forked from mirrors/bookwyrm
133 lines
3.8 KiB
Python
133 lines
3.8 KiB
Python
''' activitypub json for collections '''
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from uuid import uuid4
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from urllib.parse import urlencode
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from .status import get_status, get_review
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def get_outbox(user, size):
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''' helper function for creating an outbox '''
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return get_ordered_collection(user.outbox, size)
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def get_outbox_page(user, page_id, statuses, max_id, min_id):
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''' helper for formatting outbox pages '''
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# not generalizing this more because the format varies for some reason
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page = {
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'@context': 'https://www.w3.org/ns/activitystreams',
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'id': page_id,
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'type': 'OrderedCollectionPage',
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'partOf': user.outbox,
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'orderedItems': [],
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}
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for status in statuses:
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if status.status_type == 'Review':
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status_activity = get_review(status)
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else:
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status_activity = get_status(status)
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page['orderedItems'].append(status_activity)
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if max_id:
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page['next'] = user.outbox + '?' + \
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urlencode({'min_id': max_id, 'page': 'true'})
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if min_id:
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page['prev'] = user.outbox + '?' + \
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urlencode({'max_id': min_id, 'page': 'true'})
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return page
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def get_followers(user, page, follow_queryset):
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''' list of people who follow a user '''
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id_slug = '%s/followers' % user.actor
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return get_follow_info(id_slug, page, follow_queryset)
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def get_following(user, page, follow_queryset):
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''' list of people who follow a user '''
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id_slug = '%s/following' % user.actor
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return get_follow_info(id_slug, page, follow_queryset)
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def get_follow_info(id_slug, page, follow_queryset):
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''' a list of followers or following '''
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if page:
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return get_follow_page(follow_queryset, id_slug, page)
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count = follow_queryset.count()
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return {
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'@context': 'https://www.w3.org/ns/activitystreams',
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'id': id_slug,
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'type': 'OrderedCollection',
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'totalItems': count,
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'first': '%s?page=1' % id_slug,
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}
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# TODO: generalize these pagination functions
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def get_follow_page(user_list, id_slug, page):
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''' format a list of followers/following '''
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page = int(page)
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page_length = 10
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start = (page - 1) * page_length
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end = start + page_length
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follower_page = user_list.all()[start:end]
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data = {
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'@context': 'https://www.w3.org/ns/activitystreams',
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'id': '%s?page=%d' % (id_slug, page),
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'type': 'OrderedCollectionPage',
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'totalItems': user_list.count(),
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'partOf': id_slug,
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'orderedItems': [u.actor for u in follower_page],
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}
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if end <= user_list.count():
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# there are still more pages
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data['next'] = '%s?page=%d' % (id_slug, page + 1)
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if start > 0:
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data['prev'] = '%s?page=%d' % (id_slug, page - 1)
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return data
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def get_ordered_collection(id_slug, size):
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''' create an ordered collection '''
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return {
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'@context': 'https://www.w3.org/ns/activitystreams',
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'id': id_slug,
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'type': 'OrderedCollection',
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'totalItems': size,
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'first': '%s?page=true' % id_slug,
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'last': '%s?min_id=0&page=true' % id_slug
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}
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def get_add(*args):
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''' activitypub Add activity '''
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return get_add_remove(*args, action='Add')
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def get_remove(*args):
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''' activitypub Add activity '''
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return get_add_remove(*args, action='Remove')
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def get_add_remove(user, book, shelf, action='Add'):
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''' format an Add or Remove json blob '''
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uuid = uuid4()
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return {
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'@context': 'https://www.w3.org/ns/activitystreams',
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'id': str(uuid),
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'type': action,
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'actor': user.actor,
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'object': {
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# TODO: document??
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'type': 'Document',
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'name': book.data['title'],
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'url': book.openlibrary_key
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},
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'target': {
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'type': 'Collection',
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'name': shelf.name,
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'id': shelf.absolute_id,
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}
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}
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