#!/usr/bin/env python3.9

# Modified from ew0k's gemcall
# Requires Python 3.7+

import socket
import urllib.parse as up
import ssl
import sys
import argparse

up.uses_relative.append("gemini")
up.uses_netloc.append("gemini")

ANTENNA_PING_URL = 'gemini://warmedal.se/~antenna/submit'


def call_gemini(url, cert=None, key=None):
    parsed = up.urlparse(url).encode('idna')

    context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
    context.minimum_version = ssl.TLSVersion.TLSv1_2
    context.check_hostname = False
    context.verify_mode = ssl.CERT_NONE
    if (cert and key):
        context.load_cert_chain(cert, key)

    sock = socket.create_connection((parsed.hostname, parsed.port or 1965))
    ssock = context.wrap_socket(sock, server_hostname=parsed.hostname)
    ssock.sendall((up.urlunparse(parsed).decode('UTF-8')+'\r\n').encode('ascii'))
    res = ssock.makefile(mode="rb").read().decode('UTF-8')

    # get the first line
    try:
        header = res.splitlines()[0]
        resp_code = int(header.split(' ')[0])
    except:
        return False
    else:
        if resp_code >= 20 and resp_code < 30:
            return True
        else:
            return False


def ping_antenna(url, antenna_url):
    return call_gemini(f'{antenna_url}?{url}')


def main():
    parser = argparse.ArgumentParser('antenna-ping')
    parser.add_argument('url', nargs='+', help='URL of the atom feed to send to Antenna')
    parser.add_argument('--antenna-url', default=ANTENNA_PING_URL)

    args = parser.parse_args()

    for url in args.url:
        print(f'Sending {url}... ', end='')
        if ping_antenna(url, antenna_url=args.antenna_url):
            print('success')
        else:
            print('failed')


if __name__ == '__main__':
    sys.exit(main() or 0)