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# -*- 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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import re
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import six
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import requests
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import hmac
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from json import dumps
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from time import time
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from hashlib import sha1
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from itertools import chain
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try:
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from urlparse import urlparse
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except ImportError:
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from urllib.parse import urlparse
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from .NotifyBase import NotifyBase
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from ..utils import parse_bool
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from ..common import NotifyType
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from ..common import NotifyImageSize
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from ..AppriseLocale import gettext_lazy as _
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# Default to sending to all devices if nothing is specified
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DEFAULT_TAG = '@all'
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# The tags value is an structure containing an array of strings defining the
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# list of tagged devices that the notification need to be send to, and a
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# boolean operator (‘and’ / ‘or’) that defines the criteria to match devices
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# against those tags.
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IS_TAG = re.compile(r'^[@](?P<name>[A-Z0-9]{1,63})$', re.I)
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# Device tokens are only referenced when developing.
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# It's not likely you'll send a message directly to a device, but if you do;
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# this plugin supports it.
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IS_DEVICETOKEN = re.compile(r'^[A-Z0-9]{64}$', re.I)
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# Both an access key and seret key are created and assigned to each project
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# you create on the boxcar website
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VALIDATE_ACCESS = re.compile(r'[A-Z0-9_-]{64}', re.I)
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VALIDATE_SECRET = re.compile(r'[A-Z0-9_-]{64}', re.I)
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# Used to break apart list of potential tags by their delimiter into a useable
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# list.
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TAGS_LIST_DELIM = re.compile(r'[ \t\r\n,\\/]+')
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class NotifyBoxcar(NotifyBase):
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"""
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A wrapper for Boxcar Notifications
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"""
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# The default descriptive name associated with the Notification
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service_name = 'Boxcar'
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# The services URL
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service_url = 'https://boxcar.io/'
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# All boxcar notifications are secure
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secure_protocol = 'boxcar'
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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_boxcar'
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# Boxcar URL
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notify_url = 'https://boxcar-api.io/api/push/'
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# Allows the user to specify the NotifyImageSize object
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image_size = NotifyImageSize.XY_72
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# The maximum allowable characters allowed in the body per message
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body_maxlen = 10000
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# Define object templates
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templates = (
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'{schema}://{access_key}/{secret_key}/',
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'{schema}://{access_key}/{secret_key}/{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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'access_key': {
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'name': _('Access Key'),
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'type': 'string',
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'regex': (r'[A-Z0-9_-]{64}', 'i'),
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'private': True,
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'required': True,
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'map_to': 'access',
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},
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'secret_key': {
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'name': _('Secret Key'),
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'type': 'string',
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'regex': (r'[A-Z0-9_-]{64}', 'i'),
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'private': True,
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'required': True,
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'map_to': 'secret',
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},
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'target_tag': {
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'name': _('Target Tag ID'),
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'type': 'string',
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'prefix': '@',
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'regex': (r'[A-Z0-9]{1,63}', 'i'),
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'map_to': 'targets',
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},
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'target_device': {
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'name': _('Target Device ID'),
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'type': 'string',
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'regex': (r'[A-Z0-9]{64}', 'i'),
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'map_to': 'targets',
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},
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'targets': {
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'name': _('Targets'),
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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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'image': {
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'name': _('Include Image'),
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'type': 'bool',
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'default': True,
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'map_to': 'include_image',
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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, access, secret, targets=None, include_image=True,
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**kwargs):
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"""
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Initialize Boxcar Object
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"""
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super(NotifyBoxcar, self).__init__(**kwargs)
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# Initialize tag list
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self.tags = list()
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# Initialize device_token list
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self.device_tokens = list()
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try:
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# Access Key (associated with project)
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self.access = access.strip()
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except AttributeError:
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msg = 'The specified access key is invalid.'
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self.logger.warning(msg)
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raise TypeError(msg)
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try:
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# Secret Key (associated with project)
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self.secret = secret.strip()
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except AttributeError:
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msg = 'The specified secret key is invalid.'
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self.logger.warning(msg)
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raise TypeError(msg)
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if not VALIDATE_ACCESS.match(self.access):
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msg = 'The access key specified ({}) is invalid.'\
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.format(self.access)
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self.logger.warning(msg)
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raise TypeError(msg)
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if not VALIDATE_SECRET.match(self.secret):
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msg = 'The secret key specified ({}) is invalid.'\
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.format(self.secret)
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self.logger.warning(msg)
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raise TypeError(msg)
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if not targets:
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self.tags.append(DEFAULT_TAG)
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targets = []
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elif isinstance(targets, six.string_types):
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targets = [x for x in filter(bool, TAGS_LIST_DELIM.split(
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targets,
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))]
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# Validate targets and drop bad ones:
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for target in targets:
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if IS_TAG.match(target):
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# store valid tag/alias
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self.tags.append(IS_TAG.match(target).group('name'))
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elif IS_DEVICETOKEN.match(target):
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# store valid device
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self.device_tokens.append(target)
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else:
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self.logger.warning(
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'Dropped invalid tag/alias/device_token '
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'({}) specified.'.format(target),
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)
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# Track whether or not we want to send an image with our notification
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# or not.
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self.include_image = include_image
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return
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def send(self, body, title='', notify_type=NotifyType.INFO, **kwargs):
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"""
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Perform Boxcar Notification
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"""
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headers = {
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'User-Agent': self.app_id,
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'Content-Type': 'application/json'
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}
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# prepare Boxcar Object
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payload = {
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'aps': {
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'badge': 'auto',
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'alert': '',
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},
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'expires': str(int(time() + 30)),
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}
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if title:
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payload['aps']['@title'] = title
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if body:
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payload['aps']['alert'] = body
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if self.tags:
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payload['tags'] = {'or': self.tags}
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if self.device_tokens:
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payload['device_tokens'] = self.device_tokens
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# Source picture should be <= 450 DP wide, ~2:1 aspect.
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image_url = None if not self.include_image \
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else self.image_url(notify_type)
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if image_url:
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# Set our image
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payload['@img'] = image_url
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# Acquire our hostname
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host = urlparse(self.notify_url).hostname
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# Calculate signature.
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str_to_sign = "%s\n%s\n%s\n%s" % (
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"POST", host, "/api/push", dumps(payload))
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h = hmac.new(
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bytearray(self.secret, 'utf-8'),
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bytearray(str_to_sign, 'utf-8'),
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sha1,
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)
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params = NotifyBoxcar.urlencode({
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"publishkey": self.access,
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"signature": h.hexdigest(),
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})
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notify_url = '%s?%s' % (self.notify_url, params)
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self.logger.debug('Boxcar POST URL: %s (cert_verify=%r)' % (
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notify_url, self.verify_certificate,
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))
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self.logger.debug('Boxcar Payload: %s' % str(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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notify_url,
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data=dumps(payload),
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headers=headers,
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verify=self.verify_certificate,
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)
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# Boxcar returns 201 (Created) when successful
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if r.status_code != requests.codes.created:
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# We had a problem
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status_str = \
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NotifyBoxcar.http_response_code_lookup(r.status_code)
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self.logger.warning(
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'Failed to send Boxcar notification: '
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'{}{}error={}.'.format(
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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('Response Details:\r\n{}'.format(r.content))
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# Return; we're done
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return False
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else:
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self.logger.info('Sent Boxcar notification.')
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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 Boxcar '
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'notification to %s.' % (host))
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self.logger.debug('Socket Exception: %s' % str(e))
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# Return; we're done
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return False
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return True
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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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'image': 'yes' if self.include_image else 'no',
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'verify': 'yes' if self.verify_certificate else 'no',
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}
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return '{schema}://{access}/{secret}/{targets}/?{args}'.format(
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schema=self.secure_protocol,
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access=NotifyBoxcar.quote(self.access, safe=''),
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secret=NotifyBoxcar.quote(self.secret, safe=''),
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targets='/'.join([
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NotifyBoxcar.quote(x, safe='') for x in chain(
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self.tags, self.device_tokens) if x != DEFAULT_TAG]),
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args=NotifyBoxcar.urlencode(args),
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)
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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 it broken apart into a dictionary.
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"""
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results = NotifyBase.parse_url(url, verify_host=False)
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if not results:
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# We're done early
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return None
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# The first token is stored in the hostname
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results['access'] = NotifyBoxcar.unquote(results['host'])
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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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entries = NotifyBoxcar.split_path(results['fullpath'])
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try:
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# Now fetch the remaining tokens
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results['secret'] = entries.pop(0)
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except IndexError:
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# secret wasn't specified
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results['secret'] = None
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# Our recipients make up the remaining entries of our array
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results['targets'] = entries
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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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NotifyBoxcar.parse_list(results['qsd'].get('to'))
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# Include images with our message
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results['include_image'] = \
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parse_bool(results['qsd'].get('image', True))
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return results
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