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763 lines
25 KiB
763 lines
25 KiB
# -*- coding: utf-8 -*-
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# BSD 2-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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# 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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# 1. Visit https://www.reddit.com/prefs/apps and scroll to the bottom
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# 2. Click on the button that reads 'are you a developer? create an app...'
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# 3. Set the mode to `script`,
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# 4. Provide a `name`, `description`, `redirect uri` and save it.
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# 5. Once the bot is saved, you'll be given a ID (next to the the bot name)
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# and a Secret.
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# The App ID will look something like this: YWARPXajkk645m
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# The App Secret will look something like this: YZGKc5YNjq3BsC-bf7oBKalBMeb1xA
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# The App will also have a location where you can identify the users
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# who have access (identified as Developers) to the app itself. You will
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# additionally need these credentials authenticate with.
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# With this information you'll be able to form the URL:
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# reddit://{user}:{password}@{app_id}/{app_secret}
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# All of the documentation needed to work with the Reddit API can be found
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# here:
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# - https://www.reddit.com/dev/api/
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# - https://www.reddit.com/dev/api/#POST_api_submit
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# - https://github.com/reddit-archive/reddit/wiki/API
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import requests
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from json import loads
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from datetime import timedelta
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from datetime import datetime
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from datetime import timezone
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from .NotifyBase import NotifyBase
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from ..URLBase import PrivacyMode
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from ..common import NotifyFormat
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from ..common import NotifyType
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from ..utils import parse_list
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from ..utils import parse_bool
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from ..utils import validate_regex
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from ..AppriseLocale import gettext_lazy as _
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from .. import __title__, __version__
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# Extend HTTP Error Messages
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REDDIT_HTTP_ERROR_MAP = {
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401: 'Unauthorized - Invalid Token',
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}
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class RedditMessageKind:
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"""
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Define the kinds of messages supported
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"""
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# Attempt to auto-detect the type prior to passing along the message to
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# Reddit
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AUTO = 'auto'
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# A common message
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SELF = 'self'
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# A Hyperlink
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LINK = 'link'
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REDDIT_MESSAGE_KINDS = (
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RedditMessageKind.AUTO,
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RedditMessageKind.SELF,
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RedditMessageKind.LINK,
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)
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class NotifyReddit(NotifyBase):
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"""
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A wrapper for Notify Reddit Notifications
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"""
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# The default descriptive name associated with the Notification
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service_name = 'Reddit'
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# The services URL
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service_url = 'https://reddit.com'
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# The default secure protocol
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secure_protocol = 'reddit'
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# A URL that takes you to the setup/help of the specific protocol
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setup_url = 'https://github.com/caronc/apprise/wiki/Notify_reddit'
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# The maximum size of the message
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body_maxlen = 6000
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# Maximum title length as defined by the Reddit API
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title_maxlen = 300
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# Default to markdown
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notify_format = NotifyFormat.MARKDOWN
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# The default Notification URL to use
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auth_url = 'https://www.reddit.com/api/v1/access_token'
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submit_url = 'https://oauth.reddit.com/api/submit'
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# Reddit is kind enough to return how many more requests we're allowed to
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# continue to make within it's header response as:
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# X-RateLimit-Reset: The epoc time (in seconds) we can expect our
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# rate-limit to be reset.
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# X-RateLimit-Remaining: an integer identifying how many requests we're
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# still allow to make.
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request_rate_per_sec = 0
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# Taken right from google.auth.helpers:
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clock_skew = timedelta(seconds=10)
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# 1 hour in seconds (the lifetime of our token)
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access_token_lifetime_sec = timedelta(seconds=3600)
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# Define object templates
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templates = (
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'{schema}://{user}:{password}@{app_id}/{app_secret}/{targets}',
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)
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# Define our template arguments
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template_tokens = dict(NotifyBase.template_tokens, **{
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'user': {
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'name': _('User Name'),
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'type': 'string',
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'required': True,
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},
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'password': {
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'name': _('Password'),
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'type': 'string',
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'private': True,
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'required': True,
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},
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'app_id': {
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'name': _('Application ID'),
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'type': 'string',
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'private': True,
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'required': True,
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'regex': (r'^[a-z0-9_-]+$', 'i'),
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},
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'app_secret': {
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'name': _('Application Secret'),
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'type': 'string',
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'private': True,
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'required': True,
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'regex': (r'^[a-z0-9_-]+$', 'i'),
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},
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'target_subreddit': {
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'name': _('Target Subreddit'),
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'type': 'string',
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'map_to': 'targets',
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},
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'targets': {
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'name': _('Targets'),
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'type': 'list:string',
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'required': True,
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},
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})
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# Define our template arguments
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template_args = dict(NotifyBase.template_args, **{
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'to': {
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'alias_of': 'targets',
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},
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'kind': {
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'name': _('Kind'),
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'type': 'choice:string',
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'values': REDDIT_MESSAGE_KINDS,
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'default': RedditMessageKind.AUTO,
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},
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'flair_id': {
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'name': _('Flair ID'),
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'type': 'string',
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'map_to': 'flair_id',
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},
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'flair_text': {
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'name': _('Flair Text'),
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'type': 'string',
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'map_to': 'flair_text',
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},
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'nsfw': {
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'name': _('NSFW'),
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'type': 'bool',
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'default': False,
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'map_to': 'nsfw',
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},
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'ad': {
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'name': _('Is Ad?'),
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'type': 'bool',
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'default': False,
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'map_to': 'advertisement',
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},
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'replies': {
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'name': _('Send Replies'),
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'type': 'bool',
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'default': True,
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'map_to': 'sendreplies',
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},
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'spoiler': {
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'name': _('Is Spoiler'),
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'type': 'bool',
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'default': False,
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'map_to': 'spoiler',
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},
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'resubmit': {
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'name': _('Resubmit Flag'),
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'type': 'bool',
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'default': False,
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'map_to': 'resubmit',
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},
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})
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def __init__(self, app_id=None, app_secret=None, targets=None,
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kind=None, nsfw=False, sendreplies=True, resubmit=False,
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spoiler=False, advertisement=False,
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flair_id=None, flair_text=None, **kwargs):
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"""
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Initialize Notify Reddit Object
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"""
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super().__init__(**kwargs)
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# Initialize subreddit list
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self.subreddits = set()
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# Not Safe For Work Flag
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self.nsfw = nsfw
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# Send Replies Flag
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self.sendreplies = sendreplies
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# Is Spoiler Flag
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self.spoiler = spoiler
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# Resubmit Flag
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self.resubmit = resubmit
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# Is Ad?
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self.advertisement = advertisement
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# Flair details
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self.flair_id = flair_id
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self.flair_text = flair_text
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# Our keys we build using the provided content
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self.__refresh_token = None
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self.__access_token = None
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self.__access_token_expiry = datetime.now(timezone.utc)
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self.kind = kind.strip().lower() \
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if isinstance(kind, str) \
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else self.template_args['kind']['default']
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if self.kind not in REDDIT_MESSAGE_KINDS:
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msg = 'An invalid Reddit message kind ({}) was specified'.format(
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kind)
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self.logger.warning(msg)
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raise TypeError(msg)
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self.user = validate_regex(self.user)
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if not self.user:
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msg = 'An invalid Reddit User ID ' \
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'({}) was specified'.format(self.user)
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self.logger.warning(msg)
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raise TypeError(msg)
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self.password = validate_regex(self.password)
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if not self.password:
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msg = 'An invalid Reddit Password ' \
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'({}) was specified'.format(self.password)
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self.logger.warning(msg)
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raise TypeError(msg)
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self.client_id = validate_regex(
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app_id, *self.template_tokens['app_id']['regex'])
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if not self.client_id:
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msg = 'An invalid Reddit App ID ' \
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'({}) was specified'.format(app_id)
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self.logger.warning(msg)
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raise TypeError(msg)
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self.client_secret = validate_regex(
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app_secret, *self.template_tokens['app_secret']['regex'])
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if not self.client_secret:
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msg = 'An invalid Reddit App Secret ' \
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'({}) was specified'.format(app_secret)
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self.logger.warning(msg)
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raise TypeError(msg)
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# Build list of subreddits
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self.subreddits = [
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sr.lstrip('#') for sr in parse_list(targets) if sr.lstrip('#')]
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if not self.subreddits:
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self.logger.warning(
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'No subreddits were identified to be notified')
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# For Rate Limit Tracking Purposes
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self.ratelimit_reset = datetime.now(timezone.utc).replace(tzinfo=None)
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# Default to 1.0
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self.ratelimit_remaining = 1.0
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return
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def url(self, privacy=False, *args, **kwargs):
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"""
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Returns the URL built dynamically based on specified arguments.
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"""
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# Define any URL parameters
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params = {
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'kind': self.kind,
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'ad': 'yes' if self.advertisement else 'no',
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'nsfw': 'yes' if self.nsfw else 'no',
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'resubmit': 'yes' if self.resubmit else 'no',
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'replies': 'yes' if self.sendreplies else 'no',
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'spoiler': 'yes' if self.spoiler else 'no',
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}
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# Flair support
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if self.flair_id:
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params['flair_id'] = self.flair_id
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if self.flair_text:
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params['flair_text'] = self.flair_text
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# Extend our parameters
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params.update(self.url_parameters(privacy=privacy, *args, **kwargs))
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return '{schema}://{user}:{password}@{app_id}/{app_secret}' \
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'/{targets}/?{params}'.format(
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schema=self.secure_protocol,
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user=NotifyReddit.quote(self.user, safe=''),
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password=self.pprint(
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self.password, privacy, mode=PrivacyMode.Secret, safe=''),
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app_id=self.pprint(
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self.client_id, privacy, mode=PrivacyMode.Secret, safe=''),
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app_secret=self.pprint(
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self.client_secret, privacy, mode=PrivacyMode.Secret,
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safe=''),
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targets='/'.join(
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[NotifyReddit.quote(x, safe='') for x in self.subreddits]),
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params=NotifyReddit.urlencode(params),
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)
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def __len__(self):
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"""
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Returns the number of targets associated with this notification
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"""
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return len(self.subreddits)
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def login(self):
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"""
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A simple wrapper to authenticate with the Reddit Server
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"""
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# Prepare our payload
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payload = {
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'grant_type': 'password',
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'username': self.user,
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'password': self.password,
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}
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# Enforce a False flag setting before calling _fetch()
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self.__access_token = False
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# Send Login Information
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postokay, response = self._fetch(
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self.auth_url,
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payload=payload,
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)
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if not postokay or not response:
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# Setting this variable to False as a way of letting us know
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# we failed to authenticate on our last attempt
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self.__access_token = False
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return False
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# Our response object looks like this (content has been altered for
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# presentation purposes):
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# {
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# "access_token": Your access token,
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# "token_type": "bearer",
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# "expires_in": Unix Epoch Seconds,
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# "scope": A scope string,
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# "refresh_token": Your refresh token
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# }
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# Acquire our token
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self.__access_token = response.get('access_token')
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# Handle other optional arguments we can use
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if 'expires_in' in response:
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delta = timedelta(seconds=int(response['expires_in']))
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self.__access_token_expiry = \
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delta + datetime.now(timezone.utc) - self.clock_skew
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else:
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self.__access_token_expiry = self.access_token_lifetime_sec + \
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datetime.now(timezone.utc) - self.clock_skew
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# The Refresh Token
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self.__refresh_token = response.get(
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'refresh_token', self.__refresh_token)
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if self.__access_token:
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self.logger.info('Authenticated to Reddit as {}'.format(self.user))
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return True
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self.logger.warning(
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'Failed to authenticate to Reddit as {}'.format(self.user))
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# Mark our failure
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return False
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def send(self, body, title='', notify_type=NotifyType.INFO, **kwargs):
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"""
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Perform Reddit Notification
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"""
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# error tracking (used for function return)
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has_error = False
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if not self.__access_token and not self.login():
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# We failed to authenticate - we're done
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return False
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if not len(self.subreddits):
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# We have nothing to notify; we're done
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self.logger.warning('There are no Reddit targets to notify')
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return False
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# Prepare our Message Type/Kind
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if self.kind == RedditMessageKind.AUTO:
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parsed = NotifyBase.parse_url(body)
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# Detect a link
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if parsed and parsed.get('schema', '').startswith('http') \
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and parsed.get('host'):
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kind = RedditMessageKind.LINK
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else:
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kind = RedditMessageKind.SELF
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else:
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kind = self.kind
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# Create a copy of the subreddits list
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subreddits = list(self.subreddits)
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while len(subreddits) > 0:
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# Retrieve our subreddit
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subreddit = subreddits.pop()
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# Prepare our payload
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payload = {
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'ad': True if self.advertisement else False,
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'api_type': 'json',
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'extension': 'json',
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'sr': subreddit,
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'title': title if title else self.app_desc,
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'kind': kind,
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'nsfw': True if self.nsfw else False,
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'resubmit': True if self.resubmit else False,
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'sendreplies': True if self.sendreplies else False,
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'spoiler': True if self.spoiler else False,
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}
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if self.flair_id:
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payload['flair_id'] = self.flair_id
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if self.flair_text:
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payload['flair_text'] = self.flair_text
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if kind == RedditMessageKind.LINK:
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payload.update({
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'url': body,
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})
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else:
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payload.update({
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'text': body,
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})
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postokay, response = self._fetch(self.submit_url, payload=payload)
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# only toggle has_error flag if we had an error
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if not postokay:
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# Mark our failure
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has_error = True
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continue
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# If we reach here, we were successful
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self.logger.info(
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'Sent Reddit notification to {}'.format(
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subreddit))
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return not has_error
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def _fetch(self, url, payload=None):
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"""
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Wrapper to Reddit API requests object
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"""
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# use what was specified, otherwise build headers dynamically
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headers = {
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'User-Agent': '{} v{}'.format(__title__, __version__)
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}
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if self.__access_token:
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# Set our token
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headers['Authorization'] = 'Bearer {}'.format(self.__access_token)
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# Prepare our url
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url = self.submit_url if self.__access_token else self.auth_url
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# Some Debug Logging
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self.logger.debug('Reddit POST URL: {} (cert_verify={})'.format(
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url, self.verify_certificate))
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self.logger.debug('Reddit Payload: %s' % str(payload))
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# By default set wait to None
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wait = None
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if self.ratelimit_remaining <= 0.0:
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# Determine how long we should wait for or if we should wait at
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# all. This isn't fool-proof because we can't be sure the client
|
|
# time (calling this script) is completely synced up with the
|
|
# Reddit server. One would hope we're on NTP and our clocks are
|
|
# the same allowing this to role smoothly:
|
|
|
|
now = datetime.now(timezone.utc).replace(tzinfo=None)
|
|
if now < self.ratelimit_reset:
|
|
# We need to throttle for the difference in seconds
|
|
wait = abs(
|
|
(self.ratelimit_reset - now + self.clock_skew)
|
|
.total_seconds())
|
|
|
|
# Always call throttle before any remote server i/o is made;
|
|
self.throttle(wait=wait)
|
|
|
|
# Initialize a default value for our content value
|
|
content = {}
|
|
|
|
# acquire our request mode
|
|
try:
|
|
r = requests.post(
|
|
url,
|
|
data=payload,
|
|
auth=None if self.__access_token
|
|
else (self.client_id, self.client_secret),
|
|
headers=headers,
|
|
verify=self.verify_certificate,
|
|
timeout=self.request_timeout,
|
|
)
|
|
|
|
# We attempt to login again and retry the original request
|
|
# if we aren't in the process of handling a login already
|
|
if r.status_code != requests.codes.ok \
|
|
and self.__access_token and url != self.auth_url:
|
|
|
|
# We had a problem
|
|
status_str = \
|
|
NotifyReddit.http_response_code_lookup(
|
|
r.status_code, REDDIT_HTTP_ERROR_MAP)
|
|
|
|
self.logger.debug(
|
|
'Taking countermeasures after failed to send to Reddit '
|
|
'{}: {}error={}'.format(
|
|
url,
|
|
', ' if status_str else '',
|
|
r.status_code))
|
|
|
|
self.logger.debug(
|
|
'Response Details:\r\n{}'.format(r.content))
|
|
|
|
# We failed to authenticate with our token; login one more
|
|
# time and retry this original request
|
|
if not self.login():
|
|
return (False, {})
|
|
|
|
# Try again
|
|
r = requests.post(
|
|
url,
|
|
data=payload,
|
|
headers=headers,
|
|
verify=self.verify_certificate,
|
|
timeout=self.request_timeout
|
|
)
|
|
|
|
# Get our JSON content if it's possible
|
|
try:
|
|
content = loads(r.content)
|
|
|
|
except (TypeError, ValueError, AttributeError):
|
|
# TypeError = r.content is not a String
|
|
# ValueError = r.content is Unparsable
|
|
# AttributeError = r.content is None
|
|
|
|
# We had a problem
|
|
status_str = \
|
|
NotifyReddit.http_response_code_lookup(
|
|
r.status_code, REDDIT_HTTP_ERROR_MAP)
|
|
|
|
# Reddit always returns a JSON response
|
|
self.logger.warning(
|
|
'Failed to send to Reddit after countermeasures {}: '
|
|
'{}error={}'.format(
|
|
url,
|
|
', ' if status_str else '',
|
|
r.status_code))
|
|
|
|
self.logger.debug(
|
|
'Response Details:\r\n{}'.format(r.content))
|
|
return (False, {})
|
|
|
|
if r.status_code != requests.codes.ok:
|
|
# We had a problem
|
|
status_str = \
|
|
NotifyReddit.http_response_code_lookup(
|
|
r.status_code, REDDIT_HTTP_ERROR_MAP)
|
|
|
|
self.logger.warning(
|
|
'Failed to send to Reddit {}: '
|
|
'{}error={}'.format(
|
|
url,
|
|
', ' if status_str else '',
|
|
r.status_code))
|
|
|
|
self.logger.debug(
|
|
'Response Details:\r\n{}'.format(r.content))
|
|
|
|
# Mark our failure
|
|
return (False, content)
|
|
|
|
errors = [] if not content else \
|
|
content.get('json', {}).get('errors', [])
|
|
if errors:
|
|
self.logger.warning(
|
|
'Failed to send to Reddit {}: '
|
|
'{}'.format(
|
|
url,
|
|
str(errors)))
|
|
|
|
self.logger.debug(
|
|
'Response Details:\r\n{}'.format(r.content))
|
|
|
|
# Mark our failure
|
|
return (False, content)
|
|
|
|
try:
|
|
# Store our rate limiting (if provided)
|
|
self.ratelimit_remaining = \
|
|
float(r.headers.get(
|
|
'X-RateLimit-Remaining'))
|
|
self.ratelimit_reset = datetime.fromtimestamp(
|
|
int(r.headers.get('X-RateLimit-Reset')), timezone.utc
|
|
).replace(tzinfo=None)
|
|
|
|
except (TypeError, ValueError):
|
|
# This is returned if we could not retrieve this information
|
|
# gracefully accept this state and move on
|
|
pass
|
|
|
|
except requests.RequestException as e:
|
|
self.logger.warning(
|
|
'Exception received when sending Reddit to {}'.
|
|
format(url))
|
|
self.logger.debug('Socket Exception: %s' % str(e))
|
|
|
|
# Mark our failure
|
|
return (False, content)
|
|
|
|
return (True, content)
|
|
|
|
@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
|
|
|
|
# Acquire our targets
|
|
results['targets'] = NotifyReddit.split_path(results['fullpath'])
|
|
|
|
# Kind override
|
|
if 'kind' in results['qsd'] and results['qsd']['kind']:
|
|
results['kind'] = NotifyReddit.unquote(
|
|
results['qsd']['kind'].strip().lower())
|
|
else:
|
|
results['kind'] = RedditMessageKind.AUTO
|
|
|
|
# Is an Ad?
|
|
results['ad'] = \
|
|
parse_bool(results['qsd'].get('ad', False))
|
|
|
|
# Get Not Safe For Work (NSFW) Flag
|
|
results['nsfw'] = \
|
|
parse_bool(results['qsd'].get('nsfw', False))
|
|
|
|
# Send Replies Flag
|
|
results['replies'] = \
|
|
parse_bool(results['qsd'].get('replies', True))
|
|
|
|
# Resubmit Flag
|
|
results['resubmit'] = \
|
|
parse_bool(results['qsd'].get('resubmit', False))
|
|
|
|
# Is Spoiler Flag
|
|
results['spoiler'] = \
|
|
parse_bool(results['qsd'].get('spoiler', False))
|
|
|
|
if 'flair_text' in results['qsd']:
|
|
results['flair_text'] = \
|
|
NotifyReddit.unquote(results['qsd']['flair_text'])
|
|
|
|
if 'flair_id' in results['qsd']:
|
|
results['flair_id'] = \
|
|
NotifyReddit.unquote(results['qsd']['flair_id'])
|
|
|
|
# The 'to' makes it easier to use yaml configuration
|
|
if 'to' in results['qsd'] and len(results['qsd']['to']):
|
|
results['targets'] += \
|
|
NotifyReddit.parse_list(results['qsd']['to'])
|
|
|
|
if 'app_id' in results['qsd']:
|
|
results['app_id'] = \
|
|
NotifyReddit.unquote(results['qsd']['app_id'])
|
|
else:
|
|
# The App/Bot ID is the hostname
|
|
results['app_id'] = NotifyReddit.unquote(results['host'])
|
|
|
|
if 'app_secret' in results['qsd']:
|
|
results['app_secret'] = \
|
|
NotifyReddit.unquote(results['qsd']['app_secret'])
|
|
else:
|
|
# The first target identified is the App secret
|
|
results['app_secret'] = \
|
|
None if not results['targets'] else results['targets'].pop(0)
|
|
|
|
return results
|