Module: Moneta::Transformer::Helper Private

Extended by:
Helper
Included in:
Helper
Defined in:
lib/moneta/transformer/helper.rb,
lib/moneta/transformer/helper/bson.rb

This module is part of a private API. You should avoid using this module if possible, as it may be removed or be changed in the future.

Defined Under Namespace

Modules: BSON

Instance Method Summary collapse

Instance Method Details

#bunzip2(value) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/moneta/transformer/helper.rb', line 44

def bunzip2(value)
  ::RBzip2.default_adapter::Decompressor.new(::StringIO.new(value)).read
end

#bzip2(value) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/moneta/transformer/helper.rb', line 36

def bzip2(value)
  io = ::StringIO.new
  bz = ::RBzip2.default_adapter::Compressor.new(io)
  bz.write(value)
  bz.close
  io.string
end

#escape(value) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/moneta/transformer/helper.rb', line 7

def escape(value)
  value.gsub(/[^a-zA-Z0-9_-]+/) { |match| '%' + match.unpack('H2' * match.bytesize).join('%').upcase }
end

#hmacsign(value, secret) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/moneta/transformer/helper.rb', line 20

def hmacsign(value, secret)
  OpenSSL::HMAC.digest(OpenSSL::Digest.new('sha256'), secret, value) << value
end

#hmacverify(value, secret) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/moneta/transformer/helper.rb', line 15

def hmacverify(value, secret)
  hash, value = value[0..31], value[32..-1]
  value if hash == OpenSSL::HMAC.digest(OpenSSL::Digest.new('sha256'), secret, value)
end

#spread(value) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/moneta/transformer/helper.rb', line 32

def spread(value)
  ::File.join(value[0..1], value[2..-1])
end

#truncate(value, maxlen) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/moneta/transformer/helper.rb', line 24

def truncate(value, maxlen)
  if value.size >= maxlen
    digest = Digest::MD5.hexdigest(value)
    value = value[0, maxlen - digest.size] << digest
  end
  value
end

#unescape(value) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/moneta/transformer/helper.rb', line 11

def unescape(value)
  value.gsub(/(?:%[0-9a-fA-F]{2})+/) { |match| [match.delete('%')].pack('H*') }
end