/** *Submitted for verification at Etherscan.io on 2017-06-16 */ pragma solidity 0.4.11; /** * @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() { if (msg.sender != owner) { throw; } _; } /** * @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 Authorizable * @dev Allows to authorize access to certain function calls * * ABI * [{"constant":true,"inputs":[{"name":"authorizerIndex","type":"uint256"}],"name":"getAuthorizer","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_addr","type":"address"}],"name":"addAuthorized","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_addr","type":"address"}],"name":"isAuthorized","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"inputs":[],"payable":false,"type":"constructor"}] */ contract Authorizable { address[] authorizers; mapping(address => uint) authorizerIndex; /** * @dev Throws if called by any account tat is not authorized. */ modifier onlyAuthorized { require(isAuthorized(msg.sender)); _; } /** * @dev Contructor that authorizes the msg.sender. */ function Authorizable() { authorizers.length = 2; authorizers[1] = msg.sender; authorizerIndex[msg.sender] = 1; } /** * @dev Function to get a specific authorizer * @param authorizerIndex index of the authorizer to be retrieved. * @return The address of the authorizer. */ function getAuthorizer(uint authorizerIndex) external constant returns(address) { return address(authorizers[authorizerIndex + 1]); } /** * @dev Function to check if an address is authorized * @param _addr the address to check if it is authorized. * @return boolean flag if address is authorized. */ function isAuthorized(address _addr) constant returns(bool) { return authorizerIndex[_addr] > 0; } /** * @dev Function to add a new authorizer * @param _addr the address to add as a new authorizer. */ function addAuthorized(address _addr) external onlyAuthorized { authorizerIndex[_addr] = authorizers.length; authorizers.length++; authorizers[authorizers.length - 1] = _addr; } } /** * @title ExchangeRate * @dev Allows updating and retrieveing of Conversion Rates for PAY tokens * * ABI * [{"constant":false,"inputs":[{"name":"_symbol","type":"string"},{"name":"_rate","type":"uint256"}],"name":"updateRate","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"data","type":"uint256[]"}],"name":"updateRates","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_symbol","type":"string"}],"name":"getRate","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"","type":"bytes32"}],"name":"rates","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"type":"function"},{"anonymous":false,"inputs":[{"indexed":false,"name":"timestamp","type":"uint256"},{"indexed":false,"name":"symbol","type":"bytes32"},{"indexed":false,"name":"rate","type":"uint256"}],"name":"RateUpdated","type":"event"}] */ contract ExchangeRate is Ownable { event RateUpdated(uint timestamp, bytes32 symbol, uint rate); mapping(bytes32 => uint) public rates; /** * @dev Allows the current owner to update a single rate. * @param _symbol The symbol to be updated. * @param _rate the rate for the symbol. */ function updateRate(string _symbol, uint _rate) public onlyOwner { rates[sha3(_symbol)] = _rate; RateUpdated(now, sha3(_symbol), _rate); } /** * @dev Allows the current owner to update multiple rates. * @param data an array that alternates sha3 hashes of the symbol and the corresponding rate . */ function updateRates(uint[] data) public onlyOwner { if (data.length % 2 > 0) throw; uint i = 0; while (i < data.length / 2) { bytes32 symbol = bytes32(data[i * 2]); uint rate = data[i * 2 + 1]; rates[symbol] = rate; RateUpdated(now, symbol, rate); i++; } } /** * @dev Allows the anyone to read the current rate. * @param _symbol the symbol to be retrieved. */ function getRate(string _symbol) public constant returns(uint) { return rates[sha3(_symbol)]; } } /** * Math operations with safety checks */ library SafeMath { function mul(uint a, uint b) internal returns (uint) { uint c = a * b; assert(a == 0 || c / a == b); return c; } function div(uint a, uint b) internal returns (uint) { // assert(b > 0); // Solidity automatically throws when dividing by 0 uint c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } function sub(uint a, uint b) internal returns (uint) { assert(b <= a); return a - b; } function add(uint a, uint b) internal returns (uint) { uint c = a + b; assert(c >= a); return c; } function max64(uint64 a, uint64 b) internal constant returns (uint64) { return a >= b ? a : b; } function min64(uint64 a, uint64 b) internal constant returns (uint64) { return a < b ? a : b; } function max256(uint256 a, uint256 b) internal constant returns (uint256) { return a >= b ? a : b; } function min256(uint256 a, uint256 b) internal constant returns (uint256) { return a < b ? a : b; } function assert(bool assertion) internal { if (!assertion) { throw; } } } /** * @title ERC20Basic * @dev Simpler version of ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 */ contract ERC20Basic { uint public totalSupply; function balanceOf(address who) constant returns (uint); function transfer(address to, uint value); event Transfer(address indexed from, address indexed to, uint value); } /** * @title ERC20 interface * @dev see https://github.com/ethereum/EIPs/issues/20 */ contract ERC20 is ERC20Basic { function allowance(address owner, address spender) constant returns (uint); function transferFrom(address from, address to, uint value); function approve(address spender, uint value); event Approval(address indexed owner, address indexed spender, uint value); } /** * @title Basic token * @dev Basic version of StandardToken, with no allowances. */ contract BasicToken is ERC20Basic { using SafeMath for uint; mapping(address => uint) balances; /** * @dev Fix for the ERC20 short address attack. */ modifier onlyPayloadSize(uint size) { if(msg.data.length < size + 4) { throw; } _; } /** * @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, uint _value) onlyPayloadSize(2 * 32) { balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); Transfer(msg.sender, _to, _value); } /** * @dev Gets the balance of the specified address. * @param _owner The address to query the the balance of. * @return An uint representing the amount owned by the passed address. */ function balanceOf(address _owner) constant returns (uint balance) { return balances[_owner]; } } /** * @title Standard ERC20 token * * @dev Implemantation of the basic standart 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 BasicToken, ERC20 { mapping (address => mapping (address => uint)) 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 uint the amout of tokens to be transfered */ function transferFrom(address _from, address _to, uint _value) onlyPayloadSize(3 * 32) { var _allowance = allowed[_from][msg.sender]; // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met // if (_value > _allowance) throw; balances[_to] = balances[_to].add(_value); balances[_from] = balances[_from].sub(_value); allowed[_from][msg.sender] = _allowance.sub(_value); Transfer(_from, _to, _value); } /** * @dev Aprove the passed address to spend the specified amount of tokens on beahlf 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, uint _value) { // 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 if ((_value != 0) && (allowed[msg.sender][_spender] != 0)) throw; allowed[msg.sender][_spender] = _value; Approval(msg.sender, _spender, _value); } /** * @dev Function to check the amount of tokens than 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 uint specifing the amount of tokens still avaible for the spender. */ function allowance(address _owner, address _spender) constant returns (uint remaining) { return allowed[_owner][_spender]; } } /** * @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, uint value); event MintFinished(); bool public mintingFinished = false; uint public totalSupply = 0; modifier canMint() { if(mintingFinished) throw; _; } /** * @dev Function to mint tokens * @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, uint _amount) onlyOwner canMint returns (bool) { totalSupply = totalSupply.add(_amount); balances[_to] = balances[_to].add(_amount); Mint(_to, _amount); return true; } /** * @dev Function to stop minting new tokens. * @return True if the operation was successful. */ function finishMinting() onlyOwner returns (bool) { mintingFinished = true; MintFinished(); return true; } } /** * @title PayToken * @dev The main PAY token contract * * ABI * [{"constant":true,"inputs":[],"name":"mintingFinished","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"startTrading","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_amount","type":"uint256"}],"name":"mint","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"tradingStarted","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"finishMinting","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"type":"function"},{"anonymous":false,"inputs":[{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[],"name":"MintFinished","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Transfer","type":"event"}] */ contract PayToken is MintableToken { string public name = "TenX Pay Token"; string public symbol = "PAY"; uint public decimals = 18; bool public tradingStarted = false; /** * @dev modifier that throws if trading has not started yet */ modifier hasStartedTrading() { require(tradingStarted); _; } /** * @dev Allows the owner to enable the trading. This can not be undone */ function startTrading() onlyOwner { tradingStarted = true; } /** * @dev Allows anyone to transfer the PAY tokens once trading has started * @param _to the recipient address of the tokens. * @param _value number of tokens to be transfered. */ function transfer(address _to, uint _value) hasStartedTrading { super.transfer(_to, _value); } /** * @dev Allows anyone to transfer the PAY tokens once trading has started * @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 uint the amout of tokens to be transfered */ function transferFrom(address _from, address _to, uint _value) hasStartedTrading { super.transferFrom(_from, _to, _value); } } /** * @title MainSale * @dev The main PAY token sale contract * * ABI * [{"constant":false,"inputs":[{"name":"_multisigVault","type":"address"}],"name":"setMultisigVault","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"authorizerIndex","type":"uint256"}],"name":"getAuthorizer","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"exchangeRate","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"altDeposits","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"recipient","type":"address"},{"name":"tokens","type":"uint256"}],"name":"authorizedCreateTokens","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"finishMinting","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_exchangeRate","type":"address"}],"name":"setExchangeRate","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_token","type":"address"}],"name":"retrieveTokens","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"totalAltDeposits","type":"uint256"}],"name":"setAltDeposit","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"start","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"recipient","type":"address"}],"name":"createTokens","outputs":[],"payable":true,"type":"function"},{"constant":false,"inputs":[{"name":"_addr","type":"address"}],"name":"addAuthorized","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"multisigVault","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_hardcap","type":"uint256"}],"name":"setHardCap","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_start","type":"uint256"}],"name":"setStart","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"token","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_addr","type":"address"}],"name":"isAuthorized","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"payable":true,"type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"recipient","type":"address"},{"indexed":false,"name":"ether_amount","type":"uint256"},{"indexed":false,"name":"pay_amount","type":"uint256"},{"indexed":false,"name":"exchangerate","type":"uint256"}],"name":"TokenSold","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"recipient","type":"address"},{"indexed":false,"name":"pay_amount","type":"uint256"}],"name":"AuthorizedCreate","type":"event"},{"anonymous":false,"inputs":[],"name":"MainSaleClosed","type":"event"}] */ contract MainSale is Ownable, Authorizable { using SafeMath for uint; event TokenSold(address recipient, uint ether_amount, uint pay_amount, uint exchangerate); event AuthorizedCreate(address recipient, uint pay_amount); event MainSaleClosed(); PayToken public token = new PayToken(); address public multisigVault; uint hardcap = 200000 ether; ExchangeRate public exchangeRate; uint public altDeposits = 0; uint public start = 1498302000; //new Date("Jun 24 2017 11:00:00 GMT").getTime() / 1000 /** * @dev modifier to allow token creation only when the sale IS ON */ modifier saleIsOn() { require(now > start && now < start + 28 days); _; } /** * @dev modifier to allow token creation only when the hardcap has not been reached */ modifier isUnderHardCap() { require(multisigVault.balance + altDeposits <= hardcap); _; } /** * @dev Allows anyone to create tokens by depositing ether. * @param recipient the recipient to receive tokens. */ function createTokens(address recipient) public isUnderHardCap saleIsOn payable { uint rate = exchangeRate.getRate("ETH"); uint tokens = rate.mul(msg.value).div(1 ether); token.mint(recipient, tokens); require(multisigVault.send(msg.value)); TokenSold(recipient, msg.value, tokens, rate); } /** * @dev Allows to set the toal alt deposit measured in ETH to make sure the hardcap includes other deposits * @param totalAltDeposits total amount ETH equivalent */ function setAltDeposit(uint totalAltDeposits) public onlyOwner { altDeposits = totalAltDeposits; } /** * @dev Allows authorized acces to create tokens. This is used for Bitcoin and ERC20 deposits * @param recipient the recipient to receive tokens. * @param tokens number of tokens to be created. */ function authorizedCreateTokens(address recipient, uint tokens) public onlyAuthorized { token.mint(recipient, tokens); AuthorizedCreate(recipient, tokens); } /** * @dev Allows the owner to set the hardcap. * @param _hardcap the new hardcap */ function setHardCap(uint _hardcap) public onlyOwner { hardcap = _hardcap; } /** * @dev Allows the owner to set the starting time. * @param _start the new _start */ function setStart(uint _start) public onlyOwner { start = _start; } /** * @dev Allows the owner to set the multisig contract. * @param _multisigVault the multisig contract address */ function setMultisigVault(address _multisigVault) public onlyOwner { if (_multisigVault != address(0)) { multisigVault = _multisigVault; } } /** * @dev Allows the owner to set the exchangerate contract. * @param _exchangeRate the exchangerate address */ function setExchangeRate(address _exchangeRate) public onlyOwner { exchangeRate = ExchangeRate(_exchangeRate); } /** * @dev Allows the owner to finish the minting. This will create the * restricted tokens and then close the minting. * Then the ownership of the PAY token contract is transfered * to this owner. */ function finishMinting() public onlyOwner { uint issuedTokenSupply = token.totalSupply(); uint restrictedTokens = issuedTokenSupply.mul(49).div(51); token.mint(multisigVault, restrictedTokens); token.finishMinting(); token.transferOwnership(owner); MainSaleClosed(); } /** * @dev Allows the owner to transfer ERC20 tokens to the multi sig vault * @param _token the contract address of the ERC20 contract */ function retrieveTokens(address _token) public onlyOwner { ERC20 token = ERC20(_token); token.transfer(multisigVault, token.balanceOf(this)); } /** * @dev Fallback function which receives ether and created the appropriate number of tokens for the * msg.sender. */ function() external payable { createTokens(msg.sender); } }