public function Archive_Tar::_openRead

Return value

bool:

File

core/modules/system/system.tar.inc, line 871

Class

Archive_Tar

Code

public function _openRead() 
 {
  if (strtolower(substr($this->_tarname, 0, 7)) == 'http://') {

    // ----- Look if a local copy need to be done
    if ($this->_temp_tarname == '') {
      $this->_temp_tarname = uniqid('tar') . '.tmp';
      if (!$v_file_from = @fopen($this->_tarname, 'rb')) {
        $this->_error(
        'Unable to open in read mode \''
          . $this->_tarname . '\''
          );
        $this->_temp_tarname = '';
        return false;
      }
      if (!$v_file_to = @fopen($this->_temp_tarname, 'wb')) {
        $this->_error(
        'Unable to open in write mode \''
          . $this->_temp_tarname . '\''
          );
        $this->_temp_tarname = '';
        return false;
      }
      while ($v_data = @fread($v_file_from, 1024)) {
        @fwrite($v_file_to, $v_data);
      }
      @fclose($v_file_from);
      @fclose($v_file_to);
    }

    // ----- File to open if the local copy
    $v_filename = $this->_temp_tarname;
  }
  else {
    // ----- File to open if the normal Tar file

    $v_filename = $this->_tarname;
  }

  if ($this->_compress_type == 'gz' && function_exists('gzopen')) {
    $this->_file = @gzopen($v_filename, "rb");
  }
  else {
    if ($this->_compress_type == 'bz2' && function_exists('bzopen')) {
      $this->_file = @bzopen($v_filename, "r");
    }
    else {
      if ($this->_compress_type == 'lzma2' && function_exists('xzopen')) {
        $this->_file = @xzopen($v_filename, "r");
      }
      else {
        if ($this->_compress_type == 'none') {
          $this->_file = @fopen($v_filename, "rb");
        }
        else {
          $this->_error(
          'Unknown or missing compression type ('
            . $this->_compress_type . ')'
            );
          return false;
        }
      }
    }
  }

  if ($this->_file == 0) {
    $this->_error('Unable to open in read mode \'' . $v_filename . '\'');
    return false;
  }

  return true;
}