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#!/usr/bin/env python3
# Copyright (C) 2021 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
import os
import socket
import ssl
import sys
import threading
from http.server import ThreadingHTTPServer, SimpleHTTPRequestHandler
from subprocess import run
import netifaces as ni
import argparse
# This script implements a web server which serves the content of the current
# working directory using the http and secure https protocols. The server is
# intented to be used as a development server.
#
# Https certificates are generated using the 'mkcert' utility. You should generate
# a certificate authority first, see the mkcert documentation at
# https://github.com/FiloSottile/mkcert
#
# The server sets the COOP and COEP headers, which are required to enable multithreading.
def main():
parser = argparse.ArgumentParser(
description="Run a minimal HTTP(S) server to test Qt for WebAssembly applications.",
formatter_class=argparse.ArgumentDefaultsHelpFormatter,
)
parser.add_argument(
"--port",
"-p",
help="Port on which to listen for HTTP and HTTPS (PORT + 1)",
type=int,
default=8000,
)
parser.add_argument(
"--address",
"-a",
help="Address on which to listen for HTTP and HTTPS, in addition to localhost",
action="append",
)
parser.add_argument(
"--all",
help="Start web server which binds to all local interfaces, instead of locahost only",
action="store_true",
)
parser.add_argument(
"path", help="The directory to serve", nargs="?", default=os.getcwd()
)
args = parser.parse_args()
http_port = args.port
https_port = http_port + 1
all_addresses = args.all
cmd_addresses = args.address or []
serve_path = args.path
addresses = ["127.0.0.1"] + cmd_addresses
if all_addresses:
addresses += [
addr[ni.AF_INET][0]["addr"]
for addr in map(ni.ifaddresses, ni.interfaces())
if ni.AF_INET in addr
]
addresses = sorted(set(addresses)) # deduplicate
# Generate a https certificate for "localhost" and selected addresses. This
# requires that the mkcert utility is installed, and that a certificate
# authority key pair (rootCA-key.pem and rootCA.pem) has been generated. The
# certificates are written to /tmp, where the https server can find them
# later on.
cert_base_path = "/tmp/qtwasmserver-certificate"
cert_file = f"{cert_base_path}.pem"
cert_key_file = f"{cert_base_path}-key.pem"
addresses_string = f"localhost {' '.join(addresses)}"
ret = run(
f"mkcert -cert-file {cert_file} -key-file {cert_key_file} {addresses_string}",
shell=True,
)
has_certificate = ret.returncode == 0
if not has_certificate:
print(
"Warning: mkcert is not installed or was unable to create a certificate. Will not start HTTPS server."
)
# Http request handler which sends headers required to enable multithreading using SharedArrayBuffer.
class MyHTTPRequestHandler(SimpleHTTPRequestHandler):
def __init__(self, request, client_address, server):
super().__init__(request, client_address, server, directory=serve_path)
def end_headers(self):
self.send_header("Cross-Origin-Opener-Policy", "same-origin")
self.send_header("Cross-Origin-Embedder-Policy", "require-corp")
self.send_header("Cross-Origin-Resource-Policy", "cross-origin")
SimpleHTTPRequestHandler.end_headers(self)
# Serve cwd from http(s)://address:port, with certificates from certdir if set
def serve_on_thread(address, port, secure):
httpd = ThreadingHTTPServer((address, port), MyHTTPRequestHandler)
if secure:
httpd.socket = ssl.wrap_socket(
httpd.socket,
certfile=cert_file,
keyfile=cert_key_file,
server_side=True,
)
thread = threading.Thread(target=httpd.serve_forever)
thread.start()
# Start servers
print(f"Serving at:")
for address in addresses:
print(f" http://{address}:{http_port}")
serve_on_thread(address, http_port, False)
if has_certificate:
for address in addresses:
print(f" https://{address}:{https_port}")
serve_on_thread(address, https_port, True)
if __name__ == "__main__":
main()
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