ETH Price: $2,770.99 (+2.78%)
Gas: 1.91 Gwei

Transaction Decoder

Block:
7573717 at Apr-15-2019 04:57:14 PM +UTC
Transaction Fee:
0.000216372 ETH $0.60
Gas Used:
54,093 Gas / 4 Gwei

Emitted Events:

60 TokenERC20.Transfer( from=[Sender] 0x343a3c7f789335c9ea60932d34be258f643678d9, to=[Receiver] EtherDelta, value=3000000000000000000000 )
61 EtherDelta.Deposit( token=TokenERC20, user=[Sender] 0x343a3c7f789335c9ea60932d34be258f643678d9, amount=3000000000000000000000, balance=3000000000000000000000 )

Account State Difference:

  Address   Before After State Difference Code
0x343a3C7F...F643678d9
0.092934573776752632 Eth
Nonce: 120
0.092718201776752632 Eth
Nonce: 121
0.000216372
(Spark Pool)
3,275.857166462553757141 Eth3,275.857382834553757141 Eth0.000216372
0x6a750D25...ac4263B57
0x8d12A197...2A5CC6819
(EtherDelta 2)

Execution Trace

EtherDelta.depositToken( token=0x6a750D255416483BeC1A31Ca7050C6dac4263B57, amount=3000000000000000000000 )
  • TokenERC20.transferFrom( _from=0x343a3C7F789335C9EA60932D34bE258F643678d9, _to=0x8d12A197cB00D4747a1fe03395095ce2A5CC6819, _value=3000000000000000000000 ) => ( success=True )
    File 1 of 2: EtherDelta
    pragma solidity ^0.4.9;
    
    contract SafeMath {
      function safeMul(uint a, uint b) internal returns (uint) {
        uint c = a * b;
        assert(a == 0 || c / a == b);
        return c;
      }
    
      function safeSub(uint a, uint b) internal returns (uint) {
        assert(b <= a);
        return a - b;
      }
    
      function safeAdd(uint a, uint b) internal returns (uint) {
        uint c = a + b;
        assert(c>=a && c>=b);
        return c;
      }
    
      function assert(bool assertion) internal {
        if (!assertion) throw;
      }
    }
    
    contract Token {
      /// @return total amount of tokens
      function totalSupply() constant returns (uint256 supply) {}
    
      /// @param _owner The address from which the balance will be retrieved
      /// @return The balance
      function balanceOf(address _owner) constant returns (uint256 balance) {}
    
      /// @notice send `_value` token to `_to` from `msg.sender`
      /// @param _to The address of the recipient
      /// @param _value The amount of token to be transferred
      /// @return Whether the transfer was successful or not
      function transfer(address _to, uint256 _value) returns (bool success) {}
    
      /// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from`
      /// @param _from The address of the sender
      /// @param _to The address of the recipient
      /// @param _value The amount of token to be transferred
      /// @return Whether the transfer was successful or not
      function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {}
    
      /// @notice `msg.sender` approves `_addr` to spend `_value` tokens
      /// @param _spender The address of the account able to transfer the tokens
      /// @param _value The amount of wei to be approved for transfer
      /// @return Whether the approval was successful or not
      function approve(address _spender, uint256 _value) returns (bool success) {}
    
      /// @param _owner The address of the account owning tokens
      /// @param _spender The address of the account able to transfer the tokens
      /// @return Amount of remaining tokens allowed to spent
      function allowance(address _owner, address _spender) constant returns (uint256 remaining) {}
    
      event Transfer(address indexed _from, address indexed _to, uint256 _value);
      event Approval(address indexed _owner, address indexed _spender, uint256 _value);
    
      uint public decimals;
      string public name;
    }
    
    contract StandardToken is Token {
    
      function transfer(address _to, uint256 _value) returns (bool success) {
        //Default assumes totalSupply can't be over max (2^256 - 1).
        //If your token leaves out totalSupply and can issue more tokens as time goes on, you need to check if it doesn't wrap.
        //Replace the if with this one instead.
        if (balances[msg.sender] >= _value && balances[_to] + _value > balances[_to]) {
        //if (balances[msg.sender] >= _value && _value > 0) {
          balances[msg.sender] -= _value;
          balances[_to] += _value;
          Transfer(msg.sender, _to, _value);
          return true;
        } else { return false; }
      }
    
      function transferFrom(address _from, address _to, uint256 _value) returns (bool success) {
        //same as above. Replace this line with the following if you want to protect against wrapping uints.
        if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && balances[_to] + _value > balances[_to]) {
        //if (balances[_from] >= _value && allowed[_from][msg.sender] >= _value && _value > 0) {
          balances[_to] += _value;
          balances[_from] -= _value;
          allowed[_from][msg.sender] -= _value;
          Transfer(_from, _to, _value);
          return true;
        } else { return false; }
      }
    
      function balanceOf(address _owner) constant returns (uint256 balance) {
        return balances[_owner];
      }
    
      function approve(address _spender, uint256 _value) returns (bool success) {
        allowed[msg.sender][_spender] = _value;
        Approval(msg.sender, _spender, _value);
        return true;
      }
    
      function allowance(address _owner, address _spender) constant returns (uint256 remaining) {
        return allowed[_owner][_spender];
      }
    
      mapping(address => uint256) balances;
    
      mapping (address => mapping (address => uint256)) allowed;
    
      uint256 public totalSupply;
    }
    
    contract ReserveToken is StandardToken, SafeMath {
      address public minter;
      function ReserveToken() {
        minter = msg.sender;
      }
      function create(address account, uint amount) {
        if (msg.sender != minter) throw;
        balances[account] = safeAdd(balances[account], amount);
        totalSupply = safeAdd(totalSupply, amount);
      }
      function destroy(address account, uint amount) {
        if (msg.sender != minter) throw;
        if (balances[account] < amount) throw;
        balances[account] = safeSub(balances[account], amount);
        totalSupply = safeSub(totalSupply, amount);
      }
    }
    
    contract AccountLevels {
      //given a user, returns an account level
      //0 = regular user (pays take fee and make fee)
      //1 = market maker silver (pays take fee, no make fee, gets rebate)
      //2 = market maker gold (pays take fee, no make fee, gets entire counterparty's take fee as rebate)
      function accountLevel(address user) constant returns(uint) {}
    }
    
    contract AccountLevelsTest is AccountLevels {
      mapping (address => uint) public accountLevels;
    
      function setAccountLevel(address user, uint level) {
        accountLevels[user] = level;
      }
    
      function accountLevel(address user) constant returns(uint) {
        return accountLevels[user];
      }
    }
    
    contract EtherDelta is SafeMath {
      address public admin; //the admin address
      address public feeAccount; //the account that will receive fees
      address public accountLevelsAddr; //the address of the AccountLevels contract
      uint public feeMake; //percentage times (1 ether)
      uint public feeTake; //percentage times (1 ether)
      uint public feeRebate; //percentage times (1 ether)
      mapping (address => mapping (address => uint)) public tokens; //mapping of token addresses to mapping of account balances (token=0 means Ether)
      mapping (address => mapping (bytes32 => bool)) public orders; //mapping of user accounts to mapping of order hashes to booleans (true = submitted by user, equivalent to offchain signature)
      mapping (address => mapping (bytes32 => uint)) public orderFills; //mapping of user accounts to mapping of order hashes to uints (amount of order that has been filled)
    
      event Order(address tokenGet, uint amountGet, address tokenGive, uint amountGive, uint expires, uint nonce, address user);
      event Cancel(address tokenGet, uint amountGet, address tokenGive, uint amountGive, uint expires, uint nonce, address user, uint8 v, bytes32 r, bytes32 s);
      event Trade(address tokenGet, uint amountGet, address tokenGive, uint amountGive, address get, address give);
      event Deposit(address token, address user, uint amount, uint balance);
      event Withdraw(address token, address user, uint amount, uint balance);
    
      function EtherDelta(address admin_, address feeAccount_, address accountLevelsAddr_, uint feeMake_, uint feeTake_, uint feeRebate_) {
        admin = admin_;
        feeAccount = feeAccount_;
        accountLevelsAddr = accountLevelsAddr_;
        feeMake = feeMake_;
        feeTake = feeTake_;
        feeRebate = feeRebate_;
      }
    
      function() {
        throw;
      }
    
      function changeAdmin(address admin_) {
        if (msg.sender != admin) throw;
        admin = admin_;
      }
    
      function changeAccountLevelsAddr(address accountLevelsAddr_) {
        if (msg.sender != admin) throw;
        accountLevelsAddr = accountLevelsAddr_;
      }
    
      function changeFeeAccount(address feeAccount_) {
        if (msg.sender != admin) throw;
        feeAccount = feeAccount_;
      }
    
      function changeFeeMake(uint feeMake_) {
        if (msg.sender != admin) throw;
        if (feeMake_ > feeMake) throw;
        feeMake = feeMake_;
      }
    
      function changeFeeTake(uint feeTake_) {
        if (msg.sender != admin) throw;
        if (feeTake_ > feeTake || feeTake_ < feeRebate) throw;
        feeTake = feeTake_;
      }
    
      function changeFeeRebate(uint feeRebate_) {
        if (msg.sender != admin) throw;
        if (feeRebate_ < feeRebate || feeRebate_ > feeTake) throw;
        feeRebate = feeRebate_;
      }
    
      function deposit() payable {
        tokens[0][msg.sender] = safeAdd(tokens[0][msg.sender], msg.value);
        Deposit(0, msg.sender, msg.value, tokens[0][msg.sender]);
      }
    
      function withdraw(uint amount) {
        if (tokens[0][msg.sender] < amount) throw;
        tokens[0][msg.sender] = safeSub(tokens[0][msg.sender], amount);
        if (!msg.sender.call.value(amount)()) throw;
        Withdraw(0, msg.sender, amount, tokens[0][msg.sender]);
      }
    
      function depositToken(address token, uint amount) {
        //remember to call Token(address).approve(this, amount) or this contract will not be able to do the transfer on your behalf.
        if (token==0) throw;
        if (!Token(token).transferFrom(msg.sender, this, amount)) throw;
        tokens[token][msg.sender] = safeAdd(tokens[token][msg.sender], amount);
        Deposit(token, msg.sender, amount, tokens[token][msg.sender]);
      }
    
      function withdrawToken(address token, uint amount) {
        if (token==0) throw;
        if (tokens[token][msg.sender] < amount) throw;
        tokens[token][msg.sender] = safeSub(tokens[token][msg.sender], amount);
        if (!Token(token).transfer(msg.sender, amount)) throw;
        Withdraw(token, msg.sender, amount, tokens[token][msg.sender]);
      }
    
      function balanceOf(address token, address user) constant returns (uint) {
        return tokens[token][user];
      }
    
      function order(address tokenGet, uint amountGet, address tokenGive, uint amountGive, uint expires, uint nonce) {
        bytes32 hash = sha256(this, tokenGet, amountGet, tokenGive, amountGive, expires, nonce);
        orders[msg.sender][hash] = true;
        Order(tokenGet, amountGet, tokenGive, amountGive, expires, nonce, msg.sender);
      }
    
      function trade(address tokenGet, uint amountGet, address tokenGive, uint amountGive, uint expires, uint nonce, address user, uint8 v, bytes32 r, bytes32 s, uint amount) {
        //amount is in amountGet terms
        bytes32 hash = sha256(this, tokenGet, amountGet, tokenGive, amountGive, expires, nonce);
        if (!(
          (orders[user][hash] || ecrecover(sha3("\x19Ethereum Signed Message:\n32", hash),v,r,s) == user) &&
          block.number <= expires &&
          safeAdd(orderFills[user][hash], amount) <= amountGet
        )) throw;
        tradeBalances(tokenGet, amountGet, tokenGive, amountGive, user, amount);
        orderFills[user][hash] = safeAdd(orderFills[user][hash], amount);
        Trade(tokenGet, amount, tokenGive, amountGive * amount / amountGet, user, msg.sender);
      }
    
      function tradeBalances(address tokenGet, uint amountGet, address tokenGive, uint amountGive, address user, uint amount) private {
        uint feeMakeXfer = safeMul(amount, feeMake) / (1 ether);
        uint feeTakeXfer = safeMul(amount, feeTake) / (1 ether);
        uint feeRebateXfer = 0;
        if (accountLevelsAddr != 0x0) {
          uint accountLevel = AccountLevels(accountLevelsAddr).accountLevel(user);
          if (accountLevel==1) feeRebateXfer = safeMul(amount, feeRebate) / (1 ether);
          if (accountLevel==2) feeRebateXfer = feeTakeXfer;
        }
        tokens[tokenGet][msg.sender] = safeSub(tokens[tokenGet][msg.sender], safeAdd(amount, feeTakeXfer));
        tokens[tokenGet][user] = safeAdd(tokens[tokenGet][user], safeSub(safeAdd(amount, feeRebateXfer), feeMakeXfer));
        tokens[tokenGet][feeAccount] = safeAdd(tokens[tokenGet][feeAccount], safeSub(safeAdd(feeMakeXfer, feeTakeXfer), feeRebateXfer));
        tokens[tokenGive][user] = safeSub(tokens[tokenGive][user], safeMul(amountGive, amount) / amountGet);
        tokens[tokenGive][msg.sender] = safeAdd(tokens[tokenGive][msg.sender], safeMul(amountGive, amount) / amountGet);
      }
    
      function testTrade(address tokenGet, uint amountGet, address tokenGive, uint amountGive, uint expires, uint nonce, address user, uint8 v, bytes32 r, bytes32 s, uint amount, address sender) constant returns(bool) {
        if (!(
          tokens[tokenGet][sender] >= amount &&
          availableVolume(tokenGet, amountGet, tokenGive, amountGive, expires, nonce, user, v, r, s) >= amount
        )) return false;
        return true;
      }
    
      function availableVolume(address tokenGet, uint amountGet, address tokenGive, uint amountGive, uint expires, uint nonce, address user, uint8 v, bytes32 r, bytes32 s) constant returns(uint) {
        bytes32 hash = sha256(this, tokenGet, amountGet, tokenGive, amountGive, expires, nonce);
        if (!(
          (orders[user][hash] || ecrecover(sha3("\x19Ethereum Signed Message:\n32", hash),v,r,s) == user) &&
          block.number <= expires
        )) return 0;
        uint available1 = safeSub(amountGet, orderFills[user][hash]);
        uint available2 = safeMul(tokens[tokenGive][user], amountGet) / amountGive;
        if (available1<available2) return available1;
        return available2;
      }
    
      function amountFilled(address tokenGet, uint amountGet, address tokenGive, uint amountGive, uint expires, uint nonce, address user, uint8 v, bytes32 r, bytes32 s) constant returns(uint) {
        bytes32 hash = sha256(this, tokenGet, amountGet, tokenGive, amountGive, expires, nonce);
        return orderFills[user][hash];
      }
    
      function cancelOrder(address tokenGet, uint amountGet, address tokenGive, uint amountGive, uint expires, uint nonce, uint8 v, bytes32 r, bytes32 s) {
        bytes32 hash = sha256(this, tokenGet, amountGet, tokenGive, amountGive, expires, nonce);
        if (!(orders[msg.sender][hash] || ecrecover(sha3("\x19Ethereum Signed Message:\n32", hash),v,r,s) == msg.sender)) throw;
        orderFills[msg.sender][hash] = amountGet;
        Cancel(tokenGet, amountGet, tokenGive, amountGive, expires, nonce, msg.sender, v, r, s);
      }
    }

    File 2 of 2: TokenERC20
    pragma solidity ^0.4.16;
    
    interface tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) public; }
    
    contract TokenERC20 {
        // Public variables of the token
        string public name;
        string public symbol;
        uint8 public decimals = 18;
        // 18 decimals is the strongly suggested default, avoid changing it
        uint256 public totalSupply;
    
        // This creates an array with all balances
        mapping (address => uint256) public balanceOf;
        mapping (address => mapping (address => uint256)) public allowance;
    
        // This generates a public event on the blockchain that will notify clients
        event Transfer(address indexed from, address indexed to, uint256 value);
    
        // This notifies clients about the amount burnt
        event Burn(address indexed from, uint256 value);
    
        /**
         * Constructor function
         *
         * Initializes contract with initial supply tokens to the creator of the contract
         */
        function TokenERC20(
            uint256 initialSupply,
            string tokenName,
            string tokenSymbol
        ) public {
            totalSupply = initialSupply * 10 ** uint256(decimals);  // Update total supply with the decimal amount
            balanceOf[msg.sender] = totalSupply;                // Give the creator all initial tokens
            name = tokenName;                                   // Set the name for display purposes
            symbol = tokenSymbol;                               // Set the symbol for display purposes
        }
    
        /**
         * Internal transfer, only can be called by this contract
         */
        function _transfer(address _from, address _to, uint _value) internal {
            // Prevent transfer to 0x0 address. Use burn() instead
            require(_to != 0x0);
            // Check if the sender has enough
            require(balanceOf[_from] >= _value);
            // Check for overflows
            require(balanceOf[_to] + _value > balanceOf[_to]);
            // Save this for an assertion in the future
            uint previousBalances = balanceOf[_from] + balanceOf[_to];
            // Subtract from the sender
            balanceOf[_from] -= _value;
            // Add the same to the recipient
            balanceOf[_to] += _value;
            Transfer(_from, _to, _value);
            // Asserts are used to use static analysis to find bugs in your code. They should never fail
            assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
        }
    
        /**
         * Transfer tokens
         *
         * Send `_value` tokens to `_to` from your account
         *
         * @param _to The address of the recipient
         * @param _value the amount to send
         */
        function transfer(address _to, uint256 _value) public {
            _transfer(msg.sender, _to, _value);
        }
    
        /**
         * Transfer tokens from other address
         *
         * Send `_value` tokens to `_to` on behalf of `_from`
         *
         * @param _from The address of the sender
         * @param _to The address of the recipient
         * @param _value the amount to send
         */
        function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
            require(_value <= allowance[_from][msg.sender]);     // Check allowance
            allowance[_from][msg.sender] -= _value;
            _transfer(_from, _to, _value);
            return true;
        }
    
        /**
         * Set allowance for other address
         *
         * Allows `_spender` to spend no more than `_value` tokens on your behalf
         *
         * @param _spender The address authorized to spend
         * @param _value the max amount they can spend
         */
        function approve(address _spender, uint256 _value) public
            returns (bool success) {
            allowance[msg.sender][_spender] = _value;
            return true;
        }
    
        /**
         * Set allowance for other address and notify
         *
         * Allows `_spender` to spend no more than `_value` tokens on your behalf, and then ping the contract about it
         *
         * @param _spender The address authorized to spend
         * @param _value the max amount they can spend
         * @param _extraData some extra information to send to the approved contract
         */
        function approveAndCall(address _spender, uint256 _value, bytes _extraData)
            public
            returns (bool success) {
            tokenRecipient spender = tokenRecipient(_spender);
            if (approve(_spender, _value)) {
                spender.receiveApproval(msg.sender, _value, this, _extraData);
                return true;
            }
        }
    
        /**
         * Destroy tokens
         *
         * Remove `_value` tokens from the system irreversibly
         *
         * @param _value the amount of money to burn
         */
        function burn(uint256 _value) public returns (bool success) {
            require(balanceOf[msg.sender] >= _value);   // Check if the sender has enough
            balanceOf[msg.sender] -= _value;            // Subtract from the sender
            totalSupply -= _value;                      // Updates totalSupply
            Burn(msg.sender, _value);
            return true;
        }
    
        /**
         * Destroy tokens from other account
         *
         * Remove `_value` tokens from the system irreversibly on behalf of `_from`.
         *
         * @param _from the address of the sender
         * @param _value the amount of money to burn
         */
        function burnFrom(address _from, uint256 _value) public returns (bool success) {
            require(balanceOf[_from] >= _value);                // Check if the targeted balance is enough
            require(_value <= allowance[_from][msg.sender]);    // Check allowance
            balanceOf[_from] -= _value;                         // Subtract from the targeted balance
            allowance[_from][msg.sender] -= _value;             // Subtract from the sender's allowance
            totalSupply -= _value;                              // Update totalSupply
            Burn(_from, _value);
            return true;
        }
    }