Files
awx/awx/main/consumers.py

76 lines
2.8 KiB
Python

import json
import logging
from channels import Group
from channels.sessions import channel_session
from channels.auth import channel_session_user, http_session_user, transfer_user
from django.core.serializers.json import DjangoJSONEncoder
logger = logging.getLogger('awx.main.consumers')
def discard_groups(message):
if 'groups' in message.channel_session:
for group in message.channel_session['groups']:
Group(group).discard(message.reply_channel)
@http_session_user
@channel_session
def ws_connect(message):
if message.http_session:
# our backend is not set on the http_session so we need to update the session before
# calling transfer_user. This is why we are doing this manually instead of using the
# all-in-one helper decorator.
message.http_session.update({'_auth_user_backend':'django.contrib.auth.backends.ModelBackend'})
transfer_user(message.http_session, message.channel_session)
message.reply_channel.send({"text": json.dumps({"accept": True, "user": message.user.id})})
else:
message.reply_channel.send({"text": json.dumps({"accept": False, "user": None})})
@channel_session_user
def ws_disconnect(message):
discard_groups(message)
@channel_session_user
def ws_receive(message):
from awx.main.access import consumer_access
user = message.user
if user.id is None:
logger.error("No valid user found for websocket.")
message.reply_channel.send({"text": json.dumps({"error": "no valid user"})})
return None
raw_data = message.content['text']
data = json.loads(raw_data)
if 'groups' in data:
discard_groups(message)
groups = data['groups']
current_groups = message.channel_session.pop('groups') if 'groups' in message.channel_session else []
for group_name,v in groups.items():
if type(v) is list:
for oid in v:
name = '{}-{}'.format(group_name, oid)
access_cls = consumer_access(group_name)
if access_cls is not None:
user_access = access_cls(user)
if not user_access.get_queryset().filter(pk=oid).exists():
message.reply_channel.send({"text": json.dumps({"error": "access denied to channel {0} for resource id {1}".format(group_name, oid)})})
continue
current_groups.append(name)
Group(name).add(message.reply_channel)
else:
current_groups.append(group_name)
Group(group_name).add(message.reply_channel)
message.channel_session['groups'] = current_groups
def emit_channel_notification(group, payload):
Group(group).send({"text": json.dumps(payload, cls=DjangoJSONEncoder)})