bazarr/libs/apprise/plugins/NotifyBoxcar.py

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# -*- coding: utf-8 -*-
#
# Boxcar Notify Wrapper
#
# Copyright (C) 2017-2018 Chris Caron <lead2gold@gmail.com>
#
# This file is part of apprise.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
from json import dumps
import requests
import re
from time import time
import hmac
from hashlib import sha1
try:
from urlparse import urlparse
except ImportError:
from urllib.parse import urlparse
from .NotifyBase import NotifyBase
from .NotifyBase import HTTP_ERROR_MAP
from ..common import NotifyImageSize
from ..utils import compat_is_basestring
# Default to sending to all devices if nothing is specified
DEFAULT_TAG = '@all'
# The tags value is an structure containing an array of strings defining the
# list of tagged devices that the notification need to be send to, and a
# boolean operator (and / or) that defines the criteria to match devices
# against those tags.
IS_TAG = re.compile(r'^[@](?P<name>[A-Z0-9]{1,63})$', re.I)
# Device tokens are only referenced when developing.
# it's not likely you'll send a message directly to a device, but
# if you do; this plugin supports it.
IS_DEVICETOKEN = re.compile(r'^[A-Z0-9]{64}$', re.I)
# Both an access key and seret key are created and assigned to each project
# you create on the boxcar website
VALIDATE_ACCESS = re.compile(r'[A-Z0-9_-]{64}', re.I)
VALIDATE_SECRET = re.compile(r'[A-Z0-9_-]{64}', re.I)
# Used to break apart list of potential tags by their delimiter
# into a usable list.
TAGS_LIST_DELIM = re.compile(r'[ \t\r\n,\\/]+')
class NotifyBoxcar(NotifyBase):
"""
A wrapper for Boxcar Notifications
"""
# All boxcar notifications are secure
secure_protocol = 'boxcar'
# Boxcar URL
notify_url = 'https://boxcar-api.io/api/push/'
# Allows the user to specify the NotifyImageSize object
image_size = NotifyImageSize.XY_72
# The maximum allowable characters allowed in the body per message
body_maxlen = 10000
def __init__(self, access, secret, recipients=None, **kwargs):
"""
Initialize Boxcar Object
"""
super(NotifyBoxcar, self).__init__(**kwargs)
# Initialize tag list
self.tags = list()
# Initialize device_token list
self.device_tokens = list()
try:
# Access Key (associated with project)
self.access = access.strip()
except AttributeError:
self.logger.warning(
'The specified access key specified is invalid.',
)
raise TypeError(
'The specified access key specified is invalid.',
)
try:
# Secret Key (associated with project)
self.secret = secret.strip()
except AttributeError:
self.logger.warning(
'The specified secret key specified is invalid.',
)
raise TypeError(
'The specified secret key specified is invalid.',
)
if not VALIDATE_ACCESS.match(self.access):
self.logger.warning(
'The access key specified (%s) is invalid.' % self.access,
)
raise TypeError(
'The access key specified (%s) is invalid.' % self.access,
)
if not VALIDATE_SECRET.match(self.secret):
self.logger.warning(
'The secret key specified (%s) is invalid.' % self.secret,
)
raise TypeError(
'The secret key specified (%s) is invalid.' % self.secret,
)
if not recipients:
self.tags.append(DEFAULT_TAG)
recipients = []
elif compat_is_basestring(recipients):
recipients = [x for x in filter(bool, TAGS_LIST_DELIM.split(
recipients,
))]
# Validate recipients and drop bad ones:
for recipient in recipients:
if IS_TAG.match(recipient):
# store valid tag/alias
self.tags.append(IS_TAG.match(recipient).group('name'))
elif IS_DEVICETOKEN.match(recipient):
# store valid device
self.device_tokens.append(recipient)
else:
self.logger.warning(
'Dropped invalid tag/alias/device_token '
'(%s) specified.' % recipient,
)
def notify(self, title, body, notify_type, **kwargs):
"""
Perform Boxcar Notification
"""
headers = {
'User-Agent': self.app_id,
'Content-Type': 'application/json'
}
# prepare Boxcar Object
payload = {
'aps': {
'badge': 'auto',
'alert': '',
},
'expires': str(int(time() + 30)),
}
if title:
payload['aps']['@title'] = title
if body:
payload['aps']['alert'] = body
if self.tags:
payload['tags'] = {'or': self.tags}
if self.device_tokens:
payload['device_tokens'] = self.device_tokens
# Source picture should be <= 450 DP wide, ~2:1 aspect.
image_url = self.image_url(notify_type)
if image_url:
# Set our image
payload['@img'] = image_url
# Acquire our hostname
host = urlparse(self.notify_url).hostname
# Calculate signature.
str_to_sign = "%s\n%s\n%s\n%s" % (
"POST", host, "/api/push", dumps(payload))
h = hmac.new(
bytearray(self.secret, 'utf-8'),
bytearray(str_to_sign, 'utf-8'),
sha1,
)
params = self.urlencode({
"publishkey": self.access,
"signature": h.hexdigest(),
})
notify_url = '%s?%s' % (self.notify_url, params)
self.logger.debug('Boxcar POST URL: %s (cert_verify=%r)' % (
notify_url, self.verify_certificate,
))
self.logger.debug('Boxcar Payload: %s' % str(payload))
try:
r = requests.post(
notify_url,
data=dumps(payload),
headers=headers,
verify=self.verify_certificate,
)
# Boxcar returns 201 (Created) when successful
if r.status_code != requests.codes.created:
try:
self.logger.warning(
'Failed to send Boxcar notification: '
'%s (error=%s).' % (
HTTP_ERROR_MAP[r.status_code],
r.status_code))
except KeyError:
self.logger.warning(
'Failed to send Boxcar notification '
'(error=%s).' % (
r.status_code))
# self.logger.debug('Response Details: %s' % r.raw.read())
# Return; we're done
return False
else:
self.logger.info('Sent Boxcar notification.')
except requests.RequestException as e:
self.logger.warning(
'A Connection error occured sending Boxcar '
'notification to %s.' % (host))
self.logger.debug('Socket Exception: %s' % str(e))
# Return; we're done
return False
return True
@staticmethod
def parse_url(url):
"""
Parses the URL and returns it broken apart into a dictionary.
"""
results = NotifyBase.parse_url(url, verify_host=False)
if not results:
# We're done early
return None
# The first token is stored in the hostname
access = results['host']
# Now fetch the remaining tokens
secret = NotifyBase.split_path(results['fullpath'])[0]
# Our recipients
recipients = ','.join(
NotifyBase.split_path(results['fullpath'])[1:])
if not (access and secret):
# If we did not recive an access and/or secret code
# then we're done
return None
# Store our required content
results['recipients'] = recipients if recipients else None
results['access'] = access
results['secret'] = secret
return results