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pragma solidity ^0.5.7; | ||
pragma solidity ^0.5.8; | ||
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import "openzeppelin-solidity/contracts/ownership/Ownable.sol"; | ||
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pragma solidity ^0.5.8; | ||
pragma experimental ABIEncoderV2; | ||
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import "iexec-doracle-base/contracts/IexecInterface.sol"; | ||
import "iexec-solidity/contracts/ERC20_Token/ERC20.sol"; | ||
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contract IexecRequesterProxy is IexecInterface, ERC20 | ||
{ | ||
IERC20 public baseToken; | ||
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using IexecODBLibOrders for bytes32; | ||
using IexecODBLibOrders for IexecODBLibOrders.RequestOrder; | ||
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struct OrderDetail | ||
{ | ||
uint256 maxprice; | ||
address requester; | ||
} | ||
mapping(bytes32 => OrderDetail) m_orderDetails; | ||
mapping(bytes32 => bool) m_dealUnlocked; | ||
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// Use _iexecHubAddr to force use of custom iexechub, leave 0x0 for autodetect | ||
constructor(address _iexecHubAddr) | ||
public IexecInterface(_iexecHubAddr) | ||
{ | ||
baseToken = iexecClerk.token(); | ||
} | ||
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function deposit(uint256 _amount) | ||
external returns (bool) | ||
{ | ||
require(baseToken.transferFrom(msg.sender, address(this), _amount)); | ||
require(baseToken.approve(address(iexecClerk), _amount)); | ||
require(iexecClerk.deposit(_amount)); | ||
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_mint(msg.sender, _amount); | ||
return true; | ||
} | ||
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function depositFor(uint256 _amount, address _target) | ||
public returns (bool) | ||
{ | ||
require(_target != address(0)); | ||
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require(baseToken.transferFrom(msg.sender, address(this), _amount)); | ||
require(baseToken.approve(address(iexecClerk), _amount)); | ||
require(iexecClerk.deposit(_amount)); | ||
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_mint(_target, _amount); | ||
return true; | ||
} | ||
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function submit(IexecODBLibOrders.RequestOrder memory order) | ||
public | ||
{ | ||
// compute order price and total necessary lock. | ||
uint256 maxprice = order.appmaxprice | ||
.add(order.datasetmaxprice) | ||
.add(order.workerpoolmaxprice); | ||
uint256 lock = maxprice.mul(order.volume); | ||
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// lock price from requester | ||
_transfer(msg.sender, address(this), lock); | ||
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// record details for refund of unspent tokens | ||
bytes32 requestorderHash = order.hash().toEthTypedStructHash(iexecClerk.EIP712DOMAIN_SEPARATOR()); | ||
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OrderDetail storage od = m_orderDetails[requestorderHash]; | ||
require(od.requester == address(0)); | ||
od.maxprice = maxprice; | ||
od.requester = msg.sender; | ||
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// set requester | ||
order.requester = address(this); | ||
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// sign and broadcast | ||
iexecClerk.signRequestOrder(order); | ||
iexecClerk.broadcastRequestOrder(order); | ||
} | ||
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function cancel(IexecODBLibOrders.RequestOrder memory order) | ||
public | ||
{ | ||
bytes32 requestorderHash = order.hash().toEthTypedStructHash(iexecClerk.EIP712DOMAIN_SEPARATOR()); | ||
OrderDetail storage od = m_orderDetails[requestorderHash]; | ||
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require(msg.sender == od.requester); | ||
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uint256 consumed = iexecClerk.viewConsumed(requestorderHash); | ||
uint256 refund = od.maxprice.mul(order.volume.sub(consumed)); | ||
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_transfer(address(this), od.requester, refund); | ||
iexecClerk.cancelRequestOrder(order); | ||
} | ||
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function unlockUnspent(bytes32 requestorderhash, uint256 firstTask) | ||
public | ||
{ | ||
bytes32 dealid = keccak256(abi.encodePacked(requestorderhash, firstTask)); | ||
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// only refund the difference once per deal | ||
require(!m_dealUnlocked[dealid]); | ||
m_dealUnlocked[dealid] = true; | ||
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IexecODBLibCore.Deal memory deal = iexecClerk.viewDeal(dealid); | ||
OrderDetail storage od = m_orderDetails[requestorderhash]; | ||
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uint256 actualprice = deal.app.price | ||
.add(deal.dataset.price) | ||
.add(deal.workerpool.price); | ||
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uint256 delta = actualprice | ||
.sub(od.maxprice); | ||
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_transfer(address(this), od.requester, delta.mul(deal.botSize)); | ||
_burn (address(this), actualprice.mul(deal.botSize)); | ||
} | ||
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} |
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