#!/usr/bin/env python3

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


def printhelp():
    print('gemcall -u <url> [-c <clientcert> -k <clientkey>]')


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

url = ''
clientcert = ''
clientkey = ''

try:
    opts, args = getopt.getopt(sys.argv[1:], "hu:c:k:", ["help", "url=", "clientcert=", "clientkey="])
except getopt.GetoptError:
    printhelp()
    sys.exit(2)

for opt, arg in opts:
    if opt in ("-h", "--help"):
        printhelp()
        sys.exit()
    elif opt in ("-c", "--clientcert"):
        clientcert = arg
    elif opt in ("-k", "--clientkey"):
        clientkey = arg
    elif opt in ("-u", "--url"):
        url = arg

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 (clientcert and clientkey):
    context.load_cert_chain(clientcert, clientkey)

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"))
print(ssock.makefile(mode="rb").read().decode('UTF-8'))