fix: 解决CAS无法登陆问题

apps/settings/migrations/0009_alter_cas_username_attribute.py

@@ -0,0 +1,32 @@
+# Generated by Django 3.2.19 on 2023-06-30 10:37
+import json
+
+from django.db import migrations
+
+
+def migrate_cas_setting(apps, schema_editor):
+    setting_model = apps.get_model('settings', 'Setting')
+    obj = setting_model.objects.filter(name='CAS_RENAME_ATTRIBUTES').first()
+    if obj:
+        try:
+            value = json.loads(obj.value)
+        except Exception:
+            print("Invalid telnet regex setting, skip")
+            return
+
+        if value.pop('uid', None):
+            setting_model.objects.filter(name='CAS_USERNAME_ATTRIBUTE').update(value='"cas:user"')
+            value['cas:user'] = 'username'
+            obj.value = json.dumps(value)
+            obj.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('settings', '0008_alter_setting_options'),
+    ]
+
+    operations = [
+        migrations.RunPython(migrate_cas_setting),
+    ]