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235 lines
8.9 KiB
235 lines
8.9 KiB
# -*- coding: utf-8 -*-
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# BSD 3-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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# 3. Neither the name of the copyright holder nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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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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from ..plugins.NotifyBase import NotifyBase
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from ..utils import URL_DETAILS_RE
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from ..utils import parse_url
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from ..utils import url_assembly
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from ..utils import dict_full_update
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from .. import common
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from ..logger import logger
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import inspect
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class CustomNotifyPlugin(NotifyBase):
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"""
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Apprise Custom Plugin Hook
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This gets initialized based on @notify decorator definitions
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"""
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# Our Custom notification
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service_url = 'https://github.com/caronc/apprise/wiki/Custom_Notification'
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# Over-ride our category since this inheritance of the NotifyBase class
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# should be treated differently.
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category = 'custom'
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# Define object templates
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templates = (
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'{schema}://',
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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 arguments retrieved
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"""
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return parse_url(url, verify_host=False, simple=True)
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def url(self, privacy=False, *args, **kwargs):
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"""
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General URL assembly
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"""
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return '{schema}://'.format(schema=self.secure_protocol)
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@staticmethod
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def instantiate_plugin(url, send_func, name=None):
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"""
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The function used to add a new notification plugin based on the schema
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parsed from the provided URL into our supported matrix structure.
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"""
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if not isinstance(url, str):
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msg = 'An invalid custom notify url/schema ({}) provided in ' \
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'function {}.'.format(url, send_func.__name__)
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logger.warning(msg)
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return None
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# Validate that our schema is okay
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re_match = URL_DETAILS_RE.match(url)
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if not re_match:
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msg = 'An invalid custom notify url/schema ({}) provided in ' \
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'function {}.'.format(url, send_func.__name__)
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logger.warning(msg)
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return None
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# Acquire our plugin name
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plugin_name = re_match.group('schema').lower()
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if not re_match.group('base'):
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url = '{}://'.format(plugin_name)
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# Keep a default set of arguments to apply to all called references
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base_args = parse_url(
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url, default_schema=plugin_name, verify_host=False, simple=True)
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if plugin_name in common.NOTIFY_SCHEMA_MAP:
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# we're already handling this object
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msg = 'The schema ({}) is already defined and could not be ' \
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'loaded from custom notify function {}.' \
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.format(url, send_func.__name__)
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logger.warning(msg)
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return None
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# We define our own custom wrapper class so that we can initialize
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# some key default configuration values allowing calls to our
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# `Apprise.details()` to correctly differentiate one custom plugin
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# that was loaded from another
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class CustomNotifyPluginWrapper(CustomNotifyPlugin):
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# Our Service Name
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service_name = name if isinstance(name, str) \
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and name else 'Custom - {}'.format(plugin_name)
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# Store our matched schema
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secure_protocol = plugin_name
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requirements = {
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# Define our required packaging in order to work
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'details': "Source: {}".format(inspect.getfile(send_func))
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}
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# Assign our send() function
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__send = staticmethod(send_func)
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# Update our default arguments
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_base_args = base_args
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def __init__(self, **kwargs):
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"""
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Our initialization
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"""
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# init parent
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super().__init__(**kwargs)
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self._default_args = {}
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# Apply our updates based on what was parsed
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dict_full_update(self._default_args, self._base_args)
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dict_full_update(self._default_args, kwargs)
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# Update our arguments (applying them to what we originally)
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# initialized as
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self._default_args['url'] = url_assembly(**self._default_args)
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def send(self, body, title='', notify_type=common.NotifyType.INFO,
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*args, **kwargs):
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"""
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Our send() call which triggers our hook
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"""
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response = False
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try:
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# Enforce a boolean response
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result = self.__send(
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body, title, notify_type, *args,
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meta=self._default_args, **kwargs)
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if result is None:
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# The wrapper did not define a return (or returned
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# None)
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# this is treated as a successful return as it is
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# assumed the developer did not care about the result
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# of the call.
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response = True
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else:
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# Perform boolean check (allowing obects to also be
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# returned and check against the __bool__ call
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response = True if result else False
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except Exception as e:
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# Unhandled Exception
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self.logger.warning(
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'An exception occured sending a %s notification.',
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common.
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NOTIFY_SCHEMA_MAP[self.secure_protocol].service_name)
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self.logger.debug(
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'%s Exception: %s',
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common.NOTIFY_SCHEMA_MAP[self.secure_protocol], str(e))
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return False
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if response:
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self.logger.info(
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'Sent %s notification.',
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common.
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NOTIFY_SCHEMA_MAP[self.secure_protocol].service_name)
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else:
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self.logger.warning(
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'Failed to send %s notification.',
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common.
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NOTIFY_SCHEMA_MAP[self.secure_protocol].service_name)
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return response
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# Store our plugin into our core map file
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common.NOTIFY_SCHEMA_MAP[plugin_name] = CustomNotifyPluginWrapper
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# Update our custom plugin map
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module_pyname = str(send_func.__module__)
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if module_pyname not in common.NOTIFY_CUSTOM_MODULE_MAP:
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# Support non-dynamic includes as well...
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common.NOTIFY_CUSTOM_MODULE_MAP[module_pyname] = {
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'path': inspect.getfile(send_func),
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# Initialize our template
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'notify': {},
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}
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common.\
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NOTIFY_CUSTOM_MODULE_MAP[module_pyname]['notify'][plugin_name] = {
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# Our Serivice Description (for API and CLI --details view)
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'name': CustomNotifyPluginWrapper.service_name,
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# The name of the send function the @notify decorator wrapped
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'fn_name': send_func.__name__,
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# The URL that was provided in the @notify decorator call
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# associated with the 'on='
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'url': url,
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# The Initialized Plugin that was generated based on the above
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# parameters
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'plugin': CustomNotifyPluginWrapper}
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# return our plugin
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return common.NOTIFY_SCHEMA_MAP[plugin_name]
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