Transaction Hash:
Block:
16535687 at Feb-01-2023 06:14:35 PM +UTC
Transaction Fee:
0.000484895115922802 ETH
$1.48
Gas Used:
24,323 Gas / 19.935662374 Gwei
Emitted Events:
219 |
Commerce.ApprovalForAll( account=[Sender] 0x2c444cb512186a9bea6468d953d3ce75ddbb845b, operator=0x15Ce9846...45F3b57e5, approved=False )
|
Account State Difference:
Address | Before | After | State Difference | ||
---|---|---|---|---|---|
0x2c444cb5...5dDBb845b |
0.025616559447857053 Eth
Nonce: 74
|
0.025131664331934251 Eth
Nonce: 75
| 0.000484895115922802 | ||
0x635b7DF3...E8A0AFC38 | |||||
0x690B9A9E...Db4FaC990
Miner
| (builder0x69) | 2.051752684240969684 Eth | 2.051777007240969684 Eth | 0.000024323 |
Execution Trace
Commerce.setApprovalForAll( operator=0x15Ce9846b82199166434A57e67D0Cd045F3b57e5, approved=False )
setApprovalForAll[ERC1155 (ln:728)]
_msgSender[ERC1155 (ln:729)]
_msgSender[ERC1155 (ln:730)]
ApprovalForAll[ERC1155 (ln:731)]
_msgSender[ERC1155 (ln:731)]
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/access/AccessControl.sol"; import "@openzeppelin/contracts/token/ERC1155/ERC1155.sol"; import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol"; import "@openzeppelin/contracts/utils/Strings.sol"; import "@openzeppelin/contracts/utils/math/SafeMath.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; import './Abstract1155Factory.sol'; import './Utils.sol'; contract Commerce is Abstract1155Factory, ReentrancyGuard { using SafeMath for uint256; mapping(uint256 => Token) public tokens; event Purchased(uint[] index, address indexed account, uint[] amount); struct Token { string ipfsMetadataHash; string extraDataUri; mapping(address => uint256) claimedTokens; mapping(uint => address) redeemableContracts; uint256 numRedeemableContracts; mapping(uint => Whitelist) whitelistData; uint256 numTokenWhitelists; MintingConfig mintingConfig; WhiteListConfig whiteListConfig; bool isTokenPack; TokenPackConfig tokenPackConfig; } struct MintingConfig { bool saleIsOpen; uint256 windowOpens; uint256 windowCloses; uint256 mintPrice; uint256 maxSupply; uint256 maxPerWallet; uint256 maxMintPerTxn; uint256 numMinted; } struct WhiteListConfig { bool maxQuantityMappedByWhitelistHoldings; bool requireAllWhiteLists; bool hasMerkleRoot; bytes32 merkleRoot; } struct TokenPackConfig { uint256[] packTokens; bool isRandomPack; uint numRandom; uint numWhiteListBonus; bool allotOwnedTokenQuantity; bool isWhiteListBonusAggregatedAcrossAllWhiteLists; } struct Whitelist { string tokenType; address tokenAddress; uint mustOwnQuantity; uint256 tokenId; bool active; } string public _contractURI; constructor( string memory _name, string memory _symbol, address[] memory _admins, string memory _contract_URI ) ERC1155("ipfs://") { name_ = _name; symbol_ = _symbol; _setupRole(DEFAULT_ADMIN_ROLE, msg.sender); for (uint i=0; i< _admins.length; i++) { _setupRole(DEFAULT_ADMIN_ROLE, _admins[i]); } _contractURI = _contract_URI; } function getOpenSaleTokens() public view returns (string memory){ string memory open = ""; uint256 numTokens = 0; while(!Utils.compareStrings(tokens[numTokens].ipfsMetadataHash, "")) { if(isSaleOpen(numTokens)){ open = string(abi.encodePacked(open, Strings.toString(numTokens), ",")); } numTokens++; } return open; } function editToken( uint256 _tokenIndex, string memory _ipfsMetadataHash, string memory _extraDataUri, uint256 _windowOpens, uint256 _windowCloses, uint256 _mintPrice, uint256 _maxSupply, uint256 _maxMintPerTxn, uint256 _maxPerWallet, bool _maxQuantityMappedByWhitelistHoldings, bool _requireAllWhiteLists, address[] memory _redeemableContracts ) public onlyRole(DEFAULT_ADMIN_ROLE) { Token storage token = tokens[_tokenIndex]; token.mintingConfig.windowOpens = _windowOpens; token.mintingConfig.windowCloses = _windowCloses; token.mintingConfig.mintPrice = _mintPrice; token.mintingConfig.maxSupply = _maxSupply; token.mintingConfig.maxMintPerTxn = _maxMintPerTxn; token.mintingConfig.maxPerWallet = _maxPerWallet; token.ipfsMetadataHash = _ipfsMetadataHash; token.extraDataUri = _extraDataUri; for (uint i=0; i<_redeemableContracts.length; i++) { token.redeemableContracts[i] = _redeemableContracts[i]; } token.numRedeemableContracts = _redeemableContracts.length; token.whiteListConfig.maxQuantityMappedByWhitelistHoldings = _maxQuantityMappedByWhitelistHoldings; token.whiteListConfig.requireAllWhiteLists = _requireAllWhiteLists; } function configTokenPack( uint256 _tokenIndex, bool _isTokenPack, uint256[] memory _packTokens, bool _isRandomPack, uint _numRandom, uint _numWhiteListBonus, bool _allotOwnedTokenQuantity, bool _isWhiteListBonusAggregatedAcrossAllWhiteLists )external onlyRole(DEFAULT_ADMIN_ROLE) { TokenPackConfig storage tokenPackConfig = tokens[_tokenIndex].tokenPackConfig; tokens[_tokenIndex].isTokenPack = _isTokenPack; tokenPackConfig.packTokens = _packTokens; tokenPackConfig.isRandomPack = _isRandomPack; tokenPackConfig.numRandom = _numRandom; tokenPackConfig.numWhiteListBonus = _numWhiteListBonus; tokenPackConfig.allotOwnedTokenQuantity = _allotOwnedTokenQuantity; tokenPackConfig.isWhiteListBonusAggregatedAcrossAllWhiteLists = _isWhiteListBonusAggregatedAcrossAllWhiteLists; } function addWhiteList( uint256 _tokenIndex, string memory _tokenType, address _tokenAddress, uint _tokenId, uint _mustOwnQuantity )external onlyRole(DEFAULT_ADMIN_ROLE) { Whitelist storage whitelist = tokens[_tokenIndex].whitelistData[tokens[_tokenIndex].numTokenWhitelists]; whitelist.tokenType = _tokenType; whitelist.tokenId = _tokenId; whitelist.active = true; whitelist.tokenAddress = _tokenAddress; whitelist.mustOwnQuantity = _mustOwnQuantity; tokens[_tokenIndex].numTokenWhitelists = tokens[_tokenIndex].numTokenWhitelists + 1; } function disableWhiteList( uint256 _tokenIndex, uint _whiteListIndexToRemove )external onlyRole(DEFAULT_ADMIN_ROLE) { tokens[_tokenIndex].whitelistData[_whiteListIndexToRemove].active = false; } function editTokenWhiteListMerkleRoot( uint256 _tokenIndex, bytes32 _merkleRoot, bool enabled ) external onlyRole(DEFAULT_ADMIN_ROLE) { tokens[_tokenIndex].whiteListConfig.merkleRoot = _merkleRoot; tokens[_tokenIndex].whiteListConfig.hasMerkleRoot = enabled; } function burnFromRedeem( address account, uint256 tokenIndex, uint256 amount ) external { Token storage token = tokens[tokenIndex]; bool hasValidRedemptionContract = false; if(token.numRedeemableContracts > 0){ for (uint i=0; i < token.numRedeemableContracts; i++) { if(token.redeemableContracts[i] == msg.sender){ hasValidRedemptionContract = true; } } } require(hasValidRedemptionContract, "1"); _burn(account, tokenIndex, amount); } function purchase( uint256[] calldata _quantities, uint256[] calldata _tokenIndexes, uint256[] calldata _merkleAmounts, bytes32[][] calldata _merkleProofs ) external payable nonReentrant { uint256 totalPrice = 0; for (uint i=0; i< _tokenIndexes.length; i++) { require(isSaleOpen(_tokenIndexes[i]), "5"); require(tokens[_tokenIndexes[i]].claimedTokens[msg.sender].add(_quantities[i]) <= _merkleAmounts[i], "8"); require(tokens[_tokenIndexes[i]].claimedTokens[msg.sender].add(_quantities[i]) <= tokens[_tokenIndexes[i]].mintingConfig.maxPerWallet, "9"); require(_quantities[i] <= tokens[_tokenIndexes[i]].mintingConfig.maxMintPerTxn, "10"); require(getTokenSupply(_tokenIndexes[i]) + _quantities[i] <= tokens[_tokenIndexes[i]].mintingConfig.maxSupply, "11"); totalPrice = totalPrice.add(_quantities[i].mul(tokens[_tokenIndexes[i]].mintingConfig.mintPrice)); } require(!paused() && msg.value >= totalPrice, "3"); for (uint i=0; i< _tokenIndexes.length; i++) { uint256 quantityToMint = getQualifiedAllocation(msg.sender,_tokenIndexes[i], _quantities[i],_merkleAmounts[i],_merkleProofs[i], true); require(quantityToMint > 0 && quantityToMint >= _quantities[i], "4"); uint256[] memory idsToMint; uint256[] memory quantitiesToMint; if(tokens[_tokenIndexes[i]].isTokenPack){ quantityToMint = getQualifiedAllocation(msg.sender,_tokenIndexes[i], _quantities[i],_merkleAmounts[i],_merkleProofs[i], false); for (uint j=0; j < _quantities[i]; j++) { uint256[] memory inStockTokens = filterInStockTokensFromPack(tokens[_tokenIndexes[i]].tokenPackConfig, j); if(tokens[_tokenIndexes[i]].tokenPackConfig.isRandomPack){ idsToMint = new uint256[](quantityToMint); quantitiesToMint = new uint256[](quantityToMint); uint startingIndex = 0; uint q = 0; while(q < quantityToMint) { idsToMint[q] = inStockTokens[startingIndex]; quantitiesToMint[q] = 1; if(startingIndex < inStockTokens.length - 1){ startingIndex = startingIndex + 1; } else{ startingIndex = 0; } q = q + 1; } } else{ idsToMint = new uint256[](inStockTokens.length); for (uint q=0; q < inStockTokens.length; q++) { idsToMint[q] = inStockTokens[q]; quantitiesToMint[q] = 1; } } _mintBatch(msg.sender, idsToMint, quantitiesToMint, ""); emit Purchased(idsToMint, msg.sender, quantitiesToMint); tokens[_tokenIndexes[i]].mintingConfig.numMinted = tokens[_tokenIndexes[i]].mintingConfig.numMinted + 1; } } else{ idsToMint = new uint256[](1); idsToMint[0] = _tokenIndexes[i]; quantitiesToMint = new uint256[](1); quantitiesToMint[0] = _quantities[i]; _mintBatch(msg.sender, idsToMint, quantitiesToMint, ""); emit Purchased(idsToMint, msg.sender, quantitiesToMint); } tokens[_tokenIndexes[i]].claimedTokens[msg.sender] = tokens[_tokenIndexes[i]].claimedTokens[msg.sender].add(_quantities[i]); } } function filterInStockTokensFromPack(TokenPackConfig memory tokenPackConfig, uint seed) internal view returns(uint256[] memory){ tokenPackConfig.packTokens = Utils.shuffle(tokenPackConfig.packTokens, false, seed); uint256[] memory inStockTokens; uint totalInStock = 0; for (uint i=0; i < tokenPackConfig.packTokens.length; i++) { if(getTokenSupply(tokenPackConfig.packTokens[i]) < tokens[tokenPackConfig.packTokens[i]].mintingConfig.maxSupply){ totalInStock++; } } inStockTokens = new uint256[](totalInStock); uint startingIndex = 0; for (uint i=0; i < tokenPackConfig.packTokens.length; i++) { if(getTokenSupply(tokenPackConfig.packTokens[i]) < tokens[tokenPackConfig.packTokens[i]].mintingConfig.maxSupply){ inStockTokens[startingIndex] = tokenPackConfig.packTokens[i]; startingIndex++; } } return inStockTokens; } function mintBatch( address to, uint256[] calldata qty, uint256[] calldata _tokens) public onlyRole(DEFAULT_ADMIN_ROLE) { _mintBatch(to, _tokens, qty, ""); } function getQualifiedAllocation(address sender, uint256 tokenIndex, uint256 quantity, uint256 amount, bytes32[] calldata merkleProof, bool returnAllocationOnly) public view returns (uint256) { Token storage token = tokens[tokenIndex]; uint256 totalAllowed = token.mintingConfig.maxPerWallet; if(token.whiteListConfig.maxQuantityMappedByWhitelistHoldings){ totalAllowed = 0; } uint256 whiteListsValidAmounts = 0; if(token.numTokenWhitelists > 0){ uint256 balance = 0; uint256 _wl_amount = 0; for (uint i=0; i < token.numTokenWhitelists; i++) { if(token.whitelistData[i].active){ _wl_amount = verifyWhitelist(sender, tokenIndex, i, returnAllocationOnly); if(token.whiteListConfig.requireAllWhiteLists){ require( verifyWhitelist(sender, tokenIndex, i, returnAllocationOnly) > 0, "12"); } if(token.whiteListConfig.maxQuantityMappedByWhitelistHoldings){ Whitelist memory balanceRequest; balanceRequest.tokenType = token.whitelistData[i].tokenType; balanceRequest.tokenAddress = token.whitelistData[i].tokenAddress; balanceRequest.tokenId = token.whitelistData[i].tokenId; balance = getExternalTokenBalance(sender, balanceRequest); totalAllowed += balance; whiteListsValidAmounts += balance; } else{ whiteListsValidAmounts = _wl_amount; } } } } else{ whiteListsValidAmounts = token.mintingConfig.maxMintPerTxn; } if(!returnAllocationOnly){ require(whiteListsValidAmounts > 0, "13"); if(token.whiteListConfig.maxQuantityMappedByWhitelistHoldings){ require(token.claimedTokens[sender].add(quantity) <= totalAllowed, "14"); } } if(token.whiteListConfig.hasMerkleRoot){ require( verifyMerkleProof(merkleProof, tokenIndex, amount), "15" ); //whiteListsValidAmounts += quantity; } if(returnAllocationOnly){ return whiteListsValidAmounts < quantity ? whiteListsValidAmounts : quantity; } else{ return whiteListsValidAmounts; } } function verifyWhitelist(address sender, uint256 tokenIndex, uint whitelistIndex, bool returnAllocationOnly) internal view returns (uint256) { uint256 isValid = 0; uint256 balanceOf = 0; Token storage token = tokens[tokenIndex]; Whitelist memory balanceRequest; balanceRequest.tokenType = token.whitelistData[whitelistIndex].tokenType; balanceRequest.tokenAddress = token.whitelistData[whitelistIndex].tokenAddress; balanceRequest.tokenId = token.whitelistData[whitelistIndex].tokenId; balanceOf = getExternalTokenBalance(sender, balanceRequest); bool meetsWhiteListReqs = (balanceOf >= token.whitelistData[whitelistIndex].mustOwnQuantity); if(token.isTokenPack && !returnAllocationOnly){ if(token.tokenPackConfig.isRandomPack){ isValid = isValid + token.tokenPackConfig.numRandom; } else{ isValid = isValid + token.tokenPackConfig.packTokens.length; } if(token.tokenPackConfig.numWhiteListBonus > 0 && meetsWhiteListReqs){ isValid = isValid + token.tokenPackConfig.numWhiteListBonus; } } else if(token.isTokenPack && token.tokenPackConfig.allotOwnedTokenQuantity && meetsWhiteListReqs){ isValid = balanceOf; } else if(!token.isTokenPack && token.whiteListConfig.maxQuantityMappedByWhitelistHoldings){ isValid = balanceOf; } else if( meetsWhiteListReqs){ isValid = token.mintingConfig.maxMintPerTxn; } if(isValid == 0 && !token.whiteListConfig.requireAllWhiteLists){ isValid = token.mintingConfig.maxMintPerTxn; } return isValid; } function getExternalTokenBalance (address sender, Whitelist memory balanceRequest) public view returns (uint256) { if(Utils.compareStrings(balanceRequest.tokenType, "ERC721")){ WhitelistContract721 _contract = WhitelistContract721(balanceRequest.tokenAddress); return _contract.balanceOf(sender); } else if(Utils.compareStrings(balanceRequest.tokenType, "ERC1155")){ WhitelistContract1155 _contract = WhitelistContract1155(balanceRequest.tokenAddress); return _contract.balanceOf(sender, balanceRequest.tokenId); } } function isSaleOpen(uint256 tokenIndex) public view returns (bool) { Token storage token = tokens[tokenIndex]; if(paused()){ return false; } if(block.timestamp > token.mintingConfig.windowOpens && block.timestamp < token.mintingConfig.windowCloses){ return token.mintingConfig.saleIsOpen; } return false; } function toggleSale(uint256 mpIndex, bool on) public onlyRole(DEFAULT_ADMIN_ROLE) { tokens[mpIndex].mintingConfig.saleIsOpen = on; } function verifyMerkleProof(bytes32[] calldata merkleProof, uint256 mpIndex, uint amount) internal view returns (bool) { if(!tokens[mpIndex].whiteListConfig.hasMerkleRoot){ return true; } string memory leaf = Utils.makeLeaf(msg.sender, amount); bytes32 node = keccak256(abi.encode(leaf)); return MerkleProof.verify(merkleProof, tokens[mpIndex].whiteListConfig.merkleRoot, node); } function char(bytes1 b) internal view returns (bytes1 c) { if (uint8(b) < 10) return bytes1(uint8(b) + 0x30); else return bytes1(uint8(b) + 0x57); } function withdrawEther(address payable _to, uint256 _amount) public onlyOwner { _to.transfer(_amount); } function uri(uint256 _id) public view override returns (string memory) { require(getTokenSupply(_id) > 0, "16"); if(Utils.compareStrings(tokens[_id].ipfsMetadataHash, "")){ return string(abi.encodePacked(super.uri(_id), Strings.toString(_id))); } else{ return string(abi.encodePacked(tokens[_id].ipfsMetadataHash)); } } function getTokenSupply(uint256 tokenIndex) public view returns (uint256) { Token storage token = tokens[tokenIndex]; return token.isTokenPack ? token.mintingConfig.numMinted : totalSupply(tokenIndex); } } contract WhitelistContract1155 { function balanceOf(address account, uint256 id) external view returns (uint256) {} } contract WhitelistContract721 { function balanceOf(address account) external view returns (uint256) {} }// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./IAccessControl.sol"; import "../utils/Context.sol"; import "../utils/Strings.sol"; import "../utils/introspection/ERC165.sol"; /** * @dev Contract module that allows children to implement role-based access * control mechanisms. This is a lightweight version that doesn't allow enumerating role * members except through off-chain means by accessing the contract event logs. Some * applications may benefit from on-chain enumerability, for those cases see * {AccessControlEnumerable}. * * Roles are referred to by their `bytes32` identifier. These should be exposed * in the external API and be unique. The best way to achieve this is by * using `public constant` hash digests: * * ``` * bytes32 public constant MY_ROLE = keccak256("MY_ROLE"); * ``` * * Roles can be used to represent a set of permissions. To restrict access to a * function call, use {hasRole}: * * ``` * function foo() public { * require(hasRole(MY_ROLE, msg.sender)); * ... * } * ``` * * Roles can be granted and revoked dynamically via the {grantRole} and * {revokeRole} functions. Each role has an associated admin role, and only * accounts that have a role's admin role can call {grantRole} and {revokeRole}. * * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means * that only accounts with this role will be able to grant or revoke other * roles. More complex role relationships can be created by using * {_setRoleAdmin}. * * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to * grant and revoke this role. Extra precautions should be taken to secure * accounts that have been granted it. */ abstract contract AccessControl is Context, IAccessControl, ERC165 { struct RoleData { mapping(address => bool) members; bytes32 adminRole; } mapping(bytes32 => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Modifier that checks that an account has a specific role. Reverts * with a standardized message including the required role. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ * * _Available since v4.1._ */ modifier onlyRole(bytes32 role) { _checkRole(role, _msgSender()); _; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view override returns (bool) { return _roles[role].members[account]; } /** * @dev Revert with a standard message if `account` is missing `role`. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ */ function _checkRole(bytes32 role, address account) internal view { if (!hasRole(role, account)) { revert( string( abi.encodePacked( "AccessControl: account ", Strings.toHexString(uint160(account), 20), " is missing role ", Strings.toHexString(uint256(role), 32) ) ) ); } } /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) public view override returns (bytes32) { return _roles[role].adminRole; } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _grantRole(role, account); } /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _revokeRole(role, account); } /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) public virtual override { require(account == _msgSender(), "AccessControl: can only renounce roles for self"); _revokeRole(role, account); } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. Note that unlike {grantRole}, this function doesn't perform any * checks on the calling account. * * [WARNING] * ==== * This function should only be called from the constructor when setting * up the initial roles for the system. * * Using this function in any other way is effectively circumventing the admin * system imposed by {AccessControl}. * ==== */ function _setupRole(bytes32 role, address account) internal virtual { _grantRole(role, account); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. */ function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { bytes32 previousAdminRole = getRoleAdmin(role); _roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } function _grantRole(bytes32 role, address account) private { if (!hasRole(role, account)) { _roles[role].members[account] = true; emit RoleGranted(role, account, _msgSender()); } } function _revokeRole(bytes32 role, address account) private { if (hasRole(role, account)) { _roles[role].members[account] = false; emit RoleRevoked(role, account, _msgSender()); } } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./IERC1155.sol"; import "./IERC1155Receiver.sol"; import "./extensions/IERC1155MetadataURI.sol"; import "../../utils/Address.sol"; import "../../utils/Context.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of the basic standard multi-token. * See https://eips.ethereum.org/EIPS/eip-1155 * Originally based on code by Enjin: https://github.com/enjin/erc-1155 * * _Available since v3.1._ */ contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI { using Address for address; // Mapping from token ID to account balances mapping(uint256 => mapping(address => uint256)) private _balances; // Mapping from account to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; // Used as the URI for all token types by relying on ID substitution, e.g. https://token-cdn-domain/{id}.json string private _uri; /** * @dev See {_setURI}. */ constructor(string memory uri_) { _setURI(uri_); } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC1155).interfaceId || interfaceId == type(IERC1155MetadataURI).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC1155MetadataURI-uri}. * * This implementation returns the same URI for *all* token types. It relies * on the token type ID substitution mechanism * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP]. * * Clients calling this function must replace the `\\{id\\}` substring with the * actual token type ID. */ function uri(uint256) public view virtual override returns (string memory) { return _uri; } /** * @dev See {IERC1155-balanceOf}. * * Requirements: * * - `account` cannot be the zero address. */ function balanceOf(address account, uint256 id) public view virtual override returns (uint256) { require(account != address(0), "ERC1155: balance query for the zero address"); return _balances[id][account]; } /** * @dev See {IERC1155-balanceOfBatch}. * * Requirements: * * - `accounts` and `ids` must have the same length. */ function balanceOfBatch(address[] memory accounts, uint256[] memory ids) public view virtual override returns (uint256[] memory) { require(accounts.length == ids.length, "ERC1155: accounts and ids length mismatch"); uint256[] memory batchBalances = new uint256[](accounts.length); for (uint256 i = 0; i < accounts.length; ++i) { batchBalances[i] = balanceOf(accounts[i], ids[i]); } return batchBalances; } /** * @dev See {IERC1155-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { require(_msgSender() != operator, "ERC1155: setting approval status for self"); _operatorApprovals[_msgSender()][operator] = approved; emit ApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC1155-isApprovedForAll}. */ function isApprovedForAll(address account, address operator) public view virtual override returns (bool) { return _operatorApprovals[account][operator]; } /** * @dev See {IERC1155-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 id, uint256 amount, bytes memory data ) public virtual override { require( from == _msgSender() || isApprovedForAll(from, _msgSender()), "ERC1155: caller is not owner nor approved" ); _safeTransferFrom(from, to, id, amount, data); } /** * @dev See {IERC1155-safeBatchTransferFrom}. */ function safeBatchTransferFrom( address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) public virtual override { require( from == _msgSender() || isApprovedForAll(from, _msgSender()), "ERC1155: transfer caller is not owner nor approved" ); _safeBatchTransferFrom(from, to, ids, amounts, data); } /** * @dev Transfers `amount` tokens of token type `id` from `from` to `to`. * * Emits a {TransferSingle} event. * * Requirements: * * - `to` cannot be the zero address. * - `from` must have a balance of tokens of type `id` of at least `amount`. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the * acceptance magic value. */ function _safeTransferFrom( address from, address to, uint256 id, uint256 amount, bytes memory data ) internal virtual { require(to != address(0), "ERC1155: transfer to the zero address"); address operator = _msgSender(); _beforeTokenTransfer(operator, from, to, _asSingletonArray(id), _asSingletonArray(amount), data); uint256 fromBalance = _balances[id][from]; require(fromBalance >= amount, "ERC1155: insufficient balance for transfer"); unchecked { _balances[id][from] = fromBalance - amount; } _balances[id][to] += amount; emit TransferSingle(operator, from, to, id, amount); _doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data); } /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_safeTransferFrom}. * * Emits a {TransferBatch} event. * * Requirements: * * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the * acceptance magic value. */ function _safeBatchTransferFrom( address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual { require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch"); require(to != address(0), "ERC1155: transfer to the zero address"); address operator = _msgSender(); _beforeTokenTransfer(operator, from, to, ids, amounts, data); for (uint256 i = 0; i < ids.length; ++i) { uint256 id = ids[i]; uint256 amount = amounts[i]; uint256 fromBalance = _balances[id][from]; require(fromBalance >= amount, "ERC1155: insufficient balance for transfer"); unchecked { _balances[id][from] = fromBalance - amount; } _balances[id][to] += amount; } emit TransferBatch(operator, from, to, ids, amounts); _doSafeBatchTransferAcceptanceCheck(operator, from, to, ids, amounts, data); } /** * @dev Sets a new URI for all token types, by relying on the token type ID * substitution mechanism * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP]. * * By this mechanism, any occurrence of the `\\{id\\}` substring in either the * URI or any of the amounts in the JSON file at said URI will be replaced by * clients with the token type ID. * * For example, the `https://token-cdn-domain/\\{id\\}.json` URI would be * interpreted by clients as * `https://token-cdn-domain/000000000000000000000000000000000000000000000000000000000004cce0.json` * for token type ID 0x4cce0. * * See {uri}. * * Because these URIs cannot be meaningfully represented by the {URI} event, * this function emits no events. */ function _setURI(string memory newuri) internal virtual { _uri = newuri; } /** * @dev Creates `amount` tokens of token type `id`, and assigns them to `account`. * * Emits a {TransferSingle} event. * * Requirements: * * - `account` cannot be the zero address. * - If `account` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the * acceptance magic value. */ function _mint( address account, uint256 id, uint256 amount, bytes memory data ) internal virtual { require(account != address(0), "ERC1155: mint to the zero address"); address operator = _msgSender(); _beforeTokenTransfer(operator, address(0), account, _asSingletonArray(id), _asSingletonArray(amount), data); _balances[id][account] += amount; emit TransferSingle(operator, address(0), account, id, amount); _doSafeTransferAcceptanceCheck(operator, address(0), account, id, amount, data); } /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_mint}. * * Requirements: * * - `ids` and `amounts` must have the same length. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the * acceptance magic value. */ function _mintBatch( address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual { require(to != address(0), "ERC1155: mint to the zero address"); require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch"); address operator = _msgSender(); _beforeTokenTransfer(operator, address(0), to, ids, amounts, data); for (uint256 i = 0; i < ids.length; i++) { _balances[ids[i]][to] += amounts[i]; } emit TransferBatch(operator, address(0), to, ids, amounts); _doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data); } /** * @dev Destroys `amount` tokens of token type `id` from `account` * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens of token type `id`. */ function _burn( address account, uint256 id, uint256 amount ) internal virtual { require(account != address(0), "ERC1155: burn from the zero address"); address operator = _msgSender(); _beforeTokenTransfer(operator, account, address(0), _asSingletonArray(id), _asSingletonArray(amount), ""); uint256 accountBalance = _balances[id][account]; require(accountBalance >= amount, "ERC1155: burn amount exceeds balance"); unchecked { _balances[id][account] = accountBalance - amount; } emit TransferSingle(operator, account, address(0), id, amount); } /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_burn}. * * Requirements: * * - `ids` and `amounts` must have the same length. */ function _burnBatch( address account, uint256[] memory ids, uint256[] memory amounts ) internal virtual { require(account != address(0), "ERC1155: burn from the zero address"); require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch"); address operator = _msgSender(); _beforeTokenTransfer(operator, account, address(0), ids, amounts, ""); for (uint256 i = 0; i < ids.length; i++) { uint256 id = ids[i]; uint256 amount = amounts[i]; uint256 accountBalance = _balances[id][account]; require(accountBalance >= amount, "ERC1155: burn amount exceeds balance"); unchecked { _balances[id][account] = accountBalance - amount; } } emit TransferBatch(operator, account, address(0), ids, amounts); } /** * @dev Hook that is called before any token transfer. This includes minting * and burning, as well as batched variants. * * The same hook is called on both single and batched variants. For single * transfers, the length of the `id` and `amount` arrays will be 1. * * Calling conditions (for each `id` and `amount` pair): * * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens * of token type `id` will be transferred to `to`. * - When `from` is zero, `amount` tokens of token type `id` will be minted * for `to`. * - when `to` is zero, `amount` of ``from``'s tokens of token type `id` * will be burned. * - `from` and `to` are never both zero. * - `ids` and `amounts` have the same, non-zero length. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual {} function _doSafeTransferAcceptanceCheck( address operator, address from, address to, uint256 id, uint256 amount, bytes memory data ) private { if (to.isContract()) { try IERC1155Receiver(to).onERC1155Received(operator, from, id, amount, data) returns (bytes4 response) { if (response != IERC1155Receiver.onERC1155Received.selector) { revert("ERC1155: ERC1155Receiver rejected tokens"); } } catch Error(string memory reason) { revert(reason); } catch { revert("ERC1155: transfer to non ERC1155Receiver implementer"); } } } function _doSafeBatchTransferAcceptanceCheck( address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) private { if (to.isContract()) { try IERC1155Receiver(to).onERC1155BatchReceived(operator, from, ids, amounts, data) returns ( bytes4 response ) { if (response != IERC1155Receiver.onERC1155BatchReceived.selector) { revert("ERC1155: ERC1155Receiver rejected tokens"); } } catch Error(string memory reason) { revert(reason); } catch { revert("ERC1155: transfer to non ERC1155Receiver implementer"); } } } function _asSingletonArray(uint256 element) private pure returns (uint256[] memory) { uint256[] memory array = new uint256[](1); array[0] = element; return array; } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev These functions deal with verification of Merkle Trees proofs. * * The proofs can be generated using the JavaScript library * https://github.com/miguelmota/merkletreejs[merkletreejs]. * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled. * * See `test/utils/cryptography/MerkleProof.test.js` for some examples. */ library MerkleProof { /** * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree * defined by `root`. For this, a `proof` must be provided, containing * sibling hashes on the branch from the leaf to the root of the tree. Each * pair of leaves and each pair of pre-images are assumed to be sorted. */ function verify( bytes32[] memory proof, bytes32 root, bytes32 leaf ) internal pure returns (bool) { bytes32 computedHash = leaf; for (uint256 i = 0; i < proof.length; i++) { bytes32 proofElement = proof[i]; if (computedHash <= proofElement) { // Hash(current computed hash + current element of the proof) computedHash = keccak256(abi.encodePacked(computedHash, proofElement)); } else { // Hash(current element of the proof + current computed hash) computedHash = keccak256(abi.encodePacked(proofElement, computedHash)); } } // Check if the computed hash (root) is equal to the provided root return computedHash == root; } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @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); } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; // CAUTION // This version of SafeMath should only be used with Solidity 0.8 or later, // because it relies on the compiler's built in overflow checks. /** * @dev Wrappers over Solidity's arithmetic operations. * * NOTE: `SafeMath` is no longer needed starting with Solidity 0.8. The compiler * now has built in overflow checking. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { uint256 c = a + b; if (c < a) return (false, 0); return (true, c); } } /** * @dev Returns the substraction of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b > a) return (false, 0); return (true, a - b); } } /** * @dev Returns the multiplication of two unsigned integers, with an overflow flag. * * _Available since v3.4._ */ function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) return (true, 0); uint256 c = a * b; if (c / a != b) return (false, 0); return (true, c); } } /** * @dev Returns the division of two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a / b); } } /** * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. * * _Available since v3.4._ */ function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { unchecked { if (b == 0) return (false, 0); return (true, a % b); } } /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { return a + b; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return a - b; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { return a * b; } /** * @dev Returns the integer division of two unsigned integers, reverting on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. * * Requirements: * * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return a / b; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return a % b; } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {trySub}. * * Counterpart to Solidity's `-` operator. * * Requirements: * * - Subtraction cannot overflow. */ function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b <= a, errorMessage); return a - b; } } /** * @dev Returns the integer division of two unsigned integers, reverting with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a / b; } } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * reverting with custom message when dividing by zero. * * CAUTION: This function is deprecated because it requires allocating memory for the error * message unnecessarily. For custom revert reasons use {tryMod}. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * * - The divisor cannot be zero. */ function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { unchecked { require(b > 0, errorMessage); return a % b; } } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and make it call a * `private` function that does the actual work. */ modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/access/AccessControl.sol"; import '@openzeppelin/contracts/access/Ownable.sol'; import '@openzeppelin/contracts/token/ERC1155/extensions/ERC1155Burnable.sol'; import '@openzeppelin/contracts/token/ERC1155/extensions/ERC1155Pausable.sol'; import '@openzeppelin/contracts/token/ERC1155/extensions/ERC1155Supply.sol'; abstract contract Abstract1155Factory is AccessControl, ERC1155Pausable, ERC1155Supply, ERC1155Burnable, Ownable { string public name_; string public symbol_; function pause() external onlyOwner { _pause(); } function unpause() external onlyOwner { _unpause(); } function setURI(string memory baseURI) external onlyOwner { _setURI(baseURI); } function name() public view returns (string memory) { return name_; } function symbol() public view returns (string memory) { return symbol_; } function _mint( address account, uint256 id, uint256 amount, bytes memory data ) internal virtual override(ERC1155, ERC1155Supply) { super._mint(account, id, amount, data); } function _mintBatch( address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual override(ERC1155, ERC1155Supply) { super._mintBatch(to, ids, amounts, data); } function _burn( address account, uint256 id, uint256 amount ) internal virtual override(ERC1155, ERC1155Supply) { super._burn(account, id, amount); } function _burnBatch( address account, uint256[] memory ids, uint256[] memory amounts ) internal virtual override(ERC1155, ERC1155Supply) { super._burnBatch(account, ids, amounts); } function _beforeTokenTransfer( address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual override(ERC1155Pausable, ERC1155) { super._beforeTokenTransfer(operator, from, to, ids, amounts, data); } function setOwner(address _addr) public onlyOwner { transferOwnership(_addr); } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC1155, AccessControl) returns (bool) { return super.supportsInterface(interfaceId); } }// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; /// @author: @props import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol"; import "@openzeppelin/contracts/utils/Strings.sol"; /** * @title Library of utility functions. */ library Utils { /** * @notice isUnique iterates over all elements in an array to determine whether or * not it contains repeated values. Returns false if a repeated value is found. * @param items the array of items to evaluate * @return true if the array does not contain repeated items, false if not * @dev We use for loops instead of storage based constructs because doing so * allows comparison to be run entirely in memory and therefore saves gas. */ function isUnique(uint256[] memory items) internal pure returns (bool) { for (uint i = 0; i < items.length; i++) { for (uint k = i + 1; k < items.length; k++) { if (items[i] == items[k]) { return false; } } } return true; } function compareStrings(string memory a, string memory b) internal view returns (bool) { return (keccak256(abi.encodePacked((a))) == keccak256(abi.encodePacked((b)))); } function makeLeaf(address _addr, uint amount) internal pure returns (string memory) { return string(abi.encodePacked(toAsciiString(_addr), "_", Strings.toString(amount))); } function toAsciiString(address x) internal pure returns (string memory) { bytes memory s = new bytes(40); for (uint i = 0; i < 20; i++) { bytes1 b = bytes1(uint8(uint(uint160(x)) / (2**(8*(19 - i))))); bytes1 hi = bytes1(uint8(b) / 16); bytes1 lo = bytes1(uint8(b) - 16 * uint8(hi)); s[2*i] = toChar(hi); s[2*i+1] = toChar(lo); } return string(s); } function shuffle(uint256[] memory numberArr, bool returnRandomIndex, uint seed) internal view returns(uint256[] memory){ if(!returnRandomIndex){ for (uint256 i = 0; i < numberArr.length; i++) { uint256 n = i + uint256(keccak256(abi.encodePacked(block.timestamp, msg.sender, seed))) % (numberArr.length - i); uint256 temp = numberArr[n]; numberArr[n] = numberArr[i]; numberArr[i] = temp; } } else{ uint randomHash = uint(keccak256(abi.encodePacked(block.timestamp, msg.sender, seed))) % numberArr.length; uint256[] memory retNumberArr = new uint256[](1); retNumberArr[0] = numberArr[randomHash]; numberArr = retNumberArr; } return numberArr; } /** * @notice toChar converts a byte array to characters. * @param b bytes to convert characters * @return bytes character * @dev We use for loops instead of storage based constructs because doing so * allows comparison to be run entirely in memory and therefore saves gas. */ function toChar(bytes1 b) internal pure returns (bytes1) { if (uint8(b) < 10) return bytes1(uint8(b) + 0x30); else return bytes1(uint8(b) + 0x57); } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev External interface of AccessControl declared to support ERC165 detection. */ interface IAccessControl { /** * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. * * _Available since v3.1._ */ event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /** * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {AccessControl-_setupRole}. */ event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) */ event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) external view returns (bool); /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {AccessControl-_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) external view returns (bytes32); /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) external; /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) external; /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) external; } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC1155 compliant contract, as defined in the * https://eips.ethereum.org/EIPS/eip-1155[EIP]. * * _Available since v3.1._ */ interface IERC1155 is IERC165 { /** * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`. */ event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value); /** * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all * transfers. */ event TransferBatch( address indexed operator, address indexed from, address indexed to, uint256[] ids, uint256[] values ); /** * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to * `approved`. */ event ApprovalForAll(address indexed account, address indexed operator, bool approved); /** * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI. * * If an {URI} event was emitted for `id`, the standard * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value * returned by {IERC1155MetadataURI-uri}. */ event URI(string value, uint256 indexed id); /** * @dev Returns the amount of tokens of token type `id` owned by `account`. * * Requirements: * * - `account` cannot be the zero address. */ function balanceOf(address account, uint256 id) external view returns (uint256); /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}. * * Requirements: * * - `accounts` and `ids` must have the same length. */ function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids) external view returns (uint256[] memory); /** * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`, * * Emits an {ApprovalForAll} event. * * Requirements: * * - `operator` cannot be the caller. */ function setApprovalForAll(address operator, bool approved) external; /** * @dev Returns true if `operator` is approved to transfer ``account``'s tokens. * * See {setApprovalForAll}. */ function isApprovedForAll(address account, address operator) external view returns (bool); /** * @dev Transfers `amount` tokens of token type `id` from `from` to `to`. * * Emits a {TransferSingle} event. * * Requirements: * * - `to` cannot be the zero address. * - If the caller is not `from`, it must be have been approved to spend ``from``'s tokens via {setApprovalForAll}. * - `from` must have a balance of tokens of type `id` of at least `amount`. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the * acceptance magic value. */ function safeTransferFrom( address from, address to, uint256 id, uint256 amount, bytes calldata data ) external; /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}. * * Emits a {TransferBatch} event. * * Requirements: * * - `ids` and `amounts` must have the same length. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the * acceptance magic value. */ function safeBatchTransferFrom( address from, address to, uint256[] calldata ids, uint256[] calldata amounts, bytes calldata data ) external; } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev _Available since v3.1._ */ interface IERC1155Receiver is IERC165 { /** @dev Handles the receipt of a single ERC1155 token type. This function is called at the end of a `safeTransferFrom` after the balance has been updated. To accept the transfer, this must return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` (i.e. 0xf23a6e61, or its own function selector). @param operator The address which initiated the transfer (i.e. msg.sender) @param from The address which previously owned the token @param id The ID of the token being transferred @param value The amount of tokens being transferred @param data Additional data with no specified format @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed */ function onERC1155Received( address operator, address from, uint256 id, uint256 value, bytes calldata data ) external returns (bytes4); /** @dev Handles the receipt of a multiple ERC1155 token types. This function is called at the end of a `safeBatchTransferFrom` after the balances have been updated. To accept the transfer(s), this must return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` (i.e. 0xbc197c81, or its own function selector). @param operator The address which initiated the batch transfer (i.e. msg.sender) @param from The address which previously owned the token @param ids An array containing ids of each token being transferred (order and length must match values array) @param values An array containing amounts of each token being transferred (order and length must match ids array) @param data Additional data with no specified format @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed */ function onERC1155BatchReceived( address operator, address from, uint256[] calldata ids, uint256[] calldata values, bytes calldata data ) external returns (bytes4); } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../IERC1155.sol"; /** * @dev Interface of the optional ERC1155MetadataExtension interface, as defined * in the https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[EIP]. * * _Available since v3.1._ */ interface IERC1155MetadataURI is IERC1155 { /** * @dev Returns the URI for token type `id`. * * If the `\\{id\\}` substring is present in the URI, it must be replaced by * clients with the actual token type ID. */ function uri(uint256 id) external view returns (string memory); } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /** * @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 * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize, which returns 0 for contracts in // construction, since the code is only stored at the end of the // constructor execution. uint256 size; assembly { size := extcodesize(account) } return size > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _setOwner(_msgSender()); } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { require(owner() == _msgSender(), "Ownable: caller is not the owner"); _; } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _setOwner(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _setOwner(newOwner); } function _setOwner(address newOwner) private { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../ERC1155.sol"; /** * @dev Extension of {ERC1155} that allows token holders to destroy both their * own tokens and those that they have been approved to use. * * _Available since v3.1._ */ abstract contract ERC1155Burnable is ERC1155 { function burn( address account, uint256 id, uint256 value ) public virtual { require( account == _msgSender() || isApprovedForAll(account, _msgSender()), "ERC1155: caller is not owner nor approved" ); _burn(account, id, value); } function burnBatch( address account, uint256[] memory ids, uint256[] memory values ) public virtual { require( account == _msgSender() || isApprovedForAll(account, _msgSender()), "ERC1155: caller is not owner nor approved" ); _burnBatch(account, ids, values); } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../ERC1155.sol"; import "../../../security/Pausable.sol"; /** * @dev ERC1155 token with pausable token transfers, minting and burning. * * Useful for scenarios such as preventing trades until the end of an evaluation * period, or having an emergency switch for freezing all token transfers in the * event of a large bug. * * _Available since v3.1._ */ abstract contract ERC1155Pausable is ERC1155, Pausable { /** * @dev See {ERC1155-_beforeTokenTransfer}. * * Requirements: * * - the contract must not be paused. */ function _beforeTokenTransfer( address operator, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual override { super._beforeTokenTransfer(operator, from, to, ids, amounts, data); require(!paused(), "ERC1155Pausable: token transfer while paused"); } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../ERC1155.sol"; /** * @dev Extension of ERC1155 that adds tracking of total supply per id. * * Useful for scenarios where Fungible and Non-fungible tokens have to be * clearly identified. Note: While a totalSupply of 1 might mean the * corresponding is an NFT, there is no guarantees that no other token with the * same id are not going to be minted. */ abstract contract ERC1155Supply is ERC1155 { mapping(uint256 => uint256) private _totalSupply; /** * @dev Total amount of tokens in with a given id. */ function totalSupply(uint256 id) public view virtual returns (uint256) { return _totalSupply[id]; } /** * @dev Indicates weither any token exist with a given id, or not. */ function exists(uint256 id) public view virtual returns (bool) { return ERC1155Supply.totalSupply(id) > 0; } /** * @dev See {ERC1155-_mint}. */ function _mint( address account, uint256 id, uint256 amount, bytes memory data ) internal virtual override { super._mint(account, id, amount, data); _totalSupply[id] += amount; } /** * @dev See {ERC1155-_mintBatch}. */ function _mintBatch( address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data ) internal virtual override { super._mintBatch(to, ids, amounts, data); for (uint256 i = 0; i < ids.length; ++i) { _totalSupply[ids[i]] += amounts[i]; } } /** * @dev See {ERC1155-_burn}. */ function _burn( address account, uint256 id, uint256 amount ) internal virtual override { super._burn(account, id, amount); _totalSupply[id] -= amount; } /** * @dev See {ERC1155-_burnBatch}. */ function _burnBatch( address account, uint256[] memory ids, uint256[] memory amounts ) internal virtual override { super._burnBatch(account, ids, amounts); for (uint256 i = 0; i < ids.length; ++i) { _totalSupply[ids[i]] -= amounts[i]; } } } // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which allows children to implement an emergency stop * mechanism that can be triggered by an authorized account. * * This module is used through inheritance. It will make available the * modifiers `whenNotPaused` and `whenPaused`, which can be applied to * the functions of your contract. Note that they will not be pausable by * simply including this module, only once the modifiers are put in place. */ abstract contract Pausable is Context { /** * @dev Emitted when the pause is triggered by `account`. */ event Paused(address account); /** * @dev Emitted when the pause is lifted by `account`. */ event Unpaused(address account); bool private _paused; /** * @dev Initializes the contract in unpaused state. */ constructor() { _paused = false; } /** * @dev Returns true if the contract is paused, and false otherwise. */ function paused() public view virtual returns (bool) { return _paused; } /** * @dev Modifier to make a function callable only when the contract is not paused. * * Requirements: * * - The contract must not be paused. */ modifier whenNotPaused() { require(!paused(), "Pausable: paused"); _; } /** * @dev Modifier to make a function callable only when the contract is paused. * * Requirements: * * - The contract must be paused. */ modifier whenPaused() { require(paused(), "Pausable: not paused"); _; } /** * @dev Triggers stopped state. * * Requirements: * * - The contract must not be paused. */ function _pause() internal virtual whenNotPaused { _paused = true; emit Paused(_msgSender()); } /** * @dev Returns to normal state. * * Requirements: * * - The contract must be paused. */ function _unpause() internal virtual whenPaused { _paused = false; emit Unpaused(_msgSender()); } }