Using LDAP and JDBC Simultaneously

Note: There are related HOWTOs: Changing to the LDAP Security DAO and Changing to the JDBC Security DAO.

Overview

Is it possible to authenticate via LDAP then fetch roles from a relational database? Yes! To accomplish this, make the following changes.

Steps

1. Edit pentaho-spring-beans.xml to use a combination of LDAP and JDBC configuration files.
   pentaho-spring-beans.xml

   <beans>
     <!-- some lines omitted -->
     <import resource="applicationContext-spring-security.xml" />
     <import resource="applicationContext-common-authorization.xml" />
     <import resource="applicationContext-spring-security-ldap.xml" />
     <import resource="applicationContext-pentaho-security-jdbc.xml" />
   </beans>
   

2. Open applicationContext-spring-security-ldap.xml. Replace the populator bean definition with the one below.
   applicationContext-spring-security-ldap.xml

   <bean id="populator" class="org.springframework.security.ldap.populator.UserDetailsServiceLdapAuthoritiesPopulator">
     <constructor-arg index="0">
       <ref bean="userDetailsService" />
     </constructor-arg>
   </bean>
   

3. Staying in the same file, remove the userDetailsService bean. (We're removing it to replace it later with the JDBC-based UserDetailsService implementation: JdbcDaoImpl.)
   applicationContext-spring-security-ldap.xml

   <!-- removed userDetailsService bean -->
   

4. Open applicationContext-pentaho-security-jdbc.xml. Add the following two bean definitions. Both of these bean definitions were copied from applicationContext-spring-security-jdbc.xml. (One is the JDBC-based UserDetailsService implementation; the other is a bean required by that implementation.)
   applicationContext-pentaho-security-jdbc.xml

   <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
     <property name="driverClassName" value="org.hsqldb.jdbcDriver" />
     <property name="url" value="jdbc:hsqldb:hsql://localhost:9002/userdb" />
     <property name="username" value="sa" />
     <property name="password" value="" />
   </bean>
   
   <bean id="userDetailsService" class="org.springframework.security.userdetails.jdbc.JdbcDaoImpl">
     <property name="dataSource">
       <ref local="dataSource" />
     </property>
     <property name="authoritiesByUsernameQuery">
       <value>
         <![CDATA[SELECT username, authority FROM granted_authorities WHERE username = ?]]>
       </value>
     </property>
     <property name="usersByUsernameQuery">
       <value>
         <![CDATA[SELECT username, password, enabled FROM users WHERE username = ?]]>
       </value>
     </property>
   </bean>