OUI lookup (requires inet access)

oui.py

#!/usr/bin/env python

import re
import sys
import urllib2
import HTMLParser

uri          = 'http://aruljohn.com/mac'
headers      = {'User-Agent': 'Mozilla/4.0 (compatible; MSIE 5.5; Windows NT)'}
ouiTag       = None

class HtParse(HTMLParser.HTMLParser):
    def qcheck(self, var):
        try: 
            if eval(var):
                return True
        except:
            return False

    def handle_starttag(self, tag, attrs):
        if tag == 'table':
            # See if we are the content-table class
            for bit in attrs:
                if bit[0] == 'class' and bit[1] == 'content-table':
                    self.tableFlag = True
        elif tag == 'td' and self.qcheck('self.tableFlag'):
            self.dataOne = True

    def handle_endtag(self, tag):
        if tag == 'table' and self.qcheck('self.tableFlag'):
            self.tableFlag = False

    def handle_data(self, data):
        global ouiTag # Ensure we've got this data, I hate globals but hey.

        if self.qcheck('self.tableFlag'):
            if self.qcheck('self.dataOne') and not self.qcheck('self.dataTwo'):
                if data.find(ouiTag):
                    self.dataOne = False
                    self.dataTwo = True
            if self.qcheck('self.dataOne') and self.qcheck('self.dataTwo'):
                print data
                self.dataTwo   = False

for pos in range(1, len(sys.argv)):
    mac      = re.sub(':', '', sys.argv[pos]).upper()
    ouiTag   = sys.argv[pos][0:8]

    request  = urllib2.Request('%s/%s' % (uri, mac), None, headers)
    response = urllib2.urlopen(request)
    parser   = HtParse()

    parser.feed(response.read())

    sys.exit(0)