zulip/zerver/webhooks/updown/view.py

81 lines
3.1 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.decorator import api_key_only_webhook_view
from zerver.lib.exceptions import JsonableError
from zerver.lib.request import REQ, has_request_variables
from zerver.lib.response import json_error, json_success
from zerver.lib.webhooks.common import check_send_webhook_message
from zerver.models import Client, UserProfile
SUBJECT_TEMPLATE = "{service_url}"
def send_message_for_event(request: HttpRequest, user_profile: UserProfile,
event: Dict[str, Any]) -> 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_webhook_message(request, user_profile, subject, body)
def get_body_for_up_event(event: 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: 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: int, text_name: 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: 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: HttpRequest, user_profile: UserProfile,
payload: List[Dict[str, Any]]=REQ(argument_type='body')
) -> HttpResponse:
for event in payload:
send_message_for_event(request, user_profile, event)
return json_success()
EVENT_TYPE_BODY_MAPPER = {
'up': get_body_for_up_event,
'down': get_body_for_down_event
}
def get_event_type(event: 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'],))