inc/poche/Url.class.php

   1 <?php
   2 /**
   3  * poche, a read it later open source system
   4  *
   5  * @category   poche
   6  * @author     Nicolas Lœuillet <support@inthepoche.com>
   7  * @copyright  2013
   8  * @license    http://www.wtfpl.net/ see COPYING file
   9  */
  10
  11 class Url
  12 {
  13     public $url;
  14
  15     function __construct($url)
  16     {
  17         $this->url = base64_decode($url);
  18     }
  19
  20     public function getUrl() {
  21         return $this->url;
  22     }
  23
  24     public function setUrl($url) {
  25         $this->url = $url;
  26     }
  27
  28     public function isCorrect()
  29     {
  30         $pattern = '|^http(s)?://[a-z0-9-]+(.[a-z0-9-]+)*(:[0-9]+)?(/.*)?$|i';
  31
  32         return preg_match($pattern, $this->url);
  33     }
  34
  35     public function clean()
  36     {
  37         $url = html_entity_decode(trim($this->url));
  38
  39         $stuff = strpos($url,'&utm_source=');
  40         if ($stuff !== FALSE)
  41             $url = substr($url, 0, $stuff);
  42         $stuff = strpos($url,'?utm_source=');
  43         if ($stuff !== FALSE)
  44             $url = substr($url, 0, $stuff);
  45         $stuff = strpos($url,'#xtor=RSS-');
  46         if ($stuff !== FALSE)
  47             $url = substr($url, 0, $stuff);
  48
  49         $this->url = $url;
  50     }
  51
  52     public function fetchContent()
  53     {
  54         if ($this->isCorrect()) {
  55             $this->clean();
  56             $html = Encoding::toUTF8(Tools::getFile($this->getUrl()));
  57
  58             # if Tools::getFile() if not able to retrieve HTTPS content, try the same URL with HTTP protocol
  59             if (!preg_match('!^https?://!i', $this->getUrl()) && (!isset($html) || strlen($html) <= 0)) {
  60                 $this->setUrl('http://' . $this->getUrl());
  61                 $html = Encoding::toUTF8(Tools::getFile($this->getUrl()));
  62             }
  63
  64             if (function_exists('tidy_parse_string')) {
  65                 $tidy = tidy_parse_string($html, array(), 'UTF8');
  66                 $tidy->cleanRepair();
  67                 $html = $tidy->value;
  68             }
  69
  70             $parameters = array();
  71             if (isset($html) and strlen($html) > 0)
  72             {
  73                 $readability = new Readability($html, $this->getUrl());
  74                 $readability->convertLinksToFootnotes = CONVERT_LINKS_FOOTNOTES;
  75                 $readability->revertForcedParagraphElements = REVERT_FORCED_PARAGRAPH_ELEMENTS;
  76
  77                 if($readability->init())
  78                 {
  79                     $content = $readability->articleContent->innerHTML;
  80                     $parameters['title'] = $readability->articleTitle->innerHTML;
  81                     $parameters['content'] = $content;
  82
  83                     return $parameters;
  84                 }
  85             }
  86         }
  87         else {
  88             #$msg->add('e', _('error during url preparation : the link is not valid'));
  89             Tools::logm($this->getUrl() . ' is not a valid url');
  90         }
  91
  92         return FALSE;
  93     }
  94 }