# -*- coding: utf-8 -*- # BSD 3-Clause License # # Apprise - Push Notification Library. # Copyright (c) 2023, Chris Caron # # 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. # # 3. Neither the name of the copyright holder nor the names of its # contributors may be used to endorse or promote products derived from # this software without specific prior written permission. # # 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. # There are 2 ways to use this plugin... # Method 1: Via Webhook: # Visit https://my.slack.com/services/new/incoming-webhook/ # to create a new incoming webhook for your account. You'll need to # follow the wizard to pre-determine the channel(s) you want your # message to broadcast to, and when you're complete, you will # recieve a URL that looks something like this: # https://hooks.slack.com/services/T1JJ3T3L2/A1BRTD4JD/TIiajkdnlazkcOXrIdevi7 # ^ ^ ^ # | | | # These are important <--------------^---------^---------------^ # # Method 2: Via a Bot: # 1. visit: https://api.slack.com/apps?new_app=1 # 2. Pick an App Name (such as Apprise) and select your workspace. Then # press 'Create App' # 3. You'll be able to click on 'Bots' from here where you can then choose # to add a 'Bot User'. Give it a name and choose 'Add Bot User'. # 4. Now you can choose 'Install App' to which you can choose 'Install App # to Workspace'. # 5. You will need to authorize the app which you get prompted to do. # 6. Finally you'll get some important information providing you your # 'OAuth Access Token' and 'Bot User OAuth Access Token' such as: # slack://{Oauth Access Token} # # ... which might look something like: # slack://xoxp-1234-1234-1234-4ddbc191d40ee098cbaae6f3523ada2d # ... or: # slack://xoxb-1234-1234-4ddbc191d40ee098cbaae6f3523ada2d # # You must at least give your bot the following access for it to # be useful: # - chat:write - MUST be set otherwise you can not post into # a channel # - users:read.email - Required if you want to be able to lookup # users by their email address. # # The easiest way to bring a bot into a channel (so that it can send # a message to it is to invite it. At this time Apprise does not support # an auto-join functionality. To do this: # - In the 'Details' section of your channel # - Click on the 'More' [...] (elipse icon) # - Click 'Add apps' # - You will be able to select the Bot App you previously created # - Your bot will join your channel. import re import requests from json import dumps from json import loads from time import time from .NotifyBase import NotifyBase from ..common import NotifyImageSize from ..common import NotifyType from ..common import NotifyFormat from ..utils import is_email from ..utils import parse_bool from ..utils import parse_list from ..utils import validate_regex from ..AppriseLocale import gettext_lazy as _ # Extend HTTP Error Messages SLACK_HTTP_ERROR_MAP = { 401: 'Unauthorized - Invalid Token.', } # Used to break path apart into list of channels CHANNEL_LIST_DELIM = re.compile(r'[ \t\r\n,#\\/]+') class SlackMode: """ Tracks the mode of which we're using Slack """ # We're dealing with a webhook # Our token looks like: T1JJ3T3L2/A1BRTD4JD/TIiajkdnlazkcOXrIdevi7 WEBHOOK = 'webhook' # We're dealing with a bot (using the OAuth Access Token) # Our token looks like: xoxp-1234-1234-1234-abc124 or # Our token looks like: xoxb-1234-1234-abc124 or BOT = 'bot' # Define our Slack Modes SLACK_MODES = ( SlackMode.WEBHOOK, SlackMode.BOT, ) class NotifySlack(NotifyBase): """ A wrapper for Slack Notifications """ # The default descriptive name associated with the Notification service_name = 'Slack' # The services URL service_url = 'https://slack.com/' # The default secure protocol secure_protocol = 'slack' # Allow 50 requests per minute (Tier 2). # 60/50 = 0.2 request_rate_per_sec = 1.2 # A URL that takes you to the setup/help of the specific protocol setup_url = 'https://github.com/caronc/apprise/wiki/Notify_slack' # Slack Webhook URL webhook_url = 'https://hooks.slack.com/services' # Slack API URL (used with Bots) api_url = 'https://slack.com/api/{}' # Allows the user to specify the NotifyImageSize object image_size = NotifyImageSize.XY_72 # The maximum allowable characters allowed in the body per message body_maxlen = 35000 # Default Notification Format notify_format = NotifyFormat.MARKDOWN # Bot's do not have default channels to notify; so #general # becomes the default channel in BOT mode default_notification_channel = '#general' # Define object templates templates = ( # Webhook '{schema}://{token_a}/{token_b}{token_c}', '{schema}://{botname}@{token_a}/{token_b}{token_c}', '{schema}://{token_a}/{token_b}{token_c}/{targets}', '{schema}://{botname}@{token_a}/{token_b}{token_c}/{targets}', # Bot '{schema}://{access_token}/', '{schema}://{access_token}/{targets}', ) # Define our template tokens template_tokens = dict(NotifyBase.template_tokens, **{ 'botname': { 'name': _('Bot Name'), 'type': 'string', 'map_to': 'user', }, # Bot User OAuth Access Token # which always starts with xoxp- e.g.: # xoxb-1234-1234-4ddbc191d40ee098cbaae6f3523ada2d 'access_token': { 'name': _('OAuth Access Token'), 'type': 'string', 'private': True, 'required': True, 'regex': (r'^xox[abp]-[A-Z0-9-]+$', 'i'), }, # Token required as part of the Webhook request # /AAAAAAAAA/........./........................ 'token_a': { 'name': _('Token A'), 'type': 'string', 'private': True, 'required': True, 'regex': (r'^[A-Z0-9]+$', 'i'), }, # Token required as part of the Webhook request # /........./BBBBBBBBB/........................ 'token_b': { 'name': _('Token B'), 'type': 'string', 'private': True, 'required': True, 'regex': (r'^[A-Z0-9]+$', 'i'), }, # Token required as part of the Webhook request # /........./........./CCCCCCCCCCCCCCCCCCCCCCCC 'token_c': { 'name': _('Token C'), 'type': 'string', 'private': True, 'required': True, 'regex': (r'^[A-Za-z0-9]+$', 'i'), }, 'target_encoded_id': { 'name': _('Target Encoded ID'), 'type': 'string', 'prefix': '+', 'map_to': 'targets', }, 'target_email': { 'name': _('Target Email'), 'type': 'string', 'map_to': 'targets', }, 'target_user': { 'name': _('Target User'), 'type': 'string', 'prefix': '@', 'map_to': 'targets', }, 'target_channels': { 'name': _('Target Channel'), 'type': 'string', 'prefix': '#', 'map_to': 'targets', }, 'targets': { 'name': _('Targets'), 'type': 'list:string', }, }) # Define our template arguments template_args = dict(NotifyBase.template_args, **{ 'image': { 'name': _('Include Image'), 'type': 'bool', 'default': True, 'map_to': 'include_image', }, 'footer': { 'name': _('Include Footer'), 'type': 'bool', 'default': True, 'map_to': 'include_footer', }, # Use Payload in Blocks (vs legacy way): # See: https://api.slack.com/reference/messaging/payload 'blocks': { 'name': _('Use Blocks'), 'type': 'bool', 'default': False, 'map_to': 'use_blocks', }, 'to': { 'alias_of': 'targets', }, 'token': { 'name': _('Token'), 'alias_of': ('access_token', 'token_a', 'token_b', 'token_c'), }, }) def __init__(self, access_token=None, token_a=None, token_b=None, token_c=None, targets=None, include_image=True, include_footer=True, use_blocks=None, **kwargs): """ Initialize Slack Object """ super().__init__(**kwargs) # Setup our mode self.mode = SlackMode.BOT if access_token else SlackMode.WEBHOOK if self.mode is SlackMode.WEBHOOK: self.token_a = validate_regex( token_a, *self.template_tokens['token_a']['regex']) if not self.token_a: msg = 'An invalid Slack (first) Token ' \ '({}) was specified.'.format(token_a) self.logger.warning(msg) raise TypeError(msg) self.token_b = validate_regex( token_b, *self.template_tokens['token_b']['regex']) if not self.token_b: msg = 'An invalid Slack (second) Token ' \ '({}) was specified.'.format(token_b) self.logger.warning(msg) raise TypeError(msg) self.token_c = validate_regex( token_c, *self.template_tokens['token_c']['regex']) if not self.token_c: msg = 'An invalid Slack (third) Token ' \ '({}) was specified.'.format(token_c) self.logger.warning(msg) raise TypeError(msg) else: self.access_token = validate_regex( access_token, *self.template_tokens['access_token']['regex']) if not self.access_token: msg = 'An invalid Slack OAuth Access Token ' \ '({}) was specified.'.format(access_token) self.logger.warning(msg) raise TypeError(msg) # Look the users up by their email address and map them back to their # id here for future queries (if needed). This allows people to # specify a full email as a recipient via slack self._lookup_users = {} self.use_blocks = parse_bool( use_blocks, self.template_args['blocks']['default']) \ if use_blocks is not None \ else self.template_args['blocks']['default'] # Build list of channels self.channels = parse_list(targets) if len(self.channels) == 0: # No problem; the webhook is smart enough to just notify the # channel it was created for; adding 'None' is just used as # a flag lower to not set the channels self.channels.append( None if self.mode is SlackMode.WEBHOOK else self.default_notification_channel) # Formatting requirements are defined here: # https://api.slack.com/docs/message-formatting self._re_formatting_map = { # New lines must become the string version r'\r\*\n': '\\n', # Escape other special characters r'&': '&', r'<': '<', r'>': '>', } # The markdown in slack isn't [desc](url), it's # # To accomodate this, we need to ensure we don't escape URLs that match self._re_url_support = re.compile( r'(?P(?:<|\<)?[ \t]*' r'(?P(?:https?|mailto)://[^| \n]+)' r'(?:[ \t]*\|[ \t]*(?:(?P[^\n]+?)[ \t]*)?(?:>|\>)' r'|(?:>|\>)))', re.IGNORECASE) # Iterate over above list and store content accordingly self._re_formatting_rules = re.compile( r'(' + '|'.join(self._re_formatting_map.keys()) + r')', re.IGNORECASE, ) # Place a thumbnail image inline with the message body self.include_image = include_image # Place a footer with each post self.include_footer = include_footer return def send(self, body, title='', notify_type=NotifyType.INFO, attach=None, **kwargs): """ Perform Slack Notification """ # error tracking (used for function return) has_error = False # # Prepare JSON Object (applicable to both WEBHOOK and BOT mode) # if self.use_blocks: # Our slack format _slack_format = 'mrkdwn' \ if self.notify_format == NotifyFormat.MARKDOWN \ else 'plain_text' payload = { 'username': self.user if self.user else self.app_id, 'attachments': [{ 'blocks': [{ 'type': 'section', 'text': { 'type': _slack_format, 'text': body } }], 'color': self.color(notify_type), }] } # Slack only accepts non-empty header sections if title: payload['attachments'][0]['blocks'].insert(0, { 'type': 'header', 'text': { 'type': 'plain_text', 'text': title, 'emoji': True } }) # Include the footer only if specified to do so if self.include_footer: # Acquire our to-be footer icon if configured to do so image_url = None if not self.include_image \ else self.image_url(notify_type) # Prepare our footer based on the block structure _footer = { 'type': 'context', 'elements': [{ 'type': _slack_format, 'text': self.app_id }] } if image_url: payload['icon_url'] = image_url _footer['elements'].insert(0, { 'type': 'image', 'image_url': image_url, 'alt_text': notify_type }) payload['attachments'][0]['blocks'].append(_footer) else: # # Legacy API Formatting # if self.notify_format == NotifyFormat.MARKDOWN: body = self._re_formatting_rules.sub( # pragma: no branch lambda x: self._re_formatting_map[x.group()], body, ) # Support , entries for match in self._re_url_support.findall(body): # Swap back any ampersands previously updaated url = match[1].replace('&', '&') desc = match[2].strip() # Update our string body = re.sub( re.escape(match[0]), '<{url}|{desc}>'.format(url=url, desc=desc) if desc else '<{url}>'.format(url=url), body, re.IGNORECASE) # Perform Formatting on title here; this is not needed for block # mode above title = self._re_formatting_rules.sub( # pragma: no branch lambda x: self._re_formatting_map[x.group()], title, ) # Prepare JSON Object (applicable to both WEBHOOK and BOT mode) payload = { 'username': self.user if self.user else self.app_id, # Use Markdown language 'mrkdwn': (self.notify_format == NotifyFormat.MARKDOWN), 'attachments': [{ 'title': title, 'text': body, 'color': self.color(notify_type), # Time 'ts': time(), }], } # Acquire our to-be footer icon if configured to do so image_url = None if not self.include_image \ else self.image_url(notify_type) if image_url: payload['icon_url'] = image_url # Include the footer only if specified to do so if self.include_footer: if image_url: payload['attachments'][0]['footer_icon'] = image_url # Include the footer only if specified to do so payload['attachments'][0]['footer'] = self.app_id if attach and self.mode is SlackMode.WEBHOOK: # Be friendly; let the user know why they can't send their # attachments if using the Webhook mode self.logger.warning( 'Slack Webhooks do not support attachments.') # Prepare our Slack URL (depends on mode) if self.mode is SlackMode.WEBHOOK: url = '{}/{}/{}/{}'.format( self.webhook_url, self.token_a, self.token_b, self.token_c, ) else: # SlackMode.BOT url = self.api_url.format('chat.postMessage') # Create a copy of the channel list channels = list(self.channels) attach_channel_list = [] while len(channels): channel = channels.pop(0) if channel is not None: channel = validate_regex(channel, r'[+#@]?[A-Z0-9_]{1,32}') if not channel: # Channel over-ride was specified self.logger.warning( "The specified target {} is invalid;" "skipping.".format(channel)) # Mark our failure has_error = True continue if channel[0] == '+': # Treat as encoded id if prefixed with a + payload['channel'] = channel[1:] elif channel[0] == '@': # Treat @ value 'as is' payload['channel'] = channel else: # We'll perform a user lookup if we detect an email email = is_email(channel) if email: payload['channel'] = \ self.lookup_userid(email['full_email']) if not payload['channel']: # Move along; any notifications/logging would have # come from lookup_userid() has_error = True continue else: # Prefix with channel hash tag (if not already) payload['channel'] = \ channel if channel[0] == '#' \ else '#{}'.format(channel) # Store the valid and massaged payload that is recognizable by # slack. This list is used for sending attachments later. attach_channel_list.append(payload['channel']) response = self._send(url, payload) if not response: # Handle any error has_error = True continue self.logger.info( 'Sent Slack notification{}.'.format( ' to {}'.format(channel) if channel is not None else '')) if attach and self.mode is SlackMode.BOT and attach_channel_list: # Send our attachments (can only be done in bot mode) 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 self.logger.debug( 'Posting Slack attachment {}'.format( attachment.url(privacy=True))) # Prepare API Upload Payload _payload = { 'filename': attachment.name, 'channels': ','.join(attach_channel_list) } # Our URL _url = self.api_url.format('files.upload') response = self._send(_url, _payload, attach=attachment) if not (response and response.get('file') and response['file'].get('url_private')): # We failed to post our attachments, take an early exit return False return not has_error def lookup_userid(self, email): """ Takes an email address and attempts to resolve/acquire it's user id for notification purposes. """ if email in self._lookup_users: # We're done as entry has already been retrieved return self._lookup_users[email] if self.mode is not SlackMode.BOT: # You can not look up self.logger.warning( 'Emails can not be resolved to Slack User IDs unless you ' 'have a bot configured.') return None lookup_url = self.api_url.format('users.lookupByEmail') headers = { 'User-Agent': self.app_id, 'Content-Type': 'application/x-www-form-urlencoded', 'Authorization': 'Bearer {}'.format(self.access_token), } # we pass in our email address as the argument params = { 'email': email, } self.logger.debug('Slack User Lookup POST URL: %s (cert_verify=%r)' % ( lookup_url, self.verify_certificate, )) self.logger.debug('Slack User Lookup Parameters: %s' % str(params)) # Initialize our HTTP JSON response response = {'ok': False} # Initialize our detected user id (also the response to this function) user_id = None # Always call throttle before any remote server i/o is made self.throttle() try: r = requests.get( lookup_url, headers=headers, params=params, verify=self.verify_certificate, timeout=self.request_timeout, ) # Attachment posts return a JSON string try: response = loads(r.content) except (AttributeError, TypeError, ValueError): # ValueError = r.content is Unparsable # TypeError = r.content is None # AttributeError = r is None pass # We can get a 200 response, but still fail. A failure message # might look like this (missing bot permissions): # { # 'ok': False, # 'error': 'missing_scope', # 'needed': 'users:read.email', # 'provided': 'calls:write,chat:write' # } if r.status_code != requests.codes.ok \ or not (response and response.get('ok', False)): # We had a problem status_str = \ NotifySlack.http_response_code_lookup( r.status_code, SLACK_HTTP_ERROR_MAP) self.logger.warning( 'Failed to send Slack User Lookup:' '{}{}error={}.'.format( status_str, ', ' if status_str else '', r.status_code)) self.logger.debug('Response Details:\r\n{}'.format(r.content)) # Return; we're done return False # If we reach here, then we were successful in looking up # the user. A response generally looks like this: # { # 'ok': True, # 'user': { # 'id': 'J1ZQB9T9Y', # 'team_id': 'K1WR6TML2', # 'name': 'l2g', # 'deleted': False, # 'color': '9f69e7', # 'real_name': 'Chris C', # 'tz': 'America/New_York', # 'tz_label': 'Eastern Standard Time', # 'tz_offset': -18000, # 'profile': { # 'title': '', # 'phone': '', # 'skype': '', # 'real_name': 'Chris C', # 'real_name_normalized': # 'Chris C', # 'display_name': 'l2g', # 'display_name_normalized': 'l2g', # 'fields': None, # 'status_text': '', # 'status_emoji': '', # 'status_expiration': 0, # 'avatar_hash': 'g785e9c0ddf6', # 'email': 'lead2gold@gmail.com', # 'first_name': 'Chris', # 'last_name': 'C', # 'image_24': 'https://secure.gravatar.com/...', # 'image_32': 'https://secure.gravatar.com/...', # 'image_48': 'https://secure.gravatar.com/...', # 'image_72': 'https://secure.gravatar.com/...', # 'image_192': 'https://secure.gravatar.com/...', # 'image_512': 'https://secure.gravatar.com/...', # 'status_text_canonical': '', # 'team': 'K1WR6TML2' # }, # 'is_admin': True, # 'is_owner': True, # 'is_primary_owner': True, # 'is_restricted': False, # 'is_ultra_restricted': False, # 'is_bot': False, # 'is_app_user': False, # 'updated': 1603904274 # } # } # We're only interested in the id user_id = response['user']['id'] # Cache it for future self._lookup_users[email] = user_id self.logger.info( 'Email %s resolves to the Slack User ID: %s.', email, user_id) except requests.RequestException as e: self.logger.warning( 'A Connection error occurred looking up Slack User.', ) self.logger.debug('Socket Exception: %s' % str(e)) # Return; we're done return None return user_id def _send(self, url, payload, attach=None, **kwargs): """ Wrapper to the requests (post) object """ self.logger.debug('Slack POST URL: %s (cert_verify=%r)' % ( url, self.verify_certificate, )) self.logger.debug('Slack Payload: %s' % str(payload)) headers = { 'User-Agent': self.app_id, 'Accept': 'application/json', } if not attach: headers['Content-Type'] = 'application/json; charset=utf-8' if self.mode is SlackMode.BOT: headers['Authorization'] = 'Bearer {}'.format(self.access_token) # Our response object response = {'ok': False} # Always call throttle before any remote server i/o is made self.throttle() # Our attachment path (if specified) files = None try: # Open our attachment path if required: if attach: files = {'file': (attach.name, open(attach.path, 'rb'))} r = requests.post( url, data=payload if attach else dumps(payload), headers=headers, files=files, verify=self.verify_certificate, timeout=self.request_timeout, ) # Posts return a JSON string try: response = loads(r.content) except (AttributeError, TypeError, ValueError): # ValueError = r.content is Unparsable # TypeError = r.content is None # AttributeError = r is None pass # Another response type is: # { # 'ok': False, # 'error': 'not_in_channel', # } # # The text 'ok' is returned if this is a Webhook request # So the below captures that as well. status_okay = (response and response.get('ok', False)) \ if self.mode is SlackMode.BOT else r.content == b'ok' if r.status_code != requests.codes.ok or not status_okay: # We had a problem status_str = \ NotifySlack.http_response_code_lookup( r.status_code, SLACK_HTTP_ERROR_MAP) self.logger.warning( 'Failed to send {}to Slack: ' '{}{}error={}.'.format( attach.name if attach else '', status_str, ', ' if status_str else '', r.status_code)) self.logger.debug( 'Response Details:\r\n{}'.format(r.content)) return False # Message Post Response looks like this: # { # "attachments": [ # { # "color": "3AA3E3", # "fallback": "test", # "id": 1, # "text": "my body", # "title": "my title", # "ts": 1573694687 # } # ], # "bot_id": "BAK4K23G5", # "icons": { # "image_48": "https://s3-us-west-2.amazonaws.com/... # }, # "subtype": "bot_message", # "text": "", # "ts": "1573694689.003700", # "type": "message", # "username": "Apprise" # } # File Attachment Responses look like this # { # "file": { # "channels": [], # "comments_count": 0, # "created": 1573617523, # "display_as_bot": false, # "editable": false, # "external_type": "", # "filetype": "png", # "groups": [], # "has_rich_preview": false, # "id": "FQJJLDAHM", # "image_exif_rotation": 1, # "ims": [], # "is_external": false, # "is_public": false, # "is_starred": false, # "mimetype": "image/png", # "mode": "hosted", # "name": "apprise-test.png", # "original_h": 640, # "original_w": 640, # "permalink": "https://{name}.slack.com/files/... # "permalink_public": "https://slack-files.com/... # "pretty_type": "PNG", # "public_url_shared": false, # "shares": {}, # "size": 238810, # "thumb_160": "https://files.slack.com/files-tmb/... # "thumb_360": "https://files.slack.com/files-tmb/... # "thumb_360_h": 360, # "thumb_360_w": 360, # "thumb_480": "https://files.slack.com/files-tmb/... # "thumb_480_h": 480, # "thumb_480_w": 480, # "thumb_64": "https://files.slack.com/files-tmb/... # "thumb_80": "https://files.slack.com/files-tmb/... # "thumb_tiny": abcd... # "timestamp": 1573617523, # "title": "apprise-test", # "url_private": "https://files.slack.com/files-pri/... # "url_private_download": "https://files.slack.com/files-... # "user": "UADKLLMJT", # "username": "" # }, # "ok": true # } except requests.RequestException as e: self.logger.warning( 'A Connection error occurred posting {}to Slack.'.format( attach.name if attach else '')) self.logger.debug('Socket Exception: %s' % str(e)) return False except (OSError, IOError) as e: self.logger.warning( 'An I/O error occurred while reading {}.'.format( attach.name if attach else 'attachment')) self.logger.debug('I/O Exception: %s' % str(e)) return False finally: # Close our file (if it's open) stored in the second element # of our files tuple (index 1) if files: files['file'][1].close() # Return the response for processing return response def url(self, privacy=False, *args, **kwargs): """ Returns the URL built dynamically based on specified arguments. """ # Define any URL parameters params = { 'image': 'yes' if self.include_image else 'no', 'footer': 'yes' if self.include_footer else 'no', 'blocks': 'yes' if self.use_blocks else 'no', } # Extend our parameters params.update(self.url_parameters(privacy=privacy, *args, **kwargs)) # Determine if there is a botname present botname = '' if self.user: botname = '{botname}@'.format( botname=NotifySlack.quote(self.user, safe=''), ) if self.mode == SlackMode.WEBHOOK: return '{schema}://{botname}{token_a}/{token_b}/{token_c}/'\ '{targets}/?{params}'.format( schema=self.secure_protocol, botname=botname, token_a=self.pprint(self.token_a, privacy, safe=''), token_b=self.pprint(self.token_b, privacy, safe=''), token_c=self.pprint(self.token_c, privacy, safe=''), targets='/'.join( [NotifySlack.quote(x, safe='') for x in self.channels]), params=NotifySlack.urlencode(params), ) # else -> self.mode == SlackMode.BOT: return '{schema}://{botname}{access_token}/{targets}/'\ '?{params}'.format( schema=self.secure_protocol, botname=botname, access_token=self.pprint(self.access_token, privacy, safe=''), targets='/'.join( [NotifySlack.quote(x, safe='') for x in self.channels]), params=NotifySlack.urlencode(params), ) @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, verify_host=False) if not results: # We're done early as we couldn't load the results return results # The first token is stored in the hostname token = NotifySlack.unquote(results['host']) # Get unquoted entries entries = NotifySlack.split_path(results['fullpath']) # Verify if our token_a us a bot token or part of a webhook: if token.startswith('xo'): # We're dealing with a bot results['access_token'] = token else: # We're dealing with a webhook results['token_a'] = token results['token_b'] = entries.pop(0) if entries else None results['token_c'] = entries.pop(0) if entries else None # assign remaining entries to the channels we wish to notify results['targets'] = entries # Support the token flag where you can set it to the bot token # or the webhook token (with slash delimiters) if 'token' in results['qsd'] and len(results['qsd']['token']): # Break our entries up into a list; we can ue the Channel # list delimiter above since it doesn't contain any characters # we don't otherwise accept anyway in our token entries = [x for x in filter( bool, CHANNEL_LIST_DELIM.split( NotifySlack.unquote(results['qsd']['token'])))] # check to see if we're dealing with a bot/user token if entries and entries[0].startswith('xo'): # We're dealing with a bot results['access_token'] = entries[0] results['token_a'] = None results['token_b'] = None results['token_c'] = None else: # Webhook results['access_token'] = None results['token_a'] = entries.pop(0) if entries else None results['token_b'] = entries.pop(0) if entries else None results['token_c'] = entries.pop(0) if entries else None # Support the 'to' variable so that we can support rooms this way too # The 'to' makes it easier to use yaml configuration if 'to' in results['qsd'] and len(results['qsd']['to']): results['targets'] += [x for x in filter( bool, CHANNEL_LIST_DELIM.split( NotifySlack.unquote(results['qsd']['to'])))] # Get Image Flag results['include_image'] = \ parse_bool(results['qsd'].get('image', True)) # Get Payload structure (use blocks?) if 'blocks' in results['qsd'] and len(results['qsd']['blocks']): results['use_blocks'] = parse_bool(results['qsd']['blocks']) # Get Footer Flag results['include_footer'] = \ parse_bool(results['qsd'].get('footer', True)) return results @staticmethod def parse_native_url(url): """ Support https://hooks.slack.com/services/TOKEN_A/TOKEN_B/TOKEN_C """ result = re.match( r'^https?://hooks\.slack\.com/services/' r'(?P[A-Z0-9]+)/' r'(?P[A-Z0-9]+)/' r'(?P[A-Z0-9]+)/?' r'(?P\?.+)?$', url, re.I) if result: return NotifySlack.parse_url( '{schema}://{token_a}/{token_b}/{token_c}/{params}'.format( schema=NotifySlack.secure_protocol, token_a=result.group('token_a'), token_b=result.group('token_b'), token_c=result.group('token_c'), params='' if not result.group('params') else result.group('params'))) return None