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Hooks.php
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Hooks.php
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<?php
namespace MediaWiki\Extension\DismissableSiteNotice;
use MediaWiki\Hook\SiteNoticeAfterHook;
use MediaWiki\Html\Html;
use MediaWiki\Parser\Sanitizer;
use Skin;
class Hooks implements SiteNoticeAfterHook {
/**
* @param string &$notice
* @param Skin $skin
* @suppress SecurityCheck-DoubleEscaped
*/
public function onSiteNoticeAfter( &$notice, $skin ) {
global $wgMajorSiteNoticeID, $wgDismissableSiteNoticeForAnons;
if ( method_exists( $skin, 'getVersion' ) ) {
// does the skin support versioning and if so does it provide dismissable site notices?
if ( $skin->getVersion() === 2 ) {
return;
}
}
if ( trim( Sanitizer::removeHTMLcomments( $notice ) ) === '' ) {
return;
}
// Dismissal for anons is configurable
if ( $wgDismissableSiteNoticeForAnons || $skin->getUser()->isRegistered() ) {
// Cookie value consists of two parts
$major = (int)$wgMajorSiteNoticeID;
$minor = (int)$skin->msg( 'sitenotice_id' )->inContentLanguage()->text();
$out = $skin->getOutput();
$out->addModuleStyles( 'ext.dismissableSiteNotice.styles' );
$out->addModules( 'ext.dismissableSiteNotice' );
$out->addJsConfigVars( 'wgSiteNoticeId', "$major.$minor" );
$notice = Html::rawElement( 'div', [ 'class' => 'mw-dismissable-notice' ],
Html::rawElement( 'div', [ 'class' => 'mw-dismissable-notice-close' ],
$skin->msg( 'sitenotice_close-brackets' )
->rawParams(
Html::element(
'a',
[ 'tabindex' => '0', 'role' => 'button' ],
$skin->msg( 'sitenotice_close' )->text()
)
)
->escaped()
) .
Html::rawElement( 'div', [ 'class' => 'mw-dismissable-notice-body' ], $notice )
);
}
if ( $skin->getUser()->isAnon() ) {
// If there's no nonce (false), pass null to Html::inlineScript
$nonce = $skin->getOutput()->getCSP()->getNonce() ?: null;
// Hide the sitenotice from search engines (see bug T11209 comment 4)
// NOTE: Is this actually effective?
// NOTE: Avoid document.write (T125323)
// NOTE: Must be compatible with JavaScript in ancient Grade C browsers.
$jsWrapped =
'<div id="mw-dismissablenotice-anonplace"></div>' .
Html::inlineScript(
'(function(){' .
'var node=document.getElementById("mw-dismissablenotice-anonplace");' .
'if(node){' .
// Replace placeholder with parsed HTML from $notice.
// Setting outerHTML is supported in all Grade C browsers
// and gracefully fallsback to just setting a property.
// It is short for:
// - Create temporary element or document fragment
// - Set innerHTML.
// - Replace node with wrapper's child nodes.
'node.outerHTML=' . Html::encodeJsVar( $notice ) . ';' .
'}' .
'}());',
$nonce
);
$notice = $jsWrapped;
}
}
}

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Hooks.php (2 KB)

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