Submission Details
Severity:
NFT gets locked and has no liquidity
Summary
User buys nft through buyagent, but it is transfered to the BuyAgent contract, there is no way to withdraw it to the user.
function purchase(address _asset) external {
AssetListing storage listing = listings[_asset];
// asset must be listed to be purchased
if (listing.status != AssetStatus.Listed) {
revert InvalidStatus(listing.status, AssetStatus.Listed);
}
// can only the buyer can purchase the asset
if (listing.buyer != msg.sender) {
revert Unauthorized(msg.sender);
}
// update asset status to be sold
listing.status = AssetStatus.Sold;
// transfer asset from seller to Swan, and then from Swan to buyer
// this ensure that only approval to Swan is enough for the sellers
SwanAsset(_asset).transferFrom(listing.seller, address(this), 1);
SwanAsset(_asset).transferFrom(address(this), listing.buyer, 1);
// transfer money
token.transferFrom(listing.buyer, address(this), listing.price);
token.transfer(listing.seller, listing.price);
emit AssetSold(listing.seller, msg.sender, _asset, listing.price);
}
Impact
NFT gets locked and has no liquidity.
Tools Used
Manual
Recommendations
Prize pool breakdown
Total prize
21,000 USDC
nSLOC
1,03420 USDC / LOC
20,000 USDC
1,000 USDC
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