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0.8.19+commit.7dd6d404
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Solidity
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.1;
/// @author thirdweb, OpenZeppelin Contracts (v4.9.0)
/**
* @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
*
* Furthermore, `isContract` will also return true if the target contract within
* the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
* which only has an effect at the end of a transaction.
* ====
*
* [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://consensys.net/diligence/blog/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/v0.8.0/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 functionCallWithValue(target, data, 0, "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");
(bool success, bytes memory returndata) = target.call{ value: value }(data);
return verifyCallResultFromTarget(target, 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) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, 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) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or 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 {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// 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: Apache-2.0
pragma solidity ^0.8.0;
/// @author thirdweb
/**
* @title Batch-mint Metadata
* @notice The `BatchMintMetadata` is a contract extension for any base NFT contract. It lets the smart contract
* using this extension set metadata for `n` number of NFTs all at once. This is enabled by storing a single
* base URI for a batch of `n` NFTs, where the metadata for each NFT in a relevant batch is `baseURI/tokenId`.
*/
contract BatchMintMetadata {
/// @dev Invalid index for batch
error BatchMintInvalidBatchId(uint256 index);
/// @dev Invalid token
error BatchMintInvalidTokenId(uint256 tokenId);
/// @dev Metadata frozen
error BatchMintMetadataFrozen(uint256 batchId);
/// @dev Largest tokenId of each batch of tokens with the same baseURI + 1 {ex: batchId 100 at position 0 includes tokens 0-99}
uint256[] private batchIds;
/// @dev Mapping from id of a batch of tokens => to base URI for the respective batch of tokens.
mapping(uint256 => string) private baseURI;
/// @dev Mapping from id of a batch of tokens => to whether the base URI for the respective batch of tokens is frozen.
mapping(uint256 => bool) public batchFrozen;
/// @dev This event emits when the metadata of all tokens are frozen.
/// While not currently supported by marketplaces, this event allows
/// future indexing if desired.
event MetadataFrozen();
// @dev This event emits when the metadata of a range of tokens is updated.
/// So that the third-party platforms such as NFT market could
/// timely update the images and related attributes of the NFTs.
event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId);
/**
* @notice Returns the count of batches of NFTs.
* @dev Each batch of tokens has an in ID and an associated `baseURI`.
* See {batchIds}.
*/
function getBaseURICount() public view returns (uint256) {
return batchIds.length;
}
/**
* @notice Returns the ID for the batch of tokens at the given index.
* @dev See {getBaseURICount}.
* @param _index Index of the desired batch in batchIds array.
*/
function getBatchIdAtIndex(uint256 _index) public view returns (uint256) {
if (_index >= getBaseURICount()) {
revert BatchMintInvalidBatchId(_index);
}
return batchIds[_index];
}
/// @dev Returns the id for the batch of tokens the given tokenId belongs to.
function _getBatchId(uint256 _tokenId) internal view returns (uint256 batchId, uint256 index) {
uint256 numOfTokenBatches = getBaseURICount();
uint256[] memory indices = batchIds;
for (uint256 i = 0; i < numOfTokenBatches; i += 1) {
if (_tokenId < indices[i]) {
index = i;
batchId = indices[i];
return (batchId, index);
}
}
revert BatchMintInvalidTokenId(_tokenId);
}
/// @dev Returns the baseURI for a token. The intended metadata URI for the token is baseURI + tokenId.
function _getBaseURI(uint256 _tokenId) internal view returns (string memory) {
uint256 numOfTokenBatches = getBaseURICount();
uint256[] memory indices = batchIds;
for (uint256 i = 0; i < numOfTokenBatches; i += 1) {
if (_tokenId < indices[i]) {
return baseURI[indices[i]];
}
}
revert BatchMintInvalidTokenId(_tokenId);
}
/// @dev returns the starting tokenId of a given batchId.
function _getBatchStartId(uint256 _batchID) internal view returns (uint256) {
uint256 numOfTokenBatches = getBaseURICount();
uint256[] memory indices = batchIds;
for (uint256 i = 0; i < numOfTokenBatches; i++) {
if (_batchID == indices[i]) {
if (i > 0) {
return indices[i - 1];
}
return 0;
}
}
revert BatchMintInvalidBatchId(_batchID);
}
/// @dev Sets the base URI for the batch of tokens with the given batchId.
function _setBaseURI(uint256 _batchId, string memory _baseURI) internal {
if (batchFrozen[_batchId]) {
revert BatchMintMetadataFrozen(_batchId);
}
baseURI[_batchId] = _baseURI;
emit BatchMetadataUpdate(_getBatchStartId(_batchId), _batchId);
}
/// @dev Freezes the base URI for the batch of tokens with the given batchId.
function _freezeBaseURI(uint256 _batchId) internal {
string memory baseURIForBatch = baseURI[_batchId];
if (bytes(baseURIForBatch).length == 0) {
revert BatchMintInvalidBatchId(_batchId);
}
batchFrozen[_batchId] = true;
emit MetadataFrozen();
}
/// @dev Mints a batch of tokenIds and associates a common baseURI to all those Ids.
function _batchMintMetadata(
uint256 _startId,
uint256 _amountToMint,
string memory _baseURIForTokens
) internal returns (uint256 nextTokenIdToMint, uint256 batchId) {
batchId = _startId + _amountToMint;
nextTokenIdToMint = batchId;
batchIds.push(batchId);
baseURI[batchId] = _baseURIForTokens;
}
}
// 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: Apache-2.0
pragma solidity ^0.8.0;
/// @author thirdweb
import "./interface/IContractMetadata.sol";
/**
* @title Contract Metadata
* @notice Thirdweb's `ContractMetadata` is a contract extension for any base contracts. It lets you set a metadata URI
* for you contract.
* Additionally, `ContractMetadata` is necessary for NFT contracts that want royalties to get distributed on OpenSea.
*/
abstract contract ContractMetadata is IContractMetadata {
/// @dev The sender is not authorized to perform the action
error ContractMetadataUnauthorized();
/// @notice Returns the contract metadata URI.
string public override contractURI;
/**
* @notice Lets a contract admin set the URI for contract-level metadata.
* @dev Caller should be authorized to setup contractURI, e.g. contract admin.
* See {_canSetContractURI}.
* Emits {ContractURIUpdated Event}.
*
* @param _uri keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
*/
function setContractURI(string memory _uri) external override {
if (!_canSetContractURI()) {
revert ContractMetadataUnauthorized();
}
_setupContractURI(_uri);
}
/// @dev Lets a contract admin set the URI for contract-level metadata.
function _setupContractURI(string memory _uri) internal {
string memory prevURI = contractURI;
contractURI = _uri;
emit ContractURIUpdated(prevURI, _uri);
}
/// @dev Returns whether contract metadata can be set in the given execution context.
function _canSetContractURI() internal view virtual returns (bool);
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
/// @author thirdweb
// Helper interfaces
import { IWETH } from "../infra/interface/IWETH.sol";
import { SafeERC20, IERC20 } from "../external-deps/openzeppelin/token/ERC20/utils/SafeERC20.sol";
library CurrencyTransferLib {
using SafeERC20 for IERC20;
error CurrencyTransferLibMismatchedValue(uint256 expected, uint256 actual);
error CurrencyTransferLibFailedNativeTransfer(address recipient, uint256 value);
/// @dev The address interpreted as native token of the chain.
address public constant NATIVE_TOKEN = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
/// @dev Transfers a given amount of currency.
function transferCurrency(address _currency, address _from, address _to, uint256 _amount) internal {
if (_amount == 0) {
return;
}
if (_currency == NATIVE_TOKEN) {
safeTransferNativeToken(_to, _amount);
} else {
safeTransferERC20(_currency, _from, _to, _amount);
}
}
/// @dev Transfers a given amount of currency. (With native token wrapping)
function transferCurrencyWithWrapper(
address _currency,
address _from,
address _to,
uint256 _amount,
address _nativeTokenWrapper
) internal {
if (_amount == 0) {
return;
}
if (_currency == NATIVE_TOKEN) {
if (_from == address(this)) {
// withdraw from weth then transfer withdrawn native token to recipient
IWETH(_nativeTokenWrapper).withdraw(_amount);
safeTransferNativeTokenWithWrapper(_to, _amount, _nativeTokenWrapper);
} else if (_to == address(this)) {
// store native currency in weth
if (_amount != msg.value) {
revert CurrencyTransferLibMismatchedValue(msg.value, _amount);
}
IWETH(_nativeTokenWrapper).deposit{ value: _amount }();
} else {
safeTransferNativeTokenWithWrapper(_to, _amount, _nativeTokenWrapper);
}
} else {
safeTransferERC20(_currency, _from, _to, _amount);
}
}
/// @dev Transfer `amount` of ERC20 token from `from` to `to`.
function safeTransferERC20(address _currency, address _from, address _to, uint256 _amount) internal {
if (_from == _to) {
return;
}
if (_from == address(this)) {
IERC20(_currency).safeTransfer(_to, _amount);
} else {
IERC20(_currency).safeTransferFrom(_from, _to, _amount);
}
}
/// @dev Transfers `amount` of native token to `to`.
function safeTransferNativeToken(address to, uint256 value) internal {
// solhint-disable avoid-low-level-calls
// slither-disable-next-line low-level-calls
(bool success, ) = to.call{ value: value }("");
if (!success) {
revert CurrencyTransferLibFailedNativeTransfer(to, value);
}
}
/// @dev Transfers `amount` of native token to `to`. (With native token wrapping)
function safeTransferNativeTokenWithWrapper(address to, uint256 value, address _nativeTokenWrapper) internal {
// solhint-disable avoid-low-level-calls
// slither-disable-next-line low-level-calls
(bool success, ) = to.call{ value: value }("");
if (!success) {
IWETH(_nativeTokenWrapper).deposit{ value: value }();
IERC20(_nativeTokenWrapper).safeTransfer(to, value);
}
}
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
/// @author thirdweb
import "./interface/IDelayedReveal.sol";
/**
* @title Delayed Reveal
* @notice Thirdweb's `DelayedReveal` is a contract extension for base NFT contracts. It lets you create batches of
* 'delayed-reveal' NFTs. You can learn more about the usage of delayed reveal NFTs here - https://blog.thirdweb.com/delayed-reveal-nfts
*/
abstract contract DelayedReveal is IDelayedReveal {
/// @dev The contract doesn't have any url to be delayed revealed
error DelayedRevealNothingToReveal();
/// @dev The result of the returned an incorrect hash
error DelayedRevealIncorrectResultHash(bytes32 expected, bytes32 actual);
/// @dev Mapping from tokenId of a batch of tokens => to delayed reveal data.
mapping(uint256 => bytes) public encryptedData;
/// @dev Sets the delayed reveal data for a batchId.
function _setEncryptedData(uint256 _batchId, bytes memory _encryptedData) internal {
encryptedData[_batchId] = _encryptedData;
}
/**
* @notice Returns revealed URI for a batch of NFTs.
* @dev Reveal encrypted base URI for `_batchId` with caller/admin's `_key` used for encryption.
* Reverts if there's no encrypted URI for `_batchId`.
* See {encryptDecrypt}.
*
* @param _batchId ID of the batch for which URI is being revealed.
* @param _key Secure key used by caller/admin for encryption of baseURI.
*
* @return revealedURI Decrypted base URI.
*/
function getRevealURI(uint256 _batchId, bytes calldata _key) public view returns (string memory revealedURI) {
bytes memory data = encryptedData[_batchId];
if (data.length == 0) {
revert DelayedRevealNothingToReveal();
}
(bytes memory encryptedURI, bytes32 provenanceHash) = abi.decode(data, (bytes, bytes32));
revealedURI = string(encryptDecrypt(encryptedURI, _key));
if (keccak256(abi.encodePacked(revealedURI, _key, block.chainid)) != provenanceHash) {
revert DelayedRevealIncorrectResultHash(
provenanceHash,
keccak256(abi.encodePacked(revealedURI, _key, block.chainid))
);
}
}
/**
* @notice Encrypt/decrypt data on chain.
* @dev Encrypt/decrypt given `data` with `key`. Uses inline assembly.
* See: https://ethereum.stackexchange.com/questions/69825/decrypt-message-on-chain
*
* @param data Bytes of data to encrypt/decrypt.
* @param key Secure key used by caller for encryption/decryption.
*
* @return result Output after encryption/decryption of given data.
*/
function encryptDecrypt(bytes memory data, bytes calldata key) public pure override returns (bytes memory result) {
// Store data length on stack for later use
uint256 length = data.length;
// solhint-disable-next-line no-inline-assembly
assembly {
// Set result to free memory pointer
result := mload(0x40)
// Increase free memory pointer by lenght + 32
mstore(0x40, add(add(result, length), 32))
// Set result length
mstore(result, length)
}
// Iterate over the data stepping by 32 bytes
for (uint256 i = 0; i < length; i += 32) {
// Generate hash of the key and offset
bytes32 hash = keccak256(abi.encodePacked(key, i));
bytes32 chunk;
// solhint-disable-next-line no-inline-assembly
assembly {
// Read 32-bytes data chunk
chunk := mload(add(data, add(i, 32)))
}
// XOR the chunk with hash
chunk ^= hash;
// solhint-disable-next-line no-inline-assembly
assembly {
// Write 32-byte encrypted chunk
mstore(add(result, add(i, 32)), chunk)
}
}
}
/**
* @notice Returns whether the relvant batch of NFTs is subject to a delayed reveal.
* @dev Returns `true` if `_batchId`'s base URI is encrypted.
* @param _batchId ID of a batch of NFTs.
*/
function isEncryptedBatch(uint256 _batchId) public view returns (bool) {
return encryptedData[_batchId].length > 0;
}
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
/// @author thirdweb
import "./interface/IDropSinglePhase.sol";
import "../lib/MerkleProof.sol";
abstract contract DropSinglePhase is IDropSinglePhase {
/// @dev The sender is not authorized to perform the action
error DropUnauthorized();
/// @dev Exceeded the max token total supply
error DropExceedMaxSupply();
/// @dev No active claim condition
error DropNoActiveCondition();
/// @dev Claim condition invalid currency or price
error DropClaimInvalidTokenPrice(
address expectedCurrency,
uint256 expectedPricePerToken,
address actualCurrency,
uint256 actualExpectedPricePerToken
);
/// @dev Claim condition exceeded limit
error DropClaimExceedLimit(uint256 expected, uint256 actual);
/// @dev Claim condition exceeded max supply
error DropClaimExceedMaxSupply(uint256 expected, uint256 actual);
/// @dev Claim condition not started yet
error DropClaimNotStarted(uint256 expected, uint256 actual);
/*///////////////////////////////////////////////////////////////
State variables
//////////////////////////////////////////////////////////////*/
/// @dev The active conditions for claiming tokens.
ClaimCondition public claimCondition;
/// @dev The ID for the active claim condition.
bytes32 private conditionId;
/*///////////////////////////////////////////////////////////////
Mappings
//////////////////////////////////////////////////////////////*/
/**
* @dev Map from a claim condition uid and account to supply claimed by account.
*/
mapping(bytes32 => mapping(address => uint256)) private supplyClaimedByWallet;
/*///////////////////////////////////////////////////////////////
Drop logic
//////////////////////////////////////////////////////////////*/
/// @dev Lets an account claim tokens.
function claim(
address _receiver,
uint256 _quantity,
address _currency,
uint256 _pricePerToken,
AllowlistProof calldata _allowlistProof,
bytes memory _data
) public payable virtual override {
_beforeClaim(_receiver, _quantity, _currency, _pricePerToken, _allowlistProof, _data);
bytes32 activeConditionId = conditionId;
verifyClaim(_dropMsgSender(), _quantity, _currency, _pricePerToken, _allowlistProof);
// Update contract state.
claimCondition.supplyClaimed += _quantity;
supplyClaimedByWallet[activeConditionId][_dropMsgSender()] += _quantity;
// If there's a price, collect price.
_collectPriceOnClaim(address(0), _quantity, _currency, _pricePerToken);
// Mint the relevant NFTs to claimer.
uint256 startTokenId = _transferTokensOnClaim(_receiver, _quantity);
emit TokensClaimed(_dropMsgSender(), _receiver, startTokenId, _quantity);
_afterClaim(_receiver, _quantity, _currency, _pricePerToken, _allowlistProof, _data);
}
/// @dev Lets a contract admin set claim conditions.
function setClaimConditions(ClaimCondition calldata _condition, bool _resetClaimEligibility) external override {
if (!_canSetClaimConditions()) {
revert DropUnauthorized();
}
bytes32 targetConditionId = conditionId;
uint256 supplyClaimedAlready = claimCondition.supplyClaimed;
if (_resetClaimEligibility) {
supplyClaimedAlready = 0;
targetConditionId = keccak256(abi.encodePacked(_dropMsgSender(), block.number));
}
if (supplyClaimedAlready > _condition.maxClaimableSupply) {
revert DropExceedMaxSupply();
}
claimCondition = ClaimCondition({
startTimestamp: _condition.startTimestamp,
maxClaimableSupply: _condition.maxClaimableSupply,
supplyClaimed: supplyClaimedAlready,
quantityLimitPerWallet: _condition.quantityLimitPerWallet,
merkleRoot: _condition.merkleRoot,
pricePerToken: _condition.pricePerToken,
currency: _condition.currency,
metadata: _condition.metadata
});
conditionId = targetConditionId;
emit ClaimConditionUpdated(_condition, _resetClaimEligibility);
}
/// @dev Checks a request to claim NFTs against the active claim condition's criteria.
function verifyClaim(
address _claimer,
uint256 _quantity,
address _currency,
uint256 _pricePerToken,
AllowlistProof calldata _allowlistProof
) public view virtual returns (bool isOverride) {
ClaimCondition memory currentClaimPhase = claimCondition;
uint256 claimLimit = currentClaimPhase.quantityLimitPerWallet;
uint256 claimPrice = currentClaimPhase.pricePerToken;
address claimCurrency = currentClaimPhase.currency;
/*
* Here `isOverride` implies that if the merkle proof verification fails,
* the claimer would claim through open claim limit instead of allowlisted limit.
*/
if (currentClaimPhase.merkleRoot != bytes32(0)) {
(isOverride, ) = MerkleProof.verify(
_allowlistProof.proof,
currentClaimPhase.merkleRoot,
keccak256(
abi.encodePacked(
_claimer,
_allowlistProof.quantityLimitPerWallet,
_allowlistProof.pricePerToken,
_allowlistProof.currency
)
)
);
}
if (isOverride) {
claimLimit = _allowlistProof.quantityLimitPerWallet != 0
? _allowlistProof.quantityLimitPerWallet
: claimLimit;
claimPrice = _allowlistProof.pricePerToken != type(uint256).max
? _allowlistProof.pricePerToken
: claimPrice;
claimCurrency = _allowlistProof.pricePerToken != type(uint256).max && _allowlistProof.currency != address(0)
? _allowlistProof.currency
: claimCurrency;
}
uint256 _supplyClaimedByWallet = supplyClaimedByWallet[conditionId][_claimer];
if (_currency != claimCurrency || _pricePerToken != claimPrice) {
revert DropClaimInvalidTokenPrice(_currency, _pricePerToken, claimCurrency, claimPrice);
}
if (_quantity == 0 || (_quantity + _supplyClaimedByWallet > claimLimit)) {
revert DropClaimExceedLimit(claimLimit, _quantity + _supplyClaimedByWallet);
}
if (currentClaimPhase.supplyClaimed + _quantity > currentClaimPhase.maxClaimableSupply) {
revert DropClaimExceedMaxSupply(
currentClaimPhase.maxClaimableSupply,
currentClaimPhase.supplyClaimed + _quantity
);
}
if (currentClaimPhase.startTimestamp > block.timestamp) {
revert DropClaimNotStarted(currentClaimPhase.startTimestamp, block.timestamp);
}
}
/// @dev Returns the supply claimed by claimer for active conditionId.
function getSupplyClaimedByWallet(address _claimer) public view returns (uint256) {
return supplyClaimedByWallet[conditionId][_claimer];
}
/*////////////////////////////////////////////////////////////////////
Optional hooks that can be implemented in the derived contract
///////////////////////////////////////////////////////////////////*/
/// @dev Exposes the ability to override the msg sender.
function _dropMsgSender() internal virtual returns (address) {
return msg.sender;
}
/// @dev Runs before every `claim` function call.
function _beforeClaim(
address _receiver,
uint256 _quantity,
address _currency,
uint256 _pricePerToken,
AllowlistProof calldata _allowlistProof,
bytes memory _data
) internal virtual {}
/// @dev Runs after every `claim` function call.
function _afterClaim(
address _receiver,
uint256 _quantity,
address _currency,
uint256 _pricePerToken,
AllowlistProof calldata _allowlistProof,
bytes memory _data
) internal virtual {}
/// @dev Collects and distributes the primary sale value of NFTs being claimed.
function _collectPriceOnClaim(
address _primarySaleRecipient,
uint256 _quantityToClaim,
address _currency,
uint256 _pricePerToken
) internal virtual;
/// @dev Transfers the NFTs being claimed.
function _transferTokensOnClaim(
address _to,
uint256 _quantityBeingClaimed
) internal virtual returns (uint256 startTokenId);
function _canSetClaimConditions() internal view virtual returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./interface/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
// ERC721A Contracts v3.3.0
// Creator: Chiru Labs
pragma solidity ^0.8.4;
////////// CHANGELOG: turn `approve` to virtual //////////
import "./interface/IERC721A.sol";
import "./interface/IERC721Receiver.sol";
import "../lib/Address.sol";
import "../external-deps/openzeppelin/utils/Context.sol";
import "../lib/Strings.sol";
import "./ERC165.sol";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension. Built to optimize for lower gas during batch mints.
*
* Assumes serials are sequentially minted starting at _startTokenId() (defaults to 0, e.g. 0, 1, 2, 3..).
*
* Assumes that an owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
*
* Assumes that the maximum token id cannot exceed 2**256 - 1 (max value of uint256).
*/
contract ERC721A is Context, ERC165, IERC721A {
using Address for address;
using Strings for uint256;
// The tokenId of the next token to be minted.
uint256 internal _currentIndex;
// The number of tokens burned.
uint256 internal _burnCounter;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See _ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) internal _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// 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;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
_currentIndex = _startTokenId();
}
/**
* To change the starting tokenId, please override this function.
*/
function _startTokenId() internal view virtual returns (uint256) {
return 0;
}
/**
* @dev Burned tokens are calculated here, use _totalMinted() if you want to count just minted tokens.
*/
function totalSupply() public view override returns (uint256) {
// Counter underflow is impossible as _burnCounter cannot be incremented
// more than _currentIndex - _startTokenId() times
unchecked {
return _currentIndex - _burnCounter - _startTokenId();
}
}
/**
* Returns the total amount of tokens minted in the contract.
*/
function _totalMinted() internal view returns (uint256) {
// Counter underflow is impossible as _currentIndex does not decrement,
// and it is initialized to _startTokenId()
unchecked {
return _currentIndex - _startTokenId();
}
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165) returns (bool) {
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
if (owner == address(0)) revert BalanceQueryForZeroAddress();
return uint256(_addressData[owner].balance);
}
/**
* Returns the number of tokens minted by `owner`.
*/
function _numberMinted(address owner) internal view returns (uint256) {
return uint256(_addressData[owner].numberMinted);
}
/**
* Returns the number of tokens burned by or on behalf of `owner`.
*/
function _numberBurned(address owner) internal view returns (uint256) {
return uint256(_addressData[owner].numberBurned);
}
/**
* Returns the auxillary data for `owner`. (e.g. number of whitelist mint slots used).
*/
function _getAux(address owner) internal view returns (uint64) {
return _addressData[owner].aux;
}
/**
* Sets the auxillary data for `owner`. (e.g. number of whitelist mint slots used).
* If there are multiple variables, please pack them into a uint64.
*/
function _setAux(address owner, uint64 aux) internal {
_addressData[owner].aux = aux;
}
/**
* Gas spent here starts off proportional to the maximum mint batch size.
* It gradually moves to O(1) as tokens get transferred around in the collection over time.
*/
function _ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
uint256 curr = tokenId;
unchecked {
if (_startTokenId() <= curr)
if (curr < _currentIndex) {
TokenOwnership memory ownership = _ownerships[curr];
if (!ownership.burned) {
if (ownership.addr != address(0)) {
return ownership;
}
// Invariant:
// There will always be an ownership that has an address and is not burned
// before an ownership that does not have an address and is not burned.
// Hence, curr will not underflow.
while (true) {
curr--;
ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
}
}
}
revert OwnerQueryForNonexistentToken();
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return _ownershipOf(tokenId).addr;
}
/**
* @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) {
if (!_exists(tokenId)) revert URIQueryForNonexistentToken();
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 overriden 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 = ERC721A.ownerOf(tokenId);
if (to == owner) revert ApprovalToCurrentOwner();
if (_msgSender() != owner)
if (!isApprovedForAll(owner, _msgSender())) {
revert ApprovalCallerNotOwnerNorApproved();
}
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view override returns (address) {
if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
if (operator == _msgSender()) revert ApproveToCaller();
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_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 {
_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 {
_transfer(from, to, tokenId);
if (to.isContract())
if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {
revert TransferToNonERC721ReceiverImplementer();
}
}
/**
* @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`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return _startTokenId() <= tokenId && tokenId < _currentIndex && !_ownerships[tokenId].burned;
}
/**
* @dev Equivalent to `_safeMint(to, quantity, '')`.
*/
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Safely mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - If `to` refers to a smart contract, it must implement
* {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 quantity, bytes memory _data) internal {
uint256 startTokenId = _currentIndex;
if (to == address(0)) revert MintToZeroAddress();
if (quantity == 0) revert MintZeroQuantity();
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
// Overflows are incredibly unrealistic.
// balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1
// updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1
unchecked {
_addressData[to].balance += uint64(quantity);
_addressData[to].numberMinted += uint64(quantity);
_ownerships[startTokenId].addr = to;
_ownerships[startTokenId].startTimestamp = uint64(block.timestamp);
uint256 updatedIndex = startTokenId;
uint256 end = updatedIndex + quantity;
if (to.isContract()) {
do {
emit Transfer(address(0), to, updatedIndex);
if (!_checkContractOnERC721Received(address(0), to, updatedIndex++, _data)) {
revert TransferToNonERC721ReceiverImplementer();
}
} while (updatedIndex < end);
// Reentrancy protection
if (_currentIndex != startTokenId) revert();
} else {
do {
emit Transfer(address(0), to, updatedIndex++);
} while (updatedIndex < end);
}
_currentIndex = updatedIndex;
}
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` must be greater than 0.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 quantity) internal {
uint256 startTokenId = _currentIndex;
if (to == address(0)) revert MintToZeroAddress();
if (quantity == 0) revert MintZeroQuantity();
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
// Overflows are incredibly unrealistic.
// balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1
// updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1
unchecked {
_addressData[to].balance += uint64(quantity);
_addressData[to].numberMinted += uint64(quantity);
_ownerships[startTokenId].addr = to;
_ownerships[startTokenId].startTimestamp = uint64(block.timestamp);
uint256 updatedIndex = startTokenId;
uint256 end = updatedIndex + quantity;
do {
emit Transfer(address(0), to, updatedIndex++);
} while (updatedIndex < end);
_currentIndex = updatedIndex;
}
_afterTokenTransfers(address(0), to, startTokenId, quantity);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* 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) private {
TokenOwnership memory prevOwnership = _ownershipOf(tokenId);
if (prevOwnership.addr != from) revert TransferFromIncorrectOwner();
bool isApprovedOrOwner = (_msgSender() == from ||
isApprovedForAll(from, _msgSender()) ||
getApproved(tokenId) == _msgSender());
if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
if (to == address(0)) revert TransferToZeroAddress();
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, from);
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
// Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.
unchecked {
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
TokenOwnership storage currSlot = _ownerships[tokenId];
currSlot.addr = to;
currSlot.startTimestamp = uint64(block.timestamp);
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
TokenOwnership storage nextSlot = _ownerships[nextTokenId];
if (nextSlot.addr == address(0)) {
// This will suffice for checking _exists(nextTokenId),
// as a burned slot cannot contain the zero address.
if (nextTokenId != _currentIndex) {
nextSlot.addr = from;
nextSlot.startTimestamp = prevOwnership.startTimestamp;
}
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Equivalent to `_burn(tokenId, false)`.
*/
function _burn(uint256 tokenId) internal virtual {
_burn(tokenId, false);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
TokenOwnership memory prevOwnership = _ownershipOf(tokenId);
address from = prevOwnership.addr;
if (approvalCheck) {
bool isApprovedOrOwner = (_msgSender() == from ||
isApprovedForAll(from, _msgSender()) ||
getApproved(tokenId) == _msgSender());
if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
}
_beforeTokenTransfers(from, address(0), tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, from);
// Underflow of the sender's balance is impossible because we check for
// ownership above and the recipient's balance can't realistically overflow.
// Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.
unchecked {
AddressData storage addressData = _addressData[from];
addressData.balance -= 1;
addressData.numberBurned += 1;
// Keep track of who burned the token, and the timestamp of burning.
TokenOwnership storage currSlot = _ownerships[tokenId];
currSlot.addr = from;
currSlot.startTimestamp = uint64(block.timestamp);
currSlot.burned = true;
// If the ownership slot of tokenId+1 is not explicitly set, that means the burn initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
TokenOwnership storage nextSlot = _ownerships[nextTokenId];
if (nextSlot.addr == address(0)) {
// This will suffice for checking _exists(nextTokenId),
// as a burned slot cannot contain the zero address.
if (nextTokenId != _currentIndex) {
nextSlot.addr = from;
nextSlot.startTimestamp = prevOwnership.startTimestamp;
}
}
}
emit Transfer(from, address(0), tokenId);
_afterTokenTransfers(from, address(0), tokenId, 1);
// Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.
unchecked {
_burnCounter++;
}
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(address to, uint256 tokenId, address owner) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target 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 _checkContractOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert TransferToNonERC721ReceiverImplementer();
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
* And also called before burning one token.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* 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, `tokenId` will be burned by `from`.
* - `from` and `to` are never both zero.
*/
function _beforeTokenTransfers(address from, address to, uint256 startTokenId, uint256 quantity) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
* And also called after one token has been burned.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, `from`'s `tokenId` has been
* transferred to `to`.
* - When `from` is zero, `tokenId` has been minted for `to`.
* - When `to` is zero, `tokenId` has been burned by `from`.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(address from, address to, uint256 startTokenId, uint256 quantity) internal virtual {}
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
/// @author thirdweb
import { ERC721A, Context } from "../eip/ERC721AVirtualApprove.sol";
import "../extension/ContractMetadata.sol";
import "../extension/Multicall.sol";
import "../extension/Ownable.sol";
import "../extension/Royalty.sol";
import "../extension/BatchMintMetadata.sol";
import "../extension/PrimarySale.sol";
import "../extension/DropSinglePhase.sol";
import "../extension/LazyMint.sol";
import "../extension/DelayedReveal.sol";
import "../lib/Strings.sol";
import { CurrencyTransferLib } from "../lib/CurrencyTransferLib.sol";
/**
* BASE: ERC721A
* EXTENSION: DropSinglePhase
*
* The `ERC721Drop` contract implements the ERC721 NFT standard, along with the ERC721A optimization to the standard.
* It includes the following additions to standard ERC721 logic:
*
* - Contract metadata for royalty support on platforms such as OpenSea that use
* off-chain information to distribute roaylties.
*
* - Ownership of the contract, with the ability to restrict certain functions to
* only be called by the contract's owner.
*
* - Multicall capability to perform multiple actions atomically
*
* - EIP 2981 compliance for royalty support on NFT marketplaces.
*
* The `drop` mechanism in the `DropSinglePhase` extension is a distribution mechanism for lazy minted tokens. It lets
* you set restrictions such as a price to charge, an allowlist etc. when an address atttempts to mint lazy minted tokens.
*
* The `ERC721Drop` contract lets you lazy mint tokens, and distribute those lazy minted tokens via the drop mechanism.
*/
contract ERC721Drop is
ERC721A,
ContractMetadata,
Multicall,
Ownable,
Royalty,
BatchMintMetadata,
PrimarySale,
LazyMint,
DelayedReveal,
DropSinglePhase
{
using Strings for uint256;
/*///////////////////////////////////////////////////////////////
Constructor
//////////////////////////////////////////////////////////////*/
/**
* @notice Initializes the contract during construction.
*
* @param _defaultAdmin The default admin of the contract.
* @param _name The name of the contract.
* @param _symbol The symbol of the contract.
* @param _royaltyRecipient The address to receive royalties.
* @param _royaltyBps The royalty basis points to be charged. Max = 10000 (10000 = 100%, 1000 = 10%)
* @param _primarySaleRecipient The address to receive primary sale value.
*/
constructor(
address _defaultAdmin,
string memory _name,
string memory _symbol,
address _royaltyRecipient,
uint128 _royaltyBps,
address _primarySaleRecipient
) ERC721A(_name, _symbol) {
_setupOwner(_defaultAdmin);
_setupDefaultRoyaltyInfo(_royaltyRecipient, _royaltyBps);
_setupPrimarySaleRecipient(_primarySaleRecipient);
}
/*//////////////////////////////////////////////////////////////
ERC165 Logic
//////////////////////////////////////////////////////////////*/
/**
* @dev See ERC165: https://eips.ethereum.org/EIPS/eip-165
* @inheritdoc IERC165
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721A, IERC165) returns (bool) {
return
interfaceId == 0x01ffc9a7 || // ERC165 Interface ID for ERC165
interfaceId == 0x80ac58cd || // ERC165 Interface ID for ERC721
interfaceId == 0x5b5e139f || // ERC165 Interface ID for ERC721Metadata
interfaceId == type(IERC2981).interfaceId; // ERC165 ID for ERC2981
}
/*///////////////////////////////////////////////////////////////
Overriden ERC 721 logic
//////////////////////////////////////////////////////////////*/
/**
* @notice Returns the metadata URI for an NFT.
* @dev See `BatchMintMetadata` for handling of metadata in this contract.
*
* @param _tokenId The tokenId of an NFT.
*/
function tokenURI(uint256 _tokenId) public view virtual override returns (string memory) {
(uint256 batchId, ) = _getBatchId(_tokenId);
string memory batchUri = _getBaseURI(_tokenId);
if (isEncryptedBatch(batchId)) {
return string(abi.encodePacked(batchUri, "0"));
} else {
return string(abi.encodePacked(batchUri, _tokenId.toString()));
}
}
/*///////////////////////////////////////////////////////////////
Overriden lazy minting logic
//////////////////////////////////////////////////////////////*/
/**
* @notice Lets an authorized address lazy mint a given amount of NFTs.
*
* @param _amount The number of NFTs to lazy mint.
* @param _baseURIForTokens The placeholder base URI for the 'n' number of NFTs being lazy minted, where the
* metadata for each of those NFTs is `${baseURIForTokens}/${tokenId}`.
* @param _data The encrypted base URI + provenance hash for the batch of NFTs being lazy minted.
* @return batchId A unique integer identifier for the batch of NFTs lazy minted together.
*/
function lazyMint(
uint256 _amount,
string calldata _baseURIForTokens,
bytes calldata _data
) public virtual override returns (uint256 batchId) {
if (_data.length > 0) {
(bytes memory encryptedURI, bytes32 provenanceHash) = abi.decode(_data, (bytes, bytes32));
if (encryptedURI.length != 0 && provenanceHash != "") {
_setEncryptedData(nextTokenIdToLazyMint + _amount, _data);
}
}
return LazyMint.lazyMint(_amount, _baseURIForTokens, _data);
}
/// @notice The tokenId assigned to the next new NFT to be lazy minted.
function nextTokenIdToMint() public view virtual returns (uint256) {
return nextTokenIdToLazyMint;
}
/// @notice The tokenId assigned to the next new NFT to be claimed.
function nextTokenIdToClaim() public view virtual returns (uint256) {
return _currentIndex;
}
/*///////////////////////////////////////////////////////////////
Delayed reveal logic
//////////////////////////////////////////////////////////////*/
/**
* @notice Lets an authorized address reveal a batch of delayed reveal NFTs.
*
* @param _index The ID for the batch of delayed-reveal NFTs to reveal.
* @param _key The key with which the base URI for the relevant batch of NFTs was encrypted.
*/
function reveal(uint256 _index, bytes calldata _key) public virtual override returns (string memory revealedURI) {
require(_canReveal(), "Not authorized");
uint256 batchId = getBatchIdAtIndex(_index);
revealedURI = getRevealURI(batchId, _key);
_setEncryptedData(batchId, "");
_setBaseURI(batchId, revealedURI);
emit TokenURIRevealed(_index, revealedURI);
}
/*//////////////////////////////////////////////////////////////
Minting/burning logic
//////////////////////////////////////////////////////////////*/
/**
* @notice Lets an owner or approved operator burn the NFT of the given tokenId.
* @dev ERC721A's `_burn(uint256,bool)` internally checks for token approvals.
*
* @param _tokenId The tokenId of the NFT to burn.
*/
function burn(uint256 _tokenId) external virtual {
_burn(_tokenId, true);
}
/*///////////////////////////////////////////////////////////////
Internal functions
//////////////////////////////////////////////////////////////*/
/**
* @dev Runs before every `claim` function call.
*
* @param _quantity The quantity of NFTs being claimed.
*/
function _beforeClaim(
address,
uint256 _quantity,
address,
uint256,
AllowlistProof calldata,
bytes memory
) internal view virtual override {
if (_currentIndex + _quantity > nextTokenIdToLazyMint) {
revert("Not enough minted tokens");
}
}
/**
* @dev Collects and distributes the primary sale value of NFTs being claimed.
*
* @param _primarySaleRecipient The address to receive the primary sale value.
* @param _quantityToClaim The quantity of NFTs being claimed.
* @param _currency The currency in which the NFTs are being claimed.
* @param _pricePerToken The price per token in the given currency.
*/
function _collectPriceOnClaim(
address _primarySaleRecipient,
uint256 _quantityToClaim,
address _currency,
uint256 _pricePerToken
) internal virtual override {
if (_pricePerToken == 0) {
require(msg.value == 0, "!Value");
return;
}
uint256 totalPrice = _quantityToClaim * _pricePerToken;
bool validMsgValue;
if (_currency == CurrencyTransferLib.NATIVE_TOKEN) {
validMsgValue = msg.value == totalPrice;
} else {
validMsgValue = msg.value == 0;
}
require(validMsgValue, "Invalid msg value");
address saleRecipient = _primarySaleRecipient == address(0) ? primarySaleRecipient() : _primarySaleRecipient;
CurrencyTransferLib.transferCurrency(_currency, msg.sender, saleRecipient, totalPrice);
}
/**
* @dev Transfers the NFTs being claimed.
*
* @param _to The address to which the NFTs are being transferred.
* @param _quantityBeingClaimed The quantity of NFTs being claimed.
*/
function _transferTokensOnClaim(
address _to,
uint256 _quantityBeingClaimed
) internal virtual override returns (uint256 startTokenId) {
startTokenId = _currentIndex;
_safeMint(_to, _quantityBeingClaimed);
}
/// @dev Checks whether primary sale recipient can be set in the given execution context.
function _canSetPrimarySaleRecipient() internal view virtual override returns (bool) {
return msg.sender == owner();
}
/// @dev Checks whether owner can be set in the given execution context.
function _canSetOwner() internal view virtual override returns (bool) {
return msg.sender == owner();
}
/// @dev Checks whether royalty info can be set in the given execution context.
function _canSetRoyaltyInfo() internal view virtual override returns (bool) {
return msg.sender == owner();
}
/// @dev Checks whether contract metadata can be set in the given execution context.
function _canSetContractURI() internal view virtual override returns (bool) {
return msg.sender == owner();
}
/// @dev Checks whether platform fee info can be set in the given execution context.
function _canSetClaimConditions() internal view virtual override returns (bool) {
return msg.sender == owner();
}
/// @dev Returns whether lazy minting can be done in the given execution context.
function _canLazyMint() internal view virtual override returns (bool) {
return msg.sender == owner();
}
/// @dev Checks whether NFTs can be revealed in the given execution context.
function _canReveal() internal view virtual returns (bool) {
return msg.sender == owner();
}
/*///////////////////////////////////////////////////////////////
Miscellaneous
//////////////////////////////////////////////////////////////*/
function _dropMsgSender() internal view virtual override returns (address) {
return msg.sender;
}
/// @notice Returns the sender in the given execution context.
function _msgSender() internal view override(Multicall, Context) returns (address) {
return msg.sender;
}
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// OW###F***//// //
// O#&&###WFFF**////////////////// //
// /@@@##WWWWFF/O@%##WWOOFFFFFF///****FFFF*/// //
// F@%##WWW#WFF/O@@@@@@@@@@@&&####WOOOFFFFFFFFFFOO //
// *O#&####WW#W*F/F@&%%#%#%#%%&&@&@@@@@@@@@@@##WOOOO/ //
// F#%@@@####W#W#WFF*F@@@%%#%#######&&@@@O/ O@@@@@&FF/ //
// W%@@@@%#######W##WFFF/ W@@@@%&#%#&&@@@#* F##O /%@@#OF/ //
// O@@@#%############WFFFOW F%@@@@@@@@@W F&#O *#&O /&@OF O @@@@@@@@@O //
// O@&###############WFFF//&#* FFFF* #&O O##O F&O OWW///*O#F @@@#OWWW# /FOW FOW *FF* FOOOOO //
// O@##############W#OFFFO# W@%O* F#@&/ F@#F *#&O F&W / %* @@@FFFOOO F@@@@@@@@@# /@@@@@@@@FF@@@@@@@@W @@@@@@@@ //
// #@%#######%#######WFFF/ %&F /OW#WO #&O *FFF F&O F@@#OFFO#@&* @@@@@@@@@&@@@#FFO#@@@#@@@&FFO&#@@@@FFW@@@@@@@@WF*F //
// #@#######%######W#WFFFOO W@&W* /F#@% /#@@@@@@%* F&W /OOWO #/ @@@* @@@F @@@@@@% @@@@@@@@#OF/*%@@@@@@ //
// #@%#######%#######WFF*O@@W *O##WO F&@@&%%#%%@@&* F@&WF FW@@F @@@F O@@@@##&@@@@O@@@@##%@@%@@@@@WW@# &WFF#@@@O //
// #@################OFF*O@@@@@O* F#@@@%%#%###%#&&@%* *W#%WO O @@@F O&@@@@@@@@/ O@@@@@@@F %@@@@@@@ F@@@@@@@O //
// @@%#######%#######WFF*O@&&@@@@@@@@@@@&&%%#%#%%%#%#%&@@&OF *##O O&@@ /WWW ##%* W##* #&# //
// @@%%##############OFFFW@@@@@@@@@@@@@@@@@@@&@&@&@&&&@@@WOW#%&##* F#@@# #@@@@ W@@@ F@@@W @@@W /@@@ //
// W#@@&%%#%#%#######OFFFOWWOOOOOOOOOOFFFFFFFFFFFFFFFFFFFFFF @@@OW@@FW@@O# *@@@O #@@@& F@@@/*@@@@@@&/ @@@@@@@@@W //
// #@@@@@@@&&%%###&OFFFF**********************FFF*FFFFFFOO @@@F*@@WF@@ @@@@ @@@@@ @@@@@@@@OW@@@@@@@@@@&@@@@@O //
// /FO##&@@@&%%%O*FFFFFFFFFFFFFFFFFFOOOOOOOOWOWWWW#W O@@@@O O@@ @@@F#@@@@@&F@@@#@@@O@@@@@#O@@@ O@@@ //
// /*FOO####%FOFFFFFFFFFFFFFFFF***//////// /@@@@@@ @@@@@@//@@@@@WF#W @@@&WFO#@@@# //
// #@##WWW##&&@&W###%#&%&&&%@@@@@%%##WWOO &@@# W@@@ %@@@@@@@O O@@@@@@@@@* //
// /FOW#&@&OOOOOOFFF*// //
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
import "@thirdweb-dev/contracts/base/ERC721Drop.sol";
contract FacesOfWeb is ERC721Drop {
constructor(
address _defaultAdmin,
string memory _name,
string memory _symbol,
address _royaltyRecipient,
uint128 _royaltyBps,
address _primarySaleRecipient
)
ERC721Drop(
_defaultAdmin,
_name,
_symbol,
_royaltyRecipient,
_royaltyBps,
_primarySaleRecipient
)
{}
}// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
/// @author thirdweb
/**
* The interface `IClaimCondition` is written for thirdweb's 'Drop' contracts, which are distribution mechanisms for tokens.
*
* A claim condition defines criteria under which accounts can mint tokens. Claim conditions can be overwritten
* or added to by the contract admin. At any moment, there is only one active claim condition.
*/
interface IClaimCondition {
/**
* @notice The criteria that make up a claim condition.
*
* @param startTimestamp The unix timestamp after which the claim condition applies.
* The same claim condition applies until the `startTimestamp`
* of the next claim condition.
*
* @param maxClaimableSupply The maximum total number of tokens that can be claimed under
* the claim condition.
*
* @param supplyClaimed At any given point, the number of tokens that have been claimed
* under the claim condition.
*
* @param quantityLimitPerWallet The maximum number of tokens that can be claimed by a wallet.
*
* @param merkleRoot The allowlist of addresses that can claim tokens under the claim
* condition.
*
* @param pricePerToken The price required to pay per token claimed.
*
* @param currency The currency in which the `pricePerToken` must be paid.
*
* @param metadata Claim condition metadata.
*/
struct ClaimCondition {
uint256 startTimestamp;
uint256 maxClaimableSupply;
uint256 supplyClaimed;
uint256 quantityLimitPerWallet;
bytes32 merkleRoot;
uint256 pricePerToken;
address currency;
string metadata;
}
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
/// @author thirdweb
/**
* Thirdweb's `ContractMetadata` is a contract extension for any base contracts. It lets you set a metadata URI
* for you contract.
*
* Additionally, `ContractMetadata` is necessary for NFT contracts that want royalties to get distributed on OpenSea.
*/
interface IContractMetadata {
/// @dev Returns the metadata URI of the contract.
function contractURI() external view returns (string memory);
/**
* @dev Sets contract URI for the storefront-level metadata of the contract.
* Only module admin can call this function.
*/
function setContractURI(string calldata _uri) external;
/// @dev Emitted when the contract URI is updated.
event ContractURIUpdated(string prevURI, string newURI);
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
/// @author thirdweb
/**
* Thirdweb's `DelayedReveal` is a contract extension for base NFT contracts. It lets you create batches of
* 'delayed-reveal' NFTs. You can learn more about the usage of delayed reveal NFTs here - https://blog.thirdweb.com/delayed-reveal-nfts
*/
interface IDelayedReveal {
/// @dev Emitted when tokens are revealed.
event TokenURIRevealed(uint256 indexed index, string revealedURI);
/**
* @notice Reveals a batch of delayed reveal NFTs.
*
* @param identifier The ID for the batch of delayed-reveal NFTs to reveal.
*
* @param key The key with which the base URI for the relevant batch of NFTs was encrypted.
*/
function reveal(uint256 identifier, bytes calldata key) external returns (string memory revealedURI);
/**
* @notice Performs XOR encryption/decryption.
*
* @param data The data to encrypt. In the case of delayed-reveal NFTs, this is the "revealed" state
* base URI of the relevant batch of NFTs.
*
* @param key The key with which to encrypt data
*/
function encryptDecrypt(bytes memory data, bytes calldata key) external pure returns (bytes memory result);
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
/// @author thirdweb
import "./IClaimCondition.sol";
/**
* The interface `IDropSinglePhase` is written for thirdweb's 'DropSinglePhase' contracts, which are distribution mechanisms for tokens.
*
* An authorized wallet can set a claim condition for the distribution of the contract's tokens.
* A claim condition defines criteria under which accounts can mint tokens. Claim conditions can be overwritten
* or added to by the contract admin. At any moment, there is only one active claim condition.
*/
interface IDropSinglePhase is IClaimCondition {
/**
* @param proof Proof of concerned wallet's inclusion in an allowlist.
* @param quantityLimitPerWallet The total quantity of tokens the allowlisted wallet is eligible to claim over time.
* @param pricePerToken The price per token the allowlisted wallet must pay to claim tokens.
* @param currency The currency in which the allowlisted wallet must pay the price for claiming tokens.
*/
struct AllowlistProof {
bytes32[] proof;
uint256 quantityLimitPerWallet;
uint256 pricePerToken;
address currency;
}
/// @notice Emitted when tokens are claimed via `claim`.
event TokensClaimed(
address indexed claimer,
address indexed receiver,
uint256 indexed startTokenId,
uint256 quantityClaimed
);
/// @notice Emitted when the contract's claim conditions are updated.
event ClaimConditionUpdated(ClaimCondition condition, bool resetEligibility);
/**
* @notice Lets an account claim a given quantity of NFTs.
*
* @param receiver The receiver of the NFTs to claim.
* @param quantity The quantity of NFTs to claim.
* @param currency The currency in which to pay for the claim.
* @param pricePerToken The price per token to pay for the claim.
* @param allowlistProof The proof of the claimer's inclusion in the merkle root allowlist
* of the claim conditions that apply.
* @param data Arbitrary bytes data that can be leveraged in the implementation of this interface.
*/
function claim(
address receiver,
uint256 quantity,
address currency,
uint256 pricePerToken,
AllowlistProof calldata allowlistProof,
bytes memory data
) external payable;
/**
* @notice Lets a contract admin (account with `DEFAULT_ADMIN_ROLE`) set claim conditions.
*
* @param phase Claim condition to set.
*
* @param resetClaimEligibility Whether to honor the restrictions applied to wallets who have claimed tokens in the current conditions,
* in the new claim conditions being set.
*/
function setClaimConditions(ClaimCondition calldata phase, bool resetClaimEligibility) external;
}
// 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
* [EIP](https://eips.ethereum.org/EIPS/eip-165).
*
* 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
* [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
* 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);
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
/**
* @title ERC20 interface
* @dev see https://github.com/ethereum/EIPs/issues/20
*/
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address who) external view returns (uint256);
function allowance(address owner, address spender) external view returns (uint256);
function transfer(address to, uint256 value) external returns (bool);
function approve(address spender, uint256 value) external returns (bool);
function transferFrom(address from, address to, uint256 value) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
// SPDX-License-Identifier: Apache 2.0
pragma solidity ^0.8.0;
import "./IERC165.sol";
/**
* @dev Interface for the NFT Royalty Standard.
*
* A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal
* support for royalty payments across all NFT marketplaces and ecosystem participants.
*
* _Available since v4.5._
*/
interface IERC2981 is IERC165 {
/**
* @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of
* exchange. The royalty amount is denominated and should be payed in that same unit of exchange.
*/
function royaltyInfo(
uint256 tokenId,
uint256 salePrice
) external view returns (address receiver, uint256 royaltyAmount);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721 {
/**
* @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);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address);
/**
* @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 be 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 Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address);
/**
* @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 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);
/**
* @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;
}
// SPDX-License-Identifier: MIT
// ERC721A Contracts v3.3.0
// Creator: Chiru Labs
pragma solidity ^0.8.4;
import "./IERC721.sol";
import "./IERC721Metadata.sol";
/**
* @dev Interface of an ERC721A compliant contract.
*/
interface IERC721A is IERC721, IERC721Metadata {
/**
* The caller must own the token or be an approved operator.
*/
error ApprovalCallerNotOwnerNorApproved();
/**
* The token does not exist.
*/
error ApprovalQueryForNonexistentToken();
/**
* The caller cannot approve to their own address.
*/
error ApproveToCaller();
/**
* The caller cannot approve to the current owner.
*/
error ApprovalToCurrentOwner();
/**
* Cannot query the balance for the zero address.
*/
error BalanceQueryForZeroAddress();
/**
* Cannot mint to the zero address.
*/
error MintToZeroAddress();
/**
* The quantity of tokens minted must be more than zero.
*/
error MintZeroQuantity();
/**
* The token does not exist.
*/
error OwnerQueryForNonexistentToken();
/**
* The caller must own the token or be an approved operator.
*/
error TransferCallerNotOwnerNorApproved();
/**
* The token must be owned by `from`.
*/
error TransferFromIncorrectOwner();
/**
* Cannot safely transfer to a contract that does not implement the ERC721Receiver interface.
*/
error TransferToNonERC721ReceiverImplementer();
/**
* Cannot transfer to the zero address.
*/
error TransferToZeroAddress();
/**
* The token does not exist.
*/
error URIQueryForNonexistentToken();
// Compiler will pack this into a single 256bit word.
struct TokenOwnership {
// The address of the owner.
address addr;
// Keeps track of the start time of ownership with minimal overhead for tokenomics.
uint64 startTimestamp;
// Whether the token has been burned.
bool burned;
}
// Compiler will pack this into a single 256bit word.
struct AddressData {
// Realistically, 2**64-1 is more than enough.
uint64 balance;
// Keeps track of mint count with minimal overhead for tokenomics.
uint64 numberMinted;
// Keeps track of burn count with minimal overhead for tokenomics.
uint64 numberBurned;
// For miscellaneous variable(s) pertaining to the address
// (e.g. number of whitelist mint slots used).
// If there are multiple variables, please pack them into a uint64.
uint64 aux;
}
/**
* @dev Returns the total amount of tokens stored by the contract.
*
* Burned tokens are calculated here, use `_totalMinted()` if you want to count just minted tokens.
*/
function totalSupply() external view returns (uint256);
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
/// @title ERC-721 Non-Fungible Token Standard, optional metadata extension
/// @dev See https://eips.ethereum.org/EIPS/eip-721
/// Note: the ERC-165 identifier for this interface is 0x5b5e139f.
/* is ERC721 */
interface IERC721Metadata {
/// @notice A descriptive name for a collection of NFTs in this contract
function name() external view returns (string memory);
/// @notice An abbreviated name for NFTs in this contract
function symbol() external view returns (string memory);
/// @notice A distinct Uniform Resource Identifier (URI) for a given asset.
/// @dev Throws if `_tokenId` is not a valid NFT. URIs are defined in RFC
/// 3986. The URI may point to a JSON file that conforms to the "ERC721
/// Metadata JSON Schema".
function tokenURI(uint256 _tokenId) external view returns (string memory);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 `IERC721.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
/// @author thirdweb
/**
* Thirdweb's `LazyMint` is a contract extension for any base NFT contract. It lets you 'lazy mint' any number of NFTs
* at once. Here, 'lazy mint' means defining the metadata for particular tokenIds of your NFT contract, without actually
* minting a non-zero balance of NFTs of those tokenIds.
*/
interface ILazyMint {
/// @dev Emitted when tokens are lazy minted.
event TokensLazyMinted(uint256 indexed startTokenId, uint256 endTokenId, string baseURI, bytes encryptedBaseURI);
/**
* @notice Lazy mints a given amount of NFTs.
*
* @param amount The number of NFTs to lazy mint.
*
* @param baseURIForTokens The base URI for the 'n' number of NFTs being lazy minted, where the metadata for each
* of those NFTs is `${baseURIForTokens}/${tokenId}`.
*
* @param extraData Additional bytes data to be used at the discretion of the consumer of the contract.
*
* @return batchId A unique integer identifier for the batch of NFTs lazy minted together.
*/
function lazyMint(
uint256 amount,
string calldata baseURIForTokens,
bytes calldata extraData
) external returns (uint256 batchId);
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/// @author thirdweb
/**
* @dev Provides a function to batch together multiple calls in a single external call.
*
* _Available since v4.1._
*/
interface IMulticall {
/**
* @dev Receives and executes a batch of function calls on this contract.
*/
function multicall(bytes[] calldata data) external returns (bytes[] memory results);
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
/// @author thirdweb
/**
* Thirdweb's `Ownable` is a contract extension to be used with any base contract. It exposes functions for setting and reading
* who the 'owner' of the inheriting smart contract is, and lets the inheriting contract perform conditional logic that uses
* information about who the contract's owner is.
*/
interface IOwnable {
/// @dev Returns the owner of the contract.
function owner() external view returns (address);
/// @dev Lets a module admin set a new owner for the contract. The new owner must be a module admin.
function setOwner(address _newOwner) external;
/// @dev Emitted when a new Owner is set.
event OwnerUpdated(address indexed prevOwner, address indexed newOwner);
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
/// @author thirdweb
/**
* Thirdweb's `Primary` is a contract extension to be used with any base contract. It exposes functions for setting and reading
* the recipient of primary sales, and lets the inheriting contract perform conditional logic that uses information about
* primary sales, if desired.
*/
interface IPrimarySale {
/// @dev The adress that receives all primary sales value.
function primarySaleRecipient() external view returns (address);
/// @dev Lets a module admin set the default recipient of all primary sales.
function setPrimarySaleRecipient(address _saleRecipient) external;
/// @dev Emitted when a new sale recipient is set.
event PrimarySaleRecipientUpdated(address indexed recipient);
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
/// @author thirdweb
import "../../eip/interface/IERC2981.sol";
/**
* Thirdweb's `Royalty` is a contract extension to be used with any base contract. It exposes functions for setting and reading
* the recipient of royalty fee and the royalty fee basis points, and lets the inheriting contract perform conditional logic
* that uses information about royalty fees, if desired.
*
* The `Royalty` contract is ERC2981 compliant.
*/
interface IRoyalty is IERC2981 {
struct RoyaltyInfo {
address recipient;
uint256 bps;
}
/// @dev Returns the royalty recipient and fee bps.
function getDefaultRoyaltyInfo() external view returns (address, uint16);
/// @dev Lets a module admin update the royalty bps and recipient.
function setDefaultRoyaltyInfo(address _royaltyRecipient, uint256 _royaltyBps) external;
/// @dev Lets a module admin set the royalty recipient for a particular token Id.
function setRoyaltyInfoForToken(uint256 tokenId, address recipient, uint256 bps) external;
/// @dev Returns the royalty recipient for a particular token Id.
function getRoyaltyInfoForToken(uint256 tokenId) external view returns (address, uint16);
/// @dev Emitted when royalty info is updated.
event DefaultRoyalty(address indexed newRoyaltyRecipient, uint256 newRoyaltyBps);
/// @dev Emitted when royalty recipient for tokenId is set
event RoyaltyForToken(uint256 indexed tokenId, address indexed royaltyRecipient, uint256 royaltyBps);
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
interface IWETH {
function deposit() external payable;
function withdraw(uint256 amount) external;
function transfer(address to, uint256 value) external returns (bool);
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
/// @author thirdweb
import "./interface/ILazyMint.sol";
import "./BatchMintMetadata.sol";
/**
* The `LazyMint` is a contract extension for any base NFT contract. It lets you 'lazy mint' any number of NFTs
* at once. Here, 'lazy mint' means defining the metadata for particular tokenIds of your NFT contract, without actually
* minting a non-zero balance of NFTs of those tokenIds.
*/
abstract contract LazyMint is ILazyMint, BatchMintMetadata {
/// @dev The sender is not authorized to perform the action
error LazyMintUnauthorized();
error LazyMintInvalidAmount();
/// @notice The tokenId assigned to the next new NFT to be lazy minted.
uint256 internal nextTokenIdToLazyMint;
/**
* @notice Lets an authorized address lazy mint a given amount of NFTs.
*
* @param _amount The number of NFTs to lazy mint.
* @param _baseURIForTokens The base URI for the 'n' number of NFTs being lazy minted, where the metadata for each
* of those NFTs is `${baseURIForTokens}/${tokenId}`.
* @param _data Additional bytes data to be used at the discretion of the consumer of the contract.
* @return batchId A unique integer identifier for the batch of NFTs lazy minted together.
*/
function lazyMint(
uint256 _amount,
string calldata _baseURIForTokens,
bytes calldata _data
) public virtual override returns (uint256 batchId) {
if (!_canLazyMint()) {
revert LazyMintUnauthorized();
}
if (_amount == 0) {
revert LazyMintInvalidAmount();
}
uint256 startId = nextTokenIdToLazyMint;
(nextTokenIdToLazyMint, batchId) = _batchMintMetadata(startId, _amount, _baseURIForTokens);
emit TokensLazyMinted(startId, startId + _amount - 1, _baseURIForTokens, _data);
return batchId;
}
/// @dev Returns whether lazy minting can be performed in the given execution context.
function _canLazyMint() internal view virtual returns (bool);
}
// SPDX-License-Identifier: Apache 2.0
pragma solidity ^0.8.0;
/// @author OpenZeppelin, thirdweb
library MerkleProof {
function verify(bytes32[] calldata proof, bytes32 root, bytes32 leaf) internal pure returns (bool, uint256) {
bytes32 computedHash = leaf;
uint256 index = 0;
for (uint256 i = 0; i < proof.length; i++) {
index *= 2;
bytes32 proofElement = proof[i];
if (computedHash <= proofElement) {
// Hash(current computed hash + current element of the proof)
computedHash = _efficientHash(computedHash, proofElement);
} else {
// Hash(current element of the proof + current computed hash)
computedHash = _efficientHash(proofElement, computedHash);
index += 1;
}
}
// Check if the computed hash (root) is equal to the provided root
return (computedHash == root, index);
}
/**
* @dev Implementation of keccak256(abi.encode(a, b)) that doesn't allocate or expand memory.
*/
function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
/// @solidity memory-safe-assembly
assembly {
mstore(0x00, a)
mstore(0x20, b)
value := keccak256(0x00, 0x40)
}
}
}
// SPDX-License-Identifier: Apache 2.0
pragma solidity ^0.8.0;
/// @author thirdweb
import "../lib/Address.sol";
import "./interface/IMulticall.sol";
/**
* @dev Provides a function to batch together multiple calls in a single external call.
*
* _Available since v4.1._
*/
contract Multicall is IMulticall {
/**
* @notice Receives and executes a batch of function calls on this contract.
* @dev Receives and executes a batch of function calls on this contract.
*
* @param data The bytes data that makes up the batch of function calls to execute.
* @return results The bytes data that makes up the result of the batch of function calls executed.
*/
function multicall(bytes[] calldata data) external returns (bytes[] memory results) {
results = new bytes[](data.length);
address sender = _msgSender();
bool isForwarder = msg.sender != sender;
for (uint256 i = 0; i < data.length; i++) {
if (isForwarder) {
results[i] = Address.functionDelegateCall(address(this), abi.encodePacked(data[i], sender));
} else {
results[i] = Address.functionDelegateCall(address(this), data[i]);
}
}
return results;
}
/// @notice Returns the sender in the given execution context.
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
/// @author thirdweb
import "./interface/IOwnable.sol";
/**
* @title Ownable
* @notice Thirdweb's `Ownable` is a contract extension to be used with any base contract. It exposes functions for setting and reading
* who the 'owner' of the inheriting smart contract is, and lets the inheriting contract perform conditional logic that uses
* information about who the contract's owner is.
*/
abstract contract Ownable is IOwnable {
/// @dev The sender is not authorized to perform the action
error OwnableUnauthorized();
/// @dev Owner of the contract (purpose: OpenSea compatibility)
address private _owner;
/// @dev Reverts if caller is not the owner.
modifier onlyOwner() {
if (msg.sender != _owner) {
revert OwnableUnauthorized();
}
_;
}
/**
* @notice Returns the owner of the contract.
*/
function owner() public view override returns (address) {
return _owner;
}
/**
* @notice Lets an authorized wallet set a new owner for the contract.
* @param _newOwner The address to set as the new owner of the contract.
*/
function setOwner(address _newOwner) external override {
if (!_canSetOwner()) {
revert OwnableUnauthorized();
}
_setupOwner(_newOwner);
}
/// @dev Lets a contract admin set a new owner for the contract. The new owner must be a contract admin.
function _setupOwner(address _newOwner) internal {
address _prevOwner = _owner;
_owner = _newOwner;
emit OwnerUpdated(_prevOwner, _newOwner);
}
/// @dev Returns whether owner can be set in the given execution context.
function _canSetOwner() internal view virtual returns (bool);
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
/// @author thirdweb
import "./interface/IPrimarySale.sol";
/**
* @title Primary Sale
* @notice Thirdweb's `PrimarySale` is a contract extension to be used with any base contract. It exposes functions for setting and reading
* the recipient of primary sales, and lets the inheriting contract perform conditional logic that uses information about
* primary sales, if desired.
*/
abstract contract PrimarySale is IPrimarySale {
/// @dev The sender is not authorized to perform the action
error PrimarySaleUnauthorized();
/// @dev The recipient is invalid
error PrimarySaleInvalidRecipient(address recipient);
/// @dev The address that receives all primary sales value.
address private recipient;
/// @dev Returns primary sale recipient address.
function primarySaleRecipient() public view override returns (address) {
return recipient;
}
/**
* @notice Updates primary sale recipient.
* @dev Caller should be authorized to set primary sales info.
* See {_canSetPrimarySaleRecipient}.
* Emits {PrimarySaleRecipientUpdated Event}; See {_setupPrimarySaleRecipient}.
*
* @param _saleRecipient Address to be set as new recipient of primary sales.
*/
function setPrimarySaleRecipient(address _saleRecipient) external override {
if (!_canSetPrimarySaleRecipient()) {
revert PrimarySaleUnauthorized();
}
_setupPrimarySaleRecipient(_saleRecipient);
}
/// @dev Lets a contract admin set the recipient for all primary sales.
function _setupPrimarySaleRecipient(address _saleRecipient) internal {
if (_saleRecipient == address(0)) {
revert PrimarySaleInvalidRecipient(_saleRecipient);
}
recipient = _saleRecipient;
emit PrimarySaleRecipientUpdated(_saleRecipient);
}
/// @dev Returns whether primary sale recipient can be set in the given execution context.
function _canSetPrimarySaleRecipient() internal view virtual returns (bool);
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
/// @author thirdweb
import "./interface/IRoyalty.sol";
/**
* @title Royalty
* @notice Thirdweb's `Royalty` is a contract extension to be used with any base contract. It exposes functions for setting and reading
* the recipient of royalty fee and the royalty fee basis points, and lets the inheriting contract perform conditional logic
* that uses information about royalty fees, if desired.
*
* @dev The `Royalty` contract is ERC2981 compliant.
*/
abstract contract Royalty is IRoyalty {
/// @dev The sender is not authorized to perform the action
error RoyaltyUnauthorized();
/// @dev The recipient is invalid
error RoyaltyInvalidRecipient(address recipient);
/// @dev The fee bps exceeded the max value
error RoyaltyExceededMaxFeeBps(uint256 max, uint256 actual);
/// @dev The (default) address that receives all royalty value.
address private royaltyRecipient;
/// @dev The (default) % of a sale to take as royalty (in basis points).
uint16 private royaltyBps;
/// @dev Token ID => royalty recipient and bps for token
mapping(uint256 => RoyaltyInfo) private royaltyInfoForToken;
/**
* @notice View royalty info for a given token and sale price.
* @dev Returns royalty amount and recipient for `tokenId` and `salePrice`.
* @param tokenId The tokenID of the NFT for which to query royalty info.
* @param salePrice Sale price of the token.
*
* @return receiver Address of royalty recipient account.
* @return royaltyAmount Royalty amount calculated at current royaltyBps value.
*/
function royaltyInfo(
uint256 tokenId,
uint256 salePrice
) external view virtual override returns (address receiver, uint256 royaltyAmount) {
(address recipient, uint256 bps) = getRoyaltyInfoForToken(tokenId);
receiver = recipient;
royaltyAmount = (salePrice * bps) / 10_000;
}
/**
* @notice View royalty info for a given token.
* @dev Returns royalty recipient and bps for `_tokenId`.
* @param _tokenId The tokenID of the NFT for which to query royalty info.
*/
function getRoyaltyInfoForToken(uint256 _tokenId) public view override returns (address, uint16) {
RoyaltyInfo memory royaltyForToken = royaltyInfoForToken[_tokenId];
return
royaltyForToken.recipient == address(0)
? (royaltyRecipient, uint16(royaltyBps))
: (royaltyForToken.recipient, uint16(royaltyForToken.bps));
}
/**
* @notice Returns the defualt royalty recipient and BPS for this contract's NFTs.
*/
function getDefaultRoyaltyInfo() external view override returns (address, uint16) {
return (royaltyRecipient, uint16(royaltyBps));
}
/**
* @notice Updates default royalty recipient and bps.
* @dev Caller should be authorized to set royalty info.
* See {_canSetRoyaltyInfo}.
* Emits {DefaultRoyalty Event}; See {_setupDefaultRoyaltyInfo}.
*
* @param _royaltyRecipient Address to be set as default royalty recipient.
* @param _royaltyBps Updated royalty bps.
*/
function setDefaultRoyaltyInfo(address _royaltyRecipient, uint256 _royaltyBps) external override {
if (!_canSetRoyaltyInfo()) {
revert RoyaltyUnauthorized();
}
_setupDefaultRoyaltyInfo(_royaltyRecipient, _royaltyBps);
}
/// @dev Lets a contract admin update the default royalty recipient and bps.
function _setupDefaultRoyaltyInfo(address _royaltyRecipient, uint256 _royaltyBps) internal {
if (_royaltyBps > 10_000) {
revert RoyaltyExceededMaxFeeBps(10_000, _royaltyBps);
}
royaltyRecipient = _royaltyRecipient;
royaltyBps = uint16(_royaltyBps);
emit DefaultRoyalty(_royaltyRecipient, _royaltyBps);
}
/**
* @notice Updates default royalty recipient and bps for a particular token.
* @dev Sets royalty info for `_tokenId`. Caller should be authorized to set royalty info.
* See {_canSetRoyaltyInfo}.
* Emits {RoyaltyForToken Event}; See {_setupRoyaltyInfoForToken}.
*
* @param _recipient Address to be set as royalty recipient for given token Id.
* @param _bps Updated royalty bps for the token Id.
*/
function setRoyaltyInfoForToken(uint256 _tokenId, address _recipient, uint256 _bps) external override {
if (!_canSetRoyaltyInfo()) {
revert RoyaltyUnauthorized();
}
_setupRoyaltyInfoForToken(_tokenId, _recipient, _bps);
}
/// @dev Lets a contract admin set the royalty recipient and bps for a particular token Id.
function _setupRoyaltyInfoForToken(uint256 _tokenId, address _recipient, uint256 _bps) internal {
if (_bps > 10_000) {
revert RoyaltyExceededMaxFeeBps(10_000, _bps);
}
royaltyInfoForToken[_tokenId] = RoyaltyInfo({ recipient: _recipient, bps: _bps });
emit RoyaltyForToken(_tokenId, _recipient, _bps);
}
/// @dev Returns whether royalty info can be set in the given execution context.
function _canSetRoyaltyInfo() internal view virtual returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.0;
import "../../../../../eip/interface/IERC20.sol";
import { Address } from "../../../../../lib/Address.sol";
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using Address for address;
function safeTransfer(IERC20 token, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(IERC20 token, address spender, uint256 value) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 newAllowance = token.allowance(address(this), spender) + value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
uint256 newAllowance = oldAllowance - value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) {
// Return data is optional
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;
/// @author thirdweb
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
/**
* @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 Returns the hexadecimal representation of `value`.
/// The output is prefixed with "0x", encoded using 2 hexadecimal digits per byte,
/// and the alphabets are capitalized conditionally according to
/// https://eips.ethereum.org/EIPS/eip-55
function toHexStringChecksummed(address value) internal pure returns (string memory str) {
str = toHexString(value);
/// @solidity memory-safe-assembly
assembly {
let mask := shl(6, div(not(0), 255)) // `0b010000000100000000 ...`
let o := add(str, 0x22)
let hashed := and(keccak256(o, 40), mul(34, mask)) // `0b10001000 ... `
let t := shl(240, 136) // `0b10001000 << 240`
for {
let i := 0
} 1 {
} {
mstore(add(i, i), mul(t, byte(i, hashed)))
i := add(i, 1)
if eq(i, 20) {
break
}
}
mstore(o, xor(mload(o), shr(1, and(mload(0x00), and(mload(o), mask)))))
o := add(o, 0x20)
mstore(o, xor(mload(o), shr(1, and(mload(0x20), and(mload(o), mask)))))
}
}
/// @dev Returns the hexadecimal representation of `value`.
/// The output is prefixed with "0x" and encoded using 2 hexadecimal digits per byte.
function toHexString(address value) internal pure returns (string memory str) {
str = toHexStringNoPrefix(value);
/// @solidity memory-safe-assembly
assembly {
let strLength := add(mload(str), 2) // Compute the length.
mstore(str, 0x3078) // Write the "0x" prefix.
str := sub(str, 2) // Move the pointer.
mstore(str, strLength) // Write the length.
}
}
/// @dev Returns the hexadecimal representation of `value`.
/// The output is encoded using 2 hexadecimal digits per byte.
function toHexStringNoPrefix(address value) internal pure returns (string memory str) {
/// @solidity memory-safe-assembly
assembly {
str := mload(0x40)
// Allocate the memory.
// We need 0x20 bytes for the trailing zeros padding, 0x20 bytes for the length,
// 0x02 bytes for the prefix, and 0x28 bytes for the digits.
// The next multiple of 0x20 above (0x20 + 0x20 + 0x02 + 0x28) is 0x80.
mstore(0x40, add(str, 0x80))
// Store "0123456789abcdef" in scratch space.
mstore(0x0f, 0x30313233343536373839616263646566)
str := add(str, 2)
mstore(str, 40)
let o := add(str, 0x20)
mstore(add(o, 40), 0)
value := shl(96, value)
// We write the string from rightmost digit to leftmost digit.
// The following is essentially a do-while loop that also handles the zero case.
for {
let i := 0
} 1 {
} {
let p := add(o, add(i, i))
let temp := byte(i, value)
mstore8(add(p, 1), mload(and(temp, 15)))
mstore8(p, mload(shr(4, temp)))
i := add(i, 1)
if eq(i, 20) {
break
}
}
}
}
/// @dev Returns the hex encoded string from the raw bytes.
/// The output is encoded using 2 hexadecimal digits per byte.
function toHexString(bytes memory raw) internal pure returns (string memory str) {
str = toHexStringNoPrefix(raw);
/// @solidity memory-safe-assembly
assembly {
let strLength := add(mload(str), 2) // Compute the length.
mstore(str, 0x3078) // Write the "0x" prefix.
str := sub(str, 2) // Move the pointer.
mstore(str, strLength) // Write the length.
}
}
/// @dev Returns the hex encoded string from the raw bytes.
/// The output is encoded using 2 hexadecimal digits per byte.
function toHexStringNoPrefix(bytes memory raw) internal pure returns (string memory str) {
/// @solidity memory-safe-assembly
assembly {
let length := mload(raw)
str := add(mload(0x40), 2) // Skip 2 bytes for the optional prefix.
mstore(str, add(length, length)) // Store the length of the output.
// Store "0123456789abcdef" in scratch space.
mstore(0x0f, 0x30313233343536373839616263646566)
let o := add(str, 0x20)
let end := add(raw, length)
for {
} iszero(eq(raw, end)) {
} {
raw := add(raw, 1)
mstore8(add(o, 1), mload(and(mload(raw), 15)))
mstore8(o, mload(and(shr(4, mload(raw)), 15)))
o := add(o, 2)
}
mstore(o, 0) // Zeroize the slot after the string.
mstore(0x40, add(o, 0x20)) // Allocate the memory.
}
}
}
{
"compilationTarget": {
"contracts/FacesOfWeb.sol": "FacesOfWeb"
},
"evmVersion": "london",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
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