epicyon/blocking.py

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2019-07-14 19:27:13 +00:00
__filename__ = "blocking.py"
__author__ = "Bob Mottram"
__license__ = "AGPL3+"
__version__ = "0.0.1"
__maintainer__ = "Bob Mottram"
__email__ = "bob@freedombone.net"
__status__ = "Production"
import os
def addBlock(baseDir: str,nickname: str,domain: str, \
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blockNickname: str,blockDomain: str) -> bool:
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"""Block the given account
"""
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if ':' in domain:
domain=domain.split(':')[0]
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blockingFilename=baseDir+'/accounts/'+nickname+'@'+domain+'/blocking.txt'
blockHandle=blockNickName+'@'+blockDomain
if os.path.isfile(blockingFilename):
if blockHandle in open(blockingFilename).read():
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return False
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blockFile=open(blockingFilename, "a+")
blockFile.write(blockHandle+'\n')
blockFile.close()
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return True
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def removeBlock(baseDir: str,nickname: str,domain: str, \
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unblockNickname: str,unblockDomain: str) -> bool:
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"""Unblock the given account
"""
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if ':' in domain:
domain=domain.split(':')[0]
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unblockingFilename=baseDir+'/accounts/'+nickname+'@'+domain+'/blocking.txt'
unblockHandle=unblockNickName+'@'+unblockDomain
if os.path.isfile(unblockingFilename):
if unblockHandle in open(unblockingFilename).read():
with open(unblockingFilename, 'r') as fp:
with open(unblockingFilename+'.new', 'w') as fpnew:
for line in fp:
handle=line.replace('\n','')
if unblockHandle not in line:
fpnew.write(handle+'\n')
if os.path.isfile(unblockingFilename+'.new'):
os.rename(unblockingFilename+'.new',unblockingFilename)
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return True
return False
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def isBlocked(baseDir: str,nickname: str,domain: str, \
blockNickname: str,blockDomain: str) -> bool:
"""Is the given nickname blocked?
"""
blockingFilename=baseDir+'/accounts/'+nickname+'@'+domain+'/blocking.txt'
blockHandle=blockNickname+'@'+blockDomain
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if os.path.isfile(blockingFilename):
if blockHandle in open(blockingFilename).read():
return True
return False
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def sendBlockViaServer(session,fromNickname: str,password: str,
fromDomain: str,fromPort: int, \
httpPrefix: str,blockedUrl: str, \
cachedWebfingers: {},personCache: {}, \
debug: bool) -> {}:
"""Creates a block via c2s
"""
if not session:
print('WARN: No session for sendBlockViaServer')
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'
blockActor=httpPrefix+'://'+fromDomainFull+'/users/'+fromNickname
newBlockJson = {
'type': 'Block',
'actor': blockActor,
'object': blockedUrl,
'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
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inboxUrl,pubKeyId,pubKey,fromPersonId,sharedInbox,capabilityAcquisition,avatarUrl,preferredName = \
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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,newBlockJson,[],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 block success')
return newBlockJson
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def sendUndoBlockViaServer(session,fromNickname: str,password: str,
fromDomain: str,fromPort: int, \
httpPrefix: str,blockedUrl: str, \
cachedWebfingers: {},personCache: {}, \
debug: bool) -> {}:
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"""Creates a block via c2s
"""
if not session:
print('WARN: No session for sendBlockViaServer')
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'
blockActor=httpPrefix+'://'+fromDomainFull+'/users/'+fromNickname
newBlockJson = {
'type': 'Undo',
'actor': blockActor,
'object': {
'type': 'Block',
'actor': blockActor,
'object': blockedUrl,
'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
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inboxUrl,pubKeyId,pubKey,fromPersonId,sharedInbox,capabilityAcquisition,avatarUrl,preferredName = \
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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,newBlockJson,[],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 block success')
return newBlockJson
def outboxBlock(baseDir: str,httpPrefix: str, \
nickname: str,domain: str,port: int, \
messageJson: {},debug: bool) -> None:
""" When a block request is received by the outbox from c2s
"""
if not messageJson.get('type'):
if debug:
print('DEBUG: block - no type')
return
if not messageJson['type']=='Block':
if debug:
print('DEBUG: not a block')
return
if not messageJson.get('object'):
if debug:
print('DEBUG: no object in block')
return
if not isinstance(messageJson['object'], str):
if debug:
print('DEBUG: block object is not string')
return
if debug:
print('DEBUG: c2s block request arrived in outbox')
messageId=messageJson['object'].replace('/activity','')
if '/statuses/' not in messageId:
if debug:
print('DEBUG: c2s block object is not a status')
return
if '/users/' not in messageId:
if debug:
print('DEBUG: c2s block 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 block post not found in inbox or outbox')
print(messageId)
return True
nicknameBlocked=getNicknameFromActor(messageJson['object'])
domainBlocked,portBlocked=getDomainFromActor(messageJson['object'])
domainBlockedFull=domainBlocked
if portBlocked:
if portBlocked!=80 and portBlocked!=443:
domainBlockedFull=domainBlocked+':'+str(portBlocked)
addBlock(baseDir,nickname,domain, \
nicknameBlocked,domainBlockedFull)
if debug:
print('DEBUG: post blocked via c2s - '+postFilename)
def outboxUndoBlock(baseDir: str,httpPrefix: str, \
nickname: str,domain: str,port: int, \
messageJson: {},debug: bool) -> None:
""" When an undo block request is received by the outbox from c2s
"""
if not messageJson.get('type'):
if debug:
print('DEBUG: undo block - no type')
return
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if not messageJson['type']=='Undo':
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if debug:
print('DEBUG: not an undo block')
return
if not messageJson.get('object'):
if debug:
print('DEBUG: no object in undo block')
return
if not isinstance(messageJson['object'], dict):
if debug:
print('DEBUG: undo block object is not string')
return
if not messageJson['object'].get('type'):
if debug:
print('DEBUG: undo block - no type')
return
if not messageJson['object']['type']=='Block':
if debug:
print('DEBUG: not an undo block')
return
if not messageJson['object'].get('object'):
if debug:
print('DEBUG: no object in undo block')
return
if not isinstance(messageJson['object']['object'], str):
if debug:
print('DEBUG: undo block object is not string')
return
if debug:
print('DEBUG: c2s undo block request arrived in outbox')
messageId=messageJson['object']['object'].replace('/activity','')
if '/statuses/' not in messageId:
if debug:
print('DEBUG: c2s undo block object is not a status')
return
if '/users/' not in messageId:
if debug:
print('DEBUG: c2s undo block 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 block post not found in inbox or outbox')
print(messageId)
return True
nicknameBlocked=getNicknameFromActor(messageJson['object']['object'])
domainBlocked,portBlocked=getDomainFromActor(messageJson['object']['object'])
domainBlockedFull=domainBlocked
if portBlocked:
if portBlocked!=80 and portBlocked!=443:
domainBlockedFull=domainBlocked+':'+str(portBlocked)
removeBlock(baseDir,nickname,domain, \
nicknameBlocked,domainBlockedFull)
if debug:
print('DEBUG: post undo blocked via c2s - '+postFilename)