api resiliency improvements

Signed-off-by: Vladimir Mandic <mandic00@live.com>

modules/api/helpers.py

@@ -18,10 +18,14 @@ def decode_base64_to_image(encoding, quiet=False):
     if encoding.startswith("data:image/"):
         encoding = encoding.split(";")[1].split(",")[1]
     try:
-        image = Image.open(io.BytesIO(base64.b64decode(encoding)))
+        decoded = base64.b64decode(encoding)
+        data = io.BytesIO(decoded)
+        image = Image.open(data)
         return image
     except Exception as e:
         shared.log.warning(f'API cannot decode image: {e}')
+        from modules import errors
+        errors.display(e, 'API cannot decode image')
         if not quiet:
             raise HTTPException(status_code=500, detail="Invalid encoded image") from e
         return None