wso2 password grant how to verify token - wso2

I am using WSO2 access Grant for securing a web application.when the user logs in with right credential, I generate the token successful by invoking /oauth2/token service. I store this at the client side and when user invokes the next set of APIs, user hits my API with this token. How can validate the token now ?how can I validate the token to check the scope ? Which serviceI can use for validating the token and user is passing the right token associated with him??

You can use OAuth Introspection Endpoint[1] to validate the token,scope
[1] https://docs.wso2.com/display/IS530/Invoke+the+OAuth+Introspection+Endpoint

Related

How to implement refresh token in django-oauth-toolkit? I'm able to get access_token but the refresh token isn't coming with it

I'm using django-oauth-toolkit with djangorestframework where our partner user will register their application and get application credentials (client id and client secret) which then used to get access token that can be used further to get our server resources. Upto now I'm able to convert those form based application registration process and other apis through rest. But while I hit for access_token only access token with expire are coming as response. Refresh token also supposed to come along the access token but it's not. What I'm missing here...
Below is the sample api response for access_token
And the oauth2 settings
FYI: I'm using Client type as "Confidential" and Authorization grant type as "Client Credentials"
Findings: This may be helpful for others
There is no need for refresh token for grant type client credentials.
Further descriptions RFC doc ; grant type client credentials

Getting access token from OKTA in PKCE flow without user interaction

We have REST Web API written in .NET CORE, which are used on REACT SPA, we are using OKTA with PKCE.
For our API(s) we have end to end test cases written using postman/newman, the API(s) depend on JWT access token for finding user details.
How can I get access token from OKTA for PKCE flow without user interaction?
I followed this for getting access token but even this one throws a browser window for username/password.
https://developer.okta.com/docs/guides/implement-oauth-for-okta/request-access-token/
Is there a way I can pass username and password in the payload and get access token back?
In essence I am after a flow which lets me fetch access token using resource owner username and password on PKCE flow.
It seems with SPA configuration it isn't possible as per OAuth specifications.
Had to create a native app with PKCE and used "Get Access Token with Resource Owner Password Credentials" API in the postman collection available on OKTA

WSO2 Federated IDP RefreshToken with invalid username

community.
I'm using WSO2 IS 5.7.0 to integrate an Angular app with an external IDP.
The external IDP is configured with SAML2 and the service provider Inbound Authentication is set with Oauth/OpenID.
The service provider uses Federated Authentication to comunicate with the IDP.
The user uid from the IDP is matched with the claim userid, so when I ask for an oauth token, I get the correct scopes (matching a local user with roles configured) to use the token with WSO2 AM. This is working well whe I get the initial oauth token using code grant.
If I introspect this token, I can verify the token belongs to the username XXXXXXXX and the scopes are the ones to consume an API on WSO2 AM, based on the roles associated to the local user XXXXXXXX.
The problem is when the refresh token is used to get a new access token after expiration. The new access token comes with the same scopes, but I cannot consume the same API I was consuming with the first token. I get a 403 Forbidden on every call and the AM log shows:
WARN - APIAuthenticationHandler API authentication failure due to Invalid Credentials
(The first WARN appears only once)
WARN - APIAuthenticationHandler API authentication failure due to The access token does not allow you to access the requested resource
(this WARN appears on the subsequent calls)
If I introspect the receibed token, I can see the same scopes as the original access token, but the username is different:
FEDERATED/XXXXXXXX#carbon.super.
I think this username change on the token information leads to the 403 error.
The problem is worst if I activate the Service Provider option "Use tenant domain in local subject identifier" on the Local & Outbound Authentication Configuration. In this case, every time I ask for a new token with refresh token, the tenant is appended to the username on an infinite loop:
XXXXXXXX#carbon.super#carbon.super#carbon.super#carbon.super
On every token I get, the introspect shows me another #carbon.super is appended to the username of the actual token. In this case, the FEDERATED/ is not always present on the username.
I expect the username associated to the refreshtoken to be equal to the one on the first access token.
Is there a configuration to solve this or this is a bug? is resolved on new releases of WSO2 IS?
(sorry for my english)
Thanks!
Similar issue is reported[1] and fixed with PR[2].
[1] https://github.com/wso2/product-is/issues/4472
[2] https://github.com/wso2-extensions/identity-inbound-auth-oauth/pull/1022
If you don't have a WSO2 subscription, upgrading to the 5.8.0 will resolve the issue.

Is there a way to get JWT for WSO2 Identity Server password grant flow in a single call?

Is there a way to generate JWT token directly from WSO2 identity server for a OAuth 2.0 resource owner flow (password grant)? Currently the identity server gives back a access token which has to be sent to validation service to get back back a JWT Token .
Also an observation that the JWT Token comes back with the '/' character escaped.

Get username from oAuth2 access token API Manager

The use case occurs once user is authenticated and obtain an oAuth2 access token from Wso2 API Manager and we want to obtain username again from this access token.
To obtain access token I've followed normal steps published on: [API Manager] (http://docs.wso2.org/display/AM160/Token+API#TokenAPI-GeneratingaccesstokenswithusercredentialspasswordgranttypeGenerating)
Does WSO2 AM provide any REST method to solve it?
Yes.. There would be two ways that you can obtain user name
APIM would return the user name with the Access token. Here user name would be embedded with the access token. You can find more details from here
You can obtain the user name and user's attribute during access token verification process. Once access token is verified successfully, It would return back with JWT token which contains user's attributes. Then you can extract use name from JWT. You find more details on here. Basically inside the APIM, you can extract JWT token in transport header. But, if you want to retrieve the JWT token for the use of your application, you can send the access token to "OAuth2TokenValidationService" service and validate it and then it return back with JWT. (But "OAuth2TokenValidationService" is a web service.). You can use web service client to invoke this service (such as SOAPUI)