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import re
from importlib import import_module
from django.conf import settings
from django.contrib.sessions.backends.cache import (
SessionStore as DjangoSessionStore
)
from django.core.cache import cache, caches
from common.utils import get_logger
from jumpserver.utils import get_current_request
logger = get_logger(__file__)
class SessionStore(DjangoSessionStore):
ignore_urls = [
r'^/api/v1/users/profile/',
r'^/api/v1/authentication/user-session/'
]
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.ignore_pattern = re.compile('|'.join(self.ignore_urls))
def save(self, *args, **kwargs):
request = get_current_request()
if request is None or not self.ignore_pattern.match(request.path):
try:
super().save(*args, **kwargs)
except Exception as e:
logger.info(f'SessionStore save error: {e}')
class RedisUserSessionManager:
JMS_SESSION_KEY = 'jms_session_key'
def __init__(self):
self.client = cache.client.get_client()
def add_or_increment(self, session_key):
self.client.hincrby(self.JMS_SESSION_KEY, session_key, 1)
def decrement(self, session_key):
self.client.hincrby(self.JMS_SESSION_KEY, session_key, -1)
def remove(self, session_key):
try:
self.client.hdel(self.JMS_SESSION_KEY, session_key)
session_store = import_module(settings.SESSION_ENGINE).SessionStore(session_key)
session_store.delete()
except Exception:
pass
def check_active(self, session_key):
count = self.client.hget(self.JMS_SESSION_KEY, session_key)
count = 0 if count is None else int(count.decode('utf-8'))
return count > 0
def get_active_keys(self):
session_keys = []
for k, v in self.client.hgetall(self.JMS_SESSION_KEY).items():
count = int(v.decode('utf-8'))
if count <= 0:
continue
key = k.decode('utf-8')
session_keys.append(key)
return session_keys
@staticmethod
def get_keys():
session_store_cls = import_module(settings.SESSION_ENGINE).SessionStore
cache_key_prefix = session_store_cls.cache_key_prefix
keys = caches[settings.SESSION_CACHE_ALIAS].iter_keys('*')
return [k.replace(cache_key_prefix, '') for k in keys]
user_session_manager = RedisUserSessionManager()