Ruby/Metasploit NoMethodError undefined method `code' - ruby

Question

Forgive me guys, new to Ruby, actually this is the first lang I have taken up, so be gentle with me ok?
Writing a mod for Metasploit which will scan a system or net for 302/500 errors on the file ScriptResource.axd which can be used in further attacks.
It starts, it runs, then crashes with error:
msf auxiliary(Scriptresource) > exploit
[*] hxxp://192.168.0.18:80 hxxp://192.168.0.18:80/scriptresource.axd?d=AAAAAAAAAAAAAAAAAAAAAA1 302
[*] hxxp://192.168.0.5:80 hxxp://192.168.0.5:80/scriptresource.axd?d=AAAAAAAAAAAAAAAAAAAAAA1 302
[*] hxxp://192.168.0.106:80 hxxp://192.168.0.106:80/scriptresource.axd?d=AAAAAAAAAAAAAAAAAAAAAA1 302
[*] hxxp://192.168.0.4:80 hxxp://192.168.0.4:80/scriptresource.axd?d=AAAAAAAAAAAAAAAAAAAAAA1 302
[*] hxxp://192.168.0.43:80 hxxp://192.168.0.43:80/scriptresource.axd?d=AAAAAAAAAAAAAAAAAAAAAA1 500
[*] hxxp://192.168.0.236:80 hxxp://192.168.0.236:80/scriptresource.axd?d=AAAAAAAAAAAAAAAAAAAAAA1 500
[*] hxxp://192.168.0.238:80 hxxp://192.168.0.238:80/scriptresource.axd?d=AAAAAAAAAAAAAAAAAAAAAA1 500
[-] Auxiliary failed: NoMethodError undefined method `code' for nil:NilClass
[-] Call stack:
[-] /root/.msf4/modules/auxiliary/scanner/http/Scriptresource.rb:50:in `block in run_host'
[-] /root/.msf4/modules/auxiliary/scanner/http/Scriptresource.rb:39:in `each'
[-] /root/.msf4/modules/auxiliary/scanner/http/Scriptresource.rb:39:in `run_host'
[-] /opt/metasploit-4.2.0/msf3/lib/msf/core/auxiliary/scanner.rb:92:in `block in run'
[-] /opt/metasploit-4.2.0/msf3/lib/msf/core/thread_manager.rb:64:in `call'
[-] /opt/metasploit-4.2.0/msf3/lib/msf/core/thread_manager.rb:64:in `block in
Here is the Program:
require 'rex/proto/http'
require 'msf/core'
class Metasploit3 < Msf::Auxiliary
include Msf::Exploit::Remote::HttpClient
include Msf::Auxiliary::WmapScanDir
include Msf::Auxiliary::Scanner
def initialize(info = {})
super(update_info(info,
'Name' => 'ScriptResource Scanner',
'Description' => %q{
This module Will scan for the 302/500 response codes associated
with ScriptResource.axd on a traget machine or network. This
file is required for ASP.Net Oracle Padding attack.
},
'Author' => [ 'MyChickenNinja' ],
'License' => BSD_LICENSE,))
register_options(
[
OptString.new('PATH', [ true, "The path to identify vulnerable files", '/',
]
)
], self.class)
end
def run_host(ip)
cypher = ['scriptresource.axd?d=AAAAAAAAAAAAAAAAAAAAAA1']
conn = false
spath = datastore['PATH']
cypher.each do |cy|
queue << cy.strip
begin
crypt = cy
res = send_request_cgi({
'uri' => spath+crypt,
'method' => 'GET',
'ctype' => 'text/plain'
}, 20)
if res.code == 500 or res.code == 302
print_status("#{wmap_base_url} #{wmap_base_url}#{spath}#{crypt} #{res.code}")
end
rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
conn = false
rescue ::Timeout::Error, ::Errno::EPIPE
end
end
end
end
Now its referring to the "res.code". I see that, but I was under the impression that Metasploit handled res.code. Isn't this confirmed by the fact I am getting res.code output before the program crashes? So now I am at a loss... Yes I looked at other Questions on the site here but usually the answer is that they are not defined. But Metasplot defines this variable.. So... ??
As I said, I'm new to Ruby so if I can get a kinda detailed answer, I would be greatly appreciate it.
Thanks!

Answer 1

Figured it out.
Just needed a blank rescue to handle nil responses.