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import base64, binascii, json, os, queue, threading, urllib.parse, uuid
from src import ModuleManager, utils
from . import ap_activities, ap_actor, ap_security, ap_utils
ACTIVITY_SETTING_PREFIX = "ap-activity-"
class Server(object):
def __init__(self, bot, exports, username, instance):
self.bot = bot
self.exports = exports
self.username = username
self.instance = instance
url_for = self.exports.get_one("url-for")
key_id = self._ap_keyid_url(url_for)
private_key = ap_security.PrivateKey(self.bot.config["tls-key"], key_id)
self_id = self._ap_self_url(url_for)
our_actor = ap_actor.Actor(self_id)
del url_for
self._request_queue = queue.Queue()
self._request_thread = threading.Thread(target=self._request_loop,
args=(private_key, our_actor))
self._request_thread.daemon = True
self._request_thread.start()
def _request_loop(self, private_key, our_actor):
while True:
obj = self._request_queue.get()
if obj == "kill":
break
else:
actor, activity = obj
actor.inbox.send(our_actor, activity, private_key)
def unload(self):
self._request_queue.put("kill")
def _random_id(self):
return binascii.hexlify(os.urandom(3)).decode("ascii")
def _get_activities(self):
activities = []
for setting, (content, timestamp) in self.bot.find_settings(
prefix=ACTIVITY_SETTING_PREFIX):
activity_id = setting.replace(ACTIVITY_SETTING_PREFIX, "", 1)
activities.append([activity_id, content, timestamp])
return activities
def _make_activity(self, content):
timestamp = utils.datetime.format.iso8601_now()
activity_id = self._random_id()
self.bot.set_setting("ap-activity-%s" % activity_id,
[content, timestamp])
return activity_id
def _toot(self, activity_id):
content, timestamp = self.bot.get_setting(
"ap-activity-%s" % activity_id)
url_for = self.exports.get_one("url-for")
self_id = self._ap_self_url(url_for)
activity_url = self._ap_activity_url(url_for, activity_id)
object = {
"id": activity_url,
"type": "Note",
"published": timestamp,
"attributedTo": self_id,
"content": content,
"to": "https://www.w3.org/ns/activitystreams#Public"
}
activity = ap_activities.Create(activity_url, object)
private_key = self._private_key()
for actor_url in self._get_actors():
actor = ap_actor.Actor(actor_url)
actor.load()
actor.inbox.send(activity, private_key)
def _ap_url(self, url_for, fragment, arg):
return "https://%s" % url_for("api", fragment, args=[arg])
def _ap_self_url(self, url_for):
return self._ap_url(url_for, "ap-user", self.username)
def _ap_inbox_url(self, url_for):
return self._ap_url(url_for, "ap-inbox", self.username)
def _ap_outbox_url(self, url_for):
return self._ap_url(url_for, "ap-outbox", self.username)
def _ap_activity_url(self, url_for, activity_id):
return self._ap_url(url_for, "ap-activity", activity_id)
def _ap_keyid_url(self, url_for):
return "%s#key" % self._ap_self_url(url_for)
def _ap_uuid_url(self, url_for):
return self._ap_url(url_for, "ap-id", str(uuid.uuid4()))
def ap_webfinger(self, event):
resource = event["params"].get("resource", None)
if resource.startswith("acct:"):
resource = resource.split(":", 1)[1]
if resource:
requested_username, requested_instance = ap_utils.split_username(
resource)
if (requested_username == self.username and
requested_instance == self.instance):
self_id = self._ap_self_url(event["url_for"])
event["response"].content_type = ap_utils.JRD_TYPE
event["response"].write_json({
"aliases": [self_id],
"links": [{
"href": self_id,
"rel": "self",
"type": ap_utils.ACTIVITY_TYPE
}],
"subject": "acct:%s" % resource
})
else:
event["response"].code = 404
else:
event["response"].code = 400
def _get_arg(self, args):
return (args or [None])[0]
def ap_user(self, event):
username = self._get_arg(event["args"])
if username and username == self.username:
self_id = self._ap_self_url(event["url_for"])
inbox = self._ap_inbox_url(event["url_for"])
outbox = self._ap_outbox_url(event["url_for"])
cert_filename = self.bot.config["tls-certificate"]
pubkey = ap_security.public_key(cert_filename)
event["response"].content_type = ap_utils.LD_TYPE
event["response"].write_json({
"@context": "https://www.w3.org/ns/activitystreams",
"id": self_id, "url": self_id,
"type": "Service",
"summary": "beep boop",
"preferredUsername": self.username, "name": self.username,
"inbox": inbox,
"outbox": outbox,
"publicKey": {
"id": "%s#key" % self_id,
"owner": self_id,
"publicKeyPem": pubkey
}
})
else:
event["response"].code = 404
def _prepare_activity(self, url_for, self_id, activity_id, content,
timestamp):
activity_url = self._ap_activity_url(url_for, activity_id)
context = "data:%s" % activity_id
return activity_url, {
"attributedTo": self_id,
"content": content,
"conversation": context, "context": context,
"id": activity_url, "url": activity_url,
"published": timestamp,
"summary": "", # content warning here
"to": "https://www.w3.org/ns/activitystreams#Public",
"type": "Note",
}
def ap_outbox(self, event):
username = self._get_arg(event["args"])
if username and username == self.username:
self_id = self._ap_self_url(event["url_for"])
outbox = self._ap_outbox_url(event["url_for"])
activities = []
for activity_id, content, timestamp in self._get_activities():
activity_url, activity_object = self._prepare_activity(
event["url_for"], self_id, activity_id, content, timestamp)
activities.append({
"actor": self_id,
"id": activity_url,
"object": activity_object,
"published": timestamp,
"to": "https://www.w3.org/ns/activitystreams#Public",
"type": "Create"
})
event["response"].content_type = ap_utils.LD_TYPE
event["response"].write_json({
"@context": "https://www.w3.org/ns/activitystreams",
"id": outbox,
"orderedItems": activities,
"totalItems": len(activities),
"type": "OrderedCollection"
})
else:
event["response"].code = 404
def _private_key(self, id):
filename = self.bot.config["tls-key"]
return ap_security.PrivateKey(filename, id)
def ap_inbox(self, event):
data = json.loads(event["data"])
self_id = self._ap_self_url(event["url_for"])
if data["type"] == "Follow":
if data["object"] == self_id:
new_follower = data["actor"]
followers = set(self.bot.get_setting("fediverse-followers", []))
if not new_follower in followers:
followers.add(new_follower)
actor = ap_actor.Actor(new_follower)
actor.load()
accept = ap_activities.Accept(
self._ap_uuid_url(event["url_for"]), data)
self._request_queue.put([actor, accept])
follow = ap_activities.Follow(
self._ap_uuid_url(event["url_for"]), actor.url)
self._request_queue.put([actor, follow])
else:
event["response"].code = 404
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