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   1  <?php
   2  
   3  /**
   4   * Joomla! Content Management System
   5   *
   6   * @copyright  (C) 2005 Open Source Matters, Inc. <https://www.joomla.org>
   7   * @license    GNU General Public License version 2 or later; see LICENSE.txt
   8   */
   9  
  10  namespace Joomla\CMS\Document;
  11  
  12  use Joomla\CMS\Uri\Uri;
  13  
  14  // phpcs:disable PSR1.Files.SideEffects
  15  \defined('JPATH_PLATFORM') or die;
  16  // phpcs:enable PSR1.Files.SideEffects
  17  
  18  /**
  19   * Abstract class for a renderer
  20   *
  21   * @since  1.7.0
  22   */
  23  abstract class DocumentRenderer implements RendererInterface
  24  {
  25      /**
  26       * Reference to the Document object that instantiated the renderer
  27       *
  28       * @var    Document
  29       * @since  1.7.0
  30       */
  31      protected $_doc = null;
  32  
  33      /**
  34       * Renderer mime type
  35       *
  36       * @var    string
  37       * @since  1.7.0
  38       */
  39      protected $_mime = 'text/html';
  40  
  41      /**
  42       * Class constructor
  43       *
  44       * @param   Document  $doc  A reference to the Document object that instantiated the renderer
  45       *
  46       * @since   1.7.0
  47       */
  48      public function __construct(Document $doc)
  49      {
  50          $this->_doc = $doc;
  51      }
  52  
  53      /**
  54       * Return the content type of the renderer
  55       *
  56       * @return  string  The contentType
  57       *
  58       * @since   1.7.0
  59       */
  60      public function getContentType()
  61      {
  62          return $this->_mime;
  63      }
  64  
  65      /**
  66       * Convert links in a text from relative to absolute
  67       *
  68       * @param   string  $text  The text processed
  69       *
  70       * @return  string   Text with converted links
  71       *
  72       * @since   1.7.0
  73       */
  74      protected function _relToAbs($text)
  75      {
  76          $base = Uri::base();
  77          $text = preg_replace("/(href|src)=\"(?!http|ftp|https|mailto|data|\/\/)([^\"]*)\"/", "$1=\"$base\$2\"", $text);
  78  
  79          return $text;
  80      }
  81  }