Airdrop Operator 권한 획득
1. Contract Deploy
Airdrop 진행할 LP와 Token은 생성 시 정해지며 수정이 불가능합니다.
Contract가 Public 환경에 배포되었는지 확인해주세요.
Owner 계정의 보안에 유의해주세요.
Klaytn 의 Smart contract deploy 는 여기 를 참고해주세요.
KLAY를 Airdrop Token으로 사용할 경우 Token Address는
0x0000000000000000000000000000000000000000로 설정해야 합니다.
pragma solidity 0.5.6;
interface IKIP7 {
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function approve(address spender, uint256 amount) external returns (bool);
function decimals() external view returns (uint8);
}
interface DistributionLike {
function estimateEndBlock() external view returns (uint);
function totalAmount() external view returns (uint);
function blockAmount() external view returns (uint);
function distributableBlock() external view returns (uint);
function distribution() external view returns (uint);
function targetEntries(uint) external view returns (address);
function targetCount() external view returns (uint);
function distributionRate(address) external view returns (uint);
}
interface TreasuryLike {
function fee() external view returns (uint);
function validOperator(address) external view returns (bool);
function distributions(address, address) external view returns (address);
function createKlayDistribution(uint, uint, address[] calldata, uint[] calldata) external payable;
function createTokenDistribution(address, uint, uint, uint, address[] calldata, uint[] calldata) external;
function depositKlay() external payable;
function depositToken(address, uint) external;
function refixBlockAmount(address, uint) external;
function refixDistributionRate(address, address[] calldata, uint[] calldata) external;
}
interface FactoryLike {
function poolExist(address) external view returns (bool);
}
contract Operator {
address constant public treasury = 0x29990aaF04f3D5Ac7d8C88beab1A009C1Ab4936e;
address constant public ksp = 0xC6a2Ad8cC6e4A7E08FC37cC5954be07d499E7654;
address public owner;
address public nextOwner;
address public token;
address public lp;
constructor(address _token, address _lp) public {
owner = msg.sender;
token = _token;
if(token != address(0)) require(IKIP7(token).decimals() != 0);
lp = _lp;
require(FactoryLike(ksp).poolExist(lp));
}
function version() external pure returns (string memory) {
return "AirdropOperator20210824";
}
// valid fallback
function () payable external { }
// ======================= owner method ===========================
modifier onlyOwner {
require(msg.sender == owner);
_;
}
function changeNextOwner(address _nextOwner) public onlyOwner {
nextOwner = _nextOwner;
}
function changeOwner() public {
require(msg.sender == nextOwner);
owner = nextOwner;
nextOwner = address(0);
}
//withdraw tokens remaining in the operator contract
function withdraw(address tokenAddr) public onlyOwner {
uint balance = 0;
if(tokenAddr == address(0)){
balance = (address(this)).balance;
if(balance > 0){
(bool res, ) = owner.call.value(balance)("");
require(res);
}
}
else{
balance = IKIP7(tokenAddr).balanceOf(address(this));
if(balance > 0){
require(IKIP7(tokenAddr).transfer(owner, balance));
}
}
}
// ====================== Stat ====================================
function getAirdropStat() public view returns (
address distributionContract, // airdrop distribution contract address
uint totalAmount, // Total amount of tokens to be distributed
uint blockAmount, // Amount of tokens to be distributed per block
uint distributableBlock, // Block number to airdrop start
uint endBlock, // Block number to airdrop end
uint distributed, // Amount of tokens distributed
uint remain, // amount remaining in the contract
uint targetCount, // airdrop target LP count
address[] memory targets, // airdrop target LP list
uint[] memory rates // airdrop target lp rate list
){
distributionContract = TreasuryLike(treasury).distributions(address(this), token);
DistributionLike dis = DistributionLike(distributionContract);
totalAmount = dis.totalAmount();
blockAmount = dis.blockAmount();
distributableBlock = dis.distributableBlock();
endBlock = dis.estimateEndBlock();
distributed = dis.distribution();
if(token == address(0)){
remain = (distributionContract).balance;
}
else{
remain = IKIP7(token).balanceOf(distributionContract);
}
targetCount = dis.targetCount();
targets = new address[](targetCount);
rates = new uint[](targetCount);
for(uint i = 0; i < targetCount; i++){
targets[i] = dis.targetEntries(i);
rates[i] = dis.distributionRate(targets[i]);
}
}
// ===================== Airdrop method ===========================
///@param totalAmount : Total amount of tokens to be distributed
///@param blockAmount : Amount of tokens to be distributed per block
///@param startBlock : Block number to airdrop start
function createDistribution(
uint totalAmount,
uint blockAmount,
uint startBlock
) public onlyOwner {
TreasuryLike Treasury = TreasuryLike(treasury);
require(Treasury.validOperator(address(this)));
require(Treasury.distributions(address(this), token) == address(0));
require(startBlock >= block.number);
address[] memory targets = new address[](1);
targets[0] = lp;
uint[] memory rates = new uint[](1);
rates[0] = 100;
if(Treasury.fee() > 0){
require(IKIP7(ksp).balanceOf(address(this)) >= Treasury.fee());
require(IKIP7(ksp).approve(treasury, Treasury.fee()));
}
if(token == address(0)){
require((address(this)).balance >= totalAmount);
Treasury.createKlayDistribution.value(totalAmount)(blockAmount, startBlock, targets, rates);
}
else {
require(IKIP7(token).balanceOf(address(this)) >= totalAmount);
require(IKIP7(token).approve(treasury, totalAmount));
Treasury.createTokenDistribution(token, totalAmount, blockAmount, startBlock, targets, rates);
}
}
// Airdrop token deposit
///@param amount : Amount of airdrop token to deposit
function deposit(uint amount) public onlyOwner {
TreasuryLike Treasury = TreasuryLike(treasury);
require(Treasury.validOperator(address(this)));
require(Treasury.distributions(address(this), token) != address(0));
require(amount != 0);
if(token == address(0)){
require((address(this)).balance >= amount);
Treasury.depositKlay.value(amount)();
}
else{
require(IKIP7(token).balanceOf(address(this)) >= amount);
require(IKIP7(token).approve(treasury, amount));
Treasury.depositToken(token, amount);
}
}
// Airdrop amount per block modification function
// The function is applied immediately from the called block
///@param blockAmount : airdrop block amount to change
function refixBlockAmount(uint blockAmount) public onlyOwner {
TreasuryLike Treasury = TreasuryLike(treasury);
require(Treasury.validOperator(address(this)));
require(Treasury.distributions(address(this), token) != address(0));
require(blockAmount != 0);
Treasury.refixBlockAmount(token, blockAmount);
}
}
2. Contract Submission
3. ValidOperator Request
Operator 등록요청 (support@klayswap.com)
Public AirdropOperator Code로 배포된 contract 확인 과정 후 Valid Operator 설정
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