[Sommaire] [Imprimer]

   1  <?php
   2  
   3      lt_include( PLOG_CLASS_PATH."class/file/unpacker/baseunpacker.class.php" );
   4      lt_include( PLOG_CLASS_PATH."class/file/unpacker/pclzip.lib.php" );    
   5  
   6      /**
   7       * \ingroup File_Unpacker
   8       * 
   9       * unpacks files with ZIP. It can also use native PHP code with the
  10       * PclZip library, set "unzip_use_native_version" to true if the configuration table
  11       * for enabling that option.
  12       *
  13       * It users the binary "zip" to unpack the files. Its location is obtained from the
  14       * config parameter "path_to_unzip" or /usr/bin/unzip if it does not exist
  15       *
  16       * @see Unpacker
  17       * @see BaseUnpacker
  18       */
  19      class ZipUnpacker extends BaseUnpacker 
  20      {
  21  
  22      	function ZipUnpacker()
  23          {
  24              $this->BaseUnpacker();
  25          }
  26          
  27          /** 
  28           * uses a native php library that is capable of dealing with .zip
  29           * files without needing to call external commands
  30           *
  31           * @param file
  32           * @param destFolder
  33           * @return true if successful or false otherwise
  34           */
  35  		function unpackNative( $file, $destFolder )
  36          {
  37              $z = new PclZip($file);
  38              return $z->extract( $destFolder );
  39          }
  40  
  41          /**
  42           * @see BaseUnpacker::unpack()
  43           */
  44          function unpack( $file, $destFolder )
  45          {
  46              // get the paths where tar and gz are
  47              $config =& Config::getConfig();
  48              
  49              if( $config->getValue( "unzip_use_native_version" )) {
  50                  return $this->unpackNative( $file, $destFolder );
  51              }
  52              else {
  53                  $unzipPath = $config->getValue( "path_to_unzip" );
  54                  if( $unzipPath == "" )
  55                      $unzipPath = DEFAULT_UNZIP_PATH;
  56  
  57                  $cmd = "$unzipPath -o $file -d $destFolder";
  58  
  59                  $result = exec( $cmd, $output, $retval );
  60                  
  61                  //
  62                  // :KLUDGE:
  63                  // apparently, we should get something in $retval but there's nothing
  64                  // to the only way I've found to check if the command finished
  65                  // successfully was checking if the $output array is full or empty
  66                  //
  67  
  68                  return ( $retval == 0 );
  69              }
  70          }
  71       }
  72  ?>