Contract

Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

•  contract tokenRecipient function ...
•  contract DaaToken *
•    - function DaaToken(
•    - function transfer(address _to, uint25 ...
•    - function approve(address _spender, ui ...
•    - function transferFrom(address _from, ...
•    - function approveAndCall(address _spen ...
•    - function mint(address _to, uint256 _v ...
•    - function burn(uint256 _value)
•    - function setBlockLock(uint256 _locked ...
•    - function replaceOwner(address _newOwn ...
•    - function setMinter(address _newMinter ...
•    - function balanceOf(address _owner)
•    - function allowance(address _owner, ad ...
•    - function isLocked()
•    - function isTransferValid(address _fro ...

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2017-12-28
*/

pragma solidity ^0.4.10;

contract tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData); }

/// @title ICONOMI Daa token
contract DaaToken {
  //
  // events
  //
  // ERC20 events
  event Transfer(address indexed _from, address indexed _to, uint256 _value);
  event Approval(address indexed _owner, address indexed _spender, uint256 _value);

  // mint/burn events
  event Mint(address indexed _to, uint256 _amount, uint256 _newTotalSupply);
  event Burn(address indexed _from, uint256 _amount, uint256 _newTotalSupply);

  // admin events
  event BlockLockSet(uint256 _value);
  event NewOwner(address _newOwner);
  event NewMinter(address _minter);

  modifier onlyOwner {
    if (msg.sender == owner) {
      _;
    }
  }

  modifier minterOrOwner {
    if (msg.sender == minter || msg.sender == owner) {
      _;
    }
  }

  modifier blockLock(address _sender) {
    if (!isLocked() || _sender == owner) {
      _;
    }
  }

  modifier validTransfer(address _from, address _to, uint256 _amount) {
    if (isTransferValid(_from, _to, _amount)) {
      _;
    }
  }

  uint256 public totalSupply;
  string public name;
  uint8 public decimals;
  string public symbol;
  string public version = '0.0.1';
  address public owner;
  address public minter;
  uint256 public lockedUntilBlock;

  function DaaToken(
      string _tokenName,
      uint8 _decimalUnits,
      string _tokenSymbol,
      uint256 _lockedUntilBlock
  ) {

    name = _tokenName;
    decimals = _decimalUnits;
    symbol = _tokenSymbol;
    lockedUntilBlock = _lockedUntilBlock;
    owner = msg.sender;
  }

  function transfer(address _to, uint256 _value)
      public
      blockLock(msg.sender)
      validTransfer(msg.sender, _to, _value)
      returns (bool success)
  {

    // transfer tokens
    balances[msg.sender] -= _value;
    balances[_to] += _value;

    Transfer(msg.sender, _to, _value);
    return true;
  }

  function approve(address _spender, uint256 _value)
      public
      returns (bool success)
  {
    allowed[msg.sender][_spender] = _value;
    Approval(msg.sender, _spender, _value);
    return true;
  }

  function transferFrom(address _from, address _to, uint256 _value)
      public
      blockLock(_from)
      validTransfer(_from, _to, _value)
      returns (bool success)
  {

    // check sufficient allowance
    if (_value > allowed[_from][msg.sender]) {
      return false;
    }

    // transfer tokens
    balances[_from] -= _value;
    balances[_to] += _value;
    allowed[_from][msg.sender] -= _value;

    Transfer(_from, _to, _value);
    return true;
  }

  function approveAndCall(address _spender, uint256 _value, bytes _extraData)
      public
      returns (bool success)
  {
    if (approve(_spender, _value)) {
      tokenRecipient(_spender).receiveApproval(msg.sender, _value, this, _extraData);
      return true;
    }
  }

  /// @notice Mint new tokens. Can only be called by minter or owner
  function mint(address _to, uint256 _value)
      public
      minterOrOwner
      blockLock(msg.sender)
      returns (bool success)
  {
    // ensure _value is greater than zero and
    // doesn't overflow
    if (totalSupply + _value <= totalSupply) {
      return false;
    }

    balances[_to] += _value;
    totalSupply += _value;

    Mint(_to, _value, totalSupply);
    Transfer(0x0, _to, _value);

    return true;
  }

  /// @notice Burn tokens. Can be called by any account
  function burn(uint256 _value)
      public
      blockLock(msg.sender)
      returns (bool success)
  {
    if (_value == 0 || _value > balances[msg.sender]) {
      return false;
    }

    balances[msg.sender] -= _value;
    totalSupply -= _value;

    Burn(msg.sender, _value, totalSupply);
    Transfer(msg.sender, 0x0, _value);

    return true;
  }

  /// @notice Set block lock. Until that block (exclusive) transfers are disallowed
  function setBlockLock(uint256 _lockedUntilBlock)
      public
      onlyOwner
      returns (bool success)
  {
    lockedUntilBlock = _lockedUntilBlock;
    BlockLockSet(_lockedUntilBlock);
    return true;
  }

  /// @notice Replace current owner with new one
  function replaceOwner(address _newOwner)
      public
      onlyOwner
      returns (bool success)
  {
    owner = _newOwner;
    NewOwner(_newOwner);
    return true;
  }

  /// @notice Set account that can mint new tokens
  function setMinter(address _newMinter)
      public
      onlyOwner
      returns (bool success)
  {
    minter = _newMinter;
    NewMinter(_newMinter);
    return true;
  }

  function balanceOf(address _owner)
      public
      constant
      returns (uint256 balance)
  {
    return balances[_owner];
  }

  function allowance(address _owner, address _spender)
      public
      constant
      returns (uint256 remaining)
  {
    return allowed[_owner][_spender];
  }

  /// @notice Are transfers currently disallowed
  function isLocked()
      public
      constant
      returns (bool success)
  {
    return lockedUntilBlock > block.number;
  }

  /// @dev Checks if transfer parameters are valid
  function isTransferValid(address _from, address _to, uint256 _amount)
      private
      constant
      returns (bool isValid)
  {
    return  balances[_from] >= _amount &&  // sufficient balance
            _amount > 0 &&                 // amount is positive
            _to != address(this) &&        // prevent sending tokens to contract
            _to != 0x0                     // prevent sending token to 0x0 address
    ;
  }

  mapping (address => uint256) balances;
  mapping (address => mapping (address => uint256)) allowed;
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"minter","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_lockedUntilBlock","type":"uint256"}],"name":"setBlockLock","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"mint","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_value","type":"uint256"}],"name":"burn","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"version","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_newOwner","type":"address"}],"name":"replaceOwner","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"isLocked","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"},{"name":"_extraData","type":"bytes"}],"name":"approveAndCall","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"lockedUntilBlock","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_newMinter","type":"address"}],"name":"setMinter","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[{"name":"_tokenName","type":"string"},{"name":"_decimalUnits","type":"uint8"},{"name":"_tokenSymbol","type":"string"},{"name":"_lockedUntilBlock","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_owner","type":"address"},{"indexed":true,"name":"_spender","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_amount","type":"uint256"},{"indexed":false,"name":"_newTotalSupply","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":false,"name":"_amount","type":"uint256"},{"indexed":false,"name":"_newTotalSupply","type":"uint256"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"_value","type":"uint256"}],"name":"BlockLockSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"_newOwner","type":"address"}],"name":"NewOwner","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"_minter","type":"address"}],"name":"NewMinter","type":"event"}]

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

bzzr://0fa19beb896dce350dd87c4726c5d0e9d00d8b27fbc7299af6d8deb62ec725a0