mirror of
https://github.com/Instadapp/smart-contract.git
synced 2024-07-29 22:08:07 +00:00
moved 0.2.15 mcd basic actions to bin
This commit is contained in:
Thrilok Kumar
parent
34843239cb
commit
5b2142fe38
301
contracts/Bin/InstaMCD.sol
Normal file
301
contracts/Bin/InstaMCD.sol
Normal file
|
|
@ -0,0 +1,301 @@
|
|||
pragma solidity ^0.5.8;
|
||||
|
||||
interface GemLike {
|
||||
function approve(address, uint) external;
|
||||
function transfer(address, uint) external;
|
||||
function transferFrom(address, address, uint) external;
|
||||
function deposit() external payable;
|
||||
function withdraw(uint) external;
|
||||
}
|
||||
|
||||
interface JugLike {
|
||||
function drip(bytes32) external;
|
||||
}
|
||||
|
||||
interface ManagerLike {
|
||||
function cdpCan(address, uint, address) external view returns (uint);
|
||||
function ilks(uint) external view returns (bytes32);
|
||||
function owns(uint) external view returns (address);
|
||||
function urns(uint) external view returns (address);
|
||||
function vat() external view returns (address);
|
||||
function open(bytes32) external returns (uint);
|
||||
function give(uint, address) external;
|
||||
function cdpAllow(uint, address, uint) external;
|
||||
function urnAllow(address, uint) external;
|
||||
function frob(uint, int, int) external;
|
||||
function frob(
|
||||
uint,
|
||||
address,
|
||||
int,
|
||||
int
|
||||
) external;
|
||||
function flux(uint, address, uint) external;
|
||||
function move(uint, address, uint) external;
|
||||
function exit(
|
||||
address,
|
||||
uint,
|
||||
address,
|
||||
uint
|
||||
) external;
|
||||
function quit(uint, address) external;
|
||||
function enter(address, uint) external;
|
||||
function shift(uint, uint) external;
|
||||
}
|
||||
|
||||
interface VatLike {
|
||||
function can(address, address) external view returns (uint);
|
||||
function ilks(bytes32) external view returns (uint, uint, uint, uint, uint);
|
||||
function dai(address) external view returns (uint);
|
||||
function urns(bytes32, address) external view returns (uint, uint);
|
||||
function frob(
|
||||
bytes32,
|
||||
address,
|
||||
address,
|
||||
address,
|
||||
int,
|
||||
int
|
||||
) external;
|
||||
function hope(address) external;
|
||||
function move(address, address, uint) external;
|
||||
}
|
||||
|
||||
interface GemJoinLike {
|
||||
function dec() external returns (uint);
|
||||
function gem() external returns (GemLike);
|
||||
function join(address, uint) external payable;
|
||||
function exit(address, uint) external;
|
||||
}
|
||||
|
||||
interface GNTJoinLike {
|
||||
function bags(address) external view returns (address);
|
||||
function make(address) external returns (address);
|
||||
}
|
||||
|
||||
interface DaiJoinLike {
|
||||
function vat() external returns (VatLike);
|
||||
function dai() external returns (GemLike);
|
||||
function join(address, uint) external payable;
|
||||
function exit(address, uint) external;
|
||||
}
|
||||
|
||||
interface TokenInterface {
|
||||
function allowance(address, address) external view returns (uint);
|
||||
function balanceOf(address) external view returns (uint);
|
||||
function approve(address, uint) external;
|
||||
function transfer(address, uint) external returns (bool);
|
||||
function transferFrom(address, address, uint) external returns (bool);
|
||||
function deposit() external payable;
|
||||
function withdraw(uint) external;
|
||||
}
|
||||
|
||||
|
||||
contract DSMath {
|
||||
|
||||
function add(uint x, uint y) internal pure returns (uint z) {
|
||||
require((z = x + y) >= x, "math-not-safe");
|
||||
}
|
||||
|
||||
function sub(uint x, uint y) internal pure returns (uint z) {
|
||||
z = x - y <= x ? x - y : 0;
|
||||
}
|
||||
|
||||
function mul(uint x, uint y) internal pure returns (uint z) {
|
||||
require(y == 0 || (z = x * y) / y == x, "math-not-safe");
|
||||
}
|
||||
|
||||
uint constant WAD = 10 ** 18;
|
||||
uint constant RAY = 10 ** 27;
|
||||
|
||||
function rmul(uint x, uint y) internal pure returns (uint z) {
|
||||
z = add(mul(x, y), RAY / 2) / RAY;
|
||||
}
|
||||
|
||||
function wmul(uint x, uint y) internal pure returns (uint z) {
|
||||
z = add(mul(x, y), WAD / 2) / WAD;
|
||||
}
|
||||
|
||||
function rdiv(uint x, uint y) internal pure returns (uint z) {
|
||||
z = add(mul(x, RAY), y / 2) / y;
|
||||
}
|
||||
|
||||
function wdiv(uint x, uint y) internal pure returns (uint z) {
|
||||
z = add(mul(x, WAD), y / 2) / y;
|
||||
}
|
||||
|
||||
function toInt(uint x) internal pure returns (int y) {
|
||||
y = int(x);
|
||||
require(y >= 0, "int-overflow");
|
||||
}
|
||||
|
||||
function toRad(uint wad) internal pure returns (uint rad) {
|
||||
rad = mul(wad, 10 ** 27);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
contract Helpers is DSMath {
|
||||
|
||||
/**
|
||||
* @dev get MCD Manager Address
|
||||
*/
|
||||
function getmanagerAddress() public pure returns (address managerAddr) { // not in use
|
||||
managerAddr;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
contract CDPResolver is Helpers {
|
||||
event LogOpen(uint cdpNum, address owner);
|
||||
event LogGive(uint cdpNum, address owner, address nextOwner);
|
||||
event LogLock(uint cdpNum, uint amtETH, address owner);
|
||||
event LogFree(uint cdpNum, uint amtETH, address owner);
|
||||
event LogDraw(uint cdpNum, uint amtDAI, address owner);
|
||||
event LogWipe(uint cdpNum, uint daiAmt, address owner);
|
||||
|
||||
function open(address manager) public returns (uint cdp) {
|
||||
bytes32 ilk = 0x4554482d41000000000000000000000000000000000000000000000000000000;
|
||||
cdp = ManagerLike(manager).open(ilk);
|
||||
emit LogOpen(cdp, address(this));
|
||||
}
|
||||
|
||||
function give(address manager, uint cdp,address nextOwner) public {
|
||||
ManagerLike(manager).give(cdp, nextOwner);
|
||||
emit LogGive(cdp, address(this), nextOwner);
|
||||
}
|
||||
|
||||
function lockETH(address manager, address ethJoin, uint cdp) public payable {
|
||||
GemJoinLike(ethJoin).gem().deposit.value(msg.value)();
|
||||
GemJoinLike(ethJoin).gem().approve(address(ethJoin), msg.value);
|
||||
GemJoinLike(ethJoin).join(address(this), msg.value);
|
||||
|
||||
// Locks WETH amount into the CDP
|
||||
VatLike(ManagerLike(manager).vat()).frob(
|
||||
ManagerLike(manager).ilks(cdp),
|
||||
ManagerLike(manager).urns(cdp),
|
||||
address(this),
|
||||
address(this),
|
||||
int(msg.value),
|
||||
0
|
||||
);
|
||||
emit LogLock(cdp, msg.value, address(this));
|
||||
}
|
||||
|
||||
function freeETH(
|
||||
address manager,
|
||||
address ethJoin,
|
||||
uint cdp,
|
||||
uint wad
|
||||
) public
|
||||
{
|
||||
ManagerLike(manager).frob(
|
||||
cdp,
|
||||
address(this),
|
||||
-int(wad),
|
||||
0
|
||||
);
|
||||
GemJoinLike(ethJoin).exit(address(this), wad);
|
||||
|
||||
// Converts WETH to ETH
|
||||
GemJoinLike(ethJoin).gem().withdraw(wad);
|
||||
msg.sender.transfer(wad);
|
||||
emit LogFree(cdp, wad, address(this));
|
||||
}
|
||||
|
||||
function draw(
|
||||
address manager,
|
||||
address jug,
|
||||
address daiJoin,
|
||||
uint cdp,
|
||||
uint wad
|
||||
) public
|
||||
{
|
||||
address urn = ManagerLike(manager).urns(cdp);
|
||||
address vat = ManagerLike(manager).vat();
|
||||
bytes32 ilk = ManagerLike(manager).ilks(cdp);
|
||||
// Updates stability fee rate before generating new debt
|
||||
JugLike(jug).drip(ilk);
|
||||
|
||||
int dart;
|
||||
// Gets actual rate from the vat
|
||||
(, uint rate,,,) = VatLike(vat).ilks(ilk);
|
||||
// Gets DAI balance of the urn in the vat
|
||||
uint dai = VatLike(vat).dai(urn);
|
||||
|
||||
// If there was already enough DAI in the vat balance, just exits it without adding more debt
|
||||
if (dai < mul(wad, RAY)) {
|
||||
// Calculates the needed dart so together with the existing dai in the vat is enough to exit wad amount of DAI tokens
|
||||
dart = int(sub(mul(wad, RAY), dai) / rate);
|
||||
// This is neeeded due lack of precision. It might need to sum an extra dart wei (for the given DAI wad amount)
|
||||
dart = mul(uint(dart), rate) < mul(wad, RAY) ? dart + 1 : dart;
|
||||
}
|
||||
|
||||
ManagerLike(manager).frob(cdp, 0, dart);
|
||||
// Moves the DAI amount (balance in the vat in rad) to proxy's address
|
||||
ManagerLike(manager).move(cdp, address(this), toRad(wad));
|
||||
// Allows adapter to access to proxy's DAI balance in the vat
|
||||
if (VatLike(vat).can(address(this), address(daiJoin)) == 0) {
|
||||
VatLike(vat).hope(daiJoin);
|
||||
}
|
||||
DaiJoinLike(daiJoin).exit(msg.sender, wad);
|
||||
emit LogDraw(cdp, wad, address(this));
|
||||
}
|
||||
|
||||
function wipe (
|
||||
address manager,
|
||||
address daiJoin,
|
||||
uint cdp,
|
||||
uint wad
|
||||
) public
|
||||
{
|
||||
address vat = ManagerLike(manager).vat();
|
||||
address urn = ManagerLike(manager).urns(cdp);
|
||||
bytes32 ilk = ManagerLike(manager).ilks(cdp);
|
||||
|
||||
address own = ManagerLike(manager).owns(cdp);
|
||||
|
||||
(, uint rate,,,) = VatLike(vat).ilks(ilk);
|
||||
(, uint art) = VatLike(vat).urns(ilk, urn);
|
||||
|
||||
DaiJoinLike(daiJoin).dai().transferFrom(msg.sender, address(this), wad);
|
||||
DaiJoinLike(daiJoin).dai().approve(daiJoin, wad);
|
||||
|
||||
int dart;
|
||||
|
||||
if (own == address(this) || ManagerLike(manager).cdpCan(own, cdp, address(this)) == 1) {
|
||||
DaiJoinLike(daiJoin).join(urn, wad);
|
||||
|
||||
// Uses the whole dai balance in the vat to reduce the debt
|
||||
dart = toInt(VatLike(vat).dai(urn) / rate);
|
||||
// Checks the calculated dart is not higher than urn.art (total debt), otherwise uses its value
|
||||
dart = uint(dart) <= art ? - dart : - toInt(art);
|
||||
|
||||
ManagerLike(manager).frob(cdp, 0, dart);
|
||||
} else {
|
||||
DaiJoinLike(daiJoin).join(address(this), wad);
|
||||
|
||||
// Uses the whole dai balance in the vat to reduce the debt
|
||||
dart = toInt(wad * RAY / rate);
|
||||
// Checks the calculated dart is not higher than urn.art (total debt), otherwise uses its value
|
||||
dart = uint(dart) <= art ? - dart : - toInt(art);
|
||||
|
||||
VatLike(vat).frob(
|
||||
ilk,
|
||||
urn,
|
||||
address(this),
|
||||
address(this),
|
||||
0,
|
||||
dart
|
||||
);
|
||||
}
|
||||
emit LogWipe(cdp, wad, address(this));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
contract InstaMCD is CDPResolver {
|
||||
|
||||
function() external payable {}
|
||||
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user