mirror of https://gitlab.com/bashrc2/epicyon
				
				
				
			
		
			
				
	
	
		
			504 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			504 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			Python
		
	
	
__filename__ = "like.py"
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__author__ = "Bob Mottram"
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__license__ = "AGPL3+"
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__version__ = "1.5.0"
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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_string_type
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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 utils import get_actor_from_post
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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 on a 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: [], post_log: [],
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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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                 curr_domain: str,
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                 onion_domain: str, i2p_domain: str,
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                 sites_unavailable: [],
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                 system_language: 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 liked_post_nickname and liked_post_domain:
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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('/' +
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                                         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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        actor_url = get_actor_from_post(new_like_json)
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        update_likes_collection(recent_posts_cache,
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                                base_dir, post_filename, object_url,
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                                actor_url,
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                                nickname, domain, debug, None)
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        extra_headers = {}
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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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                         http_prefix, client_to_server, federation_list,
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                         send_threads, post_log, 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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                         curr_domain, onion_domain, i2p_domain,
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                         extra_headers, sites_unavailable,
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                         system_language)
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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: [], post_log: [],
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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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              curr_domain: str, onion_domain: str, i2p_domain: str,
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              sites_unavailable: [],
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              system_language: 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, post_log, person_cache,
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                        cached_webfingers,
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                        debug, project_version, signing_priv_key_pem,
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                        curr_domain, onion_domain, i2p_domain,
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                        sites_unavailable, system_language)
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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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                         system_language: 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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                            system_language)
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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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                              system_language: 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, system_language)
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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, nickname: str, domain: str,
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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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    actor_url = get_actor_from_post(message_json)
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    update_likes_collection(recent_posts_cache,
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                            base_dir, post_filename, message_id,
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                            actor_url,
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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, nickname: str, domain: str,
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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_string_type(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)
 | 
						|
    post_filename = locate_post(base_dir, nickname, domain, message_id)
 | 
						|
    if not post_filename:
 | 
						|
        if debug:
 | 
						|
            print('DEBUG: c2s undo like post not found in inbox or outbox')
 | 
						|
            print(message_id)
 | 
						|
        return True
 | 
						|
    actor_url = get_actor_from_post(message_json)
 | 
						|
    undo_likes_collection_entry(recent_posts_cache, base_dir, post_filename,
 | 
						|
                                message_id, actor_url,
 | 
						|
                                domain, debug, None)
 | 
						|
    if debug:
 | 
						|
        print('DEBUG: post undo liked via c2s - ' + post_filename)
 | 
						|
 | 
						|
 | 
						|
def update_likes_collection(recent_posts_cache: {},
 | 
						|
                            base_dir: str, post_filename: str,
 | 
						|
                            object_url: str, actor: str,
 | 
						|
                            nickname: str, domain: str, debug: bool,
 | 
						|
                            post_json_object: {}) -> None:
 | 
						|
    """Updates the likes collection within a post
 | 
						|
    """
 | 
						|
    if not post_json_object:
 | 
						|
        post_json_object = load_json(post_filename)
 | 
						|
    if not post_json_object:
 | 
						|
        return
 | 
						|
 | 
						|
    # remove any cached version of this post so that the
 | 
						|
    # like icon is changed
 | 
						|
    remove_post_from_cache(post_json_object, recent_posts_cache)
 | 
						|
    cached_post_filename = \
 | 
						|
        get_cached_post_filename(base_dir, nickname,
 | 
						|
                                 domain, post_json_object)
 | 
						|
    if cached_post_filename:
 | 
						|
        if os.path.isfile(cached_post_filename):
 | 
						|
            try:
 | 
						|
                os.remove(cached_post_filename)
 | 
						|
            except OSError:
 | 
						|
                print('EX: update_likes_collection unable to delete ' +
 | 
						|
                      cached_post_filename)
 | 
						|
 | 
						|
    obj = post_json_object
 | 
						|
    if has_object_dict(post_json_object):
 | 
						|
        obj = post_json_object['object']
 | 
						|
 | 
						|
    if not object_url.endswith('/likes'):
 | 
						|
        object_url = object_url + '/likes'
 | 
						|
    if not obj.get('likes'):
 | 
						|
        if debug:
 | 
						|
            print('DEBUG: Adding initial like to ' + object_url)
 | 
						|
        likes_json = {
 | 
						|
            "@context": "https://www.w3.org/ns/activitystreams",
 | 
						|
            'id': object_url,
 | 
						|
            'type': 'Collection',
 | 
						|
            "totalItems": 1,
 | 
						|
            'items': [{
 | 
						|
                'type': 'Like',
 | 
						|
                'actor': actor
 | 
						|
            }]
 | 
						|
        }
 | 
						|
        obj['likes'] = likes_json
 | 
						|
    else:
 | 
						|
        if not obj['likes'].get('items'):
 | 
						|
            obj['likes']['items'] = []
 | 
						|
        for like_item in obj['likes']['items']:
 | 
						|
            if like_item.get('actor'):
 | 
						|
                if like_item['actor'] == actor:
 | 
						|
                    # already liked
 | 
						|
                    return
 | 
						|
        new_like = {
 | 
						|
            'type': 'Like',
 | 
						|
            'actor': actor
 | 
						|
        }
 | 
						|
        obj['likes']['items'].append(new_like)
 | 
						|
        it_len = len(obj['likes']['items'])
 | 
						|
        obj['likes']['totalItems'] = it_len
 | 
						|
 | 
						|
    if debug:
 | 
						|
        print('DEBUG: saving post with likes added')
 | 
						|
        pprint(post_json_object)
 | 
						|
    save_json(post_json_object, post_filename)
 |