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bazarr/libs/apprise/plugins/NotifyForm.py

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# -*- coding: utf-8 -*-
# BSD 2-Clause License
#
# Apprise - Push Notification Library.
# Copyright (c) 2023, Chris Caron <lead2gold@gmail.com>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
import re
import requests
from .NotifyBase import NotifyBase
from ..URLBase import PrivacyMode
from ..common import NotifyImageSize
from ..common import NotifyType
from ..AppriseLocale import gettext_lazy as _
class FORMPayloadField:
"""
Identifies the fields available in the FORM Payload
"""
VERSION = 'version'
TITLE = 'title'
MESSAGE = 'message'
MESSAGETYPE = 'type'
# Defines the method to send the notification
METHODS = (
'POST',
'GET',
'DELETE',
'PUT',
'HEAD',
'PATCH'
)
class NotifyForm(NotifyBase):
"""
A wrapper for Form Notifications
"""
# Support
# - file*
# - file?
# - file*name
# - file?name
# - ?file
# - *file
# - file
# The code will convert the ? or * to the digit increments
__attach_as_re = re.compile(
r'((?P<match1>(?P<id1a>[a-z0-9_-]+)?'
r'(?P<wc1>[*?+$:.%]+)(?P<id1b>[a-z0-9_-]+))'
r'|(?P<match2>(?P<id2>[a-z0-9_-]+)(?P<wc2>[*?+$:.%]?)))',
re.IGNORECASE)
# Our count
attach_as_count = '{:02d}'
# the default attach_as value
attach_as_default = f'file{attach_as_count}'
# The default descriptive name associated with the Notification
service_name = 'Form'
# The default protocol
protocol = 'form'
# The default secure protocol
secure_protocol = 'forms'
# A URL that takes you to the setup/help of the specific protocol
setup_url = 'https://github.com/caronc/apprise/wiki/Notify_Custom_Form'
# Support attachments
attachment_support = True
# Allows the user to specify the NotifyImageSize object
image_size = NotifyImageSize.XY_128
# Disable throttle rate for Form requests since they are normally
# local anyway
request_rate_per_sec = 0
# Define the FORM version to place in all payloads
# Version: Major.Minor, Major is only updated if the entire schema is
# changed. If just adding new items (or removing old ones, only increment
# the Minor!
form_version = '1.0'
# Define object templates
templates = (
'{schema}://{host}',
'{schema}://{host}:{port}',
'{schema}://{user}@{host}',
'{schema}://{user}@{host}:{port}',
'{schema}://{user}:{password}@{host}',
'{schema}://{user}:{password}@{host}:{port}',
)
# Define our tokens; these are the minimum tokens required required to
# be passed into this function (as arguments). The syntax appends any
# previously defined in the base package and builds onto them
template_tokens = dict(NotifyBase.template_tokens, **{
'host': {
'name': _('Hostname'),
'type': 'string',
'required': True,
},
'port': {
'name': _('Port'),
'type': 'int',
'min': 1,
'max': 65535,
},
'user': {
'name': _('Username'),
'type': 'string',
},
'password': {
'name': _('Password'),
'type': 'string',
'private': True,
},
})
# Define our template arguments
template_args = dict(NotifyBase.template_args, **{
'method': {
'name': _('Fetch Method'),
'type': 'choice:string',
'values': METHODS,
'default': METHODS[0],
},
'attach-as': {
'name': _('Attach File As'),
'type': 'string',
'default': 'file*',
'map_to': 'attach_as',
},
})
# Define any kwargs we're using
template_kwargs = {
'headers': {
'name': _('HTTP Header'),
'prefix': '+',
},
'payload': {
'name': _('Payload Extras'),
'prefix': ':',
},
'params': {
'name': _('GET Params'),
'prefix': '-',
},
}
def __init__(self, headers=None, method=None, payload=None, params=None,
attach_as=None, **kwargs):
"""
Initialize Form Object
headers can be a dictionary of key/value pairs that you want to
additionally include as part of the server headers to post with
"""
super().__init__(**kwargs)
self.fullpath = kwargs.get('fullpath')
if not isinstance(self.fullpath, str):
self.fullpath = ''
self.method = self.template_args['method']['default'] \
if not isinstance(method, str) else method.upper()
if self.method not in METHODS:
msg = 'The method specified ({}) is invalid.'.format(method)
self.logger.warning(msg)
raise TypeError(msg)
# Custom File Attachment Over-Ride Support
if not isinstance(attach_as, str):
# Default value
self.attach_as = self.attach_as_default
self.attach_multi_support = True
else:
result = self.__attach_as_re.match(attach_as.strip())
if not result:
msg = 'The attach-as specified ({}) is invalid.'.format(
attach_as)
self.logger.warning(msg)
raise TypeError(msg)
self.attach_as = ''
self.attach_multi_support = False
if result.group('match1'):
if result.group('id1a'):
self.attach_as += result.group('id1a')
self.attach_as += self.attach_as_count
self.attach_multi_support = True
self.attach_as += result.group('id1b')
else: # result.group('match2'):
self.attach_as += result.group('id2')
if result.group('wc2'):
self.attach_as += self.attach_as_count
self.attach_multi_support = True
# A payload map allows users to over-ride the default mapping if
# they're detected with the :overide=value. Normally this would
# create a new key and assign it the value specified. However
# if the key you specify is actually an internally mapped one,
# then a re-mapping takes place using the value
self.payload_map = {
FORMPayloadField.VERSION: FORMPayloadField.VERSION,
FORMPayloadField.TITLE: FORMPayloadField.TITLE,
FORMPayloadField.MESSAGE: FORMPayloadField.MESSAGE,
FORMPayloadField.MESSAGETYPE: FORMPayloadField.MESSAGETYPE,
}
self.params = {}
if params:
# Store our extra headers
self.params.update(params)
self.headers = {}
if headers:
# Store our extra headers
self.headers.update(headers)
self.payload_overrides = {}
self.payload_extras = {}
if payload:
# Store our extra payload entries
self.payload_extras.update(payload)
for key in list(self.payload_extras.keys()):
# Any values set in the payload to alter a system related one
# alters the system key. Hence :message=msg maps the 'message'
# variable that otherwise already contains the payload to be
# 'msg' instead (containing the payload)
if key in self.payload_map:
self.payload_map[key] = self.payload_extras[key]
self.payload_overrides[key] = self.payload_extras[key]
del self.payload_extras[key]
return
def url(self, privacy=False, *args, **kwargs):
"""
Returns the URL built dynamically based on specified arguments.
"""
# Define any URL parameters
params = {
'method': self.method,
}
# Extend our parameters
params.update(self.url_parameters(privacy=privacy, *args, **kwargs))
# Append our headers into our parameters
params.update({'+{}'.format(k): v for k, v in self.headers.items()})
# Append our GET params into our parameters
params.update({'-{}'.format(k): v for k, v in self.params.items()})
# Append our payload extra's into our parameters
params.update(
{':{}'.format(k): v for k, v in self.payload_extras.items()})
params.update(
{':{}'.format(k): v for k, v in self.payload_overrides.items()})
if self.attach_as != self.attach_as_default:
# Provide Attach-As extension details
params['attach-as'] = self.attach_as
# Determine Authentication
auth = ''
if self.user and self.password:
auth = '{user}:{password}@'.format(
user=NotifyForm.quote(self.user, safe=''),
password=self.pprint(
self.password, privacy, mode=PrivacyMode.Secret, safe=''),
)
elif self.user:
auth = '{user}@'.format(
user=NotifyForm.quote(self.user, safe=''),
)
default_port = 443 if self.secure else 80
return '{schema}://{auth}{hostname}{port}{fullpath}?{params}'.format(
schema=self.secure_protocol if self.secure else self.protocol,
auth=auth,
# never encode hostname since we're expecting it to be a valid one
hostname=self.host,
port='' if self.port is None or self.port == default_port
else ':{}'.format(self.port),
fullpath=NotifyForm.quote(self.fullpath, safe='/')
if self.fullpath else '/',
params=NotifyForm.urlencode(params),
)
def send(self, body, title='', notify_type=NotifyType.INFO, attach=None,
**kwargs):
"""
Perform Form Notification
"""
# Prepare HTTP Headers
headers = {
'User-Agent': self.app_id,
}
# Apply any/all header over-rides defined
headers.update(self.headers)
# Track our potential attachments
files = []
if attach and self.attachment_support:
for no, attachment in enumerate(attach, start=1):
# Perform some simple error checking
if not attachment:
# We could not access the attachment
self.logger.error(
'Could not access attachment {}.'.format(
attachment.url(privacy=True)))
return False
try:
files.append((
self.attach_as.format(no)
if self.attach_multi_support else self.attach_as, (
attachment.name,
open(attachment.path, 'rb'),
attachment.mimetype)
))
except (OSError, IOError) as e:
self.logger.warning(
'An I/O error occurred while opening {}.'.format(
attachment.name if attachment else 'attachment'))
self.logger.debug('I/O Exception: %s' % str(e))
return False
if not self.attach_multi_support and no > 1:
self.logger.warning(
'Multiple attachments provided while '
'form:// Multi-Attachment Support not enabled')
# prepare Form Object
payload = {}
for key, value in (
(FORMPayloadField.VERSION, self.form_version),
(FORMPayloadField.TITLE, title),
(FORMPayloadField.MESSAGE, body),
(FORMPayloadField.MESSAGETYPE, notify_type)):
if not self.payload_map[key]:
# Do not store element in payload response
continue
payload[self.payload_map[key]] = value
# Apply any/all payload over-rides defined
payload.update(self.payload_extras)
auth = None
if self.user:
auth = (self.user, self.password)
# Set our schema
schema = 'https' if self.secure else 'http'
url = '%s://%s' % (schema, self.host)
if isinstance(self.port, int):
url += ':%d' % self.port
url += self.fullpath
self.logger.debug('Form %s URL: %s (cert_verify=%r)' % (
self.method, url, self.verify_certificate,
))
self.logger.debug('Form Payload: %s' % str(payload))
# Always call throttle before any remote server i/o is made
self.throttle()
if self.method == 'GET':
method = requests.get
payload.update(self.params)
elif self.method == 'PUT':
method = requests.put
elif self.method == 'PATCH':
method = requests.patch
elif self.method == 'DELETE':
method = requests.delete
elif self.method == 'HEAD':
method = requests.head
else: # POST
method = requests.post
try:
r = method(
url,
files=None if not files else files,
data=payload if self.method != 'GET' else None,
params=payload if self.method == 'GET' else self.params,
headers=headers,
auth=auth,
verify=self.verify_certificate,
timeout=self.request_timeout,
)
if r.status_code < 200 or r.status_code >= 300:
# We had a problem
status_str = \
NotifyForm.http_response_code_lookup(r.status_code)
self.logger.warning(
'Failed to send Form %s notification: %s%serror=%s.',
self.method,
status_str,
', ' if status_str else '',
str(r.status_code))
self.logger.debug('Response Details:\r\n{}'.format(r.content))
# Return; we're done
return False
else:
self.logger.info('Sent Form %s notification.', self.method)
except requests.RequestException as e:
self.logger.warning(
'A Connection error occurred sending Form '
'notification to %s.' % self.host)
self.logger.debug('Socket Exception: %s' % str(e))
# Return; we're done
return False
except (OSError, IOError) as e:
self.logger.warning(
'An I/O error occurred while reading one of the '
'attached files.')
self.logger.debug('I/O Exception: %s' % str(e))
return False
finally:
for file in files:
# Ensure all files are closed
file[1][1].close()
return True
@staticmethod
def parse_url(url):
"""
Parses the URL and returns enough arguments that can allow
us to re-instantiate this object.
"""
results = NotifyBase.parse_url(url)
if not results:
# We're done early as we couldn't load the results
return results
# store any additional payload extra's defined
results['payload'] = {NotifyForm.unquote(x): NotifyForm.unquote(y)
for x, y in results['qsd:'].items()}
# Add our headers that the user can potentially over-ride if they wish
# to to our returned result set and tidy entries by unquoting them
results['headers'] = {NotifyForm.unquote(x): NotifyForm.unquote(y)
for x, y in results['qsd+'].items()}
# Add our GET paramters in the event the user wants to pass these along
results['params'] = {NotifyForm.unquote(x): NotifyForm.unquote(y)
for x, y in results['qsd-'].items()}
# Allow Attach-As Support which over-rides the name of the filename
# posted with the form://
# the default is file01, file02, file03, etc
if 'attach-as' in results['qsd'] and len(results['qsd']['attach-as']):
results['attach_as'] = results['qsd']['attach-as']
# Set method if not otherwise set
if 'method' in results['qsd'] and len(results['qsd']['method']):
results['method'] = NotifyForm.unquote(results['qsd']['method'])
return results
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