#!/usr/bin/python

import sgmllib
import sys

class URLLister(sgmllib.SGMLParser):        # Simple SGML Parser for html href extraction
    def reset(self):
        sgmllib.SGMLParser.reset(self)
        self.urls = []

    def start_a(self, attrs):
        href = [v for k, v in attrs if k=='href']
        if href:
            self.urls.extend(href)



f = open(sys.argv[1],"r").read()
parser = URLLister()
parser.feed(f)
parser.close()
for url in parser.urls:
    if url.find("http") >= 0:
        print url