It is possible to create user and groups in frevvo and use them to control access to the system as well as create workflows. It is also common that the list of users and groups is maintained externally in systems such as Active Directory or Open LDAP. frevvo can leverage your existing users repository.
There are two configuration scenarios when integrating frevvo with LDAP. Each one uses a different Security Manager.
- frevvo integrates with an external LDAP/AD system and is in full control of user authentications. Use the LDAP Security Manager in this situation.
- frevvo is deployed to an existing servlet container that is already handling user authentications through LDAP. Authentication, in this case, is the responsibility of the container. However, frevvo is responsible for runtime authorization and design time querying of user metadata. Use the LDAP Container Security Manager in this situation as that reuses the existing LDAP connector but relies on the container for user authentications.
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Retrieving Custom Attributes from the LDAP Server
Custom attributes can be retrieved for users in a frevvo tenant using the LDAP Security Manager or the LDAP Container Security Manager. When a user is successfully authenticated by the LDAP security manager, frevvo then retrieves the following basic user information from the LDAP server:
Using a business rule, you can populate controls in your form with this information.
There are many attributes available in Active Directory. View this website for a partial list. Multi value attributes are also supported.
You can retrieve additional custom attribute information from the LDAP server using the configuration parameter "com.frevvo.security.ldap.customAttributes" and Business Rules.
Configure Retrievable Attributes
If you want to pull additional information from Active Directory into your form, you must add a context parameter to the <frevvo-home>\tomcat\conf\catalina\localhost\frevvo.xml file. The configuration parameter is "com.frevvo.security.ldap.customAttributes" and the value is a comma separated list of attribute names to be retrieved. Let's use the employee's Middle Initials and Home Phone as an example. The attributes for Middle Initials and Telephone Number are initials and telephoneNumber respectively.
Follow these steps to modify the configuration:
- Stop Live Forms if it is running.
- Navigate to <frevvo-home>\tomcat\conf\catalina\localhost\frevvo.xml.
- Open the file with a text editor.
- Add the parameter shown below to the Active Directory or OpenLDAP sections of the file.
5. Save the file after all your changes are made. Restart frevvo.
Write a rule to populate controls in your form with the firstname, lastname, email address plus the additional attributes specified in the configuration parameter. Notice the middle initials and the telephone number controls in the image are filled with the user information from the LDAP server.
Attributes with more than one value are also supported. For example, The carLicense attribute can return multiple licenses. You can write a rule to populate dropdown options with those options. Make sure the carLicense attribute is configured in the frevvo.xml file and of course, there are multiple carLicense attributes,each one containing a different value for the dropdown options,set up for appropriate users on the LDAP server.
A JSON array string listing multiple car licenses is returned and it can be used in a frevvorule to populate the options of a dropdown control named carLicense.