fixes filename encoding

app/api/routes/progressive_storage.py

@@ -7,6 +7,7 @@ from mimetypes import guess_type
 
 import aiofiles
 from base58 import b58encode
+from base64 import b64decode
 from sanic import response
 
 from app.core.logger import make_log
@@ -34,6 +35,7 @@ async def s_api_v1_5_storage_post(request):
         return response.json({"error": "Invalid X-Content-SHA256 header format"}, status=400)
     
     provided_filename = request.headers.get("X-File-Name")
+    provided_filename = b64decode(provided_filename).decode("utf-8")
 
     # Check if the file already exists in the database
     db_session = request.ctx.db_session