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: datalife_preview_exec.rb
    path of file: ./repos/metasploit-framework/modules/exploits/unix/webapp
    
    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
##

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

  include Msf::Exploit::Remote::HttpClient

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'DataLife Engine preview.php PHP Code Injection',
      'Description'    => %q{
          This module exploits a PHP code injection vulnerability DataLife Engine 9.7.
        The vulnerability exists in preview.php, due to an insecure usage of preg_replace()
        with the e modifier, which allows to inject arbitrary php code, when there is a
        template installed which contains a [catlist] or [not-catlist] tag, even when the
        template isn't in use currently. The template can be configured with the TEMPLATE
        datastore option.
      },
      'Author'         =>
        [
          'EgiX', # Vulnerability discovery
          'juan vazquez' # Metasploit module
        ],
      'License'        => MSF_LICENSE,
      'References'     =>
        [
          [ 'CVE', '2013-1412' ],
          [ 'OSVDB', '89662' ],
          [ 'EDB', '24438' ],
          [ 'BID', '57603' ],
          [ 'URL', 'http://karmainsecurity.com/KIS-2013-01' ],
          [ 'URL', 'http://dleviet.com/dle/bug-fix/3281-security-patches-for-dle-97.html' ]
        ],
      'Privileged'     => 
    
  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'DataLife Engine preview.php PHP Code Injection',
      'Description'    => %q{
          This module exploits a PHP code injection vulnerability DataLife Engine 9.7.
        The vulnerability exists in preview.php, due to an insecure usage of preg_replace()
        with the e modifier, which allows to inject arbitrary php code, when there is a
        template installed which contains a [catlist] or [not-catlist] tag, even when the
        template isn't in use currently. The template can be configured with the TEMPLATE
        datastore option.
      },
      'Author'         =>
        [
          'EgiX', # Vulnerability discovery
          'juan vazquez' # Metasploit module
        ],
      'License'        => MSF_LICENSE,
      'References'     =>
        [
          [ 'CVE', '2013-1412' ],
          [ 'OSVDB', '89662' ],
          [ 'EDB', '24438' ],
          [ 'BID', '57603' ],
          [ 'URL', 'http://karmainsecurity.com/KIS-2013-01' ],
          [ 'URL', 'http://dleviet.com/dle/bug-fix/3281-security-patches-for-dle-97.html' ]
        ],
      'Privileged'     => false,
      'Platform'       => ['php'],
      'Arch'           => ARCH_PHP,
      'Payload'        =>
        {
          'Keys'   => ['php']
        },
      'DisclosureDate' => '2013-01-28',
      'Targets'        => [ ['DataLife Engine 9.7', { }], ],
      'DefaultTarget'  => 0
      ))

    register_options(
      [
        OptString.new('TARGETURI', [ true, "The base path to the web application", "/"]),
        OptString.new('TEMPLATE', [ true, "Template with catlist or not-catlit tag", "Default"])
      ])
  end