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559 lines
20 KiB
Python
559 lines
20 KiB
Python
# -*- coding: utf-8 -*-
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# BSD 2-Clause License
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#
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# Apprise - Push Notification Library.
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# Copyright (c) 2023, Chris Caron <lead2gold@gmail.com>
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# API Source:
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# https://developers.facebook.com/docs/whatsapp/cloud-api/reference/messages
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#
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# 1. Register a developer account with Meta:
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# https://developers.facebook.com/docs/whatsapp/cloud-api/get-started
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# 2. Enable 2 Factor Authentication (2FA) with your account (if not done
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# already)
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# 3. Create a App using WhatsApp Product. There are 2 to create an app from
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# Do NOT chose the WhatsApp Webhook one (choose the other)
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#
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# When you click on the API Setup section of your new app you need to record
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# both the access token and the From Phone Number ID. Note that this not the
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# from phone number itself, but it's ID. It's displayed below and contains
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# way more numbers then your typical phone number
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import re
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import requests
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from json import loads, dumps
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from .NotifyBase import NotifyBase
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from ..common import NotifyType
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from ..utils import is_phone_no
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from ..utils import parse_phone_no
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from ..utils import validate_regex
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from ..AppriseLocale import gettext_lazy as _
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class NotifyWhatsApp(NotifyBase):
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"""
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A wrapper for WhatsApp Notifications
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"""
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# The default descriptive name associated with the Notification
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service_name = 'WhatsApp'
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# The services URL
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service_url = \
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'https://developers.facebook.com/docs/whatsapp/cloud-api/get-started'
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# All notification requests are secure
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secure_protocol = 'whatsapp'
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# 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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# Facebook Graph version
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fb_graph_version = 'v17.0'
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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_whatsapp'
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# WhatsApp Message Notification URL
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notify_url = 'https://graph.facebook.com/{fb_ver}/{phone_id}/messages'
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# The maximum length of the body
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body_maxlen = 1024
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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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# Define object templates
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templates = (
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'{schema}://{token}@{from_phone_id}/{targets}',
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'{schema}://{template}:{token}@{from_phone_id}/{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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'token': {
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'name': _('Access Token'),
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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]+$', 'i'),
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},
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'template': {
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'name': _('Template Name'),
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'type': 'string',
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'required': False,
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'regex': (r'^[^\s]+$', 'i'),
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},
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'from_phone_id': {
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'name': _('From Phone ID'),
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'type': 'string',
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'private': True,
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'required': True,
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'regex': (r'^[0-9]+$', 'i'),
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},
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'target_phone': {
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'name': _('Target Phone No'),
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'type': 'string',
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'prefix': '+',
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'regex': (r'^[0-9\s)(+-]+$', '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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'language': {
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'name': _('Language'),
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'type': 'string',
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'default': 'en_US',
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'regex': (r'^[^0-9\s]+$', 'i'),
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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_id',
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},
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'token': {
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'alias_of': 'token',
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},
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'template': {
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'alias_of': 'template',
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},
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'lang': {
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'alias_of': 'language',
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},
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})
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# Our supported mappings and component keys
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component_key_re = re.compile(
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r'(?P<key>((?P<id>[1-9][0-9]*)|(?P<map>body|type)))', re.IGNORECASE)
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# Define any kwargs we're using
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template_kwargs = {
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'template_mapping': {
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'name': _('Template Mapping'),
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'prefix': ':',
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},
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}
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def __init__(self, token, from_phone_id, template=None, targets=None,
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language=None, template_mapping=None, **kwargs):
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"""
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Initialize WhatsApp Object
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"""
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super().__init__(**kwargs)
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# The Access Token associated with the account
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self.token = validate_regex(
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token, *self.template_tokens['token']['regex'])
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if not self.token:
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msg = 'An invalid WhatsApp Access Token ' \
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'({}) was specified.'.format(token)
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self.logger.warning(msg)
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raise TypeError(msg)
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# The From Phone ID associated with the account
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self.from_phone_id = validate_regex(
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from_phone_id, *self.template_tokens['from_phone_id']['regex'])
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if not self.from_phone_id:
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msg = 'An invalid WhatsApp From Phone ID ' \
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'({}) was specified.'.format(from_phone_id)
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self.logger.warning(msg)
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raise TypeError(msg)
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# The template to associate with the message
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if template:
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self.template = validate_regex(
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template, *self.template_tokens['template']['regex'])
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if not self.template:
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msg = 'An invalid WhatsApp Template Name ' \
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'({}) was specified.'.format(template)
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self.logger.warning(msg)
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raise TypeError(msg)
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# The Template language Code to use
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if language:
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self.language = validate_regex(
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language, *self.template_tokens['language']['regex'])
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if not self.language:
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msg = 'An invalid WhatsApp Template Language Code ' \
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'({}) was specified.'.format(language)
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self.logger.warning(msg)
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raise TypeError(msg)
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else:
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self.language = self.template_tokens['language']['default']
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else:
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#
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# Message Mode
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#
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self.template = None
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# Parse our targets
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self.targets = list()
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for target in parse_phone_no(targets):
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# Validate targets and drop bad ones:
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result = is_phone_no(target)
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if not result:
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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('+{}'.format(result['full']))
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self.template_mapping = {}
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if template_mapping:
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# Store our extra payload entries
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self.template_mapping.update(template_mapping)
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# Validate Mapping and prepare Components
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self.components = dict()
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self.component_keys = list()
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for key, val in self.template_mapping.items():
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matched = self.component_key_re.match(key)
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if not matched:
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msg = 'An invalid Template Component ID ' \
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'({}) was specified.'.format(key)
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self.logger.warning(msg)
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raise TypeError(msg)
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if matched.group('id'):
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#
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# Manual Component Assigment (by id)
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#
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index = matched.group('id')
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map_to = {
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"type": "text",
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"text": val,
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}
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else: # matched.group('map')
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map_to = matched.group('map').lower()
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matched = self.component_key_re.match(val)
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if not (matched and matched.group('id')):
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msg = 'An invalid Template Component Mapping ' \
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'(:{}={}) was specified.'.format(key, val)
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self.logger.warning(msg)
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raise TypeError(msg)
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index = matched.group('id')
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if index in self.components:
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msg = 'The Template Component index ' \
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'({}) was already assigned.'.format(key)
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self.logger.warning(msg)
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raise TypeError(msg)
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self.components[index] = map_to
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self.component_keys = self.components.keys()
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# Adjust sorting and assume that the user put the order correctly;
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# if not Facebook just won't be very happy and will reject the
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# message
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sorted(self.component_keys)
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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 WhatsApp Notification
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"""
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if not self.targets:
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self.logger.warning(
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'There are no valid WhatsApp targets to notify.')
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return False
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# error tracking (used for function return)
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has_error = False
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# Prepare our URL
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url = self.notify_url.format(
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fb_ver=self.fb_graph_version,
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phone_id=self.from_phone_id,
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)
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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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'Content-Type': 'application/json',
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'Authorization': f'Bearer {self.token}',
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}
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payload = {
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'messaging_product': 'whatsapp',
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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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if not self.template:
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#
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# Send Message
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#
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payload.update({
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'recipient_type': "individual",
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'type': 'text',
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'text': {"body": body},
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})
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else:
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#
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# Send Template
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#
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payload.update({
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'type': 'template',
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"template": {
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"name": self.template,
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"language": {"code": self.language},
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},
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})
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if self.components:
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payload['template']['components'] = [
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{
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"type": "body",
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"parameters": [],
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}
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]
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for key in self.component_keys:
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if isinstance(self.components[key], dict):
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# Manual Assignment
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payload['template']['components'][0]["parameters"]\
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.append(self.components[key])
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continue
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# Mapping of body and/or notify type
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payload['template']['components'][0]["parameters"].append({
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"type": "text",
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"text": body if self.components[key] == 'body'
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else notify_type,
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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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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('WhatsApp POST URL: {} (cert_verify={})'.format(
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url, self.verify_certificate))
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self.logger.debug('WhatsApp 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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data=dumps(payload),
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headers=headers,
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verify=self.verify_certificate,
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timeout=self.request_timeout,
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)
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if r.status_code not in (
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requests.codes.created, 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(r.status_code)
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# set up our status code to use
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status_code = r.status_code
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try:
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# Update our status response if we can
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json_response = loads(r.content)
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status_code = \
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json_response['error'].get('code', status_code)
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status_str = \
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json_response['error'].get('message', status_str)
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except (AttributeError, TypeError, ValueError, KeyError):
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# KeyError = r.content is parseable but does not
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# contain 'error'
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# ValueError = r.content is Unparsable
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# TypeError = r.content is None
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# AttributeError = r is None
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# We could not parse JSON response.
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# We will just use the status we already have.
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pass
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self.logger.warning(
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'Failed to send WhatsApp 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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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 WhatsApp notification to {}.'.format(target))
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except requests.RequestException as e:
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self.logger.warning(
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'A Connection error occurred sending WhatsApp:%s ' % (
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target) + '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, privacy=False, *args, **kwargs):
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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 URL parameters
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params = {}
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if self.template:
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# Add language to our URL
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params['lang'] = self.language
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# Extend our parameters
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params.update(self.url_parameters(privacy=privacy, *args, **kwargs))
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# Payload body extras prefixed with a ':' sign
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# Append our payload extras into our parameters
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params.update(
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{':{}'.format(k): v for k, v in self.template_mapping.items()})
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return '{schema}://{template}{token}@{from_id}/{targets}/?{params}'\
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.format(
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schema=self.secure_protocol,
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from_id=self.pprint(
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self.from_phone_id, privacy, safe=''),
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token=self.pprint(self.token, privacy, safe=''),
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template='' if not self.template
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else '{}:'.format(
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NotifyWhatsApp.quote(self.template, safe='')),
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targets='/'.join(
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[NotifyWhatsApp.quote(x, safe='') for x in self.targets]),
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params=NotifyWhatsApp.urlencode(params))
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def __len__(self):
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"""
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Returns the number of targets associated with this notification
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"""
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targets = len(self.targets)
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return targets if targets > 0 else 1
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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 re-instantiate 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'] = NotifyWhatsApp.split_path(results['fullpath'])
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# The hostname is our From Phone ID
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results['from_phone_id'] = NotifyWhatsApp.unquote(results['host'])
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# Determine if we have a Template, otherwise load our token
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if results['password']:
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#
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# Template Mode
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#
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results['template'] = NotifyWhatsApp.unquote(results['user'])
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results['token'] = NotifyWhatsApp.unquote(results['password'])
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else:
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#
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# Message Mode
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#
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results['token'] = NotifyWhatsApp.unquote(results['user'])
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# Access token
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if 'token' in results['qsd'] and len(results['qsd']['token']):
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# Extract the account sid from an argument
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results['token'] = \
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NotifyWhatsApp.unquote(results['qsd']['token'])
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# Template
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if 'template' in results['qsd'] and len(results['qsd']['template']):
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results['template'] = results['qsd']['template']
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# Template Language
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if 'lang' in results['qsd'] and len(results['qsd']['lang']):
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results['language'] = results['qsd']['lang']
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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['from_phone_id'] = \
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NotifyWhatsApp.unquote(results['qsd']['from'])
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if 'source' in results['qsd'] and \
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len(results['qsd']['source']):
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results['from_phone_id'] = \
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NotifyWhatsApp.unquote(results['qsd']['source'])
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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']):
|
|
results['targets'] += \
|
|
NotifyWhatsApp.parse_phone_no(results['qsd']['to'])
|
|
|
|
# store any additional payload extra's defined
|
|
results['template_mapping'] = {
|
|
NotifyWhatsApp.unquote(x): NotifyWhatsApp.unquote(y)
|
|
for x, y in results['qsd:'].items()
|
|
}
|
|
|
|
return results
|