Разделение на файлы, мелкие доработки.

utils.py

@@ -0,0 +1,30 @@
+import os
+
+from config import get_storage_root
+from database import get_user_quota
+
+
+def get_user_files(username):
+    user_dir = os.path.join(get_storage_root(), username)
+    if not os.path.exists(user_dir):
+        return []
+    files = []
+    for fname in os.listdir(user_dir):
+        fpath = os.path.join(user_dir, fname)
+        if os.path.isfile(fpath):
+            files.append(fname)
+    return files
+
+
+def can_upload(username, file_size_bytes):
+    quota_mb, used_mb = get_user_quota(username)
+    if quota_mb is None:
+        return False
+    file_size_mb = file_size_bytes / (1024 * 1024)
+    return (used_mb + file_size_mb) <= quota_mb
+
+
+def get_user_dir(username):
+    user_dir = os.path.join(get_storage_root(), username)
+    os.makedirs(user_dir, exist_ok=True)
+    return user_dir