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#!/usr/bin/ruby1.8
require 'timeout'
require 'socket'
#
# This class is responsible for performing tests against a remote FTP server
#
#
class FTPTest
#
# Data passed from the JSON hash.
#
attr_reader :test_data
#
# The error text we return on failure.
#
attr_reader :error
#
# Save the data away.
#
def initialize( data )
@test_data = data
@error = nil
#
# Ensure we have a host to probe
#
if ( @test_data["target_host"].nil? )
@error = "Missing target for the test."
raise ArgumentError, @error
end
#
# Ensure we have a port to test.
#
if ( @test_data["test_port"].nil? )
@error = "Missing port for the test."
raise ArgumentError, @error
end
end
#
# Run the test.
#
# Return "true" on success
#
# Return "false" on failure.
#
# If the test fails the details should be retrieved from "error()".
#
def run_test
#
# Reset state from previous test.
#
@error = nil
#
# Get the hostname & port to test against.
#
host = @test_data["target_host"]
port = @test_data["test_port"]
puts "FTP testing host #{host}:#{port}" if ( @test_data['verbose'] )
begin
timeout( @test_data["timeout"] ) do
begin
socket = TCPSocket.new( host, port )
socket.puts( "QUIT")
banner = socket.gets(nil)
banner = banner[0,20]
socket.close()
if ( banner =~ /^220/ )
return true
else
@error = "Banner didn't report OK: #{banner}"
end
rescue
@error = "FTP exception on host #{host}:#{port} - #{$!}"
return false
end
end
rescue Timeout::Error => e
@error = "Timed-out connecting #{e}"
return false
end
@error = "Misc. failure."
return false
end
#
# Return the error.
#
def error
return @error
end
end
#
# Sample test, for testing.
#
if __FILE__ == $0 then
#
# Sample data.
#
test = {
"target_host" => "mirror.bytemark.co.uk",
"test_type" => "ftp",
"test_port" => 21,
"verbose" => 1,
"timeout" => 4,
"test_alert" => "The FTP server no worky",
}
#
# Run the test.
#
tst = FTPTest.new( test )
if ( tst.run_test )
puts "TEST OK"
else
puts "TEST FAILED"
puts tst.error()
end
end
|
