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Diffstat (limited to 'libs/apprise/plugins/NotifyForm.py')
-rw-r--r-- | libs/apprise/plugins/NotifyForm.py | 524 |
1 files changed, 524 insertions, 0 deletions
diff --git a/libs/apprise/plugins/NotifyForm.py b/libs/apprise/plugins/NotifyForm.py new file mode 100644 index 000000000..9690cd4f5 --- /dev/null +++ b/libs/apprise/plugins/NotifyForm.py @@ -0,0 +1,524 @@ +# -*- coding: utf-8 -*- +# BSD 2-Clause License +# +# Apprise - Push Notification Library. +# Copyright (c) 2024, Chris Caron <[email protected]> +# +# 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 |