X-Git-Url: https://git.mar77i.info/?a=blobdiff_plain;f=hub%2Fapp.py;h=3d701540fde74bc1bb262743d1876e0749382646;hb=f591748910835b1a11c3765723d9d30193a5bd26;hp=24212d0972581d1e6e7bef054074c80f8b229c6b;hpb=d23acd0d6d03d822e4505c64f71587f55e8dc2b6;p=hublib diff --git a/hub/app.py b/hub/app.py index 24212d0..3d70154 100644 --- a/hub/app.py +++ b/hub/app.py @@ -1,16 +1,104 @@ +import socket +import sys from argparse import ArgumentParser +from base64 import urlsafe_b64encode +from hashlib import pbkdf2_hmac +from pathlib import Path +from secrets import token_urlsafe +from subprocess import run +from traceback import print_exception +from typing import Generator +from urllib.parse import urlunsplit -from falcon.asgi import App +from falcon.asgi import App as FalconApp from falcon.constants import MEDIA_HTML +from jinja2 import Environment, FileSystemLoader, select_autoescape +from redis.asyncio import StrictRedis +from uvicorn import Config, Server -from .cryptresource import CryptResource +from .static import HubApp, TemplateTreeFileApp -def get_app(): - app = App(media_type=MEDIA_HTML) +class App(TemplateTreeFileApp, FalconApp): + @classmethod + def scan_files(cls, base_dir: Path) -> Generator[Path]: + for path in base_dir.iterdir(): + if not path.is_dir() and not cls.is_ignored_filename(path): + yield path + + def scramble(self, value: str | bytes) -> str: + if isinstance(value, str): + value = value.encode() + secret = self.secret + if isinstance(secret, str): + secret = secret.encode() + return urlsafe_b64encode( + pbkdf2_hmac("sha512", value, secret, 221100) + ).rstrip(b"=").decode("ascii") + + def uri_tail(self, path: Path) -> str: + return self.scramble(super().uri_tail(path)) + + def __init__(self, base_dir: Path, secret: str, **kwargs): + from .utils import get_redis_pass + + self.secret = secret or token_urlsafe(64) + kwargs.setdefault("media_type", MEDIA_HTML) + FalconApp.__init__(self, **kwargs) + TemplateTreeFileApp.__init__( + self, self, base_dir, "/derp", "root" + ) + self.env = Environment( + loader=FileSystemLoader(self.base_dir), + autoescape=select_autoescape(), + extensions=["hub.utils.StaticTag"], + ) + self.hubapps = {} + self.conn = StrictRedis( + username="default", password=get_redis_pass("/etc/redis/redis.conf") + ) + for base_dir in self.base_dir.iterdir(): + if base_dir.is_dir() and not self.is_ignored_filename(base_dir): + self.hubapps[base_dir.name] = HubApp( + self, base_dir, base_uri=f"/derp/{base_dir.name}" + ) + self.add_error_handler(Exception, self.print_exception) + + async def print_exception(self, req, resp, ex, params) -> None: + print_exception(*sys.exc_info()) + + +class HubServer(Server): + def __init__(self, *args, browser, **kwargs): + self.browser = browser + super().__init__(*args, **kwargs) + + async def startup(self, sockets: list[socket.socket] | None = None) -> None: + await super().startup(sockets) + root_app = self.config.loaded_app.app + print("Secret:", root_app.secret) + for uri, file in root_app.files_per_uris.items(): + if file.name == "index.html": + break + else: + raise ValueError("Root page not found!") + host, port, ssl = self.config.host, self.config.port, bool(self.config.ssl) + if port and port != (80, 443)[ssl]: + host = f"{host}:{port}" + url = urlunsplit((f"http{'s'[:ssl]}", host, uri, "", "")) + print("URL:", url) + if self.browser: + run([self.browser, url]) + + +async def main(): ap = ArgumentParser() ap.add_argument("--secret") + ap.add_argument("--browser", default="xdg-open") args = ap.parse_args() - cr = CryptResource(args.secret) - cr.register_on(app) - return app + app = App(Path(__file__).parents[1] / "webroot", args.secret) + await app.conn.set("client_id", 0) + config = Config(app, port=5000, log_level="info") + config.setup_event_loop() + hs = HubServer(config, browser=args.browser) + await hs.serve()