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require 'net/smtp'
module Custodian
module ProtocolTest
class SMTPRelayTest < TCPTest
# save away state from the configuration line.
def initialize( line )
@line = line
@host = line.split( /\s+/)[0]
if ( line =~ /must\s+not\s+run\s+/ )
@inverted = true
else
@inverted = false
end
end
# run the test for open relays of SMTP protocol - return true on success.
# false on fail.
# this requires love, just trying to get it to run for now..
def run_test
@error = nil # for if we've run the test before
message = "Subject: SMTP Relay check\nThis is a test for OPEN SMTP relays."
begin
Net::SMTP.start(@host,25) do |smtp|
sent = smtp.send_message message, "noreply@bytemark.co.uk", "noreply@bytemark.co.uk"
@status = sent.status.to_s
if @inverted === true
@success = true
@failure = false
else
@success = false
@failure = true
end
if @status === "250" #and @inverted == true
@error = "NOT OK: message sent on #{@host} with status #{@status}"
return @success
else
@error = "OK: message not sent on #{@host} with status #{@status}"
return @failure
end
end # Net SMTP
rescue Exception => ex # for if we fail to send a message; this is a good thing
@error = "OK: Timed out or connection refused on #{@host} with status #{@status}"
return @failure
end
end
# if the test failed return a suitable error message
def error
@error
end
# register ourselves with the factory so we're invoked for lines of the form:
# TARGET must (not) run xxx otherwise ...
register_test_type "smtprelay"
end
end
end
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