Ok so I turned on escaping strategy and used in show users comments
function htmlspecialchars_decode() to show their links.
I also used javascript - user must confirm delete action, so now <IMG
src="/profil/users/notaccept/22"> doesn't work. But is it a good
solution to CSRF attacks ?


On 11 Kwi, 10:50, Alexandru-Emil Lupu <[email protected]> wrote:
> Hi!
> You might want to implement a liking system for "unaccepting" friends:
> like:
> <a href="/profil/users/notaccept/22"><IMG src="/profil/users/*images*
> /notaccept/22"></a>
> and also a javascript confirmation ...
> also .. .it would be a good ideea that system to use unique friends id ...
> and also ... unacceping friend may be done via ajax using post.
> and also ... try disable htmlentites and use a BB code or Wiki syntax ...
> would be better.. and painless against user input ...
> Alecs
>
> On Sat, Apr 11, 2009 at 10:47 AM, dziobacz <[email protected]> wrote:
>
> > But I would like to make that users can add links so in settings.yml I
> > have made escaping_strategy:      false.
> > User with id=1 adds comment:
> > <IMG src="/profil/users/notaccept/22">
> > User with id=5 goes to page with <IMG src="/profil/users/notaccept/
> > 22"> and it deletes from database his friend with id=22 :(
> > My application isn't safe :( !! What can I do ? :((((
>
> > On 11 Kwi, 08:38, "[email protected]"
> > <[email protected]> wrote:
> > > I think you misunderstood the concept behind it.
> > > CSRFProtection is used in forms, not in simple links.
>
> > > Michael
>
> > > On 10 Apr., 15:40, dziobacz <[email protected]> wrote:
>
> > > > I have read about csrf protection but I still don't understand
> > > > everything.
>
> > > > I have in settings.yml:
> > > > csrf_secret:       secret12
>
> > > > I have something like that in template:
> > > > User A adds user B to fiends. User B can accept it - then I have link:
> > > > <a href="/profile/users/accept/<?php echo $z->getId() ?>" >accept</a>
> > > > or not accept it - then link:
> > > > <a href="/profile/users/notaccept/<?php echo $z->getId() ?>" >not
> > > > accept</a>
>
> > > > Then I in file actions.class.php take id like that:
> > > > $id = (int)$request->getParameter('accept');
> > > > $id = (int)$request->getParameter('notaccept');
>
> > > > and add or delete row to/from database. Should I in both cases write:
> > > > $request->checkCSRFProtection()  ??
>
>
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