Contract

Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

•  contract ERC20
•    - function totalSupply()
•    - function balanceOf(address _owner)
•    - function transfer(address _to, uint25 ...
•    - function transferFrom(address _from, ...
•    - function approve(address _spender, ui ...
•    - function allowance(address _owner, ad ...
•  contract LegendsCrowdfund *
•    - function LegendsCrowdfund(address _ex ...
•    - function setTokenContract(LegendsToke ...
•    - function purchaseMembership(address s ...
•  contract LegendsToken is ERC20
•    - function LegendsToken(address _legend ...
•    - function addTokens(address recipient, ...
•    - function totalSupply()
•    - function balanceOf(address _owner)
•    - function transfer(address _to, uint25 ...
•    - function transferFrom(address _from, ...
•    - function approve(address _spender, ui ...
•    - function allowance(address _owner, ad ...
•    - function ()
•    - function purchaseMembership(address r ...

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2017-02-23
*/

pragma solidity ^0.4.9;


/***
 * VIP Token and Crowdfunding contracts.
 */


/**
 * @title ERC20
 */
contract ERC20 {
    function totalSupply() constant returns (uint256 totalSupply);
    function balanceOf(address _owner) constant returns (uint256 balance);
    function transfer(address _to, uint256 _value) returns (bool success);
    function transferFrom(address _from, address _to, uint256 _value) returns (bool success);
    function approve(address _spender, uint256 _value) returns (bool success);
    function allowance(address _owner, address _spender) constant returns (uint256 remaining);

    event Transfer(address indexed _from, address indexed _to, uint256 _value);
    event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}

/**
 * @title LegendsCrowdfund
 */
contract LegendsCrowdfund {

    address public creator;
    address public exitAddress;

    uint public start;
    uint public limitVIP;

    LegendsToken public legendsToken;

    mapping (address => uint) public recipientETH;
    mapping (address => uint) public recipientVIP;

    uint public totalETH;
    uint public totalVIP;

    event VIPPurchase(address indexed sender, address indexed recipient, uint ETH, uint VIP);

    modifier saleActive() {
        if (address(legendsToken) == 0) {
            throw;
        }
        if (block.timestamp < start) {
            throw;
        }
        _;
    }

    modifier hasValue() {
        if (msg.value == 0) {
            throw;
        }
        _;
    }

    modifier recipientIsValid(address recipient) {
        if (recipient == 0 || recipient == address(this)) {
            throw;
        }
        _;
    }

    modifier isCreator() {
        if (msg.sender != creator) {
            throw;
        }
        _;
    }

    modifier tokenContractNotSet() {
        if (address(legendsToken) != 0) {
            throw;
        }
        _;
    }

    /**
     * @dev Constructor.
     * @param _exitAddress Address that all ETH should be forwarded to.
     * @param _start Timestamp of when the crowdsale will start.
     * @param _limitVIP Maximum amount of VIP that can be allocated in total. Denominated in wei.
     */
    function LegendsCrowdfund(address _exitAddress, uint _start, uint _limitVIP) {
        creator = msg.sender;
        exitAddress = _exitAddress;
        start = _start;
        limitVIP = _limitVIP;
    }

    /**
     * @dev Set the address of the token contract. Must be called by creator of this. Can only be set once.
     * @param _legendsToken Address of the token contract.
     */
    function setTokenContract(LegendsToken _legendsToken) external isCreator tokenContractNotSet {
        legendsToken = _legendsToken;
    }

    /**
     * @dev Forward Ether to the exit address. Store all ETH and VIP information in public state and logs.
     * @param recipient Address that tokens should be attributed to.
     */
    function purchaseMembership(address sender, address recipient) external payable saleActive hasValue recipientIsValid(recipient) {

        if (msg.sender != address(legendsToken)) {
            throw;
        }
        // Attempt to send the ETH to the exit address.
        if (!exitAddress.send(msg.value)) {
            throw;
        }

        // Update ETH amounts.
        recipientETH[recipient] += msg.value;
        totalETH += msg.value;

        // Calculate VIP amount.
        uint VIP = msg.value * 10;  // $1 / VIP based on $10 / ETH value.

        // Are we in the pre-sale?
        if (block.timestamp - start < 2 weeks) {
            VIP = (VIP * 10) / 9;   // 10% discount.
        }

        // Update VIP amounts.
        recipientVIP[recipient] += VIP;
        totalVIP += VIP;

        // Check we have not exceeded the maximum VIP.
        if (totalVIP > limitVIP) {
            throw;
        }

        // Tell the token contract about the increase.
        legendsToken.addTokens(recipient, VIP);

        // Log this purchase.
        VIPPurchase(sender, recipient, msg.value, VIP);
    }

}


/**
 * @title LegendsToken
 */
contract LegendsToken is ERC20 {
    string public name = 'VIP';             //The Token's name: e.g. DigixDAO Tokens
    uint8 public decimals = 18;             // 1Token ¨= 1$ (1ETH ¨= 10$)
    string public symbol = 'VIP';           //An identifier: e.g. REP
    string public version = 'VIP_0.1';

    mapping (address => uint) ownerVIP;
    mapping (address => mapping (address => uint)) allowed;
    uint public totalVIP;
    uint public start;

    address public legendsCrowdfund;

    bool public testing;

    modifier fromCrowdfund() {
        if (msg.sender != legendsCrowdfund) {
            throw;
        }
        _;
    }

    modifier isActive() {
        if (block.timestamp < start) {
            throw;
        }
        _;
    }

    modifier isNotActive() {
        if (!testing && block.timestamp >= start) {
            throw;
        }
        _;
    }

    modifier recipientIsValid(address recipient) {
        if (recipient == 0 || recipient == address(this)) {
            throw;
        }
        _;
    }

    modifier allowanceIsZero(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;
        }
        _;
    }

    /**
     * @dev Constructor.
     * @param _legendsCrowdfund Address of crowdfund contract.
     * @param _preallocation Address to receive the pre-allocation.
     * @param _start Timestamp when the token becomes active.
     */
    function LegendsToken(address _legendsCrowdfund, address _preallocation, uint _start, bool _testing) {
        legendsCrowdfund = _legendsCrowdfund;
        start = _start;
        testing = _testing;
        totalVIP = ownerVIP[_preallocation] = 25000 ether;
    }

    /**
     * @dev Add to token balance on address. Must be from crowdfund.
     * @param recipient Address to add tokens to.
     * @return VIP Amount of VIP to add.
     */
    function addTokens(address recipient, uint VIP) external isNotActive fromCrowdfund {
        ownerVIP[recipient] += VIP;
        totalVIP += VIP;
        Transfer(0x0, recipient, VIP);
    }

    /**
     * @dev Implements ERC20 totalSupply()
     */
    function totalSupply() constant returns (uint256 totalSupply) {
        totalSupply = totalVIP;
    }

    /**
     * @dev Implements ERC20 balanceOf()
     */
    function balanceOf(address _owner) constant returns (uint256 balance) {
        balance = ownerVIP[_owner];
    }

    /**
     * @dev Implements ERC20 transfer()
     */
    function transfer(address _to, uint256 _value) isActive recipientIsValid(_to) returns (bool success) {
        if (ownerVIP[msg.sender] >= _value) {
            ownerVIP[msg.sender] -= _value;
            ownerVIP[_to] += _value;
            Transfer(msg.sender, _to, _value);
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Implements ERC20 transferFrom()
     */
    function transferFrom(address _from, address _to, uint256 _value) isActive recipientIsValid(_to) returns (bool success) {
        if (allowed[_from][msg.sender] >= _value && ownerVIP[_from] >= _value) {
            ownerVIP[_to] += _value;
            ownerVIP[_from] -= _value;
            allowed[_from][msg.sender] -= _value;
            Transfer(_from, _to, _value);
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Implements ERC20 approve()
     */
    function approve(address _spender, uint256 _value) isActive allowanceIsZero(_spender, _value) returns (bool success) {
        allowed[msg.sender][_spender] = _value;
        Approval(msg.sender, _spender, _value);
        return true;
    }

    /**
     * @dev Implements ERC20 allowance()
     */
    function allowance(address _owner, address _spender) constant returns (uint256 remaining) {
        remaining = allowed[_owner][_spender];
    }

    /**
     * @dev Direct Buy
     */
    function () payable {
        LegendsCrowdfund(legendsCrowdfund).purchaseMembership.value(msg.value)(msg.sender, msg.sender);
    }

    /**
     * @dev Proxy Buy
     */
    function purchaseMembership(address recipient) payable {
        LegendsCrowdfund(legendsCrowdfund).purchaseMembership.value(msg.value)(msg.sender, recipient);
    }

}

• No Contract Security Audit Submitted- Submit Audit Here

[{"constant":true,"inputs":[],"name":"creator","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"totalETH","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"totalVIP","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"limitVIP","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"recipientETH","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"sender","type":"address"},{"name":"recipient","type":"address"}],"name":"purchaseMembership","outputs":[],"payable":true,"type":"function"},{"constant":true,"inputs":[],"name":"exitAddress","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_legendsToken","type":"address"}],"name":"setTokenContract","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"start","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"legendsToken","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"recipientVIP","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"inputs":[{"name":"_exitAddress","type":"address"},{"name":"_start","type":"uint256"},{"name":"_limitVIP","type":"uint256"}],"payable":false,"type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"sender","type":"address"},{"indexed":true,"name":"recipient","type":"address"},{"indexed":false,"name":"ETH","type":"uint256"},{"indexed":false,"name":"VIP","type":"uint256"}],"name":"VIPPurchase","type":"event"}]

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

00000000000000000000000012df5f4d53cafc71d3395df2731fb3149b5fdb2b0000000000000000000000000000000000000000000000000000000058af77800000000000000000000000000000000000000000000c685fa11e01ec6f000000

-----Decoded View---------------
Arg [0] : _exitAddress (address): 0x12df5F4D53CaFC71D3395dF2731fb3149B5FDB2B
Arg [1] : _start (uint256): 1487894400
Arg [2] : _limitVIP (uint256): 15000000000000000000000000

-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 00000000000000000000000012df5f4d53cafc71d3395df2731fb3149b5fdb2b
Arg [1] : 0000000000000000000000000000000000000000000000000000000058af7780
Arg [2] : 0000000000000000000000000000000000000000000c685fa11e01ec6f000000

bzzr://7a14a15826de197189f5dc8012d196e90e4e441194e1bf944c7a17a9410e60d2