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# This file is part of Tryton. The COPYRIGHT file at the top level of
# this repository contains the full copyright notices and license terms.
import logging
from trytond import backend
from trytond.config import config
from trytond.exceptions import LoginException, RateLimitException
from trytond.pool import Pool
from trytond.transaction import Transaction
logger = logging.getLogger(__name__)
def _get_pool(dbname):
database_list = Pool.database_list()
pool = Pool(dbname)
if dbname not in database_list:
pool.init()
return pool
def _get_remote_addr(context):
if context and '_request' in context:
return context['_request'].get('remote_addr')
def login(dbname, loginname, parameters, cache=True, context=None):
for count in range(config.getint('database', 'retry'), -1, -1):
with Transaction().start(dbname, 0, context=context) as transaction:
pool = _get_pool(dbname)
User = pool.get('res.user')
try:
user_id = User.get_login(loginname, parameters)
break
except backend.DatabaseOperationalError:
if count:
continue
raise
except (LoginException, RateLimitException):
# Let's store any changes done
transaction.commit()
raise
session = None
if user_id:
if not cache:
session = user_id
else:
with Transaction().start(dbname, user_id):
Session = pool.get('ir.session')
session = user_id, Session.new()
logger.info("login succeeded for '%s' from '%s' on database '%s'",
loginname, _get_remote_addr(context), dbname)
else:
logger.error("login failed for '%s' from '%s' on database '%s'",
loginname, _get_remote_addr(context), dbname)
return session
def logout(dbname, user, session, context=None):
for count in range(config.getint('database', 'retry'), -1, -1):
with Transaction().start(dbname, 0, context=context):
pool = _get_pool(dbname)
Session = pool.get('ir.session')
try:
name = Session.remove(session)
break
except backend.DatabaseOperationalError:
if count:
continue
raise
if name:
logger.info("logout for '%s' from '%s' on database '%s'",
name, _get_remote_addr(context), dbname)
else:
logger.error("logout failed for '%s' from '%s' on database '%s'",
user, _get_remote_addr(context), dbname)
def check(dbname, user, session, context=None):
for count in range(config.getint('database', 'retry'), -1, -1):
with Transaction().start(dbname, user, context=context) as transaction:
pool = _get_pool(dbname)
Session = pool.get('ir.session')
try:
find = Session.check(user, session)
break
except backend.DatabaseOperationalError:
if count:
continue
raise
finally:
transaction.commit()
if find is None:
logger.error("session failed for '%s' from '%s' on database '%s'",
user, _get_remote_addr(context), dbname)
return
elif not find:
logger.info("session expired for '%s' from '%s' on database '%s'",
user, _get_remote_addr(context), dbname)
return
else:
logger.debug("session valid for '%s' from '%s' on database '%s'",
user, _get_remote_addr(context), dbname)
return user
def check_timeout(dbname, user, session, context=None):
for count in range(config.getint('database', 'retry'), -1, -1):
with Transaction().start(dbname, user, context=context) as transaction:
pool = _get_pool(dbname)
Session = pool.get('ir.session')
try:
valid = Session.check_timeout(user, session)
break
except backend.DatabaseOperationalError:
if count:
continue
raise
finally:
transaction.commit()
if not valid:
logger.info("session timeout for '%s' from '%s' on database '%s'",
user, _get_remote_addr(context), dbname)
return valid
def reset(dbname, session, context):
try:
with Transaction().start(dbname, 0, context=context, autocommit=True):
pool = _get_pool(dbname)
Session = pool.get('ir.session')
Session.reset(session)
except backend.DatabaseOperationalError:
logger.debug('Reset session failed', exc_info=True)
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