# coding=utf-8
"""Mastodon source class.
Mastodon is an ActivityPub implementation, but it also has a REST + OAuth 2 API
independent of AP. API docs: https://docs.joinmastodon.org/api/
May also be used for services with Mastodon-compatible APIs, eg Pleroma:
https://docs-develop.pleroma.social/backend/API/differences_in_mastoapi_responses/
"""
import itertools
import logging
import re
import urllib.parse
from oauth_dropins.webutil import util
from oauth_dropins.webutil.testutil import requests_response
from oauth_dropins.webutil.util import json_dumps, json_loads
from requests import HTTPError, JSONDecodeError, RequestException
from . import source
logger = logging.getLogger(__name__)
API_ACCOUNT = '/api/v1/accounts/%s'
API_ACCOUNT_STATUSES = '/api/v1/accounts/%s/statuses'
API_BLOCKS = '/api/v1/blocks?limit=1000'
API_CONTEXT = '/api/v1/statuses/%s/context'
API_FAVORITE = '/api/v1/statuses/%s/favourite'
API_FAVORITED_BY = '/api/v1/statuses/%s/favourited_by'
API_MEDIA = '/api/v1/media'
API_NOTIFICATIONS = '/api/v1/notifications'
API_REBLOG = '/api/v1/statuses/%s/reblog'
API_REBLOGGED_BY = '/api/v1/statuses/%s/reblogged_by'
API_SEARCH = '/api/v2/search'
API_STATUS = '/api/v1/statuses/%s'
API_STATUSES = '/api/v1/statuses'
API_TIMELINE = '/api/v1/timelines/home'
API_VERIFY_CREDENTIALS = '/api/v1/accounts/verify_credentials'
# https://docs.joinmastodon.org/user/posting/#text
DEFAULT_TRUNCATE_TEXT_LENGTH = 500
# https://docs.joinmastodon.org/methods/statuses/media/
MAX_ALT_LENGTH = 420
# maps Mastodon media attachment type to AS1 objectType
# https://docs.joinmastodon.org/entities/attachment/#type
MEDIA_TYPES = {
'image': 'image',
'video': 'video',
'gifv': 'video',
'unknown': None,
}
# Not documented, but here's the Mastodon commit that added this limit:
# https://github.com/tootsuite/mastodon/commit/5f511324b6#diff-11783d64d04391768226f7d45a610898R40
MAX_MEDIA = 4
# copied from Mastodon's source on 2019-10-21, then revised the lookbehind
# https://github.com/tootsuite/mastodon/blob/6bee7b820dcde6d487e93b8699d4aab3e49bedc4/app/models/account.rb#L52-L53
USERNAME_RE = re.compile(r'[a-z0-9_]+([a-z0-9_\.-]+[a-z0-9_]+)?', re.IGNORECASE)
MENTION_RE = re.compile(r'(?<![\/\w])@((' + USERNAME_RE.pattern +
r')(?:@[a-z0-9\.\-]+[a-z0-9]+)?)', re.IGNORECASE)
# copied from twitter.py. if we need anything better, we could copy Mastodon's:
# https://github.com/tootsuite/mastodon/blob/915f3712ae7ae44c0cbe50c9694c25e3ee87a540/app/models/tag.rb#L28-L30
HASHTAG_RE = re.compile(r'(^|\s)[#＃](\w+)\b', re.UNICODE)
[docs]class Mastodon(source.Source):
"""Mastodon source class. See file docstring and Source class for details.
Attributes:
instance: string, base URL of Mastodon instance, eg https://mastodon.social/
user_id: integer, optional, current user's id (not username!) on this instance
access_token: string, optional, OAuth access token
"""
DOMAIN = 'N/A'
BASE_URL = 'N/A'
NAME = 'Mastodon'
TYPE_LABELS = {
'post': 'toot',
'comment': 'reply',
'repost': 'boost',
'like': 'favorite',
}
# TRUNCATE_TEXT_LENGTH is set in the constructor
TRUNCATE_URL_LENGTH = 23
[docs] def __init__(self, instance, access_token, user_id=None,
truncate_text_length=None):
"""Constructor.
If user_id is not provided, it will be fetched via the API.
Args:
instance: string, base URL of Mastodon instance, eg https://mastodon.social/
user_id: string or integer, optional, current user's id (not username!) on
this instance
access_token: string, optional OAuth access token
truncate_text_length: int, optional character limit for toots, overrides
the default of 500
"""
assert instance
self.instance = self.BASE_URL = instance
assert access_token
self.access_token = access_token
self.TRUNCATE_TEXT_LENGTH = (
truncate_text_length if truncate_text_length is not None
else DEFAULT_TRUNCATE_TEXT_LENGTH)
self.DOMAIN = util.domain_from_link(instance)
if user_id:
self.user_id = user_id
else:
creds = self._get(API_VERIFY_CREDENTIALS)
self.user_id = creds['id']
[docs] def user_url(self, username):
return urllib.parse.urljoin(self.instance, '@' + username)
def _get(self, *args, **kwargs):
return self._api(util.requests_get, *args, **kwargs)
def _post(self, *args, **kwargs):
return self._api(util.requests_post, *args, **kwargs)
def _delete(self, *args, **kwargs):
return self._api(util.requests_delete, *args, **kwargs)
def _api(self, fn, path, return_json=True, *args, **kwargs):
headers = kwargs.setdefault('headers', {})
headers['Authorization'] = 'Bearer ' + self.access_token
url = urllib.parse.urljoin(self.instance, path)
resp = fn(url, *args, **kwargs)
try:
resp.raise_for_status()
except BaseException as e:
util.interpret_http_exception(e)
raise
if not return_json:
return resp
if fn == util.requests_delete:
return {}
content_type = resp.headers.get('Content-Type', '')
if content_type.split(';')[0] != 'application/json':
# Truth Social returns text/plain;charset=UTF-8
logging.warning(f'Content-Type {content_type} is not application/json!')
try:
return resp.json()
except JSONDecodeError as e:
resp.status_code = 502
raise HTTPError(e, response=resp)
[docs] @classmethod
def embed_post(cls, obj):
"""Returns the HTML string for embedding a toot.
https://docs.joinmastodon.org/methods/oembed/
Args:
obj: AS1 dict with at least url, and optionally also content.
Returns: string, HTML
"""
return f"""
<script src="{urllib.parse.urljoin(obj['url'], '/embed.js')}" async="async"></script>
<br>
<iframe src="{obj['url']}/embed" class="{cls.NAME.lower()}-embed shadow"
style="max-width: 100%; border: 0" width="400"
allowfullscreen="allowfullscreen">
</iframe>
"""
[docs] def get_activities_response(self, user_id=None, group_id=None, app_id=None,
activity_id=None, fetch_replies=False,
fetch_likes=False, fetch_shares=False,
include_shares=True, fetch_events=False,
fetch_mentions=False, search_query=None,
start_index=0, count=0, cache=None, **kwargs):
"""Fetches toots and converts them to ActivityStreams activities.
See :meth:`Source.get_activities_response` for details.
"""
if user_id and group_id in (source.FRIENDS, source.ALL):
raise ValueError(f"{self.NAME} doesn't support group_id {group_id} with user_id")
if not user_id:
user_id = self.user_id
if fetch_events:
raise NotImplementedError()
params = {}
if count:
params['limit'] = count + start_index
if activity_id:
statuses = [self._get(API_STATUS % activity_id)]
elif group_id in (None, source.FRIENDS):
statuses = self._get(API_TIMELINE, params=params)
elif group_id == source.SEARCH:
if not search_query:
raise ValueError('search requires search_query parameter')
statuses = self._get(API_SEARCH, params={
'q': search_query,
'resolve': True,
'offset': start_index,
**params,
}).get('statuses', [])
else: # eg group_id SELF
statuses = self._get(API_ACCOUNT_STATUSES % user_id, params=params)
activities = []
if cache is None:
# for convenience, throwaway object just for this method
cache = {}
# fetch extras if necessary
for status in statuses[start_index:]:
if not include_shares and status.get('reblog'):
continue
activity = self.postprocess_activity(self.status_to_activity(status))
activities.append(activity)
id = status.get('id')
if not id:
continue
obj = activity['object']
count = status.get('replies_count')
if fetch_replies and count and count != cache.get('AMRE ' + id):
context = self._get(API_CONTEXT % id)
obj['replies'] = {
'items': [self.status_to_activity(reply)
for reply in context.get('descendants', [])]
}
cache['AMRE ' + id] = count
tags = obj.setdefault('tags', [])
count = status.get('favourites_count')
if fetch_likes and count and count != cache.get('AMF ' + id):
likers = self._get(API_FAVORITED_BY % id)
tags.extend(self._make_like(status, l) for l in likers)
cache['AMF ' + id] = count
count = status.get('reblogs_count')
if fetch_shares and count and count != cache.get('AMRB ' + id):
sharers = self._get(API_REBLOGGED_BY % id)
tags.extend(self._make_share(status, s) for s in sharers)
cache['AMRB ' + id] = count
if fetch_mentions:
# https://docs.joinmastodon.org/methods/notifications/
notifs = self._get(API_NOTIFICATIONS, json={
'exclude_types': ['follow', 'favourite', 'reblog'],
})
activities.extend(self.status_to_activity(n['status']) for n in notifs
if n.get('status') and n.get('type') == 'mention')
resp = self.make_activities_base_response(util.trim_nulls(activities))
return resp
[docs] def get_actor(self, user_id=None):
"""Fetches and returns an account.
Args: user_id: string, defaults to current account
Returns: dict, ActivityStreams actor object
"""
if user_id is None:
user_id = self.user_id
return self.user_to_actor(self._get(API_ACCOUNT % user_id))
[docs] def status_to_activity(self, status):
"""Converts a status to an activity.
Args:
status: dict, a decoded JSON status
Returns:
an ActivityStreams activity dict, ready to be JSON-encoded
"""
obj = self.status_to_object(status)
activity = {
'verb': 'post',
'published': obj.get('published'),
'id': obj.get('id'),
'url': obj.get('url'),
'actor': obj.get('author'),
'object': obj,
'context': {'inReplyTo': obj.get('inReplyTo')},
}
reblogged = status.get('reblog')
if reblogged:
activity.update({
'objectType': 'activity',
'verb': 'share',
'object': self.status_to_object(reblogged),
})
app = status.get('application')
if app:
activity['generator'] = {
'displayName': app.get('name'),
'url': app.get('website'),
}
return self.postprocess_activity(activity)
[docs] def status_to_object(self, status):
"""Converts a status to an object.
Args:
status: dict, a decoded JSON status
Returns:
an ActivityStreams object dict, ready to be JSON-encoded
"""
id = status.get('id')
if not id:
return {}
obj = {
'objectType': 'note',
'id': self.tag_uri(id),
'url': status.get('url'),
'published': status.get('created_at'),
'author': self.user_to_actor(status.get('account') or {}),
'attachments': [],
}
reblog = status.get('reblog')
base_status = reblog or status
# media! into attachments.
for media in status.get('media_attachments', []):
type = media.get('type')
desc = media.get('description')
att = {
'id': self.tag_uri(media.get('id')),
'objectType': MEDIA_TYPES.get(type),
'displayName': desc,
}
url = media.get('url')
if type == 'image':
att['image'] = {
'url': url,
'displayName': desc,
}
elif type in ('gifv', 'video'):
att.update({
'stream': {'url': url},
'image': {'url': media.get('preview_url')},
})
obj['attachments'].append(att)
if obj['attachments']:
first = obj['attachments'][0]
if first['objectType'] == 'video':
obj['stream'] = first.get('stream')
else:
obj['image'] = first.get('image')
# tags
obj['tags'] = [{
'objectType': 'person',
'id': self.tag_uri(t.get('id')),
'url': t.get('url'),
'displayName': t.get('username'),
} for t in status.get('mentions', [])] + [{
'objectType': 'hashtag',
'url': t.get('url'),
'displayName': t.get('name'),
} for t in status.get('tags', [])]
card = status.get('card')
if card:
obj['tags'].append({
'objectType': 'article',
'url': card.get('url'),
'displayName': card.get('title'),
'content': card.get('description'),
'image': {'url': card.get('image')},
})
# content: insert images for custom emoji
# https://docs.joinmastodon.org/entities/emoji/
content = base_status.get('content') or ''
for emoji in base_status.get('emojis', []):
shortcode = emoji.get('shortcode')
url = emoji.get('url')
if shortcode and url:
content = re.sub(
r'(^|[^\w]):%s:([^\w]|$)' % shortcode,
r'\1<img alt="%s" src="%s" style="height: 1em">\2' % (shortcode, url),
content)
# content: add 'Boosted @username:' prefix for reblogs
if reblog and reblog.get('content'):
reblog_account = reblog.get('account')
content = f"Boosted <a href=\"{reblog_account.get('url')}\">@{reblog_account.get('username')}</a>: " + content
obj['content'] = util.WideUnicode(content)
# inReplyTo
reply_to_id = status.get('in_reply_to_id')
if reply_to_id:
obj['inReplyTo'] = [{
'id': self.tag_uri(reply_to_id),
# Mastodon's in_reply_to_id is str, Pixelfed's is int.
'url': urllib.parse.urljoin(self.instance, '/web/statuses/' + str(reply_to_id)),
}]
# to (ie visibility)
visibility = status.get('visibility')
if visibility:
obj['to'] = [{
'objectType': 'group',
'alias': '@' + visibility,
}]
return self.postprocess_object(obj)
[docs] def user_to_actor(self, account):
"""Converts a Mastodon account to an AS1 actor.
Args:
account: dict, Mastodon account
Returns: dict, AS1 actor
"""
domain = self.DOMAIN
username = account.get('username')
# parse acct. it's just username for local accounts but fully qualified
# address for remote accounts, eg user@host.com.
acct = account.get('acct') or ''
split = acct.split('@')
if len(split) in (2, 3):
acct_username, acct_domain = split[-2:]
if acct_domain:
domain = acct_domain
if not username:
username = acct[-2]
elif acct_username and username != acct_username:
raise ValueError(f'username {username} and acct {acct} conflict!')
if not username:
return {}
url = account.get('url')
# mastodon's 'Web site' fields are HTML links, so extract their URLs
web_sites = sum((util.extract_links(f.get('value'))
for f in (account.get('fields') or [])), [])
# account.created_at is string ISO8601 in Mastodon, int timestamp in Pixelfed
published = account.get('created_at')
if util.is_int(published) or util.is_float(published):
published = util.maybe_timestamp_to_iso8601(published)
return util.trim_nulls({
'objectType': 'person',
'id': util.tag_uri(domain, username),
'numeric_id': account.get('id'),
'username': username,
'displayName': account.get('display_name') or acct or username,
'url': url,
'urls': [{'value': u} for u in [url] + web_sites],
'image': {'url': account.get('avatar')},
'published': published,
'description': account.get('note'),
})
def _make_like(self, status, account):
return self._make_like_or_share(status, account, 'like')
def _make_share(self, status, account):
return self._make_like_or_share(status, account, 'share')
def _make_like_or_share(self, status, account, verb):
"""Generates and returns a ActivityStreams like object.
Args:
status: dict, Mastodon status
account: dict, Mastodon account
verb: string, 'like' or 'share'
Returns: dict, AS1 like activity
"""
assert verb in ('like', 'share')
label = 'favorited' if verb == 'like' else 'reblogged'
url = status.get('url')
account_id = account.get('id')
return {
'id': self.tag_uri(f"{status.get('id')}_{label}_by_{account_id}"),
'url': f'{url}#{label}-by-{account_id}',
'objectType': 'activity',
'verb': verb,
'object': {'url': url},
'author': self.user_to_actor(account),
}
[docs] def create(self, obj, include_link=source.OMIT_LINK, ignore_formatting=False):
"""Creates a status (aka toot), reply, boost (aka reblog), or favorite.
https://docs.joinmastodon.org/methods/statuses/
Args:
obj: ActivityStreams object
include_link: string
ignore_formatting: boolean
Returns: CreationResult whose content will be a dict with 'id', 'url', and
'type' keys (all optional) for the newly created object (or None)
"""
return self._create(obj, preview=False, include_link=include_link,
ignore_formatting=ignore_formatting)
[docs] def preview_create(self, obj, include_link=source.OMIT_LINK,
ignore_formatting=False):
"""Preview creating a status (aka toot), reply, boost (aka reblog), or favorite.
https://docs.joinmastodon.org/methods/statuses/
Args:
obj: ActivityStreams object
include_link: string
ignore_formatting: boolean
Returns: CreationResult whose content will be a unicode string HTML
snippet (or None)
"""
return self._create(obj, preview=True, include_link=include_link,
ignore_formatting=ignore_formatting)
def _create(self, obj, preview=None, include_link=source.OMIT_LINK,
ignore_formatting=False):
"""Creates or previews a status (aka toot), reply, boost (aka reblog), or favorite.
https://docs.joinmastodon.org/methods/statuses/
Based on :meth:`Twitter._create`.
Args:
obj: ActivityStreams object
preview: boolean
include_link: string
ignore_formatting: boolean
Returns: CreationResult. If preview is True, the content will be a unicode
string HTML snippet. If False, it will be a dict with 'id' and 'url' keys
for the newly created object.
"""
assert preview in (False, True)
type = obj.get('objectType')
verb = obj.get('verb')
base_obj = self.base_object(obj)
base_id = base_obj.get('id')
base_url = base_obj.get('url')
is_reply = type == 'comment' or obj.get('inReplyTo')
is_rsvp = (verb and verb.startswith('rsvp-')) or verb == 'invite'
atts = obj.get('attachments', [])
images = util.dedupe_urls(util.get_list(obj, 'image') +
[a for a in atts if a.get('objectType') == 'image'])
videos = util.dedupe_urls([obj] + [a for a in atts if a.get('objectType') == 'video'],
key='stream')
has_media = (images or videos) and (type in ('note', 'article') or is_reply)
# prefer displayName over content for articles
#
# TODO: handle activities as well as objects? ie pull out ['object'] here if
# necessary?
prefer_content = type == 'note' or (base_url and is_reply)
preview_description = ''
content = self._content_for_create(
obj, ignore_formatting=ignore_formatting, prefer_name=not prefer_content)
if not content:
if type == 'activity' and not is_rsvp:
content = verb
elif has_media:
content = ''
else:
return source.creation_result(
abort=False, # keep looking for things to publish,
error_plain='No content text found.',
error_html='No content text found.')
# truncate and ellipsize content if necessary
# TODO: don't count domains in remote mentions.
# https://docs.joinmastodon.org/user/posting/#text
content = self.truncate(content, obj.get('url'), include_link, type)
# linkify user mentions
def linkify_mention(match):
split = match.group(1).split('@')
username = split[0]
instance = ('https://' + split[1]) if len(split) > 1 else self.instance
url = urllib.parse.urljoin(instance, '/@' + username)
return f'<a href="{url}">@{username}</a>'
preview_content = MENTION_RE.sub(linkify_mention, content)
# linkify (defaults to twitter's behavior)
preview_content = util.linkify(preview_content, pretty=True, skip_bare_cc_tlds=True)
tags_url = urllib.parse.urljoin(self.instance, '/tags')
preview_content = HASHTAG_RE.sub(r'\1<a href="%s/\2">#\2</a>' % tags_url,
preview_content)
post_label = f"{self.NAME} {self.TYPE_LABELS['post']}"
# switch on activity type
if type == 'activity' and verb in ('like', 'favorite'):
if not base_url:
return source.creation_result(
abort=True,
error_plain=f"Could not find a {post_label} to {self.TYPE_LABELS['like']}.",
error_html=f"Could not find a {post_label} to <a href=\"http://indiewebcamp.com/like\">{self.TYPE_LABELS['like']}</a>. Check that your post has the right <a href=\"http://indiewebcamp.com/like\">u-like-of link</a>.")
if preview:
preview_description += f"<span class=\"verb\">{self.TYPE_LABELS['like']}</span> <a href=\"{base_url}\">this {self.TYPE_LABELS['post']}</a>: {self.embed_post(base_obj)}"
return source.creation_result(description=preview_description)
else:
resp = self._post(API_FAVORITE % base_id)
resp['url'] += f'#favorited-by-{self.user_id}'
resp['type'] = 'like'
elif type == 'activity' and verb == 'share':
if not base_url:
return source.creation_result(
abort=True,
error_plain=f"Could not find a {post_label} to {self.TYPE_LABELS['repost']}.",
error_html=f"Could not find a {post_label} to <a href=\"http://indiewebcamp.com/repost\">{self.TYPE_LABELS['repost']}</a>. Check that your post has the right <a href=\"http://indiewebcamp.com/repost\">repost-of</a> link.")
if preview:
preview_description += f"<span class=\"verb\">{self.TYPE_LABELS['repost']}</span> <a href=\"{base_url}\">this {self.TYPE_LABELS['post']}</a>: {self.embed_post(base_obj)}"
return source.creation_result(description=preview_description)
else:
resp = self._post(API_REBLOG % base_id)
resp['type'] = 'repost'
elif (type in ('note', 'article') or is_reply or is_rsvp or
(type == 'activity' and verb == 'post')): # probably a bookmark
data = {'status': content}
if is_reply and base_url:
preview_description += f"add a <span class=\"verb\">{self.TYPE_LABELS['comment']}</span> to <a href=\"{base_url}\">this {self.TYPE_LABELS['post']}</a>: {self.embed_post(base_obj)}"
data['in_reply_to_id'] = base_id
else:
preview_description += f"<span class=\"verb\">{self.TYPE_LABELS['post']}</span>:"
num_media = len(videos) + len(images)
if num_media > MAX_MEDIA:
videos = videos[:MAX_MEDIA]
images = images[:max(MAX_MEDIA - len(videos), 0)]
logger.warning(f'Found {num_media} media! Only using the first {MAX_MEDIA}: {videos + images!r}')
if preview:
media_previews = [
f"<video controls src=\"{util.get_url(vid, key='stream')}\"><a href=\"{util.get_url(vid, key='stream')}\">{vid.get('displayName') or 'this video'}</a></video>"
for vid in videos
] + [
f"<img src=\"{util.get_url(img)}\" alt=\"{img.get('displayName') or ''}\" />"
for img in images
]
if media_previews:
preview_content += '<br /><br />' + ' '.join(media_previews)
return source.creation_result(content=preview_content,
description=preview_description)
else:
ids = self.upload_media(videos + images)
if ids:
data['media_ids'] = ids
resp = self._post(API_STATUSES, json=data)
else:
return source.creation_result(
abort=False,
error_plain=f'Cannot publish type={type}, verb={verb} to Mastodon',
error_html=f'Cannot publish type={type}, verb={verb} to Mastodon')
if 'url' not in resp:
resp['url'] = base_url
return source.creation_result(resp)
[docs] def base_object(self, obj):
"""Returns the 'base' Mastodon object that an object operates on.
If the object is a reply, boost, or favorite of a Mastodon post - on any
instance - this returns that post object. The id in the returned object is
the id of that remote post *on the local instance*. (As a Mastodon style id,
ie an integer in a string, *not* a tag URI.)
Uses Mastodon's search API on the local instance to determine whether a URL
is a Mastodon post, and if it is, to find or generate an id for it on the
local instance.
Discovered via https://mastodon.social/@jkreeftmeijer/101245063526942536
Args:
obj: ActivityStreams object
Returns:
dict, minimal ActivityStreams object. Usually has at least id; may
also have url, author, etc.
"""
for field in ('inReplyTo', 'object', 'target'):
for base in util.get_list(obj, field):
url = util.get_url(base)
if not url:
return {}
# first, check if it's on local instance
if url.startswith(self.instance):
return self._postprocess_base_object(base)
# nope; try mastodon's search API
try:
results = self._get(API_SEARCH, params={'q': url, 'resolve': True})
except RequestException:
logger.info(f"{field} URL {url} doesn't look like Mastodon:")
continue
for status in results.get('statuses', []):
if url in (status.get('url'), status.get('uri')):
# found it!
base = self.status_to_object(status)
base['id'] = status['id']
return self._postprocess_base_object(base)
return {}
[docs] def status_url(self, id):
"""Returns the local instance URL for a status with a given id."""
return urllib.parse.urljoin(self.instance, f'/web/statuses/{id}')
[docs] def delete(self, id):
"""Deletes a toot. The authenticated user must have authored it.
Args:
id: int or string, toot id (on local instance) to delete
Returns: CreationResult, content is dict with url and id fields
"""
self._delete(API_STATUS % id)
return source.creation_result({'url': self.status_url(id)})
[docs] def preview_delete(self, id):
"""Previews deleting a toot.
Args:
id: int or string, toot id (on local instance) to delete
Returns: CreationResult
"""
# can't embed right now because embeds require standalone URL, eg
# http://foo.com/@user/123, and we don't have the username here.
return source.creation_result(
description=f'<span class="verb">delete</span> <a href="{self.status_url(id)}">this toot</a>.')
[docs] def get_blocklist_ids(self):
"""Returns the current user's block list as a list of integer account ids.
May make multiple API calls to fully fetch large block lists.
https://docs.joinmastodon.org/methods/accounts/blocks/
Returns:
sequence of integer Mastodon account ids on the current instance
"""
ids = []
url = API_BLOCKS
while True:
resp = self._get(url, return_json=False)
ids.extend(util.trim_nulls([rel.get('id') for rel in resp.json()]))
url = resp.links.get('next', {}).get('url')
if not url:
break
return ids