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Overview

Yellowfin's Administration Service allows for integrating Yellowfin with essentially all third-party authentication processes. Primarily an authentication bridge will be used when implementing Yellowfin as a standalone application or when implementing Yellowfin as a tightly integrated application where this is required.

To integrate with a third-party authentication process, a custom bridge needs to be created. This bridge will take a username and password from one system and match the details to a user in the Yellowfin system. Usually the third-party authentication source will provide a username, sometimes with a password and other additional user attributes.

The purpose of the Bridge is to match this username with an existing user in Yellowfin and perform a Single Sign-On (SSO) into Yellowfin as that user. Very rarely there will be a password available from the third-party source. The LOGINUSERNOPASSWORD web service will allow for the Bridge to log in a user using only their Username. Alternatively, LOGINUSER can be used to log the user with a password.

The bridge is not necessarily used to determine whether the user is allowed to log in. The fact that the Bridge receives the username means that the user has already been validated. However, sometimes the Bridge will be responsible for “asking” the third party if the user is valid.

Sometimes there will be a need to auto-create the users if they do not yet exist in Yellowfin. This might require using additional information to create the user, like email address, first and last name, etc. which should be sourced from the third-party authentication source. The Bridge can use the GETUSER or VALIDATEUSER web service function to determine if a user exists in Yellowfin or not and the ADDUSER web service call to create a user. If bulk user creation option is required, ADDUSERS web service function can be called.

Part of the Bridge process may also be to modify the user's Yellowfin role or group membership as part of the login process. If Yellowfin is integrated with a product where access to different content may change, it may be required to update this group membership during the login process. This would require sourcing information from the third-party source about what groups a user should be added to/removed from. The UPDATEUSER web service call will allow a user’s role to be modified and the INCLUDEUSERINGROUP / EXCLUDEUSERFROMGROUP web service calls can be used to add/remove from groups that determine what Yellowfin content they can access.

The Bridge can be implemented in many ways. It could be integrated:

  • as part of Yellowfin itself (as a JSP, Servlet or Filter within the Yellowfin web application);
  • a standalone application (GUI, console or web application) that communicates with the third-party source and Yellowfin;
  • Or part of the third-party application itself.

The best place to implement the bridge will depend on the environment and components involved.

When implementing within the Yellowfin container, the various implementation methods will allow for different functionality. JSPs and Servlets allow for implementing code when the user is directed to a particular URL whereas Filters allow for checking authentication on any URL requested from the Yellowfin system.

Here is an image that describes the basic process of what a Yellowfin Authentication Bridge needs to do:

 

 

Note: If your authentication provider supports SAML, Yellowfin SAML bridge can be used to SSO users.


Single Sign-on Functions

 

 

This service connects to Yellowfin and retrieves a login token for a given user which is defined by user ID (such as an email address or any other ID depending on the Login ID method). When this token is passed with the Yellowfin Login URL, it will disable the login screen for the authenticated users and their session will start immediately.

For example, if admin@yellowfin.com.au is a web service admin user, the request should be this:

AdministrationServiceRequest rsr = new AdministrationServiceRequest();

rsr.setLoginId("admin@yellowfin.com.au");
rsr.setPassword("test");
rsr.setOrgId(1);
rsr.setFunction("LOGINUSER");

 

  • The LOGINUSER function requires the AdministrationPerson object, in which you can define a user to log in. The example below shows this:

    AdministrationPerson ap = new AdministrationPerson();
    
    ap.setUserId("user@yellowfin.com.au");
    ap.setPassword("usertest");
    rsr.setPerson(ap);
  • If the user is a member of multiple client organizations, you can specify a particular organization to log in to. For instance:

    rsr.setOrgRef("org1");   

    Where "org1" refers to the client organization reference ID. If this reference ID is not provided, then the user will be redirected to the Client Org Selection page upon logging in.

 

  • If the user account does not exist in Yellowfin, then you will receive web service error 25: COULD_NOT_AUTHENTICATE_USER.

 

  • The LOGINUSER function also allows for different login session parameters to be specified via the setParameters() method.
    For example, the code below will log the user, user@yellowfin.com.au, into Yellowfin, but the Yellowfin header will not be displayed, and the user will be taken to the timeline page, once the call is performed.

    String[] parameters = new String[] {"ENTRY=TIMELINE","DISABLEHEADER=TRUE"};
    rsr.setParameters(parameters);
    

     

    For more options on similar login session options, click here.

 

  • Once the request is configured, perform the call:

    AdministrationServiceResponse rs = adminService.remoteAdministrationCall(rsr);
  • Then initialize the Administration web service. Click here to learn how to do this. 

 

  • The response will contain the following parameters:

    Response Element

    Data Type

    Description

    StatusCode

    String

    Status of the web service call. Possible values include:

    • SUCCESS
    • FAILURE

    LoginSessionId

    String

    A unique login token. This token is appended to the Login URL to take a user directly into Yellowfin.

 

Redirecting to Yellowfin with the Login Token

Using the token received from the web service call (the contents of AdministrationResponse.LoginSessionId), you can forward the user to the URL:

http://<YELLOWFIN-SERVER>/logon.i4?LoginWebserviceId=<TOKEN>

This URL will bypass the authentication screen in Yellowfin and take the user directly into Yellowfin.

The token has a limited validity period. It must be used within 5 minutes, and once it has been used, it cannot be used again. To make subsequent calls from a third-party application into Yellowfin, you must call the LOGINUSER web service again.

 

Using the token with the JavaScript API

The SSO token can also be used with embedded JavaScript API widgets. The token is added to the scriptlet URL like this:

<script type="text/javascript" src="http://localhost/JsAPI?dashUUID=e9a6ab0a-bcb0-4fe6-9663-4dd33e58f08e&token=<TOKEN>"></script>
 

 

 

Complete Example

You can use the following LOGINUSER example. To try it out, follow these steps;

  1. Copy the below code and save it as ws_admin_singlesignon.jsp. 
  2. Place this file in the root folder, that is Yellowfin/appserver/webapps/ROOT
  3. Adjust host, port, admin user and user to login details according to your environment. 
  4. Run http://<host>:<port>/ws_admin_singlesignon.jsp from your Internet browser.

 

<%            
/*       ws_admin_singlesignon.jsp         */              
%>
<%@ page language="java" contentType="text/html; charset=UTF-8" %>
<%@ page import="com.hof.util.*, java.util.*, java.text.*" %> 
<%@ page import="com.hof.web.form.*" %>
<%@ page import="com.hof.mi.web.service.*" %>
<%
String url = "http://localhost:8080";         //provide your Yellowfin URL

AdministrationServiceService s_adm = new AdministrationServiceServiceLocator("localhost",8080,"/services/AdministrationService", false);        // adjust host and port number


AdministrationServiceSoapBindingStub adminService = (AdministrationServiceSoapBindingStub) s_adm.getAdministrationService();
AdministrationServiceRequest rsr = new AdministrationServiceRequest();

rsr.setLoginId("admin@yellowfin.com.au");          // provide your Yellowfin webservices admin account
rsr.setPassword("test")                            // change to be the password of the account above
rsr.setOrgId(1);
rsr.setFunction("LOGINUSER");

AdministrationPerson ap = new AdministrationPerson();
ap.setUserId("user@yellowfin.com.au");                  // provide existing Yellowfin user to login
ap.setPassword("usertest");                             // password of the user above

rsr.setPerson(ap);

String[] parameters = new String[] {"ENTRY=TIMELINE","DISABLEHEADER=TRUE"};
rsr.setParameters(parameters);

AdministrationServiceResponse rs = adminService.remoteAdministrationCall(rsr);


String token = "";
if ("SUCCESS".equals(rs.getStatusCode()) ) {
               token = rs.getLoginSessionId();
               response.sendRedirect(url + "/logon.i4?LoginWebserviceId=" + token);
} else {
               out.write("Single Sign on Failure");
               return;
}
%>



 

 

 

This service is a drop in replacement for LOGINUSER, but the password for the user being logged in is not required. The user can log in using only their user name.

An extra parameter needs to be added to the Configuration table of the Yellowfin database to enable this functionality:

IpOrg

ConfigTypeCode

ConfigCode

ConfigData

1

SYSTEM

SIMPLE_AUTHENTICATION

TRUE


Note: You may need to restart Yellowfin for the database change to take effect.

You will receive a web service error 26: UNSECURE_LOGIN_NOT_ENABLED if this configuration option is not added to the Yellowfin database.

 

 

 

 

 

 

 

 






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