PclZip::privExtractFileAsString

Advertisement

Syntax Syntax

PclZip::privExtractFileAsString( $p_entry,  $p_string,  $p_options )

Source Source

File: wp-admin/includes/class-pclzip.php

  function privExtractFileAsString(&$p_entry, &$p_string, &$p_options)
  {
    $v_result=1;

    // ----- Read the file header
    $v_header = array();
    if (($v_result = $this->privReadFileHeader($v_header)) != 1)
    {
      // ----- Return
      return $v_result;
    }


    // ----- Check that the file header is coherent with $p_entry info
    if ($this->privCheckFileHeaders($v_header, $p_entry) != 1) {
        // TBC
    }

    // ----- Look for pre-extract callback
    if (isset($p_options[PCLZIP_CB_PRE_EXTRACT])) {

      // ----- Generate a local information
      $v_local_header = array();
      $this->privConvertHeader2FileInfo($p_entry, $v_local_header);

      // ----- Call the callback
      // Here I do not use call_user_func() because I need to send a reference to the
      // header.
      $v_result = $p_options[PCLZIP_CB_PRE_EXTRACT](PCLZIP_CB_PRE_EXTRACT, $v_local_header);
      if ($v_result == 0) {
        // ----- Change the file status
        $p_entry['status'] = "skipped";
        $v_result = 1;
      }

      // ----- Look for abort result
      if ($v_result == 2) {
        // ----- This status is internal and will be changed in 'skipped'
        $p_entry['status'] = "aborted";
      	$v_result = PCLZIP_ERR_USER_ABORTED;
      }

      // ----- Update the information
      // Only some fields can be modified
      $p_entry['filename'] = $v_local_header['filename'];
    }


    // ----- Look if extraction should be done
    if ($p_entry['status'] == 'ok') {

      // ----- Do the extraction (if not a folder)
      if (!(($p_entry['external']&0x00000010)==0x00000010)) {
        // ----- Look for not compressed file
  //      if ($p_entry['compressed_size'] == $p_entry['size'])
        if ($p_entry['compression'] == 0) {

          // ----- Reading the file
          $p_string = @fread($this->zip_fd, $p_entry['compressed_size']);
        }
        else {

          // ----- Reading the file
          $v_data = @fread($this->zip_fd, $p_entry['compressed_size']);

          // ----- Decompress the file
          if (($p_string = @gzinflate($v_data)) === FALSE) {
              // TBC
          }
        }

        // ----- Trace
      }
      else {
          // TBC : error : can not extract a folder in a string
      }

    }

  	// ----- Change abort status
  	if ($p_entry['status'] == "aborted") {
        $p_entry['status'] = "skipped";
  	}

    // ----- Look for post-extract callback
    elseif (isset($p_options[PCLZIP_CB_POST_EXTRACT])) {

      // ----- Generate a local information
      $v_local_header = array();
      $this->privConvertHeader2FileInfo($p_entry, $v_local_header);

      // ----- Swap the content to header
      $v_local_header['content'] = $p_string;
      $p_string = '';

      // ----- Call the callback
      // Here I do not use call_user_func() because I need to send a reference to the
      // header.
      $v_result = $p_options[PCLZIP_CB_POST_EXTRACT](PCLZIP_CB_POST_EXTRACT, $v_local_header);

      // ----- Swap back the content to header
      $p_string = $v_local_header['content'];
      unset($v_local_header['content']);

      // ----- Look for abort result
      if ($v_result == 2) {
      	$v_result = PCLZIP_ERR_USER_ABORTED;
      }
    }

    // ----- Return
    return $v_result;
  }

Advertisement

Advertisement

Leave a Reply