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417 lines
14 KiB
417 lines
14 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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# Sign-up with https://dashboard.nexmo.com/
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#
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# Get your (api) key and secret here:
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# - https://dashboard.nexmo.com/getting-started-guide
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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 ..AppriseLocale import gettext_lazy as _
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# Token required as part of the API request
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VALIDATE_APIKEY = re.compile(r'^[a-z0-9]{8}$', re.I)
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VALIDATE_SECRET = re.compile(r'^[a-z0-9]{16}$', re.I)
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# Some Phone Number Detection
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IS_PHONE_NO = re.compile(r'^\+?(?P<phone>[0-9\s)(+-]+)\s*$')
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class NotifyNexmo(NotifyBase):
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"""
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A wrapper for Nexmo Notifications
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"""
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# The default descriptive name associated with the Notification
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service_name = 'Nexmo'
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# The services URL
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service_url = 'https://dashboard.nexmo.com/'
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# The default protocol
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secure_protocol = 'nexmo'
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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_nexmo'
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# Nexmo uses the http protocol with JSON requests
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notify_url = 'https://rest.nexmo.com/sms/json'
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# The maximum length of the body
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body_maxlen = 140
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# A title can not be used for SMS Messages. Setting this to zero will
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# cause any title (if defined) to get placed into the message body.
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title_maxlen = 0
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# Default Time To Live
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# By default Nexmo attempt delivery for 72 hours, however the maximum
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# effective value depends on the operator and is typically 24 - 48 hours.
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# We recommend this value should be kept at its default or at least 30
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# minutes.
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default_ttl = 900000
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ttl_max = 604800000
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ttl_min = 20000
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# Define object templates
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templates = (
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'{schema}://{apikey}:{secret}@{from_phone}',
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'{schema}://{apikey}:{secret}@{from_phone}/{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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'apikey': {
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'name': _('API Key'),
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'type': 'string',
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'required': True,
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'regex': (r'AC[a-z0-9]{8}', 'i'),
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},
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'secret': {
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'name': _('API Secret'),
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'type': 'string',
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'private': True,
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'required': True,
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'regex': (r'[a-z0-9]{16}', 'i'),
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},
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'from_phone': {
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'name': _('From Phone No'),
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'type': 'string',
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'required': True,
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'regex': (r'\+?[0-9\s)(+-]+', 'i'),
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'map_to': 'source',
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},
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'target_phone': {
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'name': _('Target Phone No'),
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'type': 'string',
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'prefix': '+',
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'regex': (r'[0-9\s)(+-]+', '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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'to': {
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'alias_of': 'targets',
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},
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'from': {
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'alias_of': 'from_phone',
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},
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'key': {
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'alias_of': 'apikey',
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},
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'secret': {
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'alias_of': 'secret',
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},
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'ttl': {
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'name': _('ttl'),
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'type': 'int',
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'default': 900000,
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'min': 20000,
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'max': 604800000,
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},
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})
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def __init__(self, apikey, secret, source, targets=None, ttl=None,
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**kwargs):
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"""
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Initialize Nexmo Object
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"""
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super(NotifyNexmo, self).__init__(**kwargs)
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try:
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# The Account SID 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 Nexmo APIKey was specified.'
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self.logger.warning(msg)
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raise TypeError(msg)
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if not VALIDATE_APIKEY.match(self.apikey):
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msg = 'The Nexmo API Key specified ({}) is invalid.'\
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.format(self.apikey)
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self.logger.warning(msg)
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raise TypeError(msg)
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try:
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# The Account SID associated with the account
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self.secret = secret.strip()
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except AttributeError:
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# Token was None
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msg = 'No Nexmo API Secret was specified.'
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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 Nexmo API Secret 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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# Set our Time to Live Flag
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self.ttl = self.default_ttl
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try:
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self.ttl = int(ttl)
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except (ValueError, TypeError):
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# Do nothing
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pass
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if self.ttl < self.ttl_min or self.ttl > self.ttl_max:
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msg = 'The Nexmo TTL specified ({}) is out of range.'\
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.format(self.ttl)
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self.logger.warning(msg)
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raise TypeError(msg)
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# The Source Phone #
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self.source = source
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if not IS_PHONE_NO.match(self.source):
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msg = 'The Account (From) Phone # specified ' \
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'({}) is invalid.'.format(source)
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self.logger.warning(msg)
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raise TypeError(msg)
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# Tidy source
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self.source = re.sub(r'[^\d]+', '', self.source)
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if len(self.source) < 11 or len(self.source) > 14:
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msg = 'The Account (From) Phone # specified ' \
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'({}) contains an invalid digit count.'.format(source)
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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 = list()
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for target in parse_list(targets):
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# Validate targets and drop bad ones:
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result = IS_PHONE_NO.match(target)
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if result:
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# Further check our phone # for it's digit count
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result = ''.join(re.findall(r'\d+', result.group('phone')))
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if len(result) < 11 or len(result) > 14:
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self.logger.warning(
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'Dropped invalid phone # '
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'({}) specified.'.format(target),
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)
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continue
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# store valid phone number
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self.targets.append(result)
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continue
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self.logger.warning(
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'Dropped invalid phone # '
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'({}) specified.'.format(target),
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)
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def send(self, body, title='', notify_type=NotifyType.INFO, **kwargs):
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"""
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Perform Nexmo 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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'Content-Type': 'application/x-www-form-urlencoded',
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}
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# Prepare our payload
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payload = {
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'api_key': self.apikey,
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'api_secret': self.secret,
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'ttl': self.ttl,
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'from': self.source,
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'text': body,
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# The to gets populated in the loop below
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'to': None,
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}
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# Create a copy of the targets list
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targets = list(self.targets)
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if len(targets) == 0:
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# No sources specified, use our own phone no
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targets.append(self.source)
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while len(targets):
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# Get our target to notify
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target = targets.pop(0)
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# Prepare our user
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payload['to'] = target
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# Some Debug Logging
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self.logger.debug('Nexmo POST URL: {} (cert_verify={})'.format(
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self.notify_url, self.verify_certificate))
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self.logger.debug('Nexmo 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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self.notify_url,
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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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NotifyNexmo.http_response_code_lookup(
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r.status_code)
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self.logger.warning(
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'Failed to send Nexmo notification to {}: '
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'{}{}error={}.'.format(
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target,
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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('Sent Nexmo notification to %s.' % target)
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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 Nexmo:%s '
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'notification.' % target
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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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'ttl': str(self.ttl),
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}
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return '{schema}://{key}:{secret}@{source}/{targets}/?{args}'.format(
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schema=self.secure_protocol,
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key=self.apikey,
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secret=self.secret,
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source=NotifyNexmo.quote(self.source, safe=''),
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targets='/'.join(
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[NotifyNexmo.quote(x, safe='') for x in self.targets]),
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args=NotifyNexmo.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, verify_host=False)
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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'] = NotifyNexmo.split_path(results['fullpath'])
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# The hostname is our source number
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results['source'] = NotifyNexmo.unquote(results['host'])
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# Get our account_side and auth_token from the user/pass config
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results['apikey'] = NotifyNexmo.unquote(results['user'])
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results['secret'] = NotifyNexmo.unquote(results['password'])
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# API Key
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if 'key' in results['qsd'] and len(results['qsd']['key']):
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# Extract the API Key from an argument
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results['apikey'] = \
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NotifyNexmo.unquote(results['qsd']['key'])
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# API Secret
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if 'secret' in results['qsd'] and len(results['qsd']['secret']):
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# Extract the API Secret from an argument
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results['secret'] = \
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NotifyNexmo.unquote(results['qsd']['secret'])
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# Support the 'from' and 'source' variable so that we can support
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# targets this way too.
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# The 'from' makes it easier to use yaml configuration
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if 'from' in results['qsd'] and len(results['qsd']['from']):
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results['source'] = \
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NotifyNexmo.unquote(results['qsd']['from'])
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if 'source' in results['qsd'] and len(results['qsd']['source']):
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results['source'] = \
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NotifyNexmo.unquote(results['qsd']['source'])
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# Support the 'ttl' variable
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if 'ttl' in results['qsd'] and len(results['qsd']['ttl']):
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results['ttl'] = \
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NotifyNexmo.unquote(results['qsd']['ttl'])
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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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NotifyNexmo.parse_list(results['qsd']['to'])
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return results
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