const { className: propClassName, style, alt, nft: propNft, thumbnail, fallbackUrl, } = props; const [state, setState] = useState({ contractId: propNft?.contractId, tokenId: propNft?.tokenId, loadingUrl: "https://ipfs.near.social/ipfs/bafkreidoxgv2w7kmzurdnmflegkthgzaclgwpiccgztpkfdkfzb4265zuu", imageUrl: null, oldUrl: null, }); const nftMetadata = propNft.contractMetadata ?? Near.view(state.contractId, "nft_metadata"); const tokenMetadata = propNft.tokenMetadata ?? Near.view(state.contractId, "nft_token", { token_id: state.tokenId, }).metadata; let imageUrl = null; if (nftMetadata && tokenMetadata) { let tokenMedia = tokenMetadata.media || ""; imageUrl = tokenMedia.startsWith("https://") || tokenMedia.startsWith("http://") || tokenMedia.startsWith("data:image") ? tokenMedia : nftMetadata.base_uri ? `${nftMetadata.base_uri}/${tokenMedia}` : tokenMedia.startsWith("Qm") || tokenMedia.startsWith("ba") ? `https://ipfs.near.social/ipfs/${tokenMedia}` : tokenMedia; if (!tokenMedia && tokenMetadata.reference) { if ( nftMetadata.base_uri === "https://arweave.net" && !tokenMetadata.reference.startsWith("https://") ) { const res = fetch(`${nftMetadata.base_uri}/${tokenMetadata.reference}`); imageUrl = res.body.media; } else if ( tokenMetadata.reference.startsWith("https://") || tokenMetadata.reference.startsWith("http://") ) { const res = fetch(tokenMetadata.reference); imageUrl = JSON.parse(res.body).media; } else if (tokenMetadata.reference.startsWith("ar://")) { const res = fetch( `${"https://arweave.net"}/${tokenMetadata.reference.split("//")[1]}` ); imageUrl = JSON.parse(res.body).media; } } if (!imageUrl) { imageUrl = false; } setState((prevState) => ({ ...prevState, imageUrl: imageUrl, })); } const replaceIpfs = useCallback( (imageUrl) => { const rex = /^(?:https?:\/\/)(?:[^\/]+\/ipfs\/)?(Qm[1-9A-HJ-NP-Za-km-z]{44,}|b[A-Za-z2-7]{58,}|B[A-Z2-7]{58,}|z[1-9A-HJ-NP-Za-km-z]{48,}|F[0-9A-F]{50,})(?:\.[^\/]+)?(\/.*)?$/g; if (state.oldUrl !== imageUrl && imageUrl) { const match = rex.exec(imageUrl); if (match) { const newImageUrl = `https://ipfs.near.social/ipfs/${match[1]}${ match[2] || "" }`; if (newImageUrl !== imageUrl) { setState((prevState) => ({ ...prevState, oldUrl: imageUrl, imageUrl: newImageUrl, })); return; } } } if (state.imageUrl !== false) { setState((prevState) => ({ ...prevState, imageUrl: false, })); } }, [state] ); const thumb = (imageUrl) => thumbnail && imageUrl && !imageUrl.startsWith("data:image/") ? `https://i.near.social/${thumbnail}/${imageUrl}` : imageUrl; const img = state.imageUrl !== null ? state.imageUrl : imageUrl; const src = img !== false ? img : fallbackUrl; return ( <img className={propClassName || "img-fluid"} style={style} src={src !== null ? thumb(src) : state.loadingUrl} alt={alt} onError={() => replaceIpfs(img)} /> );