mirror of https://gitlab.com/bashrc2/epicyon
732 lines
25 KiB
Python
732 lines
25 KiB
Python
__filename__ = "utils.py"
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__author__ = "Bob Mottram"
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__license__ = "AGPL3+"
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__version__ = "1.1.0"
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__maintainer__ = "Bob Mottram"
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__email__ = "bob@freedombone.net"
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__status__ = "Production"
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import os
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import time
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import shutil
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import datetime
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import json
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from calendar import monthrange
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def removeAvatarFromCache(baseDir: str, actorStr: str) -> None:
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"""Removes any existing avatar entries from the cache
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This avoids duplicate entries with differing extensions
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"""
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avatarFilenameExtensions = ('png', 'jpg', 'gif', 'webp')
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for extension in avatarFilenameExtensions:
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avatarFilename = \
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baseDir + '/cache/avatars/' + actorStr + '.' + extension
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if os.path.isfile(avatarFilename):
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os.remove(avatarFilename)
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def saveJson(jsonObject: {}, filename: str) -> bool:
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"""Saves json to a file
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"""
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tries = 0
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while tries < 5:
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try:
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with open(filename, 'w') as fp:
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fp.write(json.dumps(jsonObject))
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return True
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except BaseException:
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print('WARN: saveJson ' + str(tries))
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time.sleep(1)
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tries += 1
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return False
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def loadJson(filename: str, delaySec=2) -> {}:
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"""Makes a few attempts to load a json formatted file
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"""
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jsonObject = None
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tries = 0
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while tries < 5:
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try:
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with open(filename, 'r') as fp:
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data = fp.read()
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jsonObject = json.loads(data)
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break
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except BaseException:
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print('WARN: loadJson exception')
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if delaySec > 0:
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time.sleep(delaySec)
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tries += 1
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return jsonObject
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def loadJsonOnionify(filename: str, domain: str, onionDomain: str,
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delaySec=2) -> {}:
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"""Makes a few attempts to load a json formatted file
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This also converts the domain name to the onion domain
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"""
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jsonObject = None
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tries = 0
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while tries < 5:
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try:
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with open(filename, 'r') as fp:
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data = fp.read()
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if data:
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data = data.replace(domain, onionDomain)
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data = data.replace('https:', 'http:')
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print('*****data: ' + data)
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jsonObject = json.loads(data)
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break
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except BaseException:
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print('WARN: loadJson exception')
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if delaySec > 0:
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time.sleep(delaySec)
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tries += 1
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return jsonObject
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def getStatusNumber() -> (str, str):
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"""Returns the status number and published date
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"""
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currTime = datetime.datetime.utcnow()
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daysSinceEpoch = (currTime - datetime.datetime(1970, 1, 1)).days
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# status is the number of seconds since epoch
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statusNumber = \
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str(((daysSinceEpoch * 24 * 60 * 60) +
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(currTime.hour * 60 * 60) +
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(currTime.minute * 60) +
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currTime.second) * 1000 +
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int(currTime.microsecond / 1000))
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# See https://github.com/tootsuite/mastodon/blob/
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# 995f8b389a66ab76ec92d9a240de376f1fc13a38/lib/mastodon/snowflake.rb
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# use the leftover microseconds as the sequence number
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sequenceId = currTime.microsecond % 1000
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# shift by 16bits "sequence data"
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statusNumber = str((int(statusNumber) << 16) + sequenceId)
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published = currTime.strftime("%Y-%m-%dT%H:%M:%SZ")
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return statusNumber, published
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def evilIncarnate() -> []:
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return ('gab.com', 'gabfed.com', 'spinster.xyz',
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'kiwifarms.cc', 'djitter.com')
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def isEvil(domain: str) -> bool:
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if not isinstance(domain, str):
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print('WARN: Malformed domain ' + str(domain))
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return True
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# https://www.youtube.com/watch?v=5qw1hcevmdU
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evilDomains = evilIncarnate()
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for concentratedEvil in evilDomains:
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if domain.endswith(concentratedEvil):
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return True
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return False
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def createPersonDir(nickname: str, domain: str, baseDir: str,
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dirname: str) -> str:
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"""Create a directory for a person
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"""
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handle = nickname + '@' + domain
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if not os.path.isdir(baseDir + '/accounts/' + handle):
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os.mkdir(baseDir + '/accounts/' + handle)
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boxDir = baseDir + '/accounts/' + handle + '/' + dirname
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if not os.path.isdir(boxDir):
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os.mkdir(boxDir)
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return boxDir
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def createOutboxDir(nickname: str, domain: str, baseDir: str) -> str:
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"""Create an outbox for a person
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"""
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return createPersonDir(nickname, domain, baseDir, 'outbox')
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def createInboxQueueDir(nickname: str, domain: str, baseDir: str) -> str:
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"""Create an inbox queue and returns the feed filename and directory
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"""
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return createPersonDir(nickname, domain, baseDir, 'queue')
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def domainPermitted(domain: str, federationList: []):
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if len(federationList) == 0:
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return True
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if ':' in domain:
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domain = domain.split(':')[0]
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if domain in federationList:
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return True
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return False
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def urlPermitted(url: str, federationList: [], capability: str):
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if isEvil(url):
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return False
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if not federationList:
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return True
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for domain in federationList:
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if domain in url:
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return True
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return False
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def getDisplayName(baseDir: str, actor: str, personCache: {}) -> str:
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"""Returns the display name for the given actor
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"""
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if '/statuses/' in actor:
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actor = actor.split('/statuses/')[0]
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if not personCache.get(actor):
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return None
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if personCache[actor].get('actor'):
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if personCache[actor]['actor'].get('name'):
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return personCache[actor]['actor']['name']
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else:
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# Try to obtain from the cached actors
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cachedActorFilename = \
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baseDir + '/cache/actors/' + (actor.replace('/', '#')) + '.json'
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if os.path.isfile(cachedActorFilename):
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actorJson = loadJson(cachedActorFilename, 1)
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if actorJson:
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if actorJson.get('name'):
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return(actorJson['name'])
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return None
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def getNicknameFromActor(actor: str) -> str:
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"""Returns the nickname from an actor url
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"""
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if '/users/' not in actor:
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if '/profile/' in actor:
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nickStr = actor.split('/profile/')[1].replace('@', '')
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if '/' not in nickStr:
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return nickStr
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else:
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return nickStr.split('/')[0]
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if '/channel/' in actor:
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nickStr = actor.split('/channel/')[1].replace('@', '')
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if '/' not in nickStr:
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return nickStr
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else:
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return nickStr.split('/')[0]
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# https://domain/@nick
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if '/@' in actor:
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nickStr = actor.split('/@')[1]
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if '/' in nickStr:
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nickStr = nickStr.split('/')[0]
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return nickStr
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return None
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nickStr = actor.split('/users/')[1].replace('@', '')
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if '/' not in nickStr:
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return nickStr
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else:
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return nickStr.split('/')[0]
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def getDomainFromActor(actor: str) -> (str, int):
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"""Returns the domain name from an actor url
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"""
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port = None
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if '/profile/' in actor:
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domain = actor.split('/profile/')[0].replace('https://', '')
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domain = domain.replace('http://', '').replace('i2p://', '')
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domain = domain.replace('dat://', '')
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else:
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if '/channel/' in actor:
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domain = actor.split('/channel/')[0].replace('https://', '')
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domain = domain.replace('http://', '').replace('i2p://', '')
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domain = domain.replace('dat://', '')
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else:
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if '/users/' not in actor:
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domain = actor.replace('https://', '').replace('http://', '')
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domain = domain.replace('i2p://', '').replace('dat://', '')
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if '/' in actor:
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domain = domain.split('/')[0]
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else:
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domain = actor.split('/users/')[0].replace('https://', '')
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domain = domain.replace('http://', '').replace('i2p://', '')
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domain = domain.replace('dat://', '')
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if ':' in domain:
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portStr = domain.split(':')[1]
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if not portStr.isdigit():
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return None, None
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port = int(portStr)
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domain = domain.split(':')[0]
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return domain, port
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def followPerson(baseDir: str, nickname: str, domain: str,
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followNickname: str, followDomain: str,
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federationList: [], debug: bool,
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followFile='following.txt') -> bool:
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"""Adds a person to the follow list
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"""
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if not domainPermitted(followDomain.lower().replace('\n', ''),
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federationList):
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if debug:
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print('DEBUG: follow of domain ' +
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followDomain + ' not permitted')
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return False
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if debug:
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print('DEBUG: follow of domain ' + followDomain)
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if ':' in domain:
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handle = nickname + '@' + domain.split(':')[0].lower()
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else:
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handle = nickname + '@' + domain.lower()
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if not os.path.isdir(baseDir + '/accounts/' + handle):
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print('WARN: account for ' + handle + ' does not exist')
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return False
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if ':' in followDomain:
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handleToFollow = followNickname + '@' + followDomain.split(':')[0]
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else:
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handleToFollow = followNickname + '@' + followDomain
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# was this person previously unfollowed?
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unfollowedFilename = baseDir + '/accounts/' + handle + '/unfollowed.txt'
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if os.path.isfile(unfollowedFilename):
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if handleToFollow in open(unfollowedFilename).read():
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# remove them from the unfollowed file
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newLines = ''
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with open(unfollowedFilename, "r") as f:
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lines = f.readlines()
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for line in lines:
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if handleToFollow not in line:
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newLines += line
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with open(unfollowedFilename, "w") as f:
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f.write(newLines)
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if not os.path.isdir(baseDir + '/accounts'):
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os.mkdir(baseDir + '/accounts')
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handleToFollow = followNickname + '@' + followDomain
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filename = baseDir + '/accounts/' + handle + '/' + followFile
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if os.path.isfile(filename):
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if handleToFollow in open(filename).read():
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if debug:
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print('DEBUG: follow already exists')
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return True
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# prepend to follow file
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try:
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with open(filename, 'r+') as followFile:
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content = followFile.read()
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followFile.seek(0, 0)
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followFile.write(handleToFollow + '\n' + content)
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if debug:
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print('DEBUG: follow added')
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return True
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except Exception as e:
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print('WARN: Failed to write entry to follow file ' +
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filename + ' ' + str(e))
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if debug:
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print('DEBUG: creating new following file to follow ' + handleToFollow)
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with open(filename, "w") as followfile:
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followfile.write(handleToFollow + '\n')
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return True
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def locatePost(baseDir: str, nickname: str, domain: str,
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postUrl: str, replies=False) -> str:
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"""Returns the filename for the given status post url
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"""
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if not replies:
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extension = 'json'
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else:
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extension = 'replies'
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# if this post in the shared inbox?
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postUrl = postUrl.replace('/', '#').replace('/activity', '').strip()
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boxName = 'inbox'
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postFilename = baseDir + '/accounts/' + nickname + '@' + domain + \
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'/' + boxName + '/' + postUrl + '.' + extension
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if os.path.isfile(postFilename):
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return postFilename
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boxName = 'outbox'
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postFilename = baseDir + '/accounts/' + nickname + '@' + domain + \
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'/' + boxName + '/' + postUrl + '.' + extension
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if os.path.isfile(postFilename):
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return postFilename
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boxName = 'tlblogs'
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postFilename = baseDir + '/accounts/' + nickname + '@' + domain + \
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'/' + boxName + '/' + postUrl + '.'+extension
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if os.path.isfile(postFilename):
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return postFilename
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postFilename = baseDir + '/cache/announce/' + \
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nickname + '/' + postUrl + '.' + extension
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if os.path.isfile(postFilename):
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return postFilename
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print('WARN: unable to locate ' + nickname + ' ' +
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postUrl + '.' + extension)
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return None
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def removeAttachment(baseDir: str, httpPrefix: str, domain: str, postJson: {}):
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if not postJson.get('attachment'):
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return
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if not postJson['attachment'][0].get('url'):
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return
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# if port:
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# if port != 80 and port != 443:
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# if ':' not in domain:
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# domain = domain + ':' + str(port)
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attachmentUrl = postJson['attachment'][0]['url']
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if not attachmentUrl:
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return
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mediaFilename = baseDir + '/' + \
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attachmentUrl.replace(httpPrefix + '://' + domain + '/', '')
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if os.path.isfile(mediaFilename):
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os.remove(mediaFilename)
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etagFilename = mediaFilename + '.etag'
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if os.path.isfile(etagFilename):
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os.remove(etagFilename)
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postJson['attachment'] = []
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def removeModerationPostFromIndex(baseDir: str, postUrl: str,
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debug: bool) -> None:
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"""Removes a url from the moderation index
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"""
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moderationIndexFile = baseDir + '/accounts/moderation.txt'
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if not os.path.isfile(moderationIndexFile):
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return
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postId = postUrl.replace('/activity', '')
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if postId in open(moderationIndexFile).read():
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with open(moderationIndexFile, "r") as f:
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lines = f.readlines()
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with open(moderationIndexFile, "w+") as f:
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for line in lines:
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if line.strip("\n") != postId:
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f.write(line)
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else:
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if debug:
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print('DEBUG: removed ' + postId +
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' from moderation index')
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def deletePost(baseDir: str, httpPrefix: str,
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nickname: str, domain: str, postFilename: str,
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debug: bool) -> None:
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"""Recursively deletes a post and its replies and attachments
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"""
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postJsonObject = loadJson(postFilename, 1)
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if postJsonObject:
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# don't allow deletion of bookmarked posts
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bookmarksIndexFilename = \
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baseDir + '/accounts/' + nickname + '@' + domain + \
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'/bookmarks.index'
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if os.path.isfile(bookmarksIndexFilename):
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bookmarkIndex = postFilename.split('/')[-1] + '\n'
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if bookmarkIndex in open(bookmarksIndexFilename).read():
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return
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# remove any attachment
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removeAttachment(baseDir, httpPrefix, domain, postJsonObject)
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# remove any mute file
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muteFilename = postFilename + '.muted'
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if os.path.isfile(muteFilename):
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os.remove(muteFilename)
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# remove cached html version of the post
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cachedPostFilename = \
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getCachedPostFilename(baseDir, nickname, domain, postJsonObject)
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if cachedPostFilename:
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if os.path.isfile(cachedPostFilename):
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os.remove(cachedPostFilename)
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# removePostFromCache(postJsonObject,recentPostsCache)
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hasObject = False
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if postJsonObject.get('object'):
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hasObject = True
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# remove from moderation index file
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if hasObject:
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if isinstance(postJsonObject['object'], dict):
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if postJsonObject['object'].get('moderationStatus'):
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if postJsonObject.get('id'):
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postId = postJsonObject['id'].replace('/activity', '')
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removeModerationPostFromIndex(baseDir, postId, debug)
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# remove any hashtags index entries
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removeHashtagIndex = False
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if hasObject:
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if hasObject and isinstance(postJsonObject['object'], dict):
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if postJsonObject['object'].get('content'):
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if '#' in postJsonObject['object']['content']:
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removeHashtagIndex = True
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if removeHashtagIndex:
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if postJsonObject['object'].get('id') and \
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postJsonObject['object'].get('tag'):
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# get the id of the post
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postId = \
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postJsonObject['object']['id'].replace('/activity', '')
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for tag in postJsonObject['object']['tag']:
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if tag['type'] != 'Hashtag':
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continue
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if not tag.get('name'):
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continue
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# find the index file for this tag
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tagIndexFilename = \
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baseDir + '/tags/' + tag['name'][1:] + '.txt'
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if not os.path.isfile(tagIndexFilename):
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continue
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# remove postId from the tag index file
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lines = None
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with open(tagIndexFilename, "r") as f:
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lines = f.readlines()
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if lines:
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newlines = ''
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for l in lines:
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if postId in l:
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continue
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newlines += l
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if not newlines.strip():
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# if there are no lines then remove the
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# hashtag file
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os.remove(tagIndexFilename)
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else:
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with open(tagIndexFilename, "w+") as f:
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f.write(newlines)
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# remove any replies
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repliesFilename = postFilename.replace('.json', '.replies')
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if os.path.isfile(repliesFilename):
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if debug:
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print('DEBUG: removing replies to ' + postFilename)
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with open(repliesFilename, 'r') as f:
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for replyId in f:
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replyFile = locatePost(baseDir, nickname, domain, replyId)
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if replyFile:
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if os.path.isfile(replyFile):
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deletePost(baseDir, httpPrefix,
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nickname, domain, replyFile, debug)
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# remove the replies file
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os.remove(repliesFilename)
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# finally, remove the post itself
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os.remove(postFilename)
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def validNickname(domain: str, nickname: str) -> bool:
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forbiddenChars = ('.', ' ', '/', '?', ':', ';', '@')
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for c in forbiddenChars:
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if c in nickname:
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return False
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if nickname == domain:
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return False
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reservedNames = ('inbox', 'dm', 'outbox', 'following',
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'public', 'followers', 'profile',
|
|
'channel', 'capabilities', 'calendar',
|
|
'tlreplies', 'tlmedia', 'tlblogs',
|
|
'moderation', 'activity', 'undo',
|
|
'reply', 'replies', 'question', 'like',
|
|
'likes', 'users', 'statuses',
|
|
'updates', 'repeat', 'announce',
|
|
'shares')
|
|
if nickname in reservedNames:
|
|
return False
|
|
return True
|
|
|
|
|
|
def noOfAccounts(baseDir: str) -> bool:
|
|
"""Returns the number of accounts on the system
|
|
"""
|
|
accountCtr = 0
|
|
for subdir, dirs, files in os.walk(baseDir + '/accounts'):
|
|
for account in dirs:
|
|
if '@' in account:
|
|
if not account.startswith('inbox@'):
|
|
accountCtr += 1
|
|
return accountCtr
|
|
|
|
|
|
def noOfActiveAccountsMonthly(baseDir: str, months: int) -> bool:
|
|
"""Returns the number of accounts on the system this month
|
|
"""
|
|
accountCtr = 0
|
|
currTime = int(time.time())
|
|
monthSeconds = int(60*60*24*30*months)
|
|
for subdir, dirs, files in os.walk(baseDir + '/accounts'):
|
|
for account in dirs:
|
|
if '@' in account:
|
|
if not account.startswith('inbox@'):
|
|
lastUsedFilename = \
|
|
baseDir + '/accounts/' + account + '/.lastUsed'
|
|
if os.path.isfile(lastUsedFilename):
|
|
with open(lastUsedFilename, 'r') as lastUsedFile:
|
|
lastUsed = lastUsedFile.read()
|
|
if lastUsed.isdigit():
|
|
timeDiff = (currTime - int(lastUsed))
|
|
if timeDiff < monthSeconds:
|
|
accountCtr += 1
|
|
return accountCtr
|
|
|
|
|
|
def isPublicPostFromUrl(baseDir: str, nickname: str, domain: str,
|
|
postUrl: str) -> bool:
|
|
"""Returns whether the given url is a public post
|
|
"""
|
|
postFilename = locatePost(baseDir, nickname, domain, postUrl)
|
|
if not postFilename:
|
|
return False
|
|
postJsonObject = loadJson(postFilename, 1)
|
|
if not postJsonObject:
|
|
return False
|
|
return isPublicPost(postJsonObject)
|
|
|
|
|
|
def isPublicPost(postJsonObject: {}) -> bool:
|
|
"""Returns true if the given post is public
|
|
"""
|
|
if not postJsonObject.get('type'):
|
|
return False
|
|
if postJsonObject['type'] != 'Create':
|
|
return False
|
|
if not postJsonObject.get('object'):
|
|
return False
|
|
if not isinstance(postJsonObject['object'], dict):
|
|
return False
|
|
if not postJsonObject['object'].get('to'):
|
|
return False
|
|
for recipient in postJsonObject['object']['to']:
|
|
if recipient.endswith('#Public'):
|
|
return True
|
|
return False
|
|
|
|
|
|
def copytree(src: str, dst: str, symlinks=False, ignore=None):
|
|
"""Copy a directory
|
|
"""
|
|
for item in os.listdir(src):
|
|
s = os.path.join(src, item)
|
|
d = os.path.join(dst, item)
|
|
if os.path.isdir(s):
|
|
shutil.copytree(s, d, symlinks, ignore)
|
|
else:
|
|
shutil.copy2(s, d)
|
|
|
|
|
|
def getCachedPostDirectory(baseDir: str, nickname: str, domain: str) -> str:
|
|
"""Returns the directory where the html post cache exists
|
|
"""
|
|
htmlPostCacheDir = baseDir + '/accounts/' + \
|
|
nickname + '@' + domain + '/postcache'
|
|
return htmlPostCacheDir
|
|
|
|
|
|
def getCachedPostFilename(baseDir: str, nickname: str, domain: str,
|
|
postJsonObject: {}) -> str:
|
|
"""Returns the html cache filename for the given post
|
|
"""
|
|
cachedPostDir = getCachedPostDirectory(baseDir, nickname, domain)
|
|
if not os.path.isdir(cachedPostDir):
|
|
# print('ERROR: invalid html cache directory '+cachedPostDir)
|
|
return None
|
|
if '@' not in cachedPostDir:
|
|
# print('ERROR: invalid html cache directory '+cachedPostDir)
|
|
return None
|
|
cachedPostFilename = \
|
|
cachedPostDir + \
|
|
'/' + postJsonObject['id'].replace('/activity', '').replace('/', '#')
|
|
cachedPostFilename = cachedPostFilename + '.html'
|
|
return cachedPostFilename
|
|
|
|
|
|
def removePostFromCache(postJsonObject: {}, recentPostsCache: {}):
|
|
""" if the post exists in the recent posts cache then remove it
|
|
"""
|
|
if not postJsonObject.get('id'):
|
|
return
|
|
|
|
if not recentPostsCache.get('index'):
|
|
return
|
|
|
|
postId = postJsonObject['id']
|
|
if '#' in postId:
|
|
postId = postId.split('#', 1)[0]
|
|
postId = postId.replace('/activity', '').replace('/', '#')
|
|
if postId not in recentPostsCache['index']:
|
|
return
|
|
|
|
if recentPostsCache['json'].get(postId):
|
|
del recentPostsCache['json'][postId]
|
|
if recentPostsCache['html'].get(postId):
|
|
del recentPostsCache['html'][postId]
|
|
recentPostsCache['index'].remove(postId)
|
|
|
|
|
|
def updateRecentPostsCache(recentPostsCache: {}, maxRecentPosts: int,
|
|
postJsonObject: {}, htmlStr: str) -> None:
|
|
"""Store recent posts in memory so that they can be quickly recalled
|
|
"""
|
|
if not postJsonObject.get('id'):
|
|
return
|
|
postId = postJsonObject['id']
|
|
if '#' in postId:
|
|
postId = postId.split('#', 1)[0]
|
|
postId = postId.replace('/activity', '').replace('/', '#')
|
|
if recentPostsCache.get('index'):
|
|
if postId in recentPostsCache['index']:
|
|
return
|
|
recentPostsCache['index'].append(postId)
|
|
postJsonObject['muted'] = False
|
|
recentPostsCache['json'][postId] = json.dumps(postJsonObject)
|
|
recentPostsCache['html'][postId] = htmlStr
|
|
|
|
while len(recentPostsCache['html'].items()) > maxRecentPosts:
|
|
recentPostsCache['index'].pop(0)
|
|
del recentPostsCache['json'][postId]
|
|
del recentPostsCache['html'][postId]
|
|
else:
|
|
recentPostsCache['index'] = [postId]
|
|
recentPostsCache['json'] = {}
|
|
recentPostsCache['html'] = {}
|
|
recentPostsCache['json'][postId] = json.dumps(postJsonObject)
|
|
recentPostsCache['html'][postId] = htmlStr
|
|
|
|
|
|
def fileLastModified(filename: str) -> str:
|
|
"""Returns the date when a file was last modified
|
|
"""
|
|
t = os.path.getmtime(filename)
|
|
modifiedTime = datetime.datetime.fromtimestamp(t)
|
|
return modifiedTime.strftime("%Y-%m-%dT%H:%M:%SZ")
|
|
|
|
|
|
def daysInMonth(year: int, monthNumber: int) -> int:
|
|
"""Returns the number of days in the month
|
|
"""
|
|
if monthNumber < 1 or monthNumber > 12:
|
|
return None
|
|
daysRange = monthrange(year, monthNumber)
|
|
return daysRange[1]
|
|
|
|
|
|
def mergeDicts(dict1: {}, dict2: {}) -> {}:
|
|
"""Merges two dictionaries
|
|
"""
|
|
res = {**dict1, **dict2}
|
|
return res
|
|
|
|
|
|
def isBlogPost(postJsonObject: {}) -> bool:
|
|
"""Is the given post a blog post?
|
|
"""
|
|
if postJsonObject['type'] != 'Create':
|
|
return False
|
|
if not postJsonObject.get('object'):
|
|
return False
|
|
if not isinstance(postJsonObject['object'], dict):
|
|
return False
|
|
if not postJsonObject['object'].get('type'):
|
|
return False
|
|
if not postJsonObject['object'].get('content'):
|
|
return False
|
|
if postJsonObject['object']['type'] != 'Article':
|
|
return False
|
|
return True
|