Update ERC1155.sol

Author: letmehateu

contracts/token/ERC1155/ERC1155.sol

@@ -95,12 +95,16 @@ abstract contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI, IER
         return _operatorApprovals[account][operator];
     }
 
-    /// @inheritdoc IERC1155
-    function safeTransferFrom(address from, address to, uint256 id, uint256 value, bytes memory data) public virtual {
+    function _checkAuthorized(address from) internal view {
         address sender = _msgSender();
         if (from != sender && !isApprovedForAll(from, sender)) {
             revert ERC1155MissingApprovalForAll(sender, from);
         }
+    }
+
+    /// @inheritdoc IERC1155
+    function safeTransferFrom(address from, address to, uint256 id, uint256 value, bytes memory data) public virtual {
+        _checkAuthorized(from);
         _safeTransferFrom(from, to, id, value, data);
     }
 
@@ -112,13 +116,9 @@ abstract contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI, IER
         uint256[] memory values,
         bytes memory data
     ) public virtual {
-        address sender = _msgSender();
-        if (from != sender && !isApprovedForAll(from, sender)) {
-            revert ERC1155MissingApprovalForAll(sender, from);
-        }
+        _checkAuthorized(from);
         _safeBatchTransferFrom(from, to, ids, values, data);
     }
-
     /**
      * @dev Transfers a `value` amount of tokens of type `id` from `from` to `to`. Will mint (or burn) if `from`
      * (or `to`) is the zero address.