restrictions are now applied to kobo sync requests (Fix #1938)

cps/kobo.py

@@ -158,6 +158,7 @@ def HandleSyncRequest():
             .filter(db.Books.last_modified >= sync_token.books_last_modified)
             .filter(db.Books.id>sync_token.books_last_id)
             .filter(db.Data.format.in_(KOBO_FORMATS))
+            .filter(calibre_db.common_filters())
             .order_by(db.Books.last_modified)
             .order_by(db.Books.id)
             .limit(SYNC_ITEM_LIMIT)
@@ -168,6 +169,7 @@ def HandleSyncRequest():
             .join(db.Data).outerjoin(ub.ArchivedBook, db.Books.id == ub.ArchivedBook.book_id)
             .filter(db.Books.last_modified > sync_token.books_last_modified)
             .filter(db.Data.format.in_(KOBO_FORMATS))
+            .filter(calibre_db.common_filters())
             .order_by(db.Books.last_modified)
             .order_by(db.Books.id)
             .limit(SYNC_ITEM_LIMIT)