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

   1 <?php
   2 /////////////////////////////////////////////////////////////////
   3 /// getID3() by James Heinrich <info@getid3.org>               //
   4 //  available at http://getid3.sourceforge.net                 //
   5 //            or http://www.getid3.org                         //
   6 //          also https://github.com/JamesHeinrich/getID3       //
   7 /////////////////////////////////////////////////////////////////
   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         public $filename;
  21         public $tag_data;
  22         //public $lyrics3_version = 2;       // 1 or 2
  23         public $warnings        = array(); // any non-critical errors will be stored here
  24         public $errors          = array(); // any critical errors will be stored here
  25
  26         public function __construct() {
  27                 return true;
  28         }
  29
  30         public function WriteLyrics3() {
  31                 $this->errors[] = 'WriteLyrics3() not yet functional - cannot write Lyrics3';
  32                 return false;
  33         }
  34         public function DeleteLyrics3() {
  35                 // Initialize getID3 engine
  36                 $getID3 = new getID3;
  37                 $ThisFileInfo = $getID3->analyze($this->filename);
  38                 if (isset($ThisFileInfo['lyrics3']['tag_offset_start']) && isset($ThisFileInfo['lyrics3']['tag_offset_end'])) {
  39                         if (is_readable($this->filename) && is_writable($this->filename) && is_file($this->filename) && ($fp = fopen($this->filename, 'a+b'))) {
  40
  41                                 flock($fp, LOCK_EX);
  42                                 $oldignoreuserabort = ignore_user_abort(true);
  43
  44                                 fseek($fp, $ThisFileInfo['lyrics3']['tag_offset_end']);
  45                                 $DataAfterLyrics3 = '';
  46                                 if ($ThisFileInfo['filesize'] > $ThisFileInfo['lyrics3']['tag_offset_end']) {
  47                                         $DataAfterLyrics3 = fread($fp, $ThisFileInfo['filesize'] - $ThisFileInfo['lyrics3']['tag_offset_end']);
  48                                 }
  49
  50                                 ftruncate($fp, $ThisFileInfo['lyrics3']['tag_offset_start']);
  51
  52                                 if (!empty($DataAfterLyrics3)) {
  53                                         fseek($fp, $ThisFileInfo['lyrics3']['tag_offset_start']);
  54                                         fwrite($fp, $DataAfterLyrics3, strlen($DataAfterLyrics3));
  55                                 }
  56
  57                                 flock($fp, LOCK_UN);
  58                                 fclose($fp);
  59                                 ignore_user_abort($oldignoreuserabort);
  60
  61                                 return true;
  62
  63                         } else {
  64                                 $this->errors[] = 'Cannot fopen('.$this->filename.', "a+b")';
  65                                 return false;
  66                         }
  67                 }
  68                 // no Lyrics3 present
  69                 return true;
  70         }
  71
  72 }