mirror of https://gitlab.com/bashrc2/epicyon
477 lines
16 KiB
Python
477 lines
16 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 hasObjectString
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from utils import hasObjectStringObject
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from utils import hasObjectStringType
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from utils import removeDomainPort
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from utils import hasObjectDict
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from utils import hasUsersPath
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from utils import getFullDomain
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from utils import removeIdEnding
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from utils import urlPermitted
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from utils import getNicknameFromActor
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from utils import getDomainFromActor
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from utils import locatePost
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from utils import undoLikesCollectionEntry
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from utils import hasGroupType
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from utils import localActorUrl
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from utils import loadJson
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from utils import saveJson
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from utils import removePostFromCache
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from utils import getCachedPostFilename
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from posts import sendSignedJson
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from session import postJson
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from webfinger import webfingerHandle
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from auth import createBasicAuthHeader
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from posts import getPersonBox
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def noOfLikes(postJsonObject: {}) -> int:
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"""Returns the number of likes ona given post
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"""
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obj = postJsonObject
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if hasObjectDict(postJsonObject):
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obj = postJsonObject['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 likedByPerson(postJsonObject: {}, 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 noOfLikes(postJsonObject) == 0:
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return False
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actorMatch = domain + '/users/' + nickname
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obj = postJsonObject
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if hasObjectDict(postJsonObject):
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obj = postJsonObject['object']
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for item in obj['likes']['items']:
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if item['actor'].endswith(actorMatch):
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return True
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return False
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def _like(recentPostsCache: {},
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session, base_dir: str, federationList: [],
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nickname: str, domain: str, port: int,
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ccList: [], http_prefix: str,
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objectUrl: str, actorLiked: str,
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clientToServer: bool,
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sendThreads: [], postLog: [],
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personCache: {}, cachedWebfingers: {},
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debug: bool, projectVersion: str,
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signingPrivateKeyPem: 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 urlPermitted(objectUrl, federationList):
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return None
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fullDomain = getFullDomain(domain, port)
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newLikeJson = {
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"@context": "https://www.w3.org/ns/activitystreams",
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'type': 'Like',
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'actor': localActorUrl(http_prefix, nickname, fullDomain),
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'object': objectUrl
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}
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if ccList:
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if len(ccList) > 0:
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newLikeJson['cc'] = ccList
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# Extract the domain and nickname from a statuses link
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likedPostNickname = None
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likedPostDomain = None
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likedPostPort = None
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groupAccount = False
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if actorLiked:
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likedPostNickname = getNicknameFromActor(actorLiked)
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likedPostDomain, likedPostPort = getDomainFromActor(actorLiked)
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groupAccount = hasGroupType(base_dir, actorLiked, personCache)
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else:
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if hasUsersPath(objectUrl):
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likedPostNickname = getNicknameFromActor(objectUrl)
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likedPostDomain, likedPostPort = getDomainFromActor(objectUrl)
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if '/' + str(likedPostNickname) + '/' in objectUrl:
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actorLiked = \
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objectUrl.split('/' + likedPostNickname + '/')[0] + \
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'/' + likedPostNickname
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groupAccount = hasGroupType(base_dir, actorLiked, personCache)
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if likedPostNickname:
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postFilename = locatePost(base_dir, nickname, domain, objectUrl)
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if not postFilename:
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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 objectUrl: ' + objectUrl)
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return None
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updateLikesCollection(recentPostsCache,
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base_dir, postFilename, objectUrl,
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newLikeJson['actor'],
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nickname, domain, debug, None)
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sendSignedJson(newLikeJson, session, base_dir,
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nickname, domain, port,
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likedPostNickname, likedPostDomain, likedPostPort,
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'https://www.w3.org/ns/activitystreams#Public',
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http_prefix, True, clientToServer, federationList,
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sendThreads, postLog, cachedWebfingers, personCache,
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debug, projectVersion, None, groupAccount,
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signingPrivateKeyPem, 7367374)
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return newLikeJson
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def likePost(recentPostsCache: {},
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session, base_dir: str, federationList: [],
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nickname: str, domain: str, port: int, http_prefix: str,
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likeNickname: str, likeDomain: str, likePort: int,
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ccList: [],
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likeStatusNumber: int, clientToServer: bool,
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sendThreads: [], postLog: [],
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personCache: {}, cachedWebfingers: {},
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debug: bool, projectVersion: str,
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signingPrivateKeyPem: 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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likeDomain = getFullDomain(likeDomain, likePort)
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actorLiked = localActorUrl(http_prefix, likeNickname, likeDomain)
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objectUrl = actorLiked + '/statuses/' + str(likeStatusNumber)
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return _like(recentPostsCache,
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session, base_dir, federationList, nickname, domain, port,
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ccList, http_prefix, objectUrl, actorLiked, clientToServer,
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sendThreads, postLog, personCache, cachedWebfingers,
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debug, projectVersion, signingPrivateKeyPem)
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def sendLikeViaServer(base_dir: str, session,
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fromNickname: str, password: str,
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fromDomain: str, fromPort: int,
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http_prefix: str, likeUrl: str,
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cachedWebfingers: {}, personCache: {},
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debug: bool, projectVersion: str,
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signingPrivateKeyPem: 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 sendLikeViaServer')
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return 6
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fromDomainFull = getFullDomain(fromDomain, fromPort)
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actor = localActorUrl(http_prefix, fromNickname, fromDomainFull)
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newLikeJson = {
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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': likeUrl
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}
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handle = http_prefix + '://' + fromDomainFull + '/@' + fromNickname
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# lookup the inbox for the To handle
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wfRequest = webfingerHandle(session, handle, http_prefix,
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cachedWebfingers,
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fromDomain, projectVersion, debug, False,
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signingPrivateKeyPem)
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if not wfRequest:
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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(wfRequest, dict):
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print('WARN: like webfinger for ' + handle +
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' did not return a dict. ' + str(wfRequest))
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return 1
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postToBox = 'outbox'
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# get the actor inbox for the To handle
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originDomain = fromDomain
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(inboxUrl, pubKeyId, pubKey, fromPersonId, sharedInbox, avatarUrl,
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displayName, _) = getPersonBox(signingPrivateKeyPem,
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originDomain,
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base_dir, session, wfRequest,
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personCache,
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projectVersion, http_prefix,
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fromNickname, fromDomain,
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postToBox, 72873)
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if not inboxUrl:
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if debug:
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print('DEBUG: like no ' + postToBox + ' was found for ' + handle)
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return 3
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if not fromPersonId:
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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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authHeader = createBasicAuthHeader(fromNickname, password)
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headers = {
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'host': fromDomain,
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'Content-type': 'application/json',
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'Authorization': authHeader
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}
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postResult = postJson(http_prefix, fromDomainFull,
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session, newLikeJson, [], inboxUrl,
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headers, 3, True)
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if not postResult:
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if debug:
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print('WARN: POST like failed for c2s to ' + inboxUrl)
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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 newLikeJson
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def sendUndoLikeViaServer(base_dir: str, session,
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fromNickname: str, password: str,
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fromDomain: str, fromPort: int,
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http_prefix: str, likeUrl: str,
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cachedWebfingers: {}, personCache: {},
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debug: bool, projectVersion: str,
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signingPrivateKeyPem: 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 sendUndoLikeViaServer')
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return 6
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fromDomainFull = getFullDomain(fromDomain, fromPort)
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actor = localActorUrl(http_prefix, fromNickname, fromDomainFull)
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newUndoLikeJson = {
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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': likeUrl
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}
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}
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handle = http_prefix + '://' + fromDomainFull + '/@' + fromNickname
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# lookup the inbox for the To handle
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wfRequest = webfingerHandle(session, handle, http_prefix,
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cachedWebfingers,
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fromDomain, projectVersion, debug, False,
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signingPrivateKeyPem)
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if not wfRequest:
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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(wfRequest, 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(wfRequest))
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return 1
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postToBox = 'outbox'
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# get the actor inbox for the To handle
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originDomain = fromDomain
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(inboxUrl, pubKeyId, pubKey, fromPersonId, sharedInbox, avatarUrl,
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displayName, _) = getPersonBox(signingPrivateKeyPem,
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originDomain,
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base_dir, session, wfRequest,
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personCache, projectVersion,
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http_prefix, fromNickname,
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fromDomain, postToBox,
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72625)
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if not inboxUrl:
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if debug:
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print('DEBUG: unlike no ' + postToBox + ' was found for ' + handle)
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return 3
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if not fromPersonId:
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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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authHeader = createBasicAuthHeader(fromNickname, password)
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headers = {
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'host': fromDomain,
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'Content-type': 'application/json',
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'Authorization': authHeader
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}
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postResult = postJson(http_prefix, fromDomainFull,
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session, newUndoLikeJson, [], inboxUrl,
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headers, 3, True)
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if not postResult:
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if debug:
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print('WARN: POST unlike failed for c2s to ' + inboxUrl)
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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 newUndoLikeJson
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def outboxLike(recentPostsCache: {},
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base_dir: str, http_prefix: str,
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nickname: str, domain: str, port: int,
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messageJson: {}, 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 messageJson.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 messageJson['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 hasObjectString(messageJson, 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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messageId = removeIdEnding(messageJson['object'])
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domain = removeDomainPort(domain)
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postFilename = locatePost(base_dir, nickname, domain, messageId)
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if not postFilename:
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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(messageId)
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return True
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updateLikesCollection(recentPostsCache,
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base_dir, postFilename, messageId,
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messageJson['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 - ' + postFilename)
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def outboxUndoLike(recentPostsCache: {},
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base_dir: str, http_prefix: str,
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nickname: str, domain: str, port: int,
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messageJson: {}, 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 messageJson.get('type'):
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return
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if not messageJson['type'] == 'Undo':
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return
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if not hasObjectStringType(messageJson, debug):
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return
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if not messageJson['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 hasObjectStringObject(messageJson, 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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messageId = removeIdEnding(messageJson['object']['object'])
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domain = removeDomainPort(domain)
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postFilename = locatePost(base_dir, nickname, domain, messageId)
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if not postFilename:
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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(messageId)
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return True
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undoLikesCollectionEntry(recentPostsCache, base_dir, postFilename,
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messageId, messageJson['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 - ' + postFilename)
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def updateLikesCollection(recentPostsCache: {},
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base_dir: str, postFilename: str,
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objectUrl: str, actor: str,
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nickname: str, domain: str, debug: bool,
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postJsonObject: {}) -> None:
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"""Updates the likes collection within a post
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"""
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if not postJsonObject:
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postJsonObject = loadJson(postFilename)
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if not postJsonObject:
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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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removePostFromCache(postJsonObject, recentPostsCache)
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cachedPostFilename = getCachedPostFilename(base_dir, nickname,
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domain, postJsonObject)
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if cachedPostFilename:
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if os.path.isfile(cachedPostFilename):
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try:
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os.remove(cachedPostFilename)
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except OSError:
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print('EX: updateLikesCollection unable to delete ' +
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cachedPostFilename)
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obj = postJsonObject
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if hasObjectDict(postJsonObject):
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obj = postJsonObject['object']
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if not objectUrl.endswith('/likes'):
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objectUrl = objectUrl + '/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 ' + objectUrl)
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likesJson = {
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"@context": "https://www.w3.org/ns/activitystreams",
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'id': objectUrl,
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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'] = likesJson
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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 likeItem in obj['likes']['items']:
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if likeItem.get('actor'):
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if likeItem['actor'] == actor:
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# already liked
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return
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newLike = {
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'type': 'Like',
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'actor': actor
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}
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obj['likes']['items'].append(newLike)
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itlen = len(obj['likes']['items'])
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obj['likes']['totalItems'] = itlen
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if debug:
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print('DEBUG: saving post with likes added')
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pprint(postJsonObject)
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saveJson(postJsonObject, postFilename)
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