Fix template rendering with Starlette 1.x

server.py

@@ -570,8 +570,9 @@ async def metrics():
 @app.get("/", response_class=HTMLResponse)
 async def read_index(request: Request):
     return templates.TemplateResponse(
-        "index.html",
-        {"request": request, "restrict_class": "", "restrict_student": ""},
+        request=request,
+        name="index.html",
+        context={"restrict_class": "", "restrict_student": ""},
     )
 
 
@@ -581,8 +582,9 @@ async def read_class(request: Request, class_name: str):
     if not real_class:
         return HTMLResponse("Class not found", status_code=404)
     return templates.TemplateResponse(
-        "index.html",
-        {"request": request, "restrict_class": real_class, "restrict_student": ""},
+        request=request,
+        name="index.html",
+        context={"restrict_class": real_class, "restrict_student": ""},
     )
 
 
@@ -592,9 +594,9 @@ async def read_student(request: Request, student_token: str):
     if not real_class or not real_student:
         return HTMLResponse("Student not found", status_code=404)
     return templates.TemplateResponse(
-        "index.html",
-        {
-            "request": request,
+        request=request,
+        name="index.html",
+        context={
             "restrict_class": real_class,
             "restrict_student": real_student,
         },
@@ -693,9 +695,9 @@ async def run_project_page(request: Request, student_token: str, project_name: s
             pass
 
     return templates.TemplateResponse(
-        "player.html",
-        {
-            "request": request,
+        request=request,
+        name="player.html",
+        context={
             "class_name": real_class,
             "student_name": real_student,
             "student_token": student_token,

tests/test_security.py

@@ -4,6 +4,7 @@ from pathlib import Path
 from unittest.mock import patch
 
 import server
+from fastapi.testclient import TestClient
 
 
 class ServerSecurityTests(unittest.TestCase):
@@ -53,6 +54,12 @@ class ServerSecurityTests(unittest.TestCase):
             with self.assertRaisesRegex(RuntimeError, "拒絕未隔離執行"):
                 server._runner_sandbox_command("/tmp/project", "/tmp/session/runner.sock")
 
+    def test_homepage_renders_template(self):
+        with TestClient(server.app) as client:
+            response = client.get("/")
+        self.assertEqual(response.status_code, 200)
+        self.assertIn("text/html", response.headers["content-type"])
+
 
 if __name__ == "__main__":
     unittest.main()