add a bunch of typehints

[hublib] / hub / app.py

diff --git a/hub/app.py b/hub/app.py
index 24212d0972581d1e6e7bef054074c80f8b229c6b..3d701540fde74bc1bb262743d1876e0749382646 100644 (file)
--- 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()