更新新增三个模块

backend/utils/render.py

@@ -0,0 +1,22 @@
+"""
+模板渲染：支持加密 HTML 解密后渲染
+"""
+import os
+from flask import render_template, render_template_string
+
+BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+
+
+def render_html(template_name: str, **context):
+    """读取 HTML 模板：若为加密文件则先解密，再渲染。未加密或解密失败时按明文渲染。"""
+    path = os.path.join(BASE_DIR, "web_source", template_name)
+    if not os.path.isfile(path):
+        return render_template(template_name, **context)
+    with open(path, "rb") as f:
+        raw = f.read()
+    try:
+        from html_crypto import decrypt
+        content = decrypt(raw).decode("utf-8")
+    except Exception:
+        content = raw.decode("utf-8", errors="replace")
+    return render_template_string(content, **context)