Ampache PHP Cross Reference Groupware Applications

Source: /modules/getid3/write.metaflac.php - 162 lines - 6173 bytes - Summary - Text - Print

   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.metaflac.php                                          //
  12  // module for writing metaflac tags                            //
  13  // dependencies: /helperapps/metaflac.exe                      //
  14  //                                                            ///
  15  /////////////////////////////////////////////////////////////////
  16  
  17  
  18  class getid3_write_metaflac
  19  {
  20  
  21      public $filename;
  22      public $tag_data;
  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 getid3_write_metaflac() {
  27          return true;
  28      }
  29  
  30  	public function WriteMetaFLAC() {
  31  
  32          if (preg_match('#(1|ON)#i', ini_get('safe_mode'))) {
  33              $this->errors[] = 'PHP running in Safe Mode (backtick operator not available) - cannot call metaflac, tags not written';
  34              return false;
  35          }
  36  
  37          // Create file with new comments
  38          $tempcommentsfilename = tempnam(GETID3_TEMP_DIR, 'getID3');
  39          if (is_writable($tempcommentsfilename) && is_file($tempcommentsfilename) && ($fpcomments = fopen($tempcommentsfilename, 'wb'))) {
  40              foreach ($this->tag_data as $key => $value) {
  41                  foreach ($value as $commentdata) {
  42                      fwrite($fpcomments, $this->CleanmetaflacName($key).'='.$commentdata."\n");
  43                  }
  44              }
  45              fclose($fpcomments);
  46  
  47          } else {
  48              $this->errors[] = 'failed to open temporary tags file, tags not written - fopen("'.$tempcommentsfilename.'", "wb")';
  49              return false;
  50          }
  51  
  52          $oldignoreuserabort = ignore_user_abort(true);
  53          if (GETID3_OS_ISWINDOWS) {
  54  
  55              if (file_exists(GETID3_HELPERAPPSDIR.'metaflac.exe')) {
  56                  //$commandline = '"'.GETID3_HELPERAPPSDIR.'metaflac.exe" --no-utf8-convert --remove-all-tags --import-tags-from="'.$tempcommentsfilename.'" "'.str_replace('/', '\\', $this->filename).'"';
  57                  //  metaflac works fine if you copy-paste the above commandline into a command prompt,
  58                  //  but refuses to work with `backtick` if there are "doublequotes" present around BOTH
  59                  //  the metaflac pathname and the target filename. For whatever reason...??
  60                  //  The solution is simply ensure that the metaflac pathname has no spaces,
  61                  //  and therefore does not need to be quoted
  62  
  63                  // On top of that, if error messages are not always captured properly under Windows
  64                  // To at least see if there was a problem, compare file modification timestamps before and after writing
  65                  clearstatcache();
  66                  $timestampbeforewriting = filemtime($this->filename);
  67  
  68                  $commandline = GETID3_HELPERAPPSDIR.'metaflac.exe --no-utf8-convert --remove-all-tags --import-tags-from='.escapeshellarg($tempcommentsfilename).' '.escapeshellarg($this->filename).' 2>&1';
  69                  $metaflacError = `$commandline`;
  70  
  71                  if (empty($metaflacError)) {
  72                      clearstatcache();
  73                      if ($timestampbeforewriting == filemtime($this->filename)) {
  74                          $metaflacError = 'File modification timestamp has not changed - it looks like the tags were not written';
  75                      }
  76                  }
  77              } else {
  78                  $metaflacError = 'metaflac.exe not found in '.GETID3_HELPERAPPSDIR;
  79              }
  80  
  81          } else {
  82  
  83              // It's simpler on *nix
  84              $commandline = 'metaflac --no-utf8-convert --remove-all-tags --import-tags-from='.escapeshellarg($tempcommentsfilename).' '.escapeshellarg($this->filename).' 2>&1';
  85              $metaflacError = `$commandline`;
  86  
  87          }
  88  
  89          // Remove temporary comments file
  90          unlink($tempcommentsfilename);
  91          ignore_user_abort($oldignoreuserabort);
  92  
  93          if (!empty($metaflacError)) {
  94  
  95              $this->errors[] = 'System call to metaflac failed with this message returned: '."\n\n".$metaflacError;
  96              return false;
  97  
  98          }
  99  
 100          return true;
 101      }
 102  
 103  
 104  	public function DeleteMetaFLAC() {
 105  
 106          if (preg_match('#(1|ON)#i', ini_get('safe_mode'))) {
 107              $this->errors[] = 'PHP running in Safe Mode (backtick operator not available) - cannot call metaflac, tags not deleted';
 108              return false;
 109          }
 110  
 111          $oldignoreuserabort = ignore_user_abort(true);
 112          if (GETID3_OS_ISWINDOWS) {
 113  
 114              if (file_exists(GETID3_HELPERAPPSDIR.'metaflac.exe')) {
 115                  // To at least see if there was a problem, compare file modification timestamps before and after writing
 116                  clearstatcache();
 117                  $timestampbeforewriting = filemtime($this->filename);
 118  
 119                  $commandline = GETID3_HELPERAPPSDIR.'metaflac.exe --remove-all-tags "'.$this->filename.'" 2>&1';
 120                  $metaflacError = `$commandline`;
 121  
 122                  if (empty($metaflacError)) {
 123                      clearstatcache();
 124                      if ($timestampbeforewriting == filemtime($this->filename)) {
 125                          $metaflacError = 'File modification timestamp has not changed - it looks like the tags were not deleted';
 126                      }
 127                  }
 128              } else {
 129                  $metaflacError = 'metaflac.exe not found in '.GETID3_HELPERAPPSDIR;
 130              }
 131  
 132          } else {
 133  
 134              // It's simpler on *nix
 135              $commandline = 'metaflac --remove-all-tags "'.$this->filename.'" 2>&1';
 136              $metaflacError = `$commandline`;
 137  
 138          }
 139  
 140          ignore_user_abort($oldignoreuserabort);
 141  
 142          if (!empty($metaflacError)) {
 143              $this->errors[] = 'System call to metaflac failed with this message returned: '."\n\n".$metaflacError;
 144              return false;
 145          }
 146          return true;
 147      }
 148  
 149  
 150  	public function CleanmetaflacName($originalcommentname) {
 151          // A case-insensitive field name that may consist of ASCII 0x20 through 0x7D, 0x3D ('=') excluded.
 152          // ASCII 0x41 through 0x5A inclusive (A-Z) is to be considered equivalent to ASCII 0x61 through
 153          // 0x7A inclusive (a-z).
 154  
 155          // replace invalid chars with a space, return uppercase text
 156          // Thanks Chris Bolt <chris-getid3Øbolt*cx> for improving this function
 157          // note: *reg_replace() replaces nulls with empty string (not space)
 158          return strtoupper(preg_replace('#[^ -<>-}]#', ' ', str_replace("\x00", ' ', $originalcommentname)));
 159  
 160      }
 161  
 162  }

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