I am trying to build an application using VueJS and Django. I am also using Graphene-Django library, as the project utilize GraphQL.
Now, The authentication works fine and i get a JWT Token back.
But when i use the token for other queries that need authentication, i got this error in Vue:
"Error decoding signature"
and the Django Log also returns this:
graphql.error.located_error.GraphQLLocatedError: Error decoding signature
jwt.exceptions.DecodeError: Not enough segments
ValueError: not enough values to unpack (expected 2, got 1)
the bizarre thing is that the same query when executed in Postman just works fine.
As i mentioned in the title is use Axios for my requests, here's an example of a request:
axios({
method: "POST",
headers: { Authorization: "JWT " + localStorage.getItem("token") },
data: {
query: `{
dailyAppoint (today: "${today}") {
id
dateTime
}
}`
}
});
Note: It uses 'JWT' not 'Bearer' because somehow 'Bearer' didn't work for me.
Ok, couple of questions, does you API work without Vue.js from curl. Generate token, check API from curl.
If it does, then check the Headers sent from the request, from Network Inspector, mozilla dev tools/chrome devtools. And update your Post with those RAW Headers.
This particular error arises when your public key is unable to decode the string[token] signed by your private key. Which ultimately means the access token has been tampered with. It could also mean you're sending values like 'unkown'-- JS state initialization error.
Check the RAW headers of the request. It'll help.
Use a request interceptor to set the Authorization header:
axios.interceptors.request.use(config => {
if (localStorage.getItem("token") != null)
config.headers["Authorization"] = "JWT " + localStorage.getItem("token");
return config;
});
Related
I am building an application. The client is built with Next.js and the backend with Django and Django REST framework.
In this application, I would like to have social login.
So far, my situation is this.
I have set up the OAuth on the Google dashboard
On the client, I am using next-auth - The client is successfully calling Google and getting an access token from there.
On the client, the callback that runs after getting the access token from Google makes a call my Django API.
I have set up the backend with dj_rest_auth - My settings are almost identical to the ones described here.
Once the client callback runs and calls my Django API with the access token from Google, I successfully get on the client an access token and a refresh token.
If it is a new user loggin in the first time, a new user is created in Djangos DB
const response = await fetch(`${djangoAPIurl}/api/social/login/google/`, {
method: 'POST',
headers: {
'Content-Type': 'application/json'
},
body: JSON.stringify({
access_token: accessToken,
id_token: idToken
})
});
const data = await response.json();
const { access_token, refresh_token } = data;
Both access_token and refresh_token are defined and appear to be valid tokens.
So far, everything happens as expected. My issue appears after this point.
In my api, I have another view defined.
#api_view(['GET'])
#authentication_classes([SessionAuthentication, BasicAuthentication, TokenAuthentication])
#permission_classes([IsAuthenticated])
def test_view(request):
current_user = request.user
print('current_user.auth: ', current_user.is_authenticated)
response = JsonResponse({"received": True})
return response
From my client, I am attempting to call this view in the following way.
const response = await fetch(`${djangoAPIurl}/api/test/test_view/`, {
headers: new Headers({
Authorization: `Bearer ${session.accessToken}`
})
});
The header is constructed correctly, with session.accessToken being the value I got from the api/social/login/google/ call and the request is routed correctly, however, it fails with Forbidden 403 because the user is not authenticated. I have removed the authentication and permission decrators and the request ends up being processed by the view, and there, upon inspection of the user, it is an Anonymous user. I have also tried changing Bearer to Token, to no avail.
Do you have any advice what I might be doing wrong or missing? Have I completely missunderstood how to use the token I get back from api/social/login/google/? All advice is much appreicated!
I think this is because your secret for hashing JWTS on the client side and server side is not same. Next-Auth automatically creates a secret key for hashing jwt's and dj_rest_auth does the same, unless you explicitly tell them both to use the same secret for hashing jwts. I'm a bit late to answer this, but Hope this will help future people😁😁.
I regularly use Tabulator's setData() method. I usually set parameters in the URL args, and have no problems with it. But I now have a complex use case that will be easier to solve if I can put a JSON payload into the request.
I've followed the Tabulator documentation for an advanced configuration.
I've made a series of attempts (putting the JSON in various places, using quotes/double quotes in the JSON, etc) at trying to work out the problem. The Flask server always returns this error:
Failed to decode JSON object: Expecting value: line 1 column 1 (char 0)
What makes me suspect the problem is with Tabulator, not Flask, is because I printed request.__dict__ and couldn't find the JSON in the request. (I.e. that seems to the reason for the error.)
The below example, which triggers the same error, is taken from the Fetch documentation (Tabulator uses the Fetch API).
Is there anything wrong with the below or should I be looking harder at Flask?
const data = { username: 'example' };
var ajaxURL = "/data/results";
var ajaxConfig = {
method:"POST",
headers: {
'Content-Type': 'application/json',
'X-CSRFToken': csrf_token,
},
body: JSON.stringify(data)
};
ResultsTable.setData( ajaxURL, {}, ajaxConfig);
Notes:
I'm using the latest version of Tabulator (4.9).
ResultsTable is set elsewhere in the code and is successfully loading default data when the page loads. The use case kicks in when the user sets their own parameters for the data.
The CSRF token, which is set elsewhere in the code, is there because Flask requires it.
The reason that is failing is that Tabulator will build out its own request body when it builds a request and that will override your config.
In your usage case, you will need to override the build in ajax request promise and add your own function that makes the ajax request and then resolves the data.
You can do this using the ajaxRequestFunc.
Checkout the Ajax Request Documentation for full details
When making a request to a flask route that requires a JWT to access using (#jwt_required decorator on flask-restful resources), I get a 422 UNPROCESSABLE ENTITY with the message: The specified alg value is not allowed.
When logging in and navigating to the (frontend) route that calls the request:
this.axios.get("/jobs").then(res => {
console.log(res.data);
this.jobs = res.data.jobs;
});
in the same go, it works as expected, however on refresh it then shows the 422 error.
I store the token in localstorage and load it into axios headers like so:
const api = {
init: function() {
Vue.use(VueAxios, axios);
Vue.axios.defaults.baseURL = DEV_URL;
},
setHeader: function() {
const token = `Bearer ${getToken()}`;
Vue.axios.defaults.headers.common["Authorization"] = token;
},
};
and call init() and setHeader() in my main.js so I am confused why this is causing an error only after a refresh.
I haven't be able to find any resources on how to remedy the The specified alg value is not allowed error. Any assistance would be appreciated! :)
I ran into same problem when the JWT token was created in my spring boot auth service but resource service was a flask micro service. I tried the following steps to sort it out,
I pasted the token in jwt.io Debugger.
On the right hand side I found the decoded header where the alg value was the following,
{
"alg": "HS512"
}
I put the alg in the app config in the flask resource server as follows,
app.config['JWT_ALGORITHM'] = 'HS512'
After that the error message was gone and I was able to parse information from the decoded token. So you need to find the algorithm by which the token was generated and set the appropriate algorithm in the flask app.config.
This can happen if the token was created using a different algorithm then app.config['JWT_ALGORITHM']
I'm using devise on ruby on rails for authentication. Taking it one step at a time, I have disabled the cookie authentication in order to test retrieving results prior to authentication.
If I go to my browser and navigate to the url that Alamofire is visiting, I get results in JSON format like this :
{"id":250,"name":null,"username":"walker","bio":null,"gender":null,"birth_date":null,"profile_image_url":null}
I'm requesting the alamofire request like this:
Alamofire.request(requestPath, method: .get, parameters: [:], encoding: JSONEncoding.default, headers: [:]).responseJSON { (response) in
if (response.result.isFailure) {
completion(false, "")
} else {
if let result = response.result.value {
completion(true, result)
}
}
}
This is all inside of another method which simply provides with a completion handler as you can see inside of the completion handler of the Alamofire request.
I get an error every single time.
The error says:
responseSerializationFailed : ResponseSerializationFailureReason
What am i doing wrong?
This error indicates that your response is not a JSON formatted data(or something wrong with your API Response), try to use something like post man to check your API response and to make sure every thing is ok before requesting with to swift
I have a very simple form that I've added the uploader to. When I invoke the uploader, django returns
{"detail":"CSRF Failed: CSRF token missing or incorrect."}
This is the uploader:
var ul = new Uploader(
{
label:"Programmed uploader",
multiple:false,
uploadOnSelect:true,
url:Environment.apiRoot + "upload/",
headers:{
"Accept" : "application/json",
"X-CSRFToken" : dojo.cookie("csrftoken")
}
}).placeAt(form);
I created simple "test" button that invokes a function that performs the same post.
new Button({
name:"Cancel2",
//id:"Cancel",
label:"Cancel" ,
placement:"secondary",
onClick:lang.hitch(this,function(event){
this._testpost()
})
}).placeAt(form);
This is the relavent header from the uploader post
Cookie djdt=hide; csrftoken=WwlARc9OUevblKfgNEDU2Ae4eT9z0kos;sessionid=du37rjyam6v69mw0bgctkbw708xlvc5g
This is the _testpost()
_testpost: function (){
xhr.post({
url: Environment.apiRoot + "upload/",
handleAs: "json",
postData: json.stringify(data),
headers: {
"Content-Type": "application/json",
"Accept" : "application/json",
"X-CSRFToken" : dojo.cookie("csrftoken")
},
loadingMessage: "Submitting form..."
}).then(
lang.hitch(this,function(result) {
form = t._f_form;
dojo.destroy(form);
this._float.destroyRecursive();
alert(result['result_text']);
result['message'] = "Update Request Accepted";
}),lang.hitch(this, function(err){
form = t._f_form;
dojo.destroy(form);
this._float.destroyRecursive();
topic.publish("/application/message","An error occurred.");
}));
this is the relevant header from invoking the _testpost function
Cookie djdt=hide; csrftoken=WwlARc9OUevblKfgNEDU2Ae4eT9z0kos;sessionid=du37rjyam6v69mw0bgctkbw708xlvc5g
X-CSRFToken WwlARc9OUevblKfgNEDU2Ae4eT9z0kos
The key difference being that in the _testpost the X-CSRFToken is put into the header, but on the Uploader post, I don't have any means to put in an X-CSRFToken (my headers attribute seems to just be ignored - i tried it to see if I could get this to work)
Is there any way to get additional headers into the Uploader
Unfortunately, dojox.form.Uploader does not allow headers to be added.
There are a couple options. It sounds like you have access to the csrf token and could append it to the url. Another option may be to provide the csrf token as a cookie and it should be sent with XHR and Flash request.
What I have done (and i'm not sure this is correct), within the django view, disabled csrf checking, and then pull the csrf value out of the header and compare it against the csrf value that is kept in the session record on the server.
you may use dojo.aspect to add the headers to the dojox.form.Uploader.
In case you are using HTML5 upload "plugin", that looks like since you have left the default, you may use something like:
aspect.after(ul, "createXhr", function(xhr) {
xhr.setRequestHeader("Accept", "application/json");
xhr.setRequestHeader("X-CSRFToken", dojo.cookie("csrftoken"));
return xhr;
});
Add this just after you create the Uploader. Also remember to require dojo/aspect.
Notice that this is a bit of a hack and prone to breakage if some change happen in dojox.form.Uploader structure (e.g. they update it to use dojo.promise or other fixes). Also it's implied that this works only for HTML5 plugin, but you may extend the code in the same way to cope for other plugins by inspecting ul.uploadType and make the change specific for that plugin.
This solution works up to and including dojo version 1.12. In 2017 the above announced breakage did happen an this does not work anymore with version of dojo from 1.13 and upward.