hydrus/hydrus/core/HydrusSessions.py

222 lines
7.8 KiB
Python

import collections
import hashlib
import threading
from hydrus.core import HydrusExceptions
from hydrus.core import HydrusData
from hydrus.core import HydrusGlobals as HG
from hydrus.core import HydrusTime
HYDRUS_SESSION_LIFETIME = 30 * 86400
class HydrusSessionManagerServer( object ):
def __init__( self ):
self._lock = threading.Lock()
self.RefreshAllAccounts()
HG.controller.sub( self, 'RefreshAccounts', 'update_session_accounts' )
HG.controller.sub( self, 'RefreshAllAccounts', 'update_all_session_accounts' )
def _GetAccountFromAccountKey( self, service_key, account_key ):
account_keys_to_accounts = self._service_keys_to_account_keys_to_accounts[ service_key ]
if account_key not in account_keys_to_accounts:
if HG.server_busy.locked():
raise HydrusExceptions.ServerBusyException( 'Sorry, server is busy and cannot fetch account data right now!' )
account = HG.controller.Read( 'account', service_key, account_key )
account_keys_to_accounts[ account_key ] = account
account = account_keys_to_accounts[ account_key ]
return account
def _GetAccountKeyFromAccessKey( self, service_key, access_key ):
hashed_access_key = hashlib.sha256( access_key ).digest()
if hashed_access_key not in self._service_keys_to_hashed_access_keys_to_account_keys[ service_key ]:
if HG.server_busy.locked():
raise HydrusExceptions.ServerBusyException( 'Sorry, server is busy and cannot fetch account id data right now!' )
account_key = HG.controller.Read( 'account_key_from_access_key', service_key, access_key )
self._service_keys_to_hashed_access_keys_to_account_keys[ service_key ][ hashed_access_key ] = account_key
account_key = self._service_keys_to_hashed_access_keys_to_account_keys[ service_key ][ hashed_access_key ]
return account_key
def AddSession( self, service_key, access_key ):
with self._lock:
account_key = self._GetAccountKeyFromAccessKey( service_key, access_key )
account = self._GetAccountFromAccountKey( service_key, account_key )
session_key = HydrusData.GenerateKey()
now = HydrusTime.GetNow()
expires = now + HYDRUS_SESSION_LIFETIME
HG.controller.Write( 'session', session_key, service_key, account_key, expires )
self._service_keys_to_session_keys_to_sessions[ service_key ][ session_key ] = ( account_key, expires )
return ( session_key, expires )
def GetAccount( self, service_key, session_key ):
with self._lock:
session_keys_to_sessions = self._service_keys_to_session_keys_to_sessions[ service_key ]
if session_key in session_keys_to_sessions:
( account_key, expires ) = session_keys_to_sessions[ session_key ]
if HydrusTime.TimeHasPassed( expires ):
del session_keys_to_sessions[ session_key ]
else:
account = self._service_keys_to_account_keys_to_accounts[ service_key ][ account_key ]
return account
raise HydrusExceptions.SessionException( 'Did not find that session! Try again!' )
def GetAccountFromAccessKey( self, service_key, access_key ):
with self._lock:
account_key = self._GetAccountKeyFromAccessKey( service_key, access_key )
account = self._GetAccountFromAccountKey( service_key, account_key )
return account
def GetDirtyAccounts( self ):
with self._lock:
service_keys_to_dirty_accounts = {}
for ( service_key, account_keys_to_accounts ) in self._service_keys_to_account_keys_to_accounts.items():
dirty_accounts = [ account_key for account_key in account_keys_to_accounts.values() if account_key.IsDirty() ]
if len( dirty_accounts ) > 0:
service_keys_to_dirty_accounts[ service_key ] = dirty_accounts
return service_keys_to_dirty_accounts
def RefreshAccounts( self, service_key, account_keys = None ):
with self._lock:
account_keys_to_accounts = self._service_keys_to_account_keys_to_accounts[ service_key ]
if account_keys is None:
account_keys = list( account_keys_to_accounts.keys() )
for account_key in account_keys:
account = HG.controller.Read( 'account', service_key, account_key )
account_keys_to_accounts[ account_key ] = account
def RefreshAllAccounts( self, service_key = None ):
with self._lock:
if service_key is None:
self._service_keys_to_session_keys_to_sessions = collections.defaultdict( dict )
self._service_keys_to_account_keys_to_accounts = collections.defaultdict( dict )
self._service_keys_to_hashed_access_keys_to_account_keys = collections.defaultdict( dict )
existing_sessions = HG.controller.Read( 'sessions' )
else:
del self._service_keys_to_session_keys_to_sessions[ service_key ]
del self._service_keys_to_account_keys_to_accounts[ service_key ]
del self._service_keys_to_hashed_access_keys_to_account_keys[ service_key ]
existing_sessions = HG.controller.Read( 'sessions', service_key )
for ( session_key, service_key, account, hashed_access_key, expires ) in existing_sessions:
account_key = account.GetAccountKey()
self._service_keys_to_session_keys_to_sessions[ service_key ][ session_key ] = ( account_key, expires )
if account_key not in self._service_keys_to_account_keys_to_accounts:
self._service_keys_to_account_keys_to_accounts[ service_key ][ account_key ] = account
if hashed_access_key not in self._service_keys_to_hashed_access_keys_to_account_keys:
self._service_keys_to_hashed_access_keys_to_account_keys[ service_key ][ hashed_access_key ] = account_key
def UpdateAccounts( self, service_key, accounts ):
with self._lock:
account_keys_to_accounts = self._service_keys_to_account_keys_to_accounts[ service_key ]
for account in accounts:
account_keys_to_accounts[ account.GetAccountKey() ] = account