How to generate csrf token in ionic.?
i m using django framework as server and wish to post data to server.
This are my error:
Forbidden (403)
CSRF verification failed. Request aborted.
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.
If you have configured your browser to disable cookies, please re-enable them, at least for this site, or for 'same-origin' requests.
Help
Reason given for failure:
CSRF cookie not set.
Here are my code:
postRequest() {
var headers = new Headers();
headers.append("Accept", 'application/json');
headers.append('Content-Type', 'application/json');
let options = new RequestOptions({ headers: headers });
let body1 = {
site: this.selectedSite,
zone: this.selectedZone,
user: this.username,
categoryType: this.problemType,
conNo:'012-8888888'}
this.http.post("http://localhost:8000/apidb/simple_upload", JSON.stringify(body1), options)
.subscribe(data => {
resolve(data);
}, error => {
console.log(error);
});}
It doesn't look like your content type in the request is being set. You need to set it to 'applicatioon/json' and then it won't require CSRF
Related
I'm building a web application with Django as my backend framework and DjangoRestFramework as webAPI, React Native as the frontend, and apisauce as an HTTP client. When I try to make a POST request from the frontend to the backend, I get this error :
CSRF Failed: CSRF token missing
I don't get the error when I use postman.
Is it good if I comment this out django.middleware.csrf.CsrfViewMiddleware ?
CSRF tokens are used to prevent cross-site request forgery attacks. This error implies that you are not providing CSRF in your POST request. I was wondering about your reason to use apisauce instead of axios, since axios automatic inclusion of the CSRF token.
Meaning you would not need to comment "django.middleware.csrf.CsrfViewMiddleware"
and ensure that your app is CSRF attack free.
EDIT:
Ok, if you must use apisauce, you can manual set the csrf token using following code:
import apisauce from 'apisauce';
const api = apisauce.create({
baseURL: 'https://yourbackend.com/api',
});
const csrftoken = getCookie('csrftoken');
api.setHeader('X-CSRFToken', csrftoken);
api.post('/endpoint', {
data: 'yourdata',
})
.then((response) => {
console.log(response);
})
.catch((error) => {
console.log(error);
});
function getCookie(name) {
// you may have to change this function a bit
const value = `; ${document.cookie}`;
const parts = value.split(`; ${name}=`);
if (parts.length === 2) return parts.pop().split(';').shift();
}
In my Postman collection, I have a pre-request script that ensures I have a valid JWT token available for authentication. It looks similar to the following (I have removed the logic of checking expiration and only fetching a new token if needed):
function get_and_set_jwt() {
let base_url = pm.environment.get("BASE_URL")
pm.sendRequest({
url: base_url + '/api/auth/',
method: 'POST',
header: {
'content-type': 'application/json',
'cookie': ''
},
body: {
mode: 'raw',
raw: JSON.stringify({ email: pm.environment.get("USER_EMAIL_ADDRESS"), password: pm.environment.get("USER_PASSWORD") })
}
}, function (err, res) {
let jwt = res.json().token
postman.setEnvironmentVariable("JWT", jwt)
});
}
get_and_set_jwt();
I am attempting to set 'cookie': '' so that the request from this script will be made with no cookies. The backend I am working with sets a session cookie in addition to returning the JWT, but I want to force all future requests (when I need to renew the JWT) to not include that session information.
Unfortunately, if I check the Postman console, I see that the requests are still being sent with the cookie header, and the session cookie that was set by the earlier response. I have even tried overriding it by setting 'cookie': 'sessionid=""', but that just yields a request that includes two session ids in the cookie header (it looks like sessionid=""; sessionid=fasdflkjawew123sdf123;)
How can I send a request with pm.sendRequest with either a completely blank cookie header, or without the header at all?
I'm building an api with api platform and a front with react (using the react template of apiplatform). I configured authentification and a return to client with httponly cookie which contains the jwt. But when my front does a request, it does not send this cookie... And I absolutly don't know why, I thought it was automaticaly done by browser till it's on same domain.
Here is an example of the network history from my client :
my app is running on https://localhost:3000/
Do you see something wrong in theses request ? Or does anyone has an idea of what it could come from ?
My app and api are using https and have a valid certificate...
If you need any additional info, feel free to ask, and thanks all !!!
I assume you work with either xhr or fetch.
Cookies ignore ports, but cross origin policy does not.
You work with two urls (http://localhost:8443 and http://localhost:3000). So your app is making cross origin request because ports differ.
xhr requires to set its withCredentials property to true in order to send cookies with cross-origin request.
fetch requires its credentials parameter to be set to include.
Server side, set the Access-Control-Allow-Credentials to true.
Also note that your cookie is samesite=strict. In production, if you use two domains for your app and your api, it will never be sent.
The real question here is why using a cookie instead of Authorization header ?
Ok, I didn't know... I've found nothing on it when I was trying to solve my prob.
I'm using cookie httponly because :
I want to try it :D
Lot of security articles says that it's more secure because client api can't access theses cookies, browser manages it. It seems to counter xss and stealth of cookies, but if my cookie is stored with localforage, I think I do not have this problem, but with localStorage I do, no ?
It's cool no ! I've done too many project with classic bearer auth, I can improve it now
A big thanks for your nice answer rugolinifr !
Okay, I'm still having my issue finally... My browser is not sending the cookie...
My auth request returning bearer cookie (valid, tested with postman)
My cookie received from auth request
My GET request without that auth cookie
I'm missing something but I don't find it...
I've set credentials, Access-Control-Allow-Credentials, samesite is 'none' for sending it everywhere. Is there something else to do ? Or maybe I'm doing a stupid little thing that is wrong ?
I can't answer in comment because there's code...
So, It's managed by the react admin base of api-platform (https://api-platform.com/docs/admin/), but my config is like this :
const fetchHeaders = {
credentials: 'include',
};
const fetchHydra = (url, options = {}) =>
baseFetchHydra(url, {
...options,
headers: new Headers(fetchHeaders),
});
const apiDocumentationParser = (entrypoint) =>
parseHydraDocumentation(entrypoint, { headers: new Headers(fetchHeaders) }).then(
({ api }) => ({ api }),
(result) => {
...
},
);
const dataProvider = baseHydraDataProvider(entrypoint, fetchHydra, apiDocumentationParser, true);
So, all get, post etc request for datas are based on this conf
But my first call for authentication is done like that :
login: ({ username, password }) => {
const request = new Request(`${entrypoint}/authentication_token`, {
method: 'POST',
body: JSON.stringify({ username, password }),
headers: new Headers({ 'Content-Type': 'application/json' }),
});
return fetch(request).then((response) => {
if (response.status < 200 || response.status >= 300) {
localStorage.removeItem('isAuthenticated');
throw new Error(response.statusText);
}
localStorage.setItem('isAuthenticated', 'true');
});
},
ok, I've found solution :
add credentials to the auth request, if header is not added, cookie won't be stored by browser.
And second point :
const fetchHydra = (url, options = {}) =>
baseFetchHydra(url, {
...options,
credentials: 'include',
});
credentials: 'include' is not in headers option... Nice !
Faced the same problem.Tried out many solutions but didn't work.At last found out it was the cors configuration of node backend that was causing the problem. Configured cors like the following way to solve the problem.
const corsConfig = {
origin: true,
credentials: true,
};
app.use(cors(corsConfig));
app.options('*', cors(corsConfig));
I am trying to implement the following workflow.
Populate an html form
Submit it
The endpoint that is receiving the request(expressjs) does some processing and sends a request with the req.body to another backend(django)
Django returns a response to expressjs
The problem is that I am being stuck at the csrf level and more specifically getting this error:
invalid csrf token
403
ForbiddenError: invalid csrf token
Here is the code that I am using for the request:
router.post('/registration', function (req, res, next) {
axios.post('http://localhost:8000/register_extended/', JSON.stringify(req.body), {
'Content-Type': 'application/json'
}).then(() => {
console.log('success')
}).catch(() => {
console.log('failure')
})
res.send('respond with a resource');
});
});
and here are my middlewares
app.use(bodyParser.urlencoded({ extended: true }));
app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(csrfMiddleware);
How can I provide a valid csrf token for my needs? Axios is supposed to the handling itself, thats why I chose it.
Django uses CSRF tokens to prevent CSRF attacks from untrusted domains. You can whitelist your site or IP where express is running to make post requests without a CSRF token. Add this to your Django 'settings.py':
CSRF_TRUSTED_ORIGINS = [
"yoursite.runningexpress.here.com"
]
I am trying out the new Fetch API but is having trouble with Cookies. Specifically, after a successful login, there is a Cookie header in future requests, but Fetch seems to ignore that headers, and all my requests made with Fetch is unauthorized.
Is it because Fetch is still not ready or Fetch does not work with Cookies?
I build my app with Webpack. I also use Fetch in React Native, which does not have the same issue.
Fetch does not use cookie by default. To enable cookie, do this:
fetch(url, {
credentials: "same-origin"
}).then(...).catch(...);
In addition to #Khanetor's answer, for those who are working with cross-origin requests: credentials: 'include'
Sample JSON fetch request:
fetch(url, {
method: 'GET',
credentials: 'include'
})
.then((response) => response.json())
.then((json) => {
console.log('Gotcha');
}).catch((err) => {
console.log(err);
});
https://developer.mozilla.org/en-US/docs/Web/API/Request/credentials
Have just solved. Just two f. days of brutforce
For me the secret was in following:
I called POST /api/auth and see that cookies were successfully received.
Then calling GET /api/users/ with credentials: 'include' and got 401 unauth, because of no cookies were sent with the request.
The KEY is to set credentials: 'include' for the first /api/auth call too.
If you are reading this in 2019, credentials: "same-origin" is the default value.
fetch(url).then
Programmatically overwriting Cookie header in browser side won't work.
In fetch documentation, Note that some names are forbidden. is mentioned. And Cookie happens to be one of the forbidden header names, which cannot be modified programmatically. Take the following code for example:
Executed in the Chrome DevTools console of page https://httpbin.org/, Cookie: 'xxx=yyy' will be ignored, and the browser will always send the value of document.cookie as the cookie if there is one.
If executed on a different origin, no cookie is sent.
fetch('https://httpbin.org/cookies', {
headers: {
Cookie: 'xxx=yyy'
}
}).then(response => response.json())
.then(data => console.log(JSON.stringify(data, null, 2)));
P.S. You can create a sample cookie foo=bar by opening https://httpbin.org/cookies/set/foo/bar in the chrome browser.
See Forbidden header name for details.
Just adding to the correct answers here for .net webapi2 users.
If you are using cors because your client site is served from a different address as your webapi then you need to also include SupportsCredentials=true on the server side configuration.
// Access-Control-Allow-Origin
// https://learn.microsoft.com/en-us/aspnet/web-api/overview/security/enabling-cross-origin-requests-in-web-api
var cors = new EnableCorsAttribute(Settings.CORSSites,"*", "*");
cors.SupportsCredentials = true;
config.EnableCors(cors);
This works for me:
import Cookies from 'universal-cookie';
const cookies = new Cookies();
function headers(set_cookie=false) {
let headers = {
'Accept': 'application/json',
'Content-Type': 'application/json',
'X-CSRF-Token': $('meta[name="csrf-token"]').attr('content')
};
if (set_cookie) {
headers['Authorization'] = "Bearer " + cookies.get('remember_user_token');
}
return headers;
}
Then build your call:
export function fetchTests(user_id) {
return function (dispatch) {
let data = {
method: 'POST',
credentials: 'same-origin',
mode: 'same-origin',
body: JSON.stringify({
user_id: user_id
}),
headers: headers(true)
};
return fetch('/api/v1/tests/listing/', data)
.then(response => response.json())
.then(json => dispatch(receiveTests(json)));
};
}
My issue was my cookie was set on a specific URL path (e.g., /auth), but I was fetching to a different path. I needed to set my cookie's path to /.
If it still doesn't work for you after fixing the credentials.
I also was using the :
credentials: "same-origin"
and it used to work, then it didn't anymore suddenly, after digging much I realized that I had change my website url to http://192.168.1.100 to test it in LAN, and that was the url which was being used to send the request, even though I was on http://localhost:3000.
So in conclusion, be sure that the domain of the page matches the domain of the fetch url.