import sys
import requests
import re



def check_for_redirects(url):
    try:
        r = requests.get(url if url.startswith('http') else "http://%s" % url, allow_redirects=True, timeout=7)
        if strip_url(r.url) == strip_url(url):
            return url
        else:
            return strip_url(r.url)
    except requests.exceptions.Timeout:
        return 'expired'
    except requests.exceptions.ConnectionError:
        return 'expired'

def strip_url(url):
    url = url.replace("https://", "")
    url = url.replace("http://", "")
    try:
        url = re.split("www\d*.", url)[1]
    except:
        pass
    first_slash = url.find('/')
    if first_slash != -1:
        url = url[:first_slash]
    return url.strip()


def check_domains(urls, f):
    for url in urls:
        redirect_url = check_for_redirects(url)
        print("%s - %s" % (url, redirect_url))
        f.write("%s - %s" % (url, redirect_url) + '\n')


if __name__ == '__main__':
    fname = 'domain_list.txt'
    out1 = open("out1", "w")
    try:
        fname = sys.argv[1]
    except IndexError:
        pass
    urls = (l.strip() for l in open(fname).readlines())
    check_domains(urls, out1)
    out1.close()