mirror of https://gitlab.com/bashrc2/epicyon
485 lines
17 KiB
Python
485 lines
17 KiB
Python
__filename__ = "like.py"
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__author__ = "Bob Mottram"
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__license__ = "AGPL3+"
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__version__ = "1.2.0"
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__maintainer__ = "Bob Mottram"
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__email__ = "bob@libreserver.org"
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__status__ = "Production"
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__module_group__ = "ActivityPub"
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import os
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from pprint import pprint
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from utils import has_object_string
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from utils import has_object_string_object
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from utils import has_object_stringType
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from utils import remove_domain_port
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from utils import has_object_dict
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from utils import has_users_path
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from utils import get_full_domain
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from utils import remove_id_ending
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from utils import url_permitted
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from utils import get_nickname_from_actor
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from utils import get_domain_from_actor
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from utils import locate_post
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from utils import undo_likes_collection_entry
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from utils import has_group_type
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from utils import local_actor_url
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from utils import load_json
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from utils import save_json
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from utils import remove_post_from_cache
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from utils import get_cached_post_filename
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from posts import send_signed_json
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from session import post_json
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from webfinger import webfinger_handle
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from auth import create_basic_auth_header
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from posts import get_person_box
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def no_of_likes(post_json_object: {}) -> int:
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"""Returns the number of likes ona given post
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"""
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obj = post_json_object
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if has_object_dict(post_json_object):
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obj = post_json_object['object']
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if not obj.get('likes'):
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return 0
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if not isinstance(obj['likes'], dict):
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return 0
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if not obj['likes'].get('items'):
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obj['likes']['items'] = []
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obj['likes']['totalItems'] = 0
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return len(obj['likes']['items'])
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def liked_by_person(post_json_object: {}, nickname: str, domain: str) -> bool:
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"""Returns True if the given post is liked by the given person
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"""
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if no_of_likes(post_json_object) == 0:
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return False
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actor_match = domain + '/users/' + nickname
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obj = post_json_object
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if has_object_dict(post_json_object):
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obj = post_json_object['object']
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for item in obj['likes']['items']:
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if item['actor'].endswith(actor_match):
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return True
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return False
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def _create_like(recent_posts_cache: {},
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session, base_dir: str, federation_list: [],
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nickname: str, domain: str, port: int,
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cc_list: [], http_prefix: str,
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object_url: str, actor_liked: str,
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client_to_server: bool,
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send_threads: [], postLog: [],
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person_cache: {}, cached_webfingers: {},
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debug: bool, project_version: str,
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signing_priv_key_pem: str) -> {}:
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"""Creates a like
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actor is the person doing the liking
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'to' might be a specific person (actor) whose post was liked
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object is typically the url of the message which was liked
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"""
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if not url_permitted(object_url, federation_list):
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return None
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full_domain = get_full_domain(domain, port)
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new_like_json = {
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"@context": "https://www.w3.org/ns/activitystreams",
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'type': 'Like',
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'actor': local_actor_url(http_prefix, nickname, full_domain),
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'object': object_url
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}
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if cc_list:
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if len(cc_list) > 0:
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new_like_json['cc'] = cc_list
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# Extract the domain and nickname from a statuses link
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liked_post_nickname = None
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liked_post_domain = None
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liked_post_port = None
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group_account = False
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if actor_liked:
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liked_post_nickname = get_nickname_from_actor(actor_liked)
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liked_post_domain, liked_post_port = get_domain_from_actor(actor_liked)
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group_account = has_group_type(base_dir, actor_liked, person_cache)
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else:
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if has_users_path(object_url):
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liked_post_nickname = get_nickname_from_actor(object_url)
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liked_post_domain, liked_post_port = \
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get_domain_from_actor(object_url)
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if '/' + str(liked_post_nickname) + '/' in object_url:
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actor_liked = \
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object_url.split('/' + liked_post_nickname + '/')[0] + \
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'/' + liked_post_nickname
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group_account = \
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has_group_type(base_dir, actor_liked, person_cache)
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if liked_post_nickname:
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post_filename = locate_post(base_dir, nickname, domain, object_url)
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if not post_filename:
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print('DEBUG: like base_dir: ' + base_dir)
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print('DEBUG: like nickname: ' + nickname)
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print('DEBUG: like domain: ' + domain)
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print('DEBUG: like object_url: ' + object_url)
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return None
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update_likes_collection(recent_posts_cache,
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base_dir, post_filename, object_url,
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new_like_json['actor'],
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nickname, domain, debug, None)
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send_signed_json(new_like_json, session, base_dir,
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nickname, domain, port,
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liked_post_nickname, liked_post_domain,
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liked_post_port,
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'https://www.w3.org/ns/activitystreams#Public',
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http_prefix, True, client_to_server, federation_list,
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send_threads, postLog, cached_webfingers,
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person_cache,
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debug, project_version, None, group_account,
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signing_priv_key_pem, 7367374)
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return new_like_json
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def like_post(recent_posts_cache: {},
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session, base_dir: str, federation_list: [],
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nickname: str, domain: str, port: int, http_prefix: str,
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like_nickname: str, like_domain: str, like_port: int,
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cc_list: [],
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like_status_number: int, client_to_server: bool,
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send_threads: [], postLog: [],
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person_cache: {}, cached_webfingers: {},
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debug: bool, project_version: str,
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signing_priv_key_pem: str) -> {}:
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"""Likes a given status post. This is only used by unit tests
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"""
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like_domain = get_full_domain(like_domain, like_port)
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actor_liked = local_actor_url(http_prefix, like_nickname, like_domain)
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object_url = actor_liked + '/statuses/' + str(like_status_number)
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return _create_like(recent_posts_cache,
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session, base_dir, federation_list,
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nickname, domain, port,
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cc_list, http_prefix, object_url, actor_liked,
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client_to_server,
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send_threads, postLog, person_cache, cached_webfingers,
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debug, project_version, signing_priv_key_pem)
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def send_like_via_server(base_dir: str, session,
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from_nickname: str, password: str,
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from_domain: str, from_port: int,
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http_prefix: str, like_url: str,
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cached_webfingers: {}, person_cache: {},
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debug: bool, project_version: str,
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signing_priv_key_pem: str) -> {}:
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"""Creates a like via c2s
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"""
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if not session:
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print('WARN: No session for send_like_via_server')
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return 6
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from_domain_full = get_full_domain(from_domain, from_port)
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actor = local_actor_url(http_prefix, from_nickname, from_domain_full)
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new_like_json = {
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"@context": "https://www.w3.org/ns/activitystreams",
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'type': 'Like',
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'actor': actor,
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'object': like_url
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}
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handle = http_prefix + '://' + from_domain_full + '/@' + from_nickname
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# lookup the inbox for the To handle
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wf_request = webfinger_handle(session, handle, http_prefix,
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cached_webfingers,
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from_domain, project_version, debug, False,
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signing_priv_key_pem)
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if not wf_request:
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if debug:
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print('DEBUG: like webfinger failed for ' + handle)
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return 1
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if not isinstance(wf_request, dict):
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print('WARN: like webfinger for ' + handle +
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' did not return a dict. ' + str(wf_request))
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return 1
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post_to_box = 'outbox'
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# get the actor inbox for the To handle
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origin_domain = from_domain
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(inbox_url, _, _, from_person_id, _, _,
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_, _) = get_person_box(signing_priv_key_pem,
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origin_domain,
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base_dir, session, wf_request,
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person_cache,
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project_version, http_prefix,
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from_nickname, from_domain,
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post_to_box, 72873)
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if not inbox_url:
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if debug:
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print('DEBUG: like no ' + post_to_box + ' was found for ' + handle)
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return 3
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if not from_person_id:
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if debug:
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print('DEBUG: like no actor was found for ' + handle)
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return 4
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auth_header = create_basic_auth_header(from_nickname, password)
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headers = {
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'host': from_domain,
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'Content-type': 'application/json',
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'Authorization': auth_header
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}
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post_result = post_json(http_prefix, from_domain_full,
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session, new_like_json, [], inbox_url,
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headers, 3, True)
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if not post_result:
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if debug:
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print('WARN: POST like failed for c2s to ' + inbox_url)
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return 5
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if debug:
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print('DEBUG: c2s POST like success')
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return new_like_json
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def send_undo_like_via_server(base_dir: str, session,
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from_nickname: str, password: str,
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from_domain: str, from_port: int,
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http_prefix: str, like_url: str,
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cached_webfingers: {}, person_cache: {},
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debug: bool, project_version: str,
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signing_priv_key_pem: str) -> {}:
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"""Undo a like via c2s
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"""
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if not session:
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print('WARN: No session for send_undo_like_via_server')
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return 6
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from_domain_full = get_full_domain(from_domain, from_port)
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actor = local_actor_url(http_prefix, from_nickname, from_domain_full)
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new_undo_like_json = {
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"@context": "https://www.w3.org/ns/activitystreams",
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'type': 'Undo',
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'actor': actor,
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'object': {
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'type': 'Like',
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'actor': actor,
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'object': like_url
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}
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}
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handle = http_prefix + '://' + from_domain_full + '/@' + from_nickname
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# lookup the inbox for the To handle
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wf_request = webfinger_handle(session, handle, http_prefix,
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cached_webfingers,
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from_domain, project_version, debug, False,
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signing_priv_key_pem)
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if not wf_request:
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if debug:
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print('DEBUG: unlike webfinger failed for ' + handle)
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return 1
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if not isinstance(wf_request, dict):
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if debug:
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print('WARN: unlike webfinger for ' + handle +
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' did not return a dict. ' + str(wf_request))
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return 1
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post_to_box = 'outbox'
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# get the actor inbox for the To handle
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origin_domain = from_domain
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(inbox_url, _, _, from_person_id, _, _,
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_, _) = get_person_box(signing_priv_key_pem,
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origin_domain,
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base_dir, session, wf_request,
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person_cache, project_version,
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http_prefix, from_nickname,
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from_domain, post_to_box,
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72625)
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if not inbox_url:
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if debug:
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print('DEBUG: unlike no ' + post_to_box + ' was found for ' +
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handle)
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return 3
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if not from_person_id:
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if debug:
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print('DEBUG: unlike no actor was found for ' + handle)
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return 4
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auth_header = create_basic_auth_header(from_nickname, password)
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headers = {
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'host': from_domain,
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'Content-type': 'application/json',
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'Authorization': auth_header
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}
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post_result = post_json(http_prefix, from_domain_full,
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session, new_undo_like_json, [], inbox_url,
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headers, 3, True)
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if not post_result:
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if debug:
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print('WARN: POST unlike failed for c2s to ' + inbox_url)
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return 5
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if debug:
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print('DEBUG: c2s POST unlike success')
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return new_undo_like_json
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def outbox_like(recent_posts_cache: {},
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base_dir: str, http_prefix: str,
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nickname: str, domain: str, port: int,
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message_json: {}, debug: bool) -> None:
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""" When a like request is received by the outbox from c2s
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"""
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if not message_json.get('type'):
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if debug:
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print('DEBUG: like - no type')
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return
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if not message_json['type'] == 'Like':
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if debug:
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print('DEBUG: not a like')
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return
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if not has_object_string(message_json, debug):
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return
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if debug:
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print('DEBUG: c2s like request arrived in outbox')
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message_id = remove_id_ending(message_json['object'])
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domain = remove_domain_port(domain)
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post_filename = locate_post(base_dir, nickname, domain, message_id)
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if not post_filename:
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if debug:
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print('DEBUG: c2s like post not found in inbox or outbox')
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print(message_id)
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return True
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update_likes_collection(recent_posts_cache,
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base_dir, post_filename, message_id,
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message_json['actor'],
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nickname, domain, debug, None)
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if debug:
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print('DEBUG: post liked via c2s - ' + post_filename)
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def outbox_undo_like(recent_posts_cache: {},
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base_dir: str, http_prefix: str,
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nickname: str, domain: str, port: int,
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message_json: {}, debug: bool) -> None:
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""" When an undo like request is received by the outbox from c2s
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"""
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if not message_json.get('type'):
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return
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if not message_json['type'] == 'Undo':
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return
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if not has_object_stringType(message_json, debug):
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return
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if not message_json['object']['type'] == 'Like':
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if debug:
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print('DEBUG: not a undo like')
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return
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if not has_object_string_object(message_json, debug):
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return
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if debug:
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print('DEBUG: c2s undo like request arrived in outbox')
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message_id = remove_id_ending(message_json['object']['object'])
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domain = remove_domain_port(domain)
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post_filename = locate_post(base_dir, nickname, domain, message_id)
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if not post_filename:
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if debug:
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print('DEBUG: c2s undo like post not found in inbox or outbox')
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print(message_id)
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return True
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undo_likes_collection_entry(recent_posts_cache, base_dir, post_filename,
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message_id, message_json['actor'],
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domain, debug, None)
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if debug:
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print('DEBUG: post undo liked via c2s - ' + post_filename)
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def update_likes_collection(recent_posts_cache: {},
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base_dir: str, post_filename: str,
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object_url: str, actor: str,
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nickname: str, domain: str, debug: bool,
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post_json_object: {}) -> None:
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"""Updates the likes collection within a post
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"""
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if not post_json_object:
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post_json_object = load_json(post_filename)
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if not post_json_object:
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return
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# remove any cached version of this post so that the
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# like icon is changed
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remove_post_from_cache(post_json_object, recent_posts_cache)
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cached_post_filename = \
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get_cached_post_filename(base_dir, nickname,
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domain, post_json_object)
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if cached_post_filename:
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if os.path.isfile(cached_post_filename):
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try:
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os.remove(cached_post_filename)
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except OSError:
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print('EX: update_likes_collection unable to delete ' +
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cached_post_filename)
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obj = post_json_object
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if has_object_dict(post_json_object):
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obj = post_json_object['object']
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if not object_url.endswith('/likes'):
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object_url = object_url + '/likes'
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if not obj.get('likes'):
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if debug:
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print('DEBUG: Adding initial like to ' + object_url)
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likes_json = {
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"@context": "https://www.w3.org/ns/activitystreams",
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'id': object_url,
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'type': 'Collection',
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"totalItems": 1,
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'items': [{
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'type': 'Like',
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'actor': actor
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}]
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}
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obj['likes'] = likes_json
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else:
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if not obj['likes'].get('items'):
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obj['likes']['items'] = []
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for like_item in obj['likes']['items']:
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if like_item.get('actor'):
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if like_item['actor'] == actor:
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# already liked
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return
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new_like = {
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'type': 'Like',
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'actor': actor
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}
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obj['likes']['items'].append(new_like)
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it_len = len(obj['likes']['items'])
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obj['likes']['totalItems'] = it_len
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if debug:
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print('DEBUG: saving post with likes added')
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pprint(post_json_object)
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save_json(post_json_object, post_filename)
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