Your code looks fine to me. There is notmagic withXHtml.link just that
when you click the link on server-side your function gets called
before the /logout page gets rendered.
Can you add a function to LiftRules.onEndServicing ?
LiftRules.onEndServicing.append {
case (req, Full(resp)) =>
val cookies = resp.toResponse.cookies
// trace the cookies
case _ =>
}
Br's,
Marius
On Aug 14, 8:20 pm, Richard Dallaway <dalla...@gmail.com> wrote:
> I'm seeing some odd behaviour with a cookie I'm setting not being
> removed. I'm unsure which phase of my code is broken or how deep my
> misunderstandings are here... so I'm looking for some clues.
>
> I'm setting a "keep me logged in" cookie for users of my application.
> That works fine using...
>
> val c = HTTPCookie(COOKIE_NAME,
> encode(user)).setMaxAge(three_months_as_seconds)
> S.addCookie(c)
>
> The encode(user) is, when all is said and done, returning the user PK
> as the cookie value.
>
> I'm not using ProtoUser, I'm using the scheme outlined
> inhttp://groups.google.com/group/liftweb/msg/85a8e790d5efec26
>
> That is, I have...
>
> object LoginContext {
> object userId extends SessionVar[Box[Long]](KeepMeLoggedIn.findUserId)
> // etc...
>
> }
>
> ...and the findUserId function tries to decode the cookie and find a
> matching user:
>
> def findUserId:Box[Long] = for {
> cookie <- S.findCookie(COOKIE_NAME);
> cookie_value <- cookie.value;
> (id, salt) <- decode(cookie_value);
> u <- User.find(By(User.id, id),By(User.salt,salt))
> } yield {
> println(u)
> id
> }
>
> And that's all working for me.
>
> The problem comes when the user clicks the logout link, and I want to
> remove this cookie.
>
> The logout link is:
>
> SHtml.link("/logout", LoginContext.logout, <span>Logout</span> )
>
> ... and LoginContext.logout is
>
> KeepMeLoggedIn.removeCookie()
> // the above is just: S.deleteCookie(COOKIE_NAME)
> userId.remove()
> currentUser.remove()
> S.request.foreach(_.request.session.terminate)
>
> And for completeness, my /logout page is a redirect to the home page:
>
> Menu(Loc("logout", List("logout") -> false, "Logout", Hidden, If(
> ()=>false, ()=>RedirectResponse("/index")) ))
>
> What I'm seeing is:
> - user clicks logout
> - logout function called, and Jetty tells me /logout took N
> milliseconds to render
> - then I'm seeing activity in the findUserId function, a result is
> found, and the user is logged back in again.
> - then Jetty tells me /index took N milliseconds to render.
>
> When I dig into HTTP headers, I'm not seeing the cookie value being
> set in the response header (which I believe is required to remove it).
>
> I'm guessing my confusion is perhaps over how the SHtml.link magic works?
>
> Any suggestions of where I might poke around next?
>
> I'm using 1.1-SNAPSHOT (updated a few hours ago).
>
> Thank you
> Richard
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