show_results.py

#!/usr/bin/env python3

import http.server
import multiprocessing
import os
import posixpath
import time
import webbrowser
from pathlib import Path
from urllib.parse import unquote

import click

ROOT = Path(__file__).resolve().parent.parent
TEST_RESULT_PATH = ROOT / "tests" / "ui_tests" / "reporting" / "reports" / "test"


class NoCacheRequestHandler(http.server.SimpleHTTPRequestHandler):
    def end_headers(self) -> None:
        self.send_header("Cache-Control", "no-cache, no-store, must-revalidate")
        self.send_header("Pragma", "no-cache")
        self.send_header("Expires", "0")
        return super().end_headers()

    def log_message(self, format, *args) -> None:
        pass

    def translate_path(self, path: str) -> str:
        # XXX
        # Copy-pasted from Python 3.8 BaseHTTPRequestHandler so that we can inject
        # the `directory` parameter.
        # Otherwise, to keep compatible with 3.6, we'd need to mess with CWD. Which is
        # unstable when we expect it to be erased and recreated under us.
        path = path.split("?", 1)[0]
        path = path.split("#", 1)[0]
        # Don't forget explicit trailing slash when normalizing. Issue17324
        trailing_slash = path.rstrip().endswith("/")
        try:
            path = unquote(path, errors="surrogatepass")
        except UnicodeDecodeError:
            path = unquote(path)
        path = posixpath.normpath(path)
        words = path.split("/")
        words = filter(None, words)
        path = str(TEST_RESULT_PATH)  # XXX this is the only modified line
        for word in words:
            if os.path.dirname(word) or word in (os.curdir, os.pardir):
                # Ignore components that are not a simple file/directory name
                continue
            path = os.path.join(path, word)
        if trailing_slash:
            path += "/"
        return path


def launch_http_server(port: int) -> None:
    http.server.test(HandlerClass=NoCacheRequestHandler, bind="localhost", port=port)  # type: ignore [test is defined]


@click.command()
@click.option("-p", "--port", type=int, default=8000)
def main(port: int):
    httpd = multiprocessing.Process(target=launch_http_server, args=(port,))
    httpd.start()
    time.sleep(0.5)
    webbrowser.open(f"http://localhost:{port}/")
    httpd.join()


if __name__ == "__main__":
    main()