jvazquez-r7
61 lines
1.8 KiB
Ruby
61 lines
1.8 KiB
Ruby
# -*- coding: binary -*-
|
|
|
|
module Rex
|
|
module Java
|
|
module Serialization
|
|
module Model
|
|
# This class provides a Java Reference representation.
|
|
class Reference < Element
|
|
|
|
# @!attribute contents
|
|
# @return [Fixnum] The stream handle being referenced
|
|
attr_accessor :handle
|
|
|
|
# @param stream [Rex::Java::Serialization::Model::Stream] the stream where it belongs to
|
|
def initialize(stream = nil)
|
|
super(stream)
|
|
self.handle = 0
|
|
end
|
|
|
|
# Deserializes a Rex::Java::Serialization::Model::Reference
|
|
#
|
|
# @param io [IO] the io to read from
|
|
# @return [self] if deserialization succeeds
|
|
# @raise [Rex::Java::Serialization::DecodeError] if deserialization doesn't succeed
|
|
def decode(io)
|
|
handle_raw = io.read(4)
|
|
unless handle_raw && handle_raw.length == 4
|
|
raise Rex::Java::Serialization::DecodeError, 'Failed to unserialize Reference'
|
|
end
|
|
|
|
self.handle = handle_raw.unpack('N')[0]
|
|
|
|
self
|
|
end
|
|
|
|
# Serializes the Rex::Java::Serialization::Model::Reference
|
|
#
|
|
# @return [String] if serialization succeeds
|
|
# @raise [Rex::Java::Serialization::EncodeError] if serialization doesn't succeed
|
|
def encode
|
|
if handle < BASE_WIRE_HANDLE
|
|
raise Rex::Java::Serialization::EncodeError, 'Failed to serialize Reference'
|
|
end
|
|
|
|
encoded = ''
|
|
encoded << [handle].pack('N')
|
|
|
|
encoded
|
|
end
|
|
|
|
# Creates a print-friendly string representation
|
|
#
|
|
# @return [String]
|
|
def to_s
|
|
"0x#{handle.to_s(16)}"
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end |