inc/3rdparty/libraries/MOBIClass/OnlineArticle.php

   1 <?php
   2
   3 /**
   4  * Description of OnlineArticle
   5  *
   6  * @author Sander
   7  */
   8 class OnlineArticle extends ContentProvider {
   9         private $text;
  10         private $images;
  11         private $metadata = array();
  12         private $imgCounter = 0;
  13
  14         public function  __construct($url) {
  15                 if (!preg_match('!^https?://!i', $url)) $url = 'http://'.$url;
  16
  17                 $data = Http::Request($url);
  18                 //$enc = mb_detect_encoding($str, "UTF-8,ISO-8859-1,ASCII");
  19                 $html = mb_convert_encoding($data, "UTF-8", "UTF-8,ISO-8859-1,ASCII");
  20                 //$html = utf8_encode($html);
  21                 $r = new Readability($html, $url);
  22                 $r->init();
  23                 if(!isset($this->metadata["title"])){
  24                         $this->metadata["title"] = CharacterEntities::convert(strip_tags($r->getTitle()->innerHTML));
  25                 }
  26                 if(!isset($this->metadata["author"])){
  27                         $parts = parse_url($url);
  28                         $this->metadata["author"] = $parts["host"];
  29                 }
  30
  31                 $article = $r->getContent()->innerHTML;
  32                 if(substr($article, 0, 5) == "<body"){
  33                         $article = "<html><head><meta http-equiv='Content-Type' content='text/html; charset=UTF-8'/></head>".$article."</html>";
  34                 }else{
  35                         $article = "<html><head><meta http-equiv='Content-Type' content='text/html; charset=UTF-8'/></head><body>".$article."</body></html>";
  36                 }
  37                 $doc = new DOMDocument();
  38                 @$doc->loadHTML($article) or die($article);
  39                 $doc->normalizeDocument();
  40
  41                 $this->images = $this->handleImages($doc, $url);
  42                 $this->text = $doc->saveHTML();
  43         }
  44
  45         /**
  46          * Get the text data to be integrated in the MOBI file
  47          * @return string
  48          */
  49         public function getTextData(){
  50                 return $this->text;
  51         }
  52         /**
  53          * Get the images (an array containing the jpeg data). Array entry 0 will
  54          * correspond to image record 0.
  55          * @return array
  56          */
  57         public function getImages(){
  58                 return $this->images;
  59         }
  60         /**
  61          * Get the metadata in the form of a hashtable (for example, title or author).
  62          * @return array
  63          */
  64         public function getMetaData(){
  65                 return $this->metadata;
  66         }
  67         /**
  68          *
  69          * @param DOMElement $dom
  70          * @return array
  71          */
  72         private function handleImages($dom, $url){
  73                 $images = array();
  74
  75                 $parts = parse_url($url);
  76
  77                 $savedImages = array();
  78
  79                 $imgElements = $dom->getElementsByTagName('img');
  80                 foreach($imgElements as $img) {
  81                         $src = $img->getAttribute("src");
  82
  83                         $is_root = false;
  84                         if(substr($src, 0, 1) == "/"){
  85                                 $is_root = true;
  86                         }
  87
  88                         $parsed = parse_url($src);
  89
  90                         if(!isset($parsed["host"])){
  91                                 if($is_root){
  92                                         $src = http_build_url($url, $parsed, HTTP_URL_REPLACE);
  93                                 }else{
  94                                         $src = http_build_url($url, $parsed, HTTP_URL_JOIN_PATH);
  95                                 }
  96                         }
  97                         $img->setAttribute("src", "");
  98                         if(isset($savedImages[$src])){
  99                                 $img->setAttribute("recindex", $savedImages[$src]);
 100                         }else{
 101                                 $image = ImageHandler::DownloadImage($src);
 102
 103                                 if($image !== false){
 104                                         $images[$this->imgCounter] = new FileRecord(new Record($image));
 105
 106                                         $img->setAttribute("recindex", $this->imgCounter);
 107                                         $savedImages[$src] = $this->imgCounter;
 108                                         $this->imgCounter++;
 109                                 }
 110                         }
 111                 }
 112
 113                 return $images;
 114         }
 115 }
 116 ?>