error'])
def handle_shelve(user, book, shelf):
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''' a local user is getting a book put on their shelf '''
# update the database
models.ShelfBook(book=book, shelf=shelf, added_by=user).save()
# send out the activitypub action
summary = '%s marked %s as %s' % (
user.username,
book.data['title'],
shelf.name
)
uuid = uuid4()
activity = {
'@context': 'https://www.w3.org/ns/activitystreams',
'id': str(uuid),
'summary': summary,
'type': 'Add',
'actor': user.actor,
'object': {
'type': 'Document',
'name': book.data['title'],
'url': book.openlibrary_key
},
'target': {
'type': 'Collection',
'name': shelf.name,
'id': shelf.activitypub_id
}
}
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recipients = get_recipients(user, 'public')
models.ShelveActivity(
uuid=uuid,
user=user,
content=activity,
shelf=shelf,
book=book,
).save()
broadcast(user, activity, recipients)
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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()
# send out the activitypub action
summary = '%s removed %s from %s' % (
user.username,
book.data['title'],
shelf.name
)
uuid = uuid4()
activity = {
'@context': 'https://www.w3.org/ns/activitystreams',
'id': str(uuid),
'summary': summary,
'type': 'Remove',
'actor': user.actor,
'object': {
'type': 'Document',
'name': book.data['title'],
'url': book.openlibrary_key
},
'target': {
'type': 'Collection',
'name': shelf.name,
'id': shelf.activitypub_id
}
}
recipients = get_recipients(user, 'public')
models.ShelveActivity(
uuid=uuid,
user=user,
content=activity,
shelf=shelf,
book=book,
activity_type='Remove',
).save()
broadcast(user, activity, recipients)
def handle_review(user, book, name, content, rating):
''' post a review '''
review_uuid = uuid4()
obj = {
'@context': 'https://www.w3.org/ns/activitystreams',
'id': str(review_uuid),
'type': 'Article',
'published': datetime.utcnow().isoformat(),
'attributedTo': user.actor,
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'name': name,
'content': content,
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'inReplyTo': book.openlibrary_key, # TODO is this the right identifier?
'rating': rating, # fedireads-only custom field
'to': 'https://www.w3.org/ns/activitystreams#Public'
}
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# TODO: create alt version for mastodon
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recipients = get_recipients(user, 'public')
create_uuid = uuid4()
activity = {
'@context': 'https://www.w3.org/ns/activitystreams',
'id': str(create_uuid),
'type': 'Create',
'actor': user.actor,
'to': ['%s/followers' % user.actor],
'cc': ['https://www.w3.org/ns/activitystreams#Public'],
'object': obj,
}
broadcast(user, activity, recipients)