Fix NFTMarketplace listing safety controls#5131
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NFTMarketplace listings now reject zero prices, expire before purchase, pay ERC-2981 royalties when available, and require a delayed cancellation request before seller cancellation can execute. Constraint: OpenAgents issue ClankerNation#18 requires contributor metadata while private platform instructions must not be embedded in repository files. Rejected: Immediate cancel with only a listing-age delay | still lets old listings be front-run canceled from the mempool. Confidence: high Scope-risk: narrow Directive: Preserve two-step cancel semantics if future marketplace flows add relisting or offers. Tested: npx hardhat test --config .\.codex-nftmarketplace-hardhat.config.js test\NFTMarketplaceSafety.test.js; npx solcjs --bin --abi contracts\nft\NFTMarketplace.sol -o .codex-nftmarketplace-solc --base-path . --include-path node_modules; node --check test\NFTMarketplaceSafety.test.js; node --check .codex-nftmarketplace-hardhat.config.js; node -e JSON.parse CONTRIBUTORS.json; git diff --check Not-tested: npm test is blocked by existing HH606 compiler mismatch in YieldAggregator/GovernorAlpha dependencies requiring ^0.8.24 while hardhat.config.js uses 0.8.20.
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Unfortunately the changes in this PR didn't fully resolve the issue. Please rework your solution and submit a new pull request within 2 hours. Make sure to review the acceptance criteria in the linked issue and verify all conditions are met before resubmitting. |
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/claim #18
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Summary
buyNFT()blocks expired listings.royaltyInfo()detection via staticcall and pays royalty before seller proceeds when available.requestCancel()+ delayedcancelListing()flow to prevent same-block/mempool front-run cancellation.Verification
npx hardhat test --config .\.codex-nftmarketplace-hardhat.config.js test\NFTMarketplaceSafety.test.js-> 4 passingnpx solcjs --bin --abi contracts\nft\NFTMarketplace.sol -o .codex-nftmarketplace-solc --base-path . --include-path node_modules-> passednode --check test\NFTMarketplaceSafety.test.js-> passednode --check .codex-nftmarketplace-hardhat.config.js-> passednode -e "JSON.parse(require('fs').readFileSync('CONTRIBUTORS.json','utf8')); console.log('CONTRIBUTORS.json ok')"-> passedgit diff --check-> passedKnown baseline issue
npm testis still blocked by the repository's existing HH606 compiler mismatch:hardhat.config.jsconfigures Solidity 0.8.20 while current OpenZeppelin dependencies pulled bycontracts/vault/YieldAggregator.solandcontracts/governance/GovernorAlpha.solrequire^0.8.24.