> Thanks Kiuma,
>
> Being that when a new user is added to the system, the system should
> create a default role/set of perms, I don't think relying on web.xml is
> workable. It seems like a db table (mapped via hibernate) would be the
> best way, but as I'm just migrating to tapestry/java web development,
> any opinions are welcome.
>
> chris
Yes we store user information in a Person table and hold on to the
currently logged in user inside the Visit object (we use a custom class
called "Session"). The Person table has a relationship to the role table
which has a relationship with the permissions table. We store permission
check methods inside an "Authority" class, gettable from the Session. So
you could have:
child page class:
@Override
public void checkPerms() throws PermissionException {
if (!getSession().getAuthority().canAccessSomethingReport()) {
throw new PermissionException("User is not allowed to access this
page.");
}
}
parent page class:
public abstract checkPerms() throws PermissionException;
public void pageValidate(PageEvent event) {
try {
checkPerms();
}
catch (PermissionException e) {
throw new PageRedirectException("Forbidden");
}
}
It seems to work for us, but there may be better ways of doing it. I've
never used JAAS either.
Damien
>
> Andrea Chiumenti wrote:
>> yes for every Q!
>>
>> "It looks like this method checks against a role list in the deplyment
>> descriptor" -> JAAS (if u mean web.xml)
>>
>> Ciao,
>> kiuma
>>
>> On 7/17/07, Chris Lewis <[EMAIL PROTECTED]> wrote:
>>>
>>> So all pages that are restricted must extend a page that implements the
>>> security checks perms and handles enforcement, correct?
>>> Regarding jaas, I've not used it before, but the
>>> HttpServletRequest#isUserInRole method uses it? It looks like this
>>> method checks against a role list in the deplyment descriptor.
>>>
>>> Thanks tons for your input!
>>>
>>> chris
>>>
>>> Andrea Chiumenti wrote:
>>> > do u want jaas ?
>>> > if so:
>>> > <inject property="request" object="service:
>>> > tapestry.globals.HttpServletRequest"/>
>>> > in ur code:
>>> >
>>> > getRequest().isUserInRole('somerole');
>>> >
>>> > Ciao,
>>> > kiuma
>>> >
>>> > On 7/17/07, Damien Uern <[EMAIL PROTECTED]> wrote:
>>> >>
>>> >> Chris Lewis wrote:
>>> >> > Hello all,
>>> >> >
>>> >> > I am seeking information/code samples on how to implement user
>>> access
>>> >> > control in Tapestry (4.1.2). Specifically, restricting pages to
>>> >> > authenticated users. I assume that all restricted pages would
>>> have to
>>> >> > make a call to an authentication system, checking if the user is
>>> >> logged
>>> >> > in and if they have access to the page. If a user tries to access
>>> a
>>> >> page
>>> >> > they are not authorized to view, then "something" should happen.
>>> This
>>> >> > something may just be a message or an error page - the important
>>> >> part is
>>> >> > how to implement this across pages or a group of pages. Thanks for
>>> >> your
>>> >> > input!
>>> >> >
>>> >> > chris
>>> >>
>>> >> Piece of cake, you can create a page that handles authentication
>>> >> checking as follows:
>>> >>
>>> >> public abstract class AbstractSecurePage extends AbstractPage
>>> implements
>>> >> PageValidateListener {
>>> >>
>>> >> InjectState("visit")
>>> >> public abstract Session getSession();
>>> >>
>>> >> public void pageValidate(PageEvent event) {
>>> >> //check user permissions here e.g.:
>>> >>
>>> >> if (!getSession().isUserLoggedIn()) {
>>> >> throw new PageRedirectException("LoginPage");
>>> >> }
>>> >> }
>>> >>
>>> >>
>>> >> }
>>> >>
>>> >> Hope that helps :D
>>> >>
>>> >> Damien
>>> >> --
>>> >>
>>> >>
>>> >> Damien Uern
>>> >> Online Applications Developer
>>> >> Synect Online Solutions
>>> >>
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>>> >>
>>> >>
>>> >
>>>
>>>
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>>>
>>
>
>
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