spotl.py

#!/usr/bin/env python

import httplib, re, sys
from urllib import urlencode

def get_spotl_url(uri):
    """
    Returns a spo.tl URL, given a Spotify track URI
    """
    #
    # Make sure we have a Spotify track URI
    #
    regex = re.compile(r'\bspotify:track:\S+\b')
    if regex.search(uri) == None:
        return ''
    #
    # Perform a HEAD request to get the shortened track URI
    #
    conn = httplib.HTTPConnection("spo.tl")
    conn.request("HEAD", "/shorten?%s" % urlencode({'link' : uri}))
    res = conn.getresponse()
    if res.status == 302:
        location = res.getheader('Location')
        path = location.split('/')[-1]
        return 'http://spo.tl/' + path
    return ''

if __name__ == '__main__':
    print(get_spotl_url(sys.argv[1]))