Contract Diff Checker

Contract Source Code:

pragma solidity ^0.6.0;

contract Context {
    constructor () internal {}

    function _msgSender() internal view virtual returns (address payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

pragma solidity ^0.6.0;

import "./Ownable.sol";
import "./Token.sol";
import "./SafeMath.sol";

contract Crowdsale is Ownable {
    using SafeMath for uint256;

    // wallets
    address payable public constant OWNER_WALLET = 0x6982880B46aF48Cf97044a93E783Dcf8F4adDfC2;
    address payable public constant TOKEN_RECEIVE_WALLET = 0xDcAcafc64f8f56452321cdcEc73f1A330E013181;
    address payable public constant ETH_RECEIVE_WALLET = 0x79dFAdaCe453853618C6F05E41538BE53E9E3EED;
    address payable public constant DEV_WALLET = 0x2F2fEF2bf0bC0E2A0B4d4019eD21e3C534eD2E9B;
    address payable public constant PROMOTER_WALLET = 0x4c4D4254f10ED100C5f16b9d7894977035fB8CfE;

    // global arguments
    Token public token;
    bool private _reentrancyLock = false;
    uint256 public rate = 385;
    uint256 private _cap = 70000000e10; // 70M
    uint256 public weiRaised = 0;
    uint256 private devWei = 65e17;
    uint256 private weiReceived = 0;
    uint256 private promoterTokens = 5999000e10;
    uint256 private ownerTokens = 3997000e10;

    constructor(address _token) public {
        token = Token(_token);
        token._mint(TOKEN_RECEIVE_WALLET, ownerTokens);
        token._mint(PROMOTER_WALLET, promoterTokens);
    }

    /*
    * @dev Reentracy security modifier
    */
    modifier nonReentrant() {
        require(!_reentrancyLock, "Reentrancy lock");
        _reentrancyLock = true;
        _;
        _reentrancyLock = false;
    }

    function cap() public view returns (uint256) {
        return _cap;
    }

    function buyTokens(address _beneficiary) public nonReentrant payable {
        uint256 weiAmount = msg.value;
        require(weiAmount > 1e16, "Minimum transaction"); // > 0.01 ETH
        require(_beneficiary != address(0), "Zero address");

        uint256 tokens = _calculateTokens(weiAmount);
        uint256 afterSend = token.totalSupply().add(tokens);
        require(afterSend < cap(), "Cap reached");

        _appendContribution(_beneficiary, tokens);
        _payToOwners(weiAmount);
    }

    fallback() payable external {
        buyTokens(msg.sender);
    }

    receive() payable external {
        buyTokens(msg.sender);
    }

    /*
    * @dev Distribution to developers and owners
    */
    function _payToOwners(uint256 weiSent) internal {
        uint256 remain = 0;
        weiRaised = weiRaised.add(weiSent);
        if (weiRaised < devWei) {
            DEV_WALLET.transfer(weiSent);
            weiReceived = weiReceived.add(weiSent);
        } else {
            // raised for dev is more than required
            // if received is less than needed
            if (weiReceived < devWei) {
                remain = devWei.sub(weiReceived);
                DEV_WALLET.transfer(remain);
                weiReceived = weiReceived.add(weiSent);
                uint256 toOwner = weiSent.sub(remain);
                ETH_RECEIVE_WALLET.transfer(toOwner);
            } else {
                ETH_RECEIVE_WALLET.transfer(weiSent);
            }
        }
    }

    /*
    * @dev Internal token calculation function
    * @param {_weiAmount} Amount in wei
    */
    function _calculateTokens(uint256 _weiAmount) internal view returns (uint256) {
        uint256 tokens = _weiAmount.mul(rate).div(1e8);
        return tokens;
    }

    /*
    * @dev Internal bonus calculation and minting function
    * @param {_beneficiary} Who will get tokens
    * @param {_tokens} Amount of tokens
    * @return Success
    */
    function _appendContribution(address _beneficiary, uint256 _tokensToMint) internal returns (bool) {
        token._mint(_beneficiary, _tokensToMint);
        return true;
    }

    function withdraw() public onlyOwner returns (bool) {
        ETH_RECEIVE_WALLET.transfer(address(this).balance);
        return true;
    }
}

pragma solidity ^0.6.0;

interface IERC20 {
    function totalSupply() external view returns (uint256);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address recipient, uint256 amount) external returns (bool);
    function allowance(address owner, address spender) external view returns (uint256);
    function approve(address spender, uint256 amount) external returns (bool);
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

pragma solidity ^0.6.0;

import "./Context.sol";

contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor () internal {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    function owner() public view returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

pragma solidity ^0.6.0;

library SafeMath {
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;
        return c;
    }

    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");
        return c;
    }

    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        return c;
    }

    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

pragma solidity ^0.6.0;

import "./Context.sol";
import "./IERC20.sol";
import "./SafeMath.sol";
import "./Ownable.sol";

contract Token is Context, IERC20, Ownable {
    using SafeMath for uint256;

    mapping (address => uint256) private _balances;
    mapping (address => mapping (address => uint256)) private _allowances;
    uint256 public _totalSupply;
    string private _name = "TESLA TECHNOLOGIES TOKEN";
    string private _symbol = "3T";
    uint8 private _decimals = 10;

    function name() public view returns (string memory) {
        return _name;
    }

    function totalSupply() public view override returns (uint256) {
        return _totalSupply;
    }

    function symbol() public view returns (string memory) {
        return _symbol;
    }

    function decimals() public view returns (uint8) {
        return _decimals;
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _balances[account];
    }

    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }

    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }

    function _transfer(address sender, address recipient, uint256 amount) internal virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
    }

    function _mint(address account, uint256 amount) external virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _totalSupply = _totalSupply.add(amount);
        _balances[account] = _balances[account].add(amount);
        emit Transfer(address(0), account, amount);
    }

    function _approve(address owner, address spender, uint256 amount) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }
}