Cédric Krier
27387b0960
A concurrency exception could be raised if two successful login/logout are requested simultaneously. issue5890 review32591002
85 lines
2.9 KiB
Python
85 lines
2.9 KiB
Python
# This file is part of Tryton. The COPYRIGHT file at the top level of
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# this repository contains the full copyright notices and license terms.
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from trytond.pool import Pool
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from trytond.config import config
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from trytond.transaction import Transaction
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from trytond import backend
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from trytond.exceptions import LoginException
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def _get_pool(dbname):
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database_list = Pool.database_list()
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pool = Pool(dbname)
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if dbname not in database_list:
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pool.init()
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return pool
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def login(dbname, loginname, parameters, cache=True, language=None):
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DatabaseOperationalError = backend.get('DatabaseOperationalError')
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context = {'language': language}
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for count in range(config.getint('database', 'retry'), -1, -1):
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with Transaction().start(dbname, 0, context=context) as transaction:
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pool = _get_pool(dbname)
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User = pool.get('res.user')
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try:
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user_id = User.get_login(loginname, parameters)
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except DatabaseOperationalError:
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if count:
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continue
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raise
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except LoginException:
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# Let's store any changes done
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transaction.commit()
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raise
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break
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if user_id:
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if not cache:
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return user_id
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with Transaction().start(dbname, user_id):
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Session = pool.get('ir.session')
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session, = Session.create([{}])
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return user_id, session.key
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return
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def logout(dbname, user, session):
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DatabaseOperationalError = backend.get('DatabaseOperationalError')
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for count in range(config.getint('database', 'retry'), -1, -1):
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with Transaction().start(dbname, 0):
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pool = _get_pool(dbname)
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Session = pool.get('ir.session')
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try:
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sessions = Session.search([
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('key', '=', session),
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])
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if not sessions:
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return
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session, = sessions
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name = session.create_uid.login
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Session.delete(sessions)
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except DatabaseOperationalError:
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if count:
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continue
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raise
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return name
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def check(dbname, user, session):
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DatabaseOperationalError = backend.get('DatabaseOperationalError')
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for count in range(config.getint('database', 'retry'), -1, -1):
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with Transaction().start(dbname, user) as transaction:
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pool = _get_pool(dbname)
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Session = pool.get('ir.session')
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try:
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if not Session.check(user, session):
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return
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else:
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return user
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except DatabaseOperationalError:
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if count:
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continue
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raise
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finally:
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transaction.commit()
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