Configuring a Read-only LDAP User Store

When you configure a product to read users/roles from your company LDAP in read-only mode, it does not write any data into the LDAP.

1. Comment out the following user store which is enabled by default in the <PRODUCT_HOME>/repository/conf/user-mgt.xml file.
   <UserStoreManager class="org.wso2.carbon.user.core.ldap.ReadWriteLDAPUserStoreManager"> 

2. Given below is a sample for the LDAP user store. This configuration is found in the <PRODUCT_HOME>/repository/conf/user-mgt.xml file, however, you need to uncomment them and make the appropriate adjustments. Also ensure that you comment out the configurations for other user stores which you are not using. 
   

   <UserManager>
    <Realm>
     ...
      <UserStoreManager class="org.wso2.carbon.user.core.ldap.ReadOnlyLDAPUserStoreManager"> 
               <Property name="TenantManager">org.wso2.carbon.user.core.tenant.CommonHybridLDAPTenantManager</Property> 
               <Property name="ReadOnly">true</Property> 
               <Property name="Disabled">false</Property> 
               <Property name="MaxUserNameListLength">100</Property> 
               <Property name="ConnectionURL">ldap://localhost:10389&lt;/Property> 
               <Property name="ConnectionName">uid=admin,ou=system</Property> 
               <Property name="ConnectionPassword">admin</Property> 
               <Property name="PasswordHashMethod">PLAIN_TEXT</Property> 
               <Property name="UserSearchBase">ou=system</Property> 
               <Property name="UserNameListFilter">(objectClass=person)</Property> 
               <Property name="UserNameSearchFilter">(&amp;(objectClass=person)(uid=?))</Property> 
               <Property name="UserNameAttribute">uid</Property> 
               <Property name="ReadGroups">true</Property> 
               <Property name="GroupSearchBase">ou=system</Property> 
               <Property name="GroupNameListFilter">(objectClass=groupOfNames)</Property> 
               <Property name="GroupNameSearchFilter">(&amp;(objectClass=groupOfNames)(cn=?))</Property> 
               <Property name="GroupNameAttribute">cn</Property> 
               <Property name="SharedGroupNameAttribute">cn</Property> 
               <Property name="SharedGroupSearchBase">ou=SharedGroups,dc=wso2,dc=org</Property> 
               <Property name="SharedGroupNameListFilter">(objectClass=groupOfNames)</Property> 
               <Property name="SharedTenantNameListFilter">(objectClass=organizationalUnit)</Property> 
               <Property name="SharedTenantNameAttribute">ou</Property> 
               <Property name="SharedTenantObjectClass">organizationalUnit</Property> 
               <Property name="MembershipAttribute">member</Property> 
               <Property name="UserRolesCacheEnabled">true</Property> 
               <Property name="ReplaceEscapeCharactersAtUserLogin">true</Property> 
               <Property name="MaxRoleNameListLength">100</Property> 
               <Property name="MaxUserNameListLength">100</Property> 
               <Property name="SCIMEnabled">false</Property> 
           </UserStoreManager>
    </Realm>
   </UserManager>

    

3. Update the connection details to match your user store. For example:

   <Property name="ConnectionURL">ldap://localhost:10389</Property>

4. Obtain a user who has permission to read all users/attributes and perform searches on the user store from your LDAP/Active Directory administrator. For example, if the privileged user is "AdminLDAP" and the password is "2010#Avrudu", update the following sections of the realm configuration as follows:

   <Property name="ConnectionName">uid=AdminLDAP,ou=system</Property>
   <Property name="ConnectionPassword">2010#Avrudu</Property>

5. Update <Property name="UserSearchBase"> with the directory name where the users are stored. When LDAP searches for users, it will start from this location of the directory.

   <Property name="UserSearchBase">ou=system</Property> 

6. Set the attribute to use as the username, typically either cn or uid for LDAP. Ideally, <Property name="UserNameAttribute"> and <Property name="UserNameSearchFilter"> should refer to the same attribute. If you are not sure what attribute is available in your user store, check with your LDAP/Active Directory administrator. 

   For example:

   <Property name="UserNameAttribute">uid</Property>

7. For the UserName, set the same username you set for the uid in the ConnectionName configuration in step 4 (you do not have to update the password element; leave it as it is).

   <AdminUser>
   	<UserName>AdminLDAP</UserName>
   	<Password>XXXXXX</Password>
   </AdminUser>

8. Optionally, configure the realm to read roles from the user store by reading the user/role mapping based on a membership (user list) or backlink attribute. The following code snippet represents reading roles based on a membership attribute. This is used by the ApacheDirectory server and OpenLDAP.
   

   <Property name="ReadLDAPGroups">false</Property>
   <Property name="GroupSearchBase">ou=system</Property>
   <Property name="GroupSearchFilter">(objectClass=groupOfNames)</Property>
   <Property name="GroupNameAttribute">cn</Property>
   <Property name="MembershipAttribute">member</Property>

    

9. Start your server and try to log in as the admin user you specified. The password is the admin user's password in the LDAP server.