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   1  <?php
   2  /*
   3   * Limb PHP Framework
   4   *
   5   * @link http://limb-project.com 
   6   * @copyright  Copyright &copy; 2004-2007 BIT(http://bit-creative.com)
   7   * @license    LGPL http://www.gnu.org/copyleft/lesser.html 
   8   */
   9  
  10  /**

  11   * class lmbUriContentReader.

  12   *

  13   * @package web_spider

  14   * @version $Id: lmbUriContentReader.class.php 5945 2007-06-06 08:31:43Z pachanga $

  15   */
  16  class lmbUriContentReader
  17  {
  18    protected $content;
  19    protected $http_response_header;
  20    protected $resource;
  21  
  22    function __destruct()
  23    {
  24      $this->releaseResource();
  25    }
  26  
  27    function releaseResource()
  28    {
  29      if($this->resource)
  30        fclose($this->resource);
  31  
  32      $this->resource = null;
  33    }
  34  
  35    function reset()
  36    {
  37      $this->http_response_header = array();
  38      $this->content = '';
  39      $this->uri = null;
  40      $this->releaseResource();
  41    }
  42  
  43    function open($uri)
  44    {
  45      $this->reset();
  46  
  47      $this->uri = $uri;
  48  
  49      if($this->resource = @fopen($uri->toString(), 'r'))
  50        $this->http_response_header = stream_get_meta_data($this->resource);
  51    }
  52  
  53    function getUri()
  54    {
  55      return $this->uri;
  56    }
  57  
  58    function getContent()
  59    {
  60      if($this->content)
  61        return $this->content;
  62  
  63      while($line = fgets($this->resource, 2000))
  64        $this->content .= $line;
  65  
  66      return $this->content;
  67    }
  68  
  69    function getHttpResponseHeader()
  70    {
  71      return $this->http_response_header;
  72    }
  73  
  74    function getContentType()
  75    {
  76      if(!isset($this->http_response_header['wrapper_data']))
  77        return;
  78  
  79      foreach($this->http_response_header['wrapper_data'] as $header)
  80        if(preg_match('~^Content-Type:\s*([^;\s]+)~', $header, $matches))
  81          return $matches[1];
  82  
  83      return false;
  84    }
  85  
  86  }
  87  
  88  ?>