python-dockercloud/dockercloud/api/events.py

51 lines
1.8 KiB
Python

from __future__ import absolute_import
import json
import logging
import websocket
import dockercloud
from .base import StreamingAPI
from .exceptions import AuthError
logger = logging.getLogger("python-dockercloud")
class Events(StreamingAPI):
def __init__(self):
endpoint = "events"
url = "/".join([dockercloud.stream_host.rstrip("/"), "api", "audit", self._api_version, endpoint.lstrip("/")])
self.invaid_auth_headers = set()
self.auth_error = ""
super(self.__class__, self).__init__(url)
def _on_message(self, ws, message):
logger.info("Websocket Message: %s" % message)
try:
event = json.loads(message)
except ValueError:
return
if event.get("type") == "auth":
return
if self.message_handler:
self.message_handler(message)
def _on_error(self, ws, e):
if isinstance(e, websocket._exceptions.WebSocketBadStatusException) and getattr(e, "status_code") == 401:
self.auth_error = "Not Authorized"
self.invaid_auth_headers.add(str(dockercloud.auth.get_auth_header()))
super(self.__class__, self)._on_error(ws, e)
def run_forever(self, *args, **kwargs):
while True:
if str(dockercloud.auth.get_auth_header()) in self.invaid_auth_headers:
raise AuthError(self.auth_error)
ws = websocket.WebSocketApp(self.url, header=self.header,
on_open=self._on_open,
on_message=self._on_message,
on_error=self._on_error,
on_close=self._on_close)
ws.run_forever(ping_interval=10, ping_timeout=5, *args, **kwargs)