Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Is this a proxy?
• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2021-05-05
*/

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.4;

// File contracts/CrowdfundStorage.sol

/**
 * @title CrowdfundProxy
 * @author MirrorXYZ
 */
contract CrowdfundStorage {
    // The two states that this contract can exist in. "FUNDING" allows
    // contributors to add funds.
    enum Status {FUNDING, TRADING}

    // ============ Constants ============

    // The factor by which ETH contributions will multiply into crowdfund tokens.
    uint16 internal constant TOKEN_SCALE = 1000;
    uint256 internal constant REENTRANCY_NOT_ENTERED = 1;
    uint256 internal constant REENTRANCY_ENTERED = 2;
    uint8 public constant decimals = 18;

    // ============ Immutable Storage ============

    // The operator has a special role to change contract status.
    address payable public operator;
    address payable public fundingRecipient;
    // We add a hard cap to prevent raising more funds than deemed reasonable.
    uint256 public fundingCap;
    // The operator takes some equity in the tokens, represented by this percent.
    uint256 public operatorPercent;
    string public symbol;
    string public name;

    // ============ Mutable Storage ============

    // Represents the current state of the campaign.
    Status public status;
    uint256 internal reentrancy_status;

    // ============ Mutable ERC20 Attributes ============

    uint256 public totalSupply;
    mapping(address => uint256) public balanceOf;
    mapping(address => mapping(address => uint256)) public allowance;
    mapping(address => uint256) public nonces;

    // ============ Delegation logic ============
    address public logic;
}


// File contracts/CrowdfundProxy.sol



interface ICrowdfundFactory {
    function mediaAddress() external returns (address);

    function logic() external returns (address);

    // ERC20 data.
    function parameters()
        external
        returns (
            address payable operator,
            address payable fundingRecipient,
            uint256 fundingCap,
            uint256 operatorPercent,
            string memory name,
            string memory symbol
        );
}

/**
 * @title CrowdfundProxy
 * @author MirrorXYZ
 */
contract CrowdfundProxy is CrowdfundStorage {
    constructor() {
        logic = ICrowdfundFactory(msg.sender).logic();
        // Crowdfund-specific data.
        (
            operator,
            fundingRecipient,
            fundingCap,
            operatorPercent,
            name,
            symbol
        ) = ICrowdfundFactory(msg.sender).parameters();
        // Initialize mutable storage.
        status = Status.FUNDING;
    }

    fallback() external payable {
        address _impl = logic;
        assembly {
            let ptr := mload(0x40)
            calldatacopy(ptr, 0, calldatasize())
            let result := delegatecall(gas(), _impl, ptr, calldatasize(), 0, 0)
            let size := returndatasize()
            returndatacopy(ptr, 0, size)

            switch result
                case 0 {
                    revert(ptr, size)
                }
                default {
                    return(ptr, size)
                }
        }
    }

    receive() external payable {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"payable","type":"fallback"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"fundingCap","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"fundingRecipient","outputs":[{"internalType":"address payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"logic","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"operator","outputs":[{"internalType":"address payable","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"operatorPercent","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"status","outputs":[{"internalType":"enum CrowdfundStorage.Status","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]

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

2271:1052:0:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;2790:5;;2847:4;2841:11;2790:5;;;;;2887:14;2774:13;2841:11;2866:36;2981:1;2978;2962:14;2957:3;2950:5;2943;2930:53;3009:16;3062:4;3059:1;3054:3;3039:28;3090:6;3114:66;;;;3241:4;3236:3;3229:17;3114:66;3156:4;3151:3;3144:17;1152:18;;;;;;;;;;;;;:::i;:::-;;;;;;;:::i;:::-;;;;;;;;1416:26;;;;;;;;;;;;;;;;;;;2380:25:1;;;2368:2;2353:18;1416:26:0;2335:76:1;847:39:0;;;;;;;;;;-1:-1:-1;847:39:0;;;;;;;;;;;867:42:1;855:55;;;837:74;;825:2;810:18;847:39:0;792:125:1;1285:20:0;;;;;;;;;;-1:-1:-1;1285:20:0;;;;;;;;;;;;;;;:::i;644:35::-;;;;;;;;;;;;677:2;644:35;;;;;2588:4:1;2576:17;;;2558:36;;2546:2;2531:18;644:35:0;2513:87:1;809:31:0;;;;;;;;;;-1:-1:-1;809:31:0;;;;;;;;1449:44;;;;;;;;;;-1:-1:-1;1449:44:0;;;;;:::i;:::-;;;;;;;;;;;;;;1088:30;;;;;;;;;;;;;;;;1571:41;;;;;;;;;;-1:-1:-1;1571:41:0;;;;;:::i;:::-;;;;;;;;;;;;;;1125:20;;;;;;;;;;;;;:::i;1672:::-;;;;;;;;;;-1:-1:-1;1672:20:0;;;;;;;;1500:64;;;;;;;;;;-1:-1:-1;1500:64:0;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;973:25;;;;;;;;;;;;;;;;1152:18;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::o;1125:20::-;;;;;;;:::i;14:196:1:-;82:20;;142:42;131:54;;121:65;;111:2;;200:1;197;190:12;111:2;63:147;;;:::o;215:196::-;274:6;327:2;315:9;306:7;302:23;298:32;295:2;;;348:6;340;333:22;295:2;376:29;395:9;376:29;:::i;:::-;366:39;285:126;-1:-1:-1;;;285:126:1:o;416:270::-;484:6;492;545:2;533:9;524:7;520:23;516:32;513:2;;;566:6;558;551:22;513:2;594:29;613:9;594:29;:::i;:::-;584:39;;642:38;676:2;665:9;661:18;642:38;:::i;:::-;632:48;;503:183;;;;;:::o;1169:393::-;1309:2;1294:18;;1342:1;1331:13;;1321:2;;1378:77;1375:1;1368:88;1479:4;1476:1;1469:15;1507:4;1504:1;1497:15;1321:2;1531:25;;;1276:286;:::o;1567:662::-;1679:4;1708:2;1737;1726:9;1719:21;1769:6;1763:13;1812:6;1807:2;1796:9;1792:18;1785:34;1837:4;1850:140;1864:6;1861:1;1858:13;1850:140;;;1959:14;;;1955:23;;1949:30;1925:17;;;1944:2;1921:26;1914:66;1879:10;;1850:140;;;2008:6;2005:1;2002:13;1999:2;;;2078:4;2073:2;2064:6;2053:9;2049:22;2045:31;2038:45;1999:2;-1:-1:-1;2145:2:1;2133:15;2150:66;2129:88;2114:104;;;;2220:2;2110:113;;1688:541;-1:-1:-1;;;1688:541:1:o;2605:437::-;2684:1;2680:12;;;;2727;;;2748:2;;2802:4;2794:6;2790:17;2780:27;;2748:2;2855;2847:6;2844:14;2824:18;2821:38;2818:2;;;2892:77;2889:1;2882:88;2993:4;2990:1;2983:15;3021:4;3018:1;3011:15;2818:2;;2660:382;;;:::o

ipfs://d03f61a760b9c9e4e47cae11f7719edf7a4b3cb57db62866d2f23c905d44b020