Instadapp/smart-contract
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This commit is contained in:
Samyak Jain 2019-06-12 14:33:00 +05:30
parent b6430ee85a
commit de36b39a89
1 changed files with 23 additions and 7 deletions
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30
contracts/bridges/MakerCompound.sol
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@ -64,17 +64,17 @@ contract DSMath {
contract Helper is DSMath {
address public adminAdd = 0x7284a8451d9a0e7Dc62B3a71C0593eA2eC5c5638;
address public daiAdd = 0x89d24A6b4CcB1B6fAA2625fE562bDD9a23260359;
address public cDaiAdd = 0xF5DCe57282A584D2746FaF1593d3121Fcac444dC;
address public registryAdd = 0xF5DCe57282A584D2746FaF1593d3121Fcac444dC;
mapping (address => uint) deposited; // Amount of CToken deposited
mapping (address => uint) public deposited; // Amount of CToken deposited
mapping (address => bool) public isAdmin;
/**
* @dev setting allowance to compound for the "user proxy" if required
*/
function setApproval(address erc20, uint srcAmt, address to) public {
require(msg.sender == adminAdd, "Not-Admin");
require(isAdmin[msg.sender] == true, "Not-Admin");
ERC20Interface erc20Contract = ERC20Interface(erc20);
uint tokenAllowance = erc20Contract.allowance(address(this), to);
if (srcAmt > tokenAllowance) {
@ -88,11 +88,24 @@ contract Helper is DSMath {
contract Bridge is Helper {
function depositDAI(uint amt) public {
ERC20Interface tokenContract = ERC20Interface(daiAdd);
uint toDeposit = amt;
tokenContract.transferFrom(msg.sender, address(this), toDeposit);
ERC20Interface(daiAdd).transferFrom(msg.sender, address(this), amt);
CTokenInterface cToken = CTokenInterface(cDaiAdd);
assert(cToken.mint(toDeposit) == 0);
assert(cToken.mint(amt) == 0);
uint cDaiAmt = wdiv(amt, cToken.exchangeRateCurrent());
deposited[msg.sender] += cDaiAmt;
}
function withdrawDAI(uint amt) public {
CTokenInterface cToken = CTokenInterface(cDaiAdd);
uint withdrawAmt = wdiv(amt, cToken.exchangeRateCurrent());
uint daiAmt = amt;
if (withdrawAmt > deposited[msg.sender]) {
withdrawAmt = deposited[msg.sender];
daiAmt = wmul(withdrawAmt, cToken.exchangeRateCurrent());
}
require(cToken.redeem(withdrawAmt) == 0, "something went wrong");
ERC20Interface(daiAdd).transfer(msg.sender, daiAmt);
deposited[msg.sender] -= withdrawAmt;
}
function depositCDAI(uint amt) public {
@ -102,6 +115,7 @@ contract Bridge is Helper {
}
function withdrawCDAI(uint amt) public {
require(deposited[msg.sender] != 0, "something went wrong");
CTokenInterface cToken = CTokenInterface(cDaiAdd);
uint withdrawAmt = amt;
if (withdrawAmt > deposited[msg.sender]) {
@ -138,6 +152,8 @@ contract MakerCompBridge is Bridge {
* 1...2...3 versioning in each subsequent deployments
*/
constructor(uint _version) public {
isAdmin[0x7284a8451d9a0e7Dc62B3a71C0593eA2eC5c5638] = true;
isAdmin[0xa7615CD307F323172331865181DC8b80a2834324] = true;
version = _version;
}