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<?php /** * Injector that removes spans with no attributes */ class HTMLPurifier_Injector_RemoveSpansWithoutAttributes extends HTMLPurifier_Injector { /** * @type string */ public $name = 'RemoveSpansWithoutAttributes'; /** * @type array */ public $needed = array('span'); /** * @type HTMLPurifier_AttrValidator */ private $attrValidator; /** * Used by AttrValidator. * @type HTMLPurifier_Config */ private $config; /** * @type HTMLPurifier_Context */ private $context; public function prepare($config, $context) { $this->attrValidator = new HTMLPurifier_AttrValidator(); $this->config = $config; $this->context = $context; return parent::prepare($config, $context); } /** * @param HTMLPurifier_Token $token */ public function handleElement(&$token) { if ($token->name !== 'span' || !$token instanceof HTMLPurifier_Token_Start) { return; } // We need to validate the attributes now since this doesn't normally // happen until after MakeWellFormed. If all the attributes are removed // the span needs to be removed too. $this->attrValidator->validateToken($token, $this->config, $this->context); $token->armor['ValidateAttributes'] = true; if (!empty($token->attr)) { return; } $nesting = 0; while ($this->forwardUntilEndToken($i, $current, $nesting)) { } if ($current instanceof HTMLPurifier_Token_End && $current->name === 'span') { // Mark closing span tag for deletion $current->markForDeletion = true; // Delete open span tag $token = false; } } /** * @param HTMLPurifier_Token $token */ public function handleEnd(&$token) { if ($token->markForDeletion) { $token = false; } } } // vim: et sw=4 sts=4