Syntax Syntax
Source Source
File: wp-admin/includes/class-pclzip.php
function privExtractFileUsingTempFile(&$p_entry, &$p_options) { $v_result=1; // ----- Creates a temporary file $v_gzip_temp_name = PCLZIP_TEMPORARY_DIR.uniqid('pclzip-').'.gz'; if (($v_dest_file = @fopen($v_gzip_temp_name, "wb")) == 0) { fclose($v_file); PclZip::privErrorLog(PCLZIP_ERR_WRITE_OPEN_FAIL, 'Unable to open temporary file \''.$v_gzip_temp_name.'\' in binary write mode'); return PclZip::errorCode(); } // ----- Write gz file format header $v_binary_data = pack('va1a1Va1a1', 0x8b1f, Chr($p_entry['compression']), Chr(0x00), time(), Chr(0x00), Chr(3)); @fwrite($v_dest_file, $v_binary_data, 10); // ----- Read the file by PCLZIP_READ_BLOCK_SIZE octets blocks $v_size = $p_entry['compressed_size']; while ($v_size != 0) { $v_read_size = ($v_size < PCLZIP_READ_BLOCK_SIZE ? $v_size : PCLZIP_READ_BLOCK_SIZE); $v_buffer = @fread($this->zip_fd, $v_read_size); //$v_binary_data = pack('a'.$v_read_size, $v_buffer); @fwrite($v_dest_file, $v_buffer, $v_read_size); $v_size -= $v_read_size; } // ----- Write gz file format footer $v_binary_data = pack('VV', $p_entry['crc'], $p_entry['size']); @fwrite($v_dest_file, $v_binary_data, 8); // ----- Close the temporary file @fclose($v_dest_file); // ----- Opening destination file if (($v_dest_file = @fopen($p_entry['filename'], 'wb')) == 0) { $p_entry['status'] = "write_error"; return $v_result; } // ----- Open the temporary gz file if (($v_src_file = @gzopen($v_gzip_temp_name, 'rb')) == 0) { @fclose($v_dest_file); $p_entry['status'] = "read_error"; PclZip::privErrorLog(PCLZIP_ERR_READ_OPEN_FAIL, 'Unable to open temporary file \''.$v_gzip_temp_name.'\' in binary read mode'); return PclZip::errorCode(); } // ----- Read the file by PCLZIP_READ_BLOCK_SIZE octets blocks $v_size = $p_entry['size']; while ($v_size != 0) { $v_read_size = ($v_size < PCLZIP_READ_BLOCK_SIZE ? $v_size : PCLZIP_READ_BLOCK_SIZE); $v_buffer = @gzread($v_src_file, $v_read_size); //$v_binary_data = pack('a'.$v_read_size, $v_buffer); @fwrite($v_dest_file, $v_buffer, $v_read_size); $v_size -= $v_read_size; } @fclose($v_dest_file); @gzclose($v_src_file); // ----- Delete the temporary file @unlink($v_gzip_temp_name); // ----- Return return $v_result; }