feat: 用户在线session控制

apps/users/models/__init__.py

@@ -4,5 +4,6 @@
 
 from .group import *
 from .preference import *
+from .session import *
 from .user import *
 from .utils import *

apps/users/models/session.py

@@ -0,0 +1,40 @@
+import uuid
+
+from django.db import models
+from django.utils import timezone
+from django.utils.translation import gettext, gettext_lazy as _
+
+from audits.const import LoginTypeChoices
+
+
+class UserSession(models.Model):
+    id = models.UUIDField(default=uuid.uuid4, primary_key=True)
+    ip = models.GenericIPAddressField(verbose_name=_("Login IP"))
+    key = models.CharField(max_length=128, verbose_name=_("Session key"))
+    city = models.CharField(max_length=254, blank=True, null=True, verbose_name=_("Login city"))
+    user_agent = models.CharField(max_length=254, blank=True, null=True, verbose_name=_("User agent"))
+    type = models.CharField(choices=LoginTypeChoices.choices, max_length=2, verbose_name=_("Login type"))
+    backend = models.CharField(max_length=32, default="", verbose_name=_("Authentication backend"))
+    date_created = models.DateTimeField(null=True, blank=True, verbose_name=_('Date created'))
+    date_expired = models.DateTimeField(null=True, blank=True, verbose_name=_("Date expired"), db_index=True)
+    user = models.ForeignKey(
+        'users.User', verbose_name=_('User'), related_name='sessions', on_delete=models.CASCADE
+    )
+
+    def __str__(self):
+        return '%s(%s)' % (self.user, self.ip)
+
+    @property
+    def backend_display(self):
+        return gettext(self.backend)
+
+    @classmethod
+    def clear_expired_sessions(cls):
+        cls.objects.filter(date_expired__lt=timezone.now()).delete()
+
+    class Meta:
+        ordering = ['-date_created']
+        verbose_name = _('User session')
+        permissions = [
+            ('offline_usersession', _('Offline ussr session')),
+        ]