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diff --git a/packages/contracts/src/1.0.0/Arbitrage/Arbitrage.sol b/packages/contracts/src/1.0.0/Arbitrage/Arbitrage.sol
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-pragma solidity ^0.4.19;
-
-import { IExchange_v1 as Exchange } from "../Exchange/IExchange_v1.sol";
-import { EtherDelta } from "../EtherDelta/EtherDelta.sol";
-import { Ownable_v1 as Ownable } from "../Ownable/Ownable_v1.sol";
-import { IToken_v1 as Token } from "../Token/IToken_v1.sol";
-
-/// @title Arbitrage - Facilitates atomic arbitrage of ERC20 tokens between EtherDelta and 0x Exchange contract.
-/// @author Leonid Logvinov - <leo@0xProject.com>
-contract Arbitrage is Ownable {
-
- Exchange exchange;
- EtherDelta etherDelta;
- address proxyAddress;
-
- uint256 constant MAX_UINT = 2**256 - 1;
-
- function Arbitrage(address _exchangeAddress, address _etherDeltaAddress, address _proxyAddress) {
- exchange = Exchange(_exchangeAddress);
- etherDelta = EtherDelta(_etherDeltaAddress);
- proxyAddress = _proxyAddress;
- }
-
- /*
- * Makes token tradeable by setting an allowance for etherDelta and 0x proxy contract.
- * Also sets an allowance for the owner of the contracts therefore allowing to withdraw tokens.
- */
- function setAllowances(address tokenAddress) external onlyOwner {
- Token token = Token(tokenAddress);
- token.approve(address(etherDelta), MAX_UINT);
- token.approve(proxyAddress, MAX_UINT);
- token.approve(owner, MAX_UINT);
- }
-
- /*
- * Because of the limits on the number of local variables in Solidity we need to compress parameters while loosing
- * readability. Scheme of the parameter layout:
- *
- * addresses
- * 0..4 orderAddresses
- * 5 user
- *
- * values
- * 0..5 orderValues
- * 6 fillTakerTokenAmount
- * 7 amountGet
- * 8 amountGive
- * 9 expires
- * 10 nonce
- * 11 amount
-
- * signature
- * exchange then etherDelta
- */
- function makeAtomicTrade(
- address[6] addresses, uint[12] values,
- uint8[2] v, bytes32[2] r, bytes32[2] s
- ) external onlyOwner {
- makeExchangeTrade(addresses, values, v, r, s);
- makeEtherDeltaTrade(addresses, values, v, r, s);
- }
-
- function makeEtherDeltaTrade(
- address[6] addresses, uint[12] values,
- uint8[2] v, bytes32[2] r, bytes32[2] s
- ) internal {
- uint amount = values[11];
- etherDelta.depositToken(
- addresses[2], // tokenGet === makerToken
- values[7] // amountGet
- );
- etherDelta.trade(
- addresses[2], // tokenGet === makerToken
- values[7], // amountGet
- addresses[3], // tokenGive === takerToken
- values[8], // amountGive
- values[9], // expires
- values[10], // nonce
- addresses[5], // user
- v[1],
- r[1],
- s[1],
- amount
- );
- etherDelta.withdrawToken(
- addresses[3], // tokenGive === tokenToken
- values[8] // amountGive
- );
- }
-
- function makeExchangeTrade(
- address[6] addresses, uint[12] values,
- uint8[2] v, bytes32[2] r, bytes32[2] s
- ) internal {
- address[5] memory orderAddresses = [
- addresses[0], // maker
- addresses[1], // taker
- addresses[2], // makerToken
- addresses[3], // takerToken
- addresses[4] // feeRecepient
- ];
- uint[6] memory orderValues = [
- values[0], // makerTokenAmount
- values[1], // takerTokenAmount
- values[2], // makerFee
- values[3], // takerFee
- values[4], // expirationTimestampInSec
- values[5] // salt
- ];
- uint fillTakerTokenAmount = values[6]; // fillTakerTokenAmount
- // Execute Exchange trade. It either succeeds in full or fails and reverts all the changes.
- exchange.fillOrKillOrder(orderAddresses, orderValues, fillTakerTokenAmount, v[0], r[0], s[0]);
- }
-}