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e6502710b6
The 'message' attribute in Exception has been deprecated. It has been removed in python 3.
95 lines
3.5 KiB
Python
95 lines
3.5 KiB
Python
# Webhooks for external integrations.
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from __future__ import absolute_import
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import re
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from datetime import datetime
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from typing import Any, Dict
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from django.http import HttpRequest, HttpResponse
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from django.utils.translation import ugettext as _
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from zerver.lib.actions import check_send_message
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from zerver.lib.response import json_success, json_error
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from zerver.lib.request import JsonableError
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from zerver.decorator import REQ, has_request_variables, api_key_only_webhook_view
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from zerver.models import UserProfile, Client
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SUBJECT_TEMPLATE = "{service_url}"
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class UnsupportedUpdownEventType(JsonableError):
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pass
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def send_message_for_event(event, user_profile, client, stream):
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# type: (Dict[str, Any], UserProfile, Client, str) -> None
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try:
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event_type = get_event_type(event)
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subject = SUBJECT_TEMPLATE.format(service_url=event['check']['url'])
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body = EVENT_TYPE_BODY_MAPPER[event_type](event)
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except KeyError as e:
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return json_error(_("Missing key {} in JSON").format(str(e)))
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check_send_message(user_profile, client, 'stream', [stream], subject, body)
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def get_body_for_up_event(event):
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# type: (Dict[str, Any]) -> str
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body = "Service is `up`"
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event_downtime = event['downtime']
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if event_downtime['started_at']:
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body = "{} again".format(body)
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string_date = get_time_string_based_on_duration(event_downtime['duration'])
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if string_date:
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body = "{} after {}".format(body, string_date)
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return "{}.".format(body)
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def get_time_string_based_on_duration(duration):
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# type: (int) -> str
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days, reminder = divmod(duration, 86400)
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hours, reminder = divmod(reminder, 3600)
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minutes, seconds = divmod(reminder, 60)
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string_date = ''
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string_date += add_time_part_to_string_date_if_needed(days, 'day')
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string_date += add_time_part_to_string_date_if_needed(hours, 'hour')
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string_date += add_time_part_to_string_date_if_needed(minutes, 'minute')
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string_date += add_time_part_to_string_date_if_needed(seconds, 'second')
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return string_date.rstrip()
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def add_time_part_to_string_date_if_needed(value, text_name):
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# type: (int, str) -> str
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if value == 1:
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return "1 {} ".format(text_name)
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if value > 1:
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return "{} {}s ".format(value, text_name)
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return ''
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def get_body_for_down_event(event):
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# type: (Dict[str, Any]) -> str
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event_downtime = event['downtime']
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started_at = datetime.strptime(event_downtime['started_at'], "%Y-%m-%dT%H:%M:%SZ")
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return "Service is `down`. It returned \"{}\" error at {}.".format(
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event_downtime['error'],
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started_at.strftime("%d-%m-%Y %H:%M")
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)
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@api_key_only_webhook_view('Updown')
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@has_request_variables
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def api_updown_webhook(request, user_profile, client,
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payload=REQ(argument_type='body'),
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stream=REQ(default='updown')):
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# type: (HttpRequest, UserProfile, Client, List[Dict[str, Any]], str) -> HttpResponse
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for event in payload:
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send_message_for_event(event, user_profile, client, stream)
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return json_success()
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EVENT_TYPE_BODY_MAPPER = {
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'up': get_body_for_up_event,
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'down': get_body_for_down_event
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}
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def get_event_type(event):
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# type: (Dict[str, Any]) -> str
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event_type_match = re.match('check.(.*)', event['event'])
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if event_type_match:
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event_type = event_type_match.group(1)
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if event_type in EVENT_TYPE_BODY_MAPPER:
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return event_type
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raise UnsupportedUpdownEventType(event['event'])
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