Get docker-compose working, 500 error on failure

The docker-compose.yml setting now works for the new cache dir.

This emits a 500 Server Error if something goes wrong now.

docker-compose.yml

@@ -28,7 +28,7 @@ services:
     ports:
       - "${FREEZING_WEB_PORT:-8000}:8000"
     volumes:
-      - ./data/cache:/data/cache
+      - ./data/cache:/cache
       - ./leaderboards:/data/leaderboards
       - ./data/sessions:/data/sessions
     environment:

freezing/web/views/api.py

@@ -410,19 +410,24 @@ def _get_cached(key: str, compute):
         return compute()
 
     cache_file = Path(cache_dir).joinpath(key).resolve()
-    if not str(cache_file).startswith(str(Path(cache_dir).resolve())):
-        raise Exception("Invalid cache file path")
-    if cache_file.is_file():
-        time_stamp = datetime.datetime.fromtimestamp(cache_file.stat().st_mtime)
-        age = datetime.datetime.now() - time_stamp
-        if age.total_seconds() < config.JSON_CACHE_MINUTES * 60:
-            return cache_file.read_bytes()
-
-    content = compute()
-    cache_file.parent.mkdir(parents=True, exist_ok=True)
-    cache_file.write_bytes(content)
-
-    return content
+    try:
+        if not str(cache_file).startswith(str(Path(cache_dir).resolve())):
+            raise Exception("Invalid cache file path")
+        if cache_file.is_file():
+            time_stamp = datetime.datetime.fromtimestamp(cache_file.stat().st_mtime)
+            age = datetime.datetime.now() - time_stamp
+            if age.total_seconds() < config.JSON_CACHE_MINUTES * 60:
+                return cache_file.read_bytes()
+
+        content = compute()
+        cache_file.parent.mkdir(parents=True, exist_ok=True)
+        cache_file.write_bytes(content)
+
+        return content
+    except Exception as e:
+        err = f"Error retrieving cached item {key}: {e}"
+        log.exception(err)
+        abort(500, err)
 
 
 def _make_gzip_json_response(content, private=False):