forked from mirrors/bookwyrm
fb10cb35ad
This allows other software to identify BookWyrm in calls, as well as will allow BookWyrm to differentiate between calls done from other fediverse software and BookWyrm to answer with specific BookWyrm data.
88 lines
2.6 KiB
Python
88 lines
2.6 KiB
Python
''' send out activitypub messages '''
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import json
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from django.utils.http import http_date
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import requests
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from bookwyrm import models, settings
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from bookwyrm.activitypub import ActivityEncoder
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from bookwyrm.tasks import app
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from bookwyrm.signatures import make_signature, make_digest
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def get_public_recipients(user, software=None):
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''' everybody and their public inboxes '''
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followers = user.followers.filter(local=False)
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if software:
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followers = followers.filter(bookwyrm_user=(software == 'bookwyrm'))
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# we want shared inboxes when available
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shared = followers.filter(
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shared_inbox__isnull=False
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).values_list('shared_inbox', flat=True).distinct()
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# if a user doesn't have a shared inbox, we need their personal inbox
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# iirc pixelfed doesn't have shared inboxes
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inboxes = followers.filter(
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shared_inbox__isnull=True
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).values_list('inbox', flat=True)
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return list(shared) + list(inboxes)
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def broadcast(sender, activity, software=None, \
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privacy='public', direct_recipients=None):
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''' send out an event '''
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# start with parsing the direct recipients
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recipients = [u.inbox for u in direct_recipients or []]
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# and then add any other recipients
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if privacy == 'public':
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recipients += get_public_recipients(sender, software=software)
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broadcast_task.delay(
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sender.id,
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json.dumps(activity, cls=ActivityEncoder),
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recipients
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)
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@app.task
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def broadcast_task(sender_id, activity, recipients):
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''' the celery task for broadcast '''
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sender = models.User.objects.get(id=sender_id)
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errors = []
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for recipient in recipients:
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try:
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sign_and_send(sender, activity, recipient)
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except requests.exceptions.HTTPError as e:
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errors.append({
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'error': str(e),
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'recipient': recipient,
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'activity': activity,
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})
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return errors
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def sign_and_send(sender, data, destination):
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''' crpyto whatever and http junk '''
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now = http_date()
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if not sender.key_pair.private_key:
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# this shouldn't happen. it would be bad if it happened.
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raise ValueError('No private key found for sender')
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digest = make_digest(data)
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response = requests.post(
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destination,
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data=data,
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headers={
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'Date': now,
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'Digest': digest,
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'Signature': make_signature(sender, destination, now, digest),
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'Content-Type': 'application/activity+json; charset=utf-8',
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'User-Agent': settings.USER_AGENT,
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},
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)
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if not response.ok:
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response.raise_for_status()
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return response
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