Re: [Mediawiki-l] userCan Hook

Hi,

the logic of processing your hook function is:

- if your function returns false other hooks will not be processed (those with a greater index in $wgHooks['userCan']) and the result will be found in $result (passed by reference), default logic (standard permissions like createtalk, move,...) is not used - if your function returns true hooks with a greater index will be processed; if there are no more hooks or all of them return true then the default logic is used

$result can be only true or false - the purpose of this hook is to determine if a user can perform an action. It is not meant for generating any output. This hook is called before constructing a page. If $result is false, Wiki.php calls $wgOut->loginToUse() on its own.

What is more important, you never know what this hook was called for: to display a page or to see if 'edit' or 'move' tabs should be available to a user.

So you must not print any output in your hook function.

So it goes, as far as I can see. -- Petr

http://meta.wikimedia.org/wiki/NamespacePermissions_Extension

2006/7/19, Borut Tomažin debijan@gmail.com:

Hello,

I' want to user userCan hook on every page, so I made an extension which then calls this hook. I don't really know much about this hook so I need some information.

How can I prevent access to users who are not logged in?

I tried with code bellow, but I get an empty page (wiki doesn't show):

# If user is logged in

if( !$wgUser->isLoggedIn() ) {

$wgOut->loginToUse();

            return;

}

How is that with $action parameter? I only find 'edit', 'move'. What about 'read' word, does it exist.

Everything must be done with this extension cos I don't want to change mediaWiki files.

function efAdminPagesRestrictionsHook() {

global $wgHooks;

$wgHooks['userCan'][] = 'RestrictHookUserCan';

}

function RestrictHookUserCan( &$title, &$user, $action, &$result ) {

            if( $action == 'edit' ) {

                           #code

            }



            if( $action == 'read' ) {

                            #code

            }



            if( $action == 'create' ) {

                            #code

            }

}

Lp

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