add ownership check utility

src/contract.rs

@@ -140,7 +140,7 @@ pub fn execute_finish(deps: DepsMut,
         if _com!=None{
             return Err(ContractError::Completed {});
         }
-        //let transfer_results=handle_swap_transfers(&info.sender,&swap.creator,swap.clone())?;
+
         let transfer_results= match msg.swap_type{
             true => handle_swap_transfers(&swap.creator,&info.sender,swap.clone())?,
             false=> handle_swap_transfers(&info.sender,&swap.creator,swap.clone())?,

src/lib.rs

@@ -3,5 +3,5 @@ mod error;
 mod integration_test;
 pub mod msg;
 pub mod state;
-
+pub mod utils;
 pub use crate::error::ContractError;

src/utils.rs

@@ -0,0 +1,22 @@
+use cosmwasm_std::{
+    to_binary, Addr, Binary, Deps, DepsMut, Env, QueryRequest, StdError, StdResult, WasmQuery,
+};
+use cw721_base::{Extension,  QueryMsg as Cw721QueryMsg};
+use cw721::OwnerOfResponse;
+
+pub fn query_name_owner(
+    id: &str,
+    cw721: &Addr,
+    deps: &DepsMut,
+) -> Result<OwnerOfResponse, StdError> {
+    let query_msg = Cw721QueryMsg::OwnerOf {
+        token_id: id.to_owned(),
+        include_expired: None,
+    };
+    let req = QueryRequest::Wasm(WasmQuery::Smart {
+        contract_addr: cw721.to_string(),
+        msg: to_binary(&query_msg).unwrap(),
+    });
+    let res: OwnerOfResponse = deps.querier.query(&req)?;
+    Ok(res)
+}