ERC-20
Overview
Max Total Supply
479,131.60931789265090367 TND
Holders
1,378
Market
Onchain Market Cap
$0.00
Circulating Supply Market Cap
-
Other Info
Token Contract (WITH 18 Decimals)
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
IcoToken
Compiler Version
v0.4.18+commit.9cf6e910
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity)
/** *Submitted for verification at Etherscan.io on 2018-02-02 */ //File: node_modules/zeppelin-solidity/contracts/token/ERC20/ERC20Basic.sol pragma solidity ^0.4.18; /** * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/179 */ contract ERC20Basic { function totalSupply() public view returns (uint256); function balanceOf(address who) public view returns (uint256); function transfer(address to, uint256 value) public returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } //File: node_modules/zeppelin-solidity/contracts/math/SafeMath.sol pragma solidity ^0.4.18; /** * @title SafeMath * @dev Math operations with safety checks that throw on error */ library SafeMath { /** * @dev Multiplies two numbers, throws on overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; assert(c / a == b); return c; } /** * @dev Integer division of two numbers, truncating the quotient. */ function div(uint256 a, uint256 b) internal pure 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; } /** * @dev Substracts two numbers, throws on overflow (i.e. if subtrahend is greater than minuend). */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } /** * @dev Adds two numbers, throws on overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } //File: node_modules/zeppelin-solidity/contracts/token/ERC20/BasicToken.sol pragma solidity ^0.4.18; /** * @title Basic token * @dev Basic version of StandardToken, with no allowances. */ contract BasicToken is ERC20Basic { using SafeMath for uint256; mapping(address => uint256) balances; uint256 totalSupply_; /** * @dev total number of tokens in existence */ function totalSupply() public view returns (uint256) { return totalSupply_; } /** * @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) public returns (bool) { require(_to != address(0)); require(_value <= balances[msg.sender]); // SafeMath.sub will throw if there is not enough balance. 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) public view returns (uint256 balance) { return balances[_owner]; } } //File: node_modules/zeppelin-solidity/contracts/token/ERC20/ERC20.sol pragma solidity ^0.4.18; /** * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 */ contract ERC20 is ERC20Basic { function allowance(address owner, address spender) public view returns (uint256); function transferFrom(address from, address to, uint256 value) public returns (bool); function approve(address spender, uint256 value) public returns (bool); event Approval(address indexed owner, address indexed spender, uint256 value); } //File: node_modules/zeppelin-solidity/contracts/token/ERC20/StandardToken.sol pragma solidity ^0.4.18; /** * @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)) internal 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 amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) public returns (bool) { require(_to != address(0)); require(_value <= balances[_from]); require(_value <= allowed[_from][msg.sender]); balances[_from] = balances[_from].sub(_value); balances[_to] = balances[_to].add(_value); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value); Transfer(_from, _to, _value); return true; } /** * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. * * Beware that changing an allowance with this method brings the risk that someone may use both the old * and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this * race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * @param _spender The address which will spend the funds. * @param _value The amount of tokens to be spent. */ function approve(address _spender, uint256 _value) public returns (bool) { 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 specifying the amount of tokens still available for the spender. */ function allowance(address _owner, address _spender) public view returns (uint256) { return allowed[_owner][_spender]; } /** * @dev Increase the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To increment * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _addedValue The amount of tokens to increase the allowance by. */ function increaseApproval(address _spender, uint _addedValue) public returns (bool) { allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue); Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } /** * @dev Decrease the amount of tokens that an owner allowed to a spender. * * approve should be called when allowed[_spender] == 0. To decrement * allowed value is better to use this function to avoid 2 calls (and wait until * the first transaction is mined) * From MonolithDAO Token.sol * @param _spender The address which will spend the funds. * @param _subtractedValue The amount of tokens to decrease the allowance by. */ function decreaseApproval(address _spender, uint _subtractedValue) public returns (bool) { uint oldValue = allowed[msg.sender][_spender]; if (_subtractedValue > oldValue) { allowed[msg.sender][_spender] = 0; } else { allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue); } Approval(msg.sender, _spender, allowed[msg.sender][_spender]); return true; } } //File: node_modules/zeppelin-solidity/contracts/ownership/Ownable.sol pragma solidity ^0.4.18; /** * @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; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev The Ownable constructor sets the original `owner` of the contract to the sender * account. */ function Ownable() 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 { require(newOwner != address(0)); OwnershipTransferred(owner, newOwner); owner = newOwner; } } //File: node_modules/zeppelin-solidity/contracts/token/ERC20/MintableToken.sol pragma solidity ^0.4.18; /** * @title Mintable token * @dev Simple ERC20 Token example, with mintable token creation * @dev Issue: * https://github.com/OpenZeppelin/zeppelin-solidity/issues/120 * Based on code by TokenMarketNet: https://github.com/TokenMarketNet/ico/blob/master/contracts/MintableToken.sol */ contract MintableToken is StandardToken, Ownable { event Mint(address indexed to, uint256 amount); event MintFinished(); bool public mintingFinished = false; modifier canMint() { require(!mintingFinished); _; } /** * @dev Function to mint tokens * @param _to The address that will receive 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 public returns (bool) { totalSupply_ = totalSupply_.add(_amount); balances[_to] = balances[_to].add(_amount); Mint(_to, _amount); Transfer(address(0), _to, _amount); return true; } /** * @dev Function to stop minting new tokens. * @return True if the operation was successful. */ function finishMinting() onlyOwner canMint public returns (bool) { mintingFinished = true; MintFinished(); return true; } } //File: node_modules/zeppelin-solidity/contracts/crowdsale/Crowdsale.sol pragma solidity ^0.4.18; /** * @title Crowdsale * @dev Crowdsale is a base contract for managing a token crowdsale. * Crowdsales have a start and end timestamps, 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 MintableToken public token; // start and end timestamps where investments are allowed (both inclusive) uint256 public startTime; uint256 public endTime; // 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 _startTime, uint256 _endTime, uint256 _rate, address _wallet) public { require(_startTime >= now); require(_endTime >= _startTime); require(_rate > 0); require(_wallet != address(0)); token = createTokenContract(); startTime = _startTime; endTime = _endTime; rate = _rate; wallet = _wallet; } // fallback function can be used to buy tokens function () external payable { buyTokens(msg.sender); } // low level token purchase function function buyTokens(address beneficiary) public payable { require(beneficiary != address(0)); require(validPurchase()); uint256 weiAmount = msg.value; // calculate token amount to be created uint256 tokens = getTokenAmount(weiAmount); // update state weiRaised = weiRaised.add(weiAmount); token.mint(beneficiary, tokens); TokenPurchase(msg.sender, beneficiary, weiAmount, tokens); forwardFunds(); } // @return true if crowdsale event has ended function hasEnded() public view returns (bool) { return now > endTime; } // creates the token to be sold. // override this method to have crowdsale of a specific mintable token. function createTokenContract() internal returns (MintableToken) { return new MintableToken(); } // Override this method to have a way to add business logic to your crowdsale when buying function getTokenAmount(uint256 weiAmount) internal view returns(uint256) { return weiAmount.mul(rate); } // 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 view returns (bool) { bool withinPeriod = now >= startTime && now <= endTime; bool nonZeroPurchase = msg.value != 0; return withinPeriod && nonZeroPurchase; } } //File: node_modules/zeppelin-solidity/contracts/lifecycle/Pausable.sol pragma solidity ^0.4.18; /** * @title Pausable * @dev Base contract which allows children to implement an emergency stop mechanism. */ contract Pausable is Ownable { event Pause(); event Unpause(); bool public paused = false; /** * @dev Modifier to make a function callable only when the contract is not paused. */ modifier whenNotPaused() { require(!paused); _; } /** * @dev Modifier to make a function callable only when the contract is paused. */ modifier whenPaused() { require(paused); _; } /** * @dev called by the owner to pause, triggers stopped state */ function pause() onlyOwner whenNotPaused public { paused = true; Pause(); } /** * @dev called by the owner to unpause, returns to normal state */ function unpause() onlyOwner whenPaused public { paused = false; Unpause(); } } //File: node_modules/zeppelin-solidity/contracts/token/ERC20/SafeERC20.sol pragma solidity ^0.4.18; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure. * To use this library you can add a `using SafeERC20 for ERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { function safeTransfer(ERC20Basic token, address to, uint256 value) internal { assert(token.transfer(to, value)); } function safeTransferFrom(ERC20 token, address from, address to, uint256 value) internal { assert(token.transferFrom(from, to, value)); } function safeApprove(ERC20 token, address spender, uint256 value) internal { assert(token.approve(spender, value)); } } //File: node_modules/zeppelin-solidity/contracts/token/ERC20/TokenVesting.sol pragma solidity ^0.4.18; /** * @title TokenVesting * @dev A token holder contract that can release its token balance gradually like a * typical vesting scheme, with a cliff and vesting period. Optionally revocable by the * owner. */ contract TokenVesting is Ownable { using SafeMath for uint256; using SafeERC20 for ERC20Basic; event Released(uint256 amount); event Revoked(); // beneficiary of tokens after they are released address public beneficiary; uint256 public cliff; uint256 public start; uint256 public duration; bool public revocable; mapping (address => uint256) public released; mapping (address => bool) public revoked; /** * @dev Creates a vesting contract that vests its balance of any ERC20 token to the * _beneficiary, gradually in a linear fashion until _start + _duration. By then all * of the balance will have vested. * @param _beneficiary address of the beneficiary to whom vested tokens are transferred * @param _cliff duration in seconds of the cliff in which tokens will begin to vest * @param _duration duration in seconds of the period in which the tokens will vest * @param _revocable whether the vesting is revocable or not */ function TokenVesting(address _beneficiary, uint256 _start, uint256 _cliff, uint256 _duration, bool _revocable) public { require(_beneficiary != address(0)); require(_cliff <= _duration); beneficiary = _beneficiary; revocable = _revocable; duration = _duration; cliff = _start.add(_cliff); start = _start; } /** * @notice Transfers vested tokens to beneficiary. * @param token ERC20 token which is being vested */ function release(ERC20Basic token) public { uint256 unreleased = releasableAmount(token); require(unreleased > 0); released[token] = released[token].add(unreleased); token.safeTransfer(beneficiary, unreleased); Released(unreleased); } /** * @notice Allows the owner to revoke the vesting. Tokens already vested * remain in the contract, the rest are returned to the owner. * @param token ERC20 token which is being vested */ function revoke(ERC20Basic token) public onlyOwner { require(revocable); require(!revoked[token]); uint256 balance = token.balanceOf(this); uint256 unreleased = releasableAmount(token); uint256 refund = balance.sub(unreleased); revoked[token] = true; token.safeTransfer(owner, refund); Revoked(); } /** * @dev Calculates the amount that has already vested but hasn't been released yet. * @param token ERC20 token which is being vested */ function releasableAmount(ERC20Basic token) public view returns (uint256) { return vestedAmount(token).sub(released[token]); } /** * @dev Calculates the amount that has already vested. * @param token ERC20 token which is being vested */ function vestedAmount(ERC20Basic token) public view returns (uint256) { uint256 currentBalance = token.balanceOf(this); uint256 totalBalance = currentBalance.add(released[token]); if (now < cliff) { return 0; } else if (now >= start.add(duration) || revoked[token]) { return totalBalance; } else { return totalBalance.mul(now.sub(start)).div(duration); } } } //File: node_modules/zeppelin-solidity/contracts/token/ERC20/PausableToken.sol pragma solidity ^0.4.18; /** * @title Pausable token * @dev StandardToken modified with pausable transfers. **/ contract PausableToken is StandardToken, Pausable { function transfer(address _to, uint256 _value) public whenNotPaused returns (bool) { return super.transfer(_to, _value); } function transferFrom(address _from, address _to, uint256 _value) public whenNotPaused returns (bool) { return super.transferFrom(_from, _to, _value); } function approve(address _spender, uint256 _value) public whenNotPaused returns (bool) { return super.approve(_spender, _value); } function increaseApproval(address _spender, uint _addedValue) public whenNotPaused returns (bool success) { return super.increaseApproval(_spender, _addedValue); } function decreaseApproval(address _spender, uint _subtractedValue) public whenNotPaused returns (bool success) { return super.decreaseApproval(_spender, _subtractedValue); } } //File: src/contracts/ico/DividendToken.sol /** * @title Dividend contract * * @version 1.0 * @author Validity Labs AG <[email protected]> */ pragma solidity ^0.4.18; contract DividendToken is StandardToken, Ownable { using SafeMath for uint256; // time before dividendEndTime during which dividend cannot be claimed by token holders // instead the unclaimed dividend can be claimed by treasury in that time span uint256 public claimTimeout = 20 days; uint256 public dividendCycleTime = 350 days; uint256 public currentDividend; mapping(address => uint256) unclaimedDividend; // tracks when the dividend balance has been updated last time mapping(address => uint256) public lastUpdate; uint256 public lastDividendIncreaseDate; // allow payment of dividend only by special treasury account (treasury can be set and altered by owner, // multiple treasurer accounts are possible mapping(address => bool) public isTreasurer; uint256 public dividendEndTime = 0; event Payin(address _owner, uint256 _value, uint256 _endTime); event Payout(address _tokenHolder, uint256 _value); event Reclaimed(uint256 remainingBalance, uint256 _endTime, uint256 _now); event ChangedTreasurer(address treasurer, bool active); /** * @dev Deploy the DividendToken contract and set the owner of the contract */ function DividendToken() public { isTreasurer[owner] = true; } /** * @dev Request payout dividend (claim) (requested by tokenHolder -> pull) * dividends that have not been claimed within 330 days expire and cannot be claimed anymore by the token holder. */ function claimDividend() public returns (bool) { // unclaimed dividend fractions should expire after 330 days and the owner can reclaim that fraction require(dividendEndTime > 0 && dividendEndTime.sub(claimTimeout) > now); updateDividend(msg.sender); uint256 payment = unclaimedDividend[msg.sender]; unclaimedDividend[msg.sender] = 0; msg.sender.transfer(payment); // Trigger payout event Payout(msg.sender, payment); return true; } /** * @dev Transfer dividend (fraction) to new token holder * @param _from address The address of the old token holder * @param _to address The address of the new token holder * @param _value uint256 Number of tokens to transfer */ function transferDividend(address _from, address _to, uint256 _value) internal { updateDividend(_from); updateDividend(_to); uint256 transAmount = unclaimedDividend[_from].mul(_value).div(balanceOf(_from)); unclaimedDividend[_from] = unclaimedDividend[_from].sub(transAmount); unclaimedDividend[_to] = unclaimedDividend[_to].add(transAmount); } /** * @dev Update the dividend of hodler * @param _hodler address The Address of the hodler */ function updateDividend(address _hodler) internal { // last update in previous period -> reset claimable dividend if (lastUpdate[_hodler] < lastDividendIncreaseDate) { unclaimedDividend[_hodler] = calcDividend(_hodler, totalSupply_); lastUpdate[_hodler] = now; } } /** * @dev Get claimable dividend for the hodler * @param _hodler address The Address of the hodler */ function getClaimableDividend(address _hodler) public constant returns (uint256 claimableDividend) { if (lastUpdate[_hodler] < lastDividendIncreaseDate) { return calcDividend(_hodler, totalSupply_); } else { return (unclaimedDividend[_hodler]); } } /** * @dev Overrides transfer method from BasicToken * transfer token for a specified address * @param _to address The address to transfer to. * @param _value uint256 The amount to be transferred. */ function transfer(address _to, uint256 _value) public returns (bool) { transferDividend(msg.sender, _to, _value); // Return from inherited transfer method return super.transfer(_to, _value); } /** * @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 amount of tokens to be transferred */ function transferFrom(address _from, address _to, uint256 _value) public returns (bool) { // Prevent dividend to be claimed twice transferDividend(_from, _to, _value); // Return from inherited transferFrom method return super.transferFrom(_from, _to, _value); } /** * @dev Set / alter treasurer "account". This can be done from owner only * @param _treasurer address Address of the treasurer to create/alter * @param _active bool Flag that shows if the treasurer account is active */ function setTreasurer(address _treasurer, bool _active) public onlyOwner { isTreasurer[_treasurer] = _active; ChangedTreasurer(_treasurer, _active); } /** * @dev Request unclaimed ETH, payback to beneficiary (owner) wallet * dividend payment is possible every 330 days at the earliest - can be later, this allows for some flexibility, * e.g. board meeting had to happen a bit earlier this year than previous year. */ function requestUnclaimed() public onlyOwner { // Send remaining ETH to beneficiary (back to owner) if dividend round is over require(now >= dividendEndTime.sub(claimTimeout)); msg.sender.transfer(this.balance); Reclaimed(this.balance, dividendEndTime, now); } /** * @dev ETH Payin for Treasurer * Only owner or treasurer can do a payin for all token holder. * Owner / treasurer can also increase dividend by calling fallback function multiple times. */ function() public payable { require(isTreasurer[msg.sender]); require(dividendEndTime < now); // pay back unclaimed dividend that might not have been claimed by owner yet if (this.balance > msg.value) { uint256 payout = this.balance.sub(msg.value); owner.transfer(payout); Reclaimed(payout, dividendEndTime, now); } currentDividend = this.balance; // No active dividend cycle found, initialize new round dividendEndTime = now.add(dividendCycleTime); // Trigger payin event Payin(msg.sender, msg.value, dividendEndTime); lastDividendIncreaseDate = now; } /** * @dev calculate the dividend * @param _hodler address * @param _totalSupply uint256 */ function calcDividend(address _hodler, uint256 _totalSupply) public view returns(uint256) { return (currentDividend.mul(balanceOf(_hodler))).div(_totalSupply); } } //File: src/contracts/ico/IcoToken.sol /** * @title ICO token * @version 1.0 * @author Validity Labs AG <[email protected]> */ pragma solidity ^0.4.18; contract IcoToken is MintableToken, PausableToken, DividendToken { string public constant name = "Tend Token"; string public constant symbol = "TND"; uint8 public constant decimals = 18; /** * @dev Constructor of IcoToken that instantiate a new DividendToken */ function IcoToken() public DividendToken() { // token should not be transferrable until after all tokens have been issued paused = true; } } //File: src/contracts/ico/IcoCrowdsale.sol /** * @title IcoCrowdsale * Simple time and capped based crowdsale. * * @version 1.0 * @author Validity Labs AG <[email protected]> */ pragma solidity ^0.4.18; contract IcoCrowdsale is Crowdsale, Ownable { /*** CONSTANTS ***/ // Different levels of caps per allotment uint256 public constant MAX_TOKEN_CAP = 13e6 * 1e18; // 13 million * 1e18 // // Bottom three should add to above uint256 public constant ICO_ENABLERS_CAP = 15e5 * 1e18; // 1.5 million * 1e18 uint256 public constant DEVELOPMENT_TEAM_CAP = 2e6 * 1e18; // 2 million * 1e18 uint256 public constant ICO_TOKEN_CAP = 9.5e6 * 1e18; // 9.5 million * 1e18 uint256 public constant CHF_CENT_PER_TOKEN = 1000; // standard CHF per token rate - in cents - 10 CHF => 1000 CHF cents uint256 public constant MIN_CONTRIBUTION_CHF = 250; uint256 public constant VESTING_CLIFF = 1 years; uint256 public constant VESTING_DURATION = 3 years; // Amount of discounted tokens per discount stage (2 stages total; each being the same amount) uint256 public constant DISCOUNT_TOKEN_AMOUNT_T1 = 3e6 * 1e18; // 3 million * 1e18 uint256 public constant DISCOUNT_TOKEN_AMOUNT_T2 = DISCOUNT_TOKEN_AMOUNT_T1 * 2; // Track tokens depending which stage that the ICO is in uint256 public tokensToMint; // tokens to be minted after confirmation uint256 public tokensMinted; // already minted tokens (maximally = cap) uint256 public icoEnablersTokensMinted; uint256 public developmentTeamTokensMinted; uint256 public minContributionInWei; uint256 public tokenPerWei; uint256 public totalTokensPurchased; bool public capReached; bool public tier1Reached; bool public tier2Reached; address public underwriter; // allow managers to blacklist and confirm contributions by manager accounts // (managers can be set and altered by owner, multiple manager accounts are possible mapping(address => bool) public isManager; // true if addess is not allowed to invest mapping(address => bool) public isBlacklisted; uint256 public confirmationPeriod; bool public confirmationPeriodOver; // can be set by owner to finish confirmation in under 30 days // for convenience we store vesting wallets address[] public vestingWallets; uint256 public investmentIdLastAttemptedToSettle; struct Payment { address investor; address beneficiary; uint256 weiAmount; uint256 tokenAmount; bool confirmed; bool attemptedSettlement; bool completedSettlement; } Payment[] public investments; /*** EVENTS ***/ event ChangedInvestorBlacklisting(address investor, bool blacklisted); event ChangedManager(address manager, bool active); event ChangedInvestmentConfirmation(uint256 investmentId, address investor, bool confirmed); /*** MODIFIERS ***/ modifier onlyUnderwriter() { require(msg.sender == underwriter); _; } modifier onlyManager() { require(isManager[msg.sender]); _; } modifier onlyNoneZero(address _to, uint256 _amount) { require(_to != address(0)); require(_amount > 0); _; } modifier onlyConfirmPayment() { require(now > endTime && now <= endTime.add(confirmationPeriod)); require(!confirmationPeriodOver); _; } modifier onlyConfirmationOver() { require(confirmationPeriodOver || now > endTime.add(confirmationPeriod)); _; } /** * @dev Deploy capped ico crowdsale contract * @param _startTime uint256 Start time of the crowdsale * @param _endTime uint256 End time of the crowdsale * @param _rateChfPerEth uint256 CHF per ETH rate * @param _wallet address Wallet address of the crowdsale * @param _confirmationPeriodDays uint256 Confirmation period in days * @param _underwriter address of the underwriter */ function IcoCrowdsale( uint256 _startTime, uint256 _endTime, uint256 _rateChfPerEth, address _wallet, uint256 _confirmationPeriodDays, address _underwriter ) public Crowdsale(_startTime, _endTime, _rateChfPerEth, _wallet) { require(MAX_TOKEN_CAP == ICO_ENABLERS_CAP.add(ICO_TOKEN_CAP).add(DEVELOPMENT_TEAM_CAP)); require(_underwriter != address(0)); setManager(msg.sender, true); tokenPerWei = (_rateChfPerEth.mul(1e2)).div(CHF_CENT_PER_TOKEN); minContributionInWei = (MIN_CONTRIBUTION_CHF.mul(1e18)).div(_rateChfPerEth); confirmationPeriod = _confirmationPeriodDays * 1 days; underwriter = _underwriter; } /** * @dev Set / alter manager / blacklister account. This can be done from owner only * @param _manager address address of the manager to create/alter * @param _active bool flag that shows if the manager account is active */ function setManager(address _manager, bool _active) public onlyOwner { isManager[_manager] = _active; ChangedManager(_manager, _active); } /** * @dev blacklist investor from participating in the crowdsale * @param _investor address address of the investor to disallowed participation */ function blackListInvestor(address _investor, bool _active) public onlyManager { isBlacklisted[_investor] = _active; ChangedInvestorBlacklisting(_investor, _active); } /** * @dev override (not extend! because we only issues tokens after final KYC confirm phase) * core functionality by blacklist check and registration of payment * @param _beneficiary address address of the beneficiary to receive tokens after they have been confirmed */ function buyTokens(address _beneficiary) public payable { require(_beneficiary != address(0)); require(validPurchase()); require(!isBlacklisted[msg.sender]); uint256 weiAmount = msg.value; uint256 tokenAmount; uint256 purchasedTokens = weiAmount.mul(tokenPerWei); uint256 tempTotalTokensPurchased = totalTokensPurchased.add(purchasedTokens); uint256 overflowTokens; uint256 overflowTokens2; // 20% discount bonus amount uint256 tier1BonusTokens; // 10% discount bonus amount uint256 tier2BonusTokens; // tier 1 20% discount - 1st 3 million tokens purchased if (!tier1Reached) { // tx tokens overflowed into next tier 2 - 10% discount - mark tier1Reached! else all tokens are tier 1 discounted if (tempTotalTokensPurchased > DISCOUNT_TOKEN_AMOUNT_T1) { tier1Reached = true; overflowTokens = tempTotalTokensPurchased.sub(DISCOUNT_TOKEN_AMOUNT_T1); tier1BonusTokens = purchasedTokens.sub(overflowTokens); // tx tokens did not overflow into next tier 2 (10% discount) } else { tier1BonusTokens = purchasedTokens; } //apply discount tier1BonusTokens = tier1BonusTokens.mul(10).div(8); tokenAmount = tokenAmount.add(tier1BonusTokens); } // tier 2 10% discount - 2nd 3 million tokens purchased if (tier1Reached && !tier2Reached) { // tx tokens overflowed into next tier 3 - 0% - marked tier2Reached! else all tokens are tier 2 discounted if (tempTotalTokensPurchased > DISCOUNT_TOKEN_AMOUNT_T2) { tier2Reached = true; overflowTokens2 = tempTotalTokensPurchased.sub(DISCOUNT_TOKEN_AMOUNT_T2); tier2BonusTokens = purchasedTokens.sub(overflowTokens2); // tx tokens did not overflow into next tier 3 (tier 3 == no discount) } else { // tokens overflowed from tier1 else this tx started in tier2 if (overflowTokens > 0) { tier2BonusTokens = overflowTokens; } else { tier2BonusTokens = purchasedTokens; } } // apply discount for tier 2 tokens tier2BonusTokens = tier2BonusTokens.mul(10).div(9); tokenAmount = tokenAmount.add(tier2BonusTokens).add(overflowTokens2); } // this triggers when both tier 1 and tier 2 discounted tokens have be filled - but ONLY afterwards, not if the flags got set during the same tx // aka this is tier 3 if (tier2Reached && tier1Reached && tier2BonusTokens == 0) { tokenAmount = purchasedTokens; } /*** Record & update state variables ***/ // Tracks purchased tokens for 2 tiers of discounts totalTokensPurchased = totalTokensPurchased.add(purchasedTokens); // Tracks total tokens pending to be minted - this includes presale tokens tokensToMint = tokensToMint.add(tokenAmount); weiRaised = weiRaised.add(weiAmount); TokenPurchase(msg.sender, _beneficiary, weiAmount, tokenAmount); // register payment so that later on it can be confirmed (and tokens issued and Ether paid out) Payment memory newPayment = Payment(msg.sender, _beneficiary, weiAmount, tokenAmount, false, false, false); investments.push(newPayment); } /** * @dev confirms payment * @param _investmentId uint256 uint256 of the investment id to confirm */ function confirmPayment(uint256 _investmentId) public onlyManager onlyConfirmPayment { investments[_investmentId].confirmed = true; ChangedInvestmentConfirmation(_investmentId, investments[_investmentId].investor, true); } /** * @dev confirms payments via a batch method * @param _investmentIds uint256[] array of uint256 of the investment ids to confirm */ function batchConfirmPayments(uint256[] _investmentIds) public onlyManager onlyConfirmPayment { uint256 investmentId; for (uint256 c; c < _investmentIds.length; c = c.add(1)) { investmentId = _investmentIds[c]; // gas optimization confirmPayment(investmentId); } } /** * @dev unconfirms payment made via investment id * @param _investmentId uint256 uint256 of the investment to unconfirm */ function unConfirmPayment(uint256 _investmentId) public onlyManager onlyConfirmPayment { investments[_investmentId].confirmed = false; ChangedInvestmentConfirmation(_investmentId, investments[_investmentId].investor, false); } /** * @dev allows contract owner to mint tokens for presale or non-ETH contributions in batches * @param _toList address[] array of the beneficiaries to receive tokens * @param _tokenList uint256[] array of the token amounts to mint for the corresponding users */ function batchMintTokenDirect(address[] _toList, uint256[] _tokenList) public onlyOwner { require(_toList.length == _tokenList.length); for (uint256 i; i < _toList.length; i = i.add(1)) { mintTokenDirect(_toList[i], _tokenList[i]); } } /** * @dev allows contract owner to mint tokens for presale or non-ETH contributions * @param _to address of the beneficiary to receive tokens * @param _tokens uint256 of the token amount to mint */ function mintTokenDirect(address _to, uint256 _tokens) public onlyOwner { require(tokensToMint.add(_tokens) <= ICO_TOKEN_CAP); tokensToMint = tokensToMint.add(_tokens); // register payment so that later on it can be confirmed (and tokens issued and Ether paid out) Payment memory newPayment = Payment(address(0), _to, 0, _tokens, false, false, false); investments.push(newPayment); TokenPurchase(msg.sender, _to, 0, _tokens); } /** * @dev allows contract owner to mint tokens for ICO enablers respecting the ICO_ENABLERS_CAP (no vesting) * @param _to address for beneficiary * @param _tokens uint256 token amount to mint */ function mintIcoEnablersTokens(address _to, uint256 _tokens) public onlyOwner onlyNoneZero(_to, _tokens) { require(icoEnablersTokensMinted.add(_tokens) <= ICO_ENABLERS_CAP); token.mint(_to, _tokens); icoEnablersTokensMinted = icoEnablersTokensMinted.add(_tokens); } /** * @dev allows contract owner to mint team tokens per DEVELOPMENT_TEAM_CAP and transfer to the development team's wallet (yes vesting) * @param _to address for beneficiary * @param _tokens uint256 token amount to mint */ function mintDevelopmentTeamTokens(address _to, uint256 _tokens) public onlyOwner onlyNoneZero(_to, _tokens) { require(developmentTeamTokensMinted.add(_tokens) <= DEVELOPMENT_TEAM_CAP); developmentTeamTokensMinted = developmentTeamTokensMinted.add(_tokens); TokenVesting newVault = new TokenVesting(_to, now, VESTING_CLIFF, VESTING_DURATION, false); vestingWallets.push(address(newVault)); // for convenience we keep them in storage so that they are easily accessible via MEW or etherscan token.mint(address(newVault), _tokens); } /** * @dev returns number of elements in the vestinWallets array */ function getVestingWalletLength() public view returns (uint256) { return vestingWallets.length; } /** * @dev set final the confirmation period */ function finalizeConfirmationPeriod() public onlyOwner onlyConfirmPayment { confirmationPeriodOver = true; } /** * @dev settlement of investment made via investment id * @param _investmentId uint256 uint256 being the investment id */ function settleInvestment(uint256 _investmentId) public onlyConfirmationOver { Payment storage p = investments[_investmentId]; // investment should not be settled already (prevent double token issueing or repayment) require(!p.completedSettlement); // investments have to be processed in right order // unless we're at first investment, the previous has needs to have undergone an attempted settlement require(_investmentId == 0 || investments[_investmentId.sub(1)].attemptedSettlement); p.attemptedSettlement = true; // just so that we can see which one we attempted last time and can continue with next investmentIdLastAttemptedToSettle = _investmentId; if (p.confirmed && !capReached) { // if confirmed -> issue tokens, send ETH to wallet and complete settlement // calculate number of tokens to be issued to investor uint256 tokens = p.tokenAmount; // check to see if this purchase sets it over the crowdsale token cap // if so, refund if (tokensMinted.add(tokens) > ICO_TOKEN_CAP) { capReached = true; if (p.weiAmount > 0) { p.investor.send(p.weiAmount); // does not throw (otherwise we'd block all further settlements) } } else { tokensToMint = tokensToMint.sub(tokens); tokensMinted = tokensMinted.add(tokens); // mint tokens for beneficiary token.mint(p.beneficiary, tokens); if (p.weiAmount > 0) { // send Ether to project wallet (throws if wallet throws) wallet.transfer(p.weiAmount); } } p.completedSettlement = true; } else { // if not confirmed -> reimburse ETH or if fiat (presale) investor: do nothing // only complete settlement if investor got their money back // (does not throw (as .transfer would) // otherwise we would block settlement process of all following investments) if (p.investor != address(0) && p.weiAmount > 0) { if (p.investor.send(p.weiAmount)) { p.completedSettlement = true; } } } } /** * @dev allows the batch settlement of investments made * @param _investmentIds uint256[] array of uint256 of investment ids */ function batchSettleInvestments(uint256[] _investmentIds) public { for (uint256 c; c < _investmentIds.length; c = c.add(1)) { settleInvestment(_investmentIds[c]); } } /** * @dev allows contract owner to finalize the ICO, unpause tokens, set treasurer, finish minting, and transfer ownship of the token contract */ function finalize() public onlyUnderwriter onlyConfirmationOver { Pausable(token).unpause(); // this crowdsale also should not be treasurer of the token anymore IcoToken(token).setTreasurer(this, false); // do not allow new owner to mint further tokens MintableToken(token).finishMinting(); // until now the owner of the token is this crowdsale contract // in order for a human owner to make use of the tokens onlyOwner functions // we need to transfer the ownership // in the end the owner of this crowdsale will also be the owner of the token Ownable(token).transferOwnership(owner); } /** * @dev Create new instance of ico token contract */ function createTokenContract() internal returns (MintableToken) { return new IcoToken(); } /** * @dev extend base functionality with min investment amount */ function validPurchase() internal view returns (bool) { // minimal investment: 250 CHF (represented in wei) require (msg.value >= minContributionInWei); return super.validPurchase(); } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
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Contract Creation Code
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Swarm Source
bzzr://18fdb849b9fa21f51d67023d73641ed241973d766e2498507ba0c979a19a51ff
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