epicyon/delete.py

298 lines
10 KiB
Python

__filename__ = "delete.py"
__author__ = "Bob Mottram"
__license__ = "AGPL3+"
__version__ = "1.1.0"
__maintainer__ = "Bob Mottram"
__email__ = "bob@freedombone.net"
__status__ = "Production"
from utils import removeIdEnding
from utils import getStatusNumber
from utils import urlPermitted
from utils import getNicknameFromActor
from utils import getDomainFromActor
from utils import locatePost
from utils import deletePost
from utils import removeModerationPostFromIndex
from posts import sendSignedJson
from session import postJson
from webfinger import webfingerHandle
from auth import createBasicAuthHeader
from posts import getPersonBox
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) -> {}:
"""Creates a delete message
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):
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)
statusNumber, published = getStatusNumber()
newDeleteId = \
httpPrefix + '://' + fullDomain + '/users/' + \
nickname + '/statuses/' + statusNumber
newDelete = {
"@context": "https://www.w3.org/ns/activitystreams",
'actor': httpPrefix+'://'+fullDomain+'/users/'+nickname,
'atomUri': newDeleteId,
'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
if '/users/' in objectUrl or \
'/accounts/' in objectUrl or \
'/channel/' in objectUrl or \
'/profile/' in objectUrl:
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)
return newDelete
def sendDeleteViaServer(baseDir: str, session,
fromNickname: str, password: str,
fromDomain: str, fromPort: int,
httpPrefix: str, deleteObjectUrl: str,
cachedWebfingers: {}, personCache: {},
debug: bool, projectVersion: str) -> {}:
"""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)
actor = httpPrefix + '://' + fromDomainFull + \
'/users/' + fromNickname
toUrl = 'https://www.w3.org/ns/activitystreams#Public'
ccUrl = actor + '/followers'
newDeleteJson = {
"@context": "https://www.w3.org/ns/activitystreams",
'actor': actor,
'cc': [ccUrl],
'object': deleteObjectUrl,
'to': [toUrl],
'type': 'Delete'
}
handle = httpPrefix + '://' + fromDomainFull + '/@' + fromNickname
# lookup the inbox for the To handle
wfRequest = \
webfingerHandle(session, handle, httpPrefix, cachedWebfingers,
fromDomain, projectVersion)
if not wfRequest:
if debug:
print('DEBUG: announce webfinger failed for ' + handle)
return 1
if not isinstance(wfRequest, dict):
print('WARN: 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)
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, newDeleteJson, [], inboxUrl, headers)
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
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)
toUrl = 'https://www.w3.org/ns/activitystreams#Public'
ccUrl = httpPrefix + '://' + fromDomain + \
'/users/' + nickname + '/followers'
return createDelete(session, baseDir, federationList,
nickname, domain, port,
toUrl, ccUrl, httpPrefix,
objectUrl, clientToServer,
sendThreads, postLog,
personCache, cachedWebfingers,
debug)
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) -> {}:
"""Deletes a given status post
"""
deletedDomain = deleteDomain
if deletePort:
if deletePort != 80 and deletePort != 443:
if ':' not in deletedDomain:
deletedDomain = deletedDomain + ':' + str(deletePort)
objectUrl = \
deleteHttpsPrefix + '://' + deletedDomain + '/users/' + \
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,
messageJson: {}, debug: bool,
allowDeletion: bool,
recentPostsCache: {}) -> None:
""" When a delete request is received by the outbox from c2s
"""
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')
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
messageId = removeIdEnding(messageJson['object'])
if '/statuses/' not in messageId:
if debug:
print('DEBUG: c2s delete object is not a status')
return
if '/users/' not in messageId and \
'/accounts/' not in messageId and \
'/channel/' not in messageId and \
'/profile/' not in messageId:
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)")
return
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)")
return
removeModerationPostFromIndex(baseDir, messageId, debug)
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, recentPostsCache)
if debug:
print('DEBUG: post deleted via c2s - ' + postFilename)