ERC-1155
Source Code
Overview
Max Total Supply
5,149 FPXCUPEMOJI
Holders
2,840
Transfers
-
0
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
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| # | Exchange | Pair | Price | 24H Volume | % Volume |
|---|
Contract Name:
FPXEmoji
Compiler Version
v0.8.17+commit.8df45f5f
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
import "@openzeppelin/contracts/token/ERC1155/ERC1155.sol";
import "@openzeppelin/contracts/security/Pausable.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "../library/sealable/v1/Sealable.sol";
import "../library/random/v1/OnChainRandom.sol";
import "./IFPXEmoji.sol";
import "../library/opensea-operatorfilter/v1/FlexibleOperatorFilterer.sol";
/*
____ _ _
| _ \ | | | |
| |_) | __ _ ___ ___ | | __ _| |__ ___
| _ < / _` / __|/ _ \ | | / _` | '_ \/ __|
| |_) | (_| \__ \ __/ | |___| (_| | |_) \__ \
|____/ \__,_|___/\___| |______\__,_|_.__/|___/
*/
pragma solidity ^0.8.17;
/**
* @title FPXEmoji
* @author BaseLabs
*/
contract FPXEmoji is
ERC1155,
IFPXEmoji,
Pausable,
OnChainRandom,
ReentrancyGuard,
Ownable,
Sealable,
FlexibleOperatorFilterer
{
string public constant name = "FPX FLY x Cheers UP Emoji";
string public constant symbol = "FPXCUPEMOJI";
mapping(uint256 => Formula) private _formulas;
mapping(uint256 => Uint256Pair[]) private _airdropPlans;
mapping(uint256 => string) public tokenURIs;
constructor() ERC1155("") {}
/***********************************|
| Core |
|__________________________________*/
/**
* @notice airdrop method handles the airdrop process for a specified airdrop plan. The
* airdrop plan specifies the number of each type of token to be airdropped.
* The function receives an array of addresses and an array of numbers, where
* each number in the array represents the number of tokens to be airdropped to
* the corresponding address in the addresses array.
* @param airdropId_ The ID of the airdrop plan to be used for the airdrop.
* @param addresses_ The array of addresses to receive the airdrop.
* @param nums_ The array of numbers, where each number represents the number
* of tokens to be airdropped to the corresponding address.
*/
function airdrop(
uint256 airdropId_,
address[] calldata addresses_,
uint256[] calldata nums_
) external onlyOwner onlyNotSealed nonReentrant {
Uint256Pair[] memory airdropPlan = _airdropPlans[airdropId_];
uint256 planSize = airdropPlan.length;
if (planSize == 0) revert ErrInvalidAirdropPlan();
uint256 totalSize = 0;
for (uint256 i = 0; i < planSize; ++i) {
totalSize += airdropPlan[i].value;
}
for (uint256 i = 0; i < addresses_.length; ++i) {
address account = addresses_[i];
uint256 num = nums_[i];
for (uint256 j = 0; j < num; ++j) {
uint256 entropy = _unsafeRandom() % totalSize;
uint256 step = 0;
bool minted = false;
for (uint256 k = 0; k < planSize; ++k) {
step += airdropPlan[k].value;
if (entropy < step) {
airdropPlan[k].value--;
totalSize--;
_mint(account, airdropPlan[k].key, 1, "");
minted = true;
break;
}
}
if (!minted) revert ErrUnreachableCode();
}
}
_overwriteAirdropPlan(airdropId_, airdropPlan);
}
/**
* @notice The merge function merges the given formula and burns its input tokens.
* It then generates a new token using the output of the formula and mints it
* to the caller of the function.
* @param formulaId_ The ID of the formula to be used for the merge.
* @dev The onlyEOA and nonReentrant modifiers are used to restrict the
* caller to external accounts and to prevent reentrancy, respectively.
*/
function merge(uint256 formulaId_) external onlyEOA nonReentrant {
(Formula memory formula, bool valid) = getFormula(formulaId_);
if (!valid) revert ErrFormulaIsInvalid();
for (uint256 i = 0; i < formula.input.length; ++i) {
_burn(msg.sender, formula.input[i].key, formula.input[i].value);
}
uint256 tokenId = _dice(formula.output);
_mint(msg.sender, tokenId, 1, "");
emit Rerolled(msg.sender, formulaId_, tokenId);
}
/**
* @notice Burn a batch of tokens from an account.
* @param account_ The address of the account from which the tokens will be burned.
* @param ids_ The IDs of the tokens to burn.
* @param values_ The numbers of the tokens to burn.
*/
function burnBatch(
address account_,
uint256[] memory ids_,
uint256[] memory values_
) external {
if (account_ != msg.sender && !isApprovedForAll(account_, msg.sender))
revert ErrNotPermitted();
_burnBatch(account_, ids_, values_);
}
/**
* @notice _dice is used to select a key from a list of key-value pairs with
* probabilities proportional to their values.
* @param pairs_ The list of key-value pairs.
* @return The selected key.
*/
function _dice(Uint256Pair[] memory pairs_) internal returns (uint256) {
unchecked {
if (pairs_.length == 1) {
return pairs_[0].key;
}
uint256 totalSize = 0;
for (uint256 i = 0; i < pairs_.length; ++i) {
totalSize += pairs_[i].value;
}
uint256 entropy = _unsafeRandom() % totalSize;
uint256 step = 0;
for (uint256 i = 0; i < pairs_.length; ++i) {
step += pairs_[i].value;
if (entropy < step) {
return pairs_[i].key;
}
}
revert ErrUnreachableCode();
}
}
/***********************************|
| Admin |
|__________________________________*/
/**
* @notice mint is used to mints multiple tokens at once
* @param addresses_ the addresses to which the tokens will be minted
* @param tokenIds_ the token IDs of the tokens to be minted
* @param nums_ the number of tokens to be minted
*/
function mint(
address[] calldata addresses_,
uint256[] calldata tokenIds_,
uint256[] calldata nums_
) external onlyOwner onlyNotSealed nonReentrant {
if (
addresses_.length == 0 ||
addresses_.length != tokenIds_.length ||
addresses_.length != nums_.length
) revert ErrInvalidArguments();
for (uint256 i = 0; i < addresses_.length; ++i) {
_mint(addresses_[i], tokenIds_[i], nums_[i], "");
}
}
/**
* @notice setTokenURI is used to set the URI for a given token ID.
* @param tokenIds_ The IDs of the tokens to set the URI for.
* @param tokenURIs_ The URI values to set for the token IDs.
*/
function setTokenURI(
uint256[] calldata tokenIds_,
string[] calldata tokenURIs_
) external onlyOwner onlyNotSealed {
if ((tokenIds_.length == 0) || (tokenIds_.length != tokenURIs_.length))
revert ErrInvalidArguments();
for (uint256 i = 0; i < tokenIds_.length; ++i) {
uint256 tokenId = tokenIds_[i];
string memory tokenURI = tokenURIs_[i];
tokenURIs[tokenId] = tokenURI;
emit URI(tokenURI, tokenId);
}
}
/**
* @notice setFormula is used to sets the formula with the given ID.
* @param formulaId_ ID of the formula to set.
* @param formula_ Formula to set.
* @param overwrite_ Flag to indicate if the formula should be overwritten if it already exists.
*/
function setFormula(
uint256 formulaId_,
Formula calldata formula_,
bool overwrite_
) external onlyOwner onlyNotSealed {
if (!overwrite_) {
if (_formulas[formulaId_].input.length != 0)
revert ErrFormulaAlreadyExists();
}
if (formula_.output.length == 0 || formula_.input.length == 0)
revert ErrInvalidArguments();
_formulas[formulaId_] = formula_;
emit FormulaUpdated(formulaId_);
}
/**
* @notice setAirdropPlan is used to set an airdrop plan for the given airdrop ID.
* If `overwrite` is set to true, the existing plan for the given ID will be overwritten.
* If the given plan is empty or a plan already exists for the given ID and `overwrite` is not set to true, the function will revert.
*
* @param airdropId_ The ID of the airdrop for which to set the plan.
* @param plan_ The airdrop plan to set.
* @param overwrite_ Whether to overwrite an existing plan for the given airdrop ID.
*/
function setAirdropPlan(
uint256 airdropId_,
Uint256Pair[] calldata plan_,
bool overwrite_
) external onlyOwner onlyNotSealed {
if (overwrite_) {
_overwriteAirdropPlan(airdropId_, plan_);
return;
}
if (_airdropPlans[airdropId_].length != 0)
revert ErrAirdropPlanAlreadyExists();
if (plan_.length == 0) revert ErrInvalidAirdropPlan();
Uint256Pair[] storage airdropPlan = _airdropPlans[airdropId_];
for (uint256 i = 0; i < plan_.length; ++i) {
airdropPlan.push(plan_[i]);
}
emit AirdropPlanUpdated(airdropId_);
}
/**
* @notice _overwriteAirdropPlan is used to overwrite the existing airdrop plan.
* @param airdropId_ The ID of the airdrop.
* @param plan_ The new airdrop plan to be set.
*/
function _overwriteAirdropPlan(
uint256 airdropId_,
Uint256Pair[] memory plan_
) internal {
if (_airdropPlans[airdropId_].length != plan_.length)
revert ErrInvalidArguments();
for (uint256 i = 0; i < plan_.length; ++i) {
_airdropPlans[airdropId_][i] = plan_[i];
}
emit AirdropPlanUpdated(airdropId_);
}
/**
* @notice for the purpose of protecting user assets, under extreme conditions,
* the circulation of all tokens in the contract needs to be frozen.
* This process is under the supervision of the community.
*/
function emergencyPause() external onlyOwner onlyNotSealed {
_pause();
}
/**
* @notice unpause the contract
*/
function unpause() external onlyOwner onlyNotSealed {
_unpause();
}
/**
* @notice sealContract is used to seal the contract.
*/
function sealContract() external onlyOwner onlyNotSealed {
contractSealed = true;
emit ContractSealed();
}
/***********************************|
| Getters |
|__________________________________*/
/**
* @notice uri is used to get the URI corresponding to the tokenId
* @param tokenId_ token id
* @return metadata uri corresponding to the token
*/
function uri(
uint256 tokenId_
) public view virtual override(ERC1155, IFPXEmoji) returns (string memory) {
return tokenURIs[tokenId_];
}
/**
* @notice isFormulaValid is used to check if a formula is valid.
* @param formula_ The formula to be checked.
* @return This function returns true if the formula is valid, otherwise it returns false.
*/
function isFormulaValid(
Formula memory formula_
) public view returns (bool) {
if (formula_.input.length == 0 || formula_.output.length == 0) {
return false;
}
if (formula_.endTime > 0 && block.timestamp > formula_.endTime) {
return false;
}
return formula_.startTime > 0 && block.timestamp > formula_.startTime;
}
/**
* @notice getFormula is used to get a formula.
* @param formulaId_ The ID of the formula.
* @return formula_ the formula.
* @return valid_ a bool indicating whether the formula is valid.
*/
function getFormula(
uint256 formulaId_
) public view returns (Formula memory formula_, bool valid_) {
formula_ = _formulas[formulaId_];
valid_ = isFormulaValid(formula_);
}
/**
* @notice getAirdropPlan is used to get an airdrop plan.
* @param airdropId_ The ID of the airdrop.
* @return This function returns the airdrop plan.
*/
function getAirdropPlan(
uint256 airdropId_
) external view returns (Uint256Pair[] memory) {
return _airdropPlans[airdropId_];
}
/**
* @notice supportsInterface is used to check if an interface is supported by this contract.
* @param interfaceId The interface ID to be checked.
* @return This function returns true if the interface is supported, otherwise it returns false.
*/
function supportsInterface(
bytes4 interfaceId
) public view virtual override(ERC1155, IERC165) returns (bool) {
return
ERC1155.supportsInterface(interfaceId) ||
ERC165.supportsInterface(interfaceId);
}
/**
* @notice _beforeTokenTransfer is used to perform actions before a token transfer.
* @param operator The address of the operator calling this function.
* @param from The address of the account sending the tokens.
* @param to The address of the account receiving the tokens.
* @param ids The IDs of the tokens being transferred.
* @param amounts The amounts of the tokens being transferred.
* @param data Additional data provided with the transfer.
*/
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);
if (paused()) revert ErrContractPaused();
}
/**
* @notice for security reasons, CA is not allowed to call sensitive methods.
*/
modifier onlyEOA() {
if (tx.origin != msg.sender) revert ErrOnlyEOA();
_;
}
/***********************************|
| Operator Filter Registry |
|__________________________________*/
/**
* @notice setApprovalForAll is used to set an operator's approval for all token transfers.
* @param operator The address of the operator to set approval for.
* @param approved Whether the operator is approved or not.
*/
function setApprovalForAll(
address operator,
bool approved
) public override(ERC1155, IERC1155) onlyAllowedOperatorApproval(operator) {
super.setApprovalForAll(operator, approved);
}
/**
* @notice safeTransferFrom is used to safely transfer tokens from one account to another.
* @param from The address of the account sending the tokens.
* @param to The address of the account receiving the tokens.
* @param tokenId The ID of the token being transferred.
* @param amount The amount of the token being transferred.
* @param data Additional data provided with the transfer.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
uint256 amount,
bytes memory data
) public override(ERC1155, IERC1155) onlyAllowedOperator(from) {
super.safeTransferFrom(from, to, tokenId, amount, data);
}
/**
* @notice safeBatchTransferFrom is used to safely transfer multiple tokens from one account to another.
* @param from The address of the account sending the tokens.
* @param to The address of the account receiving the tokens.
* @param ids The IDs of the tokens being transferred.
* @param amounts The amounts of the tokens being transferred.
* @param data Additional data provided with the transfer.
*/
function safeBatchTransferFrom(
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
) public virtual override(ERC1155, IERC1155) onlyAllowedOperator(from) {
super.safeBatchTransferFrom(from, to, ids, amounts, data);
}
/**
* @notice owner is used to get the owner address of this contract.
* @return the address of the owner of this contract
*/
function owner()
public
view
virtual
override(Ownable, FlexibleOperatorFilterer)
returns (address)
{
return Ownable.owner();
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)
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 Modifier to make a function callable only when the contract is not paused.
*
* Requirements:
*
* - The contract must not be paused.
*/
modifier whenNotPaused() {
_requireNotPaused();
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*
* Requirements:
*
* - The contract must be paused.
*/
modifier whenPaused() {
_requirePaused();
_;
}
/**
* @dev Returns true if the contract is paused, and false otherwise.
*/
function paused() public view virtual returns (bool) {
return _paused;
}
/**
* @dev Throws if the contract is paused.
*/
function _requireNotPaused() internal view virtual {
require(!paused(), "Pausable: paused");
}
/**
* @dev Throws if the contract is not paused.
*/
function _requirePaused() internal view virtual {
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());
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (security/ReentrancyGuard.sol)
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 making it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
// On the first call to nonReentrant, _status will be _NOT_ENTERED
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
}
function _nonReentrantAfter() private {
// 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
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC1155/ERC1155.sol)
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: address zero is not a valid owner");
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 {
_setApprovalForAll(_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 token owner or 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: caller is not token owner or 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();
uint256[] memory ids = _asSingletonArray(id);
uint256[] memory amounts = _asSingletonArray(amount);
_beforeTokenTransfer(operator, from, to, ids, amounts, 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);
_afterTokenTransfer(operator, from, to, ids, amounts, data);
_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);
_afterTokenTransfer(operator, from, to, ids, amounts, data);
_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 `to`.
*
* Emits a {TransferSingle} event.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
* acceptance magic value.
*/
function _mint(
address to,
uint256 id,
uint256 amount,
bytes memory data
) internal virtual {
require(to != address(0), "ERC1155: mint to the zero address");
address operator = _msgSender();
uint256[] memory ids = _asSingletonArray(id);
uint256[] memory amounts = _asSingletonArray(amount);
_beforeTokenTransfer(operator, address(0), to, ids, amounts, data);
_balances[id][to] += amount;
emit TransferSingle(operator, address(0), to, id, amount);
_afterTokenTransfer(operator, address(0), to, ids, amounts, data);
_doSafeTransferAcceptanceCheck(operator, address(0), to, id, amount, data);
}
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_mint}.
*
* 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 _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);
_afterTokenTransfer(operator, address(0), to, ids, amounts, data);
_doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data);
}
/**
* @dev Destroys `amount` tokens of token type `id` from `from`
*
* Emits a {TransferSingle} event.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `from` must have at least `amount` tokens of token type `id`.
*/
function _burn(
address from,
uint256 id,
uint256 amount
) internal virtual {
require(from != address(0), "ERC1155: burn from the zero address");
address operator = _msgSender();
uint256[] memory ids = _asSingletonArray(id);
uint256[] memory amounts = _asSingletonArray(amount);
_beforeTokenTransfer(operator, from, address(0), ids, amounts, "");
uint256 fromBalance = _balances[id][from];
require(fromBalance >= amount, "ERC1155: burn amount exceeds balance");
unchecked {
_balances[id][from] = fromBalance - amount;
}
emit TransferSingle(operator, from, address(0), id, amount);
_afterTokenTransfer(operator, from, address(0), ids, amounts, "");
}
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_burn}.
*
* Emits a {TransferBatch} event.
*
* Requirements:
*
* - `ids` and `amounts` must have the same length.
*/
function _burnBatch(
address from,
uint256[] memory ids,
uint256[] memory amounts
) internal virtual {
require(from != address(0), "ERC1155: burn from the zero address");
require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
address operator = _msgSender();
_beforeTokenTransfer(operator, from, address(0), ids, amounts, "");
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: burn amount exceeds balance");
unchecked {
_balances[id][from] = fromBalance - amount;
}
}
emit TransferBatch(operator, from, address(0), ids, amounts);
_afterTokenTransfer(operator, from, address(0), ids, amounts, "");
}
/**
* @dev Approve `operator` to operate on all of `owner` tokens
*
* Emits an {ApprovalForAll} event.
*/
function _setApprovalForAll(
address owner,
address operator,
bool approved
) internal virtual {
require(owner != operator, "ERC1155: setting approval status for self");
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
}
/**
* @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 `ids` and `amounts` 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 {}
/**
* @dev Hook that is called after 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 _afterTokenTransfer(
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
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/extensions/IERC1155MetadataURI.sol)
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
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol)
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 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
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol)
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.
*
* NOTE: 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.
*
* NOTE: 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
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return 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: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165.sol";
/**
* @dev Implementation of the {IERC165} interface.
*
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
* for the additional interface id that will be supported. For example:
*
* ```solidity
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
* }
* ```
*
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
*/
abstract contract ERC165 is IERC165 {
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}// SPDX-License-Identifier: MIT
import "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
/*
____ _ _
| _ \ | | | |
| |_) | __ _ ___ ___ | | __ _| |__ ___
| _ < / _` / __|/ _ \ | | / _` | '_ \/ __|
| |_) | (_| \__ \ __/ | |___| (_| | |_) \__ \
|____/ \__,_|___/\___| |______\__,_|_.__/|___/
*/
pragma solidity ^0.8.7;
/**
* @title IFPXEmoji
* @author BaseLabs
*/
interface IFPXEmoji is IERC1155 {
error ErrOnlyEOA();
error ErrUnreachableCode();
error ErrNotPermitted();
error ErrContractPaused();
error ErrFormulaAlreadyExists();
error ErrInvalidArguments();
error ErrFormulaIsInvalid();
error ErrInvalidAirdropPlan();
error ErrAirdropPlanAlreadyExists();
event FormulaUpdated(uint256 formulaId);
event AirdropPlanUpdated(uint256 airdropId);
event Rerolled(
address indexed account,
uint256 indexed formulaId,
uint256 indexed tokenId
);
struct Uint256Pair {
uint256 key;
uint256 value;
}
struct Formula {
uint256 startTime;
uint256 endTime;
Uint256Pair[] input;
Uint256Pair[] output;
}
struct Airdrop {
Uint256Pair[] data;
}
/**
* @notice airdrop method handles the airdrop process for a specified airdrop plan. The
* airdrop plan specifies the number of each type of token to be airdropped.
* The function receives an array of addresses and an array of numbers, where
* each number in the array represents the number of tokens to be airdropped to
* the corresponding address in the addresses array.
* @param airdropId_ The ID of the airdrop plan to be used for the airdrop.
* @param addresses_ The array of addresses to receive the airdrop.
* @param nums_ The array of numbers, where each number represents the number
* of tokens to be airdropped to the corresponding address.
*/
function airdrop(
uint256 airdropId_,
address[] calldata addresses_,
uint256[] calldata nums_
) external;
/**
* @notice The merge function merges the given formula and burns its input tokens.
* It then generates a new token using the output of the formula and mints it
* to the caller of the function.
* @param formulaId_ The ID of the formula to be used for the merge.
* @dev The onlyEOA and nonReentrant modifiers are used to restrict the
* caller to external accounts and to prevent reentrancy, respectively.
*/
function merge(uint256 formulaId_) external;
/**
* @notice Burn a batch of tokens from an account.
* @param account_ The address of the account from which the tokens will be burned.
* @param ids_ The IDs of the tokens to burn.
* @param values_ The numbers of the tokens to burn.
*/
function burnBatch(
address account_,
uint256[] memory ids_,
uint256[] memory values_
) external;
/**
* @notice mint is used to mints multiple tokens at once
* @param addresses_ the addresses to which the tokens will be minted
* @param tokenIds_ the token IDs of the tokens to be minted
* @param nums_ the number of tokens to be minted
*/
function mint(
address[] calldata addresses_,
uint256[] calldata tokenIds_,
uint256[] calldata nums_
) external;
/**
* @notice setTokenURI is used to set the URI for a given token ID.
* @param tokenIds_ The IDs of the tokens to set the URI for.
* @param tokenURIs_ The URI values to set for the token IDs.
*/
function setTokenURI(
uint256[] calldata tokenIds_,
string[] calldata tokenURIs_
) external;
/**
* @notice setFormula is used to sets the formula with the given ID.
* @param formulaId_ ID of the formula to set.
* @param formula_ Formula to set.
* @param overwrite_ Flag to indicate if the formula should be overwritten if it already exists.
*/
function setFormula(
uint256 formulaId_,
Formula calldata formula_,
bool overwrite_
) external;
/**
* @notice setAirdropPlan is used to set an airdrop plan for the given airdrop ID.
* If `overwrite` is set to true, the existing plan for the given ID will be overwritten.
* If the given plan is empty or a plan already exists for the given ID and `overwrite` is not set to true, the function will revert.
*
* @param airdropId_ The ID of the airdrop for which to set the plan.
* @param plan_ The airdrop plan to set.
* @param overwrite_ Whether to overwrite an existing plan for the given airdrop ID.
*/
function setAirdropPlan(
uint256 airdropId_,
Uint256Pair[] calldata plan_,
bool overwrite_
) external;
/**
* @notice for the purpose of protecting user assets, under extreme conditions,
* the circulation of all tokens in the contract needs to be frozen.
* This process is under the supervision of the community.
*/
function emergencyPause() external;
/**
* @notice unpause the contract
*/
function unpause() external;
/**
* @notice sealContract is used to seal the contract.
*/
function sealContract() external;
/**
* @notice isFormulaValid is used to check if a formula is valid.
* @param formula_ The formula to be checked.
* @return This function returns true if the formula is valid, otherwise it returns false.
*/
function isFormulaValid(
Formula memory formula_
) external view returns (bool);
/**
* @notice getFormula is used to get a formula.
* @param formulaId_ The ID of the formula.
* @return formula_ the formula.
* @return valid_ a bool indicating whether the formula is valid.
*/
function getFormula(
uint256 formulaId_
) external view returns (Formula memory formula_, bool valid_);
/**
* @notice getAirdropPlan is used to get an airdrop plan.
* @param airdropId_ The ID of the airdrop.
* @return This function returns the airdrop plan.
*/
function getAirdropPlan(
uint256 airdropId_
) external view returns (Uint256Pair[] memory);
/**
* @notice uri is used to get the URI corresponding to the tokenId
* @param tokenId_ token id
* @return metadata uri corresponding to the token
*/
function uri(uint256 tokenId_) external view returns (string memory);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
import {OperatorFilterer} from "./OperatorFilterer.sol";
/**
* @title FlexibleOperatorFilterer
* @author BaseLabs
*/
abstract contract FlexibleOperatorFilterer is OperatorFilterer {
error ErrOnlyOwner();
address constant DEFAULT_SUBSCRIPTION =
address(0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6);
bool public isOperatorFilterRegistryEnabled;
mapping(address => bool) public operatorFilterWhitelist;
constructor() OperatorFilterer(DEFAULT_SUBSCRIPTION, true) {}
modifier onlyAllowedOperator(address from) override {
// Check registry code length to facilitate testing in environments without a deployed registry.
if (
isOperatorFilterRegistryEnabled &&
!operatorFilterWhitelist[msg.sender] &&
address(OPERATOR_FILTER_REGISTRY).code.length > 0
) {
// Allow spending tokens from addresses with balance
// Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred
// from an EOA.
if (from == msg.sender) {
_;
return;
}
if (
!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(
address(this),
msg.sender
)
) {
revert OperatorNotAllowed(msg.sender);
}
}
_;
}
modifier onlyAllowedOperatorApproval(address operator) override {
// Check registry code length to facilitate testing in environments without a deployed registry.
if (
isOperatorFilterRegistryEnabled &&
!operatorFilterWhitelist[operator] &&
address(OPERATOR_FILTER_REGISTRY).code.length > 0
) {
if (
!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(
address(this),
operator
)
) {
revert OperatorNotAllowed(operator);
}
}
_;
}
/**
* @notice setOperatorFilterRegistryWhitelist is used to set the whitelist of operator filter registry.
* @param state_ If state_ is true, OperatorFilterRegistry for this address will be disabled.
*/
function setOperatorFilterRegistryWhitelist(
address address_,
bool state_
) external {
if (msg.sender != owner()) {
revert ErrOnlyOwner();
}
operatorFilterWhitelist[address_] = state_;
}
/**
* @notice setOperatorFilterRegistryState is used to update the state of isOperatorFilterRegistryEnabled flag.
* @param enabled_ If enabled_ is true, OperatorFilterRegistry will be enabled.
*/
function setOperatorFilterRegistryState(bool enabled_) external {
if (msg.sender != owner()) {
revert ErrOnlyOwner();
}
isOperatorFilterRegistryEnabled = enabled_;
}
/**
* @dev assume the contract has an owner, but leave specific Ownable implementation up to inheriting contract
*/
function owner() public view virtual returns (address);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
interface IOperatorFilterRegistry {
function isOperatorAllowed(address registrant, address operator) external view returns (bool);
function register(address registrant) external;
function registerAndSubscribe(address registrant, address subscription) external;
function registerAndCopyEntries(address registrant, address registrantToCopy) external;
function unregister(address addr) external;
function updateOperator(address registrant, address operator, bool filtered) external;
function updateOperators(address registrant, address[] calldata operators, bool filtered) external;
function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external;
function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external;
function subscribe(address registrant, address registrantToSubscribe) external;
function unsubscribe(address registrant, bool copyExistingEntries) external;
function subscriptionOf(address addr) external returns (address registrant);
function subscribers(address registrant) external returns (address[] memory);
function subscriberAt(address registrant, uint256 index) external returns (address);
function copyEntriesOf(address registrant, address registrantToCopy) external;
function isOperatorFiltered(address registrant, address operator) external returns (bool);
function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);
function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);
function filteredOperators(address addr) external returns (address[] memory);
function filteredCodeHashes(address addr) external returns (bytes32[] memory);
function filteredOperatorAt(address registrant, uint256 index) external returns (address);
function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);
function isRegistered(address addr) external returns (bool);
function codeHashOf(address addr) external returns (bytes32);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
import {IOperatorFilterRegistry} from "./IOperatorFilterRegistry.sol";
/**
* @title OperatorFilterer
* @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another
* registrant's entries in the OperatorFilterRegistry.
* @dev This smart contract is meant to be inherited by token contracts so they can use the following:
* - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods.
* - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods.
*/
abstract contract OperatorFilterer {
error OperatorNotAllowed(address operator);
IOperatorFilterRegistry public constant OPERATOR_FILTER_REGISTRY =
IOperatorFilterRegistry(0x000000000000AAeB6D7670E522A718067333cd4E);
constructor(address subscriptionOrRegistrantToCopy, bool subscribe) {
// If an inheriting token contract is deployed to a network without the registry deployed, the modifier
// will not revert, but the contract will need to be registered with the registry once it is deployed in
// order for the modifier to filter addresses.
if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {
if (subscribe) {
OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy);
} else {
if (subscriptionOrRegistrantToCopy != address(0)) {
OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy);
} else {
OPERATOR_FILTER_REGISTRY.register(address(this));
}
}
}
}
modifier onlyAllowedOperator(address from) virtual {
// Check registry code length to facilitate testing in environments without a deployed registry.
if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {
// Allow spending tokens from addresses with balance
// Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred
// from an EOA.
if (from == msg.sender) {
_;
return;
}
if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), msg.sender)) {
revert OperatorNotAllowed(msg.sender);
}
}
_;
}
modifier onlyAllowedOperatorApproval(address operator) virtual {
// Check registry code length to facilitate testing in environments without a deployed registry.
if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {
if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) {
revert OperatorNotAllowed(operator);
}
}
_;
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
/**
* @title OnChainRandom
* @author BaseLabs
*/
contract OnChainRandom {
uint256 private _seed;
/**
* @notice _unsafeRandom is used to generate a random number by on-chain randomness.
* Please note that on-chain random is potentially manipulated by miners,
* so VRF is recommended for most security-sensitive scenarios.
* @return randomly generated number.
*/
function _unsafeRandom() internal returns (uint256) {
unchecked {
_seed++;
return
uint256(
keccak256(
abi.encodePacked(
blockhash(block.number - 1),
block.difficulty,
block.timestamp,
block.coinbase,
_seed,
tx.origin
)
)
);
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
/// @notice define a set of error types
/**
* @title Sealable
* @author BaseLabs
*/
contract Sealable {
error ErrContractSealed();
event ContractSealed();
/// @notice whether the contract is sealed
bool public contractSealed;
/**
* @notice when the project is stable enough, the issuer will call sealContract
* to give up the permission to call emergencyPause and unpause.
*/
function _sealContract() internal {
contractSealed = true;
emit ContractSealed();
}
/**
* @notice function call is only allowed when the contract has not been sealed
*/
modifier onlyNotSealed() {
if (contractSealed) revert ErrContractSealed();
_;
}
}{
"optimizer": {
"enabled": true,
"runs": 200
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"libraries": {}
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ErrAirdropPlanAlreadyExists","type":"error"},{"inputs":[],"name":"ErrContractPaused","type":"error"},{"inputs":[],"name":"ErrContractSealed","type":"error"},{"inputs":[],"name":"ErrFormulaAlreadyExists","type":"error"},{"inputs":[],"name":"ErrFormulaIsInvalid","type":"error"},{"inputs":[],"name":"ErrInvalidAirdropPlan","type":"error"},{"inputs":[],"name":"ErrInvalidArguments","type":"error"},{"inputs":[],"name":"ErrNotPermitted","type":"error"},{"inputs":[],"name":"ErrOnlyEOA","type":"error"},{"inputs":[],"name":"ErrOnlyOwner","type":"error"},{"inputs":[],"name":"ErrUnreachableCode","type":"error"},{"inputs":[{"internalType":"address","name":"operator","type":"address"}],"name":"OperatorNotAllowed","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"airdropId","type":"uint256"}],"name":"AirdropPlanUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[],"name":"ContractSealed","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"formulaId","type":"uint256"}],"name":"FormulaUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"uint256","name":"formulaId","type":"uint256"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Rerolled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256[]","name":"ids","type":"uint256[]"},{"indexed":false,"internalType":"uint256[]","name":"values","type":"uint256[]"}],"name":"TransferBatch","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"id","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"TransferSingle","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"value","type":"string"},{"indexed":true,"internalType":"uint256","name":"id","type":"uint256"}],"name":"URI","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"OPERATOR_FILTER_REGISTRY","outputs":[{"internalType":"contract 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IFPXEmoji.Uint256Pair[]","name":"plan_","type":"tuple[]"},{"internalType":"bool","name":"overwrite_","type":"bool"}],"name":"setAirdropPlan","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"formulaId_","type":"uint256"},{"components":[{"internalType":"uint256","name":"startTime","type":"uint256"},{"internalType":"uint256","name":"endTime","type":"uint256"},{"components":[{"internalType":"uint256","name":"key","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"}],"internalType":"struct IFPXEmoji.Uint256Pair[]","name":"input","type":"tuple[]"},{"components":[{"internalType":"uint256","name":"key","type":"uint256"},{"internalType":"uint256","name":"value","type":"uint256"}],"internalType":"struct IFPXEmoji.Uint256Pair[]","name":"output","type":"tuple[]"}],"internalType":"struct IFPXEmoji.Formula","name":"formula_","type":"tuple"},{"internalType":"bool","name":"overwrite_","type":"bool"}],"name":"setFormula","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"enabled_","type":"bool"}],"name":"setOperatorFilterRegistryState","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"address_","type":"address"},{"internalType":"bool","name":"state_","type":"bool"}],"name":"setOperatorFilterRegistryWhitelist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds_","type":"uint256[]"},{"internalType":"string[]","name":"tokenURIs_","type":"string[]"}],"name":"setTokenURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"tokenURIs","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId_","type":"uint256"}],"name":"uri","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"}]Contract Creation Code
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