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Differences Between: [Versions 310 and 402] [Versions 311 and 402] [Versions 39 and 402] [Versions 400 and 402]

   1  <?php
   2  
   3  /**
   4   * Injector that removes spans with no attributes
   5   */
   6  class HTMLPurifier_Injector_RemoveSpansWithoutAttributes extends HTMLPurifier_Injector
   7  {
   8      /**
   9       * @type string
  10       */
  11      public $name = 'RemoveSpansWithoutAttributes';
  12  
  13      /**
  14       * @type array
  15       */
  16      public $needed = array('span');
  17  
  18      /**
  19       * @type HTMLPurifier_AttrValidator
  20       */
  21      private $attrValidator;
  22  
  23      /**
  24       * Used by AttrValidator.
  25       * @type HTMLPurifier_Config
  26       */
  27      private $config;
  28  
  29      /**
  30       * @type HTMLPurifier_Context
  31       */
  32      private $context;
  33  
  34      /**
  35       * @type SplObjectStorage
  36       */
  37      private $markForDeletion;
  38  
  39      public function __construct()
  40      {
  41          $this->markForDeletion = new SplObjectStorage();
  42      }
  43  
  44      public function prepare($config, $context)
  45      {
  46          $this->attrValidator = new HTMLPurifier_AttrValidator();
  47          $this->config = $config;
  48          $this->context = $context;
  49          return parent::prepare($config, $context);
  50      }
  51  
  52      /**
  53       * @param HTMLPurifier_Token $token
  54       */
  55      public function handleElement(&$token)
  56      {
  57          if ($token->name !== 'span' || !$token instanceof HTMLPurifier_Token_Start) {
  58              return;
  59          }
  60  
  61          // We need to validate the attributes now since this doesn't normally
  62          // happen until after MakeWellFormed. If all the attributes are removed
  63          // the span needs to be removed too.
  64          $this->attrValidator->validateToken($token, $this->config, $this->context);
  65          $token->armor['ValidateAttributes'] = true;
  66  
  67          if (!empty($token->attr)) {
  68              return;
  69          }
  70  
  71          $nesting = 0;
  72          while ($this->forwardUntilEndToken($i, $current, $nesting)) {
  73          }
  74  
  75          if ($current instanceof HTMLPurifier_Token_End && $current->name === 'span') {
  76              // Mark closing span tag for deletion
  77              $this->markForDeletion->attach($current);
  78              // Delete open span tag
  79              $token = false;
  80          }
  81      }
  82  
  83      /**
  84       * @param HTMLPurifier_Token $token
  85       */
  86      public function handleEnd(&$token)
  87      {
  88          if ($this->markForDeletion->contains($token)) {
  89              $this->markForDeletion->detach($token);
  90              $token = false;
  91          }
  92      }
  93  }
  94  
  95  // vim: et sw=4 sts=4