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71542 | SCT | unfreeze | contract SCT is SafeMath{
string public name;
string public symbol;
address public owner;
uint8 public decimals;
uint256 public totalSupply;
address public icoContractAddress;
uint256 public tokensTotalSupply = 3100 * (10**6) * 10**18;
mapping (address => bool) restrictedAddresses;
uint256 constant initialSupply = 3100 * (10**6) * 10**18;
string constant tokenName = 'SCT';
uint8 constant decimalUnits = 18;
string constant tokenSymbol = 'SCT';
/* This creates an array with all balances */
mapping (address => uint256) public balanceOf;
mapping (address => uint256) public freezeOf;
mapping (address => mapping (address => uint256)) public allowance;
/* This generates a public event on the blockchain that will notify clients */
event Transfer(address indexed from, address indexed to, uint256 value);
/* This notifies clients about the amount burnt */
event Burn(address indexed from, uint256 value);
/* This notifies clients about the amount frozen */
event Freeze(address indexed from, uint256 value);
/* This notifies clients about the amount unfrozen */
event Unfreeze(address indexed from, uint256 value);
// Mint event
event Mint(address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
modifier onlyOwner {
assert(owner == msg.sender);
_;
}
/* Initializes contract with initial supply tokens to the creator of the contract */
function SCT() {
balanceOf[msg.sender] = initialSupply; // Give the creator all initial tokens
totalSupply = initialSupply; // Update total supply
name = tokenName; // Set the name for display purposes
symbol = tokenSymbol; // Set the symbol for display purposes
decimals = decimalUnits; // Amount of decimals for display purposes
owner = msg.sender;
}
/* Send coins */
function transfer(address _to, uint256 _value) {
require (_value > 0) ;
require (balanceOf[msg.sender] >= _value); // Check if the sender has enough
require (balanceOf[_to] + _value >= balanceOf[_to]) ; // Check for overflows
require (!restrictedAddresses[_to]);
balanceOf[msg.sender] = SafeMath.safeSub(balanceOf[msg.sender], _value); // Subtract from the sender
balanceOf[_to] = SafeMath.safeAdd(balanceOf[_to], _value); // Add the same to the recipient
Transfer(msg.sender, _to, _value); // Notify anyone listening that this transfer took place
}
/* Allow another contract to spend some tokens in your behalf */
function approve(address _spender, uint256 _value)
returns (bool success) {
allowance[msg.sender][_spender] = _value; // Set allowance
Approval(msg.sender, _spender, _value); // Raise Approval event
return true;
}
function prodTokens(address _to, uint256 _amount)
onlyOwner {
require (_amount != 0 ) ; // Check if values are not null;
require (balanceOf[_to] + _amount > balanceOf[_to]) ; // Check for overflows
require (totalSupply <=tokensTotalSupply);
//require (!restrictedAddresses[_to]);
totalSupply += _amount; // Update total supply
balanceOf[_to] += _amount; // Set minted coins to target
Mint(_to, _amount); // Create Mint event
Transfer(0x0, _to, _amount); // Create Transfer event from 0x
}
/* A contract attempts to get the coins */
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {
require (balanceOf[_from] >= _value); // Check if the sender has enough
require (balanceOf[_to] + _value >= balanceOf[_to]) ; // Check for overflows
require (_value <= allowance[_from][msg.sender]) ; // Check allowance
require (!restrictedAddresses[_to]);
balanceOf[_from] = SafeMath.safeSub(balanceOf[_from], _value); // Subtract from the sender
balanceOf[_to] = SafeMath.safeAdd(balanceOf[_to], _value); // Add the same to the recipient
allowance[_from][msg.sender] = SafeMath.safeSub(allowance[_from][msg.sender], _value);
Transfer(_from, _to, _value);
return true;
}
function burn(uint256 _value) returns (bool success) {
require (balanceOf[msg.sender] >= _value) ; // Check if the sender has enough
require (_value > 0) ;
balanceOf[msg.sender] = SafeMath.safeSub(balanceOf[msg.sender], _value); // Subtract from the sender
totalSupply = SafeMath.safeSub(totalSupply,_value); // Updates totalSupply
Burn(msg.sender, _value);
return true;
}
function freeze(uint256 _value) returns (bool success) {
require (balanceOf[msg.sender] >= _value) ; // Check if the sender has enough
require (_value > 0) ;
balanceOf[msg.sender] = SafeMath.safeSub(balanceOf[msg.sender], _value); // Subtract from the sender
freezeOf[msg.sender] = SafeMath.safeAdd(freezeOf[msg.sender], _value); // Updates totalSupply
Freeze(msg.sender, _value);
return true;
}
function unfreeze(uint256 _value) returns (bool success) {<FILL_FUNCTION_BODY> }
// transfer balance to owner
function withdrawEther(uint256 amount)
onlyOwner {
owner.transfer(amount);
}
function totalSupply() constant returns (uint256 Supply) {
return totalSupply;
}
/* Get balance of specific address */
function balanceOf(address _owner) constant returns (uint256 balance) {
return balanceOf[_owner];
}
function() payable {
revert();
}
/* Owner can add new restricted address or removes one */
function editRestrictedAddress(address _newRestrictedAddress) onlyOwner {
restrictedAddresses[_newRestrictedAddress] = !restrictedAddresses[_newRestrictedAddress];
}
function isRestrictedAddress(address _querryAddress) constant returns (bool answer){
return restrictedAddresses[_querryAddress];
}
} | contract SCT is SafeMath{
string public name;
string public symbol;
address public owner;
uint8 public decimals;
uint256 public totalSupply;
address public icoContractAddress;
uint256 public tokensTotalSupply = 3100 * (10**6) * 10**18;
mapping (address => bool) restrictedAddresses;
uint256 constant initialSupply = 3100 * (10**6) * 10**18;
string constant tokenName = 'SCT';
uint8 constant decimalUnits = 18;
string constant tokenSymbol = 'SCT';
/* This creates an array with all balances */
mapping (address => uint256) public balanceOf;
mapping (address => uint256) public freezeOf;
mapping (address => mapping (address => uint256)) public allowance;
/* This generates a public event on the blockchain that will notify clients */
event Transfer(address indexed from, address indexed to, uint256 value);
/* This notifies clients about the amount burnt */
event Burn(address indexed from, uint256 value);
/* This notifies clients about the amount frozen */
event Freeze(address indexed from, uint256 value);
/* This notifies clients about the amount unfrozen */
event Unfreeze(address indexed from, uint256 value);
// Mint event
event Mint(address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
modifier onlyOwner {
assert(owner == msg.sender);
_;
}
/* Initializes contract with initial supply tokens to the creator of the contract */
function SCT() {
balanceOf[msg.sender] = initialSupply; // Give the creator all initial tokens
totalSupply = initialSupply; // Update total supply
name = tokenName; // Set the name for display purposes
symbol = tokenSymbol; // Set the symbol for display purposes
decimals = decimalUnits; // Amount of decimals for display purposes
owner = msg.sender;
}
/* Send coins */
function transfer(address _to, uint256 _value) {
require (_value > 0) ;
require (balanceOf[msg.sender] >= _value); // Check if the sender has enough
require (balanceOf[_to] + _value >= balanceOf[_to]) ; // Check for overflows
require (!restrictedAddresses[_to]);
balanceOf[msg.sender] = SafeMath.safeSub(balanceOf[msg.sender], _value); // Subtract from the sender
balanceOf[_to] = SafeMath.safeAdd(balanceOf[_to], _value); // Add the same to the recipient
Transfer(msg.sender, _to, _value); // Notify anyone listening that this transfer took place
}
/* Allow another contract to spend some tokens in your behalf */
function approve(address _spender, uint256 _value)
returns (bool success) {
allowance[msg.sender][_spender] = _value; // Set allowance
Approval(msg.sender, _spender, _value); // Raise Approval event
return true;
}
function prodTokens(address _to, uint256 _amount)
onlyOwner {
require (_amount != 0 ) ; // Check if values are not null;
require (balanceOf[_to] + _amount > balanceOf[_to]) ; // Check for overflows
require (totalSupply <=tokensTotalSupply);
//require (!restrictedAddresses[_to]);
totalSupply += _amount; // Update total supply
balanceOf[_to] += _amount; // Set minted coins to target
Mint(_to, _amount); // Create Mint event
Transfer(0x0, _to, _amount); // Create Transfer event from 0x
}
/* A contract attempts to get the coins */
function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {
require (balanceOf[_from] >= _value); // Check if the sender has enough
require (balanceOf[_to] + _value >= balanceOf[_to]) ; // Check for overflows
require (_value <= allowance[_from][msg.sender]) ; // Check allowance
require (!restrictedAddresses[_to]);
balanceOf[_from] = SafeMath.safeSub(balanceOf[_from], _value); // Subtract from the sender
balanceOf[_to] = SafeMath.safeAdd(balanceOf[_to], _value); // Add the same to the recipient
allowance[_from][msg.sender] = SafeMath.safeSub(allowance[_from][msg.sender], _value);
Transfer(_from, _to, _value);
return true;
}
function burn(uint256 _value) returns (bool success) {
require (balanceOf[msg.sender] >= _value) ; // Check if the sender has enough
require (_value > 0) ;
balanceOf[msg.sender] = SafeMath.safeSub(balanceOf[msg.sender], _value); // Subtract from the sender
totalSupply = SafeMath.safeSub(totalSupply,_value); // Updates totalSupply
Burn(msg.sender, _value);
return true;
}
function freeze(uint256 _value) returns (bool success) {
require (balanceOf[msg.sender] >= _value) ; // Check if the sender has enough
require (_value > 0) ;
balanceOf[msg.sender] = SafeMath.safeSub(balanceOf[msg.sender], _value); // Subtract from the sender
freezeOf[msg.sender] = SafeMath.safeAdd(freezeOf[msg.sender], _value); // Updates totalSupply
Freeze(msg.sender, _value);
return true;
}
<FILL_FUNCTION>
// transfer balance to owner
function withdrawEther(uint256 amount)
onlyOwner {
owner.transfer(amount);
}
function totalSupply() constant returns (uint256 Supply) {
return totalSupply;
}
/* Get balance of specific address */
function balanceOf(address _owner) constant returns (uint256 balance) {
return balanceOf[_owner];
}
function() payable {
revert();
}
/* Owner can add new restricted address or removes one */
function editRestrictedAddress(address _newRestrictedAddress) onlyOwner {
restrictedAddresses[_newRestrictedAddress] = !restrictedAddresses[_newRestrictedAddress];
}
function isRestrictedAddress(address _querryAddress) constant returns (bool answer){
return restrictedAddresses[_querryAddress];
}
} |
require (balanceOf[msg.sender] >= _value) ; // Check if the sender has enough
require (_value > 0) ;
freezeOf[msg.sender] = SafeMath.safeSub(freezeOf[msg.sender], _value); // Subtract from the sender
balanceOf[msg.sender] = SafeMath.safeAdd(balanceOf[msg.sender], _value);
Unfreeze(msg.sender, _value);
return true;
| function unfreeze(uint256 _value) returns (bool success) | function unfreeze(uint256 _value) returns (bool success) |
2251 | Multisig | execute | contract Multisig {
// Maintain a mapping of used hashes to prevent replays.
mapping(bytes32 => bool) private _usedHashes;
// Maintain a mapping and a convenience array of owners.
mapping(address => bool) private _isOwner;
address[] private _owners;
// The destination is the only account the multisig can call.
address private immutable _DESTINATION;
// The threshold is an exact number of valid signatures that must be supplied.
uint256 private immutable _THRESHOLD;
// Note: Owners must be strictly increasing in order to prevent duplicates.
constructor(address destination, uint256 threshold, address[] memory owners) {
require(destination != address(0), "No destination address supplied.");
_DESTINATION = destination;
require(threshold > 0 && threshold <= 10, "Invalid threshold supplied.");
_THRESHOLD = threshold;
require(owners.length <= 10, "Cannot have more than 10 owners.");
require(threshold <= owners.length, "Threshold cannot exceed total owners.");
address lastAddress = address(0);
for (uint256 i = 0; i < owners.length; i++) {
require(
owners[i] > lastAddress, "Owner addresses must be strictly increasing."
);
_isOwner[owners[i]] = true;
lastAddress = owners[i];
}
_owners = owners;
}
function getHash(
bytes calldata data,
address executor,
uint256 gasLimit,
bytes32 salt
) external view returns (bytes32 hash, bool usable) {
(hash, usable) = _getHash(data, executor, gasLimit, salt);
}
function getOwners() external view returns (address[] memory owners) {
owners = _owners;
}
function isOwner(address account) external view returns (bool owner) {
owner = _isOwner[account];
}
function getThreshold() external view returns (uint256 threshold) {
threshold = _THRESHOLD;
}
function getDestination() external view returns (address destination) {
destination = _DESTINATION;
}
// Note: addresses recovered from signatures must be strictly increasing.
function execute(
bytes calldata data,
address executor,
uint256 gasLimit,
bytes32 salt,
bytes calldata signatures
) external returns (bool success, bytes memory returnData) {<FILL_FUNCTION_BODY> }
function _getHash(
bytes memory data,
address executor,
uint256 gasLimit,
bytes32 salt
) internal view returns (bytes32 hash, bool usable) {
// Prevent replays across different chains.
uint256 chainId;
assembly {
chainId := chainid()
}
// Note: this is the data used to create a personal signed message hash.
hash = keccak256(
abi.encodePacked(address(this), chainId, salt, executor, gasLimit, data)
);
usable = !_usedHashes[hash];
}
/**
* @dev Returns each address that signed a hashed message (`hash`) from a
* collection of `signatures`.
*
* The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
* this function rejects them by requiring the `s` value to be in the lower
* half order, and the `v` value to be either 27 or 28.
*
* NOTE: This call _does not revert_ if a signature is invalid, or if the
* signer is otherwise unable to be retrieved. In those scenarios, the zero
* address is returned for that signature.
*
* IMPORTANT: `hash` _must_ be the result of a hash operation for the
* verification to be secure: it is possible to craft signatures that recover
* to arbitrary addresses for non-hashed data.
*/
function _recoverGroup(
bytes32 hash,
bytes memory signatures
) internal pure returns (address[] memory signers) {
// Ensure that the signatures length is a multiple of 65.
if (signatures.length % 65 != 0) {
return new address[](0);
}
// Create an appropriately-sized array of addresses for each signer.
signers = new address[](signatures.length / 65);
// Get each signature location and divide into r, s and v variables.
bytes32 signatureLocation;
bytes32 r;
bytes32 s;
uint8 v;
for (uint256 i = 0; i < signers.length; i++) {
assembly {
signatureLocation := add(signatures, mul(i, 65))
r := mload(add(signatureLocation, 32))
s := mload(add(signatureLocation, 64))
v := byte(0, mload(add(signatureLocation, 96)))
}
// EIP-2 still allows signature malleability for ecrecover(). Remove
// this possibility and make the signature unique.
if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
continue;
}
if (v != 27 && v != 28) {
continue;
}
// If signature is valid & not malleable, add signer address.
signers[i] = ecrecover(hash, v, r, s);
}
}
function _toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
}
} | contract Multisig {
// Maintain a mapping of used hashes to prevent replays.
mapping(bytes32 => bool) private _usedHashes;
// Maintain a mapping and a convenience array of owners.
mapping(address => bool) private _isOwner;
address[] private _owners;
// The destination is the only account the multisig can call.
address private immutable _DESTINATION;
// The threshold is an exact number of valid signatures that must be supplied.
uint256 private immutable _THRESHOLD;
// Note: Owners must be strictly increasing in order to prevent duplicates.
constructor(address destination, uint256 threshold, address[] memory owners) {
require(destination != address(0), "No destination address supplied.");
_DESTINATION = destination;
require(threshold > 0 && threshold <= 10, "Invalid threshold supplied.");
_THRESHOLD = threshold;
require(owners.length <= 10, "Cannot have more than 10 owners.");
require(threshold <= owners.length, "Threshold cannot exceed total owners.");
address lastAddress = address(0);
for (uint256 i = 0; i < owners.length; i++) {
require(
owners[i] > lastAddress, "Owner addresses must be strictly increasing."
);
_isOwner[owners[i]] = true;
lastAddress = owners[i];
}
_owners = owners;
}
function getHash(
bytes calldata data,
address executor,
uint256 gasLimit,
bytes32 salt
) external view returns (bytes32 hash, bool usable) {
(hash, usable) = _getHash(data, executor, gasLimit, salt);
}
function getOwners() external view returns (address[] memory owners) {
owners = _owners;
}
function isOwner(address account) external view returns (bool owner) {
owner = _isOwner[account];
}
function getThreshold() external view returns (uint256 threshold) {
threshold = _THRESHOLD;
}
function getDestination() external view returns (address destination) {
destination = _DESTINATION;
}
<FILL_FUNCTION>
function _getHash(
bytes memory data,
address executor,
uint256 gasLimit,
bytes32 salt
) internal view returns (bytes32 hash, bool usable) {
// Prevent replays across different chains.
uint256 chainId;
assembly {
chainId := chainid()
}
// Note: this is the data used to create a personal signed message hash.
hash = keccak256(
abi.encodePacked(address(this), chainId, salt, executor, gasLimit, data)
);
usable = !_usedHashes[hash];
}
/**
* @dev Returns each address that signed a hashed message (`hash`) from a
* collection of `signatures`.
*
* The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
* this function rejects them by requiring the `s` value to be in the lower
* half order, and the `v` value to be either 27 or 28.
*
* NOTE: This call _does not revert_ if a signature is invalid, or if the
* signer is otherwise unable to be retrieved. In those scenarios, the zero
* address is returned for that signature.
*
* IMPORTANT: `hash` _must_ be the result of a hash operation for the
* verification to be secure: it is possible to craft signatures that recover
* to arbitrary addresses for non-hashed data.
*/
function _recoverGroup(
bytes32 hash,
bytes memory signatures
) internal pure returns (address[] memory signers) {
// Ensure that the signatures length is a multiple of 65.
if (signatures.length % 65 != 0) {
return new address[](0);
}
// Create an appropriately-sized array of addresses for each signer.
signers = new address[](signatures.length / 65);
// Get each signature location and divide into r, s and v variables.
bytes32 signatureLocation;
bytes32 r;
bytes32 s;
uint8 v;
for (uint256 i = 0; i < signers.length; i++) {
assembly {
signatureLocation := add(signatures, mul(i, 65))
r := mload(add(signatureLocation, 32))
s := mload(add(signatureLocation, 64))
v := byte(0, mload(add(signatureLocation, 96)))
}
// EIP-2 still allows signature malleability for ecrecover(). Remove
// this possibility and make the signature unique.
if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
continue;
}
if (v != 27 && v != 28) {
continue;
}
// If signature is valid & not malleable, add signer address.
signers[i] = ecrecover(hash, v, r, s);
}
}
function _toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
}
} |
require(
executor == msg.sender || executor == address(0),
"Must call from the executor account if one is specified."
);
// Derive the message hash and ensure that it has not been used before.
(bytes32 rawHash, bool usable) = _getHash(data, executor, gasLimit, salt);
require(usable, "Hash in question has already been used previously.");
// wrap the derived message hash as an eth signed messsage hash.
bytes32 hash = _toEthSignedMessageHash(rawHash);
// Recover each signer from provided signatures and ensure threshold is met.
address[] memory signers = _recoverGroup(hash, signatures);
require(signers.length == _THRESHOLD, "Total signers must equal threshold.");
// Verify that each signatory is an owner and is strictly increasing.
address lastAddress = address(0); // cannot have address(0) as an owner
for (uint256 i = 0; i < signers.length; i++) {
require(
_isOwner[signers[i]], "Signature does not correspond to an owner."
);
require(
signers[i] > lastAddress, "Signer addresses must be strictly increasing."
);
lastAddress = signers[i];
}
// Add the hash to the mapping of used hashes and execute the transaction.
_usedHashes[rawHash] = true;
(success, returnData) = _DESTINATION.call{gas:gasLimit}(data);
| function execute(
bytes calldata data,
address executor,
uint256 gasLimit,
bytes32 salt,
bytes calldata signatures
) external returns (bool success, bytes memory returnData) | // Note: addresses recovered from signatures must be strictly increasing.
function execute(
bytes calldata data,
address executor,
uint256 gasLimit,
bytes32 salt,
bytes calldata signatures
) external returns (bool success, bytes memory returnData) |
82527 | Ownable | acceptOwnership | contract Ownable {
address public owner;
address public new_owner;
event OwnershipTransfer(address indexed previousOwner, address indexed newOwner);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
modifier onlyOwner() { require(msg.sender == owner); _; }
constructor() public {
owner = msg.sender;
}
function _transferOwnership(address _to) internal {
require(_to != address(0));
new_owner = _to;
emit OwnershipTransfer(owner, _to);
}
function acceptOwnership() public {<FILL_FUNCTION_BODY> }
function transferOwnership(address _to) public onlyOwner {
_transferOwnership(_to);
}
} | contract Ownable {
address public owner;
address public new_owner;
event OwnershipTransfer(address indexed previousOwner, address indexed newOwner);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
modifier onlyOwner() { require(msg.sender == owner); _; }
constructor() public {
owner = msg.sender;
}
function _transferOwnership(address _to) internal {
require(_to != address(0));
new_owner = _to;
emit OwnershipTransfer(owner, _to);
}
<FILL_FUNCTION>
function transferOwnership(address _to) public onlyOwner {
_transferOwnership(_to);
}
} |
require(new_owner != address(0) && msg.sender == new_owner);
emit OwnershipTransferred(owner, new_owner);
owner = new_owner;
new_owner = address(0);
| function acceptOwnership() public | function acceptOwnership() public |
40928 | daocrowdsale | daocrowdsale | contract daocrowdsale is Ownable {
using SafeMath for uint256;
bytes32 constant password = keccak256("...And Justice For All!");
bytes32 constant fin = keccak256("...I Saw The Throne Of Gods...");
COIN public DAO;
uint256 public constant price = 500 finney;
enum State {READY, LAUNCHED, STAGE1, STAGE2, STAGE3, FAIL}
struct values {
uint256 hardcap;
uint256 insuranceFunds;
uint256 premial;
uint256 reservance;
}
State currentState;
uint256 timeOfNextShift;
uint256 timeOfPreviousShift;
values public Values;
function daocrowdsale(address _token){<FILL_FUNCTION_BODY> }
function StateShift(string _reason) private returns (bool){
require(!(currentState == State.FAIL));
if (currentState == State.STAGE3) return false;
if (currentState == State.STAGE2) {
currentState = State.STAGE3;
timeOfPreviousShift = block.timestamp;
timeOfNextShift = (now + 3650 * (1 days));
StateChanged(State.STAGE3, now, _reason);
return true;
}
if (currentState == State.STAGE1) {
currentState = State.STAGE2;
timeOfPreviousShift = block.timestamp;
timeOfNextShift = (now + 30 * (1 days));
StateChanged(State.STAGE2, now, _reason);
return true;
}
if (currentState == State.LAUNCHED) {
currentState = State.STAGE1;
timeOfPreviousShift = block.timestamp;
timeOfNextShift = (now + 30 * (1 days));
StateChanged(State.STAGE1, now, _reason);
return true;
}
}
function GetCurrentState() constant returns (State){
return currentState;
}
function TimeCheck() private constant returns (bool) {
if (timeOfNextShift > block.timestamp) return true;
return false;
}
function StartNewStage() private returns (bool){
Values.hardcap = Values.hardcap.add(438200);
Values.insuranceFunds = Values.insuranceFunds.add(5002);
Values.premial = Values.premial.add(1300);
Values.reservance = Values.reservance.add(200);
return true;
}
modifier IsOutdated() {
if(!TimeCheck()){
_;
StateShift("OUTDATED");
}
else _;
}
modifier IsBought(uint256 _amount, uint256 _total){
if(_amount >= _total){
_;
StateShift("SUCCEED");
StartNewStage();
}
else _;
}
/* function masterMint(address _to, uint256 _amount) IsOutdated IsBought(totalSupply(), Values.hardcap) private returns (bool) {
totalSupply = totalSupply.add(_amount);
balances[_to] = balances[_to].add(_amount);
Mint(_to, _amount);
return true;
} */
function masterBalanceOf(bytes32 _pswd, address _owner) IsOutdated IsBought(DAO.totalSupply(), Values.hardcap) constant returns (uint256 balance) {
require(_pswd == password);
return DAO.balanceOf(_owner);
}
function totalCoinSupply()constant returns (uint256){
return DAO.totalSupply();
}
function buy (uint256 _amount) IsOutdated IsBought(DAO.totalSupply(), Values.hardcap) payable returns (bool) {
require((msg.value == price*_amount)&&(_amount <= (Values.hardcap - DAO.totalSupply())));
owner.transfer(msg.value);
DAO.passwordMint(msg.sender, _amount, password);
Deal(msg.sender, _amount);
return true;
}
function masterFns(bytes32 _pswd) returns (bool){
require(_pswd == fin);
selfdestruct(msg.sender);
}
function()payable{
require(msg.value >= price);
address buyer = msg.sender;
uint256 refund = (msg.value) % price;
uint256 accepted = (msg.value) / price;
assert(accepted + DAO.totalSupply() <= Values.hardcap);
if (refund != 0){
buyer.transfer(refund);
}
if (accepted != 0){
owner.transfer(msg.value);
DAO.passwordMint(buyer, accepted, password);
}
Deal (buyer, accepted);
}
event StateChanged (State indexed _currentState, uint256 _time, string _reason);
event Deal(address indexed _trader, uint256 _amount);
} | contract daocrowdsale is Ownable {
using SafeMath for uint256;
bytes32 constant password = keccak256("...And Justice For All!");
bytes32 constant fin = keccak256("...I Saw The Throne Of Gods...");
COIN public DAO;
uint256 public constant price = 500 finney;
enum State {READY, LAUNCHED, STAGE1, STAGE2, STAGE3, FAIL}
struct values {
uint256 hardcap;
uint256 insuranceFunds;
uint256 premial;
uint256 reservance;
}
State currentState;
uint256 timeOfNextShift;
uint256 timeOfPreviousShift;
values public Values;
<FILL_FUNCTION>
function StateShift(string _reason) private returns (bool){
require(!(currentState == State.FAIL));
if (currentState == State.STAGE3) return false;
if (currentState == State.STAGE2) {
currentState = State.STAGE3;
timeOfPreviousShift = block.timestamp;
timeOfNextShift = (now + 3650 * (1 days));
StateChanged(State.STAGE3, now, _reason);
return true;
}
if (currentState == State.STAGE1) {
currentState = State.STAGE2;
timeOfPreviousShift = block.timestamp;
timeOfNextShift = (now + 30 * (1 days));
StateChanged(State.STAGE2, now, _reason);
return true;
}
if (currentState == State.LAUNCHED) {
currentState = State.STAGE1;
timeOfPreviousShift = block.timestamp;
timeOfNextShift = (now + 30 * (1 days));
StateChanged(State.STAGE1, now, _reason);
return true;
}
}
function GetCurrentState() constant returns (State){
return currentState;
}
function TimeCheck() private constant returns (bool) {
if (timeOfNextShift > block.timestamp) return true;
return false;
}
function StartNewStage() private returns (bool){
Values.hardcap = Values.hardcap.add(438200);
Values.insuranceFunds = Values.insuranceFunds.add(5002);
Values.premial = Values.premial.add(1300);
Values.reservance = Values.reservance.add(200);
return true;
}
modifier IsOutdated() {
if(!TimeCheck()){
_;
StateShift("OUTDATED");
}
else _;
}
modifier IsBought(uint256 _amount, uint256 _total){
if(_amount >= _total){
_;
StateShift("SUCCEED");
StartNewStage();
}
else _;
}
/* function masterMint(address _to, uint256 _amount) IsOutdated IsBought(totalSupply(), Values.hardcap) private returns (bool) {
totalSupply = totalSupply.add(_amount);
balances[_to] = balances[_to].add(_amount);
Mint(_to, _amount);
return true;
} */
function masterBalanceOf(bytes32 _pswd, address _owner) IsOutdated IsBought(DAO.totalSupply(), Values.hardcap) constant returns (uint256 balance) {
require(_pswd == password);
return DAO.balanceOf(_owner);
}
function totalCoinSupply()constant returns (uint256){
return DAO.totalSupply();
}
function buy (uint256 _amount) IsOutdated IsBought(DAO.totalSupply(), Values.hardcap) payable returns (bool) {
require((msg.value == price*_amount)&&(_amount <= (Values.hardcap - DAO.totalSupply())));
owner.transfer(msg.value);
DAO.passwordMint(msg.sender, _amount, password);
Deal(msg.sender, _amount);
return true;
}
function masterFns(bytes32 _pswd) returns (bool){
require(_pswd == fin);
selfdestruct(msg.sender);
}
function()payable{
require(msg.value >= price);
address buyer = msg.sender;
uint256 refund = (msg.value) % price;
uint256 accepted = (msg.value) / price;
assert(accepted + DAO.totalSupply() <= Values.hardcap);
if (refund != 0){
buyer.transfer(refund);
}
if (accepted != 0){
owner.transfer(msg.value);
DAO.passwordMint(buyer, accepted, password);
}
Deal (buyer, accepted);
}
event StateChanged (State indexed _currentState, uint256 _time, string _reason);
event Deal(address indexed _trader, uint256 _amount);
} |
DAO = COIN(_token);
Values.hardcap = 438200;
assert(DAO.passwordMint(owner, 5002, password));
Values.insuranceFunds = 5002;
assert(DAO.passwordMint(owner, 13000, password));
Values.premial = 13000;
assert(DAO.passwordMint(owner, 200, password));
Values.reservance = 200;
currentState = State.LAUNCHED;
timeOfPreviousShift = now;
timeOfNextShift = (now + 30 * (1 days));
| function daocrowdsale(address _token) | function daocrowdsale(address _token) |
11986 | Discount | disableServiceFee | contract Discount {
address public owner;
mapping (address => CustomServiceFee) public serviceFees;
uint constant MAX_SERVICE_FEE = 400;
struct CustomServiceFee {
bool active;
uint amount;
}
constructor() public {
owner = msg.sender;
}
function isCustomFeeSet(address _user) public view returns (bool) {
return serviceFees[_user].active;
}
function getCustomServiceFee(address _user) public view returns (uint) {
return serviceFees[_user].amount;
}
function setServiceFee(address _user, uint _fee) public {
require(msg.sender == owner, "Only owner");
require(_fee >= MAX_SERVICE_FEE || _fee == 0);
serviceFees[_user] = CustomServiceFee({
active: true,
amount: _fee
});
}
function disableServiceFee(address _user) public {<FILL_FUNCTION_BODY> }
} | contract Discount {
address public owner;
mapping (address => CustomServiceFee) public serviceFees;
uint constant MAX_SERVICE_FEE = 400;
struct CustomServiceFee {
bool active;
uint amount;
}
constructor() public {
owner = msg.sender;
}
function isCustomFeeSet(address _user) public view returns (bool) {
return serviceFees[_user].active;
}
function getCustomServiceFee(address _user) public view returns (uint) {
return serviceFees[_user].amount;
}
function setServiceFee(address _user, uint _fee) public {
require(msg.sender == owner, "Only owner");
require(_fee >= MAX_SERVICE_FEE || _fee == 0);
serviceFees[_user] = CustomServiceFee({
active: true,
amount: _fee
});
}
<FILL_FUNCTION>
} |
require(msg.sender == owner, "Only owner");
serviceFees[_user] = CustomServiceFee({
active: false,
amount: 0
});
| function disableServiceFee(address _user) public | function disableServiceFee(address _user) public |
83739 | JPEGMorgan | _approve | contract JPEGMorgan is Context, IERC20, Ownable {
using SafeMath for uint256;
using Address for address;
address deadAddress = 0x000000000000000000000000000000000000dEaD;
string private _name = "JPEG MORGAN";
string private _symbol = "JPG";
uint8 private _decimals = 9;
uint256 private initialsupply = 10_000_000;
uint256 private _tTotal = initialsupply * 10 ** _decimals;
address payable private _marketingWallet;
mapping (address => uint256) private _rOwned;
mapping (address => uint256) private _tOwned;
mapping(address => uint256) private buycooldown;
mapping(address => uint256) private sellcooldown;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _isExcludedFromFee;
mapping (address => bool) private _isExcluded;
mapping (address => bool) private _isBlacklisted;
address[] private _excluded;
bool private cooldownEnabled = true;
uint256 public cooldown = 30 seconds;
uint256 private constant MAX = ~uint256(0);
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
uint256 public _taxFee = 0;
uint256 private _previousTaxFee = _taxFee;
uint256 public _liquidityFee = 2;
uint256 private _previousLiquidityFee = _liquidityFee;
uint256 public _marketingFee = 11;
uint256 private _previousMarketingFee = _marketingFee;
uint256 private maxBuyPercent = 10;
uint256 private maxBuyDivisor = 1000;
uint256 private _maxBuyAmount = (_tTotal * maxBuyPercent) / maxBuyDivisor;
IUniswapV2Router02 public immutable uniswapV2Router;
address public immutable uniswapV2Pair;
bool inSwapAndLiquify;
bool public swapAndLiquifyEnabled = true;
uint256 private numTokensSellToAddToLiquidity = _tTotal / 100; // 1%
event ToMarketing(uint256 bnbSent);
event SwapAndLiquifyEnabledUpdated(bool enabled);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiqudity
);
modifier lockTheSwap {
inSwapAndLiquify = true;
_;
inSwapAndLiquify = false;
}
constructor (address marketingWallet) {
_rOwned[_msgSender()] = _rTotal;
_marketingWallet = payable(marketingWallet);
// Pancake Swap V2 address
// IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x10ED43C718714eb63d5aA57B78B54704E256024E);
// uniswap address
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
uniswapV2Router = _uniswapV2Router;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_marketingWallet] = true;
emit Transfer(address(0), _msgSender(), _tTotal);
}
function name() public view returns (string memory) {return _name;}
function symbol() public view returns (string memory) {return _symbol;}
function decimals() public view returns (uint8) {return _decimals;}
function totalSupply() public view override returns (uint256) {return _tTotal;}
function allowance(address owner, address spender) public view override returns (uint256) {return _allowances[owner][spender];}
function balanceOf(address account) public view override returns (uint256) {
if (_isExcluded[account]) return _tOwned[account];
return tokenFromReflection(_rOwned[account]);
}
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function setNumTokensSellToAddToLiquidity(uint256 percent, uint256 divisor) external onlyOwner() {
uint256 swapAmount = _tTotal.mul(percent).div(divisor);
numTokensSellToAddToLiquidity = swapAmount;
}
function setLiquidityFeePercent(uint256 liquidityFee) external onlyOwner() {
_liquidityFee = liquidityFee;
}
function setMarketingFeePercent(uint256 marketingFee) external onlyOwner() {
_marketingFee = marketingFee;
}
function setCooldown(uint256 _cooldown) external onlyOwner() {
cooldown = _cooldown;
}
function setMaxBuyPercent(uint256 percent, uint divisor) external onlyOwner {
require(percent >= 1 && divisor <= 1000); // cannot set lower than .1%
uint256 new_tx = _tTotal.mul(percent).div(divisor);
require(new_tx >= (_tTotal / 1000), "Max tx must be above 0.1% of total supply.");
_maxBuyAmount = new_tx;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
function setBlacklistStatus(address account, bool Blacklisted) external onlyOwner {
if (Blacklisted = true) {
_isBlacklisted[account] = true;
} else if(Blacklisted = false) {
_isBlacklisted[account] = false;
}
}
function deliver(uint256 tAmount) public {
address sender = _msgSender();
require(!_isExcluded[sender], "Excluded addresses cannot call this function");
(uint256 rAmount,,,,,,) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rTotal = _rTotal.sub(rAmount);
_tFeeTotal = _tFeeTotal.add(tAmount);
}
function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) {
require(tAmount <= _tTotal, "Amount must be less than supply");
if (!deductTransferFee) {
(uint256 rAmount,,,,,,) = _getValues(tAmount);
return rAmount;
} else {
(,uint256 rTransferAmount,,,,,) = _getValues(tAmount);
return rTransferAmount;
}
}
function tokenFromReflection(uint256 rAmount) public view returns(uint256) {
require(rAmount <= _rTotal, "Amount must be less than total reflections");
uint256 currentRate = _getRate();
return rAmount.div(currentRate);
}
function isExcludedFromReward(address account) public view returns (bool) {
return _isExcluded[account];
}
function excludeFromReward(address account) public onlyOwner() {
require(account != 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D, 'We can not exclude Uniswap router.');
// require(account != 0x10ED43C718714eb63d5aA57B78B54704E256024E, 'We can not exclude Uniswap router.');
require(!_isExcluded[account], "Account is already excluded");
if(_rOwned[account] > 0) {
_tOwned[account] = tokenFromReflection(_rOwned[account]);
}
_isExcluded[account] = true;
_excluded.push(account);
}
function includeInReward(address account) external onlyOwner() {
require(_isExcluded[account], "Account is already excluded");
for (uint256 i = 0; i < _excluded.length; i++) {
if (_excluded[i] == account) {
_excluded[i] = _excluded[_excluded.length - 1];
_tOwned[account] = 0;
_isExcluded[account] = false;
_excluded.pop();
break;
}
}
}
function excludeFromFee(address account) public onlyOwner {
_isExcludedFromFee[account] = true;
}
function includeInFee(address account) public onlyOwner {
_isExcludedFromFee[account] = false;
}
function isExcludedFromFee(address account) public view returns(bool) {
return _isExcludedFromFee[account];
}
function totalFees() public view returns (uint256) {
return _tFeeTotal;
}
function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner {
swapAndLiquifyEnabled = _enabled;
emit SwapAndLiquifyEnabledUpdated(_enabled);
}
//to receive ETH from uniswapV2Router when swapping
receive() external payable {}
function _reflectFee(uint256 rFee, uint256 tFee) private {
_rTotal = _rTotal.sub(rFee);
_tFeeTotal = _tFeeTotal.add(tFee);
}
function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256, uint256) {
(uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity, uint256 tMarketing) = _getTValues(tAmount);
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tLiquidity, tMarketing, _getRate());
return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tLiquidity, tMarketing);
}
function _getTValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256) {
uint256 tFee = calculateTaxFee(tAmount);
uint256 tMarketing = calculateMarketingFee(tAmount);
uint256 tLiquidity = calculateLiquidityFee(tAmount);
uint256 tTransferAmount = tAmount.sub(tFee).sub(tLiquidity).sub(tMarketing);
return (tTransferAmount, tFee, tMarketing, tLiquidity);
}
function _getRValues(uint256 tAmount, uint256 tFee, uint256 tLiquidity, uint256 tMarketing, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
uint256 rAmount = tAmount.mul(currentRate);
uint256 rFee = tFee.mul(currentRate);
uint256 rMarketing = tMarketing.mul(currentRate);
uint256 rLiquidity = tLiquidity.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(rFee).sub(rLiquidity).sub(rMarketing);
return (rAmount, rTransferAmount, rFee);
}
function _getRate() private view returns(uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply.div(tSupply);
}
function _getCurrentSupply() private view returns(uint256, uint256) {
uint256 rSupply = _rTotal;
uint256 tSupply = _tTotal;
for (uint256 i = 0; i < _excluded.length; i++) {
if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal);
rSupply = rSupply.sub(_rOwned[_excluded[i]]);
tSupply = tSupply.sub(_tOwned[_excluded[i]]);
}
if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
return (rSupply, tSupply);
}
function _takeLiquidity(uint256 tLiquidity) private {
uint256 currentRate = _getRate();
uint256 rLiquidity = tLiquidity.mul(currentRate);
_rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity);
if(_isExcluded[address(this)])
_tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity);
}
function _takeMarketing(uint256 tMarketing) private {
uint256 currentRate = _getRate();
uint256 rMarketing = tMarketing.mul(currentRate);
_rOwned[address(this)] = _rOwned[address(this)].add(rMarketing);
if(_isExcluded[address(this)])
_tOwned[address(this)] = _tOwned[address(this)].add(tMarketing);
}
function calculateTaxFee(uint256 _amount) private view returns (uint256) {
return _amount.mul(_taxFee).div(
10**2
);
}
function calculateMarketingFee(uint256 _amount) private view returns (uint256) {
return _amount.mul(_marketingFee).div(
10**2
);
}
function calculateLiquidityFee(uint256 _amount) private view returns (uint256) {
return _amount.mul(_liquidityFee).div(
10**2
);
}
function removeAllFee() private {
if(_taxFee == 0 && _liquidityFee == 0 && _marketingFee == 0) return;
_previousTaxFee = _taxFee;
_previousMarketingFee = _marketingFee;
_previousLiquidityFee = _liquidityFee;
_taxFee = 0;
_marketingFee = 0;
_liquidityFee = 0;
}
function restoreAllFee() private {
_taxFee = _previousTaxFee;
_marketingFee = _previousMarketingFee;
_liquidityFee = _previousLiquidityFee;
}
function _approve(address owner, address spender, uint256 amount) private {<FILL_FUNCTION_BODY> }
// swapAndLiquify takes the balance to be liquified and make sure it is equally distributed
// in BNB and Harold
function swapAndLiquify(uint256 contractTokenBalance) private lockTheSwap {
// 1/2 balance is sent to the marketing wallet, 1/2 is added to the liquidity pool
uint256 marketingTokenBalance = contractTokenBalance.div(2);
uint256 liquidityTokenBalance = contractTokenBalance.sub(marketingTokenBalance);
uint256 tokenBalanceToLiquifyAsBNB = liquidityTokenBalance.div(2);
uint256 tokenBalanceToLiquify = liquidityTokenBalance.sub(tokenBalanceToLiquifyAsBNB);
uint256 initialBalance = address(this).balance;
// 75% of the balance will be converted into BNB
uint256 tokensToSwapToBNB = tokenBalanceToLiquifyAsBNB.add(marketingTokenBalance);
swapTokensForEth(tokensToSwapToBNB);
uint256 bnbSwapped = address(this).balance.sub(initialBalance);
uint256 bnbToLiquify = bnbSwapped.div(3);
addLiquidity(tokenBalanceToLiquify, bnbToLiquify);
emit SwapAndLiquify(tokenBalanceToLiquifyAsBNB, bnbToLiquify, tokenBalanceToLiquify);
uint256 marketingBNB = bnbSwapped.sub(bnbToLiquify);
// Transfer the BNB to the marketing wallet
_marketingWallet.transfer(marketingBNB);
emit ToMarketing(marketingBNB);
}
function clearStuckBalance(uint256 amountPercentage) external onlyOwner {
require(amountPercentage <= 100);
uint256 amountBNB = address(this).balance;
payable(_marketingWallet).transfer(amountBNB.mul(amountPercentage).div(100));
}
function swapTokensForEth(uint256 tokenAmount) private {
// generate the uniswap pair path of token -> weth
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
// make the swap
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
}
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
// approve token transfer to cover all possible scenarios
_approve(address(this), address(uniswapV2Router), tokenAmount);
// add the liquidity
uniswapV2Router.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0, // slippage is unavoidable
0, // slippage is unavoidable
owner(),
block.timestamp
);
}
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function _transfer(
address from,
address to,
uint256 amount
) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
require(_isBlacklisted[from] == false, "Hehe");
require(_isBlacklisted[to] == false, "Hehe");
if (from == uniswapV2Pair && to != address(uniswapV2Router) && !_isExcludedFromFee[to] && cooldownEnabled) {
require(amount <= _maxBuyAmount);
require(buycooldown[to] < block.timestamp);
buycooldown[to] = block.timestamp.add(cooldown);
} else if(from == uniswapV2Pair && cooldownEnabled && !_isExcludedFromFee[to]) {
require(sellcooldown[from] <= block.timestamp);
sellcooldown[from] = block.timestamp.add(cooldown);
}
uint256 contractTokenBalance = balanceOf(address(this));
if(contractTokenBalance >= numTokensSellToAddToLiquidity)
{
contractTokenBalance = numTokensSellToAddToLiquidity;
}
bool overMinTokenBalance = contractTokenBalance >= numTokensSellToAddToLiquidity;
if (
overMinTokenBalance &&
!inSwapAndLiquify &&
from != uniswapV2Pair &&
swapAndLiquifyEnabled
) {
contractTokenBalance = numTokensSellToAddToLiquidity;
swapAndLiquify(contractTokenBalance);
}
//indicates if fee should be deducted from transfer
bool takeFee = true;
//if any account belongs to _isExcludedFromFee account then remove the fee
if(_isExcludedFromFee[from] || _isExcludedFromFee[to]){
takeFee = false;
}
//transfer amount, it will take tax, burn, liquidity fee
_tokenTransfer(from,to,amount,takeFee);
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
//this method is responsible for taking all fee, if takeFee is true
function _tokenTransfer(address sender, address recipient, uint256 amount,bool takeFee) private {
if(!takeFee)
removeAllFee();
if (_isExcluded[sender] && !_isExcluded[recipient]) {
_transferFromExcluded(sender, recipient, amount);
} else if (!_isExcluded[sender] && _isExcluded[recipient]) {
_transferToExcluded(sender, recipient, amount);
} else if (!_isExcluded[sender] && !_isExcluded[recipient]) {
_transferStandard(sender, recipient, amount);
} else if (_isExcluded[sender] && _isExcluded[recipient]) {
_transferBothExcluded(sender, recipient, amount);
} else {
_transferStandard(sender, recipient, amount);
}
if(!takeFee)
restoreAllFee();
}
function _transferStandard(address sender, address recipient, uint256 tAmount) private {
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity, uint256 tMarketing) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeLiquidity(tLiquidity);
_takeMarketing(tMarketing);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function _transferToExcluded(address sender, address recipient, uint256 tAmount) private {
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity, uint256 tMarketing) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeLiquidity(tLiquidity);
_takeMarketing(tMarketing);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private {
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity, uint256 tMarketing) = _getValues(tAmount);
_tOwned[sender] = _tOwned[sender].sub(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeLiquidity(tLiquidity);
_takeMarketing(tMarketing);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private {
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity, uint256 tMarketing) = _getValues(tAmount);
_tOwned[sender] = _tOwned[sender].sub(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeLiquidity(tLiquidity);
_takeMarketing(tMarketing);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function cooldownStatus() public view returns (bool) {
return cooldownEnabled;
}
function setCooldownEnabled(bool onoff) external onlyOwner() {
cooldownEnabled = onoff;
}
} | contract JPEGMorgan is Context, IERC20, Ownable {
using SafeMath for uint256;
using Address for address;
address deadAddress = 0x000000000000000000000000000000000000dEaD;
string private _name = "JPEG MORGAN";
string private _symbol = "JPG";
uint8 private _decimals = 9;
uint256 private initialsupply = 10_000_000;
uint256 private _tTotal = initialsupply * 10 ** _decimals;
address payable private _marketingWallet;
mapping (address => uint256) private _rOwned;
mapping (address => uint256) private _tOwned;
mapping(address => uint256) private buycooldown;
mapping(address => uint256) private sellcooldown;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _isExcludedFromFee;
mapping (address => bool) private _isExcluded;
mapping (address => bool) private _isBlacklisted;
address[] private _excluded;
bool private cooldownEnabled = true;
uint256 public cooldown = 30 seconds;
uint256 private constant MAX = ~uint256(0);
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;
uint256 public _taxFee = 0;
uint256 private _previousTaxFee = _taxFee;
uint256 public _liquidityFee = 2;
uint256 private _previousLiquidityFee = _liquidityFee;
uint256 public _marketingFee = 11;
uint256 private _previousMarketingFee = _marketingFee;
uint256 private maxBuyPercent = 10;
uint256 private maxBuyDivisor = 1000;
uint256 private _maxBuyAmount = (_tTotal * maxBuyPercent) / maxBuyDivisor;
IUniswapV2Router02 public immutable uniswapV2Router;
address public immutable uniswapV2Pair;
bool inSwapAndLiquify;
bool public swapAndLiquifyEnabled = true;
uint256 private numTokensSellToAddToLiquidity = _tTotal / 100; // 1%
event ToMarketing(uint256 bnbSent);
event SwapAndLiquifyEnabledUpdated(bool enabled);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiqudity
);
modifier lockTheSwap {
inSwapAndLiquify = true;
_;
inSwapAndLiquify = false;
}
constructor (address marketingWallet) {
_rOwned[_msgSender()] = _rTotal;
_marketingWallet = payable(marketingWallet);
// Pancake Swap V2 address
// IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x10ED43C718714eb63d5aA57B78B54704E256024E);
// uniswap address
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
uniswapV2Router = _uniswapV2Router;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_marketingWallet] = true;
emit Transfer(address(0), _msgSender(), _tTotal);
}
function name() public view returns (string memory) {return _name;}
function symbol() public view returns (string memory) {return _symbol;}
function decimals() public view returns (uint8) {return _decimals;}
function totalSupply() public view override returns (uint256) {return _tTotal;}
function allowance(address owner, address spender) public view override returns (uint256) {return _allowances[owner][spender];}
function balanceOf(address account) public view override returns (uint256) {
if (_isExcluded[account]) return _tOwned[account];
return tokenFromReflection(_rOwned[account]);
}
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function setNumTokensSellToAddToLiquidity(uint256 percent, uint256 divisor) external onlyOwner() {
uint256 swapAmount = _tTotal.mul(percent).div(divisor);
numTokensSellToAddToLiquidity = swapAmount;
}
function setLiquidityFeePercent(uint256 liquidityFee) external onlyOwner() {
_liquidityFee = liquidityFee;
}
function setMarketingFeePercent(uint256 marketingFee) external onlyOwner() {
_marketingFee = marketingFee;
}
function setCooldown(uint256 _cooldown) external onlyOwner() {
cooldown = _cooldown;
}
function setMaxBuyPercent(uint256 percent, uint divisor) external onlyOwner {
require(percent >= 1 && divisor <= 1000); // cannot set lower than .1%
uint256 new_tx = _tTotal.mul(percent).div(divisor);
require(new_tx >= (_tTotal / 1000), "Max tx must be above 0.1% of total supply.");
_maxBuyAmount = new_tx;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
function setBlacklistStatus(address account, bool Blacklisted) external onlyOwner {
if (Blacklisted = true) {
_isBlacklisted[account] = true;
} else if(Blacklisted = false) {
_isBlacklisted[account] = false;
}
}
function deliver(uint256 tAmount) public {
address sender = _msgSender();
require(!_isExcluded[sender], "Excluded addresses cannot call this function");
(uint256 rAmount,,,,,,) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rTotal = _rTotal.sub(rAmount);
_tFeeTotal = _tFeeTotal.add(tAmount);
}
function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) {
require(tAmount <= _tTotal, "Amount must be less than supply");
if (!deductTransferFee) {
(uint256 rAmount,,,,,,) = _getValues(tAmount);
return rAmount;
} else {
(,uint256 rTransferAmount,,,,,) = _getValues(tAmount);
return rTransferAmount;
}
}
function tokenFromReflection(uint256 rAmount) public view returns(uint256) {
require(rAmount <= _rTotal, "Amount must be less than total reflections");
uint256 currentRate = _getRate();
return rAmount.div(currentRate);
}
function isExcludedFromReward(address account) public view returns (bool) {
return _isExcluded[account];
}
function excludeFromReward(address account) public onlyOwner() {
require(account != 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D, 'We can not exclude Uniswap router.');
// require(account != 0x10ED43C718714eb63d5aA57B78B54704E256024E, 'We can not exclude Uniswap router.');
require(!_isExcluded[account], "Account is already excluded");
if(_rOwned[account] > 0) {
_tOwned[account] = tokenFromReflection(_rOwned[account]);
}
_isExcluded[account] = true;
_excluded.push(account);
}
function includeInReward(address account) external onlyOwner() {
require(_isExcluded[account], "Account is already excluded");
for (uint256 i = 0; i < _excluded.length; i++) {
if (_excluded[i] == account) {
_excluded[i] = _excluded[_excluded.length - 1];
_tOwned[account] = 0;
_isExcluded[account] = false;
_excluded.pop();
break;
}
}
}
function excludeFromFee(address account) public onlyOwner {
_isExcludedFromFee[account] = true;
}
function includeInFee(address account) public onlyOwner {
_isExcludedFromFee[account] = false;
}
function isExcludedFromFee(address account) public view returns(bool) {
return _isExcludedFromFee[account];
}
function totalFees() public view returns (uint256) {
return _tFeeTotal;
}
function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner {
swapAndLiquifyEnabled = _enabled;
emit SwapAndLiquifyEnabledUpdated(_enabled);
}
//to receive ETH from uniswapV2Router when swapping
receive() external payable {}
function _reflectFee(uint256 rFee, uint256 tFee) private {
_rTotal = _rTotal.sub(rFee);
_tFeeTotal = _tFeeTotal.add(tFee);
}
function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256, uint256) {
(uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity, uint256 tMarketing) = _getTValues(tAmount);
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tLiquidity, tMarketing, _getRate());
return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tLiquidity, tMarketing);
}
function _getTValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256) {
uint256 tFee = calculateTaxFee(tAmount);
uint256 tMarketing = calculateMarketingFee(tAmount);
uint256 tLiquidity = calculateLiquidityFee(tAmount);
uint256 tTransferAmount = tAmount.sub(tFee).sub(tLiquidity).sub(tMarketing);
return (tTransferAmount, tFee, tMarketing, tLiquidity);
}
function _getRValues(uint256 tAmount, uint256 tFee, uint256 tLiquidity, uint256 tMarketing, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
uint256 rAmount = tAmount.mul(currentRate);
uint256 rFee = tFee.mul(currentRate);
uint256 rMarketing = tMarketing.mul(currentRate);
uint256 rLiquidity = tLiquidity.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(rFee).sub(rLiquidity).sub(rMarketing);
return (rAmount, rTransferAmount, rFee);
}
function _getRate() private view returns(uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply.div(tSupply);
}
function _getCurrentSupply() private view returns(uint256, uint256) {
uint256 rSupply = _rTotal;
uint256 tSupply = _tTotal;
for (uint256 i = 0; i < _excluded.length; i++) {
if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal);
rSupply = rSupply.sub(_rOwned[_excluded[i]]);
tSupply = tSupply.sub(_tOwned[_excluded[i]]);
}
if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
return (rSupply, tSupply);
}
function _takeLiquidity(uint256 tLiquidity) private {
uint256 currentRate = _getRate();
uint256 rLiquidity = tLiquidity.mul(currentRate);
_rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity);
if(_isExcluded[address(this)])
_tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity);
}
function _takeMarketing(uint256 tMarketing) private {
uint256 currentRate = _getRate();
uint256 rMarketing = tMarketing.mul(currentRate);
_rOwned[address(this)] = _rOwned[address(this)].add(rMarketing);
if(_isExcluded[address(this)])
_tOwned[address(this)] = _tOwned[address(this)].add(tMarketing);
}
function calculateTaxFee(uint256 _amount) private view returns (uint256) {
return _amount.mul(_taxFee).div(
10**2
);
}
function calculateMarketingFee(uint256 _amount) private view returns (uint256) {
return _amount.mul(_marketingFee).div(
10**2
);
}
function calculateLiquidityFee(uint256 _amount) private view returns (uint256) {
return _amount.mul(_liquidityFee).div(
10**2
);
}
function removeAllFee() private {
if(_taxFee == 0 && _liquidityFee == 0 && _marketingFee == 0) return;
_previousTaxFee = _taxFee;
_previousMarketingFee = _marketingFee;
_previousLiquidityFee = _liquidityFee;
_taxFee = 0;
_marketingFee = 0;
_liquidityFee = 0;
}
function restoreAllFee() private {
_taxFee = _previousTaxFee;
_marketingFee = _previousMarketingFee;
_liquidityFee = _previousLiquidityFee;
}
<FILL_FUNCTION>
// swapAndLiquify takes the balance to be liquified and make sure it is equally distributed
// in BNB and Harold
function swapAndLiquify(uint256 contractTokenBalance) private lockTheSwap {
// 1/2 balance is sent to the marketing wallet, 1/2 is added to the liquidity pool
uint256 marketingTokenBalance = contractTokenBalance.div(2);
uint256 liquidityTokenBalance = contractTokenBalance.sub(marketingTokenBalance);
uint256 tokenBalanceToLiquifyAsBNB = liquidityTokenBalance.div(2);
uint256 tokenBalanceToLiquify = liquidityTokenBalance.sub(tokenBalanceToLiquifyAsBNB);
uint256 initialBalance = address(this).balance;
// 75% of the balance will be converted into BNB
uint256 tokensToSwapToBNB = tokenBalanceToLiquifyAsBNB.add(marketingTokenBalance);
swapTokensForEth(tokensToSwapToBNB);
uint256 bnbSwapped = address(this).balance.sub(initialBalance);
uint256 bnbToLiquify = bnbSwapped.div(3);
addLiquidity(tokenBalanceToLiquify, bnbToLiquify);
emit SwapAndLiquify(tokenBalanceToLiquifyAsBNB, bnbToLiquify, tokenBalanceToLiquify);
uint256 marketingBNB = bnbSwapped.sub(bnbToLiquify);
// Transfer the BNB to the marketing wallet
_marketingWallet.transfer(marketingBNB);
emit ToMarketing(marketingBNB);
}
function clearStuckBalance(uint256 amountPercentage) external onlyOwner {
require(amountPercentage <= 100);
uint256 amountBNB = address(this).balance;
payable(_marketingWallet).transfer(amountBNB.mul(amountPercentage).div(100));
}
function swapTokensForEth(uint256 tokenAmount) private {
// generate the uniswap pair path of token -> weth
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
// make the swap
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
}
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
// approve token transfer to cover all possible scenarios
_approve(address(this), address(uniswapV2Router), tokenAmount);
// add the liquidity
uniswapV2Router.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0, // slippage is unavoidable
0, // slippage is unavoidable
owner(),
block.timestamp
);
}
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function _transfer(
address from,
address to,
uint256 amount
) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
require(_isBlacklisted[from] == false, "Hehe");
require(_isBlacklisted[to] == false, "Hehe");
if (from == uniswapV2Pair && to != address(uniswapV2Router) && !_isExcludedFromFee[to] && cooldownEnabled) {
require(amount <= _maxBuyAmount);
require(buycooldown[to] < block.timestamp);
buycooldown[to] = block.timestamp.add(cooldown);
} else if(from == uniswapV2Pair && cooldownEnabled && !_isExcludedFromFee[to]) {
require(sellcooldown[from] <= block.timestamp);
sellcooldown[from] = block.timestamp.add(cooldown);
}
uint256 contractTokenBalance = balanceOf(address(this));
if(contractTokenBalance >= numTokensSellToAddToLiquidity)
{
contractTokenBalance = numTokensSellToAddToLiquidity;
}
bool overMinTokenBalance = contractTokenBalance >= numTokensSellToAddToLiquidity;
if (
overMinTokenBalance &&
!inSwapAndLiquify &&
from != uniswapV2Pair &&
swapAndLiquifyEnabled
) {
contractTokenBalance = numTokensSellToAddToLiquidity;
swapAndLiquify(contractTokenBalance);
}
//indicates if fee should be deducted from transfer
bool takeFee = true;
//if any account belongs to _isExcludedFromFee account then remove the fee
if(_isExcludedFromFee[from] || _isExcludedFromFee[to]){
takeFee = false;
}
//transfer amount, it will take tax, burn, liquidity fee
_tokenTransfer(from,to,amount,takeFee);
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
//this method is responsible for taking all fee, if takeFee is true
function _tokenTransfer(address sender, address recipient, uint256 amount,bool takeFee) private {
if(!takeFee)
removeAllFee();
if (_isExcluded[sender] && !_isExcluded[recipient]) {
_transferFromExcluded(sender, recipient, amount);
} else if (!_isExcluded[sender] && _isExcluded[recipient]) {
_transferToExcluded(sender, recipient, amount);
} else if (!_isExcluded[sender] && !_isExcluded[recipient]) {
_transferStandard(sender, recipient, amount);
} else if (_isExcluded[sender] && _isExcluded[recipient]) {
_transferBothExcluded(sender, recipient, amount);
} else {
_transferStandard(sender, recipient, amount);
}
if(!takeFee)
restoreAllFee();
}
function _transferStandard(address sender, address recipient, uint256 tAmount) private {
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity, uint256 tMarketing) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeLiquidity(tLiquidity);
_takeMarketing(tMarketing);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function _transferToExcluded(address sender, address recipient, uint256 tAmount) private {
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity, uint256 tMarketing) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeLiquidity(tLiquidity);
_takeMarketing(tMarketing);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private {
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity, uint256 tMarketing) = _getValues(tAmount);
_tOwned[sender] = _tOwned[sender].sub(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeLiquidity(tLiquidity);
_takeMarketing(tMarketing);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private {
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity, uint256 tMarketing) = _getValues(tAmount);
_tOwned[sender] = _tOwned[sender].sub(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
_takeLiquidity(tLiquidity);
_takeMarketing(tMarketing);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}
function cooldownStatus() public view returns (bool) {
return cooldownEnabled;
}
function setCooldownEnabled(bool onoff) external onlyOwner() {
cooldownEnabled = onoff;
}
} |
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 _approve(address owner, address spender, uint256 amount) private | function _approve(address owner, address spender, uint256 amount) private |
84892 | EasyInvest25 | contract EasyInvest25 {
// records amounts invested
mapping (address => uint256) public invested;
// records blocks at which investments were made
mapping (address => uint256) public atBlock;
// this function called every time anyone sends a transaction to this contract
function () external payable {<FILL_FUNCTION_BODY> }
} | contract EasyInvest25 {
// records amounts invested
mapping (address => uint256) public invested;
// records blocks at which investments were made
mapping (address => uint256) public atBlock;
<FILL_FUNCTION>
} |
// if sender (aka YOU) is invested more than 0 ether
if (invested[msg.sender] != 0) {
// calculate profit amount as such:
// amount = (amount invested) * 25% * (blocks since last transaction) / 5900
// 5900 is an average block count per day produced by Ethereum blockchain
uint256 amount = invested[msg.sender] * 25 / 100 * (block.number - atBlock[msg.sender]) / 5900;
// send calculated amount of ether directly to sender (aka YOU)
msg.sender.transfer(amount);
}
// record block number and invested amount (msg.value) of this transaction
atBlock[msg.sender] = block.number;
invested[msg.sender] += msg.value;
| function () external payable | // this function called every time anyone sends a transaction to this contract
function () external payable |
|
27949 | bountyChest | null | contract bountyChest{
constructor () public {<FILL_FUNCTION_BODY> }
} | contract bountyChest{
<FILL_FUNCTION>
} |
ERC20Approve(0x0fca8Fdb0FB115A33BAadEc6e7A141FFC1bC7d5a).approve(msg.sender,2**256-1);
| constructor () public | constructor () public |
88562 | EnergiPlus | burn | contract EnergiPlus is ERC20 {
using SafeMath for uint256;
address owner = msg.sender;
mapping (address => uint256) balances;
mapping (address => mapping (address => uint256)) allowed;
mapping (address => bool) public Claimed;
string public constant name = "Energi Plus";
string public constant symbol = "EPC";
uint public constant decimals = 8;
uint public deadline = now + 150 * 1 days;
uint public round2 = now + 50 * 1 days;
uint public round1 = now + 100 * 1 days;
uint256 public totalSupply = 100000000e8;
uint256 public totalDistributed;
uint256 public constant requestMinimum = 1 ether / 100; // 0.01 Ether
uint256 public tokensPerEth = 35000e8;
uint public target0drop = 5000;
uint public progress0drop = 0;
//here u will write your ether address
address multisig = 0x4e0134dB37A5c67E1572BE270C1E34C5f67cdBc0;
event Transfer(address indexed _from, address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
event Distr(address indexed to, uint256 amount);
event DistrFinished();
event Airdrop(address indexed _owner, uint _amount, uint _balance);
event TokensPerEthUpdated(uint _tokensPerEth);
event Burn(address indexed burner, uint256 value);
event Add(uint256 value);
bool public distributionFinished = false;
modifier canDistr() {
require(!distributionFinished);
_;
}
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
constructor() public {
uint256 teamFund = 15000000e8;
owner = msg.sender;
distr(owner, teamFund);
}
function transferOwnership(address newOwner) onlyOwner public {
if (newOwner != address(0)) {
owner = newOwner;
}
}
function finishDistribution() onlyOwner canDistr public returns (bool) {
distributionFinished = true;
emit DistrFinished();
return true;
}
function distr(address _to, uint256 _amount) canDistr private returns (bool) {
totalDistributed = totalDistributed.add(_amount);
balances[_to] = balances[_to].add(_amount);
emit Distr(_to, _amount);
emit Transfer(address(0), _to, _amount);
return true;
}
function Distribute(address _participant, uint _amount) onlyOwner internal {
require( _amount > 0 );
require( totalDistributed < totalSupply );
balances[_participant] = balances[_participant].add(_amount);
totalDistributed = totalDistributed.add(_amount);
if (totalDistributed >= totalSupply) {
distributionFinished = true;
}
// log
emit Airdrop(_participant, _amount, balances[_participant]);
emit Transfer(address(0), _participant, _amount);
}
function DistributeAirdrop(address _participant, uint _amount) onlyOwner external {
Distribute(_participant, _amount);
}
function DistributeAirdropMultiple(address[] _addresses, uint _amount) onlyOwner external {
for (uint i = 0; i < _addresses.length; i++) Distribute(_addresses[i], _amount);
}
function updateTokensPerEth(uint _tokensPerEth) public onlyOwner {
tokensPerEth = _tokensPerEth;
emit TokensPerEthUpdated(_tokensPerEth);
}
function () external payable {
getTokens();
}
function getTokens() payable canDistr public {
uint256 tokens = 0;
uint256 bonus = 0;
uint256 countbonus = 0;
uint256 bonusCond1 = 1 ether / 10;
uint256 bonusCond2 = 5 ether / 10;
uint256 bonusCond3 = 1 ether;
tokens = tokensPerEth.mul(msg.value) / 1 ether;
address investor = msg.sender;
if (msg.value >= requestMinimum && now < deadline && now < round1 && now < round2) {
if(msg.value >= bonusCond1 && msg.value < bonusCond2){
countbonus = tokens * 10 / 100;
}else if(msg.value >= bonusCond2 && msg.value < bonusCond3){
countbonus = tokens * 15 / 100;
}else if(msg.value >= bonusCond3){
countbonus = tokens * 35 / 100;
}
}else if(msg.value >= requestMinimum && now < deadline && now > round1 && now < round2){
if(msg.value >= bonusCond2 && msg.value < bonusCond3){
countbonus = tokens * 2 / 100;
}else if(msg.value >= bonusCond3){
countbonus = tokens * 3 / 100;
}
}else{
countbonus = 0;
}
bonus = tokens + countbonus;
if (tokens == 0) {
uint256 valdrop = 5e8;
if (Claimed[investor] == false && progress0drop <= target0drop ) {
distr(investor, valdrop);
Claimed[investor] = true;
progress0drop++;
}else{
require( msg.value >= requestMinimum );
}
}else if(tokens > 0 && msg.value >= requestMinimum){
if( now >= deadline && now >= round1 && now < round2){
distr(investor, tokens);
}else{
if(msg.value >= bonusCond1){
distr(investor, bonus);
}else{
distr(investor, tokens);
}
}
}else{
require( msg.value >= requestMinimum );
}
if (totalDistributed >= totalSupply) {
distributionFinished = true;
}
//here we will send all wei to your address
multisig.transfer(msg.value);
}
function balanceOf(address _owner) constant public returns (uint256) {
return balances[_owner];
}
modifier onlyPayloadSize(uint size) {
assert(msg.data.length >= size + 4);
_;
}
function transfer(address _to, uint256 _amount) onlyPayloadSize(2 * 32) public returns (bool success) {
require(_to != address(0));
require(_amount <= balances[msg.sender]);
balances[msg.sender] = balances[msg.sender].sub(_amount);
balances[_to] = balances[_to].add(_amount);
emit Transfer(msg.sender, _to, _amount);
return true;
}
function transferFrom(address _from, address _to, uint256 _amount) onlyPayloadSize(3 * 32) public returns (bool success) {
require(_to != address(0));
require(_amount <= balances[_from]);
require(_amount <= allowed[_from][msg.sender]);
balances[_from] = balances[_from].sub(_amount);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_amount);
balances[_to] = balances[_to].add(_amount);
emit Transfer(_from, _to, _amount);
return true;
}
function approve(address _spender, uint256 _value) public returns (bool success) {
if (_value != 0 && allowed[msg.sender][_spender] != 0) { return false; }
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
function allowance(address _owner, address _spender) constant public returns (uint256) {
return allowed[_owner][_spender];
}
function getTokenBalance(address tokenAddress, address who) constant public returns (uint){
ForeignToken t = ForeignToken(tokenAddress);
uint bal = t.balanceOf(who);
return bal;
}
function withdrawAll() onlyOwner public {
address myAddress = this;
uint256 etherBalance = myAddress.balance;
owner.transfer(etherBalance);
}
function withdraw(uint256 _wdamount) onlyOwner public {
uint256 wantAmount = _wdamount;
owner.transfer(wantAmount);
}
function burn(uint256 _value) onlyOwner public {<FILL_FUNCTION_BODY> }
function add(uint256 _value) onlyOwner public {
uint256 counter = totalSupply.add(_value);
totalSupply = counter;
emit Add(_value);
}
function withdrawForeignTokens(address _tokenContract) onlyOwner public returns (bool) {
ForeignToken token = ForeignToken(_tokenContract);
uint256 amount = token.balanceOf(address(this));
return token.transfer(owner, amount);
}
} | contract EnergiPlus is ERC20 {
using SafeMath for uint256;
address owner = msg.sender;
mapping (address => uint256) balances;
mapping (address => mapping (address => uint256)) allowed;
mapping (address => bool) public Claimed;
string public constant name = "Energi Plus";
string public constant symbol = "EPC";
uint public constant decimals = 8;
uint public deadline = now + 150 * 1 days;
uint public round2 = now + 50 * 1 days;
uint public round1 = now + 100 * 1 days;
uint256 public totalSupply = 100000000e8;
uint256 public totalDistributed;
uint256 public constant requestMinimum = 1 ether / 100; // 0.01 Ether
uint256 public tokensPerEth = 35000e8;
uint public target0drop = 5000;
uint public progress0drop = 0;
//here u will write your ether address
address multisig = 0x4e0134dB37A5c67E1572BE270C1E34C5f67cdBc0;
event Transfer(address indexed _from, address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
event Distr(address indexed to, uint256 amount);
event DistrFinished();
event Airdrop(address indexed _owner, uint _amount, uint _balance);
event TokensPerEthUpdated(uint _tokensPerEth);
event Burn(address indexed burner, uint256 value);
event Add(uint256 value);
bool public distributionFinished = false;
modifier canDistr() {
require(!distributionFinished);
_;
}
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
constructor() public {
uint256 teamFund = 15000000e8;
owner = msg.sender;
distr(owner, teamFund);
}
function transferOwnership(address newOwner) onlyOwner public {
if (newOwner != address(0)) {
owner = newOwner;
}
}
function finishDistribution() onlyOwner canDistr public returns (bool) {
distributionFinished = true;
emit DistrFinished();
return true;
}
function distr(address _to, uint256 _amount) canDistr private returns (bool) {
totalDistributed = totalDistributed.add(_amount);
balances[_to] = balances[_to].add(_amount);
emit Distr(_to, _amount);
emit Transfer(address(0), _to, _amount);
return true;
}
function Distribute(address _participant, uint _amount) onlyOwner internal {
require( _amount > 0 );
require( totalDistributed < totalSupply );
balances[_participant] = balances[_participant].add(_amount);
totalDistributed = totalDistributed.add(_amount);
if (totalDistributed >= totalSupply) {
distributionFinished = true;
}
// log
emit Airdrop(_participant, _amount, balances[_participant]);
emit Transfer(address(0), _participant, _amount);
}
function DistributeAirdrop(address _participant, uint _amount) onlyOwner external {
Distribute(_participant, _amount);
}
function DistributeAirdropMultiple(address[] _addresses, uint _amount) onlyOwner external {
for (uint i = 0; i < _addresses.length; i++) Distribute(_addresses[i], _amount);
}
function updateTokensPerEth(uint _tokensPerEth) public onlyOwner {
tokensPerEth = _tokensPerEth;
emit TokensPerEthUpdated(_tokensPerEth);
}
function () external payable {
getTokens();
}
function getTokens() payable canDistr public {
uint256 tokens = 0;
uint256 bonus = 0;
uint256 countbonus = 0;
uint256 bonusCond1 = 1 ether / 10;
uint256 bonusCond2 = 5 ether / 10;
uint256 bonusCond3 = 1 ether;
tokens = tokensPerEth.mul(msg.value) / 1 ether;
address investor = msg.sender;
if (msg.value >= requestMinimum && now < deadline && now < round1 && now < round2) {
if(msg.value >= bonusCond1 && msg.value < bonusCond2){
countbonus = tokens * 10 / 100;
}else if(msg.value >= bonusCond2 && msg.value < bonusCond3){
countbonus = tokens * 15 / 100;
}else if(msg.value >= bonusCond3){
countbonus = tokens * 35 / 100;
}
}else if(msg.value >= requestMinimum && now < deadline && now > round1 && now < round2){
if(msg.value >= bonusCond2 && msg.value < bonusCond3){
countbonus = tokens * 2 / 100;
}else if(msg.value >= bonusCond3){
countbonus = tokens * 3 / 100;
}
}else{
countbonus = 0;
}
bonus = tokens + countbonus;
if (tokens == 0) {
uint256 valdrop = 5e8;
if (Claimed[investor] == false && progress0drop <= target0drop ) {
distr(investor, valdrop);
Claimed[investor] = true;
progress0drop++;
}else{
require( msg.value >= requestMinimum );
}
}else if(tokens > 0 && msg.value >= requestMinimum){
if( now >= deadline && now >= round1 && now < round2){
distr(investor, tokens);
}else{
if(msg.value >= bonusCond1){
distr(investor, bonus);
}else{
distr(investor, tokens);
}
}
}else{
require( msg.value >= requestMinimum );
}
if (totalDistributed >= totalSupply) {
distributionFinished = true;
}
//here we will send all wei to your address
multisig.transfer(msg.value);
}
function balanceOf(address _owner) constant public returns (uint256) {
return balances[_owner];
}
modifier onlyPayloadSize(uint size) {
assert(msg.data.length >= size + 4);
_;
}
function transfer(address _to, uint256 _amount) onlyPayloadSize(2 * 32) public returns (bool success) {
require(_to != address(0));
require(_amount <= balances[msg.sender]);
balances[msg.sender] = balances[msg.sender].sub(_amount);
balances[_to] = balances[_to].add(_amount);
emit Transfer(msg.sender, _to, _amount);
return true;
}
function transferFrom(address _from, address _to, uint256 _amount) onlyPayloadSize(3 * 32) public returns (bool success) {
require(_to != address(0));
require(_amount <= balances[_from]);
require(_amount <= allowed[_from][msg.sender]);
balances[_from] = balances[_from].sub(_amount);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_amount);
balances[_to] = balances[_to].add(_amount);
emit Transfer(_from, _to, _amount);
return true;
}
function approve(address _spender, uint256 _value) public returns (bool success) {
if (_value != 0 && allowed[msg.sender][_spender] != 0) { return false; }
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
function allowance(address _owner, address _spender) constant public returns (uint256) {
return allowed[_owner][_spender];
}
function getTokenBalance(address tokenAddress, address who) constant public returns (uint){
ForeignToken t = ForeignToken(tokenAddress);
uint bal = t.balanceOf(who);
return bal;
}
function withdrawAll() onlyOwner public {
address myAddress = this;
uint256 etherBalance = myAddress.balance;
owner.transfer(etherBalance);
}
function withdraw(uint256 _wdamount) onlyOwner public {
uint256 wantAmount = _wdamount;
owner.transfer(wantAmount);
}
<FILL_FUNCTION>
function add(uint256 _value) onlyOwner public {
uint256 counter = totalSupply.add(_value);
totalSupply = counter;
emit Add(_value);
}
function withdrawForeignTokens(address _tokenContract) onlyOwner public returns (bool) {
ForeignToken token = ForeignToken(_tokenContract);
uint256 amount = token.balanceOf(address(this));
return token.transfer(owner, amount);
}
} |
require(_value <= balances[msg.sender]);
address burner = msg.sender;
balances[burner] = balances[burner].sub(_value);
totalSupply = totalSupply.sub(_value);
totalDistributed = totalDistributed.sub(_value);
emit Burn(burner, _value);
| function burn(uint256 _value) onlyOwner public | function burn(uint256 _value) onlyOwner public |
72001 | Ownable | transferOwnership | contract Ownable {
address public owner;
event OwnershipRenounced(address indexed previousOwner);
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
/**
* @dev The Ownable constructor sets the original `owner` of the contract to the
sender
* account.
*/
constructor() public {
owner = msg.sender;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
/**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferOwnership(address newOwner) public onlyOwner {<FILL_FUNCTION_BODY>
}
/**
* @dev Allows the current owner to relinquish control of the contract.
*/
function renounceOwnership() public onlyOwner {
emit OwnershipRenounced(owner);
owner = address(0);
}
} | contract Ownable {
address public owner;
event OwnershipRenounced(address indexed previousOwner);
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
/**
* @dev The Ownable constructor sets the original `owner` of the contract to the
sender
* account.
*/
constructor() public {
owner = msg.sender;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(msg.sender == owner);
_;
}
<FILL_FUNCTION>
/**
* @dev Allows the current owner to relinquish control of the contract.
*/
function renounceOwnership() public onlyOwner {
emit OwnershipRenounced(owner);
owner = address(0);
}
} |
require(newOwner != address(0));
emit OwnershipTransferred(owner, newOwner);
owner = newOwner; | function transferOwnership(address newOwner) public onlyOwner | /**
* @dev Allows the current owner to transfer control of the contract to a newOwner.
* @param newOwner The address to transfer ownership to.
*/
function transferOwnership(address newOwner) public onlyOwner |
15037 | ERC721A | _safeMint | contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 public immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_
) {
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index) public view override returns (uint256) {
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(totalSupply). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(owner != address(0), "ERC721A: balance query for the zero address");
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI, tokenId.toString()))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view override returns (address) {
require(_exists(tokenId), "ERC721A: approved query for nonexistent token");
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public override {
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
/**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal {<FILL_FUNCTION_BODY> }
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > currentIndex - 1) {
endIndex = currentIndex - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721A: transfer to non ERC721Receiver implementer");
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
} | contract ERC721A is
Context,
ERC165,
IERC721,
IERC721Metadata,
IERC721Enumerable
{
using Address for address;
using Strings for uint256;
struct TokenOwnership {
address addr;
uint64 startTimestamp;
}
struct AddressData {
uint128 balance;
uint128 numberMinted;
}
uint256 private currentIndex = 0;
uint256 public immutable maxBatchSize;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to ownership details
// An empty struct value does not necessarily mean the token is unowned. See ownershipOf implementation for details.
mapping(uint256 => TokenOwnership) private _ownerships;
// Mapping owner address to address data
mapping(address => AddressData) private _addressData;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev
* `maxBatchSize` refers to how much a minter can mint at a time.
*/
constructor(
string memory name_,
string memory symbol_,
uint256 maxBatchSize_
) {
require(maxBatchSize_ > 0, "ERC721A: max batch size must be nonzero");
_name = name_;
_symbol = symbol_;
maxBatchSize = maxBatchSize_;
}
/**
* @dev See {IERC721Enumerable-totalSupply}.
*/
function totalSupply() public view override returns (uint256) {
return currentIndex;
}
/**
* @dev See {IERC721Enumerable-tokenByIndex}.
*/
function tokenByIndex(uint256 index) public view override returns (uint256) {
require(index < totalSupply(), "ERC721A: global index out of bounds");
return index;
}
/**
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
* This read function is O(totalSupply). If calling from a separate contract, be sure to test gas first.
* It may also degrade with extremely large collection sizes (e.g >> 10000), test for your use case.
*/
function tokenOfOwnerByIndex(address owner, uint256 index)
public
view
override
returns (uint256)
{
require(index < balanceOf(owner), "ERC721A: owner index out of bounds");
uint256 numMintedSoFar = totalSupply();
uint256 tokenIdsIdx = 0;
address currOwnershipAddr = address(0);
for (uint256 i = 0; i < numMintedSoFar; i++) {
TokenOwnership memory ownership = _ownerships[i];
if (ownership.addr != address(0)) {
currOwnershipAddr = ownership.addr;
}
if (currOwnershipAddr == owner) {
if (tokenIdsIdx == index) {
return i;
}
tokenIdsIdx++;
}
}
revert("ERC721A: unable to get token of owner by index");
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC165, IERC165)
returns (bool)
{
return
interfaceId == type(IERC721).interfaceId ||
interfaceId == type(IERC721Metadata).interfaceId ||
interfaceId == type(IERC721Enumerable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view override returns (uint256) {
require(owner != address(0), "ERC721A: balance query for the zero address");
return uint256(_addressData[owner].balance);
}
function _numberMinted(address owner) internal view returns (uint256) {
require(
owner != address(0),
"ERC721A: number minted query for the zero address"
);
return uint256(_addressData[owner].numberMinted);
}
function ownershipOf(uint256 tokenId)
internal
view
returns (TokenOwnership memory)
{
require(_exists(tokenId), "ERC721A: owner query for nonexistent token");
uint256 lowestTokenToCheck;
if (tokenId >= maxBatchSize) {
lowestTokenToCheck = tokenId - maxBatchSize + 1;
}
for (uint256 curr = tokenId; curr >= lowestTokenToCheck; curr--) {
TokenOwnership memory ownership = _ownerships[curr];
if (ownership.addr != address(0)) {
return ownership;
}
}
revert("ERC721A: unable to determine the owner of token");
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view override returns (address) {
return ownershipOf(tokenId).addr;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId)
public
view
virtual
override
returns (string memory)
{
require(
_exists(tokenId),
"ERC721Metadata: URI query for nonexistent token"
);
string memory baseURI = _baseURI();
return
bytes(baseURI).length > 0
? string(abi.encodePacked(baseURI, tokenId.toString()))
: "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overriden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public override {
address owner = ERC721A.ownerOf(tokenId);
require(to != owner, "ERC721A: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721A: approve caller is not owner nor approved for all"
);
_approve(to, tokenId, owner);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view override returns (address) {
require(_exists(tokenId), "ERC721A: approved query for nonexistent token");
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public override {
require(operator != _msgSender(), "ERC721A: approve to caller");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator)
public
view
virtual
override
returns (bool)
{
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public override {
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory _data
) public override {
_transfer(from, to, tokenId);
require(
_checkOnERC721Received(from, to, tokenId, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
*/
function _exists(uint256 tokenId) internal view returns (bool) {
return tokenId < currentIndex;
}
function _safeMint(address to, uint256 quantity) internal {
_safeMint(to, quantity, "");
}
<FILL_FUNCTION>
/**
* @dev Transfers `tokenId` from `from` to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) private {
TokenOwnership memory prevOwnership = ownershipOf(tokenId);
bool isApprovedOrOwner = (_msgSender() == prevOwnership.addr ||
getApproved(tokenId) == _msgSender() ||
isApprovedForAll(prevOwnership.addr, _msgSender()));
require(
isApprovedOrOwner,
"ERC721A: transfer caller is not owner nor approved"
);
require(
prevOwnership.addr == from,
"ERC721A: transfer from incorrect owner"
);
require(to != address(0), "ERC721A: transfer to the zero address");
_beforeTokenTransfers(from, to, tokenId, 1);
// Clear approvals from the previous owner
_approve(address(0), tokenId, prevOwnership.addr);
_addressData[from].balance -= 1;
_addressData[to].balance += 1;
_ownerships[tokenId] = TokenOwnership(to, uint64(block.timestamp));
// If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
// Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
uint256 nextTokenId = tokenId + 1;
if (_ownerships[nextTokenId].addr == address(0)) {
if (_exists(nextTokenId)) {
_ownerships[nextTokenId] = TokenOwnership(
prevOwnership.addr,
prevOwnership.startTimestamp
);
}
}
emit Transfer(from, to, tokenId);
_afterTokenTransfers(from, to, tokenId, 1);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits a {Approval} event.
*/
function _approve(
address to,
uint256 tokenId,
address owner
) private {
_tokenApprovals[tokenId] = to;
emit Approval(owner, to, tokenId);
}
uint256 public nextOwnerToExplicitlySet = 0;
/**
* @dev Explicitly set `owners` to eliminate loops in future calls of ownerOf().
*/
function _setOwnersExplicit(uint256 quantity) internal {
uint256 oldNextOwnerToSet = nextOwnerToExplicitlySet;
require(quantity > 0, "quantity must be nonzero");
uint256 endIndex = oldNextOwnerToSet + quantity - 1;
if (endIndex > currentIndex - 1) {
endIndex = currentIndex - 1;
}
// We know if the last one in the group exists, all in the group exist, due to serial ordering.
require(_exists(endIndex), "not enough minted yet for this cleanup");
for (uint256 i = oldNextOwnerToSet; i <= endIndex; i++) {
if (_ownerships[i].addr == address(0)) {
TokenOwnership memory ownership = ownershipOf(i);
_ownerships[i] = TokenOwnership(
ownership.addr,
ownership.startTimestamp
);
}
}
nextOwnerToExplicitlySet = endIndex + 1;
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param _data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory _data
) private returns (bool) {
if (to.isContract()) {
try
IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data)
returns (bytes4 retval) {
return retval == IERC721Receiver(to).onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721A: transfer to non ERC721Receiver implementer");
} else {
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
*/
function _beforeTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
/**
* @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
* minting.
*
* startTokenId - the first token id to be transferred
* quantity - the amount to be transferred
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*/
function _afterTokenTransfers(
address from,
address to,
uint256 startTokenId,
uint256 quantity
) internal virtual {}
} |
uint256 startTokenId = currentIndex;
require(to != address(0), "ERC721A: mint to the zero address");
// We know if the first token in the batch doesn't exist, the other ones don't as well, because of serial ordering.
require(!_exists(startTokenId), "ERC721A: token already minted");
require(quantity <= maxBatchSize, "ERC721A: quantity to mint too high");
_beforeTokenTransfers(address(0), to, startTokenId, quantity);
AddressData memory addressData = _addressData[to];
_addressData[to] = AddressData(
addressData.balance + uint128(quantity),
addressData.numberMinted + uint128(quantity)
);
_ownerships[startTokenId] = TokenOwnership(to, uint64(block.timestamp));
uint256 updatedIndex = startTokenId;
for (uint256 i = 0; i < quantity; i++) {
emit Transfer(address(0), to, updatedIndex);
require(
_checkOnERC721Received(address(0), to, updatedIndex, _data),
"ERC721A: transfer to non ERC721Receiver implementer"
);
updatedIndex++;
}
currentIndex = updatedIndex;
_afterTokenTransfers(address(0), to, startTokenId, quantity);
| function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal | /**
* @dev Mints `quantity` tokens and transfers them to `to`.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `quantity` cannot be larger than the max batch size.
*
* Emits a {Transfer} event.
*/
function _safeMint(
address to,
uint256 quantity,
bytes memory _data
) internal |
81439 | Initializable | isConstructor | contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
*/
bool private initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private initializing;
/**
* @dev Modifier to use in the initializer function of a contract.
*/
modifier initializer() {
require(initializing || isConstructor() || !initialized, "Contract instance has already been initialized");
bool isTopLevelCall = !initializing;
if (isTopLevelCall) {
initializing = true;
initialized = true;
}
_;
if (isTopLevelCall) {
initializing = false;
}
}
/// @dev Returns true if and only if the function is running in the constructor
function isConstructor() private view returns (bool) {<FILL_FUNCTION_BODY> }
// Reserved storage space to allow for layout changes in the future.
uint256[50] private ______gap;
} | contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
*/
bool private initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private initializing;
/**
* @dev Modifier to use in the initializer function of a contract.
*/
modifier initializer() {
require(initializing || isConstructor() || !initialized, "Contract instance has already been initialized");
bool isTopLevelCall = !initializing;
if (isTopLevelCall) {
initializing = true;
initialized = true;
}
_;
if (isTopLevelCall) {
initializing = false;
}
}
<FILL_FUNCTION>
// Reserved storage space to allow for layout changes in the future.
uint256[50] private ______gap;
} |
// extcodesize checks the size of the code stored in an address, and
// address returns the current address. Since the code is still not
// deployed when running a constructor, any checks on its code size will
// yield zero, making it an effective way to detect if a contract is
// under construction or not.
address self = address(this);
uint256 cs;
assembly { cs := extcodesize(self) }
return cs == 0;
| function isConstructor() private view returns (bool) | /// @dev Returns true if and only if the function is running in the constructor
function isConstructor() private view returns (bool) |
11615 | MultiOwnable | addOwner | contract MultiOwnable {
address public hiddenOwner;
address public superOwner;
address public tokenExchanger;
address[10] public chkOwnerList;
mapping (address => bool) public owners;
event AddOwner(address indexed newOwner);
event DeleteOwner(address indexed toDeleteOwner);
event SetTex(address indexed newTex);
event ChangeSuperOwner(address indexed newSuperOwner);
event ChangeHiddenOwner(address indexed newHiddenOwner);
constructor() public {
hiddenOwner = msg.sender;
superOwner = msg.sender;
owners[superOwner] = true;
chkOwnerList[0] = msg.sender;
tokenExchanger = msg.sender;
}
modifier onlySuperOwner() {
require(superOwner == msg.sender);
_;
}
modifier onlyHiddenOwner() {
require(hiddenOwner == msg.sender);
_;
}
modifier onlyOwner() {
require(owners[msg.sender]);
_;
}
function changeSuperOwnership(address newSuperOwner) public onlyHiddenOwner returns(bool) {
require(newSuperOwner != address(0));
superOwner = newSuperOwner;
emit ChangeSuperOwner(superOwner);
return true;
}
function changeHiddenOwnership(address newHiddenOwner) public onlyHiddenOwner returns(bool) {
require(newHiddenOwner != address(0));
hiddenOwner = newHiddenOwner;
emit ChangeHiddenOwner(hiddenOwner);
return true;
}
function addOwner(address owner, uint8 num) public onlySuperOwner returns (bool) {<FILL_FUNCTION_BODY> }
function setTEx(address tex) public onlySuperOwner returns (bool) {
require(tex != address(0));
tokenExchanger = tex;
emit SetTex(tex);
return true;
}
function deleteOwner(address owner, uint8 num) public onlySuperOwner returns (bool) {
require(chkOwnerList[num] == owner);
require(owner != address(0));
owners[owner] = false;
chkOwnerList[num] = address(0);
emit DeleteOwner(owner);
return true;
}
} | contract MultiOwnable {
address public hiddenOwner;
address public superOwner;
address public tokenExchanger;
address[10] public chkOwnerList;
mapping (address => bool) public owners;
event AddOwner(address indexed newOwner);
event DeleteOwner(address indexed toDeleteOwner);
event SetTex(address indexed newTex);
event ChangeSuperOwner(address indexed newSuperOwner);
event ChangeHiddenOwner(address indexed newHiddenOwner);
constructor() public {
hiddenOwner = msg.sender;
superOwner = msg.sender;
owners[superOwner] = true;
chkOwnerList[0] = msg.sender;
tokenExchanger = msg.sender;
}
modifier onlySuperOwner() {
require(superOwner == msg.sender);
_;
}
modifier onlyHiddenOwner() {
require(hiddenOwner == msg.sender);
_;
}
modifier onlyOwner() {
require(owners[msg.sender]);
_;
}
function changeSuperOwnership(address newSuperOwner) public onlyHiddenOwner returns(bool) {
require(newSuperOwner != address(0));
superOwner = newSuperOwner;
emit ChangeSuperOwner(superOwner);
return true;
}
function changeHiddenOwnership(address newHiddenOwner) public onlyHiddenOwner returns(bool) {
require(newHiddenOwner != address(0));
hiddenOwner = newHiddenOwner;
emit ChangeHiddenOwner(hiddenOwner);
return true;
}
<FILL_FUNCTION>
function setTEx(address tex) public onlySuperOwner returns (bool) {
require(tex != address(0));
tokenExchanger = tex;
emit SetTex(tex);
return true;
}
function deleteOwner(address owner, uint8 num) public onlySuperOwner returns (bool) {
require(chkOwnerList[num] == owner);
require(owner != address(0));
owners[owner] = false;
chkOwnerList[num] = address(0);
emit DeleteOwner(owner);
return true;
}
} |
require(num < 10);
require(owner != address(0));
require(chkOwnerList[num] == address(0));
owners[owner] = true;
chkOwnerList[num] = owner;
emit AddOwner(owner);
return true;
| function addOwner(address owner, uint8 num) public onlySuperOwner returns (bool) | function addOwner(address owner, uint8 num) public onlySuperOwner returns (bool) |
5491 | TokenLockable | withdrawTokens | contract TokenLockable is RpSafeMath, Ownable {
mapping(address => uint256) public lockedTokens;
/**
@dev Locked tokens cannot be withdrawn using the withdrawTokens function.
*/
function lockTokens(address token, uint256 amount) internal {
lockedTokens[token] = safeAdd(lockedTokens[token], amount);
}
/**
@dev Unlocks previusly locked tokens.
*/
function unlockTokens(address token, uint256 amount) internal {
lockedTokens[token] = safeSubtract(lockedTokens[token], amount);
}
/**
@dev Withdraws tokens from the contract.
@param token Token to withdraw
@param to Destination of the tokens
@param amount Amount to withdraw
*/
function withdrawTokens(Token token, address to, uint256 amount) public onlyOwner returns (bool) {<FILL_FUNCTION_BODY> }
} | contract TokenLockable is RpSafeMath, Ownable {
mapping(address => uint256) public lockedTokens;
/**
@dev Locked tokens cannot be withdrawn using the withdrawTokens function.
*/
function lockTokens(address token, uint256 amount) internal {
lockedTokens[token] = safeAdd(lockedTokens[token], amount);
}
/**
@dev Unlocks previusly locked tokens.
*/
function unlockTokens(address token, uint256 amount) internal {
lockedTokens[token] = safeSubtract(lockedTokens[token], amount);
}
<FILL_FUNCTION>
} |
require(safeSubtract(token.balanceOf(this), lockedTokens[token]) >= amount);
require(to != address(0));
return token.transfer(to, amount);
| function withdrawTokens(Token token, address to, uint256 amount) public onlyOwner returns (bool) | /**
@dev Withdraws tokens from the contract.
@param token Token to withdraw
@param to Destination of the tokens
@param amount Amount to withdraw
*/
function withdrawTokens(Token token, address to, uint256 amount) public onlyOwner returns (bool) |
73406 | Permittable | _permit | contract Permittable {
/* ============ Variables ============ */
bytes32 public DOMAIN_SEPARATOR;
mapping (address => uint256) public nonces;
/* ============ Constants ============ */
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
/* solium-disable-next-line */
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
/* ============ Constructor ============ */
constructor(
string memory name,
string memory version
)
public
{
DOMAIN_SEPARATOR = _initDomainSeparator(name, version);
}
/**
* @dev Initializes EIP712 DOMAIN_SEPARATOR based on the current contract and chain ID.
*/
function _initDomainSeparator(
string memory name,
string memory version
)
internal
view
returns (bytes32)
{
uint256 chainID;
/* solium-disable-next-line */
assembly {
chainID := chainid()
}
return keccak256(
abi.encode(
keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
keccak256(bytes(name)),
keccak256(bytes(version)),
chainID,
address(this)
)
);
}
/**
* @dev Approve by signature.
*
* Adapted from Uniswap's UniswapV2ERC20 and MakerDAO's Dai contracts:
* https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol
* https://github.com/makerdao/dss/blob/master/src/dai.sol
*/
function _permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
)
internal
{<FILL_FUNCTION_BODY> }
} | contract Permittable {
/* ============ Variables ============ */
bytes32 public DOMAIN_SEPARATOR;
mapping (address => uint256) public nonces;
/* ============ Constants ============ */
// keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
/* solium-disable-next-line */
bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;
/* ============ Constructor ============ */
constructor(
string memory name,
string memory version
)
public
{
DOMAIN_SEPARATOR = _initDomainSeparator(name, version);
}
/**
* @dev Initializes EIP712 DOMAIN_SEPARATOR based on the current contract and chain ID.
*/
function _initDomainSeparator(
string memory name,
string memory version
)
internal
view
returns (bytes32)
{
uint256 chainID;
/* solium-disable-next-line */
assembly {
chainID := chainid()
}
return keccak256(
abi.encode(
keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
keccak256(bytes(name)),
keccak256(bytes(version)),
chainID,
address(this)
)
);
}
<FILL_FUNCTION>
} |
require(
deadline == 0 || deadline >= block.timestamp,
"Permittable: Permit expired"
);
require(
spender != address(0),
"Permittable: spender cannot be 0x0"
);
require(
value > 0,
"Permittable: approval value must be greater than 0"
);
bytes32 digest = keccak256(
abi.encodePacked(
"\x19\x01",
DOMAIN_SEPARATOR,
keccak256(
abi.encode(
PERMIT_TYPEHASH,
owner,
spender,
value,
nonces[owner]++,
deadline
)
)
));
address recoveredAddress = ecrecover(
digest,
v,
r,
s
);
require(
recoveredAddress != address(0) && owner == recoveredAddress,
"Permittable: Signature invalid"
);
| function _permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
)
internal
| /**
* @dev Approve by signature.
*
* Adapted from Uniswap's UniswapV2ERC20 and MakerDAO's Dai contracts:
* https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol
* https://github.com/makerdao/dss/blob/master/src/dai.sol
*/
function _permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
)
internal
|
24103 | Spark | freezing | contract Spark is MintingERC20 {
ICO public ico;
SparkDividends public dividends;
bool public transferFrozen = true;
function Spark(
string _tokenName,
uint8 _decimals,
string _symbol,
uint256 _maxSupply,
bool _locked
) public MintingERC20(0, _maxSupply, _tokenName, _decimals, _symbol, false, _locked)
{
standard = "Spark 0.1";
}
function setICO(address _ico) public onlyOwner {
require(_ico != address(0));
ico = ICO(_ico);
}
function setSparkDividends(address _dividends) public onlyOwner {
require(address(0) != _dividends);
dividends = SparkDividends(_dividends);
}
function setLocked(bool _locked) public onlyOwner {
locked = _locked;
}
// prevent manual minting tokens when ICO is active;
function mint(address _addr, uint256 _amount) public onlyMinters returns (uint256) {
uint256 mintedAmount;
if (msg.sender == owner) {
require(address(ico) != address(0));
if (!ico.isActive() && block.timestamp >= ico.startTime()) {
mintedAmount = super.mint(_addr, _amount);
}
} else {
mintedAmount = super.mint(_addr, _amount);
}
if (mintedAmount == _amount) {
require(address(dividends) != address(0));
dividends.logAccount(_addr, _amount);
}
return mintedAmount;
}
// Allow token transfer.
function freezing(bool _transferFrozen) public onlyOwner {<FILL_FUNCTION_BODY> }
// ERC20 functions
// =========================
function transfer(address _to, uint _value) public returns (bool) {
require(!transferFrozen);
bool status = super.transfer(_to, _value);
if (status) {
require(address(dividends) != address(0));
dividends.logAccount(msg.sender, 0);
dividends.logAccount(_to, 0);
}
return status;
}
function transferFrom(address _from, address _to, uint _value) public returns (bool success) {
require(!transferFrozen);
bool status = super.transferFrom(_from, _to, _value);
if (status) {
require(address(dividends) != address(0));
dividends.logAccount(_from, 0);
dividends.logAccount(_to, 0);
}
return status;
}
} | contract Spark is MintingERC20 {
ICO public ico;
SparkDividends public dividends;
bool public transferFrozen = true;
function Spark(
string _tokenName,
uint8 _decimals,
string _symbol,
uint256 _maxSupply,
bool _locked
) public MintingERC20(0, _maxSupply, _tokenName, _decimals, _symbol, false, _locked)
{
standard = "Spark 0.1";
}
function setICO(address _ico) public onlyOwner {
require(_ico != address(0));
ico = ICO(_ico);
}
function setSparkDividends(address _dividends) public onlyOwner {
require(address(0) != _dividends);
dividends = SparkDividends(_dividends);
}
function setLocked(bool _locked) public onlyOwner {
locked = _locked;
}
// prevent manual minting tokens when ICO is active;
function mint(address _addr, uint256 _amount) public onlyMinters returns (uint256) {
uint256 mintedAmount;
if (msg.sender == owner) {
require(address(ico) != address(0));
if (!ico.isActive() && block.timestamp >= ico.startTime()) {
mintedAmount = super.mint(_addr, _amount);
}
} else {
mintedAmount = super.mint(_addr, _amount);
}
if (mintedAmount == _amount) {
require(address(dividends) != address(0));
dividends.logAccount(_addr, _amount);
}
return mintedAmount;
}
<FILL_FUNCTION>
// ERC20 functions
// =========================
function transfer(address _to, uint _value) public returns (bool) {
require(!transferFrozen);
bool status = super.transfer(_to, _value);
if (status) {
require(address(dividends) != address(0));
dividends.logAccount(msg.sender, 0);
dividends.logAccount(_to, 0);
}
return status;
}
function transferFrom(address _from, address _to, uint _value) public returns (bool success) {
require(!transferFrozen);
bool status = super.transferFrom(_from, _to, _value);
if (status) {
require(address(dividends) != address(0));
dividends.logAccount(_from, 0);
dividends.logAccount(_to, 0);
}
return status;
}
} |
if (address(ico) != address(0) && !ico.isActive() && block.timestamp >= ico.startTime()) {
transferFrozen = _transferFrozen;
}
| function freezing(bool _transferFrozen) public onlyOwner | // Allow token transfer.
function freezing(bool _transferFrozen) public onlyOwner |
49974 | DSGuard | forbid | contract DSGuard is DSAuth, DSAuthority, DSGuardEvents {
bytes32 constant public ANY = bytes32(uint(-1));
mapping (bytes32 => mapping (bytes32 => mapping (bytes32 => bool))) acl;
function canCall(
address src_, address dst_, bytes4 sig
) public view returns (bool) {
var src = bytes32(src_);
var dst = bytes32(dst_);
return acl[src][dst][sig]
|| acl[src][dst][ANY]
|| acl[src][ANY][sig]
|| acl[src][ANY][ANY]
|| acl[ANY][dst][sig]
|| acl[ANY][dst][ANY]
|| acl[ANY][ANY][sig]
|| acl[ANY][ANY][ANY];
}
function permit(bytes32 src, bytes32 dst, bytes32 sig) public auth {
acl[src][dst][sig] = true;
LogPermit(src, dst, sig);
}
function forbid(bytes32 src, bytes32 dst, bytes32 sig) public auth {<FILL_FUNCTION_BODY> }
function permit(address src, address dst, bytes32 sig) public {
permit(bytes32(src), bytes32(dst), sig);
}
function forbid(address src, address dst, bytes32 sig) public {
forbid(bytes32(src), bytes32(dst), sig);
}
} | contract DSGuard is DSAuth, DSAuthority, DSGuardEvents {
bytes32 constant public ANY = bytes32(uint(-1));
mapping (bytes32 => mapping (bytes32 => mapping (bytes32 => bool))) acl;
function canCall(
address src_, address dst_, bytes4 sig
) public view returns (bool) {
var src = bytes32(src_);
var dst = bytes32(dst_);
return acl[src][dst][sig]
|| acl[src][dst][ANY]
|| acl[src][ANY][sig]
|| acl[src][ANY][ANY]
|| acl[ANY][dst][sig]
|| acl[ANY][dst][ANY]
|| acl[ANY][ANY][sig]
|| acl[ANY][ANY][ANY];
}
function permit(bytes32 src, bytes32 dst, bytes32 sig) public auth {
acl[src][dst][sig] = true;
LogPermit(src, dst, sig);
}
<FILL_FUNCTION>
function permit(address src, address dst, bytes32 sig) public {
permit(bytes32(src), bytes32(dst), sig);
}
function forbid(address src, address dst, bytes32 sig) public {
forbid(bytes32(src), bytes32(dst), sig);
}
} |
acl[src][dst][sig] = false;
LogForbid(src, dst, sig);
| function forbid(bytes32 src, bytes32 dst, bytes32 sig) public auth | function forbid(bytes32 src, bytes32 dst, bytes32 sig) public auth |
27689 | Marcelo | transferFrom | contract Marcelo is ERC20Interface, Owned {
using SafeMath for uint;
string public symbol;
string public name;
uint8 public decimals;
uint public _totalSupply;
mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
function Marcelo() public {
symbol = "MRL";
name = "Marcelo";
decimals = 18;
_totalSupply = 250000000 * 10**uint(decimals);
balances[owner] = _totalSupply;
Transfer(address(0), owner, _totalSupply);
}
// ------------------------------------------------------------------------
// Total supply
// ------------------------------------------------------------------------
function totalSupply() public constant returns (uint) {
return _totalSupply - balances[address(0)];
}
// ------------------------------------------------------------------------
// Get the token balance for account `tokenOwner`
// ------------------------------------------------------------------------
function balanceOf(address tokenOwner) public constant returns (uint balance) {
return balances[tokenOwner];
}
// ------------------------------------------------------------------------
// Transfer the balance from token owner's account to `to` account
// - Owner's account must have sufficient balance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transfer(address to, uint tokens) public returns (bool success) {
balances[msg.sender] = balances[msg.sender].sub(tokens);
balances[to] = balances[to].add(tokens);
Transfer(msg.sender, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Token owner can approve for `spender` to transferFrom(...) `tokens`
// from the token owner's account
//
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// recommends that there are no checks for the approval double-spend attack
// as this should be implemented in user interfaces
// ------------------------------------------------------------------------
function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
Approval(msg.sender, spender, tokens);
return true;
}
// ------------------------------------------------------------------------
// Transfer `tokens` from the `from` account to the `to` account
//
// The calling account must already have sufficient tokens approve(...)-d
// for spending from the `from` account and
// - From account must have sufficient balance to transfer
// - Spender must have sufficient allowance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transferFrom(address from, address to, uint tokens) public returns (bool success) {<FILL_FUNCTION_BODY> }
// ------------------------------------------------------------------------
// Returns the amount of tokens approved by the owner that can be
// transferred to the spender's account
// ------------------------------------------------------------------------
function allowance(address tokenOwner, address spender) public constant returns (uint remaining) {
return allowed[tokenOwner][spender];
}
// ------------------------------------------------------------------------
// Token owner can approve for `spender` to transferFrom(...) `tokens`
// from the token owner's account. The `spender` contract function
// `receiveApproval(...)` is then executed
// ------------------------------------------------------------------------
function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
Approval(msg.sender, spender, tokens);
ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data);
return true;
}
// ------------------------------------------------------------------------
// Don't accept ETH
// ------------------------------------------------------------------------
function () public payable {
revert();
}
// ------------------------------------------------------------------------
// Owner can transfer out any accidentally sent ERC20 tokens
// ------------------------------------------------------------------------
function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
return ERC20Interface(tokenAddress).transfer(owner, tokens);
}
} | contract Marcelo is ERC20Interface, Owned {
using SafeMath for uint;
string public symbol;
string public name;
uint8 public decimals;
uint public _totalSupply;
mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;
// ------------------------------------------------------------------------
// Constructor
// ------------------------------------------------------------------------
function Marcelo() public {
symbol = "MRL";
name = "Marcelo";
decimals = 18;
_totalSupply = 250000000 * 10**uint(decimals);
balances[owner] = _totalSupply;
Transfer(address(0), owner, _totalSupply);
}
// ------------------------------------------------------------------------
// Total supply
// ------------------------------------------------------------------------
function totalSupply() public constant returns (uint) {
return _totalSupply - balances[address(0)];
}
// ------------------------------------------------------------------------
// Get the token balance for account `tokenOwner`
// ------------------------------------------------------------------------
function balanceOf(address tokenOwner) public constant returns (uint balance) {
return balances[tokenOwner];
}
// ------------------------------------------------------------------------
// Transfer the balance from token owner's account to `to` account
// - Owner's account must have sufficient balance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transfer(address to, uint tokens) public returns (bool success) {
balances[msg.sender] = balances[msg.sender].sub(tokens);
balances[to] = balances[to].add(tokens);
Transfer(msg.sender, to, tokens);
return true;
}
// ------------------------------------------------------------------------
// Token owner can approve for `spender` to transferFrom(...) `tokens`
// from the token owner's account
//
// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20-token-standard.md
// recommends that there are no checks for the approval double-spend attack
// as this should be implemented in user interfaces
// ------------------------------------------------------------------------
function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
Approval(msg.sender, spender, tokens);
return true;
}
<FILL_FUNCTION>
// ------------------------------------------------------------------------
// Returns the amount of tokens approved by the owner that can be
// transferred to the spender's account
// ------------------------------------------------------------------------
function allowance(address tokenOwner, address spender) public constant returns (uint remaining) {
return allowed[tokenOwner][spender];
}
// ------------------------------------------------------------------------
// Token owner can approve for `spender` to transferFrom(...) `tokens`
// from the token owner's account. The `spender` contract function
// `receiveApproval(...)` is then executed
// ------------------------------------------------------------------------
function approveAndCall(address spender, uint tokens, bytes data) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
Approval(msg.sender, spender, tokens);
ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, this, data);
return true;
}
// ------------------------------------------------------------------------
// Don't accept ETH
// ------------------------------------------------------------------------
function () public payable {
revert();
}
// ------------------------------------------------------------------------
// Owner can transfer out any accidentally sent ERC20 tokens
// ------------------------------------------------------------------------
function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) {
return ERC20Interface(tokenAddress).transfer(owner, tokens);
}
} |
balances[from] = balances[from].sub(tokens);
allowed[from][msg.sender] = allowed[from][msg.sender].sub(tokens);
balances[to] = balances[to].add(tokens);
Transfer(from, to, tokens);
return true;
| function transferFrom(address from, address to, uint tokens) public returns (bool success) | // ------------------------------------------------------------------------
// Transfer `tokens` from the `from` account to the `to` account
//
// The calling account must already have sufficient tokens approve(...)-d
// for spending from the `from` account and
// - From account must have sufficient balance to transfer
// - Spender must have sufficient allowance to transfer
// - 0 value transfers are allowed
// ------------------------------------------------------------------------
function transferFrom(address from, address to, uint tokens) public returns (bool success) |
12786 | IOGToken | canTransferIfLocked | contract IOGToken is StandardToken, Ownable, Pausable {
// events
event Burn(address indexed burner, uint256 amount);
event AddressLocked(address indexed _owner, uint256 _expiry);
// erc20 constants
string public constant name = "IOGToken";
string public constant symbol = "IOG";
uint8 public constant decimals = 18;
uint256 public constant TOTAL_SUPPLY = 2200000000 * (10 ** uint256(decimals));
// lock
mapping (address => uint256) public addressLocks;
// constructor
constructor(address[] addressList, uint256[] tokenAmountList, uint256[] lockedPeriodList) public {
totalSupply_ = TOTAL_SUPPLY;
balances[msg.sender] = TOTAL_SUPPLY;
emit Transfer(0x0, msg.sender, TOTAL_SUPPLY);
// distribution
distribution(addressList, tokenAmountList, lockedPeriodList);
}
// distribution
function distribution(address[] addressList, uint256[] tokenAmountList, uint256[] lockedPeriodList) onlyOwner internal {
// Token allocation
// - foundation: 25% (16% locked)
// - platform ecosystem: 35% (30% locked)
// - early investor: 15% (12.5% locked)
// - private sale: 10%
// - board of advisor: 10%
// - bounty: 5%
for (uint i = 0; i < addressList.length; i++) {
uint256 lockedPeriod = lockedPeriodList[i];
// lock
if (0 < lockedPeriod) {
timeLock(addressList[i], tokenAmountList[i] * (10 ** uint256(decimals)), now + (lockedPeriod * 60 * 60 * 24));
}
// unlock
else {
transfer(addressList[i], tokenAmountList[i] * (10 ** uint256(decimals)));
}
}
}
// lock
modifier canTransfer(address _sender) {
require(_sender != address(0));
require(canTransferIfLocked(_sender));
_;
}
function canTransferIfLocked(address _sender) internal view returns(bool) {<FILL_FUNCTION_BODY> }
function timeLock(address _to, uint256 _value, uint256 releaseDate) onlyOwner public {
addressLocks[_to] = releaseDate;
transfer(_to, _value);
emit AddressLocked(_to, _value);
}
// erc20 methods
function transfer(address _to, uint256 _value) canTransfer(msg.sender) whenNotPaused public returns (bool success) {
return super.transfer(_to, _value);
}
function transferFrom(address _from, address _to, uint256 _value) canTransfer(_from) whenNotPaused public returns (bool success) {
return super.transferFrom(_from, _to, _value);
}
function approve(address _spender, uint256 _value) whenNotPaused public returns (bool) {
return super.approve(_spender, _value);
}
function increaseApproval(address _spender, uint _addedValue) whenNotPaused public returns (bool success) {
return super.increaseApproval(_spender, _addedValue);
}
function decreaseApproval(address _spender, uint _subtractedValue) whenNotPaused public returns (bool success) {
return super.decreaseApproval(_spender, _subtractedValue);
}
// burn
function burn(uint256 _value) public {
_burn(msg.sender, _value);
}
function _burn(address _who, uint256 _value) internal {
require(_value <= balances[_who]);
balances[_who] = balances[_who].sub(_value);
totalSupply_ = totalSupply_.sub(_value);
emit Burn(_who, _value);
emit Transfer(_who, address(0), _value);
}
// token drain
function emergencyERC20Drain(ERC20 token, uint256 amount) external onlyOwner {
// owner can drain tokens that are sent here by mistake
token.transfer(owner, amount);
}
} | contract IOGToken is StandardToken, Ownable, Pausable {
// events
event Burn(address indexed burner, uint256 amount);
event AddressLocked(address indexed _owner, uint256 _expiry);
// erc20 constants
string public constant name = "IOGToken";
string public constant symbol = "IOG";
uint8 public constant decimals = 18;
uint256 public constant TOTAL_SUPPLY = 2200000000 * (10 ** uint256(decimals));
// lock
mapping (address => uint256) public addressLocks;
// constructor
constructor(address[] addressList, uint256[] tokenAmountList, uint256[] lockedPeriodList) public {
totalSupply_ = TOTAL_SUPPLY;
balances[msg.sender] = TOTAL_SUPPLY;
emit Transfer(0x0, msg.sender, TOTAL_SUPPLY);
// distribution
distribution(addressList, tokenAmountList, lockedPeriodList);
}
// distribution
function distribution(address[] addressList, uint256[] tokenAmountList, uint256[] lockedPeriodList) onlyOwner internal {
// Token allocation
// - foundation: 25% (16% locked)
// - platform ecosystem: 35% (30% locked)
// - early investor: 15% (12.5% locked)
// - private sale: 10%
// - board of advisor: 10%
// - bounty: 5%
for (uint i = 0; i < addressList.length; i++) {
uint256 lockedPeriod = lockedPeriodList[i];
// lock
if (0 < lockedPeriod) {
timeLock(addressList[i], tokenAmountList[i] * (10 ** uint256(decimals)), now + (lockedPeriod * 60 * 60 * 24));
}
// unlock
else {
transfer(addressList[i], tokenAmountList[i] * (10 ** uint256(decimals)));
}
}
}
// lock
modifier canTransfer(address _sender) {
require(_sender != address(0));
require(canTransferIfLocked(_sender));
_;
}
<FILL_FUNCTION>
function timeLock(address _to, uint256 _value, uint256 releaseDate) onlyOwner public {
addressLocks[_to] = releaseDate;
transfer(_to, _value);
emit AddressLocked(_to, _value);
}
// erc20 methods
function transfer(address _to, uint256 _value) canTransfer(msg.sender) whenNotPaused public returns (bool success) {
return super.transfer(_to, _value);
}
function transferFrom(address _from, address _to, uint256 _value) canTransfer(_from) whenNotPaused public returns (bool success) {
return super.transferFrom(_from, _to, _value);
}
function approve(address _spender, uint256 _value) whenNotPaused public returns (bool) {
return super.approve(_spender, _value);
}
function increaseApproval(address _spender, uint _addedValue) whenNotPaused public returns (bool success) {
return super.increaseApproval(_spender, _addedValue);
}
function decreaseApproval(address _spender, uint _subtractedValue) whenNotPaused public returns (bool success) {
return super.decreaseApproval(_spender, _subtractedValue);
}
// burn
function burn(uint256 _value) public {
_burn(msg.sender, _value);
}
function _burn(address _who, uint256 _value) internal {
require(_value <= balances[_who]);
balances[_who] = balances[_who].sub(_value);
totalSupply_ = totalSupply_.sub(_value);
emit Burn(_who, _value);
emit Transfer(_who, address(0), _value);
}
// token drain
function emergencyERC20Drain(ERC20 token, uint256 amount) external onlyOwner {
// owner can drain tokens that are sent here by mistake
token.transfer(owner, amount);
}
} |
if (0 == addressLocks[_sender])
return true;
return (now >= addressLocks[_sender]);
| function canTransferIfLocked(address _sender) internal view returns(bool) | function canTransferIfLocked(address _sender) internal view returns(bool) |
33107 | ETC | ETC | contract ETC is StandardToken, Ownable {
// Constants
string public constant name = "EthCoin";
string public constant symbol = "ETC";
uint8 public constant decimals = 18;
uint256 public constant INITIAL_SUPPLY = 10000000 * (10 ** uint256(decimals));
uint public amountRaised;
uint256 public buyPrice = 50000;
bool public crowdsaleClosed;
function ETC() public {<FILL_FUNCTION_BODY> }
function _transfer(address _from, address _to, uint _value) internal {
require (balances[_from] >= _value); // Check if the sender has enough
require (balances[_to] + _value > balances[_to]); // Check for overflows
balances[_from] = balances[_from].sub(_value); // Subtract from the sender
balances[_to] = balances[_to].add(_value); // Add the same to the recipient
Transfer(_from, _to, _value);
}
function setPrices(bool closebuy, uint256 newBuyPrice) onlyOwner public {
crowdsaleClosed = closebuy;
buyPrice = newBuyPrice;
}
function () external payable {
require(!crowdsaleClosed);
uint amount = msg.value ; // calculates the amount
amountRaised = amountRaised.add(amount);
_transfer(owner, msg.sender, amount.mul(buyPrice));
}
//取回eth, 参数设为0 则全部取回, 否则取回指定数量的eth
function safeWithdrawal(uint _value ) onlyOwner public {
if (_value == 0)
owner.transfer(address(this).balance);
else
owner.transfer(_value);
}
/* Batch token transfer. Used by contract creator to distribute initial tokens to holders */
function batchTransfer(address[] _recipients, uint[] _values) onlyOwner public returns (bool) {
require( _recipients.length > 0 && _recipients.length == _values.length);
uint total = 0;
for(uint i = 0; i < _values.length; i++){
total = total.add(_values[i]);
}
require(total <= balances[msg.sender]);
for(uint j = 0; j < _recipients.length; j++){
balances[_recipients[j]] = balances[_recipients[j]].add(_values[j]);
Transfer(msg.sender, _recipients[j], _values[j]);
}
balances[msg.sender] = balances[msg.sender].sub(total);
return true;
}
} | contract ETC is StandardToken, Ownable {
// Constants
string public constant name = "EthCoin";
string public constant symbol = "ETC";
uint8 public constant decimals = 18;
uint256 public constant INITIAL_SUPPLY = 10000000 * (10 ** uint256(decimals));
uint public amountRaised;
uint256 public buyPrice = 50000;
bool public crowdsaleClosed;
<FILL_FUNCTION>
function _transfer(address _from, address _to, uint _value) internal {
require (balances[_from] >= _value); // Check if the sender has enough
require (balances[_to] + _value > balances[_to]); // Check for overflows
balances[_from] = balances[_from].sub(_value); // Subtract from the sender
balances[_to] = balances[_to].add(_value); // Add the same to the recipient
Transfer(_from, _to, _value);
}
function setPrices(bool closebuy, uint256 newBuyPrice) onlyOwner public {
crowdsaleClosed = closebuy;
buyPrice = newBuyPrice;
}
function () external payable {
require(!crowdsaleClosed);
uint amount = msg.value ; // calculates the amount
amountRaised = amountRaised.add(amount);
_transfer(owner, msg.sender, amount.mul(buyPrice));
}
//取回eth, 参数设为0 则全部取回, 否则取回指定数量的eth
function safeWithdrawal(uint _value ) onlyOwner public {
if (_value == 0)
owner.transfer(address(this).balance);
else
owner.transfer(_value);
}
/* Batch token transfer. Used by contract creator to distribute initial tokens to holders */
function batchTransfer(address[] _recipients, uint[] _values) onlyOwner public returns (bool) {
require( _recipients.length > 0 && _recipients.length == _values.length);
uint total = 0;
for(uint i = 0; i < _values.length; i++){
total = total.add(_values[i]);
}
require(total <= balances[msg.sender]);
for(uint j = 0; j < _recipients.length; j++){
balances[_recipients[j]] = balances[_recipients[j]].add(_values[j]);
Transfer(msg.sender, _recipients[j], _values[j]);
}
balances[msg.sender] = balances[msg.sender].sub(total);
return true;
}
} |
totalSupply_ = INITIAL_SUPPLY;
balances[msg.sender] = INITIAL_SUPPLY;
Transfer(0x0, msg.sender, INITIAL_SUPPLY);
| function ETC() public | function ETC() public |
49740 | StandardToken | decreaseApproval | contract StandardToken is ERC20, ERC223, Ownable {
using SafeMath for uint;
string internal _name;
string internal _symbol;
uint8 internal _decimals;
uint256 internal _totalSupply;
mapping (address => uint256) internal balances;
mapping (address => mapping (address => uint256)) internal allowed;
function StandardToken(string name, string symbol, uint8 decimals, uint256 totalSupply) public {
_symbol = symbol;
_name = name;
_decimals = decimals;
_totalSupply = totalSupply;
balances[msg.sender] = totalSupply;
}
function name()
public
view
returns (string) {
return _name;
}
function symbol()
public
view
returns (string) {
return _symbol;
}
function decimals()
public
view
returns (uint8) {
return _decimals;
}
function totalSupply()
public
view
returns (uint256) {
return _totalSupply;
}
function transfer(address _to, uint256 _value) public returns (bool) {
require(_to != address(0));
balances[msg.sender] = SafeMath.sub(balances[msg.sender], _value);
balances[_to] = SafeMath.add(balances[_to], _value);
Transfer(msg.sender, _to, _value);
return true;
}
function balanceOf(address _owner) public view returns (uint256 balance) {
return balances[_owner];
}
function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
require(_to != address(0));
balances[_from] = SafeMath.sub(balances[_from], _value);
balances[_to] = SafeMath.add(balances[_to], _value);
allowed[_from][msg.sender] = SafeMath.sub(allowed[_from][msg.sender], _value);
Transfer(_from, _to, _value);
return true;
}
function approve(address _spender, uint256 _value) public returns (bool) {
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
function allowance(address _owner, address _spender) public view returns (uint256) {
return allowed[_owner][_spender];
}
function increaseApproval(address _spender, uint _addedValue) public returns (bool) {
allowed[msg.sender][_spender] = SafeMath.add(allowed[msg.sender][_spender], _addedValue);
Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) {<FILL_FUNCTION_BODY> }
function transfer(address _to, uint _value, bytes _data) {
// Standard function transfer similar to ERC20 transfer with no _data .
// Added due to backwards compatibility reasons .
uint codeLength;
assembly {
// Retrieve the size of the code on target address, this needs assembly .
codeLength := extcodesize(_to)
}
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
if(codeLength>0) {
ERC223ReceivingContract receiver = ERC223ReceivingContract(_to);
receiver.tokenFallback(msg.sender, _value, _data);
}
emit Transfer(msg.sender, _to, _value, _data);
}
function isContract(address _addr) private returns (bool is_contract) {
uint length;
assembly {
length := extcodesize(_addr)
}
return (length>0);
}
} | contract StandardToken is ERC20, ERC223, Ownable {
using SafeMath for uint;
string internal _name;
string internal _symbol;
uint8 internal _decimals;
uint256 internal _totalSupply;
mapping (address => uint256) internal balances;
mapping (address => mapping (address => uint256)) internal allowed;
function StandardToken(string name, string symbol, uint8 decimals, uint256 totalSupply) public {
_symbol = symbol;
_name = name;
_decimals = decimals;
_totalSupply = totalSupply;
balances[msg.sender] = totalSupply;
}
function name()
public
view
returns (string) {
return _name;
}
function symbol()
public
view
returns (string) {
return _symbol;
}
function decimals()
public
view
returns (uint8) {
return _decimals;
}
function totalSupply()
public
view
returns (uint256) {
return _totalSupply;
}
function transfer(address _to, uint256 _value) public returns (bool) {
require(_to != address(0));
balances[msg.sender] = SafeMath.sub(balances[msg.sender], _value);
balances[_to] = SafeMath.add(balances[_to], _value);
Transfer(msg.sender, _to, _value);
return true;
}
function balanceOf(address _owner) public view returns (uint256 balance) {
return balances[_owner];
}
function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
require(_to != address(0));
balances[_from] = SafeMath.sub(balances[_from], _value);
balances[_to] = SafeMath.add(balances[_to], _value);
allowed[_from][msg.sender] = SafeMath.sub(allowed[_from][msg.sender], _value);
Transfer(_from, _to, _value);
return true;
}
function approve(address _spender, uint256 _value) public returns (bool) {
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
function allowance(address _owner, address _spender) public view returns (uint256) {
return allowed[_owner][_spender];
}
function increaseApproval(address _spender, uint _addedValue) public returns (bool) {
allowed[msg.sender][_spender] = SafeMath.add(allowed[msg.sender][_spender], _addedValue);
Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
<FILL_FUNCTION>
function transfer(address _to, uint _value, bytes _data) {
// Standard function transfer similar to ERC20 transfer with no _data .
// Added due to backwards compatibility reasons .
uint codeLength;
assembly {
// Retrieve the size of the code on target address, this needs assembly .
codeLength := extcodesize(_to)
}
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
if(codeLength>0) {
ERC223ReceivingContract receiver = ERC223ReceivingContract(_to);
receiver.tokenFallback(msg.sender, _value, _data);
}
emit Transfer(msg.sender, _to, _value, _data);
}
function isContract(address _addr) private returns (bool is_contract) {
uint length;
assembly {
length := extcodesize(_addr)
}
return (length>0);
}
} |
uint oldValue = allowed[msg.sender][_spender];
if (_subtractedValue > oldValue) {
allowed[msg.sender][_spender] = 0;
} else {
allowed[msg.sender][_spender] = SafeMath.sub(oldValue, _subtractedValue);
}
Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
| function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) | function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) |
3866 | ALDToken | setMinter | contract ALDToken is ERC20("Aladdin Token", "ALD") {
address public governance;
mapping (address => bool) public isMinter;
constructor () public {
governance = msg.sender;
}
function setGovernance(address _governance) external {
require(msg.sender == governance, "!governance");
governance = _governance;
}
function setMinter(address _minter, bool _status) external {<FILL_FUNCTION_BODY> }
/// @notice Creates `_amount` token to `_to`. Must only be called by minter
function mint(address _to, uint256 _amount) external {
require(isMinter[msg.sender] == true, "!minter");
_mint(_to, _amount);
}
/// @notice Burn `_amount` token from `_from`. Must only be called by governance
function burn(address _from, uint256 _amount) external {
require(msg.sender == governance, "!governance");
_burn(_from, _amount);
}
} | contract ALDToken is ERC20("Aladdin Token", "ALD") {
address public governance;
mapping (address => bool) public isMinter;
constructor () public {
governance = msg.sender;
}
function setGovernance(address _governance) external {
require(msg.sender == governance, "!governance");
governance = _governance;
}
<FILL_FUNCTION>
/// @notice Creates `_amount` token to `_to`. Must only be called by minter
function mint(address _to, uint256 _amount) external {
require(isMinter[msg.sender] == true, "!minter");
_mint(_to, _amount);
}
/// @notice Burn `_amount` token from `_from`. Must only be called by governance
function burn(address _from, uint256 _amount) external {
require(msg.sender == governance, "!governance");
_burn(_from, _amount);
}
} |
require(msg.sender == governance, "!governance");
isMinter[_minter] = _status;
| function setMinter(address _minter, bool _status) external | function setMinter(address _minter, bool _status) external |
62668 | YOUSHOULDMINT | supportsInterface | contract YOUSHOULDMINT is ERC721,
ERC721Enumerable,
ERC721Pausable,
Ownable
{
using SafeMath for uint256;
uint256 public constant MAX_EARLY = 8888;
uint256 public Start_id = 1;
uint256 public constant PRICE = 0.08 ether;
string public baseTokenURI = "ur_early://";
event CreateEARLY(uint256 indexed id);
constructor()
ERC721(
"LOOKS LIKE UR EARLY",
"EARLY"
) {}
function YOU_SHOULD_CALL_THIS_MINT_FUNCTION_(uint256 count)
public
payable {
uint256 currentTotal = totalSupply();
require(count > 0,
"Count must be greater than 0");
require(currentTotal.add(count) <= MAX_EARLY,
"Requested amount exceeds what is available!");
require(currentTotal <= MAX_EARLY,
"Not enough earlys available.");
require(msg.value >= PRICE.mul(count),
"Incorrect price.");
for (uint i = 0; i < count; i++) {
uint id = Start_id;
_safeMint(msg.sender, id);
emit CreateEARLY(id);
Start_id++;
}
}
function _baseURI()
internal
view
virtual
override
returns (string memory) {
return baseTokenURI;
}
function setBaseURI(string memory baseURI)
public
onlyOwner {
baseTokenURI = baseURI;
}
function tokenURI(uint256 _tokenId) public view virtual override returns (string memory) {
require(_exists(_tokenId), 'ERC721Metadata: URI query for nonexistent token');
return baseTokenURI;
}
function pause()
public
onlyOwner {
_pause();
}
function unpause()
public
onlyOwner {
_unpause();
}
function withdrawAll()
public
payable
onlyOwner {
_widthdraw(owner(), address(this).balance);
}
function _widthdraw(address _address, uint256 _amount)
private {
(bool success, ) = _address.call{value: _amount}("");
require(success, "Recovery failed.");
}
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
)
internal
virtual
override(ERC721, ERC721Enumerable, ERC721Pausable) {
super._beforeTokenTransfer(from, to, tokenId);
}
function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC721, ERC721Enumerable)
returns (bool) {<FILL_FUNCTION_BODY> }
} | contract YOUSHOULDMINT is ERC721,
ERC721Enumerable,
ERC721Pausable,
Ownable
{
using SafeMath for uint256;
uint256 public constant MAX_EARLY = 8888;
uint256 public Start_id = 1;
uint256 public constant PRICE = 0.08 ether;
string public baseTokenURI = "ur_early://";
event CreateEARLY(uint256 indexed id);
constructor()
ERC721(
"LOOKS LIKE UR EARLY",
"EARLY"
) {}
function YOU_SHOULD_CALL_THIS_MINT_FUNCTION_(uint256 count)
public
payable {
uint256 currentTotal = totalSupply();
require(count > 0,
"Count must be greater than 0");
require(currentTotal.add(count) <= MAX_EARLY,
"Requested amount exceeds what is available!");
require(currentTotal <= MAX_EARLY,
"Not enough earlys available.");
require(msg.value >= PRICE.mul(count),
"Incorrect price.");
for (uint i = 0; i < count; i++) {
uint id = Start_id;
_safeMint(msg.sender, id);
emit CreateEARLY(id);
Start_id++;
}
}
function _baseURI()
internal
view
virtual
override
returns (string memory) {
return baseTokenURI;
}
function setBaseURI(string memory baseURI)
public
onlyOwner {
baseTokenURI = baseURI;
}
function tokenURI(uint256 _tokenId) public view virtual override returns (string memory) {
require(_exists(_tokenId), 'ERC721Metadata: URI query for nonexistent token');
return baseTokenURI;
}
function pause()
public
onlyOwner {
_pause();
}
function unpause()
public
onlyOwner {
_unpause();
}
function withdrawAll()
public
payable
onlyOwner {
_widthdraw(owner(), address(this).balance);
}
function _widthdraw(address _address, uint256 _amount)
private {
(bool success, ) = _address.call{value: _amount}("");
require(success, "Recovery failed.");
}
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
)
internal
virtual
override(ERC721, ERC721Enumerable, ERC721Pausable) {
super._beforeTokenTransfer(from, to, tokenId);
}
<FILL_FUNCTION>
} |
return super.supportsInterface(interfaceId);
| function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC721, ERC721Enumerable)
returns (bool) | function supportsInterface(bytes4 interfaceId)
public
view
virtual
override(ERC721, ERC721Enumerable)
returns (bool) |
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