www/plugins-dist/medias/lib/getid3/write.lyrics3.php

   1 <?php
   2
   3 /////////////////////////////////////////////////////////////////
   4 /// getID3() by James Heinrich <info@getid3.org>               //
   5 //  available at https://github.com/JamesHeinrich/getID3       //
   6 //            or https://www.getid3.org                        //
   7 //            or http://getid3.sourceforge.net                 //
   8 //  see readme.txt for more details                            //
   9 /////////////////////////////////////////////////////////////////
  10 //                                                             //
  11 // write.lyrics3.php                                           //
  12 // module for writing Lyrics3 tags                             //
  13 // dependencies: module.tag.lyrics3.php                        //
  14 //                                                            ///
  15 /////////////////////////////////////////////////////////////////
  16
  17
  18 class getid3_write_lyrics3
  19 {
  20         /**
  21          * @var string
  22          */
  23         public $filename;
  24
  25         /**
  26          * @var array
  27          */
  28         public $tag_data;
  29         //public $lyrics3_version = 2;       // 1 or 2
  30
  31         /**
  32          * Any non-critical errors will be stored here.
  33          *
  34          * @var array
  35          */
  36         public $warnings        = array();
  37
  38         /**
  39          * Any critical errors will be stored here.
  40          *
  41          * @var array
  42          */
  43         public $errors          = array();
  44
  45         public function __construct() {
  46         }
  47
  48         /**
  49          * @return bool
  50          */
  51         public function WriteLyrics3() {
  52                 $this->errors[] = 'WriteLyrics3() not yet functional - cannot write Lyrics3';
  53                 return false;
  54         }
  55
  56         /**
  57          * @return bool
  58          */
  59         public function DeleteLyrics3() {
  60                 // Initialize getID3 engine
  61                 $getID3 = new getID3;
  62                 $ThisFileInfo = $getID3->analyze($this->filename);
  63                 if (isset($ThisFileInfo['lyrics3']['tag_offset_start']) && isset($ThisFileInfo['lyrics3']['tag_offset_end'])) {
  64                         if (is_readable($this->filename) && getID3::is_writable($this->filename) && is_file($this->filename) && ($fp = fopen($this->filename, 'a+b'))) {
  65
  66                                 flock($fp, LOCK_EX);
  67                                 $oldignoreuserabort = ignore_user_abort(true);
  68
  69                                 fseek($fp, $ThisFileInfo['lyrics3']['tag_offset_end']);
  70                                 $DataAfterLyrics3 = '';
  71                                 if ($ThisFileInfo['filesize'] > $ThisFileInfo['lyrics3']['tag_offset_end']) {
  72                                         $DataAfterLyrics3 = fread($fp, $ThisFileInfo['filesize'] - $ThisFileInfo['lyrics3']['tag_offset_end']);
  73                                 }
  74
  75                                 ftruncate($fp, $ThisFileInfo['lyrics3']['tag_offset_start']);
  76
  77                                 if (!empty($DataAfterLyrics3)) {
  78                                         fseek($fp, $ThisFileInfo['lyrics3']['tag_offset_start']);
  79                                         fwrite($fp, $DataAfterLyrics3, strlen($DataAfterLyrics3));
  80                                 }
  81
  82                                 flock($fp, LOCK_UN);
  83                                 fclose($fp);
  84                                 ignore_user_abort($oldignoreuserabort);
  85
  86                                 return true;
  87
  88                         } else {
  89                                 $this->errors[] = 'Cannot fopen('.$this->filename.', "a+b")';
  90                                 return false;
  91                         }
  92                 }
  93                 // no Lyrics3 present
  94                 return true;
  95         }
  96
  97 }