zulip/zerver/webhooks/updown/view.py

84 lines
3.2 KiB
Python

# Webhooks for external integrations.
import re
from datetime import datetime
from typing import Any, Dict, List
from django.http import HttpRequest, HttpResponse
from django.utils.translation import ugettext as _
from zerver.lib.actions import check_send_message
from zerver.lib.exceptions import JsonableError
from zerver.lib.response import json_success, json_error
from zerver.decorator import REQ, has_request_variables, api_key_only_webhook_view
from zerver.models import UserProfile, Client
SUBJECT_TEMPLATE = "{service_url}"
def send_message_for_event(event, user_profile, client, stream):
# type: (Dict[str, Any], UserProfile, Client, str) -> None
event_type = get_event_type(event)
subject = SUBJECT_TEMPLATE.format(service_url=event['check']['url'])
body = EVENT_TYPE_BODY_MAPPER[event_type](event)
check_send_message(user_profile, client, 'stream', [stream], subject, body)
def get_body_for_up_event(event):
# type: (Dict[str, Any]) -> str
body = "Service is `up`"
event_downtime = event['downtime']
if event_downtime['started_at']:
body = "{} again".format(body)
string_date = get_time_string_based_on_duration(event_downtime['duration'])
if string_date:
body = "{} after {}".format(body, string_date)
return "{}.".format(body)
def get_time_string_based_on_duration(duration):
# type: (int) -> str
days, reminder = divmod(duration, 86400)
hours, reminder = divmod(reminder, 3600)
minutes, seconds = divmod(reminder, 60)
string_date = ''
string_date += add_time_part_to_string_date_if_needed(days, 'day')
string_date += add_time_part_to_string_date_if_needed(hours, 'hour')
string_date += add_time_part_to_string_date_if_needed(minutes, 'minute')
string_date += add_time_part_to_string_date_if_needed(seconds, 'second')
return string_date.rstrip()
def add_time_part_to_string_date_if_needed(value, text_name):
# type: (int, str) -> str
if value == 1:
return "1 {} ".format(text_name)
if value > 1:
return "{} {}s ".format(value, text_name)
return ''
def get_body_for_down_event(event):
# type: (Dict[str, Any]) -> str
return "Service is `down`. It returned a {} error at {}.".format(
event['downtime']['error'],
event['downtime']['started_at'].replace('T', ' ').replace('Z', ' UTC'))
@api_key_only_webhook_view('Updown')
@has_request_variables
def api_updown_webhook(request, user_profile,
payload=REQ(argument_type='body'),
stream=REQ(default='updown')):
# type: (HttpRequest, UserProfile, List[Dict[str, Any]], str) -> HttpResponse
for event in payload:
send_message_for_event(event, user_profile, request.client, stream)
return json_success()
EVENT_TYPE_BODY_MAPPER = {
'up': get_body_for_up_event,
'down': get_body_for_down_event
}
def get_event_type(event):
# type: (Dict[str, Any]) -> str
event_type_match = re.match('check.(.*)', event['event'])
if event_type_match:
event_type = event_type_match.group(1)
if event_type in EVENT_TYPE_BODY_MAPPER:
return event_type
raise JsonableError(_('Unsupported Updown event type: %s') % (event['event'],))