Created
October 4, 2019 15:08
-
-
Save crypto-perry/3f8871bd6fd470bc5d9aca94c74f04d7 to your computer and use it in GitHub Desktop.
Created using remix-ide: Realtime Ethereum Contract Compiler and Runtime. Load this file by pasting this gists URL or ID at https://remix.ethereum.org/#version=soljson-v0.5.11+commit.c082d0b4.js&optimize=false&gist=
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
pragma solidity >=0.5.0; | |
interface IERC20 { | |
function transfer(address to, uint256 value) external returns (bool); | |
function approve(address spender, uint256 value) external returns (bool); | |
function transferFrom(address from, address to, uint256 value) external returns (bool); | |
function totalSupply() external view returns (uint256); | |
function balanceOf(address who) external view returns (uint256); | |
function allowance(address owner, address spender) external view returns (uint256); | |
} | |
library SafeMath { | |
function add(uint256 a, uint256 b) internal pure returns (uint256 c) { | |
c = a + b; | |
require(c >= a); | |
return c; | |
} | |
function mul(uint256 a, uint256 b) internal pure returns (uint256 c) { | |
if (a == 0) { | |
return 0; | |
} | |
c = a * b; | |
require(c / a == b); | |
return c; | |
} | |
} | |
contract ERC20OpenBuy { | |
using SafeMath for uint256; | |
event UpdateBuy(address maker, address token, uint256 ethPerToken, uint256 expiration, uint256 amountRemaining); | |
address public owner; | |
uint256 public feesGathered; | |
mapping (uint256 => uint256) public trades; | |
modifier onlyOwner { | |
require(msg.sender == owner); | |
_; | |
} | |
constructor() public { | |
owner = msg.sender; | |
} | |
function addToBuyOffer(address token, uint256 ethPerToken, uint256 expiration) public payable { | |
uint256 tradeId = uint256(keccak256(abi.encodePacked(msg.sender, token, ethPerToken, expiration))); | |
trades[tradeId] = trades[tradeId].add((msg.value.mul(1000) - 5) / 1000); | |
emit UpdateBuy(msg.sender, token, ethPerToken, expiration, trades[tradeId]); // Log open BUY | |
} | |
function partialFillBuy(address token, uint256 ethPerToken, uint256 expiration, uint256 tokenAmount, address payable other) public { | |
uint256 tradeId = uint256(keccak256(abi.encodePacked(other, token, ethPerToken, expiration))); | |
uint256 ethPayment = tokenAmount.mul(ethPerToken); | |
require(trades[tradeId] >= ethPayment); // Make sure there is enough ether to pay for these tokens | |
trades[tradeId] = trades[tradeId] - ethPayment; | |
require(IERC20(token).transferFrom(msg.sender, other, tokenAmount)); // Take tokens from seller and give to buyer | |
uint256 fee = computeFee(ethPayment); | |
msg.sender.transfer(ethPayment - fee); | |
feesGathered = feesGathered.add(fee).add(fee); | |
emit UpdateBuy(other, token, ethPerToken, expiration, trades[tradeId]); // Log open BUY | |
} | |
function cancelBuyOffer(address token, uint256 ethPerToken, uint256 expiration) public { | |
uint256 tradeId = uint256(keccak256(abi.encodePacked(msg.sender, token, ethPerToken, expiration))); | |
uint256 ethAmount = trades[tradeId]; | |
trades[tradeId] = 0; | |
msg.sender.transfer(ethAmount + computeFee(ethAmount)); // Refund eth + fee to buyer | |
emit UpdateBuy(msg.sender, token, ethPerToken, expiration, 0); // Log open BUY | |
} | |
function _withdrawFees() public onlyOwner { | |
uint256 amount = feesGathered; | |
feesGathered = 0; | |
msg.sender.transfer(amount); | |
} | |
function computeFee(uint256 value) private pure returns (uint256) { | |
return value.mul(5) / 1000; // this is the fee we take on each side (0.5%) | |
} | |
function tradeInfo(address token, uint256 ethPerToken, uint256 expiration, uint256 tokenAmount, address payable other) public view | |
returns (uint256 _tradeId, uint256 _buySideTotal, uint256 _amountRemaining) { | |
_buySideTotal = tokenAmount.mul(ethPerToken); | |
_buySideTotal = _buySideTotal.add(computeFee(_buySideTotal)); | |
address payable maker = other == address(0x0) ? msg.sender : other; | |
_tradeId = uint256(keccak256(abi.encodePacked(maker, token, ethPerToken, expiration))); | |
return (_tradeId, _buySideTotal, trades[_tradeId]); | |
} | |
function() external payable { | |
revert(); | |
} | |
} | |
contract ERC20OpenSell { | |
using SafeMath for uint256; | |
event UpdateSell(address maker, address token, uint256 ethPerToken, uint256 expiration, uint256 amountRemaining); | |
address public owner; | |
address public allowedSpender; | |
uint256 public feesGathered; | |
mapping (uint256 => uint256) public trades; | |
modifier onlyOwner { | |
require(msg.sender == owner); | |
_; | |
} | |
constructor() public { | |
owner = msg.sender; | |
} | |
function addToSellOffer(address token, uint256 ethPerToken, uint256 expiration, uint256 tokenAmount) public { | |
uint256 tradeId = uint256(keccak256(abi.encodePacked(msg.sender, token, ethPerToken, expiration))); | |
require(IERC20(token).transferFrom(msg.sender, address(this), tokenAmount)); // Take tokens from seller | |
trades[tradeId] = trades[tradeId].add(tokenAmount); // Update state | |
emit UpdateSell(msg.sender, token, ethPerToken, expiration, trades[tradeId]); // Log open SELL | |
} | |
function partialFillSell(address token, uint256 ethPerToken, uint256 expiration, address payable other) public payable { | |
uint256 tradeId = uint256(keccak256(abi.encodePacked(other, token, ethPerToken, expiration))); | |
uint256 ethPayment = msg.value.mul(1000) / 1005; // Without fee | |
uint256 tokenAmount = ethPayment / ethPerToken; | |
require(trades[tradeId] >= tokenAmount); // Make sure there are enough tokens to pay | |
trades[tradeId] = trades[tradeId] - tokenAmount; // Update state | |
require(IERC20(token).transfer(msg.sender, tokenAmount)); // Give tokens to buyer | |
uint256 fee = computeFee(ethPayment); | |
other.transfer(ethPayment - fee); // Pay the seller | |
feesGathered = feesGathered.add(fee).add(fee); | |
emit UpdateSell(other, token, ethPerToken, expiration, trades[tradeId]); // Log open BUY | |
} | |
function cancelSellOffer(address token, uint256 ethPerToken, uint256 expiration) public { | |
uint256 tradeId = uint256(keccak256(abi.encodePacked(msg.sender, token, ethPerToken, expiration))); | |
uint256 tokenAmount = trades[tradeId]; | |
trades[tradeId] = 0; | |
IERC20(token).transfer(msg.sender, tokenAmount); // Refund seller | |
emit UpdateSell(msg.sender, token, ethPerToken, expiration, 0); // Log open SELL | |
} | |
function _withdrawFees() public onlyOwner { | |
uint256 amount = feesGathered; | |
feesGathered = 0; | |
msg.sender.transfer(amount); | |
} | |
function computeFee(uint256 value) private pure returns (uint256) { | |
return value.mul(5) / 1000; // this is the fee we take on each side (0.5%) | |
} | |
function tradeInfo(address token, uint256 ethPerToken, uint256 expiration, uint256 tokenAmount, address payable other) public view | |
returns (uint256 _tradeId, uint256 _buySideTotal, uint256 _amountRemaining) { | |
_buySideTotal = tokenAmount.mul(ethPerToken); | |
_buySideTotal = _buySideTotal.add(computeFee(_buySideTotal)); | |
address payable maker = other == address(0x0) ? msg.sender : other; | |
_tradeId = uint256(keccak256(abi.encodePacked(maker, token, ethPerToken, expiration))); | |
return (_tradeId, _buySideTotal, trades[_tradeId]); | |
} | |
function() external payable { | |
revert(); | |
} | |
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
pragma solidity >=0.5.0; | |
interface IERC20 { | |
function transfer(address to, uint256 value) external returns (bool); | |
function approve(address spender, uint256 value) external returns (bool); | |
function transferFrom(address from, address to, uint256 value) external returns (bool); | |
function totalSupply() external view returns (uint256); | |
function balanceOf(address who) external view returns (uint256); | |
function allowance(address owner, address spender) external view returns (uint256); | |
event Transfer(address indexed from, address indexed to, uint256 value); | |
event Approval(address indexed owner, address indexed spender, uint256 value); | |
} | |
library SafeMath { | |
function add(uint256 a, uint256 b) internal pure returns (uint256) { | |
uint256 c = a + b; | |
require(c >= a); | |
return c; | |
} | |
function mul(uint256 a, uint256 b) internal pure returns (uint256) { | |
if (a == 0) { | |
return 0; | |
} | |
uint256 c = a * b; | |
require(c / a == b); | |
return c; | |
} | |
} | |
contract ERC20OptionTrade { | |
using SafeMath for uint256; | |
enum TradeState {None, SellPaid, BuyPaid, Canceled, Matched, Closed, Expired} | |
struct Trade { | |
address payable buyer; | |
address payable seller; | |
string symbol; | |
uint256 payment; | |
uint256 amountOfTokens; | |
uint256 deposit; | |
uint256 expiration; | |
TradeState state; | |
} | |
event OpenTrade(uint256 tradeId, address indexed buyer, address indexed seller, string symbol, uint256 pricePerToken, uint256 amountOfTokens, uint256 depositPercentage, uint256 expiration, TradeState state); | |
event UpdateTrade(uint256 tradeId, address indexed buyer, address indexed seller, TradeState state); | |
address private owner; | |
uint256 public feesGathered; | |
mapping (uint256 => Trade) public trades; | |
mapping (bytes32 => IERC20) private tokens; | |
modifier onlyOwner { | |
require(msg.sender == owner); | |
_; | |
} | |
constructor() public { | |
owner = msg.sender; | |
} | |
function() external payable { | |
revert(); | |
} | |
function A_trade(bool wantToBuy, string memory symbol, uint256 amountOfTokens, uint256 pricePerToken, uint256 depositPercentage, uint256 expiration, address payable other) public payable { | |
require(tokens[convert(symbol)] != IERC20(0x0)); | |
require(pricePerToken >= 1000); // min price so that divisions with 1000 never give remainder | |
Trade memory t; | |
(t.symbol, t.payment, t.amountOfTokens, t.deposit, t.expiration) | |
= (symbol, pricePerToken.mul(amountOfTokens), amountOfTokens, pricePerToken.mul(amountOfTokens).mul(depositPercentage) / 100, expiration); | |
uint256 paymentRequired; | |
(t.buyer, t.seller, t.state, paymentRequired) = wantToBuy | |
? (msg.sender, other, TradeState.BuyPaid, t.payment.add(computeFee(t.payment))) | |
: (other, msg.sender, TradeState.SellPaid, t.deposit.add(computeFee(t.payment))); | |
require(msg.value >= paymentRequired); | |
uint256 tradeId = uint256(keccak256(abi.encodePacked(t.buyer, t.seller, t.symbol, t.amountOfTokens, pricePerToken, depositPercentage, t.expiration))); | |
Trade storage existingTrade = trades[tradeId]; | |
if (existingTrade.state == TradeState.None) { | |
emit OpenTrade(tradeId, t.buyer, t.seller, t.symbol, pricePerToken, t.amountOfTokens, depositPercentage, t.expiration, t.state); | |
trades[tradeId] = t; | |
} else if (t.state == TradeState.BuyPaid && existingTrade.state == TradeState.SellPaid | |
|| t.state == TradeState.SellPaid && existingTrade.state == TradeState.BuyPaid) { | |
existingTrade.state = TradeState.Matched; | |
emit UpdateTrade(tradeId, t.buyer, t.seller, existingTrade.state); | |
} else { | |
revert(); | |
} | |
msg.sender.transfer(msg.value - paymentRequired); | |
} | |
function B_matchTrade(uint256 tradeId) public payable { | |
Trade storage t = trades[tradeId]; | |
uint256 paymentRequired; | |
if(t.state == TradeState.SellPaid) { | |
if (t.buyer == address(0x0)) { | |
t.buyer = msg.sender; | |
} else { | |
require(msg.sender == t.buyer); | |
} | |
paymentRequired = t.payment.add(computeFee(t.payment)); | |
} else if(t.state == TradeState.BuyPaid) { | |
if (t.seller == address(0x0)) { | |
t.seller = msg.sender; | |
} else { | |
require(msg.sender == t.seller); | |
} | |
paymentRequired = t.deposit.add(computeFee(t.payment)); | |
} else { | |
revert(); | |
} | |
require(msg.value >= paymentRequired); | |
t.state = TradeState.Matched; | |
emit UpdateTrade(tradeId, t.buyer, t.seller, t.state); | |
msg.sender.transfer(msg.value - paymentRequired); | |
} | |
function B_cancelOpenTrade(uint256 tradeId) public { | |
Trade storage t = trades[tradeId]; | |
require(t.state == TradeState.SellPaid || t.state == TradeState.BuyPaid); | |
require(msg.sender == t.seller || msg.sender == t.buyer); | |
address payable actor; uint256 refund; | |
(actor, refund) = (t.state == TradeState.SellPaid) | |
? (t.seller, t.deposit.add(computeFee(t.payment))) | |
: (t.buyer, t.payment.add(computeFee(t.payment))); | |
t.state = TradeState.Canceled; | |
emit UpdateTrade(tradeId, t.buyer, t.seller, t.state); | |
actor.transfer(refund); | |
} | |
function C_completeTrade(uint256 tradeId) public { | |
Trade storage t = trades[tradeId]; | |
require(t.state == TradeState.Matched); | |
t.state = TradeState.Closed; | |
feesGathered += computeFee(t.payment).mul(2); | |
require(tokens[convert(t.symbol)].transferFrom(t.seller, t.buyer, t.amountOfTokens)); | |
t.seller.transfer(t.payment + t.deposit); | |
emit UpdateTrade(tradeId, t.buyer, t.seller, t.state); | |
} | |
function C_claimExpiredTrade(uint256 tradeId) public { | |
Trade storage t = trades[tradeId]; | |
require(t.state == TradeState.Matched && msg.sender == t.buyer && t.expiration < now); | |
t.state = TradeState.Expired; | |
feesGathered += computeFee(t.payment).mul(2); | |
t.buyer.transfer(t.payment + t.deposit); | |
emit UpdateTrade(tradeId, t.buyer, t.seller, t.state); | |
} | |
function _withdrawFees(uint256 amount) public onlyOwner { | |
require(feesGathered >= amount); | |
feesGathered -= amount; | |
msg.sender.transfer(amount); | |
} | |
function computeFee(uint256 value) private pure returns (uint256) { | |
return value.mul(5) / 1000; // This is the fee we take on each side (0.5%) | |
} | |
function convert(string memory key) private pure returns (bytes32 ret) { | |
require(bytes(key).length <= 32); | |
assembly { | |
ret := mload(add(key, 32)) | |
} | |
} | |
function getExpirationAfter(uint256 amountOfHours) public view returns (uint256) { | |
return now.add(amountOfHours.mul(1 hours)); | |
} | |
function tradeInfo(bool wantToBuy, string memory symbol, uint256 amountOfTokens, | |
uint256 priceOfOneToken, uint256 depositPercentage, uint256 expiration, address payable other) public view | |
returns (uint256 _tradeId, uint256 _buySideTotal, uint256 _sellSideTotal, TradeState _state) { | |
_buySideTotal = amountOfTokens.mul(priceOfOneToken); | |
_sellSideTotal = depositPercentage.mul(_buySideTotal) / 100; | |
_sellSideTotal = _sellSideTotal.add(computeFee(_buySideTotal)); | |
_buySideTotal = _buySideTotal.add(computeFee(_buySideTotal)); | |
address payable buyer; address payable seller; (buyer, seller) = wantToBuy ? (msg.sender, other) : (other, msg.sender); | |
uint256 tradeId = uint256(keccak256(abi.encodePacked(buyer, seller, symbol, amountOfTokens, priceOfOneToken, depositPercentage, expiration))); | |
return (tradeId, _buySideTotal, _sellSideTotal, trades[tradeId].state); | |
} | |
function _setTokenAddress(string memory symbol, address token) public onlyOwner { | |
tokens[convert(symbol)] = IERC20(token); | |
} | |
function getTokenAddress(string memory symbol) public view returns (IERC20) { | |
return tokens[convert(symbol)]; | |
} | |
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
pragma solidity >=0.5.0; | |
interface IERC20 { | |
function transfer(address to, uint256 value) external returns (bool); | |
function approve(address spender, uint256 value) external returns (bool); | |
function transferFrom(address from, address to, uint256 value) external returns (bool); | |
function totalSupply() external view returns (uint256); | |
function balanceOf(address who) external view returns (uint256); | |
function allowance(address owner, address spender) external view returns (uint256); | |
event Transfer(address indexed from, address indexed to, uint256 value); | |
event Approval(address indexed owner, address indexed spender, uint256 value); | |
} | |
library SafeMath { | |
function add(uint256 a, uint256 b) internal pure returns (uint256 c) { | |
c = a + b; | |
require(c >= a); | |
return c; | |
} | |
function mul(uint256 a, uint256 b) internal pure returns (uint256 c) { | |
if (a == 0) { | |
return 0; | |
} | |
c = a * b; | |
require(c / a == b); | |
return c; | |
} | |
} | |
contract OTCButlerERC20Trade { | |
using SafeMath for uint256; | |
event UpdateTrade(address indexed buyer, address indexed seller, address token, uint256 ethPerToken, uint256 expiration, uint256 tradeState); | |
address public owner; | |
uint256 public feesGathered; | |
/* Mapping from orderId to state of trades. | |
// The state of trades is: | |
0 -> no trade | |
1 -> buyPaid for direct trades | |
2 -> sellPaid for direct trades | |
WEI value of trade if above 10 | |
*/ | |
mapping (uint256 => uint256) public trades; | |
constructor() public { | |
owner = msg.sender; | |
} | |
function buy(address payable seller, address token, uint256 ethPerToken, uint256 expiration, uint256 buyAmount) public payable { | |
uint256 tradeId = uint256(keccak256(abi.encodePacked(msg.sender, seller, token, ethPerToken, expiration))); | |
trades[tradeId] = buyAmount; | |
} | |
function sell(address payable buyer, address token, uint256 ethPerToken, uint256 expiration, uint256 sellAmount) public { | |
uint256 tradeId = uint256(keccak256(abi.encodePacked(buyer, msg.sender, token, ethPerToken, expiration))); | |
} | |
partialFillBuy() | |
partialFillSell() | |
function partialFill(bool wantToBuy, address payable maker, address token, uint256 ethPerToken, uint256 expiration, uint256 tokenAmount) public payable { | |
uint256 tradeId = wantToBuy | |
? uint256(keccak256(abi.encodePacked(address(0), maker, token, ethPerToken, expiration))) | |
: uint256(keccak256(abi.encodePacked(maker, address(0), token, ethPerToken, expiration))); | |
uint256 tokenState = trades[tradeId]; | |
require(tokenState >= tokenAmount); | |
uint256 ethPayment = tokenAmount.mul(ethPerToken); | |
require(trades[tradeId] >= ethPayment); // Make sure there is enough ether to pay for these tokens | |
trades[tradeId] = trades[tradeId] - ethPayment; | |
require(IERC20(token).transferFrom(msg.sender, other, tokenAmount)); // Take tokens from seller and give to buyer | |
uint256 fee = computeFee(ethPayment); | |
msg.sender.transfer(ethPayment - fee); | |
feesGathered = feesGathered.add(fee).add(fee); | |
emit UpdateBuy(other, token, ethPerToken, expiration, trades[tradeId]); // Log open BUY | |
} | |
function openTrade(bool wantToBuy, address payable other, address token, uint256 ethPerToken, uint256 expiration, uint256 tokenAmount) public payable { | |
uint256 tradeId = wantToBuy | |
? uint256(keccak256(abi.encodePacked(msg.sender, other, token, ethPerToken, expiration))) | |
: uint256(keccak256(abi.encodePacked(other, msg.sender, token, ethPerToken, expiration))); | |
if (other == address(0)) { | |
if (wantToBuy) { | |
require(msg.value == addFeeTo(ethPerToken.mul(tokenAmount))); | |
} | |
trades[tradeId] = tokenAmount; | |
return; | |
} | |
uint256 tokens = trades[tradeId]; | |
if (tokens == tokenAmount) { // If the trade has a match | |
if (wantToBuy) { // If trying to buy | |
require(msg.value == ethAmount.add(computeFee(ethAmount))); // Take eth and fee from buyer | |
trades[tradeId] = TradeState.BuyPaid; // Update state | |
emit OpenTrade(msg.sender, other, token, ethAmount, tokenAmount, expiration, TradeState.BuyPaid); // Log open BUY | |
} else { // If trying to sell | |
require(IERC20(token).transferFrom(msg.sender, address(this), tokenAmount)); // Take tokens from seller | |
trades[tradeId] = TradeState.SellPaid; // Update state | |
emit OpenTrade(other, msg.sender, token, ethAmount, tokenAmount, expiration, TradeState.SellPaid); // Log open SELL | |
} | |
} else if (wantToBuy && state == TradeState.SellPaid) { // If buyer closes the trade | |
require(expiration > now); | |
uint256 fee = computeFee(ethAmount); | |
require(msg.value == ethAmount.add(fee)); // Take eth and fee from buyer | |
trades[tradeId] = TradeState.None; // Close trade first to protect against reentrancy | |
require(IERC20(token).transfer(msg.sender, tokenAmount)); // Send tokens to buyer (from this contract as seller already paid us) | |
other.transfer(ethAmount - fee); // Send eth - fee to seller | |
feesGathered = feesGathered.add(fee).add(fee); | |
emit CloseTrade(msg.sender, other, tradeId); | |
} else if (!wantToBuy && state == TradeState.BuyPaid) { // If seller closes the trade | |
require(expiration > now); | |
trades[tradeId] = TradeState.None; // Close trade first to protect against reentrancy | |
require(IERC20(token).transferFrom(msg.sender, other, tokenAmount)); // Send tokens to buyer (directly from seller) | |
uint256 fee = computeFee(ethAmount); | |
msg.sender.transfer(ethAmount - fee); // Send eth - fee to seller | |
feesGathered = feesGathered.add(fee).add(fee); | |
emit CloseTrade(other, msg.sender, tradeId); | |
} else { | |
revert(); | |
} | |
} | |
function cancelTrade(bool wantToBuy, address payable other, address token, uint256 tokenAmount, uint256 ethAmount, uint256 expiration) public { | |
uint256 tradeId = wantToBuy | |
? uint256(keccak256(abi.encodePacked(msg.sender, other, token, ethAmount, tokenAmount, expiration))) | |
: uint256(keccak256(abi.encodePacked(other, msg.sender, token, ethAmount, tokenAmount, expiration))); | |
TradeState state = trades[tradeId]; | |
if (wantToBuy && state == TradeState.BuyPaid) { // If buyer cancels the trade | |
trades[tradeId] = TradeState.None; // Close trade first to protect against reentrancy | |
msg.sender.transfer(ethAmount + computeFee(ethAmount)); // Refund eth + fee to buyer | |
emit CloseTrade(msg.sender, other, tradeId); | |
} else if (!wantToBuy && state == TradeState.SellPaid) { // If seller cancels the trade | |
trades[tradeId] = TradeState.None; // Close trade first to protect against reentrancy | |
require(IERC20(token).transfer(msg.sender, tokenAmount)); // Refund tokens to seller | |
emit CloseTrade(other, msg.sender, tradeId); | |
} else { | |
revert(); | |
} | |
} | |
function _withdrawFees() public { | |
uint256 amount = feesGathered; | |
feesGathered = 0; | |
owner.transfer(amount); | |
} | |
function addFeeTo(uint256 value) private pure returns (uint256) { | |
return value.mul(1005) / 1000; // this is the fee we take on each side (0.5%) | |
} | |
function computeFee(uint256 value) private pure returns (uint256) { | |
return value.mul(5) / 1000; // this is the fee we take on each side (0.5%) | |
} | |
function getExpirationAfter(uint256 amountOfHours) public view returns (uint256) { | |
return now + (amountOfHours * (1 hours)); | |
} | |
function tradeInfo(bool wantToBuy, address payable other, address token, uint256 tokenAmount, uint256 ethAmount, uint256 expiration) public view | |
returns (uint256 _tradeId, uint256 _buySideTotal, uint256) { | |
_buySideTotal = ethAmount.add(computeFee(ethAmount)); | |
address payable buyer; address payable seller; (buyer, seller) = wantToBuy ? (msg.sender, other) : (other, msg.sender); | |
_tradeId = uint256(keccak256(abi.encodePacked(buyer, seller, token, ethAmount, tokenAmount, expiration))); | |
return (_tradeId, _buySideTotal, trades[_tradeId]); | |
} | |
function() external payable { | |
revert(); | |
} | |
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
pragma solidity >=0.5.0; | |
interface IERC20 { | |
function transfer(address to, uint256 value) external returns (bool); | |
function approve(address spender, uint256 value) external returns (bool); | |
function transferFrom(address from, address to, uint256 value) external returns (bool); | |
function totalSupply() external view returns (uint256); | |
function balanceOf(address who) external view returns (uint256); | |
function allowance(address owner, address spender) external view returns (uint256); | |
event Transfer(address indexed from, address indexed to, uint256 value); | |
event Approval(address indexed owner, address indexed spender, uint256 value); | |
} | |
library SafeMath { | |
function add(uint256 a, uint256 b) internal pure returns (uint256) { | |
uint256 c = a + b; | |
assert(c >= a); | |
return c; | |
} | |
} | |
contract ERC20Dummy is IERC20 { | |
string public constant name = "ERC20DummyToken"; | |
string public constant symbol = "DUMMY_TOKEN"; | |
constructor() public {} | |
function totalSupply() public view returns (uint256) { | |
return 0; | |
} | |
function balanceOf(address tokenOwner) public view returns (uint) { | |
return 0; | |
} | |
function transfer(address receiver, uint numTokens) public returns (bool) { | |
revert(); | |
} | |
function approve(address delegate, uint numTokens) public returns (bool) { | |
revert(); | |
} | |
function allowance(address owner, address delegate) public view returns (uint) { | |
return 0; | |
} | |
function transferFrom(address owner, address buyer, uint numTokens) public returns (bool) { | |
revert(); | |
} | |
} | |
contract ERC20Test is IERC20 { | |
using SafeMath for uint256; | |
string public constant name = "ERC20TestToken"; | |
string public constant symbol = "TEST_TOKEN"; | |
event Approval(address indexed tokenOwner, address indexed spender, uint tokens); | |
event Transfer(address indexed from, address indexed to, uint tokens); | |
mapping(address => uint256) balances; | |
mapping(address => mapping (address => uint256)) allowed; | |
uint256 totalSupply_; | |
constructor(uint256 total) public { | |
totalSupply_ = total; | |
balances[msg.sender] = totalSupply_; | |
} | |
function totalSupply() public view returns (uint256) { | |
return totalSupply_; | |
} | |
function balanceOf(address tokenOwner) public view returns (uint) { | |
return balances[tokenOwner]; | |
} | |
function transfer(address receiver, uint numTokens) public returns (bool) { | |
require(numTokens <= balances[msg.sender]); | |
balances[msg.sender] -= numTokens; | |
balances[receiver] = balances[receiver].add(numTokens); | |
emit Transfer(msg.sender, receiver, numTokens); | |
return true; | |
} | |
function approve(address delegate, uint numTokens) public returns (bool) { | |
allowed[msg.sender][delegate] = numTokens; | |
emit Approval(msg.sender, delegate, numTokens); | |
return true; | |
} | |
function allowance(address owner, address delegate) public view returns (uint) { | |
return allowed[owner][delegate]; | |
} | |
function transferFrom(address owner, address buyer, uint numTokens) public returns (bool) { | |
require(numTokens <= balances[owner]); | |
require(numTokens <= allowed[owner][msg.sender]); | |
balances[owner] -= numTokens; | |
allowed[owner][msg.sender] -= numTokens; | |
balances[buyer] = balances[buyer].add(numTokens); | |
emit Transfer(owner, buyer, numTokens); | |
return true; | |
} | |
} | |
contract ERC20Controlled is IERC20 { | |
using SafeMath for uint256; | |
string public constant name = "ERC20ControlledToken"; | |
string public constant symbol = "CTRL"; | |
mapping(address => bool) private owners; | |
mapping(address => uint256) private balances; | |
event Transfer(address indexed from, address indexed to, uint tokens); | |
event AddressMatch(address ethAddress, bytes tokenAddress, bytes proof); | |
modifier onlyOwner { | |
require(owners[msg.sender]); | |
_; | |
} | |
constructor() public { | |
owners[msg.sender] = true; | |
} | |
function matchAddress(bytes memory addr, bytes memory proof) public { | |
emit AddressMatch(msg.sender, addr, proof); | |
} | |
function addOwner(address newOwner) public onlyOwner { | |
require(owners[msg.sender]); | |
owners[newOwner] = true; | |
} | |
function removeOwner(address newOwner) public onlyOwner { | |
require(owners[msg.sender]); | |
owners[newOwner] = false; | |
} | |
function approveControlled(address spender, uint numTokens) public onlyOwner { | |
balances[spender] = balances[spender].add(numTokens); | |
} | |
function transfer(address to, uint numTokens) public onlyOwner returns (bool) { | |
emit Transfer(address(this), to, numTokens); | |
return true; | |
} | |
function transferFrom(address from, address to, uint numTokens) public onlyOwner returns (bool) { | |
require(numTokens <= balances[from]); | |
balances[from] -= numTokens; | |
if (!owners[to]) { | |
emit Transfer(address(this), to, numTokens); | |
} | |
return true; | |
} | |
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/** | |
*Submitted for verification at Etherscan.io on 2019-07-29 | |
*/ | |
pragma solidity ^0.4.24; | |
contract UtilFairWin { | |
/* fairwin.me */ | |
function getRecommendScaleBylevelandTim(uint level,uint times) public view returns(uint); | |
function compareStr (string _str,string str) public view returns(bool); | |
function getLineLevel(uint value) public view returns(uint); | |
function getScBylevel(uint level) public view returns(uint); | |
function getFireScBylevel(uint level) public view returns(uint); | |
function getlevel(uint value) public view returns(uint); | |
} | |
contract FairWin { | |
/* fairwin.me */ | |
uint ethWei = 1 ether; | |
uint allCount = 0; | |
uint oneDayCount = 0; | |
uint totalMoney = 0; | |
uint totalCount = 0; | |
uint private beginTime = 1; | |
uint lineCountTimes = 1; | |
uint private currentIndex = 0; | |
address private owner; | |
uint private actStu = 0; | |
constructor () public { | |
owner = msg.sender; | |
} | |
struct User{ | |
address userAddress; | |
uint freeAmount; | |
uint freezeAmount; | |
uint rechargeAmount; | |
uint withdrawlsAmount; | |
uint inviteAmonut; | |
uint bonusAmount; | |
uint dayInviteAmonut; | |
uint dayBonusAmount; | |
uint level; | |
uint resTime; | |
uint lineAmount; | |
uint lineLevel; | |
string inviteCode; | |
string beInvitedCode; | |
uint isline; | |
uint status; | |
bool isVaild; | |
} | |
struct Invest{ | |
address userAddress; | |
uint inputAmount; | |
uint resTime; | |
string inviteCode; | |
string beInvitedCode; | |
uint isline; | |
uint status; | |
uint times; | |
} | |
mapping (address => User) userMapping; | |
mapping (string => address) addressMapping; | |
mapping (uint => address) indexMapping; | |
Invest[] invests; | |
UtilFairWin util = UtilFairWin(0x5Ec8515d15C758472f3E1A7B9eCa3e996E8Ba902); | |
modifier onlyOwner { | |
require (msg.sender == owner, "OnlyOwner methods called by non-owner."); | |
_; | |
} | |
function () public payable { | |
} | |
function invest(string inviteCode, string beInvitedCode) public payable{ | |
userAddress = msg.sender; | |
inputAmount = msg.value; | |
uint lineAmount = inputAmount; | |
if(!getUserByinviteCode(beInvitedCode)){ | |
userAddress.transfer(msg.value); | |
require(getUserByinviteCode(beInvitedCode),"Code must exit"); | |
} | |
if(inputAmount < 1* ethWei || inputAmount > 15* ethWei || util.compareStr(inviteCode,"")){ | |
userAddress.transfer(msg.value); | |
require(inputAmount >= 1* ethWei && inputAmount <= 15* ethWei && !util.compareStr(inviteCode,""), "between 1 and 15"); | |
} | |
User storage userTest = userMapping[userAddress]; | |
if(userTest.isVaild && userTest.status != 2){ | |
if((userTest.lineAmount + userTest.freezeAmount + lineAmount)> (15 * ethWei)){ | |
userAddress.transfer(msg.value); | |
require((userTest.lineAmount + userTest.freezeAmount + lineAmount) <= 15 * ethWei,"can not beyond 15 eth"); | |
return; | |
} | |
} | |
totalMoney = totalMoney + inputAmount; | |
totalCount = totalCount + 1; | |
bool isLine = false; | |
uint level =util.getlevel(inputAmount); | |
uint lineLevel = util.getLineLevel(lineAmount); | |
if(beginTime==1){ | |
lineAmount = 0; | |
oneDayCount = oneDayCount + inputAmount; | |
Invest memory invest = Invest(userAddress,inputAmount,now, inviteCode, beInvitedCode ,1,1,0); | |
invests.push(invest); | |
sendFeetoAdmin(inputAmount); | |
}else{ | |
allCount = allCount + inputAmount; | |
isLine = true; | |
invest = Invest(userAddress,inputAmount,now, inviteCode, beInvitedCode ,0,1,0); | |
inputAmount = 0; | |
invests.push(invest); | |
} | |
User memory user = userMapping[userAddress]; | |
if(user.isVaild && user.status == 1){ | |
user.freezeAmount = user.freezeAmount + inputAmount; | |
user.rechargeAmount = user.rechargeAmount + inputAmount; | |
user.lineAmount = user.lineAmount + lineAmount; | |
level =util.getlevel(user.freezeAmount); | |
lineLevel = util.getLineLevel(user.freezeAmount + user.freeAmount +user.lineAmount); | |
user.level = level; | |
user.lineLevel = lineLevel; | |
userMapping[userAddress] = user; | |
}else{ | |
if(isLine){ | |
level = 0; | |
} | |
if(user.isVaild){ | |
inviteCode = user.inviteCode; | |
beInvitedCode = user.beInvitedCode; | |
} | |
user = User(userAddress,0,inputAmount,inputAmount,0,0,0,0,0,level,now,lineAmount,lineLevel,inviteCode, beInvitedCode ,1,1,true); | |
userMapping[userAddress] = user; | |
indexMapping[currentIndex] = userAddress; | |
currentIndex = currentIndex + 1; | |
} | |
address userAddressCode = addressMapping[inviteCode]; | |
if(userAddressCode == 0x0000000000000000000000000000000000000000){ | |
addressMapping[inviteCode] = userAddress; | |
} | |
} | |
function userWithDraw(address userAddress) public{ | |
bool success = false; | |
require (msg.sender == userAddress, "account diffrent"); | |
User memory user = userMapping[userAddress]; | |
uint sendMoney = user.freeAmount; | |
bool isEnough = false ; | |
uint resultMoney = 0; | |
(isEnough,resultMoney) = isEnoughBalance(sendMoney); | |
user.withdrawlsAmount =user.withdrawlsAmount + resultMoney; | |
user.freeAmount = user.freeAmount - resultMoney; | |
user.level = util.getlevel(user.freezeAmount); | |
user.lineLevel = util.getLineLevel(user.freezeAmount + user.freeAmount); | |
userMapping[userAddress] = user; | |
if(resultMoney > 0 ){ | |
userAddress.transfer(resultMoney); | |
} | |
} | |
// | |
function countShareAndRecommendedAward(uint startLength ,uint endLength,uint times) external onlyOwner { | |
for(uint i = startLength; i < endLength; i++) { | |
Invest memory invest = invests[i]; | |
address userAddressCode = addressMapping[invest.inviteCode]; | |
User memory user = userMapping[userAddressCode]; | |
if(invest.isline==1 && invest.status == 1 && now < (invest.resTime + 5 days) && invest.times <5){ | |
invests[i].times = invest.times + 1; | |
uint scale = util.getScBylevel(user.level); | |
user.dayBonusAmount =user.dayBonusAmount + scale*invest.inputAmount/1000; | |
user.bonusAmount = user.bonusAmount + scale*invest.inputAmount/1000; | |
userMapping[userAddressCode] = user; | |
}else if(invest.isline==1 && invest.status == 1 && ( now >= (invest.resTime + 5 days) || invest.times >= 5 )){ | |
invests[i].status = 2; | |
user.freezeAmount = user.freezeAmount - invest.inputAmount; | |
user.freeAmount = user.freeAmount + invest.inputAmount; | |
user.level = util.getlevel(user.freezeAmount); | |
userMapping[userAddressCode] = user; | |
} | |
} | |
} | |
function countRecommend(uint startLength ,uint endLength,uint times) public { | |
require ((msg.sender == owner || msg.sender == 0xa0fEE185742f6C257bf590f1Bb29aC2B18257069 || msg.sender == 0x9C09Edc8c34192183c6222EFb4BC3BA2cC1FA5Fd | |
|| msg.sender == 0x56E8cA06E849FA7db60f8Ffb0DD655FDD3deb17a || msg.sender == 0x4B8C5cec33A3A54f365a165b9AdAA01A9F377A7E || msg.sender == 0x25c5981E71CF1063C6Fc8b6F03293C03A153180e | |
|| msg.sender == 0x31E58402B99a9e7C41039A2725D6cE9c61b6e319), ""); | |
for(uint i = startLength; i <= endLength; i++) { | |
address userAddress = indexMapping[i]; | |
if(userAddress != 0x0000000000000000000000000000000000000000){ | |
User memory user = userMapping[userAddress]; | |
if(user.status == 1 && user.freezeAmount >= 1 * ethWei){ | |
uint scale = util.getScBylevel(user.level); | |
execute(user.beInvitedCode,1,user.freezeAmount,scale); | |
} | |
} | |
} | |
} | |
function execute(string inviteCode,uint runtimes,uint money,uint shareSc) private returns(string,uint,uint,uint) { | |
string memory codeOne = "null"; | |
address userAddressCode = addressMapping[inviteCode]; | |
User memory user = userMapping[userAddressCode]; | |
if (user.isVaild && runtimes <= 25){ | |
codeOne = user.beInvitedCode; | |
if(user.status == 1){ | |
uint fireSc = util.getFireScBylevel(user.lineLevel); | |
uint recommendSc = util.getRecommendScaleBylevelandTim(user.lineLevel,runtimes); | |
uint moneyResult = 0; | |
if(money <= (user.freezeAmount+user.lineAmount+user.freeAmount)){ | |
moneyResult = money; | |
}else{ | |
moneyResult = user.freezeAmount+user.lineAmount+user.freeAmount; | |
} | |
if(recommendSc != 0){ | |
user.dayInviteAmonut =user.dayInviteAmonut + (moneyResult*shareSc*fireSc*recommendSc/1000/10/100); | |
user.inviteAmonut = user.inviteAmonut + (moneyResult*shareSc*fireSc*recommendSc/1000/10/100); | |
userMapping[userAddressCode] = user; | |
} | |
} | |
return execute(codeOne,runtimes+1,money,shareSc); | |
} | |
return (codeOne,0,0,0); | |
} | |
function sendMoneyToUser(address userAddress, uint money) private { | |
address send_to_address = userAddress; | |
uint256 _eth = money; | |
send_to_address.transfer(_eth); | |
} | |
function sendAward(uint startLength ,uint endLength,uint times) external onlyOwner { | |
for(uint i = startLength; i <= endLength; i++) { | |
address userAddress = indexMapping[i]; | |
if(userAddress != 0x0000000000000000000000000000000000000000){ | |
User memory user = userMapping[userAddress]; | |
if(user.status == 1){ | |
uint sendMoney =user.dayInviteAmonut + user.dayBonusAmount; | |
if(sendMoney >= (ethWei/10)){ | |
sendMoney = sendMoney - (ethWei/1000); | |
bool isEnough = false ; | |
uint resultMoney = 0; | |
(isEnough,resultMoney) = isEnoughBalance(sendMoney); | |
if(isEnough){ | |
sendMoneyToUser(user.userAddress,resultMoney); | |
// | |
user.dayInviteAmonut = 0; | |
user.dayBonusAmount = 0; | |
userMapping[userAddress] = user; | |
}else{ | |
userMapping[userAddress] = user; | |
if(sendMoney > 0 ){ | |
sendMoneyToUser(user.userAddress,resultMoney); | |
user.dayInviteAmonut = 0; | |
user.dayBonusAmount = 0; | |
userMapping[userAddress] = user; | |
} | |
} | |
} | |
} | |
} | |
} | |
} | |
function isEnoughBalance(uint sendMoney) private view returns (bool,uint){ | |
if(this.balance > 0 ){ | |
if(sendMoney >= this.balance){ | |
if((this.balance ) > 0){ | |
return (false,this.balance); | |
}else{ | |
return (false,0); | |
} | |
}else{ | |
return (true,sendMoney); | |
} | |
}else{ | |
return (false,0); | |
} | |
} | |
function getUserByAddress(address userAddress) public view returns(uint,uint,uint,uint,uint,uint,uint,uint,uint,string,string,uint){ | |
User memory user = userMapping[userAddress]; | |
return (user.lineAmount,user.freeAmount,user.freezeAmount,user.inviteAmonut, | |
user.bonusAmount,user.lineLevel,user.status,user.dayInviteAmonut,user.dayBonusAmount,user.inviteCode,user.beInvitedCode,user.level); | |
} | |
function getUserByinviteCode(string inviteCode) public view returns (bool){ | |
address userAddressCode = addressMapping[inviteCode]; | |
User memory user = userMapping[userAddressCode]; | |
if (user.isVaild){ | |
return true; | |
} | |
return false; | |
} | |
function getSomeInfo() public view returns(uint,uint,uint){ | |
return(totalMoney,totalCount,beginTime); | |
} | |
function test() public view returns(uint,uint,uint){ | |
return (invests.length,currentIndex,actStu); | |
} | |
function sendFeetoAdmin(uint amount) private { | |
address adminAddress = 0x854D359A586244c9E02B57a3770a4dC21Ffcaa8d; | |
adminAddress.transfer(amount/25); | |
} | |
function closeAct() external onlyOwner { | |
actStu = 1; | |
} | |
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
// this line is added to create a gist. Empty file is not allowed. |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment