Django CSRF and axios post 403 Forbidden - django

I use Django with graphene for back-end and Nuxt for front-end. The problem appears when I try post requests from nuxt to django. In postman everything works great, in nuxt I receive a 403 error.
Django
# url.py
urlpatterns = [
path('admin/', admin.site.urls),
path('api/', GraphQLView.as_view(graphiql=settings.DEBUG,
schema=schema)),
]
# settings.py
CORS_ORIGIN_WHITELIST = 'http://localhost:3000'
CORS_ALLOW_CREDENTIALS = True
CSRF_USE_SESIONS = False
CSRF_COOKIE_HTTPONLY = False
CSRF_COOKIE_SAMESITE = None
NuxtJs
# nuxt.config.js
axios: {
baseURL: 'http://127.0.0.1:8000/',
debug: false,
progress: true,
credentials: true
},
# plugins/axios.js
await $axios.onRequest((config) => {
config.headers.common['Content-Type'] = 'application/json'
config.xsrfCookieName = 'csrftoken'
config.xsrfHeaderName = 'X-CSRFToken'
const csrfCookie = app.$cookies.get('csrftoken')
config.headers.common['X-CSRFToken'] = csrfCookie
console.log(config)
# store/contact.js
import { AddMessage } from '../queries/contact.js'
export const actions = {
async send() {
const message = await this.$axios({
url: 'api/',
method: 'POST',
data: AddMessage
})
}
}
# queries/contact.js
export const AddMessage = {
query: `
mutation AddContact($input: AddMessageInput!){
addMessage(input: $input){
message{
name
email
body
terms
}
}
}
`,
variables: `
{
"input":{
"name": "test",
"email": "test#test.com",
"body": "test",
"terms": true,
}
}
`,
operationName: 'AddMessage'
}
Somethig that
Here are request headers from axios post. Something strange for me is the cookie with a wrong value. The good value of token is present in X-CSRFToken header.
Here is the log from axios post request. Another strange thing for me is the undefined headers: Content-Type and X-CSRFToken
Thank you!

I resolved this problem and I want to share the solution here.
The problem with wrong cookie value was generated by the front end app that managed (I don't remember how) to get csrf cookie from the back end app. In X-CSRFToken header was token received from response's Set-cookie header and in Cookie header was the cookie from back end app.
After I changed localhost with 127.0.0.1 and added
config.xsrfCookieName = 'csrftoken' in axios plugin
I was able to separate the apps, save and use cookies independent.
The second problem, with undefined headers was generated by axios. These 2 line of code resolved the problem. These were added also in axios onRequest method.
config.xsrfHeaderName = 'X-CSRFToken'
config.headers['Content-Type'] = 'application/json'

Related

Axios post request to route 'appName/v1/users/' (Djoser) throws 401 error but Postman doesn't

I'm new to Django and trying to build basic user authentication with REST API and a Vue.js frontend. To send the request, I am using axios, which is configured first in a seperate composable axios.js:
import axios from 'axios'
axios.defaults.withCredentials = true
axios.defaults.baseURL = 'http://localhost:8000'
and used inside a register.vue component:
const submitRegistration = () => {
axios.post('api/v1/users/', {username: 'userName', password: 'userPassword'})
.then(res => {
console.log(res)
})
}
To make it simple, I'm sending a data-object with predefined strings, as you can see above. The request gets sent to one of the djoser routes in projectName/urls.py:
from django.contrib import admin
from django.urls import path, include
urlpatterns = [
path('admin/', admin.site.urls),
path('api/v1/', include('djoser.urls')),
path('api/v1/', include('djoser.urls.authtoken')),
]
This however, throws a 401 Unauthorized Error:
code: "ERR_BAD_REQUEST"
config: {transitional: {…}, adapter: Array(2), transformRequest: Array(1), transformResponse: Array(1), timeout: 0, …}
message: "Request failed with status code 401"
name: "AxiosError"
request: XMLHttpRequest {onreadystatechange: null, readyState: 4, timeout: 0, withCredentials: true, upload: XMLHttpRequestUpload, …}
response: {data: {…}, status: 401, statusText: 'Unauthorized', headers: AxiosHeaders, config: {…}, …}
stack: "AxiosError: Request failed with status code 401\n at settle (http://localhost:3000/node_modules/.vite/deps/axios.js?v=a45c5ec0:1120:12)\n at XMLHttpRequest.onloadend (http://localhost:3000/node_modules/.vite/deps/axios.js?v=a45c5ec0:1331:7)"
I've configured settings.py like so:
INSTALLED_APPS = [
...,
'corsheaders',
'rest_framework',
'rest_framework.authtoken',
'djoser'
]
MIDDLEWARE = [
'corsheaders.middleware.CorsMiddleware',
...,
]
CORS_ALLOWED_ORIGINS = ['http://localhost:3000']
CORS_ALLOW_CREDENTIALS = True
REST_FRAMEWORK = {
'DEFAULT_AUTHENTICATION_CLASSES': (
'rest_framework.authentication.TokenAuthentication',
),
'DEFAULT_PERMISSION_CLASSES': (
'rest_framework.permissions.IsAuthenticated',
)
}
Edit:
The problem might be caused by authToken. In the root vue component app.vue, I am checking the store for an authentication token and setting an axios header accordingly:
onMounted(() => {
if (store.authToken) {
axios.defaults.headers.common['Authorization'] = `Token ${store.authToken}`
}
})
If I remove this code, the error turns into 400 BAD_REQUEST. Although I don't understand why one would need an authToken when registering a new user.
store.authToken is set during initialization:
import {reactive} from "vue";
export const store = reactive({
authToken: localStorage.authToken ?? null,
})
and shoud be null, when a new user is registered.
Edit2:
I followed some advice and used Postman to send the post request to http://localhost:8000/api/v1/users/ and it works. A new user is created.
My authentication check in the vue root component app.vue was flawed:
<script setup>
onMounted(() => {
if (store.authToken) {
axios.defaults.headers.common['Authorization'] = `Token ${store.authToken}`
}
})
</script>
store.authToken always returned true despite being null because it was fetched from localStorage being a string. JSON.parse() solved the problem.

CSRF cookie not set in react native axios

I am trying to do my first app in react native and django rest framework.
I created a simple server based on tutorial with default login page.
I am trying to make a POST to this login page, but I am getting error:
Forbidden (CSRF cookie not set.): /api-auth/login/
My POST looks like:
const sendLoginCredencials = (data) => {
axios.defaults.headers.common['X-CSRF-TOKEN'] = data.csrf_token;
axios.post('http://127.0.0.1:8000/api-auth/login/',
{
username: 'username',
password: 'passwd',
},
)
.then((response) => {
console.log(response)
})
.catch(error => {
console.error('error', error);
});
}
Settings.py has this lines:
from corsheaders.defaults import default_headers
CORS_ALLOW_HEADERS = list(default_headers) + [
'X-CSRF-TOKEN',
]
CORS_ALLOW_ALL_ORIGINS = True
CORS_ALLOW_CREDENTIALS = True
CSRF_COOKIE_SECURE = True
CSRF_COOKIE_NAME = "csrftoken"
CSRF_HEADER_NAME = 'X-CSRF-TOKEN'
I have tested many answers and combinations. None of them worked and I admit that I feel confused. Could anyone tell me how to set the header correctly and what excatly I should set in settings.py ?
Best regards!

Django fetching data with HttpOnly cookie says 401 (Unauthorized)

I have been trying to use HttpOnly cookie with Django for two days but couldn't solve it yet. I tried adding all of these to my settings.py file
SESSION_COOKIE_HTTPONLY=True
SESSION_COOKIE_PATH = '/;HttpOnly'
LANGUAGE_COOKIE_HTTPONLY=True
CSRF_COOKIE_HTTPONLY=True
My home.html file
fetch('http://127.0.0.1:8000/api/books/', {
method: 'POST',
mode: 'same-origin',
credentials: 'include'
}).then(function(response) {response.json()}).then(
event=>console.log(event)
)
My api is working and i am signed in but it still gives me "401 (Unauthorized)" response. I searched in google for days and still couldn't solve it. I think i am missing something but don't know what
You have to explicitly set the csrf header.
As mentioned in Django docs
You should include csrf in your html template when using CSRF_USE_SESSIONS or CSRF_COOKIE_HTTPONLY is True
So somewhere in your template file add
<html>
<body>
{% csrf_token %}
...
</body>
</html>
make sure in your settings.py
REST_FRAMEWORK = {
'DEFAULT_AUTHENTICATION_CLASSES': [
'rest_framework.authentication.SessionAuthentication',
]
}
SessionAuthentication is first
Then in your template file you need to retrieve the csrf from hidden element and add it to the fetch request headers
const csrftoken = document.querySelector('[name=csrfmiddlewaretoken]').value;
fetch('http://localhost:8000/api/books/', {
method: 'POST',
mode: 'same-origin',
credentials: 'include',
headers: {
'X-CSRFToken': csrftoken
}
}).then(function(response) {
response.json()}).then(
event=>console.log(event)
)
After this if you're logged in you'll be able to access the desired route.
(Make sure you are logged in into the admin, otherwise csrf will be passed in the request but you'll still get 403)

Django React Axios

I am trying to make a post request to a Django server using React with Axios. However, I am getting a redirect 302 on the server side.
Just followed all suggestions in this post here CSRF with Django, React+Redux using Axios
unsuccessfully :(
However, what I have done so far is the following:
Sat the default axios CookieName and HeaderName (on the javascript side):
axios.defaults.xsrfHeaderName = "X-CSRFToken";
axios.defaults.xsrfCookieName = "XCSRF-Token";
Got this in settings.py as well:
CSRF_COOKIE_NAME = "XCSRF-Token"
And here is how the post request looks like:
axios(
{
method: 'post',
url: `/api/${selectedEntryType}_entry`,
data: {
"test": "test"
},
headers: {
'X-CSRFToken': document.cookie.split('=')[1],
'X-Requested-With': 'XMLHttpRequest',
'Content-Type': 'application/json',
}
}
)
Another thing that I have tried is to make the post request from the Django rest api UI:
and it does work successfully.
The only differences in the Request Headers when I make the request from the UI and from JS are:
Accept, Content-Length, and Referer, which I don't see how could they be problematic.
Please help.
Managed to fix it by changing the url (url:'/en/api/endpoint/') I was posting to, because apparently for a POST request:
You called this URL via POST, but the URL doesn't end in a slash and you have APPEND_SLASH set. Django can't redirect to the slash URL while maintaining POST data. Change your form to point to 127.0.0.1:8000/en/api/endpoint/ (note the trailing slash), or set APPEND_SLASH=False in your Django settings
After that I started getting Forbidden 403, but by adding:
from django.views.decorators.csrf import csrf_protect
from django.utils.decorators import method_decorator
#method_decorator(csrf_protect)
def post(self, request):
return Response()
and also changed the defaults in JS to:
axios.defaults.xsrfHeaderName = "X-CSRFToken";
axios.defaults.xsrfCookieName = "csrftoken";
and removed CSRF_COOKIE_NAME = "XCSRF-Token" from settings.py.
It worked.
Hope this helps somebody in the future.

Angular 4 HTTP requests to Django Rest Framework

I'm having issues finding the answer anywhere to an issue I'm having related to the (I think) Authorization header in an HTTP request I'm sending from Angular 4 to the Django Rest Framework API I've created. Lets get down to it:
EDIT:
Confirmed that the problem relates to authorization since I am also using django-cors-headers now to rid myself of CORS issues for the 4200 port (since it is considered a different origin). The problem that remains is simply that I get the message "Unauthorized" when making requests towards the API. I'm starting to think it is an encoding issue since the following message is shown when I attempt the following request with httpie:
http GET http://localhost:8000/api/groups/ "Authorization: Basic admin:password"
And then the message is shown:
{
"detail": "Invalid basic header. Credentials not correctly base64 encoded."
}
In settings.py, I've made sure that both a permission class and authentication class have been made available.
REST_FRAMEWORK = {
'DEFAULT_AUTHENTICATION_CLASSES': [
'rest_framework.authentication.BasicAuthentication',
],
'DEFAULT_PERMISSION_CLASSES': [
'rest_framework.permissions.IsAdminUser'
],
...
CORS_ORIGIN_WHITELIST = [
'localhost:4200',
]
In views.py, this is perhaps where my fault is since the console error I get when trying to send the request from Angular -> Rest API is that 'No 'Access-Control-Allow-Origin' header is present on the requested resource.' which is untrue since it does NOT complain about this when I remove the authentication need.
class UserViewSet(viewsets.ModelViewSet):
queryset = User.objects.all().order_by('-date_joined')
serializer_class = UserSerializer
permission_classes = (IsAdminUser, )
authentication_classes = (BasicAuthentication, )
def list(self, request):
queryset = User.objects.all().order_by('-date_joined')
serializer = UserSerializer(queryset, many=True, context={'request': request})
return Response(serializer.data,
status=200)
The Angular dev server is running on localhost:4200 while django is left on its default of localhost:8000.
I'll include the urls.py for good measure:
from django.conf.urls import url, include
from rest_framework import routers
from backend.api import views
from django.contrib import admin
router = routers.DefaultRouter()
router.register(r'users', views.UserViewSet)
router.register(r'groups', views.GroupViewSet)
router.register(r'info', views.InfoViewSet)
urlpatterns = [
url(r'^api/', include(router.urls)),
url(r'^api-auth/', include('rest_framework.urls', namespace='rest_framework')),
url(r'^admin/', admin.site.urls),
]
NOTE that I can make the request and get a response just fine with httpie using the authorization header like so:
http GET http://localhost:8000/api/users/ -a admin:password
Finally, here is the Angular code for making the request (I included everything so that imports can be checked as well):
import { Component, OnInit } from '#angular/core';
import { HttpClient, HttpHeaders } from '#angular/common/http';
#Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.css']
})
export class AppComponent implements OnInit {
title = 'app';
results: string[];
constructor(private http: HttpClient) {}
ngOnInit(): void {
this.http.get(
'http://localhost:8000/api/users/',
{ headers: new HttpHeaders().set('Authorization', 'Basic admin:password'), }
).subscribe(
data => {
this.results = data;
},
err => {
console.log("ERROR RETREIVING USERS");
});
}
}
I have also imported HttpClientModule and listed it under 'imports' in my app.module.
Separate ports are considered different origins, so you will of course, get a Cross-Origin error (CORS) on localhost. This is a browser security feature alongwith your server.
Instal django-cross-header package for resolving cross-domain error.
I use the same Backend Framework , and the solution I've found was to build my project with the right host using
ng build --production -host=myDomain.com // try localhost -p 8080 in your case
and replace
Access-Control-Allow-Origin: 'http://localhost:4200'
with
Access-Control-Allow-Origin: '*'
The problem was solved in two ways. Firstly, I did not correctly ensure that CORS would be enabled from the origin of where Angular 4 was sending the request. #kmcodes solution of using django-cors-headers was a good one and I no longer had an issue with 'Access-Control-Allow-Origin' being missing after adding it to my project.
The second part of the problem was in the header I was putting on to the request sent by Angular 4. The following was the change I needed to make:
this.http.get(
'http://localhost:8000/api/users/',
{ headers: new HttpHeaders().set('Authorization', 'Basic admin:password'), }
).subscribe(
data => {
this.results = data;
},
err => {
console.log("ERROR RETREIVING USERS");
});
To this:
this.http.get(
'http://localhost:8000/api/users/',
{ headers: new HttpHeaders().set('Authorization', 'Basic ' + btoa('admin:password')), }
).subscribe(
data => {
this.results = data;
},
err => {
console.log("ERROR RETREIVING USERS");
});
I got the hint when using httpie to inspect my request and saw that when I didn't use the -a flag to add authentication parameters but rather the 'Authorization' header. This gave me an error stating that the request failed with error code 401, unauthorized, since the username:password part was not encoded with base64. In Angular 4 (and maybe before) btoa() solves this as above.