Updated Smart Contract Logics.

This commit is contained in:
Sowmayjain 2018-10-26 00:14:53 +05:30
parent cd87e4a868
commit 34bde065b8
4 changed files with 160 additions and 43 deletions

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@ -1,6 +1,3 @@
// Implement the proper governance mechanism to update the admin address like admin have rights to upgrade anything but not just "admin". Governance will be used to set admin address.
// Or keep AllowedResolver also in MoatAddress contract
pragma solidity ^0.4.24; pragma solidity ^0.4.24;
@ -9,6 +6,9 @@ contract AddressRegistry {
event AddressChanged(string name, address target); event AddressChanged(string name, address target);
mapping(bytes32 => address) internal addressRegistry; mapping(bytes32 => address) internal addressRegistry;
// Resolver Contract Addresses >> Asset Owner Address >> Bool
mapping(address => mapping(address => bool)) allowedResolver;
modifier onlyAdmin() { modifier onlyAdmin() {
require( require(
msg.sender == getAddr("admin"), msg.sender == getAddr("admin"),
@ -31,14 +31,11 @@ contract AddressRegistry {
require(addr != address(0), "Not a valid address."); require(addr != address(0), "Not a valid address.");
} }
// Contract Address >> Asset Owner Address >> Bool function approveResolver() public {
mapping(address => mapping(address => bool)) allowedResolver;
function allowContract() public {
allowedResolver[getAddr("resolver")][msg.sender] = true; allowedResolver[getAddr("resolver")][msg.sender] = true;
} }
function disallowContract() public { function disapproveResolver() public {
allowedResolver[getAddr("resolver")][msg.sender] = false; allowedResolver[getAddr("resolver")][msg.sender] = false;
} }

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@ -1,6 +1,6 @@
// Allow ERC20 deposits // Allow ERC20 deposits
// withdraw the extra assets other than global balance (in case anyone donated for free) and then no need for seperate brokerage calculation // withdraw the extra assets other than global balance (in case anyone donated for free) and then no need for seperate brokerage calculation
// how the balance of tokens with less than 18 decimals are stored // IMPORTANT CHECK - how the balance of tokens with less than 18 decimals are stored. Factor it.
// update the balance along with "transferAssets" functions and also check the for onlyAllowedResolver // update the balance along with "transferAssets" functions and also check the for onlyAllowedResolver
pragma solidity ^0.4.24; pragma solidity ^0.4.24;
@ -13,6 +13,7 @@ interface AddressRegistry {
interface token { interface token {
function approve(address spender, uint256 value) external returns (bool); function approve(address spender, uint256 value) external returns (bool);
function transfer(address receiver, uint amount) external returns (bool); function transfer(address receiver, uint amount) external returns (bool);
function transferFrom(address from, address to, uint amount) external returns (bool);
} }
@ -53,14 +54,20 @@ contract AssetDB is Registry {
function getBalance( function getBalance(
address assetHolder, address assetHolder,
address token address tokenAddr
) public view returns (uint256 balance) ) public view returns (uint256 balance)
{ {
balance = balances[assetHolder][token]; balance = balances[assetHolder][tokenAddr];
} }
function deposit() public payable { function deposit(address tknAddr, uint amount) public payable {
balances[msg.sender][eth] += msg.value; if (msg.value > 0) {
balances[msg.sender][eth] += msg.value;
} else {
token tokenFunctions = token(tknAddr);
tokenFunctions.transferFrom(msg.sender, address(this), amount);
balances[msg.sender][eth] += msg.value;
}
} }
function withdraw(address addr, uint amt) public { function withdraw(address addr, uint amt) public {
@ -78,29 +85,29 @@ contract AssetDB is Registry {
address tokenAddr, address tokenAddr,
uint amt, uint amt,
bool add, bool add,
address target address user
) public onlyAllowedResolver(target) ) public onlyAllowedResolver(user)
{ {
if (add) { if (add) {
balances[target][tokenAddr] += amt; balances[user][tokenAddr] += amt;
} else { } else {
balances[target][tokenAddr] -= amt; balances[user][tokenAddr] -= amt;
} }
} }
// function transferAssets( function transferAssets(
// address tokenAddress, address tokenAddress,
// uint amount, uint amount,
// address sendTo address sendTo
// ) public onlyAllowedResolver ) public onlyAllowedResolver
// { {
// if (tokenAddress == eth) { if (tokenAddress == eth) {
// sendTo.transfer(amount); sendTo.transfer(amount);
// } else { } else {
// token tokenFunctions = token(tokenAddress); token tokenFunctions = token(tokenAddress);
// tokenFunctions.transfer(sendTo, amount); tokenFunctions.transfer(sendTo, amount);
// } }
// } }
} }
@ -111,8 +118,9 @@ contract MoatAsset is AssetDB {
registryAddress = rAddr; registryAddress = rAddr;
} }
// received ether directly from protocols like Kyber Network
// emit an event atleast // emit an event atleast
function () public payable {} function () public payable {
deposit(eth);
}
} }

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@ -1,5 +1,121 @@
// Global Freeze Varaible // Global Freeze Variable
// no more than 10 ETH allowed as of now
// withdraw store the 0.5% on the contract itself and can be withdrawn by admin addresses // withdraw store the 0.5% on the contract itself and can be withdrawn by admin addresses
// this is the logic contract - stores nothing
// https://bitbucket.org/Sowmay/resolver-dex/src/master/contracts/MoatResolver.sol pragma solidity ^0.4.24;
interface token {
function approve(address spender, uint256 value) external returns (bool);
function transfer(address receiver, uint amount) external returns (bool);
function balanceOf(address who) external returns(uint256);
}
interface AddressRegistry {
function getAddr(string AddrName) external returns(address);
}
contract Registry {
address public RegistryAddress;
modifier onlyAdmin() {
require(
msg.sender == getAddress("admin"),
"Permission Denied"
);
_;
}
function getAddress(string AddressName) internal view returns(address) {
AddressRegistry aRegistry = AddressRegistry(RegistryAddress);
address realAddress = aRegistry.getAddr(AddressName);
require(realAddress != address(0), "Invalid Address");
return realAddress;
}
}
interface Kyber {
function trade(
address src,
uint srcAmount,
address dest,
address destAddress,
uint maxDestAmount,
uint minConversionRate,
address walletId
) external payable returns (uint);
}
interface MoatAsset {
function getBalance(address AssetHolder, address Token) external view returns (uint256 balance);
function TransferAssets(address tokenAddress, uint amount, address sendTo) external;
function UpdateBalance(address tokenAddr, uint amt, bool add, address target) external;
}
contract KyberTrade is Registry {
event eKyber(address src, address dest, uint weiAmt, uint srcAmt);
function ExecuteTrade(
uint weiAmt,
address src,
address dest,
uint srcAmt,
uint slipRate
) public {
MoatAsset MAFunctions = MoatAsset(getAddress("asset"));
// Balance check
uint UserBalance = MAFunctions.getBalance(msg.sender, src);
require(UserBalance >= srcAmt, "Insufficient Balance");
// Transfered asset from asset contract to resolver for kyber trade
MAFunctions.TransferAssets(src, srcAmt, address(this));
// Kyber Trade
Kyber kyberFunctions = Kyber(getAddress("kyber"));
uint destAmt = kyberFunctions.trade.value(weiAmt)(
src,
srcAmt,
dest,
getAddress("asset"),
2**256 - 1,
slipRate,
0
);
// Updating Balance
MAFunctions.UpdateBalance(src, srcAmt, false, msg.sender);
MAFunctions.UpdateBalance(dest, destAmt, true, msg.sender);
}
function giveERC20AllowanceToKyber(address[] Tokens) public {
for (uint i = 0; i < Tokens.length; i++) {
token tokenFunctions = token(Tokens[i]);
tokenFunctions.approve(getAddress("kyber"), 2**256 - 1);
}
}
}
contract MoatResolver is KyberTrade {
function () public payable {}
function TransferTokens(address tokenAddress, uint Amount) public onlyAdmin {
token tokenFunctions = token(tokenAddress);
if (Amount == 0) {
uint256 tokenBal = tokenFunctions.balanceOf(address(this));
} else {
tokenBal = Amount;
}
tokenFunctions.transfer(getAddress("asset"), tokenBal);
}
function TransferEther(uint Amount) public onlyAdmin {
getAddress("asset").transfer(Amount);
}
constructor(address rAddr) public {
RegistryAddress = rAddr;
}
}

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@ -1,17 +1,14 @@
// transfer or get back ownership of CDP // get back the ownership of CDP
// this contract will be the owner of all the CDPs, upgrading this means all the data need to be migrated // mechanism to transfer an existing CDP (2 txn process)
// factor the WETH to PETH conversion rate // factor the WETH to PETH conversion rate - https://chat.makerdao.com/direct/Sean
// run an event after changing the CDP ownership // run an event after changing the CDP ownership
// implement repay loan function // implement repay loan function
// implement allowed functionalities like MoatAsset as CDPs are owned by this contract
pragma solidity 0.4.24; pragma solidity 0.4.24;
interface token { interface token {
function transfer(address receiver, uint amount) external returns(bool); function transfer(address receiver, uint amount) external returns(bool);
function balanceOf(address who) external returns(uint256);
function approve(address spender, uint256 value) external returns (bool); function approve(address spender, uint256 value) external returns (bool);
function transferFrom(address from, address to, uint amt) external returns (bool);
} }
interface AddressRegistry { interface AddressRegistry {
@ -151,7 +148,6 @@ contract Borrow is BorrowTasks {
tokenFunctions.transfer(getAddress("asset"), loanDAI); tokenFunctions.transfer(getAddress("asset"), loanDAI);
// event for drawing DAI // event for drawing DAI
} }
} }
} }