__filename__ = "like.py" __author__ = "Bob Mottram" __license__ = "AGPL3+" __version__ = "0.0.1" __maintainer__ = "Bob Mottram" __email__ = "bob@freedombone.net" __status__ = "Production" import json import commentjson from pprint import pprint from utils import urlPermitted from utils import getNicknameFromActor from utils import getDomainFromActor from utils import locatePost from posts import sendSignedJson from session import postJson from webfinger import webfingerHandle from auth import createBasicAuthHeader from posts import getPersonBox def undoLikesCollectionEntry(postFilename: str,objectUrl: str, actor: str,debug: bool) -> None: """Undoes a like for a particular actor """ with open(postFilename, 'r') as fp: postJsonObject=commentjson.load(fp) if not postJsonObject.get('type'): if postJsonObject['type']!='Create': return return if not postJsonObject.get('object'): if debug: pprint(postJsonObject) print('DEBUG: post '+objectUrl+' has no object') return if not postJsonObject['object'].get('likes'): return if not postJsonObject['object']['likes'].get('items'): return totalItems=0 if postJsonObject['object']['likes'].get('totalItems'): totalItems=postJsonObject['object']['likes']['totalItems'] itemFound=False for likeItem in postJsonObject['object']['likes']['items']: if likeItem.get('actor'): if likeItem['actor']==actor: if debug: print('DEBUG: like was removed for '+actor) postJsonObject['object']['likes']['items'].remove(likeItem) itemFound=True break if itemFound: if totalItems==1: if debug: print('DEBUG: likes was removed from post') postJsonObject['object'].remove(postJsonObject['object']['likes']) else: postJsonObject['object']['likes']['totalItems']=len(postJsonObject['likes']['items']) with open(postFilename, 'w') as fp: commentjson.dump(postJsonObject, fp, indent=4, sort_keys=True) def likedByPerson(postJsonObject: {}, nickname: str,domain: str) -> bool: """Returns True if the given post is liked by the given actor """ if not postJsonObject.get('object'): return False if not isinstance(postJsonObject['object'], dict): return False if not postJsonObject['object'].get('likes'): return False actorMatch=domain+'/users/'+nickname for item in postJsonObject['object']['likes']['items']: if item['actor'].endswith(actorMatch): return True return False def updateLikesCollection(postFilename: str,objectUrl: str, actor: str,debug: bool) -> None: """Updates the likes collection within a post """ with open(postFilename, 'r') as fp: postJsonObject=commentjson.load(fp) if not postJsonObject.get('object'): if debug: pprint(postJsonObject) print('DEBUG: post '+objectUrl+' has no object') return if not objectUrl.endswith('/likes'): objectUrl=objectUrl+'/likes' if not postJsonObject['object'].get('likes'): if debug: print('DEBUG: Adding initial likes to '+objectUrl) likesJson = { 'id': objectUrl, 'type': 'Collection', "totalItems": 1, 'items': [{ 'type': 'Like', 'actor': actor }] } postJsonObject['object']['likes']=likesJson else: if postJsonObject['object']['likes'].get('items'): for likeItem in postJsonObject['likes']['items']: if likeItem.get('actor'): if likeItem['actor']==actor: return newLike={ 'type': 'Like', 'actor': actor } postJsonObject['object']['likes']['items'].append(newLike) postJsonObject['object']['likes']['totalItems']=len(postJsonObject['likes']['items']) else: if debug: print('DEBUG: likes section of post has no items list') if debug: print('DEBUG: saving post with likes added') pprint(postJsonObject) with open(postFilename, 'w') as fp: commentjson.dump(postJsonObject, fp, indent=4, sort_keys=True) def like(session,baseDir: str,federationList: [],nickname: str,domain: str,port: int, \ ccList: [],httpPrefix: str,objectUrl: str,clientToServer: bool, \ sendThreads: [],postLog: [],personCache: {},cachedWebfingers: {}, \ debug: bool) -> {}: """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,"inbox:write"): return None fullDomain=domain if port!=80 and port!=443: if ':' not in domain: fullDomain=domain+':'+str(port) newLikeJson = { 'type': 'Like', 'actor': httpPrefix+'://'+fullDomain+'/users/'+nickname, 'object': objectUrl, 'to': [httpPrefix+'://'+fullDomain+'/users/'+nickname+'/followers'], 'cc': [] } 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 '/users/' in objectUrl: likedPostNickname=getNicknameFromActor(objectUrl) likedPostDomain,likedPostPort=getDomainFromActor(objectUrl) if likedPostNickname: postFilename=locatePost(baseDir,nickname,domain,objectUrl) if not postFilename: return None updateLikesCollection(postFilename,objectUrl,newLikeJson['actor'],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) return newLikeJson def likePost(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) -> {}: """Likes a given status post """ likeDomain=likeDomain if likePort!=80 and likePort!=443: likeDomain=likeDomain+':'+str(likePort) objectUrl = \ httpPrefix + '://'+likeDomain+'/users/'+likeNickname+ \ '/statuses/'+str(likeStatusNumber) if likePort!=80 and likePort!=443: ccUrl=httpPrefix+'://'+likeDomain+':'+str(likePort)+'/users/'+likeNickname else: ccUrl=httpPrefix+'://'+likeDomain+'/users/'+likeNickname return like(session,baseDir,federationList,nickname,domain,port, \ ccList,httpPrefix,objectUrl,clientToServer, \ sendThreads,postLog,personCache,cachedWebfingers,debug) def undolike(session,baseDir: str,federationList: [],nickname: str,domain: str,port: int, \ ccList: [],httpPrefix: str,objectUrl: str,clientToServer: bool, \ sendThreads: [],postLog: [],personCache: {},cachedWebfingers: {}, \ debug: bool) -> {}: """Removes 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,"inbox:write"): return None fullDomain=domain if port!=80 and port!=443: if ':' not in domain: fullDomain=domain+':'+str(port) newUndoLikeJson = { 'type': 'Undo', 'actor': httpPrefix+'://'+fullDomain+'/users/'+nickname, 'object': { 'type': 'Like', 'actor': httpPrefix+'://'+fullDomain+'/users/'+nickname, 'object': objectUrl, 'to': [httpPrefix+'://'+fullDomain+'/users/'+nickname+'/followers'], 'cc': [] }, 'to': [httpPrefix+'://'+fullDomain+'/users/'+nickname+'/followers'], 'cc': [] } if ccList: if len(ccList)>0: newUndoLikeJson['cc']=ccList newUndoLikeJson['object']['cc']=ccList # Extract the domain and nickname from a statuses link likedPostNickname=None likedPostDomain=None likedPostPort=None if '/users/' in objectUrl: likedPostNickname=getNicknameFromActor(objectUrl) likedPostDomain,likedPostPort=getDomainFromActor(objectUrl) if likedPostNickname: postFilename=locatePost(baseDir,nickname,domain,objectUrl) if not postFilename: return None undoLikesCollectionEntry(postFilename,objectUrl,newLikeJson['actor'],debug) sendSignedJson(newUndoLikeJson,session,baseDir, \ nickname,domain,port, \ likedPostNickname,likedPostDomain,likedPostPort, \ 'https://www.w3.org/ns/activitystreams#Public', \ httpPrefix,True,clientToServer,federationList, \ sendThreads,postLog,cachedWebfingers,personCache,debug) else: return None return newUndoLikeJson def undoLikePost(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) -> {}: """Removes a liked post """ likeDomain=likeDomain if likePort!=80 and likePort!=443: likeDomain=likeDomain+':'+str(likePort) objectUrl = \ httpPrefix + '://'+likeDomain+'/users/'+likeNickname+ \ '/statuses/'+str(likeStatusNumber) if likePort!=80 and likePort!=443: ccUrl=httpPrefix+'://'+likeDomain+':'+str(likePort)+'/users/'+likeNickname else: ccUrl=httpPrefix+'://'+likeDomain+'/users/'+likeNickname return undoLike(session,baseDir,federationList,nickname,domain,port, \ ccList,httpPrefix,objectUrl,clientToServer, \ sendThreads,postLog,personCache,cachedWebfingers,debug) def sendLikeViaServer(session,fromNickname: str,password: str, fromDomain: str,fromPort: int, \ httpPrefix: str,likeUrl: str, \ cachedWebfingers: {},personCache: {}, \ debug: bool) -> {}: """Creates a like via c2s """ if not session: print('WARN: No session for sendLikeViaServer') return 6 fromDomainFull=fromDomain if fromPort!=80 and fromPort!=443: fromDomainFull=fromDomain+':'+str(fromPort) toUrl = 'https://www.w3.org/ns/activitystreams#Public' ccUrl = httpPrefix + '://'+fromDomainFull+'/users/'+fromNickname+'/followers' newLikeJson = { 'type': 'Like', 'actor': httpPrefix+'://'+fromDomainFull+'/users/'+fromNickname, 'object': likeUrl, 'to': [toUrl], 'cc': [ccUrl] } handle=httpPrefix+'://'+fromDomainFull+'/@'+fromNickname # lookup the inbox for the To handle wfRequest = webfingerHandle(session,handle,httpPrefix,cachedWebfingers) if not wfRequest: if debug: print('DEBUG: announce webfinger failed for '+handle) return 1 postToBox='outbox' # get the actor inbox for the To handle inboxUrl,pubKeyId,pubKey,fromPersonId,sharedInbox,capabilityAcquisition,avatarUrl,preferredName = \ getPersonBox(session,wfRequest,personCache,postToBox) if not inboxUrl: if debug: print('DEBUG: No '+postToBox+' was found for '+handle) return 3 if not fromPersonId: if debug: print('DEBUG: 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,"inbox:write") #if not postResult: # if debug: # print('DEBUG: POST announce failed for c2s to '+inboxUrl) # return 5 if debug: print('DEBUG: c2s POST like success') return newLikeJson def sendUndoLikeViaServer(session,fromNickname: str,password: str, fromDomain: str,fromPort: int, \ httpPrefix: str,likeUrl: str, \ cachedWebfingers: {},personCache: {}, \ debug: bool) -> {}: """Undo a like via c2s """ if not session: print('WARN: No session for sendUndoLikeViaServer') return 6 fromDomainFull=fromDomain if fromPort!=80 and fromPort!=443: fromDomainFull=fromDomain+':'+str(fromPort) toUrl = 'https://www.w3.org/ns/activitystreams#Public' ccUrl = httpPrefix + '://'+fromDomainFull+'/users/'+fromNickname+'/followers' newUndoLikeJson = { 'type': 'Undo', 'actor': httpPrefix+'://'+fromDomainFull+'/users/'+fromNickname, 'object': { 'type': 'Like', 'actor': httpPrefix+'://'+fromDomainFull+'/users/'+fromNickname, 'object': likeUrl, 'to': [toUrl], 'cc': [ccUrl] } } handle=httpPrefix+'://'+fromDomainFull+'/@'+fromNickname # lookup the inbox for the To handle wfRequest = webfingerHandle(session,handle,httpPrefix,cachedWebfingers) if not wfRequest: if debug: print('DEBUG: announce webfinger failed for '+handle) return 1 postToBox='outbox' # get the actor inbox for the To handle inboxUrl,pubKeyId,pubKey,fromPersonId,sharedInbox,capabilityAcquisition,avatarUrl,preferredName = \ getPersonBox(session,wfRequest,personCache,postToBox) if not inboxUrl: if debug: print('DEBUG: No '+postToBox+' was found for '+handle) return 3 if not fromPersonId: if debug: print('DEBUG: 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,"inbox:write") #if not postResult: # if debug: # print('DEBUG: POST announce failed for c2s to '+inboxUrl) # return 5 if debug: print('DEBUG: c2s POST undo like success') return newUndoLikeJson def outboxLike(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=messageJson['object'].replace('/activity','') if '/statuses/' not in messageId: if debug: print('DEBUG: c2s like object is not a status') return if '/users/' not in messageId: if debug: print('DEBUG: c2s like object has no nickname') return 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(postFilename,messageId,messageJson['actor'],debug) if debug: print('DEBUG: post liked via c2s - '+postFilename) def outboxUndoLike(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'): if debug: print('DEBUG: undo like - no type') return if not messageJson['type']=='Undo': if debug: print('DEBUG: not an undo of Like') return if not messageJson.get('object'): if debug: print('DEBUG: no object in undo like') return if not isinstance(messageJson['object']['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=messageJson['object']['object'].replace('/activity','') if '/statuses/' not in messageId: if debug: print('DEBUG: c2s undo like object is not a status') return if '/users/' not in messageId: if debug: print('DEBUG: c2s undo like object has no nickname') return 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(postFilename,messageId,messageJson['actor'],debug) if debug: print('DEBUG: post undo liked via c2s - '+postFilename)