I'm developping a web application based on a Tomcat server with LDAP authentication. I would like to know if there is a way to "pass" this authentication token to sharepoint 2013, so that when a user click on an external link (eg. http://mysharepointsite.com/library/1/file1.xls), the file opens in the excel web app without asking for credentials.
Is it possible ?
The web application runs on an intranet and will be accessed from a smartphone. The user won't be logged on a domain.