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392 lines
13 KiB
392 lines
13 KiB
# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2019 Chris Caron <lead2gold@gmail.com>
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# All rights reserved.
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#
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# This code is licensed under the MIT License.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files(the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions :
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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# Signup @ https://www.mailgun.com/
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#
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# Each domain will have an API key associated with it. If you sign up you'll
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# get a sandbox domain to use. Or if you set up your own, they'll have
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# api keys associated with them too. Find your API key out by visiting
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# https://app.mailgun.com/app/domains
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#
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# From here you can click on the domain you're interested in. You can acquire
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# the API Key from here which will look something like:
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# 4b4f2918c6c21ba0a26ad2af73c07f4d-dk5f51da-8f91a0df
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#
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# You'll also need to know the domain that is associated with your API key.
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# This will be obvious with a paid account because it will be the domain name
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# you've registered with them. But if you're using a test account, it will
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# be name of the sandbox you've set up such as:
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# sandbox74bda3414c06kb5acb946.mailgun.org
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#
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# Knowing this, you can buid your mailgun url as follows:
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# mailgun://{user}@{domain}/{apikey}
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# mailgun://{user}@{domain}/{apikey}/{email}
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#
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# You can email as many addresses as you want as:
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# mailgun://{user}@{domain}/{apikey}/{email1}/{email2}/{emailN}
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#
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# The {user}@{domain} effectively assembles the 'from' email address
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# the email will be transmitted from. If no email address is specified
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# then it will also become the 'to' address as well.
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#
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import re
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import requests
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from .NotifyBase import NotifyBase
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from ..common import NotifyType
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from ..utils import parse_list
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from ..utils import is_email
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from ..AppriseLocale import gettext_lazy as _
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# Used to validate your personal access apikey
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VALIDATE_API_KEY = re.compile(r'^[a-z0-9]{32}-[a-z0-9]{8}-[a-z0-9]{8}$', re.I)
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# Provide some known codes Mailgun uses and what they translate to:
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# Based on https://documentation.mailgun.com/en/latest/api-intro.html#errors
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MAILGUN_HTTP_ERROR_MAP = {
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400: 'A bad request was made to the server.',
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401: 'The provided API Key was not valid.',
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402: 'The request failed for a reason out of your control.',
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404: 'The requested API query is not valid.',
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413: 'Provided attachment is to big.',
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}
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# Priorities
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class MailgunRegion(object):
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US = 'us'
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EU = 'eu'
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# Mailgun APIs
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MAILGUN_API_LOOKUP = {
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MailgunRegion.US: 'https://api.mailgun.net/v3/',
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MailgunRegion.EU: 'https://api.eu.mailgun.net/v3/',
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}
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# A List of our regions we can use for verification
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MAILGUN_REGIONS = (
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MailgunRegion.US,
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MailgunRegion.EU,
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)
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class NotifyMailgun(NotifyBase):
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"""
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A wrapper for Mailgun Notifications
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"""
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# The default descriptive name associated with the Notification
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service_name = 'Mailgun'
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# The services URL
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service_url = 'https://www.mailgun.com/'
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# All pushover requests are secure
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secure_protocol = 'mailgun'
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# Mailgun advertises they allow 300 requests per minute.
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# 60/300 = 0.2
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request_rate_per_sec = 0.20
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# A URL that takes you to the setup/help of the specific protocol
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setup_url = 'https://github.com/caronc/apprise/wiki/Notify_mailgun'
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# The default region to use if one isn't otherwise specified
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mailgun_default_region = MailgunRegion.US
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# Define object templates
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templates = (
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'{schema}://{user}@{host}:{apikey}/',
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'{schema}://{user}@{host}:{apikey}/{targets}',
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)
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# Define our template tokens
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template_tokens = dict(NotifyBase.template_tokens, **{
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'user': {
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'name': _('User Name'),
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'type': 'string',
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'required': True,
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},
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'host': {
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'name': _('Domain'),
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'type': 'string',
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'required': True,
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},
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'apikey': {
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'name': _('API Key'),
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'type': 'string',
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'regex': (r'[a-z0-9]{32}-[a-z0-9]{8}-[a-z0-9]{8}', 'i'),
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'private': True,
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'required': True,
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},
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'targets': {
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'name': _('Target Emails'),
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'type': 'list:string',
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},
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})
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# Define our template arguments
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template_args = dict(NotifyBase.template_args, **{
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'name': {
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'name': _('From Name'),
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'type': 'string',
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'map_to': 'from_name',
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},
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'region': {
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'name': _('Region Name'),
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'type': 'choice:string',
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'values': MAILGUN_REGIONS,
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'default': MailgunRegion.US,
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'map_to': 'region_name',
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},
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'to': {
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'alias_of': 'targets',
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},
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})
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def __init__(self, apikey, targets, from_name=None, region_name=None,
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**kwargs):
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"""
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Initialize Mailgun Object
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"""
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super(NotifyMailgun, self).__init__(**kwargs)
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try:
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# The personal access apikey associated with the account
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self.apikey = apikey.strip()
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except AttributeError:
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# Token was None
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msg = 'No API Key was specified.'
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self.logger.warning(msg)
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raise TypeError(msg)
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if not VALIDATE_API_KEY.match(self.apikey):
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msg = 'The API Key specified ({}) is invalid.' \
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.format(apikey)
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self.logger.warning(msg)
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raise TypeError(msg)
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# Validate our username
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if not self.user:
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msg = 'No username was specified.'
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self.logger.warning(msg)
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raise TypeError(msg)
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# Parse our targets
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self.targets = parse_list(targets)
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# Store our region
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try:
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self.region_name = self.mailgun_default_region \
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if region_name is None else region_name.lower()
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if self.region_name not in MAILGUN_REGIONS:
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# allow the outer except to handle this common response
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raise
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except:
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# Invalid region specified
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msg = 'The region specified ({}) is invalid.' \
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.format(region_name)
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self.logger.warning(msg)
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raise TypeError(msg)
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# Get our From username (if specified)
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self.from_name = from_name
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# Get our from email address
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self.from_addr = '{user}@{host}'.format(user=self.user, host=self.host)
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if not is_email(self.from_addr):
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# Parse Source domain based on from_addr
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msg = 'Invalid ~From~ email format: {}'.format(self.from_addr)
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self.logger.warning(msg)
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raise TypeError(msg)
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def send(self, body, title='', notify_type=NotifyType.INFO, **kwargs):
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"""
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Perform Mailgun Notification
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"""
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# error tracking (used for function return)
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has_error = False
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# Prepare our headers
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headers = {
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'User-Agent': self.app_id,
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'Accept': 'application/json',
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}
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# Prepare our payload
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payload = {
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'from': '{name} <{addr}>'.format(
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name=self.app_id if not self.from_name else self.from_name,
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addr=self.from_addr),
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'subject': title,
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'text': body,
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}
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# Prepare our URL as it's based on our hostname
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url = '{}{}/messages'.format(
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MAILGUN_API_LOOKUP[self.region_name], self.host)
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# Create a copy of the targets list
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emails = list(self.targets)
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if len(emails) == 0:
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# No email specified; use the from
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emails.append(self.from_addr)
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while len(emails):
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# Get our email to notify
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email = emails.pop(0)
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# Prepare our user
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payload['to'] = '{} <{}>'.format(email, email)
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# Some Debug Logging
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self.logger.debug('Mailgun POST URL: {} (cert_verify={})'.format(
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url, self.verify_certificate))
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self.logger.debug('Mailgun Payload: {}' .format(payload))
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# Always call throttle before any remote server i/o is made
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self.throttle()
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try:
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r = requests.post(
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url,
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auth=("api", self.apikey),
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data=payload,
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headers=headers,
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verify=self.verify_certificate,
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)
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if r.status_code != requests.codes.ok:
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# We had a problem
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status_str = \
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NotifyBase.http_response_code_lookup(
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r.status_code, MAILGUN_API_LOOKUP)
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self.logger.warning(
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'Failed to send Mailgun notification to {}: '
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'{}{}error={}.'.format(
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email,
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status_str,
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', ' if status_str else '',
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r.status_code))
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self.logger.debug(
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'Response Details:\r\n{}'.format(r.content))
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# Mark our failure
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has_error = True
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continue
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else:
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self.logger.info(
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'Sent Mailgun notification to {}.'.format(email))
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except requests.RequestException as e:
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self.logger.warning(
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'A Connection error occured sending Mailgun:%s ' % (
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email) + 'notification.'
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)
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self.logger.debug('Socket Exception: %s' % str(e))
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# Mark our failure
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has_error = True
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continue
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return not has_error
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def url(self):
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"""
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Returns the URL built dynamically based on specified arguments.
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"""
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# Define any arguments set
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args = {
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'format': self.notify_format,
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'overflow': self.overflow_mode,
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'verify': 'yes' if self.verify_certificate else 'no',
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'region': self.region_name,
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}
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if self.from_name is not None:
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# from_name specified; pass it back on the url
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args['name'] = self.from_name
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return '{schema}://{user}@{host}/{apikey}/{targets}/?{args}'.format(
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schema=self.secure_protocol,
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host=self.host,
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user=NotifyMailgun.quote(self.user, safe=''),
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apikey=NotifyMailgun.quote(self.apikey, safe=''),
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targets='/'.join(
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[NotifyMailgun.quote(x, safe='') for x in self.targets]),
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args=NotifyMailgun.urlencode(args))
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@staticmethod
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def parse_url(url):
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"""
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Parses the URL and returns enough arguments that can allow
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us to substantiate this object.
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"""
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results = NotifyBase.parse_url(url)
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if not results:
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# We're done early as we couldn't load the results
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return results
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# Get our entries; split_path() looks after unquoting content for us
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# by default
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results['targets'] = NotifyMailgun.split_path(results['fullpath'])
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# Our very first entry is reserved for our api key
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try:
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results['apikey'] = results['targets'].pop(0)
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except IndexError:
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# We're done - no API Key found
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results['apikey'] = None
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if 'name' in results['qsd'] and len(results['qsd']['name']):
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# Extract from name to associate with from address
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results['from_name'] = \
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NotifyMailgun.unquote(results['qsd']['name'])
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if 'region' in results['qsd'] and len(results['qsd']['region']):
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# Extract from name to associate with from address
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results['region_name'] = \
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NotifyMailgun.unquote(results['qsd']['region'])
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# Support the 'to' variable so that we can support targets this way too
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# The 'to' makes it easier to use yaml configuration
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if 'to' in results['qsd'] and len(results['qsd']['to']):
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results['targets'] += \
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NotifyMailgun.parse_list(results['qsd']['to'])
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return results
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