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Introduction

The following is a tutorial on how to configure midPoint with Gluu in order to perform SSO using OpenID Connect.

In this example we are using:

  • Ubuntu Xenial
  • midPoint 3.5
  • Tomcat 8
  • Apache 2
  • mod_auth_openidc 2.2.x

 

Contribution

First version of the Howto document contributed by Dario Tongue

The setup 

 

Firstly please make sure that you have Apache Tomcat and midPoint installed and working properly. Also install Apache with rewrite, proxy and proxy_http modules and configure them to work with Apache Tomcat and midPoint. There steps can be found in this previous how to. 

Next configure Apache with SSL. And install the mod_auth_openidc module onto Apache and configure it properly so it will work with your OpenID Connect Provider. For more details follow the following how to.

The claim user_name of our OpenID Connect Provider (Gluu in our case) matches midPoint user "name". This also means that one of the scopes of your client mod_auth_openidc defined on your OpenID Connect Provider contains the claim user_name.

Apache configuration


#OpenID Connect
OIDCProviderMetadataURL https://idp.mydomain.com/.well-known/openid-configuration

OIDCClientID (client-id-you-got-back-when-you-added-the-client)
OIDCClientSecret (your-client-secret)
OIDCRedirectURI https://mydomain/midpoint/redirect_uri
OIDCResponseType code
OIDCScope "openid profile email user_name"
OIDCSSLValidateServer Off
OIDCCryptoPassphrase (a-random-seed-value)
OIDCPassClaimsAs both
OIDCClaimPrefix USERINFO_
OIDCPassIDTokenAs payload
<Location ~ "/midpoint*">
    Require valid-user
    AuthType openid-connect
</Location>
...
ProxyRequests           Off
ProxyPreserveHost       On
ProxyPass               /midpoint       http://localhost:8080/midpoint
ProxyPassReverse        /midpoint       http://localhost:8080/midpoint
 

 

After applying the configuration restart apache:

sudo service apache2 restart

Midpoint configuration

Edit the ctx-web-security.xml located at /var/lib/tomcat8/webapps/midpoint/WEB-INF

Uncomment the following so that reads: 

<!--For SSO integration use the following: -->
<custom-filter position="PRE_AUTH_FILTER"
ref="requestHeaderAuthenticationFilter" />


Edit the following value "principalRequestHeader" in the bean "requestHeaderAuthenticationFilter" so that it reads:

<!-- Following bean is used with pre-authentication based on HTTP headers (e.g. for SSO integration) -->
...
<beans:property name="principalRequestHeader" value="USERINFO_user_name"/>
...


Edit the following value "defaultTargetUrl" in the bean "logoutHandler" so that it reads :

<beans:bean id="logoutHandler" class="com.evolveum.midpoint.web.security.AuditedLogoutHandler">
        
<beans:property name="defaultTargetUrl" value=" https://mydomain/midpoint/redirect_uri?logout=https%3A%2F%2Flocalhost%2F(a logout page)
"/>
</beans:bean>


Restart tomcat:

sudo service tomcat8 restart


External links


 

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