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<?php
/**
* File containing the PermissionsHelper class
*
* This file is part of the MediaWiki skin Chameleon.
*
* @copyright 2013 - 2014, Stephan Gambke
* @license GNU General Public License, version 3 (or any later version)
*
* The Chameleon skin 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 3 of the License, or (at your option) any
* later version.
*
* The Chameleon skin 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, see <http://www.gnu.org/licenses/>.
*
* @file
* @ingroup Skins
*/
namespace Skins\Chameleon;
use DOMElement;
/**
* PermissionsHelper class
*
* @author Stephan Gambke
* @since 1.1
* @ingroup Skins
*/
class PermissionsHelper {
private $domElement;
private $skin;
private $default;
/**
* @param \SkinChameleon $skin
* @param DOMElement $domElement
* @param bool $default
*/
public function __construct( \SkinChameleon $skin, DOMElement $domElement = null, $default = false ) {
$this->skin = $skin;
$this->domElement = $domElement;
$this->default = $default;
}
/**
* @since 1.1
*
* @param string $attributeNameInDomElement
*
* @return bool
*/
public function userHasGroup( $attributeNameInDomElement ) {
return $this->userHas( 'group', $attributeNameInDomElement );
}
/**
* @param string $attributeOfUser
* @param string $attributeNameInDomElement
*
* @throws \MWException
* @return bool
*/
protected function userHas( $attributeOfUser, $attributeNameInDomElement ) {
$user = $this->skin->getUser();
$attributeAccessors = array(
'group' => array( $user, 'getEffectiveGroups' ),
'permission' => array( $user, 'getRights' ),
);
if ( !array_key_exists( $attributeOfUser, $attributeAccessors ) ) {
throw new \MWException( sprintf( 'Unknown permission: %s', $attributeOfUser ) );
}
if ( !$this->hasAttribute( $attributeNameInDomElement ) ) {
return $this->default;
}
$expectedValues = $this->getValueListFromAttribute( $attributeNameInDomElement );
$observedValues = call_user_func( $attributeAccessors[ $attributeOfUser ] );
$effectiveValues = array_intersect( $expectedValues, $observedValues );
return !empty( $effectiveValues );
}
/**
* @since 1.1
*
* @param string $attributeNameInDomElement
*
* @return bool
*/
public function hasAttribute( $attributeNameInDomElement ) {
return $this->domElement !== null && $this->domElement->hasAttribute( $attributeNameInDomElement );
}
/**
* @param string $attributeName
*
* @return string[]
*/
protected function getValueListFromAttribute( $attributeName ) {
return $this->domElement === null ? array() : array_map( 'trim', explode( ',', $this->domElement->getAttribute( $attributeName ) ) );
}
/**
* @since 1.1
*
* @param string $attributeNameInDomElement
*
* @return bool
*/
public function userHasPermission( $attributeNameInDomElement ) {
return $this->userHas( 'permission', $attributeNameInDomElement );
}
/**
* @since 1.1
*
* @param string $attributeNameInDomElement
*
* @return bool
*/
public function pageIsInNamespace( $attributeNameInDomElement ) {
if ( !$this->hasAttribute( $attributeNameInDomElement ) ) {
return $this->default;
}
$expectedNamespaces = array_map( array( $this, 'getNamespaceNumberFromDefinedConstantName' ), $this->getValueListFromAttribute( $attributeNameInDomElement ) );
$pageNamespace = $this->skin->getTitle()->getNamespace();
return in_array( $pageNamespace, $expectedNamespaces );
}
/**
* @since 1.1
*
* AGREGADO PARA REEVO!
*
* @param string $attributeNameInDomElement
*
* @return bool
*/
public function pageHasCategory( $attributeNameInDomElement ) {
if ( !$this->hasAttribute( $attributeNameInDomElement ) ) {
return $this->default;
}
$expectedCategories = $this->getValueListFromAttribute( $attributeNameInDomElement );
$pagename = $this->skin->getTitle();
$cats = $this->skin->getSkin()->getCategoryLinks();
preg_match_all('/<\s*a[^>]*>(.*?)<\s*\/\s*a>/', $cats, $output_array);
$pageCategory = $output_array[1];
$match = array_intersect($pageCategory,$expectedCategories);
$final = reset($match);
if ($match) {
// error_log('Se encontro una categoria en la página '.$pagename.' que aplica una regla de Modification en Chamaleon');
$pageCategory = $final;
}
return in_array( $pageCategory, $expectedCategories );
}
/**
* @param null|string $value
*
* @return int
*/
protected function getNamespaceNumberFromDefinedConstantName( $value ) {
$constants = get_defined_constants();
if ( !is_null( $value ) && array_key_exists( $value, $constants ) ) {
$value = $constants[ $value ];
}
return is_int( $value ) ? $value : -1;
}
}
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