djangographqlgraphene-pythonvue-apollographene-django

Does a graphene django Endpoint expects a X-Csrftoken and CsrfCookie at the same time?

Using:

I am testing single page vue app´s with Django, GraphQL & Vue-Apollo.

If i use csrf_exempt on my view everything works in the frontend. 

urlpatterns = [
<...>
   path("graphql", csrf_exempt(GraphQLView.as_view(graphiql=True))),
<...>

Now i wanted to CSRF protect my request. Within the process of understanding the CSRF protection, i thought all Django GraphQLView needs is to receive the "value" of the X-Csrftoken in the Request Header. So i focused on sending the csrf Value in different ways...via a single view like this

path('csrf/', views.csrf),
path("graphql", GraphQLView.as_view(graphiql=True)),

or by ensure a cookie with ensure_csrf_cookie

Afterwards in my ApolloClient i fetch thes Value and send him back with the request Header .

This i what Django prints when i send a GraphQL request from a Django-Vue page.

Forbidden (CSRF token missing or incorrect.): /graphql

Parallel i always test with thegraphiql IDE and these requests still working. I also print everytime the info.context.headers value of my query resolver.

{'Content-Length': '400', 'Content-Type': 'application/json',
'Host': 'localhost:7000', 'Connection': 'keep-alive',
'Pragma': 'no-cache', 'Cache-Control': 'no-cache', 
'Accept': 'application/json', 'Sec-Fetch-Dest': 'empty', 'X-Csrftoken': 'dvMXuYfAXowxRGtwSVYQmpNcpGrLSR7RuUnc4IbIarjljxACtaozy3Jgp3YOkMGz',
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.122 Safari/537.36',
'Origin': 'http://localhost:7000',
'Sec-Fetch-Site': 'same-origin', 'Sec-Fetch-Mode': 'cors',
'Referer': 'http://localhost:7000/graphql', 'Accept-Encoding': 'gzip, deflate, br', 'Accept-Language': 'en-US,en;q=0.9,de;q=0.8',
'Cookie': 'sessionid=jqjvjfvg4sjmp7nkeunebqos8c7onhiz; csrftoken=dvMXuYfAXowxRGtwSVYQmpNcpGrLSR7RuUnc4IbIarjljxACtaozy3Jgp3YOkMGz'}

i recognized that the GraphQLView IDE alway puts the X-Csrftoken and the Cookie:..csrftoken. also in the request. if delete the csrftoken-cookie of a GraphQLView IDE before sending the request, i get this

Forbidden (CSRF cookie not set.): /graphql

The IDE shows a long, red report

.... CSRF verification failed. Request aborted.</p>\n\n\n  
<p>You are seeing this message because this site requires a CSRF cookie when submitting forms.
This cookie is required for security reasons, to ensure that your browser is not being hijacked by third parties.</p>\n

The Information of the IDE say´s the request needs a CSRF cookie. But all read until now in Forums, Doc´s, was more related to the value itself. Meaning all you need is to send the csrf value within the Header as X-Csrftoken or so and the View would do the magic.

Question

Therefore my Question is:

Do i have to set the X-Csrftoken and the Cookie:..csrftoken at the same time in my ApolloClient to make a request on my django GraphQLView ?

Or is it also possible to simple send only the X-Csrftoken without a csrf-cookie and vice versa?

Solution

  • After long time and a pause to follow the issue, i tried once more and found a solution.

    Setup

    Presumption

    Problem Recap

    After revisiting my problem i noticed i have 2 Issue. One was the Browser denied graphQL request because of CORS. And the Second was the CSRF Token.

    Solution

    To Fix the CORS Issue i noticed that my uri of the Apollo Client was not the same as my Django Dev Server. Instead of http://127.0.0.1:7000/graphql it was set to http://localhost:7000/graphql. I also set the credentials (see vue-apollo.js)

    To Fix the CSRF i did 3 things

    vue-apollo.js

    import Vue from 'vue'
// import path for the new Apollo Client 3 and Vue-Apollo
import { ApolloClient, InMemoryCache } from '@apollo/client/core';
import VueApollo from 'vue-apollo'
import Cookies from 'js-cookie'

  
// Create the apollo client
const apolloClient = new ApolloClient({
  // -------------------
  // # Required Fields #
  // -------------------
  // URI - GraphQL Endpoint
  uri: 'http://127.0.0.1:7000/graphql',
  // Cache
  cache: new InMemoryCache(),

  // -------------------
  // # Optional Fields #
  // -------------------
  // DevBrowserConsole
  connectToDevTools: true,
  // Else
  credentials: 'same-origin',
  headers: {
    'X-CSRFToken': Cookies.get('csrftoken')
  }
});
  
// create Vue-Apollo Instance
const apolloProvider = new VueApollo({
  defaultClient: apolloClient,
})
  
// Install the vue plugin
Vue.use(VueApollo)
  
export default apolloProvider

    Vue.config.js

    const BundleTracker = require("webpack-bundle-tracker");

// hook your apps
const pages = {
    'page_1': {
        entry: './src/page_1.js',
        chunks: ['chunk-vendors']
    },
    'page_2': {
        entry: './src/page_2.js',
        chunks: ['chunk-vendors']
    },
}

module.exports = {
    pages: pages,
    filenameHashing: false,
    productionSourceMap: false,

    // puplicPath: 
    // Tells Django where do find the bundle.
    publicPath: '/static/',

    // outputDir:
    // The directory where the production build files will be generated - STATICFILES_DIRS
    outputDir: '../dev_static/vue_bundle',
 
    
    chainWebpack: config => {

        config.optimization
        .splitChunks({
            cacheGroups: {
                vendor: {
                    test: /[\\/]node_modules[\\/]/,
                    name: "chunk-vendors",
                    chunks: "all",
                    priority: 1
                },
            },
        });


        // Don´t create Templates because we using Django Templates
        Object.keys(pages).forEach(page => {
            config.plugins.delete(`html-${page}`);
            config.plugins.delete(`preload-${page}`);
            config.plugins.delete(`prefetch-${page}`);
        })

        // create webpack-stats.json. 
        // This file will describe the bundles produced by this build process.
        // used eventually by django-webpack-loader
        config
            .plugin('BundleTracker')
            .use(BundleTracker, [{filename: '/webpack-stats.json'}]);


        // added to use ApolloQuery Tag (Apollo Components) see vue-apollo documentation
        config.module
        .rule('vue')
        .use('vue-loader')
            .loader('vue-loader')
            .tap(options => {
            options.transpileOptions = {
                transforms: {
                dangerousTaggedTemplateString: true,
                },
            }
            return options
            })
        
        // This will allows us to reference paths to static 
        // files within our Vue component as <img src="~__STATIC__/logo.png">
        config.resolve.alias
            .set('__STATIC__', 'static')

        // configure a development server for use in non-production modes,
        config.devServer
            .public('http://localhost:8080')
            .host('localhost')
            .port(8080)
            .hotOnly(true)
            .watchOptions({poll: 1000})
            .https(false)
            .headers({"Access-Control-Allow-Origin": ["*"]})
        
        // DO have Webpack hash chunk filename
        config.output
            .chunkFilename("[id].js")
            },

    devServer: {
        writeToDisk: true
      }
};