03 Shibboleth

Owned by Andrew Petro
Last updated: Jul 06, 2010 by Eric DalquistVersion comment
3 min read

Overview

Skipping a lot of detail here is an overview of the steps involved with using Shibboleth with uPortal. The uPortal configuration step is very small and generally trivial. In the list below steps 1 through 4 are covered by the Shibboleth Documentation. Step 5 is the only uPortal specific part and described below.

  1. Install and configure Shibboleth SP - configure SP to pass uid via REMOTE_USER to get it working faster.
  2. Install and configure uPortal - get it running on its own without Shib.
  3. Install and configure Apache httpd server.  Configure httpd with Shib and validate that Shib can protect resource AND pass attributes.  Also configure httpd to work with tomcat (mod_jk).
  4. Configure httpd server to protect uri '/uPortal/Login' 
  5. Configure uPortal authentication - use the RemoteUserSecurityContext for (Shib) authentication

For Shibboleth IdP or httpd server related questions please contact the shibboleth-users list.

Shibbolizing uPortal

Step 1 - Security Context

Configure uPortal to get the username from the REMOTE_USER header.

In uportal-impl/src/main/resources/properties/security.properties add the property:

root.remote=org.jasig.portal.security.provider.RemoteUserSecurityContextFactory

To ensure the Shibbolized uPortal instance has no chance of using anything but Shibboleth for authN, comment out root and other existing root.* and use RemoteUserSecurityContextFactory as root like:

## This is the factory that supplies the concrete authentication class
#root=org.jasig.portal.security.provider.UnionSecurityContextFactory
#root.cas=org.jasig.portal.security.provider.cas.CasFilteredSecurityContextFactory
#root.simple=org.jasig.portal.security.provider.SimpleSecurityContextFactory
root=org.jasig.portal.security.provider.RemoteUserSecurityContextFactory

Step 2 - Person Manager

Configure uPortal to create user's on demand based on the REMOTE_USER header.

In uportal-impl/src/main/resources/properties/contexts/userContext.xml replace SimplePersonManager bean

<bean id="personManager" class="org.jasig.portal.security.provider.SimplePersonManager" />

with the RemoteUserPersonManager bean. Note that the bean id stays the same.

<bean id="personManager" class="org.jasig.portal.security.provider.RemoteUserPersonManager" />

Step 3 - Person Attributes

Configure uPortal to populate user's attributes based on headers from Shibboleth.

In pom.xml update the line:

<person-directory.version>1.5.0-RC3</person-directory.version>

To

<person-directory.version>1.5.0-RC8</person-directory.version>

In uportal-impl/src/main/resources/properties/contexts/personDirectoryContext.xml add the following beans

<!-- 
 | Servlet filter that creates an attribute for the serverName
 +-->
<bean id="requestAttributeSourceFilter" class="org.jasig.services.persondir.support.web.RequestAttributeSourceFilter">
    <property name="additionalDescriptors" ref="requestAdditionalDescriptors" />
    <property name="usernameAttribute" value="remoteUser" />
    <property name="remoteUserAttribute" value="remoteUser" />
    <property name="serverNameAttribute" value="serverName" />
    <property name="processingPosition" value="BOTH" />
    <property name="headerAttributeMapping">
        <map>
            <!-- MODIFY THESE MAPPINGS TO EXPOSE HEADERS FROM SHIB AS USER ATTRIBUTES -->
            <entry key="cn">
                <list>
                    <value>cn</value>
                    <value>displayName</value>
                </list>
            </entry>
            <entry key="givenName" value="givenName" />
        </map>
    </property>
</bean>

<!-- 
 | Session-scoped descriptors object. One of these will exist for each user in their session. It will store the
 | attributes from the reques set by the requestAttributeSourceFilter
 +-->
<bean id="requestAdditionalDescriptors" class="org.jasig.services.persondir.support.MediatingAdditionalDescriptors">
    <property name="delegateDescriptors">
        <list>
            <bean class="org.jasig.services.persondir.support.AdditionalDescriptors" scope="globalSession">
                <aop:scoped-proxy />
            </bean>
            <bean class="org.jasig.services.persondir.support.AdditionalDescriptors" scope="request">
                <aop:scoped-proxy />
            </bean>
        </list>
    </property>
</bean>

In uportal-war/src/main/webapp/WEB-INF/web.xml add the following servlet filter

<filter>
    <filter-name>requestAttributeSourceFilter</filter-name>
    <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>

<filter-mapping>
    <filter-name>requestAttributeSourceFilter</filter-name>
    <url-pattern>/Login</url-pattern>
</filter-mapping>

This step is only needed if you're using the uPortal rendered login link.

Modify uportal-war/src/main/resources/org/jasig/portal/channels/CLogin/html.xsl to change the Login and Logout UIs to something appropriate to your institution.

References