[Building Sakai] question about admin privilege

[Nuno Fernandes]

Hi Hai Vo,

Are you trying to give admin privilege to a user on UI, or do you wish to
perform an admin operation triggered by an user who don't have such
permission (eg, adding users to a site after an user (with access role)
clicking on something on a tool page)?

For the second case (done in code), you could probably use something like:

    AdminExecution exec = new AdminExecution() {
        @Override
        public Object execution() throws Exception {
            return performSakaiAdminOpAndReturnString();
        }
    };
    try{
        return (String) exec.execute();
    }catch(Exception e){
        log.error("Error while executing admin operation", e);
        return null;
    }

where, *AdminExecution* is an abstract class:

abstract class AdminExecution {
 public AdminExecution() {};
  public abstract Object execution() throws Exception;
  public Object execute() throws Exception {
 Object returnObject = null;
 Session sakaiSession = sessionManager.getCurrentSession();
 String currentUserId = sakaiSession.getUserId();
 String currentUserEid = sakaiSession.getUserEid();
 if(!"admin".equals(currentUserId)) {
 // current user not admin
 try {
 sakaiSession.setUserId("admin");
 sakaiSession.setUserEid("admin");
 authGroupService.refreshUser("admin");
  returnObject = execution();
 } catch (Exception e) {
 log.error("Error occurred while executing as Sakai Administrator", e);
 throw e;
 } finally {
 sakaiSession.setUserId(currentUserId);
 sakaiSession.setUserEid(currentUserEid);
 authGroupService.refreshUser(currentUserId);
 }
  }else{
 // current user is admin
 try {
 returnObject = execution();
 } catch (Exception e) {
 log.error("Error occurred while executing as Sakai Administrator", e);
 throw e;
 }
 }
 return returnObject;
 }
 }

Hope it helps,
Nuno

On Fri, Jan 15, 2010 at 8:48 AM, Hai Vo Thanh <v0thanhhai at yahoo.com> wrote:

> Dear all,
> is there any method that can set a user have admin privilege temporally?
> Thanks.
> -----------
> Hai Vo
>
>
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-- 
Nuno Fernandes

Profile    | http://facebook.com/nfgrilo | http://linkedin.com/in/nfgrilo
Web      | http://codingwithcoffee.com | http://twitter.com/nfgrilo
Work     | Analyst/Programmer @ UFP-UV [http://elearning.ufp.pt]
             | Analyst/Programmer @ Sakai Foundation [
http://sakaiproject.org]
             | Sakai Fellow 2008 @ Sakai Foundation [
http://confluence.sakaiproject.org//x/6oCTAQ]
Address | Universidade Fernando Pessoa  [http://www.ufp.pt]
             | Praça 9 de Abril, 349    | 4249-004 Porto
             | tel: + 351 22 507 13 00 | fax: + 351 22 550 82 69
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