Monday, September 30, 2013

Configure WSO2 Identity Server SAML2 IDP with Oracle Weblogic as Service Provider

This blog post explains How to configure WSO2 Identity Server as SAML2 IDP and Oracle Weblogic as Service Provider.

You might already know that there are two parties engaged in a single sign on system.
  1. Identity Providers (IDP)
  2. Service Providers (SP)
So there should be a mechanism for the identity provider to know that this is an authentic service provider and at the same time service provider needs to know that authentication response came from a trusted identity provider. This secure transaction between IDP and SP is ensured by sharing metadata files of the two parties.

First let's see How can we configure Weblogic as a Service Provider.

First you need to download and install Weblogic server. You can download it from here and follow the README.txt for the installation. 

NOTE: Make sure you configure a new domain if you do not have one already.

Start a browser and log in to Oracle weblogic server administration console at http://localhost:7001/console

We will be using appB as the sample test application which you can download from here

Deploy appB in the Weblogic server. 
  1. Go to Deployments under <mydomain> and click install.
  2. Click upload your file(s) and browse appB.
  3. Keep all the default options and finish deployment.
Create a user in security realms.
  1. Go to Security Realms --> myrealm
  2. Select Users and Groups tab and Add a New user. (If you are using above appB, create your user as ssouser, because in weblogic.xml file of appB <principal-name> is defined as ssouser.)
Create SAML2 Identity Asserter.
  1. Go to Security Realms --> myrealm
  2. Providers tab --> Authentication tab and select New.
  3. Create an Identity Asserter choosing the type as SAML2IdentityAsserter
  4. Click on the just created SAML2IdentityAsserter and select Management tab. (You need to restart the admin server before this step to get the changes affected.)

  5. Click on New and select New Web Single Sign-On Identity Provider Partner.
  6. Browse and give the metadata file of WSO2 Identity Server. (NOTE : At the moment with IS 4.5.0 , it is not possible to auto generate the metadata file. The below given metadata file is one I created manually following the spec. )
  7. Click on the just created Identity Provider Partner and fill the details, tick the options as below and Click Save.
  8. Verify whether your metadata file has parsed correctly by navigating to Single Sign-On Signing Certificate tab and Single Sign-On Service Endpoints tab.
Configure at server level.
  1. Go to Environment --> Servers and Click on myserver(admin).
  2. Tick the SSL Listen Port Enabled option and Save.
NOTE: We will be using the demo Keystore and if you need you can have your own custom keystore.

SAML2 General Tab configurations.
  1. Go to Federation Services tab --> SAML 2.0 General tab. 
  2. Fill the fields with relevant information as shown below and Save.
SAML2 Service Provider Tab configurations.
  1. Go to Federation Services tab --> SAML 2.0 Service Provider tab.
  2. Enable it and Save.
Publish Metadata. (Incase your IDP requires a metadata file from Weblogic server.)
  1. Go back to SAML2 General tab and Click on Publish Meta Data.
  2. Provide a location to save the Weblogic metadata file.
Create SAML Authentication Provider.
  1. Go to Security Realms --> myrealm
  2. Providers tab --> Authentication tab and select New.
  3. Create SAML Authenticator choosing the type as SAMLAuthenticator
  4. Click on the just created SAMLAuthenticator.
  5. Go to Configuration tab --> Common tab and select Control Flag as Sufficient.

Go to DefaultAuthenticator and select Control Flag as Sufficient as well.

Now we have done with configuring Weblogic server as the service provider.

Let's have a look how can we configure WSO2 IS to serve as the Identity provider.

Start WSO2 Identity server (tested in IS 4.5.0) and login as admin.

Create the same user you created in Weblogic server in Identity Server.
  1. Go to Configure tab and click on Users.
  2. Click on Add New User and add the same user.
  3. Give Login permission to that user.

Register new Service Provider.
  1. Go to Main tab and select SAML SSO under Manage.
  2. Click on Register New Service Provider.
  3. Fill the data as below and click Register.
Now we have done with configuring both IDP and SP and it's the time to test the SAML2 Application.

Restart the weblogic server + WSO2 IS and go to http://localhost:7001/appB/admin/services.jsp  and you will be redirected to WSO2 Identity server SAML sso page.

Log in with the created user ( in our case ssouser )

If you see the below page, Congratulations !!! You have configured WSO2 IS as SAML2 IDP and Weblogic as SP.

  • My thanks goes to Prabath and Dulanja at WSO2.
  • Gilles for this excellent blog post.