#!/usr/bin/env python3

import cgi
import cgitb
import subprocess

cgitb.enable()

def fetch_site(url):
    data = subprocess.check_output(['w3m', '-dump', url])
    return output.decode()

def format_output(url, data):
    with open('template.html', 'r') as f:
        template = f.read()

    return template.format(url, data)

def print_headers():
    print('Content-Type: text/html; charset=utf8')
    print()

def main():
    form = cgi.FieldStorage()

    if 'u' not in form or len(form['u']) == 0:
        print('Status: 400 Bad Request')
        print()
        print('Missing required field')
        print()
        return

    url = form['u']
    data = fetch_site(url)

    print(format_output(url, data))

if __name__ == '__main__':
    main()