The contract might run on ETH but the tokens could be for pig-ear-coins and using ETH to store arrays would cost lots of gas to run the contract.
I don't know much but it looks to me like lots of code is missing here or it is missing an include file
uint256 is some type of patch-up they use for now with strings and you have to cast them back in client code from
what i remember.
Time stamps are in seconds from 1/1/1970 by the looks of it
for (uint i = 0; i < len; i++) {
'i' is not used i don't think and
address to = buyers;
should read i think more like
address to = buyers open-bracket i close bracket // BBCode removes brackets when i post
Not sure where the claimed[] array comes from
this is there fully source codeI don't know much but it looks to me like lots of code is missing here or it is missing an include file
uint256 is some type of patch-up they use for now with strings and you have to cast them back in client code from
what i remember.
Time stamps are in seconds from 1/1/1970 by the looks of it
for (uint i = 0; i < len; i++) {
'i' is not used i don't think and
address to = buyers;
should read i think more like
address to = buyers open-bracket i close bracket // BBCode removes brackets when i post
Not sure where the claimed[] array comes from
Quote
pragma solidity ^0.4.13;
/**
* @title Ownable
* @dev The Ownable contract has an owner address, and provides basic authorization control
* functions, this simplifies the implementation of "user permissions".
*/
contract Ownable {
address public owner;
/**
* @dev The Ownable constructor sets the original `owner` of the contract to the sender
* account.
*/
function Ownable() {
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) onlyOwner {
if (newOwner != address(0)) {
owner = newOwner;
}
}
}
/**
* @title SafeMath
* @dev Math operations with safety checks that throw on error
*/
library SafeMath {
function mul(uint256 a, uint256 b) internal constant returns (uint256) {
uint256 c = a * b;
assert(a == 0 || c / a == b);
return c;
}
function div(uint256 a, uint256 b) internal constant returns (uint256) {
// assert(b > 0); // Solidity automatically throws when dividing by 0
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
function sub(uint256 a, uint256 b) internal constant returns (uint256) {
assert(b <= a);
return a - b;
}
function add(uint256 a, uint256 b) internal constant returns (uint256) {
uint256 c = a + b;
assert(c >= a);
return c;
}
}
contract MintableInterface {
function mint(address _to, uint256 _amount) returns (bool);
function mintLocked(address _to, uint256 _amount) returns (bool);
}
/**
* This is the Crowdsale contract from OpenZeppelin version 1.2.0
* The only changes are:
* - the type of token field is changed from MintableToken to MintableInterface
* - the createTokenContract() method is removed, the token field must be initialized in the derived contracts constuctor
**/
/**
* @title Crowdsale
* @dev Crowdsale is a base contract for managing a token crowdsale.
* Crowdsales have a start and end block, where investors can make
* token purchases and the crowdsale will assign them tokens based
* on a token per ETH rate. Funds collected are forwarded to a wallet
* as they arrive.
*/
contract Crowdsale {
using SafeMath for uint256;
// The token being sold
MintableInterface public token;
// start and end block where investments are allowed (both inclusive)
uint256 public startBlock;
uint256 public endBlock;
// address where funds are collected
address public wallet;
// how many token units a buyer gets per wei
uint256 public rate;
// amount of raised money in wei
uint256 public weiRaised;
/**
* event for token purchase logging
* @param purchaser who paid for the tokens
* @param beneficiary who got the tokens
* @param value weis paid for purchase
* @param amount amount of tokens purchased
*/
event TokenPurchase(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);
function Crowdsale(uint256 _startBlock, uint256 _endBlock, uint256 _rate, address _wallet) {
require(_startBlock >= block.number);
require(_endBlock >= _startBlock);
require(_rate > 0);
require(_wallet != 0x0);
startBlock = _startBlock;
endBlock = _endBlock;
rate = _rate;
wallet = _wallet;
}
// fallback function can be used to buy tokens
function () payable {
buyTokens(msg.sender);
}
// low level token purchase function
function buyTokens(address beneficiary) payable {
require(beneficiary != 0x0);
require(validPurchase());
uint256 weiAmount = msg.value;
// calculate token amount to be created
uint256 tokens = weiAmount.mul(rate);
// update state
weiRaised = weiRaised.add(weiAmount);
token.mint(beneficiary, tokens);
TokenPurchase(msg.sender, beneficiary, weiAmount, tokens);
forwardFunds();
}
// send ether to the fund collection wallet
// override to create custom fund forwarding mechanisms
function forwardFunds() internal {
wallet.transfer(msg.value);
}
// @return true if the transaction can buy tokens
function validPurchase() internal constant returns (bool) {
uint256 current = block.number;
bool withinPeriod = current >= startBlock && current <= endBlock;
bool nonZeroPurchase = msg.value != 0;
return withinPeriod && nonZeroPurchase;
}
// @return true if crowdsale event has ended
function hasEnded() public constant returns (bool) {
return block.number > endBlock;
}
}
/**
* @title CappedCrowdsale
* @dev Extension of Crowsdale with a max amount of funds raised
*/
contract TokenCappedCrowdsale is Crowdsale {
using SafeMath for uint256;
// tokenCap should be initialized in derived contract
uint256 public tokenCap;
uint256 public soldTokens;
// overriding Crowdsale#hasEnded to add tokenCap logic
// @return true if crowdsale event has ended
function hasEnded() public constant returns (bool) {
bool capReached = soldTokens >= tokenCap;
return super.hasEnded() || capReached;
}
// overriding Crowdsale#buyTokens to add extra tokenCap logic
function buyTokens(address beneficiary) payable {
// calculate token amount to be created
uint256 tokens = msg.value.mul(rate);
uint256 newTotalSold = soldTokens.add(tokens);
require(newTotalSold <= tokenCap);
soldTokens = newTotalSold;
super.buyTokens(beneficiary);
}
}
/**
* @title ERC20Basic
* @dev Simpler version of ERC20 interface
* @dev see https://github.com/ethereum/EIPs/issues/179
*/
contract ERC20Basic {
uint256 public totalSupply;
function balanceOf(address who) constant returns (uint256);
function transfer(address to, uint256 value) returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
}
/**
* This is the TokenTimelock contract from OpenZeppelin version 1.2.0
* The only changes are:
* - all contract fields are declared as public
* - removed deprecated claim() method
**/
/**
* @title TokenTimelock
* @dev TokenTimelock is a token holder contract that will allow a
* beneficiary to extract the tokens after a given release time
*/
contract TokenTimelock {
// ERC20 basic token contract being held
ERC20Basic public token;
// beneficiary of tokens after they are released
address public beneficiary;
// timestamp when token release is enabled
uint public releaseTime;
function TokenTimelock(ERC20Basic _token, address _beneficiary, uint _releaseTime) {
require(_releaseTime > now);
token = _token;
beneficiary = _beneficiary;
releaseTime = _releaseTime;
}
/**
* @notice Transfers tokens held by timelock to beneficiary.
*/
function release() {
require(now >= releaseTime);
uint amount = token.balanceOf(this);
require(amount > 0);
token.transfer(beneficiary, amount);
}
}
/**
* @title Basic token
* @dev Basic version of StandardToken, with no allowances.
*/
contract BasicToken is ERC20Basic {
using SafeMath for uint256;
mapping(address => uint256) balances;
/**
* @dev transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
function transfer(address _to, uint256 _value) returns (bool) {
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
Transfer(msg.sender, _to, _value);
return true;
}
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address _owner) constant returns (uint256 balance) {
return balances[_owner];
}
}
/**
* @title ERC20 interface
* @dev see https://github.com/ethereum/EIPs/issues/20
*/
contract ERC20 is ERC20Basic {
function allowance(address owner, address spender) constant returns (uint256);
function transferFrom(address from, address to, uint256 value) returns (bool);
function approve(address spender, uint256 value) returns (bool);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
/**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* @dev https://github.com/ethereum/EIPs/issues/20
* @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*/
contract StandardToken is ERC20, BasicToken {
mapping (address => mapping (address => uint256)) allowed;
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amout of tokens to be transfered
*/
function transferFrom(address _from, address _to, uint256 _value) returns (bool) {
var _allowance = allowed[_from][msg.sender];
// Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
// require (_value <= _allowance);
balances[_to] = balances[_to].add(_value);
balances[_from] = balances[_from].sub(_value);
allowed[_from][msg.sender] = _allowance.sub(_value);
Transfer(_from, _to, _value);
return true;
}
/**
* @dev Aprove the passed address to spend the specified amount of tokens on behalf of msg.sender.
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint256 _value) returns (bool) {
// To change the approve amount you first have to reduce the addresses`
// allowance to zero by calling `approve(_spender, 0)` if it is not
// already 0 to mitigate the race condition described here:
// https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
require((_value == 0) || (allowed[msg.sender][_spender] == 0));
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifing the amount of tokens still avaible for the spender.
*/
function allowance(address _owner, address _spender) constant returns (uint256 remaining) {
return allowed[_owner][_spender];
}
}
contract EidooToken is MintableInterface, Ownable, StandardToken {
using SafeMath for uint256;
string public name = "Eidoo Token";
string public symbol = "EDO";
uint256 public decimals = 18;
uint256 public transferableFromBlock;
uint256 public lockEndBlock;
mapping (address => uint256) public initiallyLockedAmount;
function EidooToken(uint256 _transferableFromBlock, uint256 _lockEndBlock) {
require(_lockEndBlock > _transferableFromBlock);
transferableFromBlock = _transferableFromBlock;
lockEndBlock = _lockEndBlock;
}
modifier canTransfer(address _from, uint _value) {
if (block.number < lockEndBlock) {
require(block.number >= transferableFromBlock);
uint256 locked = lockedBalanceOf(_from);
if (locked > 0) {
uint256 newBalance = balanceOf(_from).sub(_value);
require(newBalance >= locked);
}
}
_;
}
function lockedBalanceOf(address _to) constant returns(uint256) {
uint256 locked = initiallyLockedAmount[_to];
if (block.number >= lockEndBlock ) return 0;
else if (block.number <= transferableFromBlock) return locked;
uint256 releaseForBlock = locked.div(lockEndBlock.sub(transferableFromBlock));
uint256 released = block.number.sub(transferableFromBlock).mul(releaseForBlock);
return locked.sub(released);
}
function transfer(address _to, uint _value) canTransfer(msg.sender, _value) returns (bool) {
return super.transfer(_to, _value);
}
function transferFrom(address _from, address _to, uint _value) canTransfer(_from, _value) returns (bool) {
return super.transferFrom(_from, _to, _value);
}
// --------------- Minting methods
modifier canMint() {
require(!mintingFinished());
_;
}
function mintingFinished() constant returns(bool) {
return block.number >= transferableFromBlock;
}
/**
* @dev Function to mint tokens, implements MintableInterface
* @param _to The address that will recieve the minted tokens.
* @param _amount The amount of tokens to mint.
* @return A boolean that indicates if the operation was successful.
*/
function mint(address _to, uint256 _amount) onlyOwner canMint returns (bool) {
totalSupply = totalSupply.add(_amount);
balances[_to] = balances[_to].add(_amount);
Transfer(address(0), _to, _amount);
return true;
}
function mintLocked(address _to, uint256 _amount) onlyOwner canMint returns (bool) {
initiallyLockedAmount[_to] = initiallyLockedAmount[_to].add(_amount);
return mint(_to, _amount);
}
function burn(uint256 _amount) returns (bool) {
balances[msg.sender] = balances[msg.sender].sub(_amount);
totalSupply = totalSupply.sub(_amount);
Transfer(msg.sender, address(0), _amount);
return true;
}
}
contract EidooTokenSale is Ownable, TokenCappedCrowdsale {
using SafeMath for uint256;
uint256 public MAXIMUM_SUPPLY = 100000000 * 10**18;
uint256 [] public LOCKED = [ 20000000 * 10**18,
15000000 * 10**18,
6000000 * 10**18,
6000000 * 10**18 ];
uint256 public POST_ICO = 21000000 * 10**18;
uint256 [] public LOCK_END = [
1570190400, // 4 October 2019 12:00:00 GMT
1538654400, // 4 October 2018 12:00:00 GMT
1522843200, // 4 April 2018 12:00:00 GMT
1515067200 // 4 January 2018 12:00:00 GMT
];
mapping (address => bool) public claimed;
TokenTimelock [4] public timeLocks;
event ClaimTokens(address indexed to, uint amount);
modifier beforeStart() {
require(block.number < startBlock);
_;
}
function EidooTokenSale(
uint256 _startBlock,
uint256 _endBlock,
uint256 _rate,
uint _tokenStartBlock,
uint _tokenLockEndBlock,
address _wallet
)
Crowdsale(_startBlock, _endBlock, _rate, _wallet)
{
token = new EidooToken(_tokenStartBlock, _tokenLockEndBlock);
// create timelocks for tokens
timeLocks[0] = new TokenTimelock(EidooToken(token), _wallet, LOCK_END[0]);
timeLocks[1] = new TokenTimelock(EidooToken(token), _wallet, LOCK_END[1]);
timeLocks[2] = new TokenTimelock(EidooToken(token), _wallet, LOCK_END[2]);
timeLocks[3] = new TokenTimelock(EidooToken(token), _wallet, LOCK_END[3]);
token.mint(address(timeLocks[0]), LOCKED[0]);
token.mint(address(timeLocks[1]), LOCKED[1]);
token.mint(address(timeLocks[2]), LOCKED[2]);
token.mint(address(timeLocks[3]), LOCKED[3]);
token.mint(_wallet, POST_ICO);
// initialize maximum number of tokens that can be sold
tokenCap = MAXIMUM_SUPPLY.sub(EidooToken(token).totalSupply());
}
function claimTokens(address [] buyers, uint [] amounts) onlyOwner beforeStart public {
require(buyers.length == amounts.length);
uint len = buyers.length;
for (uint i = 0; i < len; i++) {
address to = buyers;
uint256 amount = amounts;
if (amount > 0 && !claimed[to]) {
claimed[to] = true;
if (to == 0x32Be343B94f860124dC4fEe278FDCBD38C102D88) {
// replace Poloniex Wallet address
to = 0x2274bebe2b47Ec99D50BB9b12005c921F28B83bB;
}
tokenCap = tokenCap.sub(amount);
uint256 unlockedAmount = amount.div(10).mul(3);
token.mint(to, unlockedAmount);
token.mintLocked(to, amount.sub(unlockedAmount));
ClaimTokens(to, amount);
}
}
}
}
/**
* @title Ownable
* @dev The Ownable contract has an owner address, and provides basic authorization control
* functions, this simplifies the implementation of "user permissions".
*/
contract Ownable {
address public owner;
/**
* @dev The Ownable constructor sets the original `owner` of the contract to the sender
* account.
*/
function Ownable() {
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) onlyOwner {
if (newOwner != address(0)) {
owner = newOwner;
}
}
}
/**
* @title SafeMath
* @dev Math operations with safety checks that throw on error
*/
library SafeMath {
function mul(uint256 a, uint256 b) internal constant returns (uint256) {
uint256 c = a * b;
assert(a == 0 || c / a == b);
return c;
}
function div(uint256 a, uint256 b) internal constant returns (uint256) {
// assert(b > 0); // Solidity automatically throws when dividing by 0
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
function sub(uint256 a, uint256 b) internal constant returns (uint256) {
assert(b <= a);
return a - b;
}
function add(uint256 a, uint256 b) internal constant returns (uint256) {
uint256 c = a + b;
assert(c >= a);
return c;
}
}
contract MintableInterface {
function mint(address _to, uint256 _amount) returns (bool);
function mintLocked(address _to, uint256 _amount) returns (bool);
}
/**
* This is the Crowdsale contract from OpenZeppelin version 1.2.0
* The only changes are:
* - the type of token field is changed from MintableToken to MintableInterface
* - the createTokenContract() method is removed, the token field must be initialized in the derived contracts constuctor
**/
/**
* @title Crowdsale
* @dev Crowdsale is a base contract for managing a token crowdsale.
* Crowdsales have a start and end block, where investors can make
* token purchases and the crowdsale will assign them tokens based
* on a token per ETH rate. Funds collected are forwarded to a wallet
* as they arrive.
*/
contract Crowdsale {
using SafeMath for uint256;
// The token being sold
MintableInterface public token;
// start and end block where investments are allowed (both inclusive)
uint256 public startBlock;
uint256 public endBlock;
// address where funds are collected
address public wallet;
// how many token units a buyer gets per wei
uint256 public rate;
// amount of raised money in wei
uint256 public weiRaised;
/**
* event for token purchase logging
* @param purchaser who paid for the tokens
* @param beneficiary who got the tokens
* @param value weis paid for purchase
* @param amount amount of tokens purchased
*/
event TokenPurchase(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);
function Crowdsale(uint256 _startBlock, uint256 _endBlock, uint256 _rate, address _wallet) {
require(_startBlock >= block.number);
require(_endBlock >= _startBlock);
require(_rate > 0);
require(_wallet != 0x0);
startBlock = _startBlock;
endBlock = _endBlock;
rate = _rate;
wallet = _wallet;
}
// fallback function can be used to buy tokens
function () payable {
buyTokens(msg.sender);
}
// low level token purchase function
function buyTokens(address beneficiary) payable {
require(beneficiary != 0x0);
require(validPurchase());
uint256 weiAmount = msg.value;
// calculate token amount to be created
uint256 tokens = weiAmount.mul(rate);
// update state
weiRaised = weiRaised.add(weiAmount);
token.mint(beneficiary, tokens);
TokenPurchase(msg.sender, beneficiary, weiAmount, tokens);
forwardFunds();
}
// send ether to the fund collection wallet
// override to create custom fund forwarding mechanisms
function forwardFunds() internal {
wallet.transfer(msg.value);
}
// @return true if the transaction can buy tokens
function validPurchase() internal constant returns (bool) {
uint256 current = block.number;
bool withinPeriod = current >= startBlock && current <= endBlock;
bool nonZeroPurchase = msg.value != 0;
return withinPeriod && nonZeroPurchase;
}
// @return true if crowdsale event has ended
function hasEnded() public constant returns (bool) {
return block.number > endBlock;
}
}
/**
* @title CappedCrowdsale
* @dev Extension of Crowsdale with a max amount of funds raised
*/
contract TokenCappedCrowdsale is Crowdsale {
using SafeMath for uint256;
// tokenCap should be initialized in derived contract
uint256 public tokenCap;
uint256 public soldTokens;
// overriding Crowdsale#hasEnded to add tokenCap logic
// @return true if crowdsale event has ended
function hasEnded() public constant returns (bool) {
bool capReached = soldTokens >= tokenCap;
return super.hasEnded() || capReached;
}
// overriding Crowdsale#buyTokens to add extra tokenCap logic
function buyTokens(address beneficiary) payable {
// calculate token amount to be created
uint256 tokens = msg.value.mul(rate);
uint256 newTotalSold = soldTokens.add(tokens);
require(newTotalSold <= tokenCap);
soldTokens = newTotalSold;
super.buyTokens(beneficiary);
}
}
/**
* @title ERC20Basic
* @dev Simpler version of ERC20 interface
* @dev see https://github.com/ethereum/EIPs/issues/179
*/
contract ERC20Basic {
uint256 public totalSupply;
function balanceOf(address who) constant returns (uint256);
function transfer(address to, uint256 value) returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
}
/**
* This is the TokenTimelock contract from OpenZeppelin version 1.2.0
* The only changes are:
* - all contract fields are declared as public
* - removed deprecated claim() method
**/
/**
* @title TokenTimelock
* @dev TokenTimelock is a token holder contract that will allow a
* beneficiary to extract the tokens after a given release time
*/
contract TokenTimelock {
// ERC20 basic token contract being held
ERC20Basic public token;
// beneficiary of tokens after they are released
address public beneficiary;
// timestamp when token release is enabled
uint public releaseTime;
function TokenTimelock(ERC20Basic _token, address _beneficiary, uint _releaseTime) {
require(_releaseTime > now);
token = _token;
beneficiary = _beneficiary;
releaseTime = _releaseTime;
}
/**
* @notice Transfers tokens held by timelock to beneficiary.
*/
function release() {
require(now >= releaseTime);
uint amount = token.balanceOf(this);
require(amount > 0);
token.transfer(beneficiary, amount);
}
}
/**
* @title Basic token
* @dev Basic version of StandardToken, with no allowances.
*/
contract BasicToken is ERC20Basic {
using SafeMath for uint256;
mapping(address => uint256) balances;
/**
* @dev transfer token for a specified address
* @param _to The address to transfer to.
* @param _value The amount to be transferred.
*/
function transfer(address _to, uint256 _value) returns (bool) {
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
Transfer(msg.sender, _to, _value);
return true;
}
/**
* @dev Gets the balance of the specified address.
* @param _owner The address to query the the balance of.
* @return An uint256 representing the amount owned by the passed address.
*/
function balanceOf(address _owner) constant returns (uint256 balance) {
return balances[_owner];
}
}
/**
* @title ERC20 interface
* @dev see https://github.com/ethereum/EIPs/issues/20
*/
contract ERC20 is ERC20Basic {
function allowance(address owner, address spender) constant returns (uint256);
function transferFrom(address from, address to, uint256 value) returns (bool);
function approve(address spender, uint256 value) returns (bool);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
/**
* @title Standard ERC20 token
*
* @dev Implementation of the basic standard token.
* @dev https://github.com/ethereum/EIPs/issues/20
* @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
*/
contract StandardToken is ERC20, BasicToken {
mapping (address => mapping (address => uint256)) allowed;
/**
* @dev Transfer tokens from one address to another
* @param _from address The address which you want to send tokens from
* @param _to address The address which you want to transfer to
* @param _value uint256 the amout of tokens to be transfered
*/
function transferFrom(address _from, address _to, uint256 _value) returns (bool) {
var _allowance = allowed[_from][msg.sender];
// Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
// require (_value <= _allowance);
balances[_to] = balances[_to].add(_value);
balances[_from] = balances[_from].sub(_value);
allowed[_from][msg.sender] = _allowance.sub(_value);
Transfer(_from, _to, _value);
return true;
}
/**
* @dev Aprove the passed address to spend the specified amount of tokens on behalf of msg.sender.
* @param _spender The address which will spend the funds.
* @param _value The amount of tokens to be spent.
*/
function approve(address _spender, uint256 _value) returns (bool) {
// To change the approve amount you first have to reduce the addresses`
// allowance to zero by calling `approve(_spender, 0)` if it is not
// already 0 to mitigate the race condition described here:
// https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
require((_value == 0) || (allowed[msg.sender][_spender] == 0));
allowed[msg.sender][_spender] = _value;
Approval(msg.sender, _spender, _value);
return true;
}
/**
* @dev Function to check the amount of tokens that an owner allowed to a spender.
* @param _owner address The address which owns the funds.
* @param _spender address The address which will spend the funds.
* @return A uint256 specifing the amount of tokens still avaible for the spender.
*/
function allowance(address _owner, address _spender) constant returns (uint256 remaining) {
return allowed[_owner][_spender];
}
}
contract EidooToken is MintableInterface, Ownable, StandardToken {
using SafeMath for uint256;
string public name = "Eidoo Token";
string public symbol = "EDO";
uint256 public decimals = 18;
uint256 public transferableFromBlock;
uint256 public lockEndBlock;
mapping (address => uint256) public initiallyLockedAmount;
function EidooToken(uint256 _transferableFromBlock, uint256 _lockEndBlock) {
require(_lockEndBlock > _transferableFromBlock);
transferableFromBlock = _transferableFromBlock;
lockEndBlock = _lockEndBlock;
}
modifier canTransfer(address _from, uint _value) {
if (block.number < lockEndBlock) {
require(block.number >= transferableFromBlock);
uint256 locked = lockedBalanceOf(_from);
if (locked > 0) {
uint256 newBalance = balanceOf(_from).sub(_value);
require(newBalance >= locked);
}
}
_;
}
function lockedBalanceOf(address _to) constant returns(uint256) {
uint256 locked = initiallyLockedAmount[_to];
if (block.number >= lockEndBlock ) return 0;
else if (block.number <= transferableFromBlock) return locked;
uint256 releaseForBlock = locked.div(lockEndBlock.sub(transferableFromBlock));
uint256 released = block.number.sub(transferableFromBlock).mul(releaseForBlock);
return locked.sub(released);
}
function transfer(address _to, uint _value) canTransfer(msg.sender, _value) returns (bool) {
return super.transfer(_to, _value);
}
function transferFrom(address _from, address _to, uint _value) canTransfer(_from, _value) returns (bool) {
return super.transferFrom(_from, _to, _value);
}
// --------------- Minting methods
modifier canMint() {
require(!mintingFinished());
_;
}
function mintingFinished() constant returns(bool) {
return block.number >= transferableFromBlock;
}
/**
* @dev Function to mint tokens, implements MintableInterface
* @param _to The address that will recieve the minted tokens.
* @param _amount The amount of tokens to mint.
* @return A boolean that indicates if the operation was successful.
*/
function mint(address _to, uint256 _amount) onlyOwner canMint returns (bool) {
totalSupply = totalSupply.add(_amount);
balances[_to] = balances[_to].add(_amount);
Transfer(address(0), _to, _amount);
return true;
}
function mintLocked(address _to, uint256 _amount) onlyOwner canMint returns (bool) {
initiallyLockedAmount[_to] = initiallyLockedAmount[_to].add(_amount);
return mint(_to, _amount);
}
function burn(uint256 _amount) returns (bool) {
balances[msg.sender] = balances[msg.sender].sub(_amount);
totalSupply = totalSupply.sub(_amount);
Transfer(msg.sender, address(0), _amount);
return true;
}
}
contract EidooTokenSale is Ownable, TokenCappedCrowdsale {
using SafeMath for uint256;
uint256 public MAXIMUM_SUPPLY = 100000000 * 10**18;
uint256 [] public LOCKED = [ 20000000 * 10**18,
15000000 * 10**18,
6000000 * 10**18,
6000000 * 10**18 ];
uint256 public POST_ICO = 21000000 * 10**18;
uint256 [] public LOCK_END = [
1570190400, // 4 October 2019 12:00:00 GMT
1538654400, // 4 October 2018 12:00:00 GMT
1522843200, // 4 April 2018 12:00:00 GMT
1515067200 // 4 January 2018 12:00:00 GMT
];
mapping (address => bool) public claimed;
TokenTimelock [4] public timeLocks;
event ClaimTokens(address indexed to, uint amount);
modifier beforeStart() {
require(block.number < startBlock);
_;
}
function EidooTokenSale(
uint256 _startBlock,
uint256 _endBlock,
uint256 _rate,
uint _tokenStartBlock,
uint _tokenLockEndBlock,
address _wallet
)
Crowdsale(_startBlock, _endBlock, _rate, _wallet)
{
token = new EidooToken(_tokenStartBlock, _tokenLockEndBlock);
// create timelocks for tokens
timeLocks[0] = new TokenTimelock(EidooToken(token), _wallet, LOCK_END[0]);
timeLocks[1] = new TokenTimelock(EidooToken(token), _wallet, LOCK_END[1]);
timeLocks[2] = new TokenTimelock(EidooToken(token), _wallet, LOCK_END[2]);
timeLocks[3] = new TokenTimelock(EidooToken(token), _wallet, LOCK_END[3]);
token.mint(address(timeLocks[0]), LOCKED[0]);
token.mint(address(timeLocks[1]), LOCKED[1]);
token.mint(address(timeLocks[2]), LOCKED[2]);
token.mint(address(timeLocks[3]), LOCKED[3]);
token.mint(_wallet, POST_ICO);
// initialize maximum number of tokens that can be sold
tokenCap = MAXIMUM_SUPPLY.sub(EidooToken(token).totalSupply());
}
function claimTokens(address [] buyers, uint [] amounts) onlyOwner beforeStart public {
require(buyers.length == amounts.length);
uint len = buyers.length;
for (uint i = 0; i < len; i++) {
address to = buyers;
uint256 amount = amounts;
if (amount > 0 && !claimed[to]) {
claimed[to] = true;
if (to == 0x32Be343B94f860124dC4fEe278FDCBD38C102D88) {
// replace Poloniex Wallet address
to = 0x2274bebe2b47Ec99D50BB9b12005c921F28B83bB;
}
tokenCap = tokenCap.sub(amount);
uint256 unlockedAmount = amount.div(10).mul(3);
token.mint(to, unlockedAmount);
token.mintLocked(to, amount.sub(unlockedAmount));
ClaimTokens(to, amount);
}
}
}
}