Contract Overview |  TokenStore
Balance: 1,465.784321213387624214 Ether
Ether Value: $133,914.06 (@ $91.36/ETH)
Transactions: 467117 txns
Misc:
Address Watch: Add To Watch List
Contract Creator: 0x44a93f553bd529c19386b2ddfa30f458b0bc3b20at txn 0x386439acefbf00018b318f283a9ebc6185c483ff6738117243dba40fc1b42bb6
Token Balance:
 Latest 25 transactions from a total of 467117 transactions
(+16 PendingTxns)

TxHash Age From To Value [TxFee]
0xcf8c48bb49342a678d29a5fd1e85d0bf1a9961ed1d38bb857dcf6d79b9092ac5(pending)0xbec187295e5476c1032926c18c2488775328d98e  IN  0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80 Ether(Pending)
0xcd49f8fa7c27d92addaff855aa0dfda89d2ed4df3059b49c5bb83e86044d4bb2(pending)0x203ea92578da70b60f15f1b545ba9487c6d38b3e  IN  0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80 Ether(Pending)
0x2d9b790a235f738e037515362d9f648904e0d04611df5de7895c7adbec7f2e06(pending)0x83662ad3c0a738a3e8776890fbed13198854dc3f  IN  0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80 Ether(Pending)
0x3e2c1f9e4f71ce2cc27cf0cd02a492d6f6f6cdaa5b154bf732a07f786e524b5c(pending)0x188de4b8f15e0d1f05cbbb0d9f1cc1e683c37711  IN  0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80 Ether(Pending)
0x965c4a5d01a875f5d04445632e742ddbfc8c9604ec1efe02de815011966b380e(pending)0x28307fb40bf4e571be4ebbbb813610dab82fe4a6  IN  0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80 Ether(Pending)
0xba1f504747230012bff783c168471130db9bae1994f23668baa49932eb9b74b1(pending)0x99ae027f479d689e1e17b02de33977388fa951d2  IN  0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80 Ether(Pending)
0x4a8cf995ddf8a82277ba6f198499cd6e746f2c019362cb0fd8438c6eb67aadca(pending)0xc3aca9e1e8fc62f2e2f799fc9159751ea547f391  IN  0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80 Ether(Pending)
0x53502789f00935b224864782e0c5e0ae53c2e7ce10ff6fdded0e9d565ab020d6(pending)0x8e43338835136bba0067b7ed7ef5636e2359b7ae  IN  0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80 Ether(Pending)
0x36771b8e8381fdc81c42ea5a29930379c510df86c241ba15cefea07777c7d347(pending)0x8e43338835136bba0067b7ed7ef5636e2359b7ae  IN  0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80 Ether(Pending)
0x6e3830b176ee10bd66044a323c456ac388e504ff1e92420647475cf0f8cb9f02(pending)0x8e43338835136bba0067b7ed7ef5636e2359b7ae  IN  0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80 Ether(Pending)
0x30b26da7d86c1b124e0482b9cfb260ca2e513b0fb31cc537846279128d038719(pending)0x8e43338835136bba0067b7ed7ef5636e2359b7ae  IN  0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80 Ether(Pending)
0xdcf7ac3c010805a6bb6446d0fa3fe53e7a4c576e82ff9d436adc223388de01c2(pending)0x6568f12aaab8eaceedadee4b310dd21609501f52  IN  0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80 Ether(Pending)
0xf34fa748cadc69ad2d749e78585d051aa8ab1c23303f3df6121bbedecfe8de82(pending)0x56b1c1c6819ef330b1c5ea8065c03a357d81c240  IN  0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80 Ether(Pending)
0x899b5cf31cee1b005b816ae7c4b285aa171b6fee466fa4ed07c13715301707ce(pending)0x203ea92578da70b60f15f1b545ba9487c6d38b3e  IN  0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80 Ether(Pending)
0xa5c3dd24358f0ccdd0fefdb709a1cb3b19d3e86054ddb408a561d335e5d5210a(pending)0x8e43338835136bba0067b7ed7ef5636e2359b7ae  IN  0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80 Ether(Pending)
0x20e7ff6e826885896f5384b5a934e5ca24f074aa8f491ad2437068eb1311716c(pending)0xa6eb8bb92af1ba6fbd5637a8213f55897995fbd0  IN  0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80 Ether(Pending)
0x66a9a3723a76b63335ee93a70c9f86f94e85ae895d5040775b58355553a91990 37 secs ago0xf90ca0671954e9bb83670d856576fa16c04f2a21  IN   TokenStore0 Ether0.000177192
0x5ee77244657875730c72c4b9613519ea22c2dcaf9c8bba8d1099026f590fcd7b7 mins ago0xc0d0928a77cc08b9b88f2fd23d5c3529ddcb1001  IN   TokenStore0 Ether0.000145473
0xb72ba19a9a9a577821d077a93cd476e544376cf3c9f84ff192c04178501282a77 mins ago0x669967efb1e4dc58f10539e7e8719186c5f84d54  IN   TokenStore0 Ether0.001254114
0xf29bfc2ccceb9e6c6b8faee47eb2b96d33c3aef1fd5aa630a022245bca0c72318 mins ago0xe4d3467f626d1b18975b0d8154963f3e4e4387f0  IN   TokenStore5.814 Ether0.0000717864
0x8d1c5865e8596e8daa7774f6ec08ce993f801b2fffe8163f2bdae37d44c0b62e8 mins ago0x80b2e3229558acbd2b0185fee160fd08eb7592cf  IN   TokenStore0 Ether0.000132
0x60a22c84ee7b3dd3b1f2ea602c6776ad6826df0454326830519c1d920ae3d59a8 mins ago0xf442978424bf716773d668ce290aaa99669cf908  IN   TokenStore0 Ether0.00013104
0x220f9b5a35048625ada04a9b418b2b71f993a6027b672b32aaae456474a7b23e8 mins ago0xf90ca0671954e9bb83670d856576fa16c04f2a21  IN   TokenStore0 Ether0.0001012
0xe00e27479e3a66667d39a22cbc48c8a30d0e4c89033940ff541c7af33430d1ca9 mins ago0x73b9a531dcde3f4bb7f44c4e04e00348c74c4f17  IN   TokenStore0.01 Ether0.0000687953
0xbfe381ad8e0b43798fbc8b750249e365653180e878e07a5e27c48e27328c46559 mins ago0x80b2e3229558acbd2b0185fee160fd08eb7592cf  IN   TokenStore0 Ether0.000132
[ Download CSV Export  ] 
 Internal Transactions as a result of Contract Execution
 Latest 25 Internal Txns, Click here To View More View All
ParentTxHash Block Age From To Value
0xb11959d0a6a798e7b128bafc331feac61c7a8bc5045431dcc50e52eba618df8d68749948 mins ago0xe17dbb844ba602e189889d941d1297184ce636640x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80.000000092368 Ether
0x0c1523d5a275b43526d62ff9a2b24537de05b4a40e2614c1e2f3a11523546f6868749938 mins ago0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80xe17dbb844ba602e189889d941d1297184ce636640.01800002276 Ether
0x412172a16abf8cd4b551fffc5b1545064fc47bced03aac33ac42e7a47734a61a68749938 mins ago0xe17dbb844ba602e189889d941d1297184ce636640x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80.00000092368 Ether
0x2e4451a10836590b278c447287ff73c87a9ff8558992cad3a4ed367de85b795c68749938 mins ago0xe17dbb844ba602e189889d941d1297184ce636640x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80.00000092368 Ether
0x615345277d5df5606ab78a2fdd2e936f054a7a8a755c5c33b778cde54bf10c4a68749938 mins ago0xe17dbb844ba602e189889d941d1297184ce636640x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80.00000092368 Ether
0x6796c25538bf15a40f92640588fb0131763dcb442f66a1f45ad3aa0aa249a196687494719 mins ago0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80x83fbd8dee540ef99e5766aabd0c917a1992df37c0.07 Ether
0x6f6ae848a53010148f799c58340cd0ded8629d838fdb85b07b30ca0f927a17f7687494320 mins ago0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80x87de1e5fe602088106751ce5f3486406f023a6bd1.341 Ether
0xa0892ae975f81eea017eb24d4a52222a128f8d1c0eb08bdda5c832502aab81a6687494120 mins ago0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80x8c00766e04d224a23f7efecee555758b014beec60.0212 Ether
0x8c1d9e1e5ea412e386cea8794d318f5a600c09de336b41cea1790316430b087e687488034 mins ago0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80x6cb9ad9ad3395debe26bbf0fb0af6c8b593eb4560.5 Ether
0x70e33bae69121d7ee7f4e6e4095005d7ba402cfb7c423b572a474f52c0e7a5eb687483246 mins ago0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80xe17dbb844ba602e189889d941d1297184ce636640.01000001 Ether
0xd99b7810b038100bf78d32d4d85d924578d857839cfbc51453268b18ca557c1f687481351 mins ago0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80x3bbb237d0953df3f44cd5b5c09462c6220a569b82 Ether
0x00885017de54feafea02cf4c76d35d84354a22c9b9160998b4861f19725ff5bb68747351 hr 12 mins ago0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80xbbdac9a9d7578361ab9caab216bd63f04c13e4510.445 Ether
0x4f003132946e9536643edd1d18a9acec117be372749679d2748aa8a393047fae68747141 hr 16 mins ago0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80x3e24031e5098e7a966c861495372c7ea678739000.00003 Ether
0xecac80aa108902582b3d637b429cc889009fab970bf75f8747993644f311372668747101 hr 18 mins ago0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80x3e24031e5098e7a966c861495372c7ea678739000.0942 Ether
0xb0dab8cf1dff10515dcd15798885e874be894671727c8bc247cdb18b66f0518268746751 hr 26 mins ago0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80x87de1e5fe602088106751ce5f3486406f023a6bd0.02201 Ether
0xda1f3764aad940f6773c12db45217b5013c8948a489e3030c5fed2cc99464be268745951 hr 47 mins ago0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80xe17dbb844ba602e189889d941d1297184ce636640.0318295132 Ether
0xcf7a32a0cdb6f286453326dbdace22a6d33d7eddb630fcc3cf1cc610f118dd8a68745461 hr 56 mins ago0xe17dbb844ba602e189889d941d1297184ce636640x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80.04651532 Ether
0x458f07140c10568c00665199addb580b81ec48c2e6c5d58b0549b84edf5c956068745212 hrs ago0xe17dbb844ba602e189889d941d1297184ce636640x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80.0915479328 Ether
0xf1e9583e4627bbc7fc170d9661ecf90f98ae14ea4bdbd6d95fa4c85d7eaaf3e968743742 hrs 34 mins ago0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80xe17dbb844ba602e189889d941d1297184ce636640.52 Ether
0xafd65eaaef81a7400d08122056eda27d4755f9932f16b0dc1b9d1ba7d289b5a768743742 hrs 34 mins ago0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80xe17dbb844ba602e189889d941d1297184ce636640.091542357663661694 Ether
0x894e2f6bc410ff45e98781638bc5eeabc5a0efcd0f5eaeee97fba2c162473fda68743662 hrs 37 mins ago0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80x634b69e82e9a2e37c58bed878233017372b1033d3.34 Ether
0x84dfa444594285f67a4b5a9bee55c82e1c41928774fd56fd428e2d65279ba33368743612 hrs 38 mins ago0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80xe17dbb844ba602e189889d941d1297184ce636640.0130965592514 Ether
0x7d73b0c1386d8c522c8a0c4c8c310f7b7d2b8e8f065db4aaba6ad2ab3ab9932568743092 hrs 50 mins ago0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80x85c5c26dc2af5546341fc1988b9d178148b4838b0.085733399980062 Ether
0x7d73b0c1386d8c522c8a0c4c8c310f7b7d2b8e8f065db4aaba6ad2ab3ab9932568743092 hrs 50 mins ago0x85c5c26dc2af5546341fc1988b9d178148b4838b0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80.0786993543690354 Ether
0xe068988f562344c9832b21243774f45cfbed5b9445c9b6bd3590e9a0ca0307fa68743002 hrs 53 mins ago0x1ce7ae555139c5ef5a57cc8d814a867ee6ee33d80x80b2e3229558acbd2b0185fee160fd08eb7592cf0.009 Ether
[ Download CSV Export  ] 
Contract Name: TokenStore
Compiler Text: v0.4.13+commit.fb4cb1a
Optimization Enabled: Yes
Runs (Optimiser):  200



  Contract Source Code   Find Similiar Contracts

pragma solidity ^0.4.11;

// ERC20 token protocol, see more details at
// https://theethereum.wiki/w/index.php/ERC20_Token_Standard
// And also https://github.com/ethereum/eips/issues/20

contract Token {
  function totalSupply() constant returns (uint256 supply);
  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);

  event Transfer(address indexed _from, address indexed _to, uint256 _value);
  event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}

// Safe mathematics to make the code more readable

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;
  }
}

// Ownable interface to simplify owner checks

contract Ownable {
  address public owner;

  function Ownable() {
    owner = msg.sender;
  }

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

  function transferOwnership(address _newOwner) onlyOwner {
    require(_newOwner != address(0));
    owner = _newOwner;
  }
}

// Interface for trading discounts and rebates for specific accounts

contract AccountModifiersInterface {
  function accountModifiers(address _user) constant returns(uint takeFeeDiscount, uint rebatePercentage);
  function tradeModifiers(address _maker, address _taker) constant returns(uint takeFeeDiscount, uint rebatePercentage);
}

// Interface for trade tacker

contract TradeTrackerInterface {
  function tradeComplete(address _tokenGet, uint _amountGet, address _tokenGive, uint _amountGive, address _get, address _give, uint _takerFee, uint _makerRebate);
}

// Exchange contract

contract TokenStore is SafeMath, Ownable {

  // The account that will receive fees
  address feeAccount;

  // The account that stores fee discounts/rebates
  address accountModifiers;
  
  // Trade tracker account
  address tradeTracker;

  // We charge only the takers and this is the fee, percentage times 1 ether
  uint public fee;

  // Mapping of token addresses to mapping of account balances (token 0 means Ether)
  mapping (address => mapping (address => uint)) public tokens;

  // Mapping of user accounts to mapping of order hashes to uints (amount of order that has been filled)
  mapping (address => mapping (bytes32 => uint)) public orderFills;
  
  // Address of a next and previous versions of the contract, also status of the contract
  // can be used for user-triggered fund migrations
  address public successor;
  address public predecessor;
  bool public deprecated;
  uint16 public version;

  // Logging events
  // Note: Order creation is handled off-chain, see explanation further below
  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, uint nonce);
  event Deposit(address token, address user, uint amount, uint balance);
  event Withdraw(address token, address user, uint amount, uint balance);
  event FundsMigrated(address user);

  function TokenStore(uint _fee, address _predecessor) {
    feeAccount = owner;
    fee = _fee;
    predecessor = _predecessor;
    deprecated = false;
    if (predecessor != address(0)) {
      version = TokenStore(predecessor).version() + 1;
    } else {
      version = 1;
    }
  }

  // Throw on default handler to prevent direct transactions of Ether
  function() {
    revert();
  }
  
  modifier deprecable() {
    require(!deprecated);
    _;
  }

  function deprecate(bool _deprecated, address _successor) onlyOwner {
    deprecated = _deprecated;
    successor = _successor;
  }

  function changeFeeAccount(address _feeAccount) onlyOwner {
    require(_feeAccount != address(0));
    feeAccount = _feeAccount;
  }

  function changeAccountModifiers(address _accountModifiers) onlyOwner {
    accountModifiers = _accountModifiers;
  }
  
  function changeTradeTracker(address _tradeTracker) onlyOwner {
    tradeTracker = _tradeTracker;
  }

  // Fee can only be decreased!
  function changeFee(uint _fee) onlyOwner {
    require(_fee <= fee);
    fee = _fee;
  }
  
  // Allows a user to get her current discount/rebate
  function getAccountModifiers() constant returns(uint takeFeeDiscount, uint rebatePercentage) {
    if (accountModifiers != address(0)) {
      return AccountModifiersInterface(accountModifiers).accountModifiers(msg.sender);
    } else {
      return (0, 0);
    }
  }
  
  ////////////////////////////////////////////////////////////////////////////////
  // Deposits, withdrawals, balances
  ////////////////////////////////////////////////////////////////////////////////

  function deposit() payable deprecable {
    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) {
    require(tokens[0][msg.sender] >= _amount);
    tokens[0][msg.sender] = safeSub(tokens[0][msg.sender], _amount);
    if (!msg.sender.call.value(_amount)()) {
      revert();
    }
    Withdraw(0, msg.sender, _amount, tokens[0][msg.sender]);
  }

  function depositToken(address _token, uint _amount) deprecable {
    // Note that Token(_token).approve(this, _amount) needs to be called
    // first or this contract will not be able to do the transfer.
    require(_token != 0);
    if (!Token(_token).transferFrom(msg.sender, this, _amount)) {
      revert();
    }
    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) {
    require(_token != 0);
    require(tokens[_token][msg.sender] >= _amount);
    tokens[_token][msg.sender] = safeSub(tokens[_token][msg.sender], _amount);
    if (!Token(_token).transfer(msg.sender, _amount)) {
      revert();
    }
    Withdraw(_token, msg.sender, _amount, tokens[_token][msg.sender]);
  }

  function balanceOf(address _token, address _user) constant returns (uint) {
    return tokens[_token][_user];
  }
  
  ////////////////////////////////////////////////////////////////////////////////
  // Trading
  ////////////////////////////////////////////////////////////////////////////////

  // Note: Order creation happens off-chain but the orders are signed by creators,
  // we validate the contents and the creator address in the logic below

  function trade(address _tokenGet, uint _amountGet, address _tokenGive, uint _amountGive,
      uint _expires, uint _nonce, address _user, uint8 _v, bytes32 _r, bytes32 _s, uint _amount) {
    bytes32 hash = sha256(this, _tokenGet, _amountGet, _tokenGive, _amountGive, _expires, _nonce);
    // Check order signatures and expiration, also check if not fulfilled yet
		if (ecrecover(sha3("\x19Ethereum Signed Message:\n32", hash), _v, _r, _s) != _user ||
      block.number > _expires ||
      safeAdd(orderFills[_user][hash], _amount) > _amountGet) {
      revert();
    }
    tradeBalances(_tokenGet, _amountGet, _tokenGive, _amountGive, _user, msg.sender, _amount);
    orderFills[_user][hash] = safeAdd(orderFills[_user][hash], _amount);
    Trade(_tokenGet, _amount, _tokenGive, _amountGive * _amount / _amountGet, _user, msg.sender, _nonce);
  }
  
  function tradeBalances(address _tokenGet, uint _amountGet, address _tokenGive, uint _amountGive,
      address _user, address _caller, uint _amount) private {

    uint feeTakeValue = safeMul(_amount, fee) / (1 ether);
    uint rebateValue = 0;
    uint tokenGiveValue = safeMul(_amountGive, _amount) / _amountGet; // Proportionate to request ratio

    // Apply modifiers
    if (accountModifiers != address(0)) {
      var (feeTakeDiscount, rebatePercentage) = AccountModifiersInterface(accountModifiers).tradeModifiers(_user, _caller);
      // Check that the discounts/rebates are never higher then 100%
      if (feeTakeDiscount > 100) {
        feeTakeDiscount = 0;
      }
      if (rebatePercentage > 100) {
        rebatePercentage = 0;
      }
      feeTakeValue = safeMul(feeTakeValue, 100 - feeTakeDiscount) / 100;  // discounted fee
      rebateValue = safeMul(rebatePercentage, feeTakeValue) / 100;        // % of actual taker fee
    }
    
    tokens[_tokenGet][_user] = safeAdd(tokens[_tokenGet][_user], safeAdd(_amount, rebateValue));
    tokens[_tokenGet][_caller] = safeSub(tokens[_tokenGet][_caller], safeAdd(_amount, feeTakeValue));
    tokens[_tokenGive][_user] = safeSub(tokens[_tokenGive][_user], tokenGiveValue);
    tokens[_tokenGive][_caller] = safeAdd(tokens[_tokenGive][_caller], tokenGiveValue);
    tokens[_tokenGet][feeAccount] = safeAdd(tokens[_tokenGet][feeAccount], safeSub(feeTakeValue, rebateValue));
    
    if (tradeTracker != address(0)) {
      TradeTrackerInterface(tradeTracker).tradeComplete(_tokenGet, _amount, _tokenGive, tokenGiveValue, _user, _caller, feeTakeValue, rebateValue);
    }
  }

  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 (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) 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 (!(ecrecover(sha3("\x19Ethereum Signed Message:\n32", hash), _v, _r, _s) == msg.sender)) {
      revert();
    }
    orderFills[msg.sender][hash] = _amountGet;
    Cancel(_tokenGet, _amountGet, _tokenGive, _amountGive, _expires, _nonce, msg.sender, _v, _r, _s);
  }
  
  ////////////////////////////////////////////////////////////////////////////////
  // Migrations
  ////////////////////////////////////////////////////////////////////////////////

  // User-triggered (!) fund migrations in case contract got updated
  // Similar to withdraw but we use a successor account instead
  // As we don't store user tokens list on chain, it has to be passed from the outside
  function migrateFunds(address[] _tokens) {
  
    // Get the latest successor in the chain
    require(successor != address(0));
    TokenStore newExchange = TokenStore(successor);
    for (uint16 n = 0; n < 20; n++) {  // We will look past 20 contracts in the future
      address nextSuccessor = newExchange.successor();
      if (nextSuccessor == address(this)) {  // Circular succession
        revert();
      }
      if (nextSuccessor == address(0)) { // We reached the newest, stop
        break;
      }
      newExchange = TokenStore(nextSuccessor);
    }

    // Ether
    uint etherAmount = tokens[0][msg.sender];
    if (etherAmount > 0) {
      tokens[0][msg.sender] = 0;
      newExchange.depositForUser.value(etherAmount)(msg.sender);
    }

    // Tokens
    for (n = 0; n < _tokens.length; n++) {
      address token = _tokens[n];
      require(token != address(0)); // 0 = Ether, we handle it above
      uint tokenAmount = tokens[token][msg.sender];
      if (tokenAmount == 0) {
        continue;
      }
      if (!Token(token).approve(newExchange, tokenAmount)) {
        revert();
      }
      tokens[token][msg.sender] = 0;
      newExchange.depositTokenForUser(token, tokenAmount, msg.sender);
    }

    FundsMigrated(msg.sender);
  }

  // This is used for migrations only. To be called by previous exchange only,
  // user-triggered, on behalf of the user called the migrateFunds method.
  // Note that it does exactly the same as depositToken, but as this is called
  // by a previous generation of exchange itself, we credit internally not the
  // previous exchange, but the user it was called for.
  function depositForUser(address _user) payable deprecable {
    require(_user != address(0));
    require(msg.value > 0);
    TokenStore caller = TokenStore(msg.sender);
    require(caller.version() > 0); // Make sure it's an exchange account
    tokens[0][_user] = safeAdd(tokens[0][_user], msg.value);
  }

  function depositTokenForUser(address _token, uint _amount, address _user) deprecable {
    require(_token != address(0));
    require(_user != address(0));
    require(_amount > 0);
    TokenStore caller = TokenStore(msg.sender);
    require(caller.version() > 0); // Make sure it's an exchange account
    if (!Token(_token).transferFrom(msg.sender, this, _amount)) {
      revert();
    }
    tokens[_token][_user] = safeAdd(tokens[_token][_user], _amount);
  }
}

    Contract ABI  
[{"constant":false,"inputs":[{"name":"_tokenGet","type":"address"},{"name":"_amountGet","type":"uint256"},{"name":"_tokenGive","type":"address"},{"name":"_amountGive","type":"uint256"},{"name":"_expires","type":"uint256"},{"name":"_nonce","type":"uint256"},{"name":"_user","type":"address"},{"name":"_v","type":"uint8"},{"name":"_r","type":"bytes32"},{"name":"_s","type":"bytes32"},{"name":"_amount","type":"uint256"}],"name":"trade","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"deprecated","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"},{"name":"","type":"bytes32"}],"name":"orderFills","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_tokenGet","type":"address"},{"name":"_amountGet","type":"uint256"},{"name":"_tokenGive","type":"address"},{"name":"_amountGive","type":"uint256"},{"name":"_expires","type":"uint256"},{"name":"_nonce","type":"uint256"},{"name":"_v","type":"uint8"},{"name":"_r","type":"bytes32"},{"name":"_s","type":"bytes32"}],"name":"cancelOrder","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_tokenGet","type":"address"},{"name":"_amountGet","type":"uint256"},{"name":"_tokenGive","type":"address"},{"name":"_amountGive","type":"uint256"},{"name":"_expires","type":"uint256"},{"name":"_nonce","type":"uint256"},{"name":"_user","type":"address"}],"name":"amountFilled","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_amount","type":"uint256"}],"name":"withdraw","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_token","type":"address"},{"name":"_amount","type":"uint256"}],"name":"depositToken","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_accountModifiers","type":"address"}],"name":"changeAccountModifiers","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_token","type":"address"},{"name":"_amount","type":"uint256"},{"name":"_user","type":"address"}],"name":"depositTokenForUser","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_tradeTracker","type":"address"}],"name":"changeTradeTracker","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"},{"name":"","type":"address"}],"name":"tokens","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"version","outputs":[{"name":"","type":"uint16"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"getAccountModifiers","outputs":[{"name":"takeFeeDiscount","type":"uint256"},{"name":"rebatePercentage","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_fee","type":"uint256"}],"name":"changeFee","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_user","type":"address"}],"name":"depositForUser","outputs":[],"payable":true,"type":"function"},{"constant":true,"inputs":[{"name":"_tokenGet","type":"address"},{"name":"_amountGet","type":"uint256"},{"name":"_tokenGive","type":"address"},{"name":"_amountGive","type":"uint256"},{"name":"_expires","type":"uint256"},{"name":"_nonce","type":"uint256"},{"name":"_user","type":"address"},{"name":"_v","type":"uint8"},{"name":"_r","type":"bytes32"},{"name":"_s","type":"bytes32"},{"name":"_amount","type":"uint256"},{"name":"_sender","type":"address"}],"name":"testTrade","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"successor","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_feeAccount","type":"address"}],"name":"changeFeeAccount","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_token","type":"address"},{"name":"_amount","type":"uint256"}],"name":"withdrawToken","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"predecessor","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_tokens","type":"address[]"}],"name":"migrateFunds","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"deposit","outputs":[],"payable":true,"type":"function"},{"constant":true,"inputs":[],"name":"fee","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_deprecated","type":"bool"},{"name":"_successor","type":"address"}],"name":"deprecate","outputs":[],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_token","type":"address"},{"name":"_user","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_tokenGet","type":"address"},{"name":"_amountGet","type":"uint256"},{"name":"_tokenGive","type":"address"},{"name":"_amountGive","type":"uint256"},{"name":"_expires","type":"uint256"},{"name":"_nonce","type":"uint256"},{"name":"_user","type":"address"},{"name":"_v","type":"uint8"},{"name":"_r","type":"bytes32"},{"name":"_s","type":"bytes32"}],"name":"availableVolume","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"inputs":[{"name":"_fee","type":"uint256"},{"name":"_predecessor","type":"address"}],"payable":false,"type":"constructor"},{"payable":false,"type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"tokenGet","type":"address"},{"indexed":false,"name":"amountGet","type":"uint256"},{"indexed":false,"name":"tokenGive","type":"address"},{"indexed":false,"name":"amountGive","type":"uint256"},{"indexed":false,"name":"expires","type":"uint256"},{"indexed":false,"name":"nonce","type":"uint256"},{"indexed":false,"name":"user","type":"address"},{"indexed":false,"name":"v","type":"uint8"},{"indexed":false,"name":"r","type":"bytes32"},{"indexed":false,"name":"s","type":"bytes32"}],"name":"Cancel","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"tokenGet","type":"address"},{"indexed":false,"name":"amountGet","type":"uint256"},{"indexed":false,"name":"tokenGive","type":"address"},{"indexed":false,"name":"amountGive","type":"uint256"},{"indexed":false,"name":"get","type":"address"},{"indexed":false,"name":"give","type":"address"},{"indexed":false,"name":"nonce","type":"uint256"}],"name":"Trade","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"token","type":"address"},{"indexed":false,"name":"user","type":"address"},{"indexed":false,"name":"amount","type":"uint256"},{"indexed":false,"name":"balance","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"token","type":"address"},{"indexed":false,"name":"user","type":"address"},{"indexed":false,"name":"amount","type":"uint256"},{"indexed":false,"name":"balance","type":"uint256"}],"name":"Withdraw","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"user","type":"address"}],"name":"FundsMigrated","type":"event"}]

  Contract Creation Code Switch To Opcodes View
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    Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000000000000000000000000000000aa87bee5380000000000000000000000000000000000000000000000000000000000000000000

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000000000000000000000000000000aa87bee538000
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000000


   Swarm Source:
bzzr://77f218d396cd040a425e3dc0d8a1d2b99db2d2b265a225a4134ec6bed3adc381

 

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