epicyon/delete.py

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__filename__ = "delete.py"
__author__ = "Bob Mottram"
__license__ = "AGPL3+"
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__version__ = "1.2.0"
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__maintainer__ = "Bob Mottram"
__email__ = "bob@freedombone.net"
__status__ = "Production"
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__module_group__ = "ActivityPub"
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import os
from datetime import datetime
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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 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 session import postJson
from webfinger import webfingerHandle
from auth import createBasicAuthHeader
from posts import getPersonBox
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def sendDeleteViaServer(baseDir: str, session,
fromNickname: str, password: str,
fromDomain: str, fromPort: int,
httpPrefix: str, deleteObjectUrl: str,
cachedWebfingers: {}, personCache: {},
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
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fromDomainFull = getFullDomain(fromDomain, fromPort)
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actor = httpPrefix + '://' + fromDomainFull + \
'/users/' + fromNickname
toUrl = 'https://www.w3.org/ns/activitystreams#Public'
ccUrl = actor + '/followers'
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newDeleteJson = {
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"@context": "https://www.w3.org/ns/activitystreams",
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'actor': actor,
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'cc': [ccUrl],
'object': deleteObjectUrl,
'to': [toUrl],
'type': 'Delete'
}
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handle = httpPrefix + '://' + fromDomainFull + '/@' + fromNickname
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# lookup the inbox for the To handle
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wfRequest = \
webfingerHandle(session, handle, httpPrefix, cachedWebfingers,
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fromDomain, projectVersion, debug)
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if not wfRequest:
if debug:
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print('DEBUG: delete 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: delete webfinger for ' + handle +
' 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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(inboxUrl, pubKeyId, pubKey,
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fromPersonId, sharedInbox, avatarUrl,
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displayName) = getPersonBox(baseDir, session, wfRequest, personCache,
projectVersion, httpPrefix, fromNickname,
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fromDomain, postToBox, 53036)
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if not inboxUrl:
if debug:
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print('DEBUG: delete no ' + postToBox +
' was found for ' + handle)
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return 3
if not fromPersonId:
if debug:
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print('DEBUG: delete 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 = {
'host': fromDomain,
'Content-type': 'application/json',
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'Authorization': authHeader
}
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postResult = \
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postJson(session, newDeleteJson, [], inboxUrl, headers, 3, True)
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if not postResult:
if debug:
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print('DEBUG: POST delete failed for c2s to ' + inboxUrl)
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return 5
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if debug:
print('DEBUG: c2s POST delete request success')
return newDeleteJson
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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
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"""
if not messageJson.get('type'):
if debug:
print('DEBUG: delete - no type')
return
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if not messageJson['type'] == 'Delete':
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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))):
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if debug:
print('DEBUG: delete not permitted from other instances')
return
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messageId = removeIdEnding(messageJson['object'])
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if '/statuses/' not in messageId:
if debug:
print('DEBUG: c2s delete object is not a status')
return
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if not hasUsersPath(messageId):
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if debug:
print('DEBUG: c2s delete object has no nickname')
return
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deleteNickname = getNicknameFromActor(messageId)
if deleteNickname != nickname:
if debug:
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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:
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domain = domain.split(':')[0]
if deleteDomain != domain:
if debug:
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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)
postFilename = locatePost(baseDir, deleteNickname, deleteDomain,
messageId)
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if not postFilename:
if debug:
print('DEBUG: c2s delete post not found in inbox or outbox')
print(messageId)
return True
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deletePost(baseDir, httpPrefix, deleteNickname, deleteDomain,
postFilename, debug, recentPostsCache)
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if debug:
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print('DEBUG: post deleted via c2s - ' + postFilename)
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def removeOldHashtags(baseDir: str, maxMonths: int) -> str:
"""Remove old hashtags
"""
if maxMonths > 11:
maxMonths = 11
maxDaysSinceEpoch = \
(datetime.utcnow() - datetime(1970, 1 + maxMonths, 1)).days
removeHashtags = []
for subdir, dirs, files in os.walk(baseDir + '/tags'):
for f in files:
tagsFilename = os.path.join(baseDir + '/tags', f)
if not os.path.isfile(tagsFilename):
continue
# get last modified datetime
modTimesinceEpoc = os.path.getmtime(tagsFilename)
lastModifiedDate = datetime.fromtimestamp(modTimesinceEpoc)
fileDaysSinceEpoch = (lastModifiedDate - datetime(1970, 1, 1)).days
# check of the file is too old
if fileDaysSinceEpoch < maxDaysSinceEpoch:
removeHashtags.append(tagsFilename)
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break
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for removeFilename in removeHashtags:
try:
os.remove(removeFilename)
except BaseException:
pass