fix: Estate fingerprint calculation

webapp/src/components/AssetImage/AssetImage.tsx

@@ -81,6 +81,7 @@ const AssetImage = (props: Props) => {
     wearableController,
     isTryingOn,
     isPlayingEmote,
+    showUpdatedDateWarning,
     onSetIsTryingOn,
     onSetWearablePreviewController,
     onPlaySmartWearableVideoShowcase,
@@ -186,7 +187,13 @@ const AssetImage = (props: Props) => {
         setHasSound(sound)
       })
     }
-  }, [wearableController, asset.category, isDraggable, hasSound, isLoadingWearablePreview])
+  }, [
+    wearableController,
+    asset.category,
+    isDraggable,
+    hasSound,
+    isLoadingWearablePreview
+  ])
 
   const estateSelection = useMemo(() => (estate ? getSelection(estate) : []), [
     estate
@@ -257,6 +264,9 @@ const AssetImage = (props: Props) => {
           showForRent={false}
           showOnSale={false}
           showOwned={false}
+          lastUpdated={
+            showUpdatedDateWarning ? new Date(asset.updatedAt) : undefined
+          }
         >
           {hasBadges && children}
         </Atlas>
@@ -278,6 +288,9 @@ const AssetImage = (props: Props) => {
           showOnSale={false}
           showOwned={false}
           isEstate
+          lastUpdated={
+            showUpdatedDateWarning ? new Date(asset.updatedAt) : undefined
+          }
         >
           {hasBadges && children}
         </Atlas>

webapp/src/components/AssetImage/AssetImage.types.ts

@@ -25,6 +25,7 @@ export type Props = {
   className?: string
   isDraggable?: boolean
   withNavigation?: boolean
+  showUpdatedDateWarning?: boolean
   hasPopup?: boolean
   zoom?: number
   isSmall?: boolean

webapp/src/components/AssetPage/EstateDetail/EstateDetail.tsx

@@ -45,6 +45,7 @@ const EstateDetail = ({ nft, order, rental }: Props) => {
             isDraggable
             withNavigation
             hasPopup
+            showUpdatedDateWarning
           />
           {estate.size === 0 && (
             <div className="dissolved-wrapper">

webapp/src/components/AssetPage/ParcelDetail/ParcelDetail.tsx

@@ -32,7 +32,13 @@ const ParcelDetail = ({ nft, order, rental }: Props) => {
       asset={nft}
       rental={rental ?? undefined}
       assetImage={
-        <AssetImage asset={nft} isDraggable withNavigation hasPopup />
+        <AssetImage
+          asset={nft}
+          isDraggable
+          withNavigation
+          hasPopup
+          showUpdatedDateWarning
+        />
       }
       showDetails={isLand(nft)}
       isOnSale={!!nft.activeOrderId}

webapp/src/components/Atlas/Atlas.container.ts

@@ -1,6 +1,6 @@
 import { connect } from 'react-redux'
 import { push } from 'connected-react-router'
-import { getTiles, getTilesByEstateId } from '../../modules/tile/selectors'
+import { getLastModifiedDate, getTiles, getTilesByEstateId } from '../../modules/tile/selectors'
 import { getOnRentNFTsByLessor } from '../../modules/ui/browse/selectors'
 import { RootState } from '../../modules/reducer'
 import { getWalletNFTs } from '../../modules/nft/selectors'
@@ -19,6 +19,7 @@ const mapState = (state: RootState): MapStateProps => {
     nfts: getWalletNFTs(state),
     nftsOnRent,
     tilesByEstateId: getTilesByEstateId(state),
+    lastAtlasModifiedDate: getLastModifiedDate(state),
     getContract: (query: Partial<Contract>) => getContract(state, query)
   }
 }

webapp/src/components/Atlas/Atlas.css

@@ -29,6 +29,12 @@
   outline: 1px solid white;
 }
 
+.atlas-wrapper .atlas-warning-banner {
+  position: absolute;
+  bottom: 0;
+  width: 100%;
+}
+
 .atlas-wrapper .atlas-info-button .info-icon {
   background-image: url('../../images/info.svg');
   width: 16px;

webapp/src/components/Atlas/Atlas.tsx

@@ -15,6 +15,7 @@ import { nftAPI } from '../../modules/vendor/decentraland/nft/api'
 import { Props, Tile } from './Atlas.types'
 import { VendorName } from '../../modules/vendor'
 import { NFT } from '../../modules/nft/types'
+import ErrorBanner from '../ErrorBanner'
 import Popup from './Popup'
 import './Atlas.css'
 
@@ -35,8 +36,10 @@ const Atlas: React.FC<Props> = (props: Props) => {
     tilesByEstateId,
     withMapColorsInfo,
     withZoomControls,
+    lastAtlasModifiedDate,
     getContract,
-    children
+    children,
+    lastUpdated
   } = props
 
   const [showPopup, setShowPopup] = useState(false)
@@ -375,6 +378,16 @@ const Atlas: React.FC<Props> = (props: Props) => {
         layers={layers}
         withZoomControls={withZoomControls}
       />
+      {lastAtlasModifiedDate &&
+      lastUpdated &&
+      lastUpdated > lastAtlasModifiedDate ? (
+        <ErrorBanner
+          className="atlas-warning-banner"
+          info={t('atlas_updated_warning.info', {
+            strong: (text: string) => <strong>{text}</strong>
+          })}
+        />
+      ) : null}
       {hoveredTile ? (
         <Popup
           x={x}

webapp/src/components/Atlas/Atlas.types.ts

@@ -32,14 +32,16 @@ export type Props = Partial<AtlasProps> & {
   showOwned?: boolean
   withMapColorsInfo?: boolean
   withZoomControls?: boolean
+  lastUpdated?: Date
+  lastAtlasModifiedDate: Date | null
   getContract: (query: Partial<Contract>) => ReturnType<typeof getContract>
   onNavigate: (path: string) => void
   children?: React.ReactNode
 }
 
 export type MapStateProps = Pick<
   Props,
-  'tiles' | 'nfts' | 'nftsOnRent' | 'tilesByEstateId' | 'getContract'
+  'tiles' | 'nfts' | 'nftsOnRent' | 'tilesByEstateId' | 'getContract' | 'lastAtlasModifiedDate'
 >
 export type MapDispatchProps = Pick<Props, 'onNavigate'>
 export type MapDispatch = Dispatch<CallHistoryMethodAction>

webapp/src/components/BidPage/BidModal/BidModal.tsx

@@ -1,6 +1,6 @@
 import React, { useState, useCallback } from 'react'
 import { ethers } from 'ethers'
-import { Contract } from '@dcl/schemas'
+import { Contract, NFTCategory } from '@dcl/schemas'
 import { Header, Form, Field, Button } from 'decentraland-ui'
 import { t, T } from 'decentraland-dapps/dist/modules/translation/utils'
 import { withAuthorizedAction } from 'decentraland-dapps/dist/containers'
@@ -26,6 +26,7 @@ import { getBidStatus, getError } from '../../../modules/bid/selectors'
 import { ManaField } from '../../ManaField'
 import { ConfirmInputValueModal } from '../../ConfirmInputValueModal'
 import { Mana } from '../../Mana'
+import ErrorBanner from '../../ErrorBanner'
 import { Props } from './BidModal.types'
 import './BidModal.css'
 
@@ -44,7 +45,7 @@ const BidModal = (props: Props) => {
   const [price, setPrice] = useState('')
   const [expiresAt, setExpiresAt] = useState(getDefaultExpirationDate())
 
-  const [fingerprint, isLoading] = useFingerprint(nft)
+  const [fingerprint, isLoadingFingerprint, contractFingerprint] = useFingerprint(nft)
 
   const [showConfirmationModal, setShowConfirmationModal] = useState(false)
 
@@ -105,8 +106,10 @@ const BidModal = (props: Props) => {
     isInvalidPrice ||
     isInvalidDate ||
     hasInsufficientMANA ||
-    isLoading ||
-    isPlacingBid
+    isLoadingFingerprint ||
+    isPlacingBid ||
+    (!fingerprint && nft.category === NFTCategory.ESTATE) ||
+    contractFingerprint !== fingerprint
 
   return (
     <AssetAction asset={nft}>
@@ -161,11 +164,14 @@ const BidModal = (props: Props) => {
               error={isInvalidDate}
               message={isInvalidDate ? t('bid_page.invalid_date') : undefined}
             />
+            {!isLoadingFingerprint && contractFingerprint !== fingerprint ? (
+              <ErrorBanner info={t('atlas_updated_warning.fingerprint_missmatch')} />
+            ) : null}
           </div>
           <div className="buttons">
             <Button
               as="div"
-              disabled={isLoading || isPlacingBid}
+              disabled={isLoadingFingerprint || isPlacingBid}
               onClick={() =>
                 onNavigate(locations.nft(nft.contractAddress, nft.tokenId))
               }

webapp/src/components/BuyPage/BuyNFTModal/BuyNFTModal.tsx

@@ -20,11 +20,12 @@ import { getContractNames } from '../../../modules/vendor'
 import * as events from '../../../utils/events'
 import { AssetType } from '../../../modules/asset/types'
 import { Contract as DCLContract } from '../../../modules/vendor/services'
+import { getBuyItemStatus, getError } from '../../../modules/order/selectors'
 import { AssetAction } from '../../AssetAction'
 import { Network as NetworkSubtitle } from '../../Network'
 import PriceSubtitle from '../../Price'
 import { AssetProviderPage } from '../../AssetProviderPage'
-import { getBuyItemStatus, getError } from '../../../modules/order/selectors'
+import ErrorBanner from '../../ErrorBanner'
 import { PriceTooLow } from '../PriceTooLow'
 import { Name } from '../Name'
 import { Price } from '../Price'
@@ -51,7 +52,11 @@ const BuyNFTModal = (props: Props) => {
     onClearOrderErrors
   } = props
 
-  const [fingerprint, isFingerprintLoading] = useFingerprint(nft)
+  const [
+    fingerprint,
+    isFingerprintLoading,
+    contractFingerprint
+  ] = useFingerprint(nft)
   const analytics = getAnalytics()
 
   const handleExecuteOrder = useCallback(
@@ -121,7 +126,9 @@ const BuyNFTModal = (props: Props) => {
     !order ||
     isOwner ||
     (hasInsufficientMANA && !isBuyWithCardPage) ||
-    (!fingerprint && nft.category === NFTCategory.ESTATE)
+    (!fingerprint && nft.category === NFTCategory.ESTATE) ||
+    isFingerprintLoading ||
+    contractFingerprint !== fingerprint
 
   const name = <Name asset={nft} />
 
@@ -140,12 +147,6 @@ const BuyNFTModal = (props: Props) => {
     subtitle = (
       <T id={`${translationPageDescriptorId}.not_for_sale`} values={{ name }} />
     )
-  } else if (
-    !fingerprint &&
-    nft.category === NFTCategory.ESTATE &&
-    !isFingerprintLoading
-  ) {
-    subtitle = <T id={`${translationPageDescriptorId}.no_fingerprint`} />
   } else if (isOwner) {
     subtitle = (
       <T id={`${translationPageDescriptorId}.is_owner`} values={{ name }} />
@@ -202,6 +203,9 @@ const BuyNFTModal = (props: Props) => {
         <PriceTooLow chainId={nft.chainId} network={nft.network} />
       ) : null}
       <PartiallySupportedNetworkCard asset={nft} />
+      {!isFingerprintLoading && contractFingerprint !== fingerprint ? (
+        <ErrorBanner info={t('atlas_updated_warning.fingerprint_missmatch')} />
+      ) : null}
       <div
         className={classNames('buttons', isWearableOrEmote(nft) && 'with-mana')}
       >

webapp/src/components/ErrorBanner/ErrorBanner.module.css

@@ -0,0 +1,28 @@
+.container {
+  background: var(--dropdown);
+  display: flex;
+  padding: 20px;
+  gap: 10px;
+}
+
+.icon {
+  background: var(--oj-not-simpson);
+  border-radius: 50%;
+  min-width: 25px;
+  height: 25px;
+  text-align: center;
+  margin: 0;
+}
+
+.icon :global(.icon) {
+  position: relative;
+  top: 2px;
+  margin: 0;
+}
+
+.info {
+  display: flex;
+  flex-direction: column;
+  gap: 5px;
+  text-align: left;
+}

webapp/src/components/ErrorBanner/ErrorBanner.tsx

@@ -0,0 +1,17 @@
+import classNames from 'classnames'
+import { Icon } from 'decentraland-ui'
+import { Props } from './ErrorBanner.types'
+import styles from './ErrorBanner.module.css'
+
+export default function ErrorBanner({ info, className }: Props) {
+  return (
+    <div className={classNames(styles.container, className)}>
+      <div className={styles.icon}>
+        <Icon name="exclamation triangle" />
+      </div>
+      <span className={styles.info}>
+        {info}
+      </span>
+    </div>
+  )
+}

webapp/src/components/ErrorBanner/ErrorBanner.types.ts

@@ -0,0 +1,4 @@
+export type Props = {
+  info: string;
+  className?: string;
+}

webapp/src/components/ErrorBanner/index.ts

@@ -0,0 +1,2 @@
+import ErrorBanner from "./ErrorBanner";
+export default ErrorBanner

webapp/src/modules/nft/estate/utils.ts

@@ -1,10 +1,12 @@
 import {
   getSigner,
-  getConnectedProvider
+  getConnectedProvider,
+  getNetworkProvider
 } from 'decentraland-dapps/dist/lib/eth'
 import { EstateRegistry__factory } from '../../../contracts'
 import { Contract } from '../../vendor/services'
 import { NFT } from '../types'
+import { ethers } from 'ethers'
 
 export const getSelection = (estate: NFT['data']['estate']) => {
   return estate!.parcels.map(pair => ({
@@ -21,6 +23,53 @@ export const getCenter = (selection: { x: number; y: number }[]) => {
   return [x, y]
 }
 
+export async function generateFingerprint(
+  estateId: string,
+  parcels: { x: number; y: number }[],
+  landContract: Contract
+) {
+  const provider = await getNetworkProvider(landContract.chainId)
+  const contract = new ethers.Contract(
+    landContract.address,
+    [
+      {
+        constant: true,
+        inputs: [
+          { name: 'x', type: 'int256' },
+          { name: 'y', type: 'int256' }
+        ],
+        name: 'encodeTokenId',
+        outputs: [{ name: '', type: 'uint256' }],
+        payable: false,
+        stateMutability: 'pure',
+        type: 'function'
+      }
+    ],
+    new ethers.providers.Web3Provider(provider)
+  )
+
+  const estateTokenIds = []
+
+  for (const parcel of parcels) {
+    estateTokenIds.push(await contract.encodeTokenId(parcel.x, parcel.y))
+  }
+
+  let fingerprint = BigInt(
+    ethers.utils.solidityKeccak256(
+      ['string', 'uint256'],
+      ['estateId', estateId]
+    )
+  )
+
+  for (const tokenId of estateTokenIds) {
+    fingerprint ^= BigInt(
+      ethers.utils.solidityKeccak256(['uint256'], [tokenId])
+    )
+  }
+
+  return ethers.utils.hexlify(fingerprint)
+}
+
 export async function getFingerprint(
   estateId: string,
   estateContract: Contract