Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

•  contract CardboardUnicorns
•    - function mint(address who, uint value ...
•    - function changeOwner(address _newOwne ...
•    - function withdraw()
•    - function withdrawForeignTokens(addres ...
•  contract RealUnicornCongress
•  contract ForeignToken
•    - function balanceOf(address _owner)
•    - function transfer(address _to, uint25 ...
•  contract CardboardUnicornAssembler *
•    - function changeOwner(address _newOwne ...
•    - function changeTokenOwner(address _ne ...
•    - function changeCardboardUnicornTokenA ...
•    - function changeRealUnicornAddress(add ...
•    - function withdraw(bool _includeToken)
•    - function withdrawForeignTokens(addres ...
•    - function updatePriceFromRealUnicornPr ...
•    - function setPrice(uint _newPrice)
•    - function assembleUnicorn()
•    - function()

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2017-07-02
*/

pragma solidity ^0.4.11;

contract CardboardUnicorns {
  address public owner;
  function mint(address who, uint value);
  function changeOwner(address _newOwner);
  function withdraw();
  function withdrawForeignTokens(address _tokenContract);
}
contract RealUnicornCongress {
  uint public priceOfAUnicornInFinney;
}
contract ForeignToken {
  function balanceOf(address _owner) constant returns (uint256);
  function transfer(address _to, uint256 _value) returns (bool);
}

contract CardboardUnicornAssembler {
  address public cardboardUnicornTokenAddress;
  address public realUnicornAddress = 0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5d359;
  address public owner = msg.sender;
  uint public pricePerUnicorn = 1 finney;
  uint public lastPriceSetDate = 0;
  
  event PriceUpdate(uint newPrice, address updater);

  modifier onlyOwner {
    require(msg.sender == owner);
    _;
  }
  
  /**
   * Change ownership of the assembler
   */
  function changeOwner(address _newOwner) onlyOwner {
    owner = _newOwner;
  }
  function changeTokenOwner(address _newOwner) onlyOwner {
    CardboardUnicorns cu = CardboardUnicorns(cardboardUnicornTokenAddress);
    cu.changeOwner(_newOwner);
  }
  
  /**
   * Change the CardboardUnicorns token contract managed by this contract
   */
  function changeCardboardUnicornTokenAddress(address _newTokenAddress) onlyOwner {
    CardboardUnicorns cu = CardboardUnicorns(_newTokenAddress);
    require(cu.owner() == address(this)); // We must be the owner of the token
    cardboardUnicornTokenAddress = _newTokenAddress;
  }
  
  /**
   * Change the real unicorn contract location.
   * This contract is used as a price reference; should the Ethereum Foundation
   * re-deploy their contract, this should be called to update the reference.
   */
  function changeRealUnicornAddress(address _newUnicornAddress) onlyOwner {
    realUnicornAddress = _newUnicornAddress;
  }
  
  function withdraw(bool _includeToken) onlyOwner {
    if (_includeToken) {
      // First have the token contract send all its funds to its owner (which is us)
      CardboardUnicorns cu = CardboardUnicorns(cardboardUnicornTokenAddress);
      cu.withdraw();
    }

    // Then send that whole total to our owner
    owner.transfer(this.balance);
  }
  function withdrawForeignTokens(address _tokenContract, bool _includeToken) onlyOwner {
    ForeignToken token = ForeignToken(_tokenContract);

    if (_includeToken) {
      // First have the token contract send its tokens to its owner (which is us)
      CardboardUnicorns cu = CardboardUnicorns(cardboardUnicornTokenAddress);
      cu.withdrawForeignTokens(_tokenContract);
    }

    // Then send that whole total to our owner
    uint256 amount = token.balanceOf(address(this));
    token.transfer(owner, amount);
  }

  /**
   * Update the price of a CardboardUnicorn to be 1/1000 a real Unicorn's price
   */
  function updatePriceFromRealUnicornPrice() {
    require(block.timestamp > lastPriceSetDate + 7 days); // If owner set the price, cannot sync right after
    RealUnicornCongress congress = RealUnicornCongress(realUnicornAddress);
    pricePerUnicorn = (congress.priceOfAUnicornInFinney() * 1 finney) / 1000;
    PriceUpdate(pricePerUnicorn, msg.sender);
  }
  
  /**
   * Set a specific price for a CardboardUnicorn
   */
  function setPrice(uint _newPrice) onlyOwner {
    pricePerUnicorn = _newPrice;
    lastPriceSetDate = block.timestamp;
    PriceUpdate(pricePerUnicorn, msg.sender);
  }
  
  /**
   * Strap a horn to a horse!
   */
  function assembleUnicorn() payable {
    if (msg.value >= pricePerUnicorn) {
        CardboardUnicorns cu = CardboardUnicorns(cardboardUnicornTokenAddress);
        cu.mint(msg.sender, msg.value / pricePerUnicorn);
        owner.transfer(msg.value);
    }
  }
  
  function() payable {
      assembleUnicorn();
  }

}

• No Contract Security Audit Submitted- Submit Audit Here

[{"constant":false,"inputs":[{"name":"_newOwner","type":"address"}],"name":"changeTokenOwner","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"lastPriceSetDate","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_newUnicornAddress","type":"address"}],"name":"changeRealUnicornAddress","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"cardboardUnicornTokenAddress","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"assembleUnicorn","outputs":[],"payable":true,"type":"function"},{"constant":false,"inputs":[],"name":"updatePriceFromRealUnicornPrice","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_newPrice","type":"uint256"}],"name":"setPrice","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_newOwner","type":"address"}],"name":"changeOwner","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_includeToken","type":"bool"}],"name":"withdraw","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_tokenContract","type":"address"},{"name":"_includeToken","type":"bool"}],"name":"withdrawForeignTokens","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"pricePerUnicorn","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_newTokenAddress","type":"address"}],"name":"changeCardboardUnicornTokenAddress","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"realUnicornAddress","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"payable":true,"type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"newPrice","type":"uint256"},{"indexed":false,"name":"updater","type":"address"}],"name":"PriceUpdate","type":"event"}]

60606040526001805473fb6916095ca1df60bb79ce92ce3ea74c37c5d359600160a060020a03199182161790915560028054909116600160a060020a03331617905566038d7ea4c680006003556000600455341561005957fe5b5b61095d806100696000396000f300606060405236156100b45763ffffffff60e060020a6000350416630f809adb81146100c557806331719c69146100e357806338c5a3dc146101055780633e8c34e51461012357806350f3dd7a1461014f5780637c842e5e146101595780638da5cb5b1461016b57806391b7f5ed14610197578063a6f9dae1146101ac578063a810a54c146101ca578063b520b68c146101e1578063c40940f414610204578063c9c666aa14610226578063d899299e14610244575b6100c35b6100c0610270565b5b565b005b34156100cd57fe5b6100c3600160a060020a0360043516610338565b005b34156100eb57fe5b6100f36103d1565b60408051918252519081900360200190f35b341561010d57fe5b6100c3600160a060020a03600435166103d7565b005b341561012b57fe5b610133610420565b60408051600160a060020a039092168252519081900360200190f35b6100c3610270565b005b341561016157fe5b6100c361042f565b005b341561017357fe5b61013361051b565b60408051600160a060020a039092168252519081900360200190f35b341561019f57fe5b6100c360043561052a565b005b34156101b457fe5b6100c3600160a060020a0360043516610597565b005b34156101d257fe5b6100c360043515156105e0565b005b34156101e957fe5b6100c3600160a060020a036004351660243515156106aa565b005b341561020c57fe5b6100f361084f565b60408051918252519081900360200190f35b341561022e57fe5b6100c3600160a060020a0360043516610855565b005b341561024c57fe5b610133610922565b60408051600160a060020a039092168252519081900360200190f35b60035460009034106103335750600054600354600160a060020a039091169081906340c10f19903390348115156102a357fe5b046040518363ffffffff1660e060020a0281526004018083600160a060020a0316600160a060020a0316815260200182815260200192505050600060405180830381600087803b15156102f257fe5b6102c65a03f1151561030057fe5b5050600254604051600160a060020a0390911691503480156108fc02916000818181858888f19350505050151561033357fe5b5b5b50565b60025460009033600160a060020a039081169116146103575760006000fd5b5060008054604080517fa6f9dae1000000000000000000000000000000000000000000000000000000008152600160a060020a03858116600483015291519190921692839263a6f9dae1926024808301939282900301818387803b15156103ba57fe5b6102c65a03f115156103c857fe5b5050505b5b5050565b60045481565b60025433600160a060020a039081169116146103f35760006000fd5b6001805473ffffffffffffffffffffffffffffffffffffffff1916600160a060020a0383161790555b5b50565b600054600160a060020a031681565b60045460009062093a800142116104465760006000fd5b600160009054906101000a9004600160a060020a031690506103e881600160a060020a03166350c348786000604051602001526040518163ffffffff1660e060020a028152600401809050602060405180830381600087803b15156104a757fe5b6102c65a03f115156104b557fe5b50506040515166038d7ea4c680000290508115156104cf57fe5b04600381905560408051918252600160a060020a033316602083015280517f59c33f94fc6c106ef0583145db590ce5a452add776c94e9d97507bcdf4e2137f9281900390910190a15b50565b600254600160a060020a031681565b60025433600160a060020a039081169116146105465760006000fd5b60038190554260045560408051828152600160a060020a033316602082015281517f59c33f94fc6c106ef0583145db590ce5a452add776c94e9d97507bcdf4e2137f929181900390910190a15b5b50565b60025433600160a060020a039081169116146105b35760006000fd5b6002805473ffffffffffffffffffffffffffffffffffffffff1916600160a060020a0383161790555b5b50565b60025460009033600160a060020a039081169116146105ff5760006000fd5b8115610672575060008054604080517f3ccfd60b0000000000000000000000000000000000000000000000000000000081529051600160a060020a03909216928392633ccfd60b92600480820193929182900301818387803b151561066057fe5b6102c65a03f1151561066e57fe5b5050505b600254604051600160a060020a039182169130163180156108fc02916000818181858888f1935050505015156103cc57fe5b5b5b5050565b6002546000908190819033600160a060020a039081169116146106cd5760006000fd5b849250831561074b5760008054604080517fe58fc54c000000000000000000000000000000000000000000000000000000008152600160a060020a0389811660048301529151919092169450849263e58fc54c926024808201939182900301818387803b151561073957fe5b6102c65a03f1151561074757fe5b5050505b82600160a060020a03166370a08231306000604051602001526040518263ffffffff1660e060020a0281526004018082600160a060020a0316600160a060020a03168152602001915050602060405180830381600087803b15156107ab57fe5b6102c65a03f115156107b957fe5b50506040805180516002546000602093840181905284517fa9059cbb000000000000000000000000000000000000000000000000000000008152600160a060020a039283166004820152602481018490529451929650908816945063a9059cbb936044808201949392918390030190829087803b151561083557fe5b6102c65a03f1151561084357fe5b5050505b5b5050505050565b60035481565b60025460009033600160a060020a039081169116146108745760006000fd5b81905030600160a060020a031681600160a060020a0316638da5cb5b6000604051602001526040518163ffffffff1660e060020a028152600401809050602060405180830381600087803b15156108c757fe5b6102c65a03f115156108d557fe5b505060405151600160a060020a03169190911490506108f45760006000fd5b6000805473ffffffffffffffffffffffffffffffffffffffff1916600160a060020a0384161790555b5b5050565b600154600160a060020a0316815600a165627a7a723058206f6da1efdf23a9c109377788721d018f7e644c708510313a96708c5e7d5addea0029

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

bzzr://6f6da1efdf23a9c109377788721d018f7e644c708510313a96708c5e7d5addea