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Contract Source Code Verified (Exact Match)

Contract Name:
DssSpell

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
No with 200 runs

Other Settings:
default evmVersion, GNU AGPLv3 license

Contract Source Code (Solidity)

/**
 *Submitted for verification at Etherscan.io on 2022-10-26
*/

// hevm: flattened sources of src/DssSpell.sol
// SPDX-License-Identifier: AGPL-3.0-or-later
pragma solidity =0.6.12 >=0.6.12 <0.7.0;
pragma experimental ABIEncoderV2;

////// lib/dss-exec-lib/src/CollateralOpts.sol
/* pragma solidity ^0.6.12; */

struct CollateralOpts {
    bytes32 ilk;
    address gem;
    address join;
    address clip;
    address calc;
    address pip;
    bool    isLiquidatable;
    bool    isOSM;
    bool    whitelistOSM;
    uint256 ilkDebtCeiling;
    uint256 minVaultAmount;
    uint256 maxLiquidationAmount;
    uint256 liquidationPenalty;
    uint256 ilkStabilityFee;
    uint256 startingPriceFactor;
    uint256 breakerTolerance;
    uint256 auctionDuration;
    uint256 permittedDrop;
    uint256 liquidationRatio;
    uint256 kprFlatReward;
    uint256 kprPctReward;
}

////// lib/dss-exec-lib/src/DssExecLib.sol
//
// DssExecLib.sol -- MakerDAO Executive Spellcrafting Library
//
// Copyright (C) 2020 Maker Ecosystem Growth Holdings, Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
/* pragma solidity ^0.6.12; */
/* pragma experimental ABIEncoderV2; */

/* import { CollateralOpts } from "./CollateralOpts.sol"; */

interface Initializable {
    function init(bytes32) external;
}

interface Authorizable {
    function rely(address) external;
    function deny(address) external;
    function setAuthority(address) external;
}

interface Fileable {
    function file(bytes32, address) external;
    function file(bytes32, uint256) external;
    function file(bytes32, bytes32, uint256) external;
    function file(bytes32, bytes32, address) external;
}

interface Drippable {
    function drip() external returns (uint256);
    function drip(bytes32) external returns (uint256);
}

interface Pricing {
    function poke(bytes32) external;
}

interface ERC20 {
    function decimals() external returns (uint8);
}

interface DssVat {
    function hope(address) external;
    function nope(address) external;
    function ilks(bytes32) external returns (uint256 Art, uint256 rate, uint256 spot, uint256 line, uint256 dust);
    function Line() external view returns (uint256);
    function suck(address, address, uint) external;
}

interface ClipLike {
    function vat() external returns (address);
    function dog() external returns (address);
    function spotter() external view returns (address);
    function calc() external view returns (address);
    function ilk() external returns (bytes32);
}

interface DogLike {
    function ilks(bytes32) external returns (address clip, uint256 chop, uint256 hole, uint256 dirt);
}

interface JoinLike {
    function vat() external returns (address);
    function ilk() external returns (bytes32);
    function gem() external returns (address);
    function dec() external returns (uint256);
    function join(address, uint) external;
    function exit(address, uint) external;
}

// Includes Median and OSM functions
interface OracleLike_2 {
    function src() external view returns (address);
    function lift(address[] calldata) external;
    function drop(address[] calldata) external;
    function setBar(uint256) external;
    function kiss(address) external;
    function diss(address) external;
    function kiss(address[] calldata) external;
    function diss(address[] calldata) external;
    function orb0() external view returns (address);
    function orb1() external view returns (address);
}

interface MomLike {
    function setOsm(bytes32, address) external;
    function setPriceTolerance(address, uint256) external;
}

interface RegistryLike {
    function add(address) external;
    function xlip(bytes32) external view returns (address);
}

// https://github.com/makerdao/dss-chain-log
interface ChainlogLike {
    function setVersion(string calldata) external;
    function setIPFS(string calldata) external;
    function setSha256sum(string calldata) external;
    function getAddress(bytes32) external view returns (address);
    function setAddress(bytes32, address) external;
    function removeAddress(bytes32) external;
}

interface IAMLike {
    function ilks(bytes32) external view returns (uint256,uint256,uint48,uint48,uint48);
    function setIlk(bytes32,uint256,uint256,uint256) external;
    function remIlk(bytes32) external;
    function exec(bytes32) external returns (uint256);
}

interface LerpFactoryLike {
    function newLerp(bytes32 name_, address target_, bytes32 what_, uint256 startTime_, uint256 start_, uint256 end_, uint256 duration_) external returns (address);
    function newIlkLerp(bytes32 name_, address target_, bytes32 ilk_, bytes32 what_, uint256 startTime_, uint256 start_, uint256 end_, uint256 duration_) external returns (address);
}

interface LerpLike {
    function tick() external returns (uint256);
}


library DssExecLib {

    /* WARNING

The following library code acts as an interface to the actual DssExecLib
library, which can be found in its own deployed contract. Only trust the actual
library's implementation.

    */

    address constant public LOG = 0xdA0Ab1e0017DEbCd72Be8599041a2aa3bA7e740F;
    uint256 constant internal WAD      = 10 ** 18;
    uint256 constant internal RAY      = 10 ** 27;
    uint256 constant internal RAD      = 10 ** 45;
    uint256 constant internal THOUSAND = 10 ** 3;
    uint256 constant internal MILLION  = 10 ** 6;
    uint256 constant internal BPS_ONE_PCT             = 100;
    uint256 constant internal BPS_ONE_HUNDRED_PCT     = 100 * BPS_ONE_PCT;
    uint256 constant internal RATES_ONE_HUNDRED_PCT   = 1000000021979553151239153027;
    function add(uint256 x, uint256 y) internal pure returns (uint256 z) {}
    function mul(uint256 x, uint256 y) internal pure returns (uint256 z) {}
    function wdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {}
    function rdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {}
    function vat()        public view returns (address) { return getChangelogAddress("MCD_VAT"); }
    function cat()        public view returns (address) { return getChangelogAddress("MCD_CAT"); }
    function dog()        public view returns (address) { return getChangelogAddress("MCD_DOG"); }
    function jug()        public view returns (address) { return getChangelogAddress("MCD_JUG"); }
    function pot()        public view returns (address) { return getChangelogAddress("MCD_POT"); }
    function vow()        public view returns (address) { return getChangelogAddress("MCD_VOW"); }
    function end()        public view returns (address) { return getChangelogAddress("MCD_END"); }
    function esm()        public view returns (address) { return getChangelogAddress("MCD_ESM"); }
    function reg()        public view returns (address) { return getChangelogAddress("ILK_REGISTRY"); }
    function spotter()    public view returns (address) { return getChangelogAddress("MCD_SPOT"); }
    function osmMom()     public view returns (address) { return getChangelogAddress("OSM_MOM"); }
    function clipperMom() public view returns (address) { return getChangelogAddress("CLIPPER_MOM"); }
    function lerpFab()    public view returns (address) { return getChangelogAddress("LERP_FAB"); }
    function clip(bytes32 _ilk) public view returns (address _clip) {}
    function flip(bytes32 _ilk) public view returns (address _flip) {}
    function calc(bytes32 _ilk) public view returns (address _calc) {}
    function getChangelogAddress(bytes32 _key) public view returns (address) {}
    function setChangelogAddress(bytes32 _key, address _val) public {}
    function setChangelogVersion(string memory _version) public {}
    function authorize(address _base, address _ward) public {}
    function setAuthority(address _base, address _authority) public {}
    function canCast(uint40 _ts, bool _officeHours) public pure returns (bool) {}
    function nextCastTime(uint40 _eta, uint40 _ts, bool _officeHours) public pure returns (uint256 castTime) {}
    function updateCollateralPrice(bytes32 _ilk) public {}
    function setContract(address _base, bytes32 _what, address _addr) public {}
    function setContract(address _base, bytes32 _ilk, bytes32 _what, address _addr) public {}
    function setValue(address _base, bytes32 _what, uint256 _amt) public {}
    function setValue(address _base, bytes32 _ilk, bytes32 _what, uint256 _amt) public {}
    function increaseGlobalDebtCeiling(uint256 _amount) public {}
    function setIlkDebtCeiling(bytes32 _ilk, uint256 _amount) public {}
    function setIlkMinVaultAmount(bytes32 _ilk, uint256 _amount) public {}
    function setIlkLiquidationPenalty(bytes32 _ilk, uint256 _pct_bps) public {}
    function setIlkMaxLiquidationAmount(bytes32 _ilk, uint256 _amount) public {}
    function setIlkLiquidationRatio(bytes32 _ilk, uint256 _pct_bps) public {}
    function setStartingPriceMultiplicativeFactor(bytes32 _ilk, uint256 _pct_bps) public {}
    function setAuctionTimeBeforeReset(bytes32 _ilk, uint256 _duration) public {}
    function setAuctionPermittedDrop(bytes32 _ilk, uint256 _pct_bps) public {}
    function setKeeperIncentivePercent(bytes32 _ilk, uint256 _pct_bps) public {}
    function setKeeperIncentiveFlatRate(bytes32 _ilk, uint256 _amount) public {}
    function setLiquidationBreakerPriceTolerance(address _clip, uint256 _pct_bps) public {}
    function setIlkStabilityFee(bytes32 _ilk, uint256 _rate, bool _doDrip) public {}
    function setStairstepExponentialDecrease(address _calc, uint256 _duration, uint256 _pct_bps) public {}
    function whitelistOracleMedians(address _oracle) public {}
    function addReaderToWhitelist(address _oracle, address _reader) public {}
    function addReaderToWhitelistCall(address _oracle, address _reader) public {}
    function allowOSMFreeze(address _osm, bytes32 _ilk) public {}
    function addCollateralBase(
        bytes32 _ilk,
        address _gem,
        address _join,
        address _clip,
        address _calc,
        address _pip
    ) public {}
    function addNewCollateral(CollateralOpts memory co) public {}
    function linearInterpolation(bytes32 _name, address _target, bytes32 _ilk, bytes32 _what, uint256 _startTime, uint256 _start, uint256 _end, uint256 _duration) public returns (address) {}
}

////// lib/dss-exec-lib/src/DssAction.sol
//
// DssAction.sol -- DSS Executive Spell Actions
//
// Copyright (C) 2020 Maker Ecosystem Growth Holdings, Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

/* pragma solidity ^0.6.12; */

/* import { DssExecLib } from "./DssExecLib.sol"; */
/* import { CollateralOpts } from "./CollateralOpts.sol"; */

interface OracleLike_1 {
    function src() external view returns (address);
}

abstract contract DssAction {

    using DssExecLib for *;

    // Modifier used to limit execution time when office hours is enabled
    modifier limited {
        require(DssExecLib.canCast(uint40(block.timestamp), officeHours()), "Outside office hours");
        _;
    }

    // Office Hours defaults to true by default.
    //   To disable office hours, override this function and
    //    return false in the inherited action.
    function officeHours() public virtual returns (bool) {
        return true;
    }

    // DssExec calls execute. We limit this function subject to officeHours modifier.
    function execute() external limited {
        actions();
    }

    // DssAction developer must override `actions()` and place all actions to be called inside.
    //   The DssExec function will call this subject to the officeHours limiter
    //   By keeping this function public we allow simulations of `execute()` on the actions outside of the cast time.
    function actions() public virtual;

    // Provides a descriptive tag for bot consumption
    // This should be modified weekly to provide a summary of the actions
    // Hash: seth keccak -- "$(wget https://<executive-vote-canonical-post> -q -O - 2>/dev/null)"
    function description() external virtual view returns (string memory);

    // Returns the next available cast time
    function nextCastTime(uint256 eta) external returns (uint256 castTime) {
        require(eta <= uint40(-1));
        castTime = DssExecLib.nextCastTime(uint40(eta), uint40(block.timestamp), officeHours());
    }
}

////// lib/dss-exec-lib/src/DssExec.sol
//
// DssExec.sol -- MakerDAO Executive Spell Template
//
// Copyright (C) 2020 Maker Ecosystem Growth Holdings, Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

/* pragma solidity ^0.6.12; */

interface PauseAbstract {
    function delay() external view returns (uint256);
    function plot(address, bytes32, bytes calldata, uint256) external;
    function exec(address, bytes32, bytes calldata, uint256) external returns (bytes memory);
}

interface Changelog {
    function getAddress(bytes32) external view returns (address);
}

interface SpellAction {
    function officeHours() external view returns (bool);
    function description() external view returns (string memory);
    function nextCastTime(uint256) external view returns (uint256);
}

contract DssExec {

    Changelog      constant public log   = Changelog(0xdA0Ab1e0017DEbCd72Be8599041a2aa3bA7e740F);
    uint256                 public eta;
    bytes                   public sig;
    bool                    public done;
    bytes32       immutable public tag;
    address       immutable public action;
    uint256       immutable public expiration;
    PauseAbstract immutable public pause;

    // Provides a descriptive tag for bot consumption
    // This should be modified weekly to provide a summary of the actions
    // Hash: seth keccak -- "$(wget https://<executive-vote-canonical-post> -q -O - 2>/dev/null)"
    function description() external view returns (string memory) {
        return SpellAction(action).description();
    }

    function officeHours() external view returns (bool) {
        return SpellAction(action).officeHours();
    }

    function nextCastTime() external view returns (uint256 castTime) {
        return SpellAction(action).nextCastTime(eta);
    }

    // @param _description  A string description of the spell
    // @param _expiration   The timestamp this spell will expire. (Ex. now + 30 days)
    // @param _spellAction  The address of the spell action
    constructor(uint256 _expiration, address _spellAction) public {
        pause       = PauseAbstract(log.getAddress("MCD_PAUSE"));
        expiration  = _expiration;
        action      = _spellAction;

        sig = abi.encodeWithSignature("execute()");
        bytes32 _tag;                    // Required for assembly access
        address _action = _spellAction;  // Required for assembly access
        assembly { _tag := extcodehash(_action) }
        tag = _tag;
    }

    function schedule() public {
        require(now <= expiration, "This contract has expired");
        require(eta == 0, "This spell has already been scheduled");
        eta = now + PauseAbstract(pause).delay();
        pause.plot(action, tag, sig, eta);
    }

    function cast() public {
        require(!done, "spell-already-cast");
        done = true;
        pause.exec(action, tag, sig, eta);
    }
}

////// src/DssSpellCollateral.sol
// SPDX-FileCopyrightText: © 2022 Dai Foundation <www.daifoundation.org>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

/* pragma solidity 0.6.12; */

/* import "dss-exec-lib/DssExecLib.sol"; */

contract DssSpellCollateralAction {

    // --- Rates ---
    // Many of the settings that change weekly rely on the rate accumulator
    // described at https://docs.makerdao.com/smart-contract-modules/rates-module
    // To check this yourself, use the following rate calculation (example 8%):
    //
    // $ bc -l <<< 'scale=27; e( l(1.08)/(60 * 60 * 24 * 365) )'
    //
    // A table of rates can be found at
    // https://ipfs.io/ipfs/QmVp4mhhbwWGTfbh2BzwQB9eiBrQBKiqcPRZCaAxNUaar6
    //
    uint256 internal constant ONE_FIVE_PCT_RATE = 1000000000472114805215157978;
    
    // --- Math ---
    uint256 constant THOUSAND   = 10 ** 3;
    uint256 constant MILLION    = 10 ** 6;
    // uint256 constant BILLION    = 10 ** 9;

    // --- DEPLOYED COLLATERAL ADDRESSES ---
    address internal constant RETH                 = 0xae78736Cd615f374D3085123A210448E74Fc6393;
    address internal constant PIP_RETH             = 0xeE7F0b350aA119b3d05DC733a4621a81972f7D47;
    address internal constant MCD_JOIN_RETH_A      = 0xC6424e862f1462281B0a5FAc078e4b63006bDEBF;
    address internal constant MCD_CLIP_RETH_A      = 0x27CA5E525ea473eD52Ea9423CD08cCc081d96a98;
    address internal constant MCD_CLIP_CALC_RETH_A = 0xc59B62AFC96cf9737F717B5e5815070C0f154396;

    function collateralAction() internal {
        onboardCollaterals();
        //updateCollaterals();
        //offboardCollaterals();
    }

    function onboardCollaterals() internal {
        // ----------------------------- Collateral onboarding -----------------------------
        //  Add RETH-A as a new Vault Type
        //  Poll Link 1: https://vote.makerdao.com/polling/QmfMswF2
        //  Poll Link 2: https://vote.makerdao.com/polling/QmS7dBuQ
        //  Forum Post:  https://forum.makerdao.com/t/reth-collateral-onboarding-risk-evaluation/15286

        DssExecLib.addNewCollateral(
            CollateralOpts({
                ilk:                  "RETH-A",
                gem:                  RETH,
                join:                 MCD_JOIN_RETH_A,
                clip:                 MCD_CLIP_RETH_A,
                calc:                 MCD_CLIP_CALC_RETH_A,
                pip:                  PIP_RETH,
                isLiquidatable:       true,
                isOSM:                true,
                whitelistOSM:         true,
                ilkDebtCeiling:       0,                 // line updated to 0 (previously 5M)
                minVaultAmount:       15 * THOUSAND,            // debt floor - dust in DAI
                maxLiquidationAmount: 2 * MILLION,
                liquidationPenalty:   13_00,             // 13% penalty on liquidation
                ilkStabilityFee:      ONE_FIVE_PCT_RATE, // 1.50% stability fee
                startingPriceFactor:  110_00,            // Auction price begins at 110% of oracle price
                breakerTolerance:     50_00,             // Allows for a 50% hourly price drop before disabling liquidation
                auctionDuration:      120 minutes,
                permittedDrop:        45_00,             // 45% price drop before reset
                liquidationRatio:     170_00,            // 170% collateralization
                kprFlatReward:        250,               // 250 DAI tip - flat fee per kpr
                kprPctReward:         10                 // 0.1% chip - per kpr
            })
        );

        DssExecLib.setStairstepExponentialDecrease(MCD_CLIP_CALC_RETH_A, 90 seconds, 99_00);

        // ChainLog Updates
        // Add the new join, clip, and abacus to the Chainlog
        DssExecLib.setChangelogAddress("RETH",                 RETH);
        DssExecLib.setChangelogAddress("PIP_RETH",             PIP_RETH);
        DssExecLib.setChangelogAddress("MCD_JOIN_RETH_A",      MCD_JOIN_RETH_A);
        DssExecLib.setChangelogAddress("MCD_CLIP_RETH_A",      MCD_CLIP_RETH_A);
        DssExecLib.setChangelogAddress("MCD_CLIP_CALC_RETH_A", MCD_CLIP_CALC_RETH_A);

    }

    function updateCollaterals() internal {
        // ------------------------------- Collateral updates -------------------------------

        // Enable autoline for XXX-A
        // Poll Link:
        // Forum Link:
        // DssExecLib.setIlkAutoLineParameters(
        //    XXX-A,
        //    AMOUNT,
        //    GAP,
        //    TTL
        // );
    }

    function offboardCollaterals() internal {
        // ----------------------------- Collateral offboarding -----------------------------
        // 1st Stage of Collateral Offboarding Process
        // Poll Link:
        // uint256 line;
        // uint256 lineReduction;

        // Set XXX-A Maximum Debt Ceiling to 0
        // (,,,line,) = vat.ilks("XXX-A");
        // lineReduction += line;
        // DssExecLib.removeIlkFromAutoLine("XXX-A");
        // DssExecLib.setIlkDebtCeiling("XXX-A", 0);

        // Set XXX-A Maximum Debt Ceiling to 0
        // (,,,line,) = vat.ilks("XXX-A");
        // lineReduction += line;
        // DssExecLib.removeIlkFromAutoLine("XXX-A");
        // DssExecLib.setIlkDebtCeiling("XXX-A", 0);

        // Decrease Global Debt Ceiling by total amount of offboarded ilks
        // vat.file("Line", _sub(vat.Line(), lineReduction));

        // 2nd Stage of Collateral Offboarding Process
        // address spotter = DssExecLib.spotter();

        // Offboard XXX-A
        // Poll Link:
        // Forum Link:

        // DssExecLib.setIlkLiquidationPenalty("XXX-A", 0);
        // DssExecLib.setKeeperIncentiveFlatRate("XXX-A", 0);
        // DssExecLib.linearInterpolation({
        //     _name:      "XXX-A Offboarding",
        //     _target:    spotter,
        //     _ilk:       "XXX-A",
        //     _what:      "mat",
        //     _startTime: block.timestamp,
        //     _start:     CURRENT_XXX_A_MAT,
        //     _end:       TARGET_XXX_A_MAT,
        //     _duration:  30 days
        // });

        // Offboard XXX-A
        // Poll Link:
        // Forum Link:

        // DssExecLib.setIlkLiquidationPenalty("XXX-A", 0);
        // DssExecLib.setKeeperIncentiveFlatRate("XXX-A", 0);
        // DssExecLib.linearInterpolation({
        //     _name:      "XXX-A Offboarding",
        //     _target:    spotter,
        //     _ilk:       "XXX-A",
        //     _what:      "mat",
        //     _startTime: block.timestamp,
        //     _start:     CURRENT_XXX_A_MAT,
        //     _end:       TARGET_XXX_A_MAT,
        //     _duration:  30 days
        // });
    }

    // --- Offboarding: Current Liquidation Ratio ---
    // uint256 constant CURRENT_XXX_A_MAT              =  XYZ * RAY / 100;

    // --- Offboarding: Target Liquidation Ratio ---
    // uint256 constant TARGET_XXX_A_MAT               =  XYZ * RAY / 100;

}

////// src/DssSpell.sol
// SPDX-FileCopyrightText: © 2020 Dai Foundation <www.daifoundation.org>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

/* pragma solidity 0.6.12; */
// Enable ABIEncoderV2 when onboarding collateral through `DssExecLib.addNewCollateral()`
/* pragma experimental ABIEncoderV2; */

/* import "dss-exec-lib/DssExec.sol"; */
/* import "dss-exec-lib/DssAction.sol"; */

/* import { DssSpellCollateralAction } from "./DssSpellCollateral.sol"; */

interface StarknetBridgeLike {
    function close() external;
    function isOpen() external returns (uint256);
}

interface StarknetGovRelayLike_1 {
    function relay(uint256 spell) external;
}

interface StarknetEscrowLike_1 {
    function approve(address token, address spender, uint256 value) external;
}


contract DssSpellAction is DssAction, DssSpellCollateralAction {
    // Provides a descriptive tag for bot consumption
    // This should be modified weekly to provide a summary of the actions
    // Hash: cast keccak -- "$(wget https://raw.githubusercontent.com/makerdao/community/27dc14fd37c03c152eca32296076f5603c9fd4db/governance/votes/Executive%20vote%20-%20October%2026%2C%202022.md -q -O - 2>/dev/null)"

    string public constant override description =
        "2022-10-26 MakerDAO Executive Spell | Hash: 0x2e8fa79dc9702f6d3b8b03523fc45c4f3f95751a833e52958d64182b0ec8b2a5";

    // Turn office hours on
    /* function officeHours() public override returns (bool) {
        return false;
    } */

    // Many of the settings that change weekly rely on the rate accumulator
    // described at https://docs.makerdao.com/smart-contract-modules/rates-module
    // To check this yourself, use the following rate calculation (example 8%):
    //
    // $ bc -l <<< 'scale=27; e( l(1.08)/(60 * 60 * 24 * 365) )'
    //
    // A table of rates can be found at
    //    https://ipfs.io/ipfs/QmVp4mhhbwWGTfbh2BzwQB9eiBrQBKiqcPRZCaAxNUaar6
    //

    // --- Rates ---
    // uint256 internal constant ONE_FIVE_PCT_RATE = 1000000000472114805215157978;

    // --- Math ---
    // uint256 internal constant WAD = 10 ** 18;

    address internal constant NEW_STARKNET_DAI_BRIDGE = 0x9F96fE0633eE838D0298E8b8980E6716bE81388d;
    uint256 internal constant L2_FEE_SPELL = 0x0726cf4161e783ef0043e4998c61ecd70ea3e6f673fd7cf1060130529f849bc2;

    function actions() public override {

        // ---------------------------------------------------------------------
        // rETH Onboarding
        // Vote: https://vote.makerdao.com/polling/QmfMswF2#poll-detail
        // Vote: https://vote.makerdao.com/polling/QmS7dBuQ#poll-detail
        // Forum: https://forum.makerdao.com/t/reth-collateral-onboarding-risk-evaluation/15286

        // Includes changes from the DssSpellCollateralAction
        collateralAction();

        // Starknet Bridge Fee Upgrade
        // Vote: https://vote.makerdao.com/polling/QmbWkTvW#poll-detail
        // Forum: https://forum.makerdao.com/t/starknet-changes-for-2022-10-26-executive-spell/18468

        // Close the current bridge
        address currentStarknetDAIBridge = DssExecLib.getChangelogAddress("STARKNET_DAI_BRIDGE");
        (bool currentBridgeClosed,) = currentStarknetDAIBridge.call(abi.encodeWithSignature("close()"));

        // Approve new bridge and cast spell only if the current bridge has closed successfully
        if(currentBridgeClosed == true && StarknetBridgeLike(currentStarknetDAIBridge).isOpen() == 0){
            // Bridge code at time of casting: https://github.com/makerdao/starknet-dai-bridge/blob/ad9f53425582c39c29cb3a7420e430ab01a46d4d/contracts/l1/L1DAIBridge.sol
            address starknetEscrow = DssExecLib.getChangelogAddress("STARKNET_ESCROW");
            address dai = DssExecLib.getChangelogAddress("MCD_DAI");
            StarknetEscrowLike_1(starknetEscrow).approve(dai, NEW_STARKNET_DAI_BRIDGE, type(uint).max);
            // Relay the L2 spell content
            // See: https://voyager.online/contract/0x0726cf4161e783ef0043e4998c61ecd70ea3e6f673fd7cf1060130529f849bc2#code
            address starknetGovRelay = DssExecLib.getChangelogAddress("STARKNET_GOV_RELAY");
            StarknetGovRelayLike_1(starknetGovRelay).relay(L2_FEE_SPELL);
            // ChangeLog
            DssExecLib.setChangelogAddress("STARKNET_DAI_BRIDGE", NEW_STARKNET_DAI_BRIDGE);
            DssExecLib.setChangelogAddress("STARKNET_DAI_BRIDGE_LEGACY", currentStarknetDAIBridge);
        }

        // Bump changelog version either way, due to rETH onboarding
        DssExecLib.setChangelogVersion("1.14.3");
    }
}

contract DssSpell is DssExec {
    constructor() DssExec(block.timestamp + 30 days, address(new DssSpellAction())) public {}
}

Contract Security Audit

Contract ABI

API
[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"action","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"cast","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"description","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"done","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"eta","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"expiration","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"log","outputs":[{"internalType":"contract Changelog","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nextCastTime","outputs":[{"internalType":"uint256","name":"castTime","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"officeHours","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[{"internalType":"contract PauseAbstract","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"schedule","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"sig","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tag","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"}]

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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.