zulip/zerver/webhooks/pingdom/view.py

88 lines
2.5 KiB
Python

# Webhooks for external integrations.
from django.http import HttpRequest, HttpResponse
from zerver.decorator import webhook_view
from zerver.lib.exceptions import UnsupportedWebhookEventTypeError
from zerver.lib.request import REQ, has_request_variables
from zerver.lib.response import json_success
from zerver.lib.validator import WildValue, check_string, to_wild_value
from zerver.lib.webhooks.common import check_send_webhook_message
from zerver.models import UserProfile
PINGDOM_TOPIC_TEMPLATE = "{name} status."
MESSAGE_TEMPLATE = """
Service {service_url} changed its {type} status from {previous_state} to {current_state}:
""".strip()
DESC_TEMPLATE = """
``` quote
{description}
```
""".rstrip()
SUPPORTED_CHECK_TYPES = (
"HTTP",
"HTTP_CUSTOM",
"HTTPS",
"SMTP",
"POP3",
"IMAP",
"PING",
"DNS",
"UDP",
"PORT_TCP",
)
ALL_EVENT_TYPES = list(SUPPORTED_CHECK_TYPES)
@webhook_view("Pingdom", all_event_types=ALL_EVENT_TYPES)
@has_request_variables
def api_pingdom_webhook(
request: HttpRequest,
user_profile: UserProfile,
payload: WildValue = REQ(argument_type="body", converter=to_wild_value),
) -> HttpResponse:
check_type = get_check_type(payload)
if check_type in SUPPORTED_CHECK_TYPES:
topic = get_topic_for_http_request(payload)
body = get_body_for_http_request(payload)
else:
raise UnsupportedWebhookEventTypeError(check_type)
check_send_webhook_message(request, user_profile, topic, body, check_type)
return json_success(request)
def get_topic_for_http_request(payload: WildValue) -> str:
return PINGDOM_TOPIC_TEMPLATE.format(name=payload["check_name"].tame(check_string))
def get_body_for_http_request(payload: WildValue) -> str:
current_state = payload["current_state"].tame(check_string)
previous_state = payload["previous_state"].tame(check_string)
data = {
"service_url": payload["check_params"]["hostname"].tame(check_string),
"previous_state": previous_state,
"current_state": current_state,
"type": get_check_type(payload),
}
body = MESSAGE_TEMPLATE.format(**data)
if current_state == "DOWN" and previous_state == "UP":
description = DESC_TEMPLATE.format(
description=payload["long_description"].tame(check_string)
)
body += description
else:
body = f"{body[:-1]}."
return body
def get_check_type(payload: WildValue) -> str:
return payload["check_type"].tame(check_string)