ews authentication from liferay portlet

Question

I am developing a Calendar Portlet using ews-java-api v.2 for our Liferay Portal. When the user signed in in liferay, he shouldn't have to sign in again in Calendar portlet. But ExchangeService needs either username/password or securityToken to connect. In liferay I have only the encrypted password(I cannot change it) and it is not useful for ews.

How should I generate the securityToken? Is there any other way to do that?

Answer 1

You can use an user with specific permission for login and use the impersonation for acceding the user events. Configure impersonation

and use in java like this way

ExchangeService exchangeService = new ExchangeService(...)
exchangeService.ImpersonatedUserId = 
                             new ImpersonatedUserId(ConnectingIdType.SmtpAddress, mailBox);