Add adaptive progression and item expansion

tools/serve_game.py

@@ -0,0 +1,64 @@
+#!/usr/bin/env python3
+"""Serve the browser game without exposing tools, secrets, or raw assets."""
+
+from __future__ import annotations
+
+import argparse
+import posixpath
+from functools import partial
+from http.server import SimpleHTTPRequestHandler, ThreadingHTTPServer
+from pathlib import Path
+from urllib.parse import unquote, urlsplit
+
+
+ROOT = Path(__file__).resolve().parent.parent
+PUBLIC_FILES = {"/", "/index.html"}
+PUBLIC_PREFIXES = ("/assets/", "/css/", "/js/", "/mp3-music/", "/test/")
+PRIVATE_PREFIXES = ("/assets/raw", "/tools")
+
+
+class GameRequestHandler(SimpleHTTPRequestHandler):
+    def is_public(self) -> bool:
+        raw_path = unquote(urlsplit(self.path).path)
+        if "\\" in raw_path:
+            return False
+        path = posixpath.normpath(raw_path)
+        segments = [segment for segment in path.split("/") if segment]
+        if any(segment.startswith(".") for segment in segments):
+            return False
+        if path in PUBLIC_FILES:
+            return True
+        if path.startswith(PRIVATE_PREFIXES):
+            return False
+        return path.startswith(PUBLIC_PREFIXES)
+
+    def list_directory(self, path: str):
+        self.send_error(404)
+        return None
+
+    def do_GET(self) -> None:
+        if not self.is_public():
+            self.send_error(404)
+            return
+        super().do_GET()
+
+    def do_HEAD(self) -> None:
+        if not self.is_public():
+            self.send_error(404)
+            return
+        super().do_HEAD()
+
+
+def main() -> None:
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument("--bind", default="127.0.0.1")
+    parser.add_argument("--port", type=int, default=8123)
+    args = parser.parse_args()
+    handler = partial(GameRequestHandler, directory=str(ROOT))
+    with ThreadingHTTPServer((args.bind, args.port), handler) as server:
+        print(f"MeatSlicer running at http://{args.bind}:{args.port}")
+        server.serve_forever()
+
+
+if __name__ == "__main__":
+    main()