#!/usr/bin/env python3

import urllib.request
import sys
import os

sys.stderr.buffer.write(b'%s' % bytes(os.environ.get("QUERY_STRING", "No Query String in url"), 'utf-8'))

link = 'https://www.libravatar.org/avatar/%s' % os.environ.get("QUERY_STRING", 'x'*32)
sys.stderr.buffer.write(b'%s' % bytes(link, 'utf-8'))

data = None
with urllib.request.urlopen(link) as f:
    data = f.read()

for header in f.headers._headers:
    if header[0] == 'Content-Type':
        sys.stdout.buffer.write(b"%s: %s\n\n" % (bytes(header[0], 'utf-8'), bytes(header[1], 'utf-8')))
        sys.stdout.flush()
        break

sys.stdout.buffer.write(data)