Github user khalidhuseynov commented on the issue:
https://github.com/apache/zeppelin/pull/2373
i've just tried to login using the config info from online demo for
oidc-client in https://demo.c2id.com/oidc-client using modified config below
```
oidcConfig = org.pac4j.oidc.config.OidcConfiguration
oidcConfig.discoveryURI = https://demo.c2id.com/oidc-client/cb
oidcConfig.clientId = 000123
oidcConfig.secret = 7wKJNYFaKKg4FxUdi8_R75GGYsiWezvAbcdN1uSumE4
oidcConfig.clientAuthenticationMethodAsString = client_secret_basic
oidcClient = org.pac4j.oidc.client.OidcClient
oidcClient.configuration = $oidcConfig
clients = org.pac4j.core.client.Clients
clients.callbackUrl = http://localhost:8080/api/callback
clients.clients = $oidcClient
requireRoleAdmin =
org.pac4j.core.authorization.authorizer.RequireAnyRoleAuthorizer
#requireRoleAdmin.elements = <your role>
config = org.pac4j.core.config.Config
config.clients = $clients
#config.authorizers = admin:$requireRoleAdmin
pac4jRealm = io.buji.pac4j.realm.Pac4jRealm
pac4jSubjectFactory = io.buji.pac4j.subject.Pac4jSubjectFactory
securityManager.subjectFactory = $pac4jSubjectFactory
oidcSecurityFilter = io.buji.pac4j.filter.SecurityFilter
oidcSecurityFilter.config = $config
oidcSecurityFilter.clients = oidcClient
callbackFilter = io.buji.pac4j.filter.CallbackFilter
callbackFilter.defaultUrl = http://localhost:8080
callbackFilter.config = $config
securityManager.realms = $pac4jRealm
...
/api/callback = callbackFilter
#/** = anon
/** = authc
```
but getting exception
```
ERROR [2017-06-01 14:49:39,711] ({qtp764577347-20}
LoginRestApi.java[postLogin]:111) - Exception in login:
org.apache.shiro.authc.pam.UnsupportedTokenException: Realm
[io.buji.pac4j.realm.Pac4jRealm@734cf9ff] does not support authentication token
[org.apache.shiro.authc.UsernamePasswordToken - alice, rememberMe=false].
Please ensure that the appropriate Realm implementation is configured correctly
or that the realm accepts AuthenticationTokens of this type.
at
org.apache.shiro.authc.pam.ModularRealmAuthenticator.doSingleRealmAuthentication(ModularRealmAuthenticator.java:178)
at
org.apache.shiro.authc.pam.ModularRealmAuthenticator.doAuthenticate(ModularRealmAuthenticator.java:267)
at
org.apache.shiro.authc.AbstractAuthenticator.authenticate(AbstractAuthenticator.java:198)
at
org.apache.shiro.mgt.AuthenticatingSecurityManager.authenticate(AuthenticatingSecurityManager.java:106)
at
org.apache.shiro.mgt.DefaultSecurityManager.login(DefaultSecurityManager.java:270)
at
org.apache.shiro.subject.support.DelegatingSubject.login(DelegatingSubject.java:256)
at org.apache.zeppelin.rest.LoginRestApi.postLogin(LoginRestApi.java:80)
```
please let me know if you can see any apparent misconfiguration
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