Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

• interface IERC20
•    - function allowance(address owner, add ...
•    - function transfer(address recipient, ...
•    - function transferFrom(address sender, ...
•  contract BridgeAssistE *
•    - function collect(address _sender, uin ...
•    - function dispense(address _sender, ui ...
•    - function transferOwnership(address _n ...

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2021-03-20
*/

// SPDX-License-Identifier: MIT
pragma solidity 0.8.2;
interface IERC20 {
    function allowance(address owner, address spender) external view returns (uint256);
    function transfer(address recipient, uint256 amount) external returns (bool);
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
}
contract BridgeAssistE {
    address public owner;
    IERC20 public TKN;

    modifier restricted {
        require(msg.sender == owner, "This function is restricted to owner");
        _;
    }
    
    event Collect(address indexed sender, uint256 amount);
    event Dispense(address indexed sender, uint256 amount);
    event TransferOwnership(address indexed previousOwner, address indexed newOwner);

    function collect(address _sender, uint256 _amount) public restricted returns (bool success) {
        require(TKN.allowance(_sender, address(this)) >= _amount, "Amount check failed");
        require(TKN.transferFrom(_sender, address(this), _amount), "transferFrom() failure. Make sure that your balance is not lower than the allowance you set");
        emit Collect(_sender, _amount);
        return true;
    }

    function dispense(address _sender, uint256 _amount) public restricted returns (bool success) {
        require(TKN.transfer(_sender, _amount), "transfer() failure. Contact contract owner");
        emit Dispense(_sender, _amount);
        return true;
    }

    function transferOwnership(address _newOwner) public restricted {
        require(_newOwner != address(0), "Invalid address: should not be 0x0");
        emit TransferOwnership(owner, _newOwner);
        owner = _newOwner;
    }

    constructor(IERC20 _TKN, address _owner) {
        TKN = _TKN;
        owner = _owner;
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"contract IERC20","name":"_TKN","type":"address"},{"internalType":"address","name":"_owner","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Collect","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Dispense","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"TransferOwnership","type":"event"},{"inputs":[],"name":"TKN","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_sender","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"collect","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_sender","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"dispense","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

00000000000000000000000021bfbda47a0b4b5b1248c767ee49f7caa9b23697000000000000000000000000ead37b6391dccd8a81a46f6b620409ead53c254f

-----Decoded View---------------
Arg [0] : _TKN (address): 0x21BfBDa47A0B4B5b1248c767Ee49F7caA9B23697
Arg [1] : _owner (address): 0xEad37b6391dCcD8a81A46f6b620409EaD53c254f

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 00000000000000000000000021bfbda47a0b4b5b1248c767ee49f7caa9b23697
Arg [1] : 000000000000000000000000ead37b6391dccd8a81a46f6b620409ead53c254f

355:1457:0:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;779:418;;;;;;:::i;:::-;;:::i;:::-;;;2504:14:1;;2497:22;2479:41;;2467:2;2452:18;779:418:0;;;;;;;;385:20;;;;;-1:-1:-1;;;;;385:20:0;;;;;;-1:-1:-1;;;;;1327:32:1;;;1309:51;;1297:2;1282:18;385:20:0;1264:102:1;412:17:0;;;;;-1:-1:-1;;;;;412:17:0;;;1205:261;;;;;;:::i;:::-;;:::i;1474:232::-;;;;;;:::i;:::-;;:::i;:::-;;779:418;857:12;491:5;;-1:-1:-1;;;;;491:5:0;477:10;:19;469:68;;;;-1:-1:-1;;;469:68:0;;;;;;;:::i;:::-;;;;;;;;;890:3:::1;::::0;:37:::1;::::0;-1:-1:-1;;;890:37:0;;-1:-1:-1;;;;;1601:15:1;;;890:37:0::1;::::0;::::1;1583:34:1::0;921:4:0::1;1633:18:1::0;;;1626:43;931:7:0;;890:3:::1;::::0;:13:::1;::::0;1518:18:1;;890:37:0::1;;;;;;;;;;;;;;;;::::0;::::1;;;;;;;;;;;;::::0;::::1;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;:48;;882:80;;;::::0;-1:-1:-1;;;882:80:0;;3859:2:1;882:80:0::1;::::0;::::1;3841:21:1::0;3898:2;3878:18;;;3871:30;-1:-1:-1;;;3917:18:1;;;3910:49;3976:18;;882:80:0::1;3831:169:1::0;882:80:0::1;981:3;::::0;:49:::1;::::0;-1:-1:-1;;;981:49:0;;-1:-1:-1;;;;;1938:15:1;;;981:49:0::1;::::0;::::1;1920:34:1::0;1015:4:0::1;1970:18:1::0;;;1963:43;2022:18;;;2015:34;;;981:3:0;;::::1;::::0;:16:::1;::::0;1855:18:1;;981:49:0::1;;;;;;;;;;;;;;;;;::::0;::::1;;;;;;;;;;;;::::0;::::1;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;973:153;;;::::0;-1:-1:-1;;;973:153:0;;3359:2:1;973:153:0::1;::::0;::::1;3341:21:1::0;3398:2;3378:18;;;3371:30;3437:34;3417:18;;;3410:62;3508:34;3488:18;;;3481:62;3580:29;3559:19;;;3552:58;3627:19;;973:153:0::1;3331:321:1::0;973:153:0::1;1150:7;-1:-1:-1::0;;;;;1142:25:0::1;;1159:7;1142:25;;;;4965::1::0;;4953:2;4938:18;;4920:76;1142:25:0::1;;;;;;;;-1:-1:-1::0;1185:4:0::1;779:418:::0;;;;:::o;1205:261::-;1284:12;491:5;;-1:-1:-1;;;;;491:5:0;477:10;:19;469:68;;;;-1:-1:-1;;;469:68:0;;;;;;;:::i;:::-;1317:3:::1;::::0;:30:::1;::::0;-1:-1:-1;;;1317:30:0;;-1:-1:-1;;;;;2252:32:1;;;1317:30:0::1;::::0;::::1;2234:51:1::0;2301:18;;;2294:34;;;1317:3:0;;::::1;::::0;:12:::1;::::0;2207:18:1;;1317:30:0::1;;;;;;;;;;;;;;;;;::::0;::::1;;;;;;;;;;;;::::0;::::1;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;1309:85;;;::::0;-1:-1:-1;;;1309:85:0;;4610:2:1;1309:85:0::1;::::0;::::1;4592:21:1::0;4649:2;4629:18;;;4622:30;4688:34;4668:18;;;4661:62;-1:-1:-1;;;4739:18:1;;;4732:40;4789:19;;1309:85:0::1;4582:232:1::0;1309:85:0::1;1419:7;-1:-1:-1::0;;;;;1410:26:0::1;;1428:7;1410:26;;;;4965:25:1::0;;4953:2;4938:18;;4920:76;1474:232:0;491:5;;-1:-1:-1;;;;;491:5:0;477:10;:19;469:68;;;;-1:-1:-1;;;469:68:0;;;;;;;:::i;:::-;-1:-1:-1;;;;;1557:23:0;::::1;1549:70;;;::::0;-1:-1:-1;;;1549:70:0;;4207:2:1;1549:70:0::1;::::0;::::1;4189:21:1::0;4246:2;4226:18;;;4219:30;4285:34;4265:18;;;4258:62;-1:-1:-1;;;4336:18:1;;;4329:32;4378:19;;1549:70:0::1;4179:224:1::0;1549:70:0::1;1653:5;::::0;;1635:35:::1;::::0;-1:-1:-1;;;;;1635:35:0;;::::1;::::0;1653:5;::::1;::::0;1635:35:::1;::::0;::::1;1681:5;:17:::0;;-1:-1:-1;;;;;;1681:17:0::1;-1:-1:-1::0;;;;;1681:17:0;;;::::1;::::0;;;::::1;::::0;;1474:232::o;14:173:1:-;82:20;;-1:-1:-1;;;;;131:31:1;;121:42;;111:2;;177:1;174;167:12;111:2;63:124;;;:::o;192:196::-;;304:2;292:9;283:7;279:23;275:32;272:2;;;325:6;317;310:22;272:2;353:29;372:9;353:29;:::i;:::-;343:39;262:126;-1:-1:-1;;;262:126:1:o;393:264::-;;;522:2;510:9;501:7;497:23;493:32;490:2;;;543:6;535;528:22;490:2;571:29;590:9;571:29;:::i;:::-;561:39;647:2;632:18;;;;619:32;;-1:-1:-1;;;480:177:1:o;662:297::-;;782:2;770:9;761:7;757:23;753:32;750:2;;;803:6;795;788:22;750:2;840:9;834:16;893:5;886:13;879:21;872:5;869:32;859:2;;920:6;912;905:22;964:194;;1087:2;1075:9;1066:7;1062:23;1058:32;1055:2;;;1108:6;1100;1093:22;1055:2;-1:-1:-1;1136:16:1;;1045:113;-1:-1:-1;1045:113:1:o;2752:400::-;2954:2;2936:21;;;2993:2;2973:18;;;2966:30;3032:34;3027:2;3012:18;;3005:62;-1:-1:-1;;;3098:2:1;3083:18;;3076:34;3142:3;3127:19;;2926:226::o

ipfs://f998709cd8c5d944add9267b9809d51bb3213ca085d4c56f573b409044f90d10