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bazarr/libs/apprise/plugins/NotifyMailgun.py
2019-06-07 07:16:07 -04:00

391 lines
13 KiB
Python

# -*- coding: utf-8 -*-
#
# Copyright (C) 2019 Chris Caron <lead2gold@gmail.com>
# All rights reserved.
#
# This code is licensed under the MIT License.
#
# 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.
# Signup @ https://www.mailgun.com/
#
# Each domain will have an API key associated with it. If you sign up you'll
# get a sandbox domain to use. Or if you set up your own, they'll have
# api keys associated with them too. Find your API key out by visiting
# https://app.mailgun.com/app/domains
#
# From here you can click on the domain you're interested in. You can acquire
# the API Key from here which will look something like:
# 4b4f2918c6c21ba0a26ad2af73c07f4d-dk5f51da-8f91a0df
#
# You'll also need to know the domain that is associated with your API key.
# This will be obvious with a paid account because it will be the domain name
# you've registered with them. But if you're using a test account, it will
# be name of the sandbox you've set up such as:
# sandbox74bda3414c06kb5acb946.mailgun.org
#
# Knowing this, you can buid your mailgun url as follows:
# mailgun://{user}@{domain}/{apikey}
# mailgun://{user}@{domain}/{apikey}/{email}
#
# You can email as many addresses as you want as:
# mailgun://{user}@{domain}/{apikey}/{email1}/{email2}/{emailN}
#
# The {user}@{domain} effectively assembles the 'from' email address
# the email will be transmitted from. If no email address is specified
# then it will also become the 'to' address as well.
#
import re
import requests
from .NotifyBase import NotifyBase
from ..common import NotifyType
from ..utils import parse_list
from ..utils import is_email
from ..AppriseLocale import gettext_lazy as _
# Used to validate your personal access apikey
VALIDATE_API_KEY = re.compile(r'^[a-z0-9]{32}-[a-z0-9]{8}-[a-z0-9]{8}$', re.I)
# Provide some known codes Mailgun uses and what they translate to:
# Based on https://documentation.mailgun.com/en/latest/api-intro.html#errors
MAILGUN_HTTP_ERROR_MAP = {
400: 'A bad request was made to the server.',
401: 'The provided API Key was not valid.',
402: 'The request failed for a reason out of your control.',
404: 'The requested API query is not valid.',
413: 'Provided attachment is to big.',
}
# Priorities
class MailgunRegion(object):
US = 'us'
EU = 'eu'
# Mailgun APIs
MAILGUN_API_LOOKUP = {
MailgunRegion.US: 'https://api.mailgun.net/v3/',
MailgunRegion.EU: 'https://api.eu.mailgun.net/v3/',
}
# A List of our regions we can use for verification
MAILGUN_REGIONS = (
MailgunRegion.US,
MailgunRegion.EU,
)
class NotifyMailgun(NotifyBase):
"""
A wrapper for Mailgun Notifications
"""
# The default descriptive name associated with the Notification
service_name = 'Mailgun'
# The services URL
service_url = 'https://www.mailgun.com/'
# All pushover requests are secure
secure_protocol = 'mailgun'
# Mailgun advertises they allow 300 requests per minute.
# 60/300 = 0.2
request_rate_per_sec = 0.20
# A URL that takes you to the setup/help of the specific protocol
setup_url = 'https://github.com/caronc/apprise/wiki/Notify_mailgun'
# The default region to use if one isn't otherwise specified
mailgun_default_region = MailgunRegion.US
# Define object templates
templates = (
'{schema}://{user}@{host}:{apikey}/',
'{schema}://{user}@{host}:{apikey}/{targets}',
)
# Define our template tokens
template_tokens = dict(NotifyBase.template_tokens, **{
'user': {
'name': _('User Name'),
'type': 'string',
'required': True,
},
'host': {
'name': _('Domain'),
'type': 'string',
'required': True,
},
'apikey': {
'name': _('API Key'),
'type': 'string',
'regex': (r'[a-z0-9]{32}-[a-z0-9]{8}-[a-z0-9]{8}', 'i'),
'private': True,
'required': True,
},
'targets': {
'name': _('Target Emails'),
'type': 'list:string',
},
})
# Define our template arguments
template_args = dict(NotifyBase.template_args, **{
'name': {
'name': _('From Name'),
'type': 'string',
'map_to': 'from_name',
},
'region': {
'name': _('Region Name'),
'type': 'choice:string',
'values': MAILGUN_REGIONS,
'default': MailgunRegion.US,
'map_to': 'region_name',
},
'to': {
'alias_of': 'targets',
},
})
def __init__(self, apikey, targets, from_name=None, region_name=None,
**kwargs):
"""
Initialize Mailgun Object
"""
super(NotifyMailgun, self).__init__(**kwargs)
try:
# The personal access apikey associated with the account
self.apikey = apikey.strip()
except AttributeError:
# Token was None
msg = 'No API Key was specified.'
self.logger.warning(msg)
raise TypeError(msg)
if not VALIDATE_API_KEY.match(self.apikey):
msg = 'The API Key specified ({}) is invalid.' \
.format(apikey)
self.logger.warning(msg)
raise TypeError(msg)
# Validate our username
if not self.user:
msg = 'No username was specified.'
self.logger.warning(msg)
raise TypeError(msg)
# Parse our targets
self.targets = parse_list(targets)
# Store our region
try:
self.region_name = self.mailgun_default_region \
if region_name is None else region_name.lower()
if self.region_name not in MAILGUN_REGIONS:
# allow the outer except to handle this common response
raise
except:
# Invalid region specified
msg = 'The region specified ({}) is invalid.' \
.format(region_name)
self.logger.warning(msg)
raise TypeError(msg)
# Get our From username (if specified)
self.from_name = from_name
# Get our from email address
self.from_addr = '{user}@{host}'.format(user=self.user, host=self.host)
if not is_email(self.from_addr):
# Parse Source domain based on from_addr
msg = 'Invalid ~From~ email format: {}'.format(self.from_addr)
self.logger.warning(msg)
raise TypeError(msg)
def send(self, body, title='', notify_type=NotifyType.INFO, **kwargs):
"""
Perform Mailgun Notification
"""
# error tracking (used for function return)
has_error = False
# Prepare our headers
headers = {
'User-Agent': self.app_id,
'Accept': 'application/json',
}
# Prepare our payload
payload = {
'from': '{name} <{addr}>'.format(
name=self.app_id if not self.from_name else self.from_name,
addr=self.from_addr),
'subject': title,
'text': body,
}
# Prepare our URL as it's based on our hostname
url = '{}{}/messages'.format(
MAILGUN_API_LOOKUP[self.region_name], self.host)
# Create a copy of the targets list
emails = list(self.targets)
if len(emails) == 0:
# No email specified; use the from
emails.append(self.from_addr)
while len(emails):
# Get our email to notify
email = emails.pop(0)
# Prepare our user
payload['to'] = '{} <{}>'.format(email, email)
# Some Debug Logging
self.logger.debug('Mailgun POST URL: {} (cert_verify={})'.format(
url, self.verify_certificate))
self.logger.debug('Mailgun Payload: {}' .format(payload))
# Always call throttle before any remote server i/o is made
self.throttle()
try:
r = requests.post(
url,
auth=("api", self.apikey),
data=payload,
headers=headers,
verify=self.verify_certificate,
)
if r.status_code != requests.codes.ok:
# We had a problem
status_str = \
NotifyBase.http_response_code_lookup(
r.status_code, MAILGUN_API_LOOKUP)
self.logger.warning(
'Failed to send Mailgun notification to {}: '
'{}{}error={}.'.format(
email,
status_str,
', ' if status_str else '',
r.status_code))
self.logger.debug(
'Response Details:\r\n{}'.format(r.content))
# Mark our failure
has_error = True
continue
else:
self.logger.info(
'Sent Mailgun notification to {}.'.format(email))
except requests.RequestException as e:
self.logger.warning(
'A Connection error occured sending Mailgun:%s ' % (
email) + 'notification.'
)
self.logger.debug('Socket Exception: %s' % str(e))
# Mark our failure
has_error = True
continue
return not has_error
def url(self):
"""
Returns the URL built dynamically based on specified arguments.
"""
# Define any arguments set
args = {
'format': self.notify_format,
'overflow': self.overflow_mode,
'verify': 'yes' if self.verify_certificate else 'no',
'region': self.region_name,
}
if self.from_name is not None:
# from_name specified; pass it back on the url
args['name'] = self.from_name
return '{schema}://{user}@{host}/{apikey}/{targets}/?{args}'.format(
schema=self.secure_protocol,
host=self.host,
user=NotifyMailgun.quote(self.user, safe=''),
apikey=NotifyMailgun.quote(self.apikey, safe=''),
targets='/'.join(
[NotifyMailgun.quote(x, safe='') for x in self.targets]),
args=NotifyMailgun.urlencode(args))
@staticmethod
def parse_url(url):
"""
Parses the URL and returns enough arguments that can allow
us to substantiate this object.
"""
results = NotifyBase.parse_url(url)
if not results:
# We're done early as we couldn't load the results
return results
# Get our entries; split_path() looks after unquoting content for us
# by default
results['targets'] = NotifyMailgun.split_path(results['fullpath'])
# Our very first entry is reserved for our api key
try:
results['apikey'] = results['targets'].pop(0)
except IndexError:
# We're done - no API Key found
results['apikey'] = None
if 'name' in results['qsd'] and len(results['qsd']['name']):
# Extract from name to associate with from address
results['from_name'] = \
NotifyMailgun.unquote(results['qsd']['name'])
if 'region' in results['qsd'] and len(results['qsd']['region']):
# Extract from name to associate with from address
results['region_name'] = \
NotifyMailgun.unquote(results['qsd']['region'])
# Support the 'to' variable so that we can support targets this way too
# The 'to' makes it easier to use yaml configuration
if 'to' in results['qsd'] and len(results['qsd']['to']):
results['targets'] += \
NotifyMailgun.parse_list(results['qsd']['to'])
return results