mirror of
https://git.sr.ht/~tsileo/microblog.pub
synced 2024-12-22 21:24:28 +00:00
72 lines
2.5 KiB
Python
72 lines
2.5 KiB
Python
import logging
|
|
|
|
import requests
|
|
from urllib.parse import urlparse
|
|
from Crypto.PublicKey import RSA
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class NotAnActorError(Exception):
|
|
def __init__(self, activity):
|
|
self.activity = activity
|
|
|
|
|
|
class ActorService(object):
|
|
def __init__(self, user_agent, col, actor_id, actor_data, instances):
|
|
logger.debug(f'Initializing ActorService user_agent={user_agent}')
|
|
self._user_agent = user_agent
|
|
self._col = col
|
|
self._in_mem = {actor_id: actor_data}
|
|
self._instances = instances
|
|
self._known_instances = set()
|
|
|
|
def _fetch(self, actor_url):
|
|
logger.debug(f'fetching remote object {actor_url}')
|
|
resp = requests.get(actor_url, headers={
|
|
'Accept': 'application/activity+json',
|
|
'User-Agent': self._user_agent,
|
|
})
|
|
resp.raise_for_status()
|
|
return resp.json()
|
|
|
|
def get(self, actor_url, reload_cache=False):
|
|
logger.info(f'get actor {actor_url} (reload_cache={reload_cache})')
|
|
|
|
if actor_url in self._in_mem:
|
|
return self._in_mem[actor_url]
|
|
|
|
instance = urlparse(actor_url)._replace(path='', query='', fragment='').geturl()
|
|
if instance not in self._known_instances:
|
|
self._known_instances.add(instance)
|
|
if not self._instances.find_one({'instance': instance}):
|
|
self._instances.insert({'instance': instance, 'first_object': actor_url})
|
|
|
|
if reload_cache:
|
|
actor = self._fetch(actor_url)
|
|
self._in_mem[actor_url] = actor
|
|
self._col.update({'actor_id': actor_url}, {'$set': {'cached_response': actor}}, upsert=True)
|
|
return actor
|
|
|
|
cached_actor = self._col.find_one({'actor_id': actor_url})
|
|
if cached_actor:
|
|
return cached_actor['cached_response']
|
|
|
|
actor = self._fetch(actor_url)
|
|
if not 'type' in actor:
|
|
raise NotAnActorError(None)
|
|
if actor['type'] != 'Person':
|
|
raise NotAnActorError(actor)
|
|
|
|
self._col.update({'actor_id': actor_url}, {'$set': {'cached_response': actor}}, upsert=True)
|
|
self._in_mem[actor_url] = actor
|
|
return actor
|
|
|
|
def get_public_key(self, actor_url, reload_cache=False):
|
|
profile = self.get(actor_url, reload_cache=reload_cache)
|
|
pub = profile['publicKey']
|
|
return pub['id'], RSA.importKey(pub['publicKeyPem'])
|
|
|
|
def get_inbox_url(self, actor_url, reload_cache=False):
|
|
profile = self.get(actor_url, reload_cache=reload_cache)
|
|
return profile.get('inbox')
|