文件 1 的 7:ApeToken.sol
pragma solidity ^0.8.2;
import "ERC20.sol";
import "ECDSA.sol";
import "TokenAccessControl.sol";
contract COToken is ERC20("coordinape.com", "CO"), TokenAccessControl {
uint256 immutable private _cap = 1_000_000_000 ether;
bytes32 private immutable _PERMIT_TYPEHASH = keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
mapping(address => uint256) public nonces;
constructor() {
}
function cap() public view virtual returns (uint256) {
return _cap;
}
function _mint(address account, uint256 amount) internal virtual override {
require(totalSupply() + amount <= cap(), "COToken: cap exceeded");
super._mint(account, amount);
}
function mint(address _account, uint256 _amount) external isMinter(msg.sender) {
_mint(_account, _amount);
}
function DOMAIN_SEPARATOR() public view returns(bytes32) {
uint chainId = block.chainid;
return keccak256(
abi.encode(
keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
keccak256(bytes("coordinape.com")),
keccak256(bytes('1')),
chainId,
address(this)
)
);
}
function permit(address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
require(block.timestamp <= deadline, "COToken: expired deadline");
require(owner != address(0), "COToken: owner can't be ZERO address ");
bytes32 digest = keccak256(
abi.encode(
'\x19\x01',
DOMAIN_SEPARATOR(),
keccak256(abi.encode(_PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))
)
);
address signer = ECDSA.recover(digest, v, r, s);
require(signer == owner, "COToken: invalid signature");
_approve(owner, spender, value);
}
function transfer(address _to, uint256 _amount) public override notPaused returns(bool) {
require(_to != address(this), "COToken: Cannot transfer to self");
return ERC20.transfer(_to, _amount);
}
function transferFrom(address _from, address _to, uint256 _amount) public override notPaused returns(bool) {
require(_to != address(this), "COToken: Cannot transfer to self");
return ERC20.transferFrom(_from, _to, _amount);
}
}
文件 2 的 7:Context.sol
pragma solidity ^0.8.0;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
this;
return msg.data;
}
}
文件 3 的 7:ECDSA.sol
pragma solidity ^0.8.0;
library ECDSA {
function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
if (signature.length != 65) {
revert("ECDSA: invalid signature length");
}
bytes32 r;
bytes32 s;
uint8 v;
assembly {
r := mload(add(signature, 0x20))
s := mload(add(signature, 0x40))
v := byte(0, mload(add(signature, 0x60)))
}
return recover(hash, v, r, s);
}
function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
require(uint256(s) <= 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0, "ECDSA: invalid signature 's' value");
require(v == 27 || v == 28, "ECDSA: invalid signature 'v' value");
address signer = ecrecover(hash, v, r, s);
require(signer != address(0), "ECDSA: invalid signature");
return signer;
}
function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
}
function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
}
}
文件 4 的 7:ERC20.sol
pragma solidity ^0.8.0;
import "IERC20.sol";
import "Context.sol";
contract ERC20 is Context, IERC20 {
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
constructor (string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual returns (string memory) {
return _name;
}
function symbol() public view virtual returns (string memory) {
return _symbol;
}
function decimals() public view virtual returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
_approve(sender, _msgSender(), currentAllowance - amount);
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
return true;
}
function _transfer(address sender, address recipient, uint256 amount) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
_balances[sender] = senderBalance - amount;
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
}
function _approve(address owner, address spender, uint256 amount) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }
}
文件 5 的 7:IERC20.sol
pragma solidity ^0.8.0;
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
文件 6 的 7:Ownable.sol
pragma solidity ^0.8.0;
import "Context.sol";
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
文件 7 的 7:TokenAccessControl.sol
pragma solidity ^0.8.2;
import "Ownable.sol";
contract TokenAccessControl is Ownable {
mapping(address => bool) public minters;
mapping(address => bool) public allowlistedAddresses;
bool public paused;
bool public foreverUnpaused;
bool public mintingDisabled;
bool public allowlistDisabled;
event MintersAdded(address[] minters);
event MintersRemoved(address[] minters);
event AllowlistedAddressesAdded(address[] minters);
event AllowlistedAddressesRemoved(address[] minters);
event AllowlistDisabled();
event PauseStatusChanged(bool status);
event PausingDisabledForever();
event MintingDisabledForever();
modifier notPaused() {
require(!paused || (!allowlistDisabled && allowlistedAddresses[msg.sender]), "AccessControl: User cannot transfer");
_;
}
modifier isMinter(address _caller) {
require(!mintingDisabled, "AccessControl: Contract cannot mint tokens anymore");
require(minters[_caller], "AccessControl: Cannot mint");
_;
}
function disableAllowlist() external onlyOwner {
require(!allowlistDisabled, "AccessControl: Allowlist already disabled");
allowlistDisabled = true;
emit AllowlistDisabled();
}
function changePauseStatus(bool _status) external onlyOwner {
require(!foreverUnpaused, "AccessControl: Contract is unpaused forever");
paused = _status;
emit PauseStatusChanged(_status);
}
function disablePausingForever() external onlyOwner {
require(!foreverUnpaused, "AccessControl: Contract is unpaused forever");
foreverUnpaused = true;
paused = false;
emit PausingDisabledForever();
}
function addMinters(address[] calldata _minters) external onlyOwner {
require(!mintingDisabled, "AccessControl: Contract cannot mint tokens anymore");
for(uint256 i = 0; i < _minters.length; i++)
minters[_minters[i]] = true;
emit MintersAdded(_minters);
}
function removeMinters(address[] calldata _minters) external onlyOwner {
require(!mintingDisabled, "AccessControl: Contract cannot mint tokens anymore");
for(uint256 i = 0; i < _minters.length; i++)
minters[_minters[i]] = false;
emit MintersRemoved(_minters);
}
function addAllowlistedAddresses(address[] calldata _addresses) external onlyOwner {
require(!allowlistDisabled, "AccessControl: Allowlist already disabled");
for(uint256 i = 0; i < _addresses.length; i++)
allowlistedAddresses[_addresses[i]] = true;
emit AllowlistedAddressesAdded(_addresses);
}
function removeAllowlistedAddresses(address[] calldata _addresses) external onlyOwner {
require(!allowlistDisabled, "AccessControl: Allowlist already disabled");
for(uint256 i = 0; i < _addresses.length; i++)
allowlistedAddresses[_addresses[i]] = false;
emit AllowlistedAddressesRemoved(_addresses);
}
function disableMintingForever() external onlyOwner {
require(!mintingDisabled, "AccessControl: Contract cannot mint anymore");
mintingDisabled = true;
emit MintingDisabledForever();
}
}
{
"compilationTarget": {
"ApeToken.sol": "COToken"
},
"evmVersion": "istanbul",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}
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