Contract

Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

•  contract Token
•    - function balanceOf(address _owner)
•    - function transfer(address _to, uint25 ...
•    - function transferFrom(address _from, ...
•    - function approve(address _spender, ui ...
•    - function allowance(address _owner, ad ...
•  contract Owned
•    - function setOwner(address _new)
•  contract TokenReg
•    - function register(address _addr, stri ...
•    - function registerAs(address _addr, st ...
•    - function unregister(uint _id)
•    - function setFee(uint _fee)
•    - function tokenCount()
•    - function token(uint _id)
•    - function fromAddress(address _addr)
•    - function fromTLA(string _tla)
•    - function meta(uint _id, bytes32 _key)
•    - function setMeta(uint _id, bytes32 _k ...
•    - function transferTLA(string _tla, add ...
•    - function drain()
•  contract BasicCoin is Owned, Token *
•    - function BasicCoin(uint _totalSupply, ...
•    - function balanceOf(address _who)
•    - function transfer(address _to, uint25 ...
•    - function transferFrom(address _from, ...
•    - function approve(address _spender, ui ...
•    - function allowance(address _owner, ad ...
•  contract BasicCoinManager is Owned *
•    - function count()
•    - function get(uint _index)
•    - function countByOwner(address _owner)
•    - function getByOwner(address _owner, u ...
•    - function deploy(uint _totalSupply, st ...
•    - function drain()

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2017-09-25
*/

//! BasicCoin ECR20-compliant token contract
//! By Parity Team (Ethcore), 2016.
//! Released under the Apache Licence 2.

pragma solidity ^0.4.1;

// ECR20 standard token interface
contract Token {
  event Transfer(address indexed from, address indexed to, uint256 value);
  event Approval(address indexed owner, address indexed spender, uint256 value);

  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);
}

// Owner-specific contract interface
contract Owned {
  event NewOwner(address indexed old, address indexed current);

  modifier only_owner {
    if (msg.sender != owner) throw;
    _;
  }

  address public owner = msg.sender;

  function setOwner(address _new) only_owner {
    NewOwner(owner, _new);
    owner = _new;
  }
}

// TokenReg interface
contract TokenReg {
  function register(address _addr, string _tla, uint _base, string _name) payable returns (bool);
  function registerAs(address _addr, string _tla, uint _base, string _name, address _owner) payable returns (bool);
  function unregister(uint _id);
  function setFee(uint _fee);
  function tokenCount() constant returns (uint);
  function token(uint _id) constant returns (address addr, string tla, uint base, string name, address owner);
  function fromAddress(address _addr) constant returns (uint id, string tla, uint base, string name, address owner);
  function fromTLA(string _tla) constant returns (uint id, address addr, uint base, string name, address owner);
  function meta(uint _id, bytes32 _key) constant returns (bytes32);
  function setMeta(uint _id, bytes32 _key, bytes32 _value);
  function transferTLA(string _tla, address _to) returns (bool success);
  function drain();
  uint public fee;
}

// BasicCoin, ECR20 tokens that all belong to the owner for sending around
contract BasicCoin is Owned, Token {
  // this is as basic as can be, only the associated balance & allowances
  struct Account {
    uint balance;
    mapping (address => uint) allowanceOf;
  }

  // the balance should be available
  modifier when_owns(address _owner, uint _amount) {
    if (accounts[_owner].balance < _amount) throw;
    _;
  }

  // an allowance should be available
  modifier when_has_allowance(address _owner, address _spender, uint _amount) {
    if (accounts[_owner].allowanceOf[_spender] < _amount) throw;
    _;
  }

  // no ETH should be sent with the transaction
  modifier when_no_eth {
    if (msg.value > 0) throw;
    _;
  }

  // a value should be > 0
  modifier when_non_zero(uint _value) {
    if (_value == 0) throw;
    _;
  }

  // the base, tokens denoted in micros
  uint constant public base = 1000000;

  // available token supply
  uint public totalSupply;

  // storage and mapping of all balances & allowances
  mapping (address => Account) accounts;

  // constructor sets the parameters of execution, _totalSupply is all units
  function BasicCoin(uint _totalSupply, address _owner) when_no_eth when_non_zero(_totalSupply) {
    totalSupply = _totalSupply;
    owner = _owner;
    accounts[_owner].balance = totalSupply;
  }

  // balance of a specific address
  function balanceOf(address _who) constant returns (uint256) {
    return accounts[_who].balance;
  }

  // transfer
  function transfer(address _to, uint256 _value) when_no_eth when_owns(msg.sender, _value) returns (bool) {
    Transfer(msg.sender, _to, _value);
    accounts[msg.sender].balance -= _value;
    accounts[_to].balance += _value;

    return true;
  }

  // transfer via allowance
  function transferFrom(address _from, address _to, uint256 _value) when_no_eth when_owns(_from, _value) when_has_allowance(_from, msg.sender, _value) returns (bool) {
    Transfer(_from, _to, _value);
    accounts[_from].allowanceOf[msg.sender] -= _value;
    accounts[_from].balance -= _value;
    accounts[_to].balance += _value;

    return true;
  }

  // approve allowances
  function approve(address _spender, uint256 _value) when_no_eth returns (bool) {
    Approval(msg.sender, _spender, _value);
    accounts[msg.sender].allowanceOf[_spender] += _value;

    return true;
  }

  // available allowance
  function allowance(address _owner, address _spender) constant returns (uint256) {
    return accounts[_owner].allowanceOf[_spender];
  }

  // no default function, simple contract only, entry-level users
  function() {
    throw;
  }
}

// Manages BasicCoin instances, including the deployment & registration
contract BasicCoinManager is Owned {
  // a structure wrapping a deployed BasicCoin
  struct Coin {
    address coin;
    address owner;
    address tokenreg;
  }

  // a new BasicCoin has been deployed
  event Created(address indexed owner, address indexed tokenreg, address indexed coin);

  // a list of all the deployed BasicCoins
  Coin[] coins;

  // all BasicCoins for a specific owner
  mapping (address => uint[]) ownedCoins;

  // the base, tokens denoted in micros (matches up with BasicCoin interface above)
  uint constant public base = 1000000;

  // return the number of deployed
  function count() constant returns (uint) {
    return coins.length;
  }

  // get a specific deployment
  function get(uint _index) constant returns (address coin, address owner, address tokenreg) {
    Coin c = coins[_index];

    coin = c.coin;
    owner = c.owner;
    tokenreg = c.tokenreg;
  }

  // returns the number of coins for a specific owner
  function countByOwner(address _owner) constant returns (uint) {
    return ownedCoins[_owner].length;
  }

  // returns a specific index by owner
  function getByOwner(address _owner, uint _index) constant returns (address coin, address owner, address tokenreg) {
    return get(ownedCoins[_owner][_index]);
  }

  // deploy a new BasicCoin on the blockchain
  function deploy(uint _totalSupply, string _tla, string _name, address _tokenreg) payable returns (bool) {
    TokenReg tokenreg = TokenReg(_tokenreg);
    BasicCoin coin = new BasicCoin(_totalSupply, msg.sender);

    uint ownerCount = countByOwner(msg.sender);
    uint fee = tokenreg.fee();

    ownedCoins[msg.sender].length = ownerCount + 1;
    ownedCoins[msg.sender][ownerCount] = coins.length;
    coins.push(Coin(coin, msg.sender, tokenreg));
    tokenreg.registerAs.value(fee)(coin, _tla, base, _name, msg.sender);

    Created(msg.sender, tokenreg, coin);

    return true;
  }

  // owner can withdraw all collected funds
  function drain() only_owner {
    if (!msg.sender.send(this.balance)) {
      throw;
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_new","type":"address"}],"name":"setOwner","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"base","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_who","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"inputs":[{"name":"_totalSupply","type":"uint256"},{"name":"_owner","type":"address"}],"type":"constructor"},{"payable":false,"type":"fallback"},{"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":"old","type":"address"},{"indexed":true,"name":"current","type":"address"}],"name":"NewOwner","type":"event"}]

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