Fix psycopg2 bug

Internal Server Error: /admin/login/
Traceback (most recent call last):
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/core/handlers/exception.py", line 34, in inner
    response = get_response(request)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/core/handlers/base.py", line 115, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/core/handlers/base.py", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/views/decorators/cache.py", line 44, in _wrapped_view_func
    response = view_func(request, *args, **kwargs)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/contrib/admin/sites.py", line 399, in login
    return LoginView.as_view(**defaults)(request)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/views/generic/base.py", line 71, in view
    return self.dispatch(request, *args, **kwargs)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/utils/decorators.py", line 45, in _wrapper
    return bound_method(*args, **kwargs)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/views/decorators/debug.py", line 76, in sensitive_post_parameters_wrapper
    return view(request, *args, **kwargs)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/utils/decorators.py", line 45, in _wrapper
    return bound_method(*args, **kwargs)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/utils/decorators.py", line 142, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/utils/decorators.py", line 45, in _wrapper
    return bound_method(*args, **kwargs)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/views/decorators/cache.py", line 44, in _wrapped_view_func
    response = view_func(request, *args, **kwargs)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/contrib/auth/views.py", line 61, in dispatch
    return super().dispatch(request, *args, **kwargs)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/views/generic/base.py", line 97, in dispatch
    return handler(request, *args, **kwargs)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/views/generic/edit.py", line 141, in post
    if form.is_valid():
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/forms/forms.py", line 185, in is_valid
    return self.is_bound and not self.errors
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/forms/forms.py", line 180, in errors
    self.full_clean()
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/forms/forms.py", line 382, in full_clean
    self._clean_form()
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/forms/forms.py", line 409, in _clean_form
    cleaned_data = self.clean()
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/contrib/auth/forms.py", line 205, in clean
    self.user_cache = authenticate(self.request, username=username, password=password)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/contrib/auth/__init__.py", line 73, in authenticate
    user = backend.authenticate(request, **credentials)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/contrib/auth/backends.py", line 20, in authenticate
    user = UserModel._default_manager.get_by_natural_key(username)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/contrib/auth/base_user.py", line 44, in get_by_natural_key
    return self.get(**{self.model.USERNAME_FIELD: username})
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/db/models/manager.py", line 82, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/db/models/query.py", line 402, in get
    num = len(clone)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/db/models/query.py", line 256, in __len__
    self._fetch_all()
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/db/models/query.py", line 1242, in _fetch_all
    self._result_cache = list(self._iterable_class(self))
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/db/models/query.py", line 55, in __iter__
    results = compiler.execute_sql(chunked_fetch=self.chunked_fetch, chunk_size=self.chunk_size)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/db/models/sql/compiler.py", line 1175, in execute_sql
    return list(result)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/db/models/sql/compiler.py", line 1554, in cursor_iter
    for rows in iter((lambda: cursor.fetchmany(itersize)), sentinel):
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/db/models/sql/compiler.py", line 1554, in <lambda>
    for rows in iter((lambda: cursor.fetchmany(itersize)), sentinel):
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/db/utils.py", line 96, in inner
    return func(*args, **kwargs)
  File "/home/app/pyvenv/lib/python3.9/site-packages/django/db/backends/postgresql/utils.py", line 6, in utc_tzinfo_factory
    raise AssertionError("database connection isn't set to UTC")

See: https://stackoverflow.com/a/68025007

.env.sample

@@ -1,3 +1,4 @@
 SECRET_KEY=ldskjflkdsnejnjsdnf
 DEBUG=False
-ENABLE_DEBUG_LOG=True
+ENABLE_DEBUG_LOG=True
+ALLOWED_HOSTS=localhost,.ungleich.ch

otpauth/models.py

@@ -4,6 +4,7 @@ from rest_framework import exceptions
 from rest_framework import authentication
 import json
 import logging
+import pyotp
 
 logger = logging.getLogger(__name__)
 
@@ -21,7 +22,13 @@ class OTPSeed(AbstractUser):
         """
         inject username to ensure it stays unique / is setup at all
         """
-        self.username = "{}@{}".format(self.name, self.realm)
+        if not self.is_superuser:
+            self.username = "{}@{}".format(self.name, self.realm)
+        else:
+            self.name = self.username
+            self.realm = "ungleich-admin"
+            self.seed = pyotp.random_base32()
+
         super().save(*args, **kwargs)
 
     def __str__(self):

requirements.txt

@@ -1,10 +1,10 @@
 pyotp>=2.2.6
-django>=2.1.2
+django==2.2.16
 djangorestframework
 python-decouple>=3.1
 
 # DB
-psycopg2-binary
+psycopg2>=2.8,<2.9
 
 # Recommended
 markdown

ungleichotpserver/settings.py

@@ -132,9 +132,7 @@ DEBUG_DATABASES = {
 }
 
 DEBUG = config('DEBUG', False, cast=bool)
-ALLOWED_HOSTS = [
+ALLOWED_HOSTS = config('ALLOWED_HOSTS', default='localhost', cast=Csv())
-    ".ungleich.ch"
-]
 
 DATABASES = {
     'default': {