Class: Omnizip::Formats::Rar::BlockParser

Inherits:
Object
  • Object
show all
Includes:
Constants
Defined in:
lib/omnizip/formats/rar/block_parser.rb

Overview

RAR block parser Parses different block types in RAR archives

Constant Summary

Constants included from Constants

Constants::ARCHIVE_AUTH_INFO, Constants::ARCHIVE_COMMENT, Constants::ARCHIVE_ENCRYPTED, Constants::ARCHIVE_FIRST_VOLUME, Constants::ARCHIVE_LOCKED, Constants::ARCHIVE_NEW_NAMING, Constants::ARCHIVE_RECOVERY, Constants::ARCHIVE_SOLID, Constants::ARCHIVE_VOLUME, Constants::BLOCK_ARCHIVE, Constants::BLOCK_COMMENT, Constants::BLOCK_ENDARC, Constants::BLOCK_FILE, Constants::BLOCK_MARKER, Constants::BLOCK_OLD_AUTH, Constants::BLOCK_OLD_EXTRA, Constants::BLOCK_OLD_RECOVERY, Constants::BLOCK_OLD_SUBBLOCK, Constants::BLOCK_SUBBLOCK, Constants::FILE_COMMENT, Constants::FILE_DIRECTORY, Constants::FILE_ENCRYPTED, Constants::FILE_EXT_TIME, Constants::FILE_LARGE, Constants::FILE_SALT, Constants::FILE_SOLID, Constants::FILE_SPLIT_AFTER, Constants::FILE_SPLIT_BEFORE, Constants::FILE_UNICODE, Constants::FILE_VERSION, Constants::METHOD_BEST, Constants::METHOD_FAST, Constants::METHOD_FASTEST, Constants::METHOD_GOOD, Constants::METHOD_NORMAL, Constants::METHOD_STORE, Constants::OS_BEOS, Constants::OS_MACOS, Constants::OS_MSDOS, Constants::OS_OS2, Constants::OS_UNIX, Constants::OS_WIN32, Constants::RAR4_SIGNATURE, Constants::RAR5_FLAG_CHILD_BLOCKS, Constants::RAR5_FLAG_DATA_AREA, Constants::RAR5_FLAG_DATA_INHERITED, Constants::RAR5_FLAG_EXTRA_AREA, Constants::RAR5_FLAG_IS_DIR, Constants::RAR5_FLAG_MULTI_VOLUME, Constants::RAR5_FLAG_UNKNOWN_BLOCKS, Constants::RAR5_HEADER_ENCRYPTION, Constants::RAR5_HEADER_END, Constants::RAR5_HEADER_FILE, Constants::RAR5_HEADER_MAIN, Constants::RAR5_HEADER_SERVICE, Constants::RAR5_SIGNATURE

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(version) ⇒ BlockParser

Initialize block parser

Parameters:

  • version (Integer) —

    RAR version (4 or 5)



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# File 'lib/omnizip/formats/rar/block_parser.rb', line 16

def initialize(version)
  @version = version
end

Instance Attribute Details

#version ⇒ Object (readonly)

Returns the value of attribute version.



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# File 'lib/omnizip/formats/rar/block_parser.rb', line 11

def version
  @version
end

Instance Method Details

#parse_file_block(io) ⇒ Models::RarEntry?

Parse file block and create entry

Parameters:

  • io (IO) —

    Input stream

Returns:



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# File 'lib/omnizip/formats/rar/block_parser.rb', line 24

def parse_file_block(io)
  if @version == 5
    parse_rar5_file_block(io)
  else
    parse_rar4_file_block(io)
  end
end

#skip_block(io, block_size) ⇒ Object

Skip to next block

Parameters:

  • io (IO) —

    Input stream

  • block_size (Integer) —

    Block size to skip



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# File 'lib/omnizip/formats/rar/block_parser.rb', line 36

def skip_block(io, block_size)
  io.read(block_size) if block_size.positive?
end