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# $Id: smtp.rb,v 1.2 2006/10/05 01:36:52 koheik Exp $
require 'socket'
$:.unshift(File.dirname(__FILE__) + '/../lib')
require 'net/ntlm'
$user = nil
$passwd = nil
$host = "localhost"
$port = 25
$debug = true
def readline(f)
(l = f.gets).chomp!
puts "srv> " + l if $debug
l
end
def writeline(f, str)
puts "cli> " + str if $debug
f.print str + "\r\n"
end
def main
s = TCPSocket.new($host, $port)
# greetings
readline s
writeline s, "EHLO #{$host}"
while(line = readline(s))
login = true if /^250-AUTH=LOGIN/ =~ line
ntlm = true if /^250-AUTH.+NTLM.*/ =~ line
break if /^250 OK/ =~ line
end
unless ntlm and login
raise RuntimeError, "it looks like the server doesn't support NTLM Login"
end
# send Type1 Message
t1 = Net::NTLM::Message::Type1.new()
writeline s, "AUTH NTLM " + t1.encode64
# receive Type2 Message, i hope
line = readline s
unless /334 (.+)/ =~ line
raise RuntimeError, "i don't recognize this: #{line}"
end
t2 = Net::NTLM::Message.decode64($1)
unless $user and $passwd
target = t2.target_name
target = Net::NTLM::decode_utf16le(target) if t2.has_flag?(:UNICODE)
puts "Target: #{target}"
print "User name: "
($user = $stdin.readline).chomp!
print "Password: "
($passwd = $stdin.readline).chomp!
end
# send Type3 Message
t3 = t2.response({:user => $user, :password => $passwd}, {:ntlmv2 => true})
writeline s, t3.encode64
# and result is...
line = readline s
unless /^235(.+)Authentication successful./i =~ line
raise RuntimeError, "sorry, authentication failed."
end
# do real job here like...
# from = $user
# to = "billg"
# writeline s, "MAIL FROM: #{from}"
# readline s
# writeline s, "RCPT TO: #{to}"
# readline s
# writeline s, "DATA"
# readline s
# writeline s, "From: #{from}"
# writeline s, "To: #{to}"
# writeline s, "blab blab blab..."
# writeline s, "#{from}"
# writeline s, "."
# readline s
# say bye
writeline s, "QUIT"
s.close
end
main
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