rewrited logic structure

group_system/http/static_files.py

@@ -0,0 +1,43 @@
+"""静态页面与资源文件服务。"""
+
+from __future__ import annotations
+
+from http import HTTPStatus
+from http.server import BaseHTTPRequestHandler
+from pathlib import Path
+
+from group_system.config import STATIC_DIR
+
+CONTENT_TYPES = {
+    ".html": "text/html; charset=utf-8",
+    ".htm": "text/html; charset=utf-8",
+    ".css": "text/css; charset=utf-8",
+    ".js": "text/javascript; charset=utf-8",
+    ".mjs": "text/javascript; charset=utf-8",
+    ".svg": "image/svg+xml",
+    ".png": "image/png",
+}
+
+
+def send_text(handler: BaseHTTPRequestHandler, status: int, text: str) -> None:
+    body = text.encode("utf-8")
+    handler.send_response(status)
+    handler.send_header("Content-Type", "text/plain; charset=utf-8")
+    handler.send_header("Content-Length", str(len(body)))
+    handler.end_headers()
+    handler.wfile.write(body)
+
+
+def serve_file(handler: BaseHTTPRequestHandler, path: Path) -> None:
+    path = path if path.is_absolute() else STATIC_DIR / path
+    if not path.is_file():
+        send_text(handler, HTTPStatus.NOT_FOUND, "Not Found")
+        return
+    content_type = CONTENT_TYPES.get(path.suffix.lower(), "application/octet-stream")
+    content = path.read_bytes()
+    handler.send_response(HTTPStatus.OK)
+    handler.send_header("Content-Type", content_type)
+    handler.send_header("Content-Length", str(len(content)))
+    handler.send_header("Cache-Control", "no-cache")
+    handler.end_headers()
+    handler.wfile.write(content)