# -*- coding: utf-8 -*- # # Copyright (C) 2019 Chris Caron # All rights reserved. # # This code is licensed under the MIT License. # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files(the "Software"), to deal # in the Software without restriction, including without limitation the rights # to use, copy, modify, merge, publish, distribute, sublicense, and / or sell # copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions : # # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN # THE SOFTWARE. import re import requests import base64 from .NotifyBase import NotifyBase from ..URLBase import PrivacyMode from ..common import NotifyImageSize from ..common import NotifyType from ..AppriseLocale import gettext_lazy as _ # Defines the method to send the notification METHODS = ( 'POST', 'GET', 'DELETE', 'PUT', 'HEAD' ) class NotifyXML(NotifyBase): """ A wrapper for XML Notifications """ # The default descriptive name associated with the Notification service_name = 'XML' # The default protocol protocol = 'xml' # The default secure protocol secure_protocol = 'xmls' # A URL that takes you to the setup/help of the specific protocol setup_url = 'https://github.com/caronc/apprise/wiki/Notify_Custom_XML' # Allows the user to specify the NotifyImageSize object image_size = NotifyImageSize.XY_128 # Disable throttle rate for JSON requests since they are normally # local anyway request_rate_per_sec = 0 # XSD Information xsd_ver = '1.1' xsd_url = 'https://raw.githubusercontent.com/caronc/apprise/master' \ '/apprise/assets/NotifyXML-{version}.xsd' # 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], }, }) # 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, **kwargs): """ Initialize XML 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.payload = """ {{CORE}} {{ATTACHMENTS}} """ 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) 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_extras = {} if payload: # Store our extra payload entries (but tidy them up since they will # become XML Keys (they can't contain certain characters for k, v in payload.items(): key = re.sub(r'[^A-Za-z0-9_-]*', '', k) if not key: self.logger.warning( 'Ignoring invalid XML Stanza element name({})' .format(k)) continue self.payload_extras[key] = v 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()}) # Determine Authentication auth = '' if self.user and self.password: auth = '{user}:{password}@'.format( user=NotifyXML.quote(self.user, safe=''), password=self.pprint( self.password, privacy, mode=PrivacyMode.Secret, safe=''), ) elif self.user: auth = '{user}@'.format( user=NotifyXML.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=NotifyXML.quote(self.fullpath, safe='/') if self.fullpath else '/', params=NotifyXML.urlencode(params), ) def send(self, body, title='', notify_type=NotifyType.INFO, attach=None, **kwargs): """ Perform XML Notification """ # Prepare HTTP Headers headers = { 'User-Agent': self.app_id, 'Content-Type': 'application/xml' } # Apply any/all header over-rides defined headers.update(self.headers) # Our XML Attachmement subsitution xml_attachments = '' # Our Payload Base payload_base = { 'Version': self.xsd_ver, 'Subject': NotifyXML.escape_html(title, whitespace=False), 'MessageType': NotifyXML.escape_html( notify_type, whitespace=False), 'Message': NotifyXML.escape_html(body, whitespace=False), } # Apply our payload extras payload_base.update( {k: NotifyXML.escape_html(v, whitespace=False) for k, v in self.payload_extras.items()}) # Base Entres xml_base = ''.join( ['<{}>{}'.format(k, v, k) for k, v in payload_base.items()]) attachments = [] if attach: for attachment in attach: # 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: with open(attachment.path, 'rb') as f: # Prepare our Attachment in Base64 entry = \ ''.format( NotifyXML.escape_html( attachment.name, whitespace=False), NotifyXML.escape_html( attachment.mimetype, whitespace=False)) entry += base64.b64encode(f.read()).decode('utf-8') entry += '' attachments.append(entry) except (OSError, IOError) as e: self.logger.warning( 'An I/O error occurred while reading {}.'.format( attachment.name if attachment else 'attachment')) self.logger.debug('I/O Exception: %s' % str(e)) return False # Update our xml_attachments record: xml_attachments = \ '' + \ ''.join(attachments) + '' re_map = { '{{XSD_URL}}': self.xsd_url.format(version=self.xsd_ver), '{{ATTACHMENTS}}': xml_attachments, '{{CORE}}': xml_base, } # Iterate over above list and store content accordingly re_table = re.compile( r'(' + '|'.join(re_map.keys()) + r')', re.IGNORECASE, ) 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 payload = re_table.sub(lambda x: re_map[x.group()], self.payload) self.logger.debug('XML POST URL: %s (cert_verify=%r)' % ( url, self.verify_certificate, )) self.logger.debug('XML Payload: %s' % str(payload)) # Always call throttle before any remote server i/o is made self.throttle() if self.method == 'GET': method = requests.get elif self.method == 'PUT': method = requests.put elif self.method == 'DELETE': method = requests.delete elif self.method == 'HEAD': method = requests.head else: # POST method = requests.post try: r = method( url, data=payload, 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 = \ NotifyXML.http_response_code_lookup(r.status_code) self.logger.warning( 'Failed to send JSON %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 XML %s notification.', self.method) except requests.RequestException as e: self.logger.warning( 'A Connection error occurred sending XML ' 'notification to %s.' % self.host) self.logger.debug('Socket Exception: %s' % str(e)) # Return; we're done return False 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'] = {NotifyXML.unquote(x): NotifyXML.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'] = {NotifyXML.unquote(x): NotifyXML.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'] = {NotifyXML.unquote(x): NotifyXML.unquote(y) for x, y in results['qsd-'].items()} # Set method if not otherwise set if 'method' in results['qsd'] and len(results['qsd']['method']): results['method'] = NotifyXML.unquote(results['qsd']['method']) return results