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<?php /** * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * http://www.gnu.org/copyleft/gpl.html * * @file */ use MediaWiki\Config\Config; use MediaWiki\HookContainer\ProtectedHookAccessorTrait; use MediaWiki\MediaWikiServices; /** * PHP-based skin template that holds data. * * Modern usage with returned output: * * class MyTemplate extends QuickTemplate { * public function execute() { * $html = 'Hello, ' . Html::element( 'strong', [], $this->get( 'name' ) ); * echo $html; * } * } * $tpl = new MyTemplate(); * $tpl->set( 'name', 'World' ); * $output = $tpl->getHTML(); * * Classic usage with native HTML echo: * * class MyTemplate extends QuickTemplate { * public function execute() { ?> * * Hello, <strong><?php $this->text( 'name' ); ?></strong> * * <?php * } * } * $tpl = new MyTemplate(); * $tpl->set( 'name', 'World' ); * * $tpl->execute(); // echo output * * * QuickTemplate was originally developed as drop-in replacement for PHPTAL 0.7 (<http://phptal.org/>). * * @stable to extend * @ingroup Skins */ abstract class QuickTemplate { use ProtectedHookAccessorTrait; /** * @var array */ public $data; /** @var Config */ protected $config; /** @var array */ private $deprecated = []; /** * @param Config|null $config */ public function __construct( ?Config $config = null ) { $this->data = []; if ( $config === null ) { wfDebug( __METHOD__ . ' was called with no Config instance passed to it' ); $config = MediaWikiServices::getInstance()->getMainConfig(); } $this->config = $config; } /** * Sets a template key as deprecated. * * @internal only for usage inside Skin and SkinTemplate class. * @param string $name * @param string $version When it was deprecated e.g. 1.38 */ public function deprecate( string $name, string $version ) { $this->deprecated[$name] = $version; } /** * Sets the value $value to $name * @param string $name * @param mixed $value */ public function set( $name, $value ) { $this->data[$name] = $value; } /** * extends the value of data with name $name with the value $value * @since 1.25 * @param string $name * @param mixed $value */ public function extend( $name, $value ) { if ( $this->haveData( $name ) ) { $this->data[$name] .= $value; } else { $this->data[$name] = $value; } } /** * Checks if the template key is deprecated * * @param string $name */ private function checkDeprecationStatus( string $name ) { $deprecated = $this->deprecated[ $name ] ?? false; if ( $deprecated ) { wfDeprecated( 'QuickTemplate::(get/html/text/haveData) with parameter `' . $name . '`', $deprecated ); } } /** * Gets the template data requested * @since 1.22 * @param string $name Key for the data * @param mixed|null $default Optional default (or null) * @return mixed The value of the data requested or the default * @return-taint onlysafefor_htmlnoent */ public function get( $name, $default = null ) { $this->checkDeprecationStatus( $name ); return $this->data[$name] ?? $default; } /** * Main function, used by classes that subclass QuickTemplate * to show the actual HTML output */ abstract public function execute(); /** * @param string $str * @suppress SecurityCheck-DoubleEscaped $this->data can be either */ protected function text( $str ) { $this->checkDeprecationStatus( $str ); echo htmlspecialchars( $this->data[$str] ); } /** * @param string $str * @suppress SecurityCheck-XSS phan-taint-check cannot tell if $str is pre-escaped */ public function html( $str ) { $this->checkDeprecationStatus( $str ); echo $this->data[$str]; } /** * @param string $msgKey */ public function msg( $msgKey ) { echo htmlspecialchars( wfMessage( $msgKey )->text() ); } /** * @param string $str * @return bool */ private function haveData( $str ) { $this->checkDeprecationStatus( $str ); return isset( $this->data[$str] ); } /** * @param string $msgKey * @return bool */ protected function haveMsg( $msgKey ) { $msg = wfMessage( $msgKey ); return $msg->exists() && !$msg->isDisabled(); } /** * Get the Skin object related to this object * * @return SkinTemplate */ public function getSkin() { return $this->data['skin']; } /** * Fetch the output of a QuickTemplate and return it * * @since 1.23 * @return string */ public function getHTML() { ob_start(); $this->execute(); $html = ob_get_contents(); ob_end_clean(); return $html; } }
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