forget-cancellare-vecchi-toot/lib/mastodon.py

203 lines
6.1 KiB
Python

from mastodon import Mastodon
from mastodon.Mastodon import MastodonAPIError, MastodonNetworkError,\
MastodonRatelimitError
from model import MastodonApp, Account, OAuthToken, Post
from requests import head
from app import db, sentry
from math import inf
import iso8601
from lib.exceptions import TemporaryError
def get_or_create_app(instance_url, callback, website):
instance_url = instance_url
app = MastodonApp.query.get(instance_url)
try:
head('https://{}'.format(instance_url)).raise_for_status()
proto = 'https'
except Exception:
head('http://{}'.format(instance_url)).raise_for_status()
proto = 'http'
if not app:
client_id, client_secret = Mastodon.create_app(
'forget',
scopes=('read', 'write'),
api_base_url='{}://{}'.format(proto, instance_url),
redirect_uris=callback,
website=website,
)
app = MastodonApp()
app.instance = instance_url
app.client_id = client_id
app.client_secret = client_secret
app.protocol = proto
return app
def anonymous_api(app):
return Mastodon(
app.client_id,
client_secret=app.client_secret,
api_base_url='{}://{}'.format(app.protocol, app.instance),
)
def login_url(app, callback):
return anonymous_api(app).auth_request_url(
redirect_uris=callback,
scopes=('read', 'write',)
)
def receive_code(code, app, callback):
api = anonymous_api(app)
access_token = api.log_in(
code=code,
scopes=('read', 'write'),
redirect_uri=callback,
)
remote_acc = api.account_verify_credentials()
acc = account_from_api_object(remote_acc, app.instance)
acc = db.session.merge(acc)
token = OAuthToken(token=access_token)
token = db.session.merge(token)
token.account = acc
return token
def get_api_for_acc(account):
app = MastodonApp.query.get(account.mastodon_instance)
for token in account.tokens:
api = Mastodon(
app.client_id,
client_secret=app.client_secret,
api_base_url='{}://{}'.format(app.protocol, app.instance),
access_token=token.token,
ratelimit_method='throw',
)
try:
# api.verify_credentials()
# doesnt error even if the token is revoked lol
# https://github.com/tootsuite/mastodon/issues/4637
# so we have to do this:
tl = api.timeline()
if 'error' in tl:
if sentry:
sentry.captureMessage('Mastodon auth revoked or incorrect',
extra=locals())
db.session.delete(token)
db.session.commit()
continue
return api
except (MastodonAPIError,
MastodonNetworkError,
MastodonRatelimitError) as e:
raise TemporaryError(e)
def fetch_acc(acc, cursor=None):
api = get_api_for_acc(acc)
if not api:
print('no access, aborting')
return None
try:
newacc = account_from_api_object(
api.account_verify_credentials(), acc.mastodon_instance)
acc = db.session.merge(newacc)
kwargs = dict(limit=40)
if cursor:
kwargs.update(cursor)
if 'max_id' not in kwargs:
most_recent_post = (
Post.query.with_parent(acc)
.order_by(db.desc(Post.created_at)).first())
if most_recent_post:
kwargs['since_id'] = most_recent_post.mastodon_id
statuses = api.account_statuses(acc.mastodon_id, **kwargs)
if statuses:
kwargs['max_id'] = +inf
for status in statuses:
post = post_from_api_object(status, acc.mastodon_instance)
db.session.merge(post)
kwargs['max_id'] = min(kwargs['max_id'], status['id'])
else:
kwargs = None
db.session.commit()
return kwargs
except (MastodonAPIError,
MastodonNetworkError,
MastodonRatelimitError) as e:
raise TemporaryError(e)
def post_from_api_object(obj, instance):
return Post(
mastodon_instance=instance,
mastodon_id=obj['id'],
favourite=obj['favourited'],
has_media=('media_attachments' in obj
and bool(obj['media_attachments'])),
created_at=iso8601.parse_date(obj['created_at']),
author_id=account_from_api_object(obj['account'], instance).id,
direct=obj['visibility'] == 'direct',
)
def account_from_api_object(obj, instance):
return Account(
mastodon_instance=instance,
mastodon_id=obj['id'],
screen_name='{}@{}'.format(obj['username'], instance),
display_name=obj['display_name'],
avatar_url=obj['avatar'],
reported_post_count=obj['statuses_count'],
)
def refresh_posts(posts):
acc = posts[0].author
api = get_api_for_acc(acc)
if not api:
raise Exception('no access')
new_posts = list()
for post in posts:
try:
status = api.status(post.mastodon_id)
new_post = db.session.merge(
post_from_api_object(status, post.mastodon_instance))
new_posts.append(new_post)
except (MastodonAPIError,
MastodonNetworkError,
MastodonRatelimitError) as e:
if str(e) == 'Endpoint not found.':
db.session.delete(post)
else:
raise TemporaryError(e)
return new_posts
def delete(post):
api = get_api_for_acc(post.author)
try:
api.status_delete(post.mastodon_id)
db.session.delete(post)
except (MastodonAPIError,
MastodonNetworkError,
MastodonRatelimitError) as e:
raise TemporaryError(e)