code: public void addUserToRole(String user, String role) throws CmsException {
  
          OpenCms.getRoleManager().addUserToRole(m_cms, CmsRole.valueOfRoleName(role), user);
      }
docs: Add the user to the given role.<p>
  
  @param user name of the user
  @param role name of the role, for example 'EDITOR'
  
  @throws CmsException if something goes wrong