I'm encountering an error that can be "resolved" by simply adding to INSTALLED_APPS (without migrate):
'django.contrib.auth',
'django.contrib.contenttypes',
Based on the debug output, it seems this error is occurring because Django Rest Framework is trying to authenticate the request, which requires the Auth app, which requires Permissions and ContentTypes, all of which have been removed. The APIView uses only query_params from request, nothing else. It accepts the global DRF settings as shown:
REST_FRAMEWORK = {
'DEFAULT_AUTHENTICATION_CLASSES': (),
'DEFAULT_PERMISSION_CLASSES': (),
'DEFAULT_RENDERER_CLASSES': ('common.rest.JSONRenderer',),
'DEFAULT_CONTENT_NEGOTIATION_CLASS': 'common.rest.IgnoreNegotiation',
}
Debug output:
RuntimeError at /mac/pins/
Model class django.contrib.contenttypes.models.ContentType doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.
Request Method: GET
Request URL: http://django/mac/pins/
Django Version: 1.10.5
Python Executable: /home/admin/env/bin/python3.6
Python Version: 3.6.0
Python Path: ['/home/admin/src', '/home/admin/env/bin', '/home/admin/env/lib/python36.zip', '/home/admin/env/lib/python3.6', '/home/admin/env/lib/python3.6/lib-dynload', '/usr/local/lib/python3.6', '/home/admin/env/lib/python3.6/site-packages']
Server time: Fri, 24 Feb 2017 00:54:33 +0000
Installed Applications:
['myapp']
Installed Middleware:
()
Traceback:
File "/home/admin/env/lib/python3.6/site-packages/django/core/handlers/exception.py" in inner
39. response = get_response(request)
File "/home/admin/env/lib/python3.6/site-packages/django/core/handlers/base.py" in _legacy_get_response
249. response = self._get_response(request)
File "/home/admin/env/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
187. response = self.process_exception_by_middleware(e, request)
File "/home/admin/env/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
185. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/admin/env/lib/python3.6/site-packages/django/views/decorators/csrf.py" in wrapped_view
58. return view_func(*args, **kwargs)
File "/home/admin/env/lib/python3.6/site-packages/django/views/generic/base.py" in view
68. return self.dispatch(request, *args, **kwargs)
File "/home/admin/env/lib/python3.6/site-packages/rest_framework/views.py" in dispatch
483. response = self.handle_exception(exc)
File "/home/admin/env/lib/python3.6/site-packages/rest_framework/views.py" in handle_exception
443. self.raise_uncaught_exception(exc)
File "/home/admin/env/lib/python3.6/site-packages/rest_framework/views.py" in dispatch
471. self.initial(request, *args, **kwargs)
File "/home/admin/env/lib/python3.6/site-packages/rest_framework/views.py" in initial
393. self.perform_authentication(request)
File "/home/admin/env/lib/python3.6/site-packages/rest_framework/views.py" in perform_authentication
319. request.user
File "/home/admin/env/lib/python3.6/site-packages/rest_framework/request.py" in __getattribute__
379. return super(Request, self).__getattribute__(attr)
File "/home/admin/env/lib/python3.6/site-packages/rest_framework/request.py" in user
196. self._authenticate()
File "/home/admin/env/lib/python3.6/site-packages/rest_framework/request.py" in _authenticate
352. self._not_authenticated()
File "/home/admin/env/lib/python3.6/site-packages/rest_framework/request.py" in _not_authenticated
363. if api_settings.UNAUTHENTICATED_USER:
File "/home/admin/env/lib/python3.6/site-packages/rest_framework/settings.py" in __getattr__
220. val = perform_import(val, attr)
File "/home/admin/env/lib/python3.6/site-packages/rest_framework/settings.py" in perform_import
163. return import_from_string(val, setting_name)
File "/home/admin/env/lib/python3.6/site-packages/rest_framework/settings.py" in import_from_string
177. module = import_module(module_path)
File "/home/admin/env/lib/python3.6/importlib/__init__.py" in import_module
126. return _bootstrap._gcd_import(name[level:], package, level)
File "/home/admin/env/lib/python3.6/site-packages/django/contrib/auth/models.py" in <module>
6. from django.contrib.contenttypes.models import ContentType
File "/home/admin/env/lib/python3.6/site-packages/django/contrib/contenttypes/models.py" in <module>
138. class ContentType(models.Model):
File "/home/admin/env/lib/python3.6/site-packages/django/db/models/base.py" in __new__
113. "INSTALLED_APPS." % (module, name)
Exception Type: RuntimeError at /mac/pins/
Exception Value: Model class django.contrib.contenttypes.models.ContentType doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.
Why is it trying to authenticate the request? How can I stop it?
It's not trying to authenticate the request. You don't have any authenticators so it skipped over an empty tuple and went to:
352. self._not_authenticated()
However the unauthenticated user object in rest framework defaults to this:
# Authentication
'UNAUTHENTICATED_USER': 'django.contrib.auth.models.AnonymousUser',
So maybe you'll need to provide your own unauthenticated user model, if you don't want to pull in django.contrib.auth.
Related
What I am trying to achieve is to customize the oscarapi to expose the partner api to be public api instead of just for admin
I have followed the docs on how to customize the api and also did as suggested by Jamie Marshall in
Extending django-oscarapi API ROOT to custom API class
So far I am able to overwrite the root.py file but failing to get oscar see the new urls.py file.
My work so far is as follows
I created a api_customization/views/partner.py file
I created a api_customization/views/root.py file
I tried to extend the urls.py file by creating a api_customization/urls.py file
However, I'm getting the following error
Traceback (most recent call last):
File "/usr/local/lib/python3.7/site-packages/django/core/handlers/exception.py", line 47, in inner response = get_response(request)
File "/usr/local/lib/python3.7/site-packages/django/core/handlers/base.py", line 181, in _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/usr/local/lib/python3.7/contextlib.py", line 74, in inner return func(*args, **kwds)
File "/usr/local/lib/python3.7/site-packages/django/views/decorators/csrf.py", line 54, in wrapped_view return view_func(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/django/views/generic/base.py", line 70, in view return self.dispatch(request, *args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/rest_framework/views.py", line 509, in dispatch response = self.handle_exception(exc)
File "/usr/local/lib/python3.7/site-packages/rest_framework/views.py", line 469, in handle_exception self.raise_uncaught_exception(exc)
File "/usr/local/lib/python3.7/site-packages/rest_framework/views.py", line 480, in raise_uncaught_exception raise exc
File "/usr/local/lib/python3.7/site-packages/rest_framework/views.py", line 506, in dispatch response = handler(request, *args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/rest_framework/decorators.py", line 50, in handler return func(*args, **kwargs)
File "/code/.../forked_apps/api_customization/views/root.py", line 52, in api_root apis = PUBLIC_APIS(request, format)
File "/code/.../forked_apps/api_customization/views/root.py", line 29, in PUBLIC_APIS ("partners", reverse("partner-list", request=r, format=f)),
File "/usr/local/lib/python3.7/site-packages/rest_framework/reverse.py", line 47, in reverse url = _reverse(viewname, args, kwargs, request, format, **extra)
File "/usr/local/lib/python3.7/site-packages/rest_framework/reverse.py", line 60, in _reverse url = django_reverse(viewname, args=args, kwargs=kwargs, **extra)
File "/usr/local/lib/python3.7/site-packages/django/urls/base.py", line 87, in reverse return iri_to_uri(resolver._reverse_with_prefix(view, prefix, *args, **kwargs))
File "/usr/local/lib/python3.7/site-packages/django/urls/resolvers.py", line 685, in _reverse_with_prefix raise NoReverseMatch(msg)
django.urls.exceptions.NoReverseMatch: Reverse for 'partner-list' not found. 'partner-list' is not a valid view function or pattern name.
[09/Jul/2021 21:18:13] "GET /api/ HTTP/1.1" 500 136185
views/partner.py
from oscarapi.utils.loading import get_api_class
from oscar.core.loading import get_model
from rest_framework import generics
PartnerSerializer = get_api_class("serializers.product", "PartnerSerializer")
Partner = get_model("partner", "Partner")
class PublicPartnerList(generics.ListCreateAPIView):
queryset = Partner.objects.all()
serializer_class = PartnerSerializer
urls.py
from django.urls import path
from rest_framework.urlpatterns import format_suffix_patterns
from oscarapi.utils.loading import get_api_class
from oscarapi import urls
PublicPartnerList = get_api_class("views.partner", "PublicPartnerList")
urls.urlpatterns += [
path("partners1/", PublicPartnerList.as_view(), name="partner-list"),
]
urls.urlpatterns += format_suffix_patterns(urls.urlpatterns)
views/root.py
import collections
from django.conf import settings
from rest_framework.decorators import api_view
from rest_framework.response import Response
from rest_framework.reverse import reverse
__all__ = ("api_root",)
def PUBLIC_APIS(r, f):
return [
# other urls .......
("partners", reverse("partner-list", request=r, format=f)),
]
# remaining file content ......
I need a direction or a hint on how to achieve this
Any help is appreciated
I found a solution to this and might be helpful form someone
I had to do the same steps done for root.py file to get my app recognise the custom urls.py file
So what I did
copy the content of urls.py
modify the file to suit my needs
update my app urls.py file to point to the custom urls.py file of the api
//So from this
path("api/", include("oscarapi.urls")),
//To this
path("api/", include("APP_NAME.forked_apps.api_customization.urls")),
After a user is deleted, the tokens on the client side are still valid until the time has expired. The issue is django restframwework does not handle a request from a deleted user and causes a 500. How can I prevent this?
aceback (most recent call last):
File "/lib/python3.6/site-packages/django/core/handlers/exception.py", line 47, in inner
response = get_response(request)
File "/lib/python3.6/site-packages/django/core/handlers/base.py", line 179, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/lib/python3.6/site-packages/django/views/decorators/csrf.py", line 54, in wrapped_view
return view_func(*args, **kwargs)
File "/lib/python3.6/site-packages/django/views/generic/base.py", line 70, in view
return self.dispatch(request, *args, **kwargs)
File "/lib/python3.6/site-packages/rest_framework/views.py", line 505, in dispatch
response = self.handle_exception(exc)
File "/lib/python3.6/site-packages/rest_framework/views.py", line 465, in handle_exception
self.raise_uncaught_exception(exc)
File "/lib/python3.6/site-packages/rest_framework/views.py", line 476, in raise_uncaught_exception
raise exc
File "/lib/python3.6/site-packages/rest_framework/views.py", line 493, in dispatch
self.initial(request, *args, **kwargs)
File "/lib/python3.6/site-packages/rest_framework/views.py", line 410, in initial
self.perform_authentication(request)
File "/lib/python3.6/site-packages/rest_framework/views.py", line 324, in perform_authentication
request.user
File "/lib/python3.6/site-packages/rest_framework/request.py", line 220, in user
self._authenticate()
File "/lib/python3.6/site-packages/rest_framework/request.py", line 373, in _authenticate
user_auth_tuple = authenticator.authenticate(self)
File "/lib/python3.6/site-packages/rest_framework_jwt/authentication.py", line 33, in authenticate
payload = jwt_decode_handler(jwt_value)
File "/lib/python3.6/site-packages/rest_framework_jwt/utils.py", line 105, in jwt_decode_handler
secret_key = jwt_get_secret_key(unverified_payload)
File "/lib/python3.6/site-packages/rest_framework_jwt/utils.py", line 26, in jwt_get_secret_key
user = User.objects.get(pk=payload.get('user_id'))
File "/lib/python3.6/site-packages/django/db/models/manager.py", line 85, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "/lib/python3.6/site-packages/django/db/models/query.py", line 431, in get
self.model._meta.object_name
From the JWT token, you are decoding it to get the user_id - payload['user_id'].
The error is happening because of User.objects.get(pk=payload.get('user_id')).
Instead of doing a get, you could use a get_object_or_404. Use it like so:
from django.shortcuts import get_object_or_404
payload = jwt_decode_handler(jwt_value)
user = get_object_or_404 (User, pk=payload.get('user_id'))
This raises a 404 error when a user will not be found; and that will be bubbled up through your view and handlers to return a 404 statuscode.
The suggestion by Druhn Bala works but would return a 404 error which isn't ideal for my use case. Instead I came up with one that returns a custom response. ValidationError
from rest_framework.exceptions allows you to send a 400 error with a custom response.
def jwt_decode_handler(token):
options = {
'verify_exp': api_settings.JWT_VERIFY_EXPIRATION,
}
# get user from token, BEFORE verification, to get user secret key
try:
unverified_user = jwt.decode(token, None, False)
except User.DoesNotExist:
raise ValidationError({"errors": ['Oops! Something went wrong, please logout and login back in!']})
secret_key = unverified_user.securitysettings.jwt_secret #my custom way of storing a unique jwt uuid per user.
return jwt.decode(
token,
api_settings.JWT_PUBLIC_KEY or secret_key,
api_settings.JWT_VERIFY,
options=options,
leeway=api_settings.JWT_LEEWAY,
audience=api_settings.JWT_AUDIENCE,
issuer=api_settings.JWT_ISSUER,
algorithms=[api_settings.JWT_ALGORITHM]
)
Lastly we set the custom decode handler as the default in settings.py.
JWT_AUTH = {
'JWT_DECODE_HANDLER':
'registration.decoder.jwt_decode_handler',
...
}
I am using django rest_framework_swagger for my django project, everything was working fine but when I added some URLs with include method Swagger start giving me 500 internal server error.
I am not sure why this error is coming, I have checked but didn't find anything to fix this error.
I am using:
django 1.11.7
rest_framework_swagger 2.1.2
django rest framework 3.7.3
URLs
from django.conf.urls import url, include
from link_one.views import LinkOneViewSet
from link_two.views import LinkTwoViewSet
schema_view = get_swagger_view(title='My Project APIs')
urlpatterns = [
url(r'^$', schema_view),
url(r'^foo/(?P<foo_id>\w+)/bar/(?P<bar_id>\w+)/link1',
LinkOneViewSet.as_view({'get': 'list'})),
url(r'^foo/(?P<foo_id>\w+)/bar/(?P<bar_id>\w+)/link2',
LinkTwoViewSet.as_view({'get': 'list'})),
url(r'^foo/(?P<foo_id>\w+)/bar/(?P<bar_id>\w+)/link3',
include('link_three.urls'))
]+ static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
Error
[25/Jan/2021 14:03:31] ERROR [django.request.exception:135] Internal Server Error: /
Traceback (most recent call last):
File "C:\Users\myuser\conda_env\lib\site-packages\django\core\handlers\exception.py", line 41, in inner
response = get_response(request)
File "C:\Users\myuser\conda_env\lib\site-packages\django\core\handlers\base.py", line 187, in _get_response
response = self.process_exception_by_middleware(e, request)
File "C:\Users\myuser\conda_env\lib\site-packages\django\core\handlers\base.py", line 185, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\myuser\conda_env\lib\site-packages\django\views\decorators\csrf.py", line 58, in wrapped_view
return view_func(*args, **kwargs)
File "C:\Users\myuser\conda_env\lib\site-packages\django\views\generic\base.py", line 68, in view
return self.dispatch(request, *args, **kwargs)
File "C:\Users\myuser\conda_env\lib\site-packages\rest_framework\views.py", line 489, in dispatch
response = self.handle_exception(exc)
File "C:\Users\myuser\conda_env\lib\site-packages\rest_framework\views.py", line 449, in handle_exception
self.raise_uncaught_exception(exc)
File "C:\Users\myuser\conda_env\lib\site-packages\rest_framework\views.py", line 486, in dispatch
response = handler(request, *args, **kwargs)
File "C:\Users\myuser\conda_env\lib\site-packages\rest_framework_swagger\views.py", line 32, in get
schema = generator.get_schema(request=request)
File "C:\Users\myuser\conda_env\lib\site-packages\rest_framework\schemas\generators.py", line 278, in get_schema
links = self.get_links(None if public else request)
File "C:\Users\myuser\conda_env\lib\site-packages\rest_framework\schemas\generators.py", line 316, in get_links
link = view.schema.get_link(path, method, base_url=self.url)
File "C:\Users\myuser\conda_env\lib\site-packages\rest_framework\schemas\inspectors.py", line 179, in get_link
fields += self.get_serializer_fields(path, method)
File "C:\Users\myuser\conda_env\lib\site-packages\rest_framework\schemas\inspectors.py", line 302, in get_serializer_fields
serializer = view.get_serializer()
File "C:\Users\myuser\conda_env\lib\site-packages\rest_framework\generics.py", line 112, in get_serializer
return serializer_class(*args, **kwargs)
TypeError: 'list' object is not callable
After searching a lot and debugging, I have found a solution for this.
The solution is, don't use multiple serializer classes for a ViewSet.
In my one viewset I was doing this and this is what creating the problem.
class FooBarViewset(ModelViewSet):
serializer_class = [DefaultSerializer, BarSerializer, FooSerializer]
But I did not realize that this will cause the error.
Here is Fix that I am using
class FooBarViewset(ModelViewSet):
serializer_class = DefaultSerializer
You can also use the get_serializer method and map serializer class with an action, please check this answer Django rest framework, use different serializers in the same ModelViewSet
I have a django rest Backend app, and i use swagger to look and document my apis to the FE.
This worked fine, but I made some changes and now I get this error:
Internal Server Error: /
Traceback (most recent call last):
File "/home/notsoshabby/.local/share/virtualenvs/panda_pitch-UBt5SNMA/lib/python3.7/site-packages/django/core/handlers/exception.py", line 34, in inner
response = get_response(request)
File "/home/notsoshabby/.local/share/virtualenvs/panda_pitch-UBt5SNMA/lib/python3.7/site-packages/django/core/handlers/base.py", line 115, in _get_response
response = self.process_exception_by_middleware(e, request)
File "/home/notsoshabby/.local/share/virtualenvs/panda_pitch-UBt5SNMA/lib/python3.7/site-packages/django/core/handlers/base.py", line 113, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/notsoshabby/.local/share/virtualenvs/panda_pitch-UBt5SNMA/lib/python3.7/site-packages/django/views/decorators/csrf.py", line 54, in wrapped_view
return view_func(*args, **kwargs)
File "/home/notsoshabby/.local/share/virtualenvs/panda_pitch-UBt5SNMA/lib/python3.7/site-packages/django/views/generic/base.py", line 71, in view
return self.dispatch(request, *args, **kwargs)
File "/home/notsoshabby/.local/share/virtualenvs/panda_pitch-UBt5SNMA/lib/python3.7/site-packages/rest_framework/views.py", line 497, in dispatch
response = self.handle_exception(exc)
File "/home/notsoshabby/.local/share/virtualenvs/panda_pitch-UBt5SNMA/lib/python3.7/site-packages/rest_framework/views.py", line 457, in handle_exception
self.raise_uncaught_exception(exc)
File "/home/notsoshabby/.local/share/virtualenvs/panda_pitch-UBt5SNMA/lib/python3.7/site-packages/rest_framework/views.py", line 468, in raise_uncaught_exception
raise exc
File "/home/notsoshabby/.local/share/virtualenvs/panda_pitch-UBt5SNMA/lib/python3.7/site-packages/rest_framework/views.py", line 494, in dispatch
response = handler(request, *args, **kwargs)
File "/home/notsoshabby/.local/share/virtualenvs/panda_pitch-UBt5SNMA/lib/python3.7/site-packages/rest_framework_swagger/views.py", line 32, in get
schema = generator.get_schema(request=request)
File "/home/notsoshabby/.local/share/virtualenvs/panda_pitch-UBt5SNMA/lib/python3.7/site-packages/rest_framework/schemas/coreapi.py", line 153, in get_schema
links = self.get_links(None if public else request)
File "/home/notsoshabby/.local/share/virtualenvs/panda_pitch-UBt5SNMA/lib/python3.7/site-packages/rest_framework/schemas/coreapi.py", line 140, in get_links
link = view.schema.get_link(path, method, base_url=self.url)
AttributeError: 'AutoSchema' object has no attribute 'get_link'
HTTP GET / 500 [0.15, 127.0.0.1:44214]
/home/notsoshabby/Desktop/panda_pitch/django_project/settings.py
This error is not very clear as the AutoSchema is not a part of my code and the traceback is not showing me where in My code the problem is.
I made too many changes to go one by one and check which one caused that.
Anyone experienced this issue before? Any ideas on how to debug to find which change causes this issue?
I ran into the same issue, the fix is described here: https://www.django-rest-framework.org/community/3.10-announcement/
To summarize, Django Rest Framework 3.10 (released a few days ago) deprecated the CoreAPI based schema generation, and introduced the OpenAPI schema generation in its place. Currently to continue to use django-rest-swagger as is you need to re-enable the CoreAPI schema generation by adding the following config to the settings file:
REST_FRAMEWORK = { ... 'DEFAULT_SCHEMA_CLASS': 'rest_framework.schemas.coreapi.AutoSchema' }
I have a Django REST server which I updated recently from using Python 2.7 to 3.4. The server uses Django REST framework on top of Django, with django-allauth and django-rest-auth for Facebook login support.
Now, after the update, I cannot login to the server with Facebook anymore. When I send a POST to the server, I get the following error:
Internal Server Error: /rest-auth/facebook/
Traceback (most recent call last):
File "C:\Python34\lib\site-packages\django\core\handlers\base.py", line 132, in get_response response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Python34\lib\site-packages\django\views\decorators\csrf.py", line 58, in wrapped_view return view_func(*args, **kwargs)
File "C:\Python34\lib\site-packages\django\views\generic\base.py", line 71, in view return self.dispatch(request, *args, **kwargs)
File "C:\Python34\lib\site-packages\rest_framework\views.py", line 452, in dispatch response = self.handle_exception(exc)
File "C:\Python34\lib\site-packages\rest_framework\views.py", line 449, in dispatch response = handler(request, *args, **kwargs)
File "C:\Python34\lib\site-packages\rest_auth\views.py", line 51, in post if not self.serializer.is_valid():
File "C:\Python34\lib\site-packages\rest_framework\serializers.py", line 187, in is_valid self._validated_data = self.run_validation(self.initial_data)
File "C:\Python34\lib\site-packages\rest_framework\serializers.py", line 370, in run_validation value = self.validate(value)
File "C:\Python34\lib\site-packages\rest_auth\registration\serializers.py", line 31, in validate token.account = login.account
File "C:\Python34\lib\site-packages\django\db\models\fields\related.py", line 668, in __set__ (value, self.field.rel.to._meta.object_name)
File "C:\Python34\lib\site-packages\django\db\models\base.py", line 496, in __repr__ u = six.text_type(self)
File "C:\Python34\lib\site-packages\allauth\socialaccount\models.py", line 104, in __str__ return force_text(self.user)
File "C:\Python34\lib\site-packages\django\db\models\fields\related.py", line 608, in __get__ "%s has no %s." % (self.field.model.__name__, self.field.name)
django.db.models.fields.related.RelatedObjectDoesNotExist: SocialAccount has no user.
[13/Apr/2015 08:53:30]"POST /rest-auth/facebook/ HTTP/1.1" 500 115908
What could be causing this? I have done no changes to the code after updating Python and the libraries, and it worked before the update. I deleted the old database and created a new one via syncdb but it didn't help.
Thanks in advance.
RelatedObject has been removed in Django 1.8 in favour of ForeignObjectRel. Source
The allauth version you are using does not support Django 1.8.