core: fix token identifier not being set to unique

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

authentik/core/migrations/0024_alter_token_identifier.py

@@ -0,0 +1,35 @@
+# Generated by Django 3.2.3 on 2021-06-03 09:33
+
+from django.apps.registry import Apps
+from django.db import migrations, models
+from django.db.backends.base.schema import BaseDatabaseSchemaEditor
+from django.db.models import Count
+
+
+def fix_duplicates(apps: Apps, schema_editor: BaseDatabaseSchemaEditor):
+    db_alias = schema_editor.connection.alias
+    Token = apps.get_model("authentik_core", "token")
+    identifiers = (
+        Token.objects.using(db_alias)
+        .values("identifier")
+        .annotate(identifier_count=Count("identifier"))
+        .filter(identifier_count__gt=1)
+    )
+    for ident in identifiers:
+        Token.objects.using(db_alias).filter(identifier=ident["identifier"]).delete()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("authentik_core", "0023_alter_application_meta_launch_url"),
+    ]
+
+    operations = [
+        migrations.RunPython(fix_duplicates),
+        migrations.AlterField(
+            model_name="token",
+            name="identifier",
+            field=models.SlugField(max_length=255, unique=True),
+        ),
+    ]

authentik/core/models.py

@@ -404,7 +404,7 @@ class Token(ManagedModel, ExpiringModel):
     """Token used to authenticate the User for API Access or confirm another Stage like Email."""
 
     token_uuid = models.UUIDField(primary_key=True, editable=False, default=uuid4)
-    identifier = models.SlugField(max_length=255)
+    identifier = models.SlugField(max_length=255, unique=True)
     key = models.TextField(default=default_token_key)
     intent = models.TextField(
         choices=TokenIntents.choices, default=TokenIntents.INTENT_VERIFICATION

authentik/outposts/models.py

@@ -376,20 +376,25 @@ class Outpost(models.Model):
     @property
     def token(self) -> Token:
         """Get/create token for auto-generated user"""
-        token = Token.filter_not_expired(
-            user=self.user,
+        managed = f"goauthentik.io/outpost/{self.token_identifier}"
+        tokens = Token.filter_not_expired(
+            identifier=self.token_identifier,
             intent=TokenIntents.INTENT_API,
-            managed=f"goauthentik.io/outpost/{self.token_identifier}",
+            managed=managed,
         )
-        if token.exists():
-            return token.first()
+        if tokens.exists():
+            token = tokens.first()
+            if not token.managed:
+                token.managed = managed
+                token.save()
+            return token
         return Token.objects.create(
             user=self.user,
             identifier=self.token_identifier,
             intent=TokenIntents.INTENT_API,
             description=f"Autogenerated by authentik for Outpost {self.name}",
             expiring=False,
-            managed=f"goauthentik.io/outpost/{self.token_identifier}",
+            managed=managed,
         )
 
     def get_required_objects(self) -> Iterable[Union[models.Model, str]]: