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ERC-721
Overview
Max Total Supply
3,861 LASOG
Holders
1,384
Market
Volume (24H)
0.0424 ETH
Min Price (24H)
$107.33 @ 0.042400 ETH
Max Price (24H)
$107.33 @ 0.042400 ETH
Other Info
Token Contract
Balance
4 LASOGLoading...
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
LasogetteNFT
Compiler Version
v0.8.16+commit.07a7930e
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT // LasogetteNFT /** ==================================================================================================== .., @@% .@@ ..(%&@(@@@ . . (, ,,&&&(&&@ .(*,#%. %&&@@@@, ,... @@&* . /@@@@/ %&@@#(. #@@@@@% .@@@@@% ,%@@@@@@( #@@@@@@@@% ,&@@@&&% @&@/&. . ,.,. @@&. /@. %@@ @@@* %@@./@@@ .@@* &@, ,@@@@@@&. %&@@ .@@@ &, .. ,*, /@@@ *@( @&&* &@@& &@@ &@& /@@ #@@@. .@@@ @@@, @@@. @@@&@&&,.. /,, @@@@ &@ @@@. &@@@@# &@@ #@@. /@@, @@@, @@@/,,&. .&@& @&@, .@@ ,. @@@@&@&&&&@. #@&@@.&@&(# . &@&&&&@@ /@@(,@@@# @@@@@@@@ @@% @&&% &@&@@@&&& ,.. . ,, .. .@%&#&% , .. . . . . ==================================================================================================== */ /** * * Bonjour, et bienvenue sur le contrat lasogette NFT. Regarde autour de toi! * * Hello, and welcome to the lasogette NFT contract. Have a look around! * */ pragma solidity 0.8.16; import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "@openzeppelin/contracts/utils/Strings.sol"; import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Burnable.sol"; import "@chainlink/contracts/src/v0.8/interfaces/VRFCoordinatorV2Interface.sol"; import "@chainlink/contracts/src/v0.8/VRFConsumerBaseV2.sol"; import "./IEPSPortal.sol"; contract LasogetteNFT is ERC721, Ownable, ERC721Burnable, VRFConsumerBaseV2 { using Strings for uint256; // =================================== // CONSTANTS and IMMUTABLES // =================================== string public constant INSURANCE = "Interaction with this contract serves as an insurance against roko's basilisk."; // EPS minting rights index for delegated rights: // Indice des droits de frappe EPS pour les droits délégués: uint256 public constant EPS_MINTING_RIGHTS_INDEX = 2; // EPS portal lookup: // Recherche sur le portail EPS: IEPSPortal public immutable EPS; // Total supply of lasogettes: // Approvisionnement total en lasogettes: uint256 public immutable maxNumberOfLasogettes; // Mint price (note eligible community holders can mint one for free in freeMint()) // Prix à la menthe (notez que les détenteurs éligibles de la communauté peuvent en créer un gratuitement dans freeMint()) uint256 public immutable publicMintPrice; // URI used for all tokens pre-reveal. Reveal is set through the calling of chainlink VRF to // set the random offset. // URI utilisé pour la pré-révélation de tous les jetons. La révélation est définie par l'appel de chainlink VRF à // définit le décalage aléatoire. string public placeholderURI; // Base URI used post-reveal, i.e. the folder location for individual token .json with // associated metadata including the link to an image. Note that NO ONE can know what lasogette // you will get post-reveal. Your lasogette is the combination of your token ID and a random // number from chainlink VRF. The order to the metadata is fixed before mint, but the VRF // result is not known until called in this contract, and it can only be called once. This works // as follows: // * You have tokenID 1291. Pre-reveal you see the same metadata and image as everyone else // as the contract is using the placeholderURI // * At the reveal the token owner calls getURIOffset(). This makes a requests to chainlink // for verficiable randonemess (VRF). // * Chainlink will then submit a random number to this contract, that we used to determine // a number between 1 and the total collection size. Let's imagine this is number 2034 // * The URI returned for your token is now your tokenId plus the VRF random number -1 (as // the collection is 0 indexed with a token 0). In our example our token is now pointing // at metadata 3,324 (1,291 + 2,034 - 1). // * With this method there is no way for anyone to know which lasogette each token will get // prior to the reveal // * As the metadata is uploaded prior to minting the order cannot have been tampered with. // URI de base utilisé après la révélation, c'est-à-dire l'emplacement du dossier pour le jeton individuel .json avec // métadonnées associées incluant le lien vers une image. Notez que PERSONNE ne peut savoir ce qu'est la lasogette // vous obtiendrez après la révélation. Votre lasogette est la combinaison de votre identifiant de jeton et d'un // numéro de chainlink VRF. L'ordre des métadonnées est fixé avant la menthe, mais le VRF // le résultat n'est pas connu tant qu'il n'est pas appelé dans ce contrat, et il ne peut être appelé qu'une seule fois. Cela marche // comme suit: // * Vous avez le tokenID 1291. Avant la révélation, vous voyez les mêmes métadonnées et la même image que tout le monde // car le contrat utilise le placeholderURI // * Lors de la révélation, le propriétaire du jeton appelle getURIOffset(). Cela fait une demande à chainlink // pour le désordre vérifiable (VRF). // * Chainlink soumettra ensuite un nombre aléatoire à ce contrat, que nous avons utilisé pour déterminer // un nombre compris entre 1 et la taille totale de la collection. Imaginons que c'est le numéro 2034 // * L'URI renvoyé pour votre jeton est maintenant votre tokenId plus le nombre aléatoire VRF -1 (comme // la collection est 0 indexée avec un jeton 0). Dans notre exemple, notre jeton pointe maintenant // aux métadonnées 3 324 (1 291 + 2 034 - 1). // * Avec cette méthode, il n'y a aucun moyen pour quiconque de savoir quelle lasogette chaque jeton obtiendra // avant la révélation // * Comme les métadonnées sont téléchargées avant la frappe, la commande ne peut pas avoir été falsifiée. string public baseURI; // =================================== // STORAGE // =================================== // Storage for the incrementing token counter: // Stockage pour le compteur de jetons incrémentiel : uint256 public tokenCounter; // Storage to track burned tokens: // Stockage pour le compteur de jetons incrémentiel : uint256 public burnCounter; // Treasury address // Adresse du Trésor address payable public treasuryAddress; // Token URI offset, assigned by a callback from chainlink VRF // Décalage d'URI de jeton, attribué par un rappel du VRF de chainlink uint256 public tokenURIOffset; // Bool to declare minting open bool public mintingOpen = false; // Mapping to record that this address has minted: // Mappage pour enregistrer que cette adresse a frappé : mapping(address => bool) public addressHasFreeMinted; // Mapping to record that this token has been used to claim eligibility: // Mappage pour enregistrer que ce jeton a été utilisé pour revendiquer l'éligibilité : mapping(bytes32 => bool) private tokenHasFreeMinted; /** * @dev Chainlink config. */ // See https://docs.chain.link/docs/vrf-contracts/#ethereum-mainnet for details of VRF // corrdinator addresses. // Current values as follows: // Voir https://docs.chain.link/docs/vrf-contracts/#ethereum-mainnet pour plus de détails sur VRF // adresses des coordonnateurs. // Valeurs actuelles comme suit : // -------------------------- // * Rinkeby: 0x6168499c0cFfCaCD319c818142124B7A15E857ab // * Mainnet: 0x271682DEB8C4E0901D1a1550aD2e64D568E69909 VRFCoordinatorV2Interface public vrfCoordinator; // The subscription ID must be set to a valid subscriber before the VRF call can be made: // L'ID d'abonnement doit être défini sur un abonné valide avant que l'appel VRF puisse être effectué : uint64 public vrfSubscriptionId; // The gas lane to use, which specifies the maximum gas price to bump to. // For a list of available gas lanes on each network, // see https://docs.chain.link/docs/vrf-contracts/#configurations // Current values as follows: // La voie d'essence à utiliser, qui spécifie le prix maximum de l'essence à atteindre. // Pour une liste des voies gaz disponibles sur chaque réseau, // voir https://docs.chain.link/docs/vrf-contracts/#configurations // Valeurs actuelles comme suit : // -------------------------- // * Rinkeby: 0xd89b2bf150e3b9e13446986e571fb9cab24b13cea0a43ea20a6049a85cc807cc (30 gwei keyhash valid for all testing) // * Mainnet: // * 0x8af398995b04c28e9951adb9721ef74c74f93e6a478f39e7e0777be13527e7ef (200 gwei) // * 0xff8dedfbfa60af186cf3c830acbc32c05aae823045ae5ea7da1e45fbfaba4f92 (500 gwei) // * 0x9fe0eebf5e446e3c998ec9bb19951541aee00bb90ea201ae456421a2ded86805 (1000 gwei) bytes32 public vrfKeyHash; // Depends on the number of requested values that you want sent to the // fulfillRandomWords() function. Storing each word costs about 20,000 gas, // so 100,000 is a safe default for this example contract. Test and adjust // this limit based on the network that you select, the size of the request, // and the processing of the callback request in the fulfillRandomWords() // function. // Dépend du nombre de valeurs demandées que vous souhaitez envoyer au // Fonction fillRandomWords(). Stocker chaque mot coûte environ 20 000 gaz, // donc 100 000 est une valeur par défaut sûre pour cet exemple de contrat. Tester et ajuster // cette limite basée sur le réseau que vous sélectionnez, la taille de la requête, // et le traitement de la demande de rappel dans le fillRandomWords() // fonction. uint32 public vrfCallbackGasLimit = 150000; // The default is 3, but you can set this higher. // La valeur par défaut est 3, mais vous pouvez la définir plus haut. uint16 public vrfRequestConfirmations = 3; // Cannot exceed VRFCoordinatorV2.MAX_NUM_WORDS. // Ne peut pas dépasser VRFCoordinatorV2.MAX_NUM_WORDS. uint32 public vrfNumWords = 1; // =================================== // ERROR DEFINITIONS // =================================== error TokenURIOffsetAlreadySet(); error URIQueryForNonexistentToken(uint256 tokenId); error AddressHasAlreadyMinted(address minter); error CallerIsNotBeneficiaryOfSelectedNFT( address collection, uint256 tokenId ); error TokenHasAlreadyBeenUsedInFreeMint(address collection, uint256 tokenId); error InvalidCollection(address collection); error IncorrectETHPayment(uint256 paid, uint256 required); error SupplyOfLasogettedExceeded(uint256 available, uint256 requested); error OnlyOwnerCanFundContract(); error NoFallback(); error TransferFailed(); error QuantityMustBeGreaterThanZero(); error PlaceholderURISet(); error BaseURISet(); error MintingNotOpen(); // =================================== // CONSTRUCTOR // =================================== constructor( uint256 maxSupply_, uint256 publicMintPrice_, address vrfCoordinator_, bytes32 vrfKeyHash_, address payable treasuryAddress_, address eps_, string memory placeholderURI_, string memory baseURI_ ) ERC721("Lasogette NFT", "LASOG") VRFConsumerBaseV2(vrfCoordinator_) { maxNumberOfLasogettes = maxSupply_; publicMintPrice = publicMintPrice_; vrfKeyHash = vrfKeyHash_; vrfCoordinator = VRFCoordinatorV2Interface(vrfCoordinator_); treasuryAddress = treasuryAddress_; EPS = IEPSPortal(eps_); placeholderURI = placeholderURI_; baseURI = baseURI_; } // =================================== // SETTERS (owner only) // =================================== /** * * @dev setTreasuryAddress: Allow the owner to set the treasury address. * setTreasuryAddress : permet au propriétaire de définir l'adresse de trésorerie. * */ function setTreasuryAddress(address payable treasuryAddress_) external onlyOwner { treasuryAddress = treasuryAddress_; } /** * * @dev openMinting: Allow the owner to open minting. Mint will run until minted out. * */ function openMinting() external onlyOwner { mintingOpen = true; } /** * * @dev setPlaceHolderURI: Allow the owner to set the placeholder URI IF it is blank (i.e. only set once). * */ function setPlaceholderURI(string memory placeholderURI_) external onlyOwner { if (bytes(placeholderURI).length != 0) { revert PlaceholderURISet(); } placeholderURI = placeholderURI_; } /** * * @dev setBaseURI: Allow the owner to set the base URI IF it is blank (i.e. only set once). * */ function setBaseURI(string memory baseURI_) external onlyOwner { if (bytes(baseURI).length != 0) { revert BaseURISet(); } baseURI = baseURI_; } /** * * @dev setVRFCoordinator * */ function setVRFCoordinator(address vrfCoord_) external onlyOwner { vrfCoordinator = VRFCoordinatorV2Interface(vrfCoord_); } /** * * @dev setVRFKeyHash * */ function setVRFKeyHash(bytes32 vrfKey_) external onlyOwner { vrfKeyHash = vrfKey_; } /** * * @dev setVRFCallbackGasLimit * */ function setVRFCallbackGasLimit(uint32 vrfGasLimit_) external onlyOwner { vrfCallbackGasLimit = vrfGasLimit_; } /** * * @dev setVRFRequestConfirmations * */ function setVRFRequestConfirmations(uint16 vrfConfs_) external onlyOwner { vrfRequestConfirmations = vrfConfs_; } /** * * @dev setVRFNumWords * */ function setVRFNumWords(uint32 vrfWords_) external onlyOwner { vrfNumWords = vrfWords_; } /** * * @dev setVRFSubscriptionId * */ function setVRFSubscriptionId(uint64 vrfSubId_) external onlyOwner { vrfSubscriptionId = vrfSubId_; } // =================================== // MINTING // =================================== /** * * @dev freeMint(): free mint for holders of eligible assets menthe gratuite pour les détenteurs d'actifs éligibles * */ function freeMint( address collection_, uint256 tokenId_, bool useDelivery_ ) external { if (!mintingOpen) { revert MintingNotOpen(); } _checkSupply(1); // Check if this address has already minted. If so, revert and tell the user why: // Vérifie si cette adresse a déjà été émise. Si c'est le cas, revenez en arrière et dites à l'utilisateur pourquoi : if (addressHasFreeMinted[msg.sender]) { revert AddressHasAlreadyMinted({minter: msg.sender}); } // Make a hash of the collection and token Id to uniquely identify this token: // Créez un hachage de la collection et de l'identifiant du jeton pour identifier de manière unique ce jeton : bytes32 tokenIdHash = keccak256(abi.encodePacked(collection_, tokenId_)); // Check if this token has already been used to claim a free mint. // If so, revert and tell the user why: // Vérifie si ce jeton a déjà été utilisé pour réclamer un atelier gratuit. // Si c'est le cas, revenir en arrière et dire à l'utilisateur pourquoi : if (tokenHasFreeMinted[tokenIdHash]) { revert TokenHasAlreadyBeenUsedInFreeMint({ collection: collection_, tokenId: tokenId_ }); } // Check if this is a valid collection for free minting: // Vérifiez s'il s'agit d'une collection valide pour la frappe gratuite : if (!isValidCollection(collection_)) { revert InvalidCollection({collection: collection_}); } // Check that the calling user is the valid beneficiary of the token // That has been passed. A valid beneficiary can be: // 1) The owner of the token (most common case) // 2) A hot wallet that holds the token in a linked EPS cold wallet // 3) A wallet that has an EPS minting rights rental on the token // (for details see eternalproxy.com) // Vérifier que l'utilisateur appelant est le bénéficiaire valide du jeton // Cela a été adopté. Un bénéficiaire valide peut être : // 1) Le propriétaire du jeton (cas le plus courant) // 2) Un portefeuille chaud qui contient le jeton dans un portefeuille froid EPS lié // 3) Un portefeuille qui a une location de droits de frappe EPS sur le jeton // (pour plus de détails, voir éternelleproxy.com) if (!isValidAssetBeneficiary(collection_, tokenId_, msg.sender)) { revert CallerIsNotBeneficiaryOfSelectedNFT({ collection: collection_, tokenId: tokenId_ }); } // Set where assets should be delivered. This defaults to the // sender address, looking up the EPS delivery address of the // sender has selected that option in the minting UI: // Définir où les actifs doivent être livrés. C'est par défaut le // adresse de l'expéditeur, recherche de l'adresse de livraison EPS du // l'expéditeur a sélectionné cette option dans l'interface utilisateur : address deliveryAddress = _getDeliveryAddress(useDelivery_, msg.sender); // We made it! Perform the mint: // Nous l'avons fait! Effectuez la menthe: _performMint(deliveryAddress); // Record that this address has minted: // Enregistrez que cette adresse a été frappée : addressHasFreeMinted[msg.sender] = true; // Record that this token has been used to claim a free mint: // Enregistrez que ce jeton a été utilisé pour réclamer un atelier gratuit : tokenHasFreeMinted[tokenIdHash] = true; } /** * * @dev _checkSupply * */ function _checkSupply(uint256 quantity_) internal view { if ((tokenCounter + quantity_) > maxNumberOfLasogettes) { revert SupplyOfLasogettedExceeded({ available: maxNumberOfLasogettes - tokenCounter, requested: quantity_ }); } } /** * @dev _performMint */ function _performMint(address delivery_) internal { _safeMint(delivery_, tokenCounter); tokenCounter += 1; } /** * * @dev isValidAssetBeneficiary * */ function isValidAssetBeneficiary( address collection_, uint256 tokenId_, address caller_ ) public view returns (bool) { // Get the registered beneficiary for this asset from EPS: // Obtenez le bénéficiaire enregistré pour cet actif auprès d'EPS : return (EPS.beneficiaryOf( collection_, tokenId_, EPS_MINTING_RIGHTS_INDEX ) == caller_); } /** * * @dev isEligibleForFreeMint: check the eligibility of a collection, token and caling address * Note this duplicates the checks in the free mint, which instead call revert with * suitable custom errors. This function is for external calls. * vérifier l'éligibilité d'une collecte, d'un jeton et d'une adresse d'appel * Notez que cela duplique les chèques de la menthe gratuite, qui appellent à la place revenir avec * erreurs personnalisées appropriées. Cette fonction est réservée aux appels externes. * */ function isEligibleForFreeMint( address collection_, uint256 tokenId_, address caller_ ) external view returns (bool, string memory) { if (addressHasFreeMinted[caller_]) { return (false, "Address has already free minted"); } bytes32 tokenIdHash = keccak256(abi.encodePacked(collection_, tokenId_)); if (tokenHasFreeMinted[tokenIdHash]) { return (false, "Token has already been used in free mint"); } if (!isValidCollection(collection_)) { return (false, "Invalid collection"); } if (!isValidAssetBeneficiary(collection_, tokenId_, caller_)) { return (false, "Caller is not beneficiary of selected NFT"); } return (true, ""); } /** * * @dev isValidCollection * */ function isValidCollection(address collection_) public pure returns (bool) { return (collection_ == 0x1D20A51F088492A0f1C57f047A9e30c9aB5C07Ea || // wassies by wassies collection_ == 0x1CB1A5e65610AEFF2551A50f76a87a7d3fB649C6 || // cryptoadz collection_ == 0x79FCDEF22feeD20eDDacbB2587640e45491b757f || // mfers collection_ == 0x5Af0D9827E0c53E4799BB226655A1de152A425a5 || // milady collection_ == 0x62eb144FE92Ddc1B10bCAde03A0C09f6FBffBffb || // adworld collection_ == 0xA16891897378a82E9F0ad44A705B292C9753538C || // pills collection_ == 0x91680cF5F9071cafAE21B90ebf2c9CC9e480fB93 || // frank frank collection_ == 0xEC0a7A26456B8451aefc4b00393ce1BefF5eB3e9 || // all stars collection_ == 0x82235445a7f634279E33702cc004B0FDb002fDa7 || // sakura park collection_ == 0x42069ABFE407C60cf4ae4112bEDEaD391dBa1cdB); // CryptoDickbutts } /** * * @dev publicMint(): public mint for everyone * monnaie publique pour tous * */ function publicMint(uint256 quantity_, bool useDelivery_) external payable { if (!mintingOpen) { revert MintingNotOpen(); } _checkSupply(quantity_); if (quantity_ == 0) { revert QuantityMustBeGreaterThanZero(); } if (msg.value != (quantity_ * publicMintPrice)) { revert IncorrectETHPayment({ paid: msg.value, required: (quantity_ * publicMintPrice) }); } address deliveryAddress = _getDeliveryAddress(useDelivery_, msg.sender); for (uint256 i = 0; i < quantity_; i++) { _performMint(deliveryAddress); } } /** * * @dev _getDeliveryAddress * */ function _getDeliveryAddress(bool useEPSDelivery_, address caller_) internal view returns (address) { if (useEPSDelivery_) { (, address delivery, ) = EPS.getAddresses(caller_); return delivery; } else { return caller_; } } // =================================== // URI HANDLING // =================================== /** * * @dev getURIOffset: Requests randomness. * Demande le hasard. * */ function getURIOffset() public onlyOwner returns (uint256) { if (tokenURIOffset != 0) { revert TokenURIOffsetAlreadySet(); } return vrfCoordinator.requestRandomWords( vrfKeyHash, vrfSubscriptionId, vrfRequestConfirmations, vrfCallbackGasLimit, vrfNumWords ); } /** * * @dev fulfillRandomWords: Callback function used by VRF Coordinator. * Fonction de rappel utilisée par le coordinateur VRF. * */ function fulfillRandomWords(uint256, uint256[] memory randomWords_) internal override { if (tokenURIOffset != 0) { revert TokenURIOffsetAlreadySet(); } tokenURIOffset = (randomWords_[0] % maxNumberOfLasogettes) + 1; } /** * * @dev tokenURI * * */ function tokenURI(uint256 tokenId_) public view override(ERC721) returns (string memory) { if (!_exists(tokenId_)) { revert URIQueryForNonexistentToken({tokenId: tokenId_}); } if (tokenURIOffset == 0) { return string(placeholderURI); } else { return string( abi.encodePacked(baseURI, _getTokenURI(tokenId_).toString(), ".json") ); } } /** * * @dev _getTokenURI: get the token URI based on the random offset obtenir l'URI du jeton en fonction du décalage aléatoire * */ function _getTokenURI(uint256 tokenId_) internal view returns (uint256) { uint256 tempTokenURI = tokenId_ + (tokenURIOffset - 1); // If the returned URI range exceeds the collection length, it wraps to be beginning: if (tempTokenURI > maxNumberOfLasogettes - 1) { tempTokenURI = tempTokenURI - (maxNumberOfLasogettes); } return tempTokenURI; } // =================================== // OPERATIONAL // =================================== /** * * @dev totalSupply(): totalSupply = tokens minted (tokenCounter) minus burned * totalSupply = jetons frappés (tokenCounter) moins brûlés * */ function totalSupply() public view returns (uint256) { return tokenCounter - burnCounter; } /** * * @dev burn: Burns `tokenId`. See {ERC721-_burn}. * Brûle `tokenId`. Voir {ERC721-_burn}. * */ function burn(uint256 tokenId) public override { super.burn(tokenId); burnCounter += 1; } /** * * @dev withdrawAll: onlyOwner withdrawal to the beneficiary address * Retrait uniquement du propriétaire à l'adresse du bénéficiaire * */ function withdrawAll() external onlyOwner { (bool success, ) = treasuryAddress.call{value: address(this).balance}(""); if (!success) { revert TransferFailed(); } } /** * * @dev withdrawAmount: onlyOwner withdrawal to the treasury address, amount to withdraw as an argument Retrait du propriétaire uniquement à l'adresse du bénéficiaire, envoi * le montant à retirer en argument * */ function withdrawAmount(uint256 amount_) external onlyOwner { (bool success, ) = treasuryAddress.call{value: amount_}(""); if (!success) { revert TransferFailed(); } } /** * * @dev receive: Reject all direct payments to the contract except from owner. Rejeter tous les paiements directs au contrat, sauf du propriétaire. * */ receive() external payable { if (msg.sender != owner()) { revert OnlyOwnerCanFundContract(); } } /** * * @dev fallback: none * rien * */ fallback() external payable { revert NoFallback(); } }
// SPDX-License-Identifier: MIT // EPS Contracts v2.0.0 pragma solidity 0.8.16; /** * * @dev Interface for the EPS portal * */ /** * * @dev Returns the beneficiary of the `tokenId` token. * */ interface IEPSPortal { function beneficiaryOf( address tokenContract_, uint256 tokenId_, uint256 rightsIndex_ ) external view returns (address beneficiary_); /** * * @dev Returns the beneficiary balance for a contract. * */ function beneficiaryBalanceOf( address queryAddress_, address tokenContract_, uint256 rightsIndex_ ) external view returns (uint256 balance_); /** * * @dev Returns the proxied address details (cold and delivery address) for a passed hot address * */ function getAddresses(address _receivedAddress) external view returns ( address cold, address delivery, bool isProxied ); /** * @dev coldIsLive: Return if a cold wallet is live */ function coldIsLive(address cold_) external view returns (bool); /** * @dev hotIsLive: Return if a hot wallet is live */ function hotIsLive(address hot_) external view returns (bool); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; /** **************************************************************************** * @notice Interface for contracts using VRF randomness * ***************************************************************************** * @dev PURPOSE * * @dev Reggie the Random Oracle (not his real job) wants to provide randomness * @dev to Vera the verifier in such a way that Vera can be sure he's not * @dev making his output up to suit himself. Reggie provides Vera a public key * @dev to which he knows the secret key. Each time Vera provides a seed to * @dev Reggie, he gives back a value which is computed completely * @dev deterministically from the seed and the secret key. * * @dev Reggie provides a proof by which Vera can verify that the output was * @dev correctly computed once Reggie tells it to her, but without that proof, * @dev the output is indistinguishable to her from a uniform random sample * @dev from the output space. * * @dev The purpose of this contract is to make it easy for unrelated contracts * @dev to talk to Vera the verifier about the work Reggie is doing, to provide * @dev simple access to a verifiable source of randomness. It ensures 2 things: * @dev 1. The fulfillment came from the VRFCoordinator * @dev 2. The consumer contract implements fulfillRandomWords. * ***************************************************************************** * @dev USAGE * * @dev Calling contracts must inherit from VRFConsumerBase, and can * @dev initialize VRFConsumerBase's attributes in their constructor as * @dev shown: * * @dev contract VRFConsumer { * @dev constructor(<other arguments>, address _vrfCoordinator, address _link) * @dev VRFConsumerBase(_vrfCoordinator) public { * @dev <initialization with other arguments goes here> * @dev } * @dev } * * @dev The oracle will have given you an ID for the VRF keypair they have * @dev committed to (let's call it keyHash). Create subscription, fund it * @dev and your consumer contract as a consumer of it (see VRFCoordinatorInterface * @dev subscription management functions). * @dev Call requestRandomWords(keyHash, subId, minimumRequestConfirmations, * @dev callbackGasLimit, numWords), * @dev see (VRFCoordinatorInterface for a description of the arguments). * * @dev Once the VRFCoordinator has received and validated the oracle's response * @dev to your request, it will call your contract's fulfillRandomWords method. * * @dev The randomness argument to fulfillRandomWords is a set of random words * @dev generated from your requestId and the blockHash of the request. * * @dev If your contract could have concurrent requests open, you can use the * @dev requestId returned from requestRandomWords to track which response is associated * @dev with which randomness request. * @dev See "SECURITY CONSIDERATIONS" for principles to keep in mind, * @dev if your contract could have multiple requests in flight simultaneously. * * @dev Colliding `requestId`s are cryptographically impossible as long as seeds * @dev differ. * * ***************************************************************************** * @dev SECURITY CONSIDERATIONS * * @dev A method with the ability to call your fulfillRandomness method directly * @dev could spoof a VRF response with any random value, so it's critical that * @dev it cannot be directly called by anything other than this base contract * @dev (specifically, by the VRFConsumerBase.rawFulfillRandomness method). * * @dev For your users to trust that your contract's random behavior is free * @dev from malicious interference, it's best if you can write it so that all * @dev behaviors implied by a VRF response are executed *during* your * @dev fulfillRandomness method. If your contract must store the response (or * @dev anything derived from it) and use it later, you must ensure that any * @dev user-significant behavior which depends on that stored value cannot be * @dev manipulated by a subsequent VRF request. * * @dev Similarly, both miners and the VRF oracle itself have some influence * @dev over the order in which VRF responses appear on the blockchain, so if * @dev your contract could have multiple VRF requests in flight simultaneously, * @dev you must ensure that the order in which the VRF responses arrive cannot * @dev be used to manipulate your contract's user-significant behavior. * * @dev Since the block hash of the block which contains the requestRandomness * @dev call is mixed into the input to the VRF *last*, a sufficiently powerful * @dev miner could, in principle, fork the blockchain to evict the block * @dev containing the request, forcing the request to be included in a * @dev different block with a different hash, and therefore a different input * @dev to the VRF. However, such an attack would incur a substantial economic * @dev cost. This cost scales with the number of blocks the VRF oracle waits * @dev until it calls responds to a request. It is for this reason that * @dev that you can signal to an oracle you'd like them to wait longer before * @dev responding to the request (however this is not enforced in the contract * @dev and so remains effective only in the case of unmodified oracle software). */ abstract contract VRFConsumerBaseV2 { error OnlyCoordinatorCanFulfill(address have, address want); address private immutable vrfCoordinator; /** * @param _vrfCoordinator address of VRFCoordinator contract */ constructor(address _vrfCoordinator) { vrfCoordinator = _vrfCoordinator; } /** * @notice fulfillRandomness handles the VRF response. Your contract must * @notice implement it. See "SECURITY CONSIDERATIONS" above for important * @notice principles to keep in mind when implementing your fulfillRandomness * @notice method. * * @dev VRFConsumerBaseV2 expects its subcontracts to have a method with this * @dev signature, and will call it once it has verified the proof * @dev associated with the randomness. (It is triggered via a call to * @dev rawFulfillRandomness, below.) * * @param requestId The Id initially returned by requestRandomness * @param randomWords the VRF output expanded to the requested number of words */ function fulfillRandomWords(uint256 requestId, uint256[] memory randomWords) internal virtual; // rawFulfillRandomness is called by VRFCoordinator when it receives a valid VRF // proof. rawFulfillRandomness then calls fulfillRandomness, after validating // the origin of the call function rawFulfillRandomWords(uint256 requestId, uint256[] memory randomWords) external { if (msg.sender != vrfCoordinator) { revert OnlyCoordinatorCanFulfill(msg.sender, vrfCoordinator); } fulfillRandomWords(requestId, randomWords); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface VRFCoordinatorV2Interface { /** * @notice Get configuration relevant for making requests * @return minimumRequestConfirmations global min for request confirmations * @return maxGasLimit global max for request gas limit * @return s_provingKeyHashes list of registered key hashes */ function getRequestConfig() external view returns ( uint16, uint32, bytes32[] memory ); /** * @notice Request a set of random words. * @param keyHash - Corresponds to a particular oracle job which uses * that key for generating the VRF proof. Different keyHash's have different gas price * ceilings, so you can select a specific one to bound your maximum per request cost. * @param subId - The ID of the VRF subscription. Must be funded * with the minimum subscription balance required for the selected keyHash. * @param minimumRequestConfirmations - How many blocks you'd like the * oracle to wait before responding to the request. See SECURITY CONSIDERATIONS * for why you may want to request more. The acceptable range is * [minimumRequestBlockConfirmations, 200]. * @param callbackGasLimit - How much gas you'd like to receive in your * fulfillRandomWords callback. Note that gasleft() inside fulfillRandomWords * may be slightly less than this amount because of gas used calling the function * (argument decoding etc.), so you may need to request slightly more than you expect * to have inside fulfillRandomWords. The acceptable range is * [0, maxGasLimit] * @param numWords - The number of uint256 random values you'd like to receive * in your fulfillRandomWords callback. Note these numbers are expanded in a * secure way by the VRFCoordinator from a single random value supplied by the oracle. * @return requestId - A unique identifier of the request. Can be used to match * a request to a response in fulfillRandomWords. */ function requestRandomWords( bytes32 keyHash, uint64 subId, uint16 minimumRequestConfirmations, uint32 callbackGasLimit, uint32 numWords ) external returns (uint256 requestId); /** * @notice Create a VRF subscription. * @return subId - A unique subscription id. * @dev You can manage the consumer set dynamically with addConsumer/removeConsumer. * @dev Note to fund the subscription, use transferAndCall. For example * @dev LINKTOKEN.transferAndCall( * @dev address(COORDINATOR), * @dev amount, * @dev abi.encode(subId)); */ function createSubscription() external returns (uint64 subId); /** * @notice Get a VRF subscription. * @param subId - ID of the subscription * @return balance - LINK balance of the subscription in juels. * @return reqCount - number of requests for this subscription, determines fee tier. * @return owner - owner of the subscription. * @return consumers - list of consumer address which are able to use this subscription. */ function getSubscription(uint64 subId) external view returns ( uint96 balance, uint64 reqCount, address owner, address[] memory consumers ); /** * @notice Request subscription owner transfer. * @param subId - ID of the subscription * @param newOwner - proposed new owner of the subscription */ function requestSubscriptionOwnerTransfer(uint64 subId, address newOwner) external; /** * @notice Request subscription owner transfer. * @param subId - ID of the subscription * @dev will revert if original owner of subId has * not requested that msg.sender become the new owner. */ function acceptSubscriptionOwnerTransfer(uint64 subId) external; /** * @notice Add a consumer to a VRF subscription. * @param subId - ID of the subscription * @param consumer - New consumer which can use the subscription */ function addConsumer(uint64 subId, address consumer) external; /** * @notice Remove a consumer from a VRF subscription. * @param subId - ID of the subscription * @param consumer - Consumer to remove from the subscription */ function removeConsumer(uint64 subId, address consumer) external; /** * @notice Cancel a subscription * @param subId - ID of the subscription * @param to - Where to send the remaining LINK to */ function cancelSubscription(uint64 subId, address to) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/extensions/ERC721Burnable.sol) pragma solidity ^0.8.0; import "../ERC721.sol"; import "../../../utils/Context.sol"; /** * @title ERC721 Burnable Token * @dev ERC721 Token that can be burned (destroyed). */ abstract contract ERC721Burnable is Context, ERC721 { /** * @dev Burns `tokenId`. See {ERC721-_burn}. * * Requirements: * * - The caller must own `tokenId` or be an approved operator. */ function burn(uint256 tokenId) public virtual { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved"); _burn(tokenId); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { require(owner() == _msgSender(), "Ownable: caller is not the owner"); } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; import "./IERC721.sol"; import "./IERC721Receiver.sol"; import "./extensions/IERC721Metadata.sol"; import "../../utils/Address.sol"; import "../../utils/Context.sol"; import "../../utils/Strings.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: address zero is not a valid owner"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: invalid token ID"); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { _requireMinted(tokenId); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overridden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not token owner nor approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { _requireMinted(tokenId); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved"); _safeTransfer(from, to, tokenId, data); } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 tokenId, bytes memory data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { address owner = ERC721.ownerOf(tokenId); return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint( address to, uint256 tokenId, bytes memory data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer" ); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); _afterTokenTransfer(address(0), to, tokenId); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); _afterTokenTransfer(owner, address(0), tokenId); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); _afterTokenTransfer(from, to, tokenId); } /** * @dev Approve `to` to operate on `tokenId` * * Emits an {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Emits an {ApprovalForAll} event. */ function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC721: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Reverts if the `tokenId` has not been minted yet. */ function _requireMinted(uint256 tokenId) internal view virtual { require(_exists(tokenId), "ERC721: invalid token ID"); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { /// @solidity memory-safe-assembly assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
{ "optimizer": { "enabled": true, "runs": 200 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } } }
Contract Security Audit
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VRFCoordinatorV2Interface","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"vrfKeyHash","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"vrfNumWords","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"vrfRequestConfirmations","outputs":[{"internalType":"uint16","name":"","type":"uint16"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"vrfSubscriptionId","outputs":[{"internalType":"uint64","name":"","type":"uint64"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdrawAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount_","type":"uint256"}],"name":"withdrawAmount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
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
-----Decoded View---------------
Arg [0] : maxSupply_ (uint256): 7777
Arg [1] : publicMintPrice_ (uint256): 20000000000000000
Arg [2] : vrfCoordinator_ (address): 0x271682DEB8C4E0901D1a1550aD2e64D568E69909
Arg [3] : vrfKeyHash_ (bytes32): 0x8af398995b04c28e9951adb9721ef74c74f93e6a478f39e7e0777be13527e7ef
Arg [4] : treasuryAddress_ (address): 0xC107074693389d3538dB02FC31e8A044CAa0ad71
Arg [5] : eps_ (address): 0xb846e59af08e9695Fa7C4eD5743E81e623cAA218
Arg [6] : placeholderURI_ (string):
Arg [7] : baseURI_ (string):
-----Encoded View---------------
10 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000001e61
Arg [1] : 00000000000000000000000000000000000000000000000000470de4df820000
Arg [2] : 000000000000000000000000271682deb8c4e0901d1a1550ad2e64d568e69909
Arg [3] : 8af398995b04c28e9951adb9721ef74c74f93e6a478f39e7e0777be13527e7ef
Arg [4] : 000000000000000000000000c107074693389d3538db02fc31e8a044caa0ad71
Arg [5] : 000000000000000000000000b846e59af08e9695fa7c4ed5743e81e623caa218
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000100
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000120
Arg [8] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [9] : 0000000000000000000000000000000000000000000000000000000000000000
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