From 1a1005f80dc86b5289ff985e098f41804adb28a4 Mon Sep 17 00:00:00 2001
From: Jens Langhammer <jens.langhammer@beryju.org>
Date: Sun, 3 Mar 2019 20:13:54 +0100
Subject: [PATCH] remove audit's LoginAttempt

---
 passbook/audit/models.py  | 40 ---------------------------------------
 passbook/audit/signals.py | 10 ++--------
 2 files changed, 2 insertions(+), 48 deletions(-)

diff --git a/passbook/audit/models.py b/passbook/audit/models.py
index f43cd5564..29338ee7a 100644
--- a/passbook/audit/models.py
+++ b/passbook/audit/models.py
@@ -75,43 +75,3 @@ class AuditEntry(UUIDModel):
 
         verbose_name = _('Audit Entry')
         verbose_name_plural = _('Audit Entries')
-
-
-class LoginAttempt(CreatedUpdatedModel):
-    """Track failed login-attempts"""
-
-    target_uid = models.CharField(max_length=254)
-    request_ip = models.GenericIPAddressField()
-    attempts = models.IntegerField(default=1)
-
-    @staticmethod
-    def attempt(target_uid, request):
-        """Helper function to create attempt or count up existing one"""
-        if not target_uid:
-            return
-        client_ip, _ = get_client_ip(request)
-        # Since we can only use 254 chars for target_uid, truncate target_uid.
-        target_uid = target_uid[:254]
-        time_threshold = timezone.now() - timedelta(minutes=10)
-        existing_attempts = LoginAttempt.objects.filter(
-            target_uid=target_uid,
-            request_ip=client_ip,
-            last_updated__gt=time_threshold).order_by('created')
-        if existing_attempts.exists():
-            attempt = existing_attempts.first()
-            attempt.attempts += 1
-            attempt.save()
-            LOGGER.debug("Increased attempts on %s", attempt)
-        else:
-            attempt = LoginAttempt.objects.create(
-                target_uid=target_uid,
-                request_ip=client_ip)
-            LOGGER.debug("Created new attempt %s", attempt)
-
-    def __str__(self):
-        return "LoginAttempt to %s from %s (x%d)" % (self.target_uid,
-                                                     self.request_ip, self.attempts)
-
-    class Meta:
-
-        unique_together = (('target_uid', 'request_ip', 'created'),)
diff --git a/passbook/audit/signals.py b/passbook/audit/signals.py
index d26374326..a59fb35bd 100644
--- a/passbook/audit/signals.py
+++ b/passbook/audit/signals.py
@@ -1,9 +1,8 @@
 """passbook audit signal listener"""
-from django.contrib.auth.signals import (user_logged_in, user_logged_out,
-                                         user_login_failed)
+from django.contrib.auth.signals import user_logged_in, user_logged_out
 from django.dispatch import receiver
 
-from passbook.audit.models import AuditEntry, LoginAttempt
+from passbook.audit.models import AuditEntry
 from passbook.core.signals import (invitation_created, invitation_used,
                                    user_signed_up)
 
@@ -34,8 +33,3 @@ def on_invitation_used(sender, request, invitation, **kwargs):
     """Log Invitation usage"""
     AuditEntry.create(AuditEntry.ACTION_INVITE_USED, request,
                       invitation_uuid=invitation.uuid.hex)
-
-@receiver(user_login_failed)
-def on_user_login_failed(sender, request, credentials, **kwargs):
-    """Log failed login attempt"""
-    LoginAttempt.attempt(target_uid=credentials.get('username'), request=request)