// Contract address: 0xc0950ee7568e1ab93c6784ddcaa9b590239eeec9 // Contract name: PrimeToken // Etherscan link: https://etherscan.io/address/0xc0950ee7568e1ab93c6784ddcaa9b590239eeec9#code pragma solidity 0.4.19; // File: src/zeppelin/math/SafeMath.sol /** * @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: src/zeppelin/token/ERC20Basic.sol /** * @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: src/zeppelin/token/BasicToken.sol /** * @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: src/zeppelin/token/ERC20.sol /** * @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: src/zeppelin/token/StandardToken.sol /** * @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: src/PrimeToken.sol // ---------------------------------------------------------------------------- // PRIME token contract // // Symbol : PRIME // Name : PRIME PRETGE // Total supply: 250000000 // Decimals : 18 // // // By using this smart-contract you confirm to have read and // agree to the terms and conditions set herein: http://primeshipping.io/legal // ---------------------------------------------------------------------------- contract PrimeToken is StandardToken { string public constant name = 'PRIME PRETGE'; string public constant symbol = 'PRIME'; uint256 public constant decimals = 18; uint256 public constant tokenCreationCap = 250000000 * 10 ** decimals; string public constant LEGAL = 'By using this smart-contract you confirm to have read and agree to the terms and conditions set herein: http://primeshipping.io/legal'; address public wallet; address public owner; bool public active = true; uint256 public oneTokenInWei = 50000000000000000; uint256 public minimumAllowedWei = 5000000000000000000; modifier onlyOwner { if (owner != msg.sender) { revert(); } _; } modifier onlyActive { if (!active) { revert(); } _; } event Mint(address indexed to, uint256 amount); event MintFinished(); /** * 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 PrimeToken(address _wallet) public { wallet = _wallet; owner = msg.sender; } function() payable public { createTokens(); } /** * @param _to Target address. * @param _amount Amount of PRIME tokens, _NOT_ multiplied to decimals. */ function mintTokens(address _to, uint256 _amount) external onlyOwner { uint256 tokens = _amount.mul(10 ** decimals); uint256 checkedSupply = totalSupply_.add(tokens); require(tokenCreationCap > checkedSupply); balances[_to] += tokens; totalSupply_ = checkedSupply; Mint(_to, tokens); Transfer(address(0), _to, tokens); } function withdraw() external onlyOwner { wallet.transfer(this.balance); } function finalize() external onlyOwner { active = false; MintFinished(); } /** * Sets price in wei per 1 PRIME token. */ function setTokenPriceInWei(uint256 _oneTokenInWei) external onlyOwner { oneTokenInWei = _oneTokenInWei; } function createTokens() internal onlyActive { require(msg.value >= minimumAllowedWei); uint256 multiplier = 10 ** decimals; uint256 tokens = msg.value.mul(multiplier).div(oneTokenInWei); uint256 checkedSupply = totalSupply_.add(tokens); require(tokenCreationCap > checkedSupply); balances[msg.sender] += tokens; totalSupply_ = checkedSupply; Mint(msg.sender, tokens); Transfer(address(0), msg.sender, tokens); TokenPurchase( msg.sender, msg.sender, msg.value, tokens ); } function setMinimumAllowedWei(uint256 _wei) external onlyOwner { minimumAllowedWei = _wei; } }
v0.4.19