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mattermost.py
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Wed, May 22, 15:43

mattermost.py
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#!/usr/bin/env python
# Copyright (c) 2015 NDrive SA
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
import argparse
import json
import urllib2
VERSION = "0.3.1"
def parse():
parser = argparse.ArgumentParser(description='Sends alerts to Mattermost')
parser.add_argument('--url', help='Incoming Webhook URL', required=True)
parser.add_argument('--channel', help='Channel to notify')
parser.add_argument('--username', help='Username to notify as',
default='Nagios')
parser.add_argument('--iconurl', help='URL of icon to use for username',
default='https://slack.global.ssl.fastly.net/7bf4/img/services/nagios_128.png') # noqa
parser.add_argument('--notificationtype', help='Notification Type',
required=True)
parser.add_argument('--hostalias', help='Host Alias', required=True)
parser.add_argument('--hostaddress', help='Host Address', required=True)
parser.add_argument('--hoststate', help='Host State')
parser.add_argument('--hostoutput', help='Host Output')
parser.add_argument('--servicedesc', help='Service Description')
parser.add_argument('--servicestate', help='Service State')
parser.add_argument('--serviceoutput', help='Service Output')
parser.add_argument('--cgiurl', help='Link to extinfo.cgi on your Nagios instance')
parser.add_argument('--version', action='version',
version='% (prog)s {version}'.format(version=VERSION))
args = parser.parse_args()
return args
def encode_special_characters(text):
text = text.replace("%", "%25")
text = text.replace("&", "%26")
return text
def emoji(notificationtype):
return {
"RECOVERY": ":white_check_mark: ",
"PROBLEM": ":fire: ",
"DOWNTIMESTART": ":clock10: ",
"DOWNTIMEEND": ":sunny: "
}.get(notificationtype, "")
def text(args):
template_host = "__{notificationtype}__ {hostalias} is {hoststate}\n{hostoutput}" # noqa
template_service = "__{notificationtype}__ {hostalias} at {hostaddress}/{servicedesc} is {servicestate}\n{serviceoutput}" # noqa
if args.hoststate is not None:
template_cgiurl = " [View :link:]({cgiurl}?type=1&host={hostalias})"
elif args.servicestate is not None:
template_cgiurl = " [View :link:]({cgiurl}?type=2&host={hostalias}&service={servicedesc})"
template = template_service if args.servicestate else template_host
text = emoji(args.notificationtype) + template.format(**vars(args))
if args.cgiurl is not None:
# If we know the CGI url provide a clickable link to the nagios CGI
text = text + template_cgiurl.format(**vars(args))
return encode_special_characters(text)
def payload(args):
payload = {
"username": args.username,
"icon_url": args.iconurl,
"text": text(args)
}
if args.channel:
payload["channel"] = args.channel
data = "payload=" + json.dumps(payload)
return data
def request(url, data):
req = urllib2.Request(url, data)
response = urllib2.urlopen(req)
return response.read()
if __name__ == "__main__":
args = parse()
response = request(args.url, payload(args))
print response

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