124 lines
4.5 KiB
Python
124 lines
4.5 KiB
Python
# (C) Copyright 2016 Hewlett Packard Enterprise Development LP
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import json
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import requests
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from monasca_notification.plugins import abstract_notifier
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from six.moves import urllib
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"""
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notification.address = https://slack.com/api/chat.postMessage?token=token&channel=#channel"
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Slack documentation about tokens:
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1. Login to your slack account via browser and check the following pages
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a. https://api.slack.com/docs/oauth-test-tokens
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b. https://api.slack.com/tokens
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"""
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class SlackNotifier(abstract_notifier.AbstractNotifier):
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def __init__(self, log):
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self._log = log
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def config(self, config_dict):
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self._config = {'timeout': 5}
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self._config.update(config_dict)
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@property
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def type(self):
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return "slack"
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@property
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def statsd_name(self):
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return 'sent_slack_count'
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def _build_slack_message(self, notification):
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"""Builds slack message body
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"""
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body = {'alarm_id': notification.alarm_id,
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'alarm_definition_id': notification.raw_alarm['alarmDefinitionId'],
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'alarm_name': notification.alarm_name,
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'alarm_description': notification.raw_alarm['alarmDescription'],
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'alarm_timestamp': notification.alarm_timestamp,
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'state': notification.state,
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'old_state': notification.raw_alarm['oldState'],
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'message': notification.message,
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'tenant_id': notification.tenant_id,
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'metrics': notification.metrics}
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slack_request = {}
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slack_request['text'] = json.dumps(body, indent=3)
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return slack_request
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def send_notification(self, notification):
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"""Send the notification via slack
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Posts on the given url
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"""
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slack_message = self._build_slack_message(notification)
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address = notification.address
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# "#" is reserved character and replace it with ascii equivalent
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# Slack room has "#" as first character
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address = address.replace("#", "%23")
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parsed_url = urllib.parse.urlsplit(address)
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query_params = urllib.parse.parse_qs(parsed_url.query)
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# URL without query params
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url = urllib.parse.urljoin(address, urllib.parse.urlparse(address).path)
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# Default option is to do cert verification
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verify = self._config.get('insecure', False)
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# If ca_certs is specified, do cert validation and ignore insecure flag
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if (self._config.get("ca_certs")):
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verify = self._config.get("ca_certs")
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proxyDict = None
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if (self._config.get("proxy")):
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proxyDict = {"https": self._config.get("proxy")}
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try:
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# Posting on the given URL
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self._log.debug("Sending to the url {0} , with query_params {1}".format(url, query_params))
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result = requests.post(url=url,
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json=slack_message,
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verify=verify,
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params=query_params,
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proxies=proxyDict,
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timeout=self._config['timeout'])
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if result.status_code not in range(200, 300):
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self._log.error("Received an HTTP code {} when trying to post on URL {}."
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.format(result.status_code, url))
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return False
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# Slack returns 200 ok even if the token is invalid. Response has valid error message
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response = json.loads(result.text)
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if response.get('ok'):
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self._log.info("Notification successfully posted.")
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return True
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else:
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self._log.error("Received an error message {} when trying to send to slack on URL {}."
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.format(response.get("error"), url))
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return False
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except Exception:
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self._log.exception("Error trying to send to slack on URL {}".format(url))
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return False
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