__filename__ = "like.py" __author__ = "Bob Mottram" __license__ = "AGPL3+" __version__ = "1.2.0" __maintainer__ = "Bob Mottram" __email__ = "bob@freedombone.net" __status__ = "Production" from utils import hasUsersPath from utils import getFullDomain from utils import removeIdEnding from utils import urlPermitted from utils import getNicknameFromActor from utils import getDomainFromActor from utils import locatePost from utils import updateLikesCollection from utils import undoLikesCollectionEntry from posts import sendSignedJson from session import postJson from webfinger import webfingerHandle from auth import createBasicAuthHeader from posts import getPersonBox def likedByPerson(postJsonObject: {}, nickname: str, domain: str) -> bool: """Returns True if the given post is liked by the given person """ if noOfLikes(postJsonObject) == 0: return False actorMatch = domain + '/users/' + nickname for item in postJsonObject['object']['likes']['items']: if item['actor'].endswith(actorMatch): return True return False def noOfLikes(postJsonObject: {}) -> int: """Returns the number of likes ona given post """ if not postJsonObject.get('object'): return 0 if not isinstance(postJsonObject['object'], dict): return 0 if not postJsonObject['object'].get('likes'): return 0 if not isinstance(postJsonObject['object']['likes'], dict): return 0 if not postJsonObject['object']['likes'].get('items'): postJsonObject['object']['likes']['items'] = [] postJsonObject['object']['likes']['totalItems'] = 0 return len(postJsonObject['object']['likes']['items']) def _like(recentPostsCache: {}, session, baseDir: str, federationList: [], nickname: str, domain: str, port: int, ccList: [], httpPrefix: str, objectUrl: str, actorLiked: str, clientToServer: bool, sendThreads: [], postLog: [], personCache: {}, cachedWebfingers: {}, debug: bool, projectVersion: str) -> {}: """Creates a like actor is the person doing the liking 'to' might be a specific person (actor) whose post was liked object is typically the url of the message which was liked """ if not urlPermitted(objectUrl, federationList): return None fullDomain = getFullDomain(domain, port) newLikeJson = { "@context": "https://www.w3.org/ns/activitystreams", 'type': 'Like', 'actor': httpPrefix + '://' + fullDomain + '/users/' + nickname, 'object': objectUrl } if ccList: if len(ccList) > 0: newLikeJson['cc'] = ccList # Extract the domain and nickname from a statuses link likedPostNickname = None likedPostDomain = None likedPostPort = None if actorLiked: likedPostNickname = getNicknameFromActor(actorLiked) likedPostDomain, likedPostPort = getDomainFromActor(actorLiked) else: if hasUsersPath(objectUrl): likedPostNickname = getNicknameFromActor(objectUrl) likedPostDomain, likedPostPort = getDomainFromActor(objectUrl) if likedPostNickname: postFilename = locatePost(baseDir, nickname, domain, objectUrl) if not postFilename: print('DEBUG: like baseDir: ' + baseDir) print('DEBUG: like nickname: ' + nickname) print('DEBUG: like domain: ' + domain) print('DEBUG: like objectUrl: ' + objectUrl) return None updateLikesCollection(recentPostsCache, baseDir, postFilename, objectUrl, newLikeJson['actor'], domain, debug) sendSignedJson(newLikeJson, session, baseDir, nickname, domain, port, likedPostNickname, likedPostDomain, likedPostPort, 'https://www.w3.org/ns/activitystreams#Public', httpPrefix, True, clientToServer, federationList, sendThreads, postLog, cachedWebfingers, personCache, debug, projectVersion) return newLikeJson def likePost(recentPostsCache: {}, session, baseDir: str, federationList: [], nickname: str, domain: str, port: int, httpPrefix: str, likeNickname: str, likeDomain: str, likePort: int, ccList: [], likeStatusNumber: int, clientToServer: bool, sendThreads: [], postLog: [], personCache: {}, cachedWebfingers: {}, debug: bool, projectVersion: str) -> {}: """Likes a given status post. This is only used by unit tests """ likeDomain = getFullDomain(likeDomain, likePort) actorLiked = httpPrefix + '://' + likeDomain + '/users/' + likeNickname objectUrl = actorLiked + '/statuses/' + str(likeStatusNumber) return _like(recentPostsCache, session, baseDir, federationList, nickname, domain, port, ccList, httpPrefix, objectUrl, actorLiked, clientToServer, sendThreads, postLog, personCache, cachedWebfingers, debug, projectVersion) def sendLikeViaServer(baseDir: str, session, fromNickname: str, password: str, fromDomain: str, fromPort: int, httpPrefix: str, likeUrl: str, cachedWebfingers: {}, personCache: {}, debug: bool, projectVersion: str) -> {}: """Creates a like via c2s """ if not session: print('WARN: No session for sendLikeViaServer') return 6 fromDomainFull = getFullDomain(fromDomain, fromPort) actor = httpPrefix + '://' + fromDomainFull + '/users/' + fromNickname newLikeJson = { "@context": "https://www.w3.org/ns/activitystreams", 'type': 'Like', 'actor': actor, 'object': likeUrl } handle = httpPrefix + '://' + fromDomainFull + '/@' + fromNickname # lookup the inbox for the To handle wfRequest = webfingerHandle(session, handle, httpPrefix, cachedWebfingers, fromDomain, projectVersion, debug) if not wfRequest: if debug: print('DEBUG: like webfinger failed for ' + handle) return 1 if not isinstance(wfRequest, dict): print('WARN: like webfinger for ' + handle + ' did not return a dict. ' + str(wfRequest)) return 1 postToBox = 'outbox' # get the actor inbox for the To handle (inboxUrl, pubKeyId, pubKey, fromPersonId, sharedInbox, avatarUrl, displayName) = getPersonBox(baseDir, session, wfRequest, personCache, projectVersion, httpPrefix, fromNickname, fromDomain, postToBox, 72873) if not inboxUrl: if debug: print('DEBUG: like no ' + postToBox + ' was found for ' + handle) return 3 if not fromPersonId: if debug: print('DEBUG: like no actor was found for ' + handle) return 4 authHeader = createBasicAuthHeader(fromNickname, password) headers = { 'host': fromDomain, 'Content-type': 'application/json', 'Authorization': authHeader } postResult = postJson(session, newLikeJson, [], inboxUrl, headers, 3, True) if not postResult: if debug: print('WARN: POST like failed for c2s to ' + inboxUrl) return 5 if debug: print('DEBUG: c2s POST like success') return newLikeJson def sendUndoLikeViaServer(baseDir: str, session, fromNickname: str, password: str, fromDomain: str, fromPort: int, httpPrefix: str, likeUrl: str, cachedWebfingers: {}, personCache: {}, debug: bool, projectVersion: str) -> {}: """Undo a like via c2s """ if not session: print('WARN: No session for sendUndoLikeViaServer') return 6 fromDomainFull = getFullDomain(fromDomain, fromPort) actor = httpPrefix + '://' + fromDomainFull + '/users/' + fromNickname newUndoLikeJson = { "@context": "https://www.w3.org/ns/activitystreams", 'type': 'Undo', 'actor': actor, 'object': { 'type': 'Like', 'actor': actor, 'object': likeUrl } } handle = httpPrefix + '://' + fromDomainFull + '/@' + fromNickname # lookup the inbox for the To handle wfRequest = webfingerHandle(session, handle, httpPrefix, cachedWebfingers, fromDomain, projectVersion, debug) if not wfRequest: if debug: print('DEBUG: unlike webfinger failed for ' + handle) return 1 if not isinstance(wfRequest, dict): if debug: print('WARN: unlike webfinger for ' + handle + ' did not return a dict. ' + str(wfRequest)) return 1 postToBox = 'outbox' # get the actor inbox for the To handle (inboxUrl, pubKeyId, pubKey, fromPersonId, sharedInbox, avatarUrl, displayName) = getPersonBox(baseDir, session, wfRequest, personCache, projectVersion, httpPrefix, fromNickname, fromDomain, postToBox, 72625) if not inboxUrl: if debug: print('DEBUG: unlike no ' + postToBox + ' was found for ' + handle) return 3 if not fromPersonId: if debug: print('DEBUG: unlike no actor was found for ' + handle) return 4 authHeader = createBasicAuthHeader(fromNickname, password) headers = { 'host': fromDomain, 'Content-type': 'application/json', 'Authorization': authHeader } postResult = postJson(session, newUndoLikeJson, [], inboxUrl, headers, 3, True) if not postResult: if debug: print('WARN: POST unlike failed for c2s to ' + inboxUrl) return 5 if debug: print('DEBUG: c2s POST unlike success') return newUndoLikeJson def outboxLike(recentPostsCache: {}, baseDir: str, httpPrefix: str, nickname: str, domain: str, port: int, messageJson: {}, debug: bool) -> None: """ When a like request is received by the outbox from c2s """ if not messageJson.get('type'): if debug: print('DEBUG: like - no type') return if not messageJson['type'] == 'Like': if debug: print('DEBUG: not a like') return if not messageJson.get('object'): if debug: print('DEBUG: no object in like') return if not isinstance(messageJson['object'], str): if debug: print('DEBUG: like object is not string') return if debug: print('DEBUG: c2s like request arrived in outbox') messageId = removeIdEnding(messageJson['object']) if ':' in domain: domain = domain.split(':')[0] postFilename = locatePost(baseDir, nickname, domain, messageId) if not postFilename: if debug: print('DEBUG: c2s like post not found in inbox or outbox') print(messageId) return True updateLikesCollection(recentPostsCache, baseDir, postFilename, messageId, messageJson['actor'], domain, debug) if debug: print('DEBUG: post liked via c2s - ' + postFilename) def outboxUndoLike(recentPostsCache: {}, baseDir: str, httpPrefix: str, nickname: str, domain: str, port: int, messageJson: {}, debug: bool) -> None: """ When an undo like request is received by the outbox from c2s """ if not messageJson.get('type'): return if not messageJson['type'] == 'Undo': return if not messageJson.get('object'): return if not isinstance(messageJson['object'], dict): if debug: print('DEBUG: undo like object is not dict') return if not messageJson['object'].get('type'): if debug: print('DEBUG: undo like - no type') return if not messageJson['object']['type'] == 'Like': if debug: print('DEBUG: not a undo like') return if not messageJson['object'].get('object'): if debug: print('DEBUG: no object in undo like') return if not isinstance(messageJson['object']['object'], str): if debug: print('DEBUG: undo like object is not string') return if debug: print('DEBUG: c2s undo like request arrived in outbox') messageId = removeIdEnding(messageJson['object']['object']) if ':' in domain: domain = domain.split(':')[0] postFilename = locatePost(baseDir, nickname, domain, messageId) if not postFilename: if debug: print('DEBUG: c2s undo like post not found in inbox or outbox') print(messageId) return True undoLikesCollectionEntry(recentPostsCache, baseDir, postFilename, messageId, messageJson['actor'], domain, debug) if debug: print('DEBUG: post undo liked via c2s - ' + postFilename)