create Message class
This commit is contained in:
Izalia Mae
parent
3b85e2c2f2
commit
c66f9d34b3
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@ -81,9 +81,7 @@ def cli_inbox_follow(actor):
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if not actor_data:
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return click.echo(f'Error: Failed to fetch actor: {actor}')
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inbox = misc.get_actor_inbox(actor_data)
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database.add_inbox(inbox)
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database.add_inbox(actor_data.shared_inbox)
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database.save()
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run_in_loop(misc.follow_remote_actor, actor)
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183
relay/misc.py
183
relay/misc.py
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@ -4,6 +4,7 @@ import json
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import logging
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import socket
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import traceback
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import uuid
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from Crypto.Hash import SHA, SHA256, SHA512
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from Crypto.PublicKey import RSA
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@ -57,27 +58,12 @@ def create_signature_header(headers):
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return ','.join(chunks)
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def distill_object_id(activity):
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logging.debug(f'>> determining object ID for {activity["object"]}')
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try:
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return activity['object']['id']
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except TypeError:
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return activity['object']
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def distill_inboxes(actor, object_id):
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database = app['database']
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origin_hostname = urlparse(object_id).hostname
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actor_inbox = get_actor_inbox(actor)
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targets = []
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for inbox in database.inboxes:
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if inbox != actor_inbox or urlparse(inbox).hostname != origin_hostname:
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targets.append(inbox)
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return targets
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if inbox != actor.shared_inbox or urlparse(inbox).hostname != urlparse(object_id).hostname:
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yield inbox
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def generate_body_digest(body):
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@ -93,10 +79,6 @@ def generate_body_digest(body):
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return bodyhash
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def get_actor_inbox(actor):
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return actor.get('endpoints', {}).get('sharedInbox', actor['inbox'])
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def sign_signing_string(sigstring, key):
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pkcs = PKCS1_v1_5.new(key)
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h = SHA256.new()
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@ -162,14 +144,11 @@ async def follow_remote_actor(actor_uri):
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config = app['config']
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actor = await request(actor_uri)
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inbox = get_actor_inbox(actor)
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if not actor:
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logging.error(f'failed to fetch actor at: {actor_uri}')
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return
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logging.verbose(f'sending follow request: {actor_uri}')
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message = {
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"@context": "https://www.w3.org/ns/activitystreams",
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"type": "Follow",
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@ -179,7 +158,8 @@ async def follow_remote_actor(actor_uri):
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"actor": f"https://{config.host}/actor"
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}
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await request(inbox, message)
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logging.verbose(f'sending follow request: {actor_uri}')
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await request(actor.shared_inbox, message)
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async def unfollow_remote_actor(actor_uri):
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@ -191,9 +171,6 @@ async def unfollow_remote_actor(actor_uri):
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logging.error(f'failed to fetch actor: {actor_uri}')
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return
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inbox = get_actor_inbox(actor)
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logging.verbose(f'sending unfollow request to inbox: {inbox}')
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message = {
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"@context": "https://www.w3.org/ns/activitystreams",
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"type": "Undo",
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@ -208,7 +185,8 @@ async def unfollow_remote_actor(actor_uri):
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"actor": f"https://{config.host}/actor"
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}
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await request(inbox, message)
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logging.verbose(f'sending unfollow request to inbox: {actor.shared_inbox}')
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await request(actor.shared_inbox, message)
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async def request(uri, data=None, force=False, sign_headers=True, activity=True):
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@ -265,16 +243,28 @@ async def request(uri, data=None, force=False, sign_headers=True, activity=True)
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async with session.request(method, uri, headers=headers, data=data) as resp:
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## aiohttp has been known to leak if the response hasn't been read,
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## so we're just gonna read the request no matter what
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resp_data = await resp.json()
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resp_data = await resp.read()
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if resp.status not in [200, 202]:
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if not resp_data:
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logging.verbose(f'Received error when requesting {uri}: {resp.status} {resp_data}')
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return
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logging.verbose(f'Received error when sending {action} to {uri}: {resp.status} {resp_data}')
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## Not expecting a response, so just return
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if resp.status == 202:
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return
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elif resp.status != 200:
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if not resp_data:
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return logging.verbose(f'Received error when requesting {uri}: {resp.status} {resp_data}')
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return logging.verbose(f'Received error when sending {action} to {uri}: {resp.status} {resp_data}')
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if resp.content_type == 'application/activity+json':
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resp_data = await resp.json(loads=Message.new_from_json)
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elif resp.content_type == 'application/json':
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resp_data = await resp.json(loads=DotDict.new_from_json)
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else:
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logging.verbose(f'Invalid Content-Type for "{url}": {resp.content_type}')
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return logging.debug(f'Response: {resp_data}')
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logging.debug(f'{uri} >> resp {resp_data}')
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app['cache'].json[uri] = resp_data
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@ -354,8 +344,127 @@ class DotDict(dict):
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@classmethod
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def new_from_json(cls, data):
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return cls(json.loads(data))
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if not data:
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raise JSONDecodeError('Empty body', data, 1)
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try:
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return cls(json.loads(data))
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except ValueError:
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raise JSONDecodeError('Invalid body', data, 1)
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def to_json(self, indent=None):
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return json.dumps(self, indent=indent)
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class Message(DotDict):
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@classmethod
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def new_actor(cls, host, pubkey, description=None):
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return cls({
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'@context': 'https://www.w3.org/ns/activitystreams',
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'id': f'https://{host}/actor',
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'type': 'Application',
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'preferredUsername': 'relay',
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'name': 'ActivityRelay',
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'summary': description or 'ActivityRelay bot',
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'followers': f'https://{host}/followers',
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'following': f'https://{host}/following',
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'inbox': f'https://{host}/inbox',
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'url': f'https://{host}/inbox',
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'endpoints': {
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'sharedInbox': f'https://{host}/inbox'
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},
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'publicKey': {
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'id': f'https://{host}/actor#main-key',
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'owner': f'https://{host}/actor',
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'publicKeyPem': pubkey
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}
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})
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@classmethod
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def new_announce(cls, host, object):
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return cls({
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'@context': 'https://www.w3.org/ns/activitystreams',
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'id': f'https://{host}/activities/{uuid.uuid4()}',
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'type': 'Announce',
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'to': [f'https://{host}/followers'],
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'actor': f'https://{host}/actor',
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'object': object
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})
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@classmethod
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def new_follow(cls, host, actor):
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return cls({
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'@context': 'https://www.w3.org/ns/activitystreams',
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'type': 'Follow',
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'to': [actor],
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'object': actor,
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'id': f'https://{host}/activities/{uuid.uuid4()}',
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'actor': f'https://{host}/actor'
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})
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@classmethod
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def new_unfollow(cls, host, actor, follow):
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return cls({
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'@context': 'https://www.w3.org/ns/activitystreams',
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'id': f'https://{host}/activities/{uuid.uuid4()}',
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'type': 'Undo',
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'to': [actor],
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'actor': f'https://{host}/actor',
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'object': follow
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})
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@classmethod
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def new_response(cls, host, actor, followid, accept):
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return cls({
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'@context': 'https://www.w3.org/ns/activitystreams',
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'id': f'https://{host}/activities/{uuid.uuid4()}',
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'type': 'Accept' if accept else 'Reject',
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'to': [actor],
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'actor': f'https://{host}/actor',
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'object': {
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'id': followid,
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'type': 'Follow',
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'object': f'https://{host}/actor',
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'actor': actor
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}
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})
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# misc properties
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@property
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def domain(self):
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return urlparse(self.id).hostname
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# actor properties
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@property
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def pubkey(self):
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return self.publicKey.publicKeyPem
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@property
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def shared_inbox(self):
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return self.get('endpoints', {}).get('sharedInbox', self.inbox)
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# activity properties
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@property
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def actorid(self):
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if isinstance(self.actor, dict):
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return self.actor.id
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return self.actor
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@property
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def objectid(self):
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if isinstance(self.object, dict):
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return self.object.id
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return self.object
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@ -6,113 +6,103 @@ from uuid import uuid4
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from . import app, misc
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async def handle_relay(actor, data, request):
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async def handle_relay(request, actor, data, software):
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cache = app['cache'].objects
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object_id = misc.distill_object_id(data)
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config = app['config']
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if object_id in cache:
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logging.verbose(f'already relayed {object_id} as {cache[object_id]}')
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if data.objectid in cache:
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logging.verbose(f'already relayed {data.objectid} as {cache[data.objectid]}')
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return
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logging.verbose(f'Relaying post from {actor["id"]}')
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logging.verbose(f'Relaying post from {data.actorid}')
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activity_id = f"https://{request.host}/activities/{uuid4()}"
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message = {
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"@context": "https://www.w3.org/ns/activitystreams",
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"type": "Announce",
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"to": [f"https://{request.host}/followers"],
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"actor": f"https://{request.host}/actor",
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"object": object_id,
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"id": activity_id
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}
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message = misc.Message.new_announce(
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host = config.host,
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object = data.objectid
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)
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logging.debug(f'>> relay: {message}')
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inboxes = misc.distill_inboxes(actor, object_id)
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inboxes = misc.distill_inboxes(actor, data.objectid)
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futures = [misc.request(inbox, data=message) for inbox in inboxes]
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asyncio.ensure_future(asyncio.gather(*futures))
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cache[object_id] = activity_id
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cache[data.objectid] = message.id
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async def handle_forward(actor, data, request):
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async def handle_forward(request, actor, data, software):
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cache = app['cache'].objects
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object_id = data['id']
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config = app['config']
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if object_id in cache:
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logging.verbose(f'already forwarded {object_id}')
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if data.id in cache:
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logging.verbose(f'already forwarded {data.id}')
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return
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activity_id = f"https://{request.host}/activities/{uuid4()}"
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message = misc.Message.new_announce(
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host = config.host,
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object = data
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)
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message = {
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"@context": "https://www.w3.org/ns/activitystreams",
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"type": "Announce",
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"to": [f"https://{request.host}/followers"],
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"actor": f"https://{request.host}/actor",
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"object": data,
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"id": activity_id
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}
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logging.verbose(f'Forwarding post from {actor["id"]}')
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logging.verbose(f'Forwarding post from {actor.id}')
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logging.debug(f'>> Relay {data}')
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inboxes = misc.distill_inboxes(actor, object_id)
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inboxes = misc.distill_inboxes(actor, data.id)
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futures = [misc.request(inbox, data=message) for inbox in inboxes]
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asyncio.ensure_future(asyncio.gather(*futures))
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cache[object_id] = activity_id
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cache[data.id] = message.id
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async def handle_follow(actor, data, request):
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async def handle_follow(request, actor, data, software):
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config = app['config']
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database = app['database']
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inbox = misc.get_actor_inbox(actor)
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dbinbox = database.get_inbox(inbox)
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if database.add_inbox(inbox, data.id):
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database.set_followid(actor.id, data.id)
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if not database.add_inbox(inbox, data['id']):
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database.set_followid(inbox, data['id'])
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database.save()
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database.save()
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asyncio.ensure_future(misc.follow_remote_actor(actor['id']))
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await misc.request(
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actor.shared_inbox,
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misc.Message.new_response(
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host = config.host,
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actor = actor.id,
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followid = data.id,
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accept = True
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)
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)
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message = {
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"@context": "https://www.w3.org/ns/activitystreams",
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"type": "Accept",
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"to": [actor["id"]],
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"actor": config.actor,
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# this is wrong per litepub, but mastodon < 2.4 is not compliant with that profile.
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"object": {
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"type": "Follow",
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"id": data["id"],
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"object": config.actor,
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"actor": actor["id"]
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},
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"id": f"https://{request.host}/activities/{uuid4()}",
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}
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asyncio.ensure_future(misc.request(inbox, message))
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# Are Akkoma and Pleroma the only two that expect a follow back?
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# Ignoring only Mastodon for now
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if software != 'mastodon':
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misc.request(
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actor.shared_inbox,
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misc.Message.new_follow(
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host = config.host,
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actor = actor.id
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)
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)
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async def handle_undo(actor, data, request):
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async def handle_undo(request, actor, data, software):
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## If the object is not a Follow, forward it
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if data['object']['type'] != 'Follow':
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return await handle_forward(actor, data, request)
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return await handle_forward(request, actor, data, software)
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database = app['database']
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objectid = misc.distill_object_id(data)
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if not database.del_inbox(actor['id'], objectid):
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if not database.del_inbox(actor.domain, data.id):
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return
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database.save()
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await misc.unfollow_remote_actor(actor['id'])
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message = misc.Message.new_unfollow(
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host = config.host,
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actor = actor.id,
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follow = data
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)
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await misc.request(actor.shared_inbox, message)
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processors = {
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@ -125,9 +115,9 @@ processors = {
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}
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async def run_processor(request, data, actor):
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if data['type'] not in processors:
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async def run_processor(request, actor, data, software):
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if data.type not in processors:
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return
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logging.verbose(f'New activity from actor: {actor["id"]} {data["type"]}')
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return await processors[data['type']](actor, data, request)
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logging.verbose(f'New "{data.type}" from actor: {actor.id}')
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return await processors[data.type](request, actor, data, software)
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@ -3,10 +3,10 @@ import subprocess
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import traceback
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from aiohttp.web import HTTPForbidden, HTTPUnauthorized, Response, json_response
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from urllib.parse import urlparse
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from . import __version__, app, misc
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from .http_debug import STATS
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from .misc import Message
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from .processors import run_processor
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@ -48,28 +48,13 @@ a:hover {{ color: #8AF; }}
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async def actor(request):
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config = app['config']
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database = app['database']
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data = {
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"@context": "https://www.w3.org/ns/activitystreams",
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"endpoints": {
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"sharedInbox": f"https://{request.host}/inbox"
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},
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"followers": f"https://{request.host}/followers",
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"following": f"https://{request.host}/following",
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"inbox": f"https://{request.host}/inbox",
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"name": "ActivityRelay",
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"type": "Application",
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"id": f"https://{request.host}/actor",
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"publicKey": {
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"id": f"https://{request.host}/actor#main-key",
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||||
"owner": f"https://{request.host}/actor",
|
||||
"publicKeyPem": database.pubkey
|
||||
},
|
||||
"summary": "ActivityRelay bot",
|
||||
"preferredUsername": "relay",
|
||||
"url": f"https://{request.host}/actor"
|
||||
}
|
||||
data = Message.new_actor(
|
||||
host = config.host,
|
||||
pubkey = database.pubkey
|
||||
)
|
||||
|
||||
return json_response(data, content_type='application/activity+json')
|
||||
|
||||
|
|
@ -85,9 +70,10 @@ async def inbox(request):
|
|||
|
||||
## read message and get actor id and domain
|
||||
try:
|
||||
data = await request.json()
|
||||
actor_id = data['actor']
|
||||
actor_domain = urlparse(actor_id).hostname
|
||||
data = await request.json(loads=Message.new_from_json)
|
||||
|
||||
if 'actor' not in data:
|
||||
raise KeyError('actor')
|
||||
|
||||
## reject if there is no actor in the message
|
||||
except KeyError:
|
||||
|
|
@ -99,44 +85,44 @@ async def inbox(request):
|
|||
logging.verbose('Failed to parse inbox message')
|
||||
raise HTTPUnauthorized(body='failed to parse message')
|
||||
|
||||
actor = await misc.request(actor_id)
|
||||
actor = await misc.request(data.actorid)
|
||||
|
||||
## reject if actor is empty
|
||||
if not actor:
|
||||
logging.verbose(f'Failed to fetch actor: {actor_id}')
|
||||
logging.verbose(f'Failed to fetch actor: {data.actorid}')
|
||||
raise HTTPUnauthorized('failed to fetch actor')
|
||||
|
||||
## reject if the actor isn't whitelisted while the whiltelist is enabled
|
||||
elif config.whitelist_enabled and not config.is_whitelisted(actor_id):
|
||||
logging.verbose(f'Rejected actor for not being in the whitelist: {actor_id}')
|
||||
elif config.whitelist_enabled and not config.is_whitelisted(data.domain):
|
||||
logging.verbose(f'Rejected actor for not being in the whitelist: {data.actorid}')
|
||||
raise HTTPForbidden(body='access denied')
|
||||
|
||||
## reject if actor is banned
|
||||
if app['config'].is_banned(actor_id):
|
||||
logging.verbose(f'Ignored request from banned actor: {actor_id}')
|
||||
if app['config'].is_banned(data.domain):
|
||||
logging.verbose(f'Ignored request from banned actor: {data.actorid}')
|
||||
raise HTTPForbidden(body='access denied')
|
||||
|
||||
## reject if software used by actor is banned
|
||||
if len(config.blocked_software):
|
||||
software = await misc.fetch_nodeinfo(actor_domain)
|
||||
software = await misc.fetch_nodeinfo(data.domain)
|
||||
|
||||
if config.is_banned_software(software):
|
||||
logging.verbose(f'Rejected actor for using specific software: {software}')
|
||||
raise HTTPForbidden(body='access denied')
|
||||
|
||||
## reject if the signature is invalid
|
||||
if not (await misc.validate_signature(actor_id, request)):
|
||||
logging.verbose(f'signature validation failed for: {actor_id}')
|
||||
if not (await misc.validate_signature(data.actorid, request)):
|
||||
logging.verbose(f'signature validation failed for: {data.actorid}')
|
||||
raise HTTPUnauthorized(body='signature check failed, signature did not match key')
|
||||
|
||||
## reject if activity type isn't 'Follow' and the actor isn't following
|
||||
if data['type'] != 'Follow' and not database.get_inbox(actor_domain):
|
||||
logging.verbose(f'Rejected actor for trying to post while not following: {actor_id}')
|
||||
if data['type'] != 'Follow' and not database.get_inbox(data.domain):
|
||||
logging.verbose(f'Rejected actor for trying to post while not following: {data.actorid}')
|
||||
raise HTTPUnauthorized(body='access denied')
|
||||
|
||||
logging.debug(f">> payload {data}")
|
||||
|
||||
await run_processor(request, data, actor)
|
||||
await run_processor(request, actor, data, software)
|
||||
return Response(body=b'{}', content_type='application/activity+json')
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue