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Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
- Contract name:
- Airdrop
- Optimization enabled
- true
- Compiler version
- v0.8.9+commit.e5eed63a
- Optimization runs
- 200
- EVM Version
- default
- Verified at
- 2024-09-26T15:24:30.318270Z
Constructor Arguments
0x0000000000000000000000009fae2529863bd691b4a7171bdfcf33c7ebb10a65
Arg [0] (address) : 0x9fae2529863bd691b4a7171bdfcf33c7ebb10a65
Contract source code
// SPDX-License-Identifier: No License (None)
pragma solidity ^0.8.0;
/**
* @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 {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor () {
_owner = msg.sender;
emit OwnershipTransferred(address(0), msg.sender);
}
/**
* @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() == msg.sender, "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 {
emit OwnershipTransferred(_owner, address(0));
_owner = 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");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
/**
* @dev Interface of the ERC223 standard as defined in the EIP.
*/
interface IERC223 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);
function transfer(address recipient, uint256 amount, bytes calldata data) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}
abstract contract ERC223Recipient {
/**
* @dev Standard ERC223 function that will handle incoming token transfers.
*
* @param _from Token sender address.
* @param _value Amount of tokens.
* @param _data Transaction metadata.
*/
function tokenReceived(address _from, uint _value, bytes memory _data) external virtual {}
}
contract Airdrop is Ownable, ERC223Recipient {
struct Setting {
uint256 amount;
uint256 duration; // in days
uint256 daysPassed;
}
struct User {
uint256 timestamp;
uint256 amount;
}
struct Participants {
uint256 totalParticipants;
uint256 addedParticipants;
}
IERC223 public token; // token to airdrop
uint256 constant public lockPeriod = 180; // 180 days (6 months) lock period
mapping(uint256 => mapping(address => User)) public receivers; // airdrop ID => user address => amount and timestamp
mapping(uint256 => mapping(uint256 => Participants)) public participants; // airdrop ID => day => Participants
Setting[] public airdrops;
address public system;
event Rescue(address _token, uint256 _amount);
event AirdropCreated(uint256 airdropId, uint256 amount, uint256 duration);
event SetSystem(address _system);
event Airdropped(uint256 indexed airdropId, address indexed user, uint256 amount);
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlySystem() {
require(system == msg.sender, "Ownable: caller is not the owner");
_;
}
constructor (address _token) {
token = IERC223(_token);
}
function setSystem(address _system) onlyOwner external {
system = _system;
emit SetSystem(_system);
}
function createAirdrop(uint256 amount, uint256 duration) onlyOwner external returns(uint256 airdropId) {
airdropId = airdrops.length;
airdrops.push(Setting(amount, duration, 0));
emit AirdropCreated(airdropId, amount, duration);
}
function getAirdropsLength() external view returns (uint256) {
return airdrops.length;
}
function getUserInfo(address user) external view returns(User[] memory) {
uint256 len = airdrops.length;
User[] memory u = new User[](len);
for (uint i = 0; i < len; i++) {
u[i] = receivers[i][user];
}
return u;
}
/**
* @dev Close Airdrop day. Call this function on next day after claiming (after 00:00 UTC)
*
* @param airdropId Airdrop ID.
* @param day Day number of airdrop. From 1 to airdrop duration
* @param totalParticipants Total number of approved user that claim tokens on this day.
*/
function closeDay(uint256 airdropId, uint256 day, uint256 totalParticipants) onlySystem external {
require(participants[airdropId][day].totalParticipants == 0, "Day already closed");
participants[airdropId][day].totalParticipants = totalParticipants;
}
/**
* @dev Add approved users. Call function closeDay() before start add users.
*
* @param airdropId Airdrop ID.
* @param day Day number of airdrop. From 1 to airdrop duration
* @param users The array of approved users whose claim tokens on this day. About 100 users in the array.
*/
function addUsers(uint256 airdropId, uint256 day, address[] calldata users) onlySystem external {
require(airdrops[airdropId].daysPassed + 1 == day, "Day already passed");
require(airdrops[airdropId].daysPassed < airdrops[airdropId].duration, "Airdrop ended");
uint256 timestamp = block.timestamp / 1 days * 1 days; // align timestamp to 00:00 UTC
uint256 totalParticipants = participants[airdropId][day].totalParticipants;
uint256 amount = airdrops[airdropId].amount / (airdrops[airdropId].duration * totalParticipants);
participants[airdropId][day].addedParticipants += users.length;
require (participants[airdropId][day].addedParticipants <= totalParticipants, "Too many users");
if (participants[airdropId][day].addedParticipants == totalParticipants) {
airdrops[airdropId].daysPassed = airdrops[airdropId].daysPassed + 1;
}
for (uint i = 0; i < users.length; i++) {
if (receivers[airdropId][users[i]].timestamp == 0) {
receivers[airdropId][users[i]].timestamp = timestamp;
receivers[airdropId][users[i]].amount = amount;
}
}
}
/**
* @dev Claim tokens on users behalf when lock period ends.
*
* @param airdropId Airdrop ID.
* @param users The array of users whose lock period ended. About 100 users in the array.
*/
function claimToken(uint256 airdropId, address[] calldata users) external {
for (uint i = 0; i < users.length; i++) {
User memory u = receivers[airdropId][users[i]];
if (u.timestamp + lockPeriod <= block.timestamp && u.amount > 0) {
delete receivers[airdropId][users[i]];
token.transfer(users[i], u.amount);
emit Airdropped(airdropId, users[i], u.amount);
}
}
}
function rescueTokens(address _token) onlyOwner external {
uint256 amount = IERC223(_token).balanceOf(address(this));
IERC223(_token).transfer(msg.sender, amount);
emit Rescue(_token, amount);
}
}
Contract ABI
[{"type":"constructor","stateMutability":"nonpayable","inputs":[{"type":"address","name":"_token","internalType":"address"}]},{"type":"event","name":"AirdropCreated","inputs":[{"type":"uint256","name":"airdropId","internalType":"uint256","indexed":false},{"type":"uint256","name":"amount","internalType":"uint256","indexed":false},{"type":"uint256","name":"duration","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"Airdropped","inputs":[{"type":"uint256","name":"airdropId","internalType":"uint256","indexed":true},{"type":"address","name":"user","internalType":"address","indexed":true},{"type":"uint256","name":"amount","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"OwnershipTransferred","inputs":[{"type":"address","name":"previousOwner","internalType":"address","indexed":true},{"type":"address","name":"newOwner","internalType":"address","indexed":true}],"anonymous":false},{"type":"event","name":"Rescue","inputs":[{"type":"address","name":"_token","internalType":"address","indexed":false},{"type":"uint256","name":"_amount","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"SetSystem","inputs":[{"type":"address","name":"_system","internalType":"address","indexed":false}],"anonymous":false},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"addUsers","inputs":[{"type":"uint256","name":"airdropId","internalType":"uint256"},{"type":"uint256","name":"day","internalType":"uint256"},{"type":"address[]","name":"users","internalType":"address[]"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"amount","internalType":"uint256"},{"type":"uint256","name":"duration","internalType":"uint256"},{"type":"uint256","name":"daysPassed","internalType":"uint256"}],"name":"airdrops","inputs":[{"type":"uint256","name":"","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"claimToken","inputs":[{"type":"uint256","name":"airdropId","internalType":"uint256"},{"type":"address[]","name":"users","internalType":"address[]"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"closeDay","inputs":[{"type":"uint256","name":"airdropId","internalType":"uint256"},{"type":"uint256","name":"day","internalType":"uint256"},{"type":"uint256","name":"totalParticipants","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[{"type":"uint256","name":"airdropId","internalType":"uint256"}],"name":"createAirdrop","inputs":[{"type":"uint256","name":"amount","internalType":"uint256"},{"type":"uint256","name":"duration","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getAirdropsLength","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"tuple[]","name":"","internalType":"struct Airdrop.User[]","components":[{"type":"uint256","name":"timestamp","internalType":"uint256"},{"type":"uint256","name":"amount","internalType":"uint256"}]}],"name":"getUserInfo","inputs":[{"type":"address","name":"user","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"lockPeriod","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"owner","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"totalParticipants","internalType":"uint256"},{"type":"uint256","name":"addedParticipants","internalType":"uint256"}],"name":"participants","inputs":[{"type":"uint256","name":"","internalType":"uint256"},{"type":"uint256","name":"","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"timestamp","internalType":"uint256"},{"type":"uint256","name":"amount","internalType":"uint256"}],"name":"receivers","inputs":[{"type":"uint256","name":"","internalType":"uint256"},{"type":"address","name":"","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"renounceOwnership","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"rescueTokens","inputs":[{"type":"address","name":"_token","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setSystem","inputs":[{"type":"address","name":"_system","internalType":"address"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"system","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"contract IERC223"}],"name":"token","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"tokenReceived","inputs":[{"type":"address","name":"_from","internalType":"address"},{"type":"uint256","name":"_value","internalType":"uint256"},{"type":"bytes","name":"_data","internalType":"bytes"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"transferOwnership","inputs":[{"type":"address","name":"newOwner","internalType":"address"}]}]
Contract Creation Code
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