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bridge contract almost completed

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This commit is contained in:
Samyak Jain 2019-06-08 19:53:34 +05:30
parent db59e27560
commit ccd5d036a8
1 changed files with 29 additions and 14 deletions
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43
contracts/bridges/MakerCompound.sol
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@ -64,15 +64,17 @@ contract DSMath {
contract Helper is DSMath { contract Helper is DSMath {
address public admin = 0x7284a8451d9a0e7Dc62B3a71C0593eA2eC5c5638; address public adminAdd = 0x7284a8451d9a0e7Dc62B3a71C0593eA2eC5c5638;
address public dai = 0x89d24A6b4CcB1B6fAA2625fE562bDD9a23260359; address public daiAdd = 0x89d24A6b4CcB1B6fAA2625fE562bDD9a23260359;
address public cDai = 0xF5DCe57282A584D2746FaF1593d3121Fcac444dC; address public cDaiAdd = 0xF5DCe57282A584D2746FaF1593d3121Fcac444dC;
address public registryAdd = 0xF5DCe57282A584D2746FaF1593d3121Fcac444dC;
mapping (address => uint) deposited; // Amount of CToken deposited mapping (address => uint) deposited; // Amount of CToken deposited
/** /**
* @dev setting allowance to compound for the "user proxy" if required * @dev setting allowance to compound for the "user proxy" if required
*/ */
function setApproval(address erc20, uint srcAmt, address to) internal { function setApproval(address erc20, uint srcAmt, address to) public {
require(msg.sender == adminAdd, "Not-Admin");
ERC20Interface erc20Contract = ERC20Interface(erc20); ERC20Interface erc20Contract = ERC20Interface(erc20);
uint tokenAllowance = erc20Contract.allowance(address(this), to); uint tokenAllowance = erc20Contract.allowance(address(this), to);
if (srcAmt > tokenAllowance) { if (srcAmt > tokenAllowance) {
@ -86,21 +88,34 @@ contract Helper is DSMath {
contract Bridge is Helper { contract Bridge is Helper {
function depositDAI(uint amt) public { function depositDAI(uint amt) public {
ERC20Interface tokenContract = ERC20Interface(dai); ERC20Interface tokenContract = ERC20Interface(daiAdd);
uint toDeposit = tokenContract.balanceOf(msg.sender); uint toDeposit = amt;
if (toDeposit > amt) {
toDeposit = amt;
}
tokenContract.transferFrom(msg.sender, address(this), toDeposit); tokenContract.transferFrom(msg.sender, address(this), toDeposit);
CTokenInterface cToken = CTokenInterface(cDai); CTokenInterface cToken = CTokenInterface(cDaiAdd);
setApproval(dai, toDeposit, cDai);
assert(cToken.mint(toDeposit) == 0); assert(cToken.mint(toDeposit) == 0);
uint cTokenMinted = wdiv(toDeposit, cToken.exchangeRateCurrent());
deposited[msg.sender] += cTokenMinted;
} }
function withdrawDAI(uint amt) public { function depositCDAI(uint amt) public {
CTokenInterface cToken = CTokenInterface(cDaiAdd);
cToken.transferFrom(msg.sender, address(this), amt);
deposited[msg.sender] += amt;
}
function withdrawCDAI(uint amt) public {
CTokenInterface cToken = CTokenInterface(cDaiAdd);
uint withdrawAmt = amt;
if (withdrawAmt > deposited[msg.sender]) {
withdrawAmt = deposited[msg.sender];
}
cToken.transfer(msg.sender, withdrawAmt);
deposited[msg.sender] -= withdrawAmt;
}
function transferDAI(uint amt) public {
require(RegistryInterface(registryAdd).proxies(msg.sender) != address(0), "Not-User-Wallet");
CTokenInterface cToken = CTokenInterface(cDaiAdd);
require(cToken.redeemUnderlying(amt) == 0, "something went wrong");
ERC20Interface(daiAdd).transfer(msg.sender, amt);
} }
} }