epicyon/delete.py

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__filename__="delete.py"
__author__="Bob Mottram"
__license__="AGPL3+"
__version__="1.1.0"
__maintainer__="Bob Mottram"
__email__="bob@freedombone.net"
__status__="Production"
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import os
import json
from utils import getStatusNumber
from utils import createOutboxDir
from utils import urlPermitted
from utils import getNicknameFromActor
from utils import getDomainFromActor
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from utils import locatePost
from utils import deletePost
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from utils import removeModerationPostFromIndex
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from posts import sendSignedJson
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from session import postJson
from webfinger import webfingerHandle
from auth import createBasicAuthHeader
from posts import getPersonBox
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def createDelete(session,baseDir: str,federationList: [], \
nickname: str, domain: str, port: int, \
toUrl: str, ccUrl: str, httpPrefix: str, \
objectUrl: str,clientToServer: bool, \
sendThreads: [],postLog: [], \
personCache: {},cachedWebfingers: {}, \
debug: bool) -> {}:
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"""Creates a delete message
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Typically toUrl will be https://www.w3.org/ns/activitystreams#Public
and ccUrl might be a specific person whose post is to be deleted
objectUrl is typically the url of the message, corresponding to url
or atomUri in createPostBase
"""
if not urlPermitted(objectUrl,federationList,"inbox:write"):
return None
if ':' in domain:
domain=domain.split(':')[0]
fullDomain=domain
if port:
if port!=80 and port!=443:
if ':' not in domain:
fullDomain=domain+':'+str(port)
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statusNumber,published=getStatusNumber()
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newDeleteId= \
httpPrefix+'://'+fullDomain+'/users/'+nickname+'/statuses/'+statusNumber
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newDelete={
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"@context": "https://www.w3.org/ns/activitystreams",
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'actor': httpPrefix+'://'+fullDomain+'/users/'+nickname,
'atomUri': httpPrefix+'://'+fullDomain+'/users/'+nickname+'/statuses/'+statusNumber,
'cc': [],
'id': newDeleteId+'/activity',
'object': objectUrl,
'published': published,
'to': [toUrl],
'type': 'Delete'
}
if ccUrl:
if len(ccUrl)>0:
newDelete['cc']=[ccUrl]
deleteNickname=None
deleteDomain=None
deletePort=None
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if '/users/' in objectUrl or \
'/channel/' in objectUrl or \
'/profile/' in objectUrl:
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deleteNickname=getNicknameFromActor(objectUrl)
deleteDomain,deletePort=getDomainFromActor(objectUrl)
if deleteNickname and deleteDomain:
sendSignedJson(newDelete,session,baseDir, \
nickname,domain,port, \
deleteNickname,deleteDomain,deletePort, \
'https://www.w3.org/ns/activitystreams#Public', \
httpPrefix,True,clientToServer,federationList, \
sendThreads,postLog,cachedWebfingers,personCache,debug)
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return newDelete
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def sendDeleteViaServer(baseDir: str,session, \
fromNickname: str,password: str, \
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fromDomain: str,fromPort: int, \
httpPrefix: str,deleteObjectUrl: str, \
cachedWebfingers: {},personCache: {}, \
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debug: bool,projectVersion: str) -> {}:
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"""Creates a delete request message via c2s
"""
if not session:
print('WARN: No session for sendDeleteViaServer')
return 6
fromDomainFull=fromDomain
if fromPort:
if fromPort!=80 and fromPort!=443:
if ':' not in fromDomain:
fromDomainFull=fromDomain+':'+str(fromPort)
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toUrl='https://www.w3.org/ns/activitystreams#Public'
ccUrl=httpPrefix+'://'+fromDomainFull+'/users/'+fromNickname+'/followers'
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newDeleteJson={
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"@context": "https://www.w3.org/ns/activitystreams",
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'actor': httpPrefix+'://'+fromDomainFull+'/users/'+fromNickname,
'cc': [ccUrl],
'object': deleteObjectUrl,
'to': [toUrl],
'type': 'Delete'
}
handle=httpPrefix+'://'+fromDomainFull+'/@'+fromNickname
# lookup the inbox for the To handle
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wfRequest= \
webfingerHandle(session,handle,httpPrefix,cachedWebfingers, \
fromDomain,projectVersion)
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if not wfRequest:
if debug:
print('DEBUG: announce webfinger failed for '+handle)
return 1
postToBox='outbox'
# get the actor inbox for the To handle
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inboxUrl,pubKeyId,pubKey,fromPersonId,sharedInbox,capabilityAcquisition,avatarUrl,displayName= \
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getPersonBox(baseDir,session,wfRequest,personCache, \
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projectVersion,httpPrefix,fromNickname, \
fromDomain,postToBox)
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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
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authHeader=createBasicAuthHeader(fromNickname,password)
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headers={
'host': fromDomain, \
'Content-type': 'application/json', \
'Authorization': authHeader
}
postResult= \
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postJson(session,newDeleteJson,[],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 delete request success')
return newDeleteJson
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def deletePublic(session,baseDir: str,federationList: [], \
nickname: str, domain: str, port: int, httpPrefix: str, \
objectUrl: str,clientToServer: bool, \
sendThreads: [],postLog: [], \
personCache: {},cachedWebfingers: {}, \
debug: bool) -> {}:
"""Makes a public delete activity
"""
fromDomain=domain
if port:
if port!=80 and port!=443:
if ':' not in domain:
fromDomain=domain+':'+str(port)
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toUrl='https://www.w3.org/ns/activitystreams#Public'
ccUrl=httpPrefix+'://'+fromDomain+'/users/'+nickname+'/followers'
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return createDelete(session,baseDir,federationList, \
nickname,domain,port, \
toUrl,ccUrl,httpPrefix, \
objectUrl,clientToServer, \
sendThreads,postLog, \
personCache,cachedWebfingers, \
debug)
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def deletePostPub(session,baseDir: str,federationList: [], \
nickname: str, domain: str, port: int, httpPrefix: str, \
deleteNickname: str, deleteDomain: str, \
deletePort: int, deleteHttpsPrefix: str, \
deleteStatusNumber: int,clientToServer: bool, \
sendThreads: [],postLog: [], \
personCache: {},cachedWebfingers: {}, \
debug: bool) -> {}:
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"""Deletes a given status post
"""
deletedDomain=deleteDomain
if deletePort:
if deletePort!=80 and deletePort!=443:
if ':' not in deletedDomain:
deletedDomain=deletedDomain+':'+str(deletePort)
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objectUrl= \
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deleteHttpsPrefix + '://'+deletedDomain+'/users/'+ \
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deleteNickname+'/statuses/'+str(deleteStatusNumber)
return deletePublic(session,baseDir,federationList, \
nickname,domain,port,httpPrefix, \
objectUrl,clientToServer, \
sendThreads,postLog, \
personCache,cachedWebfingers, \
debug)
def outboxDelete(baseDir: str,httpPrefix: str, \
nickname: str,domain: str, \
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messageJson: {},debug: bool,
allowDeletion: bool) -> None:
""" When a delete request is received by the outbox from c2s
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"""
if not messageJson.get('type'):
if debug:
print('DEBUG: delete - no type')
return
if not messageJson['type']=='Delete':
if debug:
print('DEBUG: not a delete')
return
if not messageJson.get('object'):
if debug:
print('DEBUG: no object in delete')
return
if not isinstance(messageJson['object'], str):
if debug:
print('DEBUG: delete object is not string')
return
if debug:
print('DEBUG: c2s delete request arrived in outbox')
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deletePrefix=httpPrefix+'://'+domain
if not allowDeletion and \
(not messageJson['object'].startswith(deletePrefix) or \
not messageJson['actor'].startswith(deletePrefix)):
if debug:
print('DEBUG: delete not permitted from other instances')
return
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messageId=messageJson['object'].replace('/activity','')
if '/statuses/' not in messageId:
if debug:
print('DEBUG: c2s delete object is not a status')
return
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if '/users/' not in messageId and \
'/channel/' not in messageId and \
'/profile/' not in messageId:
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if debug:
print('DEBUG: c2s delete object has no nickname')
return
deleteNickname=getNicknameFromActor(messageId)
if deleteNickname!=nickname:
if debug:
print("DEBUG: you can't delete a post which wasn't created by you (nickname does not match)")
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return
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deleteDomain,deletePort=getDomainFromActor(messageId)
if ':' in domain:
domain=domain.split(':')[0]
if deleteDomain!=domain:
if debug:
print("DEBUG: you can't delete a post which wasn't created by you (domain does not match)")
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return
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removeModerationPostFromIndex(baseDir,messageId,debug)
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postFilename=locatePost(baseDir,deleteNickname,deleteDomain,messageId)
if not postFilename:
if debug:
print('DEBUG: c2s delete post not found in inbox or outbox')
print(messageId)
return True
deletePost(baseDir,httpPrefix,deleteNickname,deleteDomain,postFilename,debug)
if debug:
print('DEBUG: post deleted via c2s - '+postFilename)