question:here is the lib // SPDX-License-Identifier: GPL-2.0-or-later pragma solidity 0.8.19; import {AggregatorV3Interface} from "@chainlink/interfaces/AggregatorV3Interface.sol"; import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol"; import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import {SafeMath} from "@openzeppelin/contracts/utils/math/SafeMath.sol"; import {IDollarAmoMinter} from "../interfaces/IDollarAmoMinter.sol"; import {IERC20Ubiquity} from "../interfaces/IERC20Ubiquity.sol"; import {UBIQUITY_POOL_PRICE_PRECISION} from "./Constants.sol"; import {LibAppStorage} from "./LibAppStorage.sol"; import {LibTWAPOracle} from "./LibTWAPOracle.sol"; /** * @notice Ubiquity pool library * @notice Allows users to: * - deposit collateral in exchange for Ubiquity Dollars * - redeem Ubiquity Dollars in exchange for the earlier provided collateral */ library LibUbiquityPool { using SafeERC20 for IERC20; using SafeMath for uint256; /// @notice Storage slot used to store data for this library bytes32 constant UBIQUITY_POOL_STORAGE_POSITION = bytes32( uint256(keccak256("ubiquity.contracts.ubiquity.pool.storage")) - 1 ); /// @notice Struct used as a storage for this library struct UbiquityPoolStorage { //======== // Core //======== // minter address -> is it enabled mapping(address amoMinter => bool isEnabled) isAmoMinterEnabled; //====================== // Collateral related //====================== // available collateral tokens address[] collateralAddresses; // collateral address -> collateral index mapping(address collateralAddress => uint256 collateralIndex) collateralIndex; // collateral index -> chainlink price feed addresses address[] collateralPriceFeedAddresses; // collateral index -> threshold in seconds when chainlink answer should be considered stale uint256[] collateralPriceFeedStalenessThresholds; // collateral index -> collateral price uint256[] collateralPrices; // array collateral symbols string[] collateralSymbols; // collateral address -> is it enabled mapping(address collateralAddress => bool isEnabled) isCollateralEnabled; // Number of decimals needed to get to E18. collateral index -> missing decimals uint256[] missingDecimals; // Total across all collaterals. Accounts for missing_decimals uint256[] poolCeilings; //==================== // Redeem related //==================== // user -> block number (collateral independent) mapping(address => uint256) lastRedeemedBlock; // 1010000 = 1.01 uint256 mintPriceThreshold; // 990000 = 0.99 uint256 redeemPriceThreshold; // address -> collateral index -> balance mapping(address user => mapping(uint256 collateralIndex => uint256 amount)) redeemCollateralBalances; // number of blocks to wait before being able to collectRedemption() uint256 redemptionDelayBlocks; // collateral index -> balance uint256[] unclaimedPoolCollateral; //================ // Fees related //================ // minting fee of a particular collateral index, 1_000_000 = 100% uint256[] mintingFee; // redemption fee of a particular collateral index, 1_000_000 = 100% uint256[] redemptionFee; //================= // Pause related //================= // whether borrowing collateral by AMO minters is paused for a particular collateral index bool[] isBorrowPaused; // whether minting is paused for a particular collateral index bool[] isMintPaused; // whether redeeming is paused for a particular collateral index bool[] isRedeemPaused; } /// @notice Struct used for detailed collateral information struct CollateralInformation { uint256 index; string symbol; address collateralAddress; address collateralPriceFeedAddress; uint256 collateralPriceFeedStalenessThreshold; bool isEnabled; uint256 missingDecimals; uint256 price; uint256 poolCeiling; bool isMintPaused; bool isRedeemPaused; bool isBorrowPaused; uint256 mintingFee; uint256 redemptionFee; } /** * @notice Returns struct used as a storage for this library * @return uPoolStorage Struct used as a storage */ function ubiquityPoolStorage() internal pure returns (UbiquityPoolStorage storage uPoolStorage) { bytes32 position = UBIQUITY_POOL_STORAGE_POSITION; assembly { uPoolStorage.slot := position } } //=========== // Events //=========== /// @notice Emitted when new AMO minter is added event AmoMinterAdded(address amoMinterAddress); /// @notice Emitted when AMO minter is removed event AmoMinterRemoved(address amoMinterAddress); /// @notice Emitted on setting a chainlink's collateral price feed params event CollateralPriceFeedSet( uint256 collateralIndex, address priceFeedAddress, uint256 stalenessThreshold ); /// @notice Emitted on setting a collateral price event CollateralPriceSet(uint256 collateralIndex, uint256 newPrice); /// @notice Emitted on enabling/disabling a particular collateral token event CollateralToggled(uint256 collateralIndex, bool newState); /// @notice Emitted when fees are updated event FeesSet( uint256 collateralIndex, uint256 newMintFee, uint256 newRedeemFee ); /// @notice Emitted on toggling pause for mint/redeem/borrow event MintRedeemBorrowToggled(uint256 collateralIndex, uint8 toggleIndex); /// @notice Emitted when new pool ceiling (i.e. max amount of collateral) is set event PoolCeilingSet(uint256 collateralIndex, uint256 newCeiling); /// @notice Emitted when mint and redeem price thresholds are updated (1_000_000 = 1.00) event PriceThresholdsSet( uint256 newMintPriceThreshold, uint256 newRedeemPriceThreshold ); /// @notice Emitted when a new redemption delay in blocks is set event RedemptionDelayBlocksSet(uint256 redemptionDelayBlocks); //===================== // Modifiers //===================== /** * @notice Checks whether collateral token is enabled (i.e. mintable and redeemable) * @param collateralIndex Collateral token index */ modifier collateralEnabled(uint256 collateralIndex) { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); require( poolStorage.isCollateralEnabled[ poolStorage.collateralAddresses[collateralIndex] ], "Collateral disabled" ); _; } /** * @notice Checks whether a caller is the AMO minter address */ modifier onlyAmoMinter() { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); require( poolStorage.isAmoMinterEnabled[msg.sender], "Not an AMO Minter" ); _; } //===================== // Views //===================== /** * @notice Returns all collateral addresses * @return All collateral addresses */ function allCollaterals() internal view returns (address[] memory) { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); return poolStorage.collateralAddresses; } /** * @notice Returns collateral information * @param collateralAddress Address of the collateral token * @return returnData Collateral info */ function collateralInformation( address collateralAddress ) internal view returns (CollateralInformation memory returnData) { // load the storage UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); // validation require( poolStorage.isCollateralEnabled[collateralAddress], "Invalid collateral" ); // get the index uint256 index = poolStorage.collateralIndex[collateralAddress]; returnData = CollateralInformation( index, poolStorage.collateralSymbols[index], collateralAddress, poolStorage.collateralPriceFeedAddresses[index], poolStorage.collateralPriceFeedStalenessThresholds[index], poolStorage.isCollateralEnabled[collateralAddress], poolStorage.missingDecimals[index], poolStorage.collateralPrices[index], poolStorage.poolCeilings[index], poolStorage.isMintPaused[index], poolStorage.isRedeemPaused[index], poolStorage.isBorrowPaused[index], poolStorage.mintingFee[index], poolStorage.redemptionFee[index] ); } /** * @notice Returns USD value of all collateral tokens held in the pool, in E18 * @return balanceTally USD value of all collateral tokens */ function collateralUsdBalance() internal view returns (uint256 balanceTally) { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); uint256 collateralTokensCount = poolStorage.collateralAddresses.length; balanceTally = 0; for (uint256 i = 0; i < collateralTokensCount; i++) { balanceTally += freeCollateralBalance(i) .mul(10 ** poolStorage.missingDecimals[i]) .mul(poolStorage.collateralPrices[i]) .div(UBIQUITY_POOL_PRICE_PRECISION); } } /** * @notice Returns free collateral balance (i.e. that can be borrowed by AMO minters) * @param collateralIndex collateral token index * @return Amount of free collateral */ function freeCollateralBalance( uint256 collateralIndex ) internal view returns (uint256) { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); return IERC20(poolStorage.collateralAddresses[collateralIndex]) .balanceOf(address(this)) .sub(poolStorage.unclaimedPoolCollateral[collateralIndex]); } /** * @notice Returns Dollar value in collateral tokens * @param collateralIndex collateral token index * @param dollarAmount Amount of Dollars * @return Value in collateral tokens */ function getDollarInCollateral( uint256 collateralIndex, uint256 dollarAmount ) internal view returns (uint256) { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); return dollarAmount .mul(UBIQUITY_POOL_PRICE_PRECISION) .div(10 ** poolStorage.missingDecimals[collateralIndex]) .div(poolStorage.collateralPrices[collateralIndex]); } /** * @notice Returns Ubiquity Dollar token USD price (1e6 precision) from Curve Metapool (Ubiquity Dollar, Curve Tri-Pool LP) * @return dollarPriceUsd USD price of Ubiquity Dollar */ function getDollarPriceUsd() internal view returns (uint256 dollarPriceUsd) { // get Dollar price from Curve Metapool (18 decimals) uint256 dollarPriceUsdD18 = LibTWAPOracle.getTwapPrice(); // convert to 6 decimals dollarPriceUsd = dollarPriceUsdD18 .mul(UBIQUITY_POOL_PRICE_PRECISION) .div(1e18); } //==================== // Public functions //==================== /** * @notice Mints Dollars in exchange for collateral tokens * @param collateralIndex Collateral token index * @param dollarAmount Amount of dollars to mint * @param dollarOutMin Min amount of dollars to mint (slippage protection) * @param maxCollateralIn Max amount of collateral to send (slippage protection) * @return totalDollarMint Amount of Dollars minted * @return collateralNeeded Amount of collateral sent to the pool */ function mintDollar( uint256 collateralIndex, uint256 dollarAmount, uint256 dollarOutMin, uint256 maxCollateralIn ) internal collateralEnabled(collateralIndex) returns (uint256 totalDollarMint, uint256 collateralNeeded) { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); require( poolStorage.isMintPaused[collateralIndex] == false, "Minting is paused" ); // update Dollar price from Curve's Dollar Metapool LibTWAPOracle.update(); // prevent unnecessary mints require( getDollarPriceUsd() >= poolStorage.mintPriceThreshold, "Dollar price too low" ); // update collateral price updateChainLinkCollateralPrice(collateralIndex); // get amount of collateral for minting Dollars collateralNeeded = getDollarInCollateral(collateralIndex, dollarAmount); // subtract the minting fee totalDollarMint = dollarAmount .mul( UBIQUITY_POOL_PRICE_PRECISION.sub( poolStorage.mintingFee[collateralIndex] ) ) .div(UBIQUITY_POOL_PRICE_PRECISION); // check slippages require((totalDollarMint >= dollarOutMin), "Dollar slippage"); require((collateralNeeded <= maxCollateralIn), "Collateral slippage"); // check the pool ceiling require( freeCollateralBalance(collateralIndex).add(collateralNeeded) <= poolStorage.poolCeilings[collateralIndex], "Pool ceiling" ); // take collateral first IERC20(poolStorage.collateralAddresses[collateralIndex]) .safeTransferFrom(msg.sender, address(this), collateralNeeded); // mint Dollars IERC20Ubiquity ubiquityDollarToken = IERC20Ubiquity( LibAppStorage.appStorage().dollarTokenAddress ); ubiquityDollarToken.mint(msg.sender, totalDollarMint); } /** * @notice Burns redeemable Ubiquity Dollars and sends back 1 USD of collateral token for every 1 Ubiquity Dollar burned * @dev Redeem process is split in two steps: * @dev 1. `redeemDollar()` * @dev 2. `collectRedemption()` * @dev This is done in order to prevent someone using a flash loan of a collateral token to mint, redeem, and collect in a single transaction/block * @param collateralIndex Collateral token index being withdrawn * @param dollarAmount Amount of Ubiquity Dollars being burned * @param collateralOutMin Minimum amount of collateral tokens that'll be withdrawn, used to set acceptable slippage * @return collateralOut Amount of collateral tokens ready for redemption */ function redeemDollar( uint256 collateralIndex, uint256 dollarAmount, uint256 collateralOutMin ) internal collateralEnabled(collateralIndex) returns (uint256 collateralOut) { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); require( poolStorage.isRedeemPaused[collateralIndex] == false, "Redeeming is paused" ); // update Dollar price from Curve's Dollar Metapool LibTWAPOracle.update(); // prevent unnecessary redemptions that could adversely affect the Dollar price require( getDollarPriceUsd() <= poolStorage.redeemPriceThreshold, "Dollar price too high" ); uint256 dollarAfterFee = dollarAmount .mul( UBIQUITY_POOL_PRICE_PRECISION.sub( poolStorage.redemptionFee[collateralIndex] ) ) .div(UBIQUITY_POOL_PRICE_PRECISION); // update collateral price updateChainLinkCollateralPrice(collateralIndex); // get collateral output for incoming Dollars collateralOut = getDollarInCollateral(collateralIndex, dollarAfterFee); // checks require( collateralOut <= (IERC20(poolStorage.collateralAddresses[collateralIndex])) .balanceOf(address(this)) .sub(poolStorage.unclaimedPoolCollateral[collateralIndex]), "Insufficient pool collateral" ); require(collateralOut >= collateralOutMin, "Collateral slippage"); // account for the redeem delay poolStorage.redeemCollateralBalances[msg.sender][ collateralIndex ] = poolStorage .redeemCollateralBalances[msg.sender][collateralIndex].add( collateralOut ); poolStorage.unclaimedPoolCollateral[collateralIndex] = poolStorage .unclaimedPoolCollateral[collateralIndex] .add(collateralOut); poolStorage.lastRedeemedBlock[msg.sender] = block.number; // burn Dollars IERC20Ubiquity ubiquityDollarToken = IERC20Ubiquity( LibAppStorage.appStorage().dollarTokenAddress ); ubiquityDollarToken.burnFrom(msg.sender, dollarAmount); } /** * @notice Used to collect collateral tokens after redeeming/burning Ubiquity Dollars * @dev Redeem process is split in two steps: * @dev 1. `redeemDollar()` * @dev 2. `collectRedemption()` * @dev This is done in order to prevent someone using a flash loan of a collateral token to mint, redeem, and collect in a single transaction/block * @param collateralIndex Collateral token index being collected * @return collateralAmount Amount of collateral tokens redeemed */ function collectRedemption( uint256 collateralIndex ) internal returns (uint256 collateralAmount) { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); require( poolStorage.isRedeemPaused[collateralIndex] == false, "Redeeming is paused" ); require( ( poolStorage.lastRedeemedBlock[msg.sender].add( poolStorage.redemptionDelayBlocks ) ) <= block.number, "Too soon to collect redemption" ); bool sendCollateral = false; if ( poolStorage.redeemCollateralBalances[msg.sender][collateralIndex] > 0 ) { collateralAmount = poolStorage.redeemCollateralBalances[msg.sender][ collateralIndex ]; poolStorage.redeemCollateralBalances[msg.sender][ collateralIndex ] = 0; poolStorage.unclaimedPoolCollateral[collateralIndex] = poolStorage .unclaimedPoolCollateral[collateralIndex] .sub(collateralAmount); sendCollateral = true; } // send out the tokens if (sendCollateral) { IERC20(poolStorage.collateralAddresses[collateralIndex]) .safeTransfer(msg.sender, collateralAmount); } } /** * @notice Updates collateral token price in USD from ChainLink price feed * @param collateralIndex Collateral token index */ function updateChainLinkCollateralPrice(uint256 collateralIndex) internal { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); AggregatorV3Interface priceFeed = AggregatorV3Interface( poolStorage.collateralPriceFeedAddresses[collateralIndex] ); // fetch latest price ( , // roundId int256 answer, // startedAt , uint256 updatedAt, ) = // answeredInRound priceFeed.latestRoundData(); // fetch number of decimals in chainlink feed uint256 priceFeedDecimals = priceFeed.decimals(); // validation require(answer > 0, "Invalid price"); require( block.timestamp - updatedAt < poolStorage.collateralPriceFeedStalenessThresholds[ collateralIndex ], "Stale data" ); // convert chainlink price to 6 decimals uint256 price = uint256(answer).mul(UBIQUITY_POOL_PRICE_PRECISION).div( 10 ** priceFeedDecimals ); poolStorage.collateralPrices[collateralIndex] = price; emit CollateralPriceSet(collateralIndex, price); } //========================= // AMO minters functions //========================= /** * @notice Allows AMO minters to borrow collateral to make yield in external * protocols like Compound, Curve, erc... * @dev Bypasses the gassy mint->redeem cycle for AMOs to borrow collateral * @param collateralAmount Amount of collateral to borrow */ function amoMinterBorrow(uint256 collateralAmount) internal onlyAmoMinter { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); // checks the collateral index of the minter as an additional safety check uint256 minterCollateralIndex = IDollarAmoMinter(msg.sender) .collateralIndex(); // checks to see if borrowing is paused require( poolStorage.isBorrowPaused[minterCollateralIndex] == false, "Borrowing is paused" ); // ensure collateral is enabled require( poolStorage.isCollateralEnabled[ poolStorage.collateralAddresses[minterCollateralIndex] ], "Collateral disabled" ); // transfer IERC20(poolStorage.collateralAddresses[minterCollateralIndex]) .safeTransfer(msg.sender, collateralAmount); } //======================== // Restricted functions //======================== /** * @notice Adds a new AMO minter * @param amoMinterAddress AMO minter address */ function addAmoMinter(address amoMinterAddress) internal { require(amoMinterAddress != address(0), "Zero address detected"); // make sure the AMO Minter has collateralDollarBalance() uint256 collatValE18 = IDollarAmoMinter(amoMinterAddress) .collateralDollarBalance(); require(collatValE18 >= 0, "Invalid AMO"); UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); poolStorage.isAmoMinterEnabled[amoMinterAddress] = true; emit AmoMinterAdded(amoMinterAddress); } /** * @notice Adds a new collateral token * @param collateralAddress Collateral token address * @param chainLinkPriceFeedAddress Chainlink's price feed address * @param poolCeiling Max amount of available tokens for collateral */ function addCollateralToken( address collateralAddress, address chainLinkPriceFeedAddress, uint256 poolCeiling ) internal { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); uint256 collateralIndex = poolStorage.collateralAddresses.length; // add collateral address to all collaterals poolStorage.collateralAddresses.push(collateralAddress); // for fast collateral address -> collateral idx lookups later poolStorage.collateralIndex[collateralAddress] = collateralIndex; // set collateral initially to disabled poolStorage.isCollateralEnabled[collateralAddress] = false; // add in the missing decimals poolStorage.missingDecimals.push( uint256(18).sub(ERC20(collateralAddress).decimals()) ); // add in the collateral symbols poolStorage.collateralSymbols.push(ERC20(collateralAddress).symbol()); // initialize unclaimed pool collateral poolStorage.unclaimedPoolCollateral.push(0); // initialize paused prices to 1 as a backup poolStorage.collateralPrices.push(UBIQUITY_POOL_PRICE_PRECISION); // set fees to 0 by default poolStorage.mintingFee.push(0); poolStorage.redemptionFee.push(0); // handle the pauses poolStorage.isMintPaused.push(false); poolStorage.isRedeemPaused.push(false); poolStorage.isBorrowPaused.push(false); // set pool ceiling poolStorage.poolCeilings.push(poolCeiling); // set price feed address poolStorage.collateralPriceFeedAddresses.push( chainLinkPriceFeedAddress ); // set price feed staleness threshold in seconds poolStorage.collateralPriceFeedStalenessThresholds.push(1 days); } /** * @notice Removes AMO minter * @param amoMinterAddress AMO minter address to remove */ function removeAmoMinter(address amoMinterAddress) internal { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); poolStorage.isAmoMinterEnabled[amoMinterAddress] = false; emit AmoMinterRemoved(amoMinterAddress); } /** * @notice Sets collateral ChainLink price feed params * @param collateralAddress Collateral token address * @param chainLinkPriceFeedAddress ChainLink price feed address * @param stalenessThreshold Threshold in seconds when chainlink answer should be considered stale */ function setCollateralChainLinkPriceFeed( address collateralAddress, address chainLinkPriceFeedAddress, uint256 stalenessThreshold ) internal { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); uint256 collateralIndex = poolStorage.collateralIndex[ collateralAddress ]; // set price feed address poolStorage.collateralPriceFeedAddresses[ collateralIndex ] = chainLinkPriceFeedAddress; // set staleness threshold in seconds when chainlink answer should be considered stale poolStorage.collateralPriceFeedStalenessThresholds[ collateralIndex ] = stalenessThreshold; emit CollateralPriceFeedSet( collateralIndex, chainLinkPriceFeedAddress, stalenessThreshold ); } /** * @notice Sets mint and redeem fees, 1_000_000 = 100% * @param collateralIndex Collateral token index * @param newMintFee New mint fee * @param newRedeemFee New redeem fee */ function setFees( uint256 collateralIndex, uint256 newMintFee, uint256 newRedeemFee ) internal { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); poolStorage.mintingFee[collateralIndex] = newMintFee; poolStorage.redemptionFee[collateralIndex] = newRedeemFee; emit FeesSet(collateralIndex, newMintFee, newRedeemFee); } /** * @notice Sets max amount of collateral for a particular collateral token * @param collateralIndex Collateral token index * @param newCeiling Max amount of collateral */ function setPoolCeiling( uint256 collateralIndex, uint256 newCeiling ) internal { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); poolStorage.poolCeilings[collateralIndex] = newCeiling; emit PoolCeilingSet(collateralIndex, newCeiling); } /** * @notice Sets mint and redeem price thresholds, 1_000_000 = 1.00 * @param newMintPriceThreshold New mint price threshold * @param newRedeemPriceThreshold New redeem price threshold */ function setPriceThresholds( uint256 newMintPriceThreshold, uint256 newRedeemPriceThreshold ) internal { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); poolStorage.mintPriceThreshold = newMintPriceThreshold; poolStorage.redeemPriceThreshold = newRedeemPriceThreshold; emit PriceThresholdsSet(newMintPriceThreshold, newRedeemPriceThreshold); } /** * @notice Sets a redemption delay in blocks * @dev Redeeming is split in 2 actions: * @dev 1. `redeemDollar()` * @dev 2. `collectRedemption()` * @dev `newRedemptionDelayBlocks` sets number of blocks that should be mined after which user can call `collectRedemption()` * @param newRedemptionDelayBlocks Redemption delay in blocks */ function setRedemptionDelayBlocks( uint256 newRedemptionDelayBlocks ) internal { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); poolStorage.redemptionDelayBlocks = newRedemptionDelayBlocks; emit RedemptionDelayBlocksSet(newRedemptionDelayBlocks); } /** * @notice Toggles (i.e. enables/disables) a particular collateral token * @param collateralIndex Collateral token index */ function toggleCollateral(uint256 collateralIndex) internal { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); address collateralAddress = poolStorage.collateralAddresses[ collateralIndex ]; poolStorage.isCollateralEnabled[collateralAddress] = !poolStorage .isCollateralEnabled[collateralAddress]; emit CollateralToggled( collateralIndex, poolStorage.isCollateralEnabled[collateralAddress] ); } /** * @notice Toggles pause for mint/redeem/borrow methods * @param collateralIndex Collateral token index * @param toggleIndex Method index. 0 - toggle mint pause, 1 - toggle redeem pause, 2 - toggle borrow by AMO pause */ function toggleMintRedeemBorrow( uint256 collateralIndex, uint8 toggleIndex ) internal { UbiquityPoolStorage storage poolStorage = ubiquityPoolStorage(); if (toggleIndex == 0) poolStorage.isMintPaused[collateralIndex] = !poolStorage .isMintPaused[collateralIndex]; else if (toggleIndex == 1) poolStorage.isRedeemPaused[collateralIndex] = !poolStorage .isRedeemPaused[collateralIndex]; else if (toggleIndex == 2) poolStorage.isBorrowPaused[collateralIndex] = !poolStorage .isBorrowPaused[collateralIndex]; emit MintRedeemBorrowToggled(collateralIndex, toggleIndex); } } confrim the issues in the UbiquityPoolFacet.sol contract // SPDX-License-Identifier: GPL-2.0-or-later pragma solidity 0.8.19; import {IUbiquityPool} from "../interfaces/IUbiquityPool.sol"; import {Modifiers} from "../libraries/LibAppStorage.sol"; import {LibUbiquityPool} from "../libraries/LibUbiquityPool.sol"; /** * @notice Ubiquity pool facet * @notice Allows users to: * - deposit collateral in exchange for Ubiquity Dollars * - redeem Ubiquity Dollars in exchange for the earlier provided collateral */ contract UbiquityPoolFacet is IUbiquityPool, Modifiers { //===================== // Views //===================== /// @inheritdoc IUbiquityPool function allCollaterals() external view returns (address[] memory) { return LibUbiquityPool.allCollaterals(); } /// @inheritdoc IUbiquityPool function collateralInformation( address collateralAddress ) external view returns (LibUbiquityPool.CollateralInformation memory returnData) { return LibUbiquityPool.collateralInformation(collateralAddress); } /// @inheritdoc IUbiquityPool function collateralUsdBalance() external view returns (uint256 balanceTally) { return LibUbiquityPool.collateralUsdBalance(); } /// @inheritdoc IUbiquityPool function freeCollateralBalance( uint256 collateralIndex ) external view returns (uint256) { return LibUbiquityPool.freeCollateralBalance(collateralIndex); } /// @inheritdoc IUbiquityPool function getDollarInCollateral( uint256 collateralIndex, uint256 dollarAmount ) external view returns (uint256) { return LibUbiquityPool.getDollarInCollateral( collateralIndex, dollarAmount ); } /// @inheritdoc IUbiquityPool function getDollarPriceUsd() external view returns (uint256 dollarPriceUsd) { return LibUbiquityPool.getDollarPriceUsd(); } //==================== // Public functions //==================== /// @inheritdoc IUbiquityPool function mintDollar( uint256 collateralIndex, uint256 dollarAmount, uint256 dollarOutMin, uint256 maxCollateralIn ) external returns (uint256 totalDollarMint, uint256 collateralNeeded) { return LibUbiquityPool.mintDollar( collateralIndex, dollarAmount, dollarOutMin, maxCollateralIn ); } /// @inheritdoc IUbiquityPool function redeemDollar( uint256 collateralIndex, uint256 dollarAmount, uint256 collateralOutMin ) external returns (uint256 collateralOut) { return LibUbiquityPool.redeemDollar( collateralIndex, dollarAmount, collateralOutMin ); } /// @inheritdoc IUbiquityPool function collectRedemption( uint256 collateralIndex ) external returns (uint256 collateralAmount) { return LibUbiquityPool.collectRedemption(collateralIndex); } /// @inheritdoc IUbiquityPool function updateChainLinkCollateralPrice(uint256 collateralIndex) external { LibUbiquityPool.updateChainLinkCollateralPrice(collateralIndex); } //========================= // AMO minters functions //========================= /// @inheritdoc IUbiquityPool function amoMinterBorrow(uint256 collateralAmount) external { LibUbiquityPool.amoMinterBorrow(collateralAmount); } //======================== // Restricted functions //======================== /// @inheritdoc IUbiquityPool function addAmoMinter(address amoMinterAddress) external onlyAdmin { LibUbiquityPool.addAmoMinter(amoMinterAddress); } /// @inheritdoc IUbiquityPool function addCollateralToken( address collateralAddress, address chainLinkPriceFeedAddress, uint256 poolCeiling ) external onlyAdmin { LibUbiquityPool.addCollateralToken( collateralAddress, chainLinkPriceFeedAddress, poolCeiling ); } /// @inheritdoc IUbiquityPool function removeAmoMinter(address amoMinterAddress) external onlyAdmin { LibUbiquityPool.removeAmoMinter(amoMinterAddress); } /// @inheritdoc IUbiquityPool function setCollateralChainLinkPriceFeed( address collateralAddress, address chainLinkPriceFeedAddress, uint256 stalenessThreshold ) external onlyAdmin { LibUbiquityPool.setCollateralChainLinkPriceFeed( collateralAddress, chainLinkPriceFeedAddress, stalenessThreshold ); } /// @inheritdoc IUbiquityPool function setFees( uint256 collateralIndex, uint256 newMintFee, uint256 newRedeemFee ) external onlyAdmin { LibUbiquityPool.setFees(collateralIndex, newMintFee, newRedeemFee); } /// @inheritdoc IUbiquityPool function setPoolCeiling( uint256 collateralIndex, uint256 newCeiling ) external onlyAdmin { LibUbiquityPool.setPoolCeiling(collateralIndex, newCeiling); } /// @inheritdoc IUbiquityPool function setPriceThresholds( uint256 newMintPriceThreshold, uint256 newRedeemPriceThreshold ) external onlyAdmin { LibUbiquityPool.setPriceThresholds( newMintPriceThreshold, newRedeemPriceThreshold ); } /// @inheritdoc IUbiquityPool function setRedemptionDelayBlocks( uint256 newRedemptionDelayBlocks ) external onlyAdmin { LibUbiquityPool.setRedemptionDelayBlocks(newRedemptionDelayBlocks); } /// @inheritdoc IUbiquityPool function toggleCollateral(uint256 collateralIndex) external onlyAdmin { LibUbiquityPool.toggleCollateral(collateralIndex); } /// @inheritdoc IUbiquityPool function toggleMintRedeemBorrow( uint256 collateralIndex, uint8 toggleIndex ) external onlyAdmin { LibUbiquityPool.toggleMintRedeemBorrow(collateralIndex, toggleIndex); } } Based on the contract code snippet provided, it is not possible to give direct evidence of vulnerabilities or to pinpoint the precise locations of potential issues within the specific contract. This is because the crucial details regarding how the contract interacts with Chainlink oracles or how state changes are implemented are abstracted away in the LibUbiquityPool library, whose source code is not included in the snippet. Additionally, reentrancy guards, admin key security mechanisms, and certain oracle manipulation protections are often implemented in parts of the code that are not presented. Here’s what we would look for in the complete contract code and associated libraries to identify and provide evidence of the vulnerabilities you’re concerned about: # Issue 1: Oracle Manipulation (High) Vulnerability Evidence: Look for functions that use Chainlink oracle price feeds. Ideally, these should use the latest Chainlink best practices including aggregation of multiple oracle reports to form a reliable price consensus. Vulnerable Code Indicator: function updateChainLinkCollateralPrice(uint256 collateralIndex) external { // This function probably fetches the latest price for a collateral type. // If it’s not using a decentralized oracle network or doesn’t protect against stale or manipulated prices, // the oracle could potentially be manipulated. } To evaluate if this is a valid issue: - Review the updateChainLinkCollateralPrice function implementation in the library to determine how many price feed nodes it relies on and how fresh and reliable the data is. - Check for any additional protection against manipulated price feeds such as circuit breakers or multiple confirmation requirements. # Issue 2: Smart Contract Exploits (Critical) Vulnerability Evidence: Check for complex functions that interact with untrusted contracts or tokens, lack of input validation, and improper state change mechanisms. Vulnerable Code Indicator: For example, mismanaged state changes in mintDollar could potentially be exploited, but without the library code, this is speculative: function mintDollar(uint256 collateralIndex, uint256 dollarAmount, uint256 dollarOutMin, uint256 maxCollateralIn) external returns (uint256, uint256) { // Logic here would need to ensure proper validation, state management and security checks. } To evaluate if this is a valid issue: - Look through the implementations of mintDollar and redeemDollar in the LibUbiquityPool library for any complex interactions or code patterns that could lead to exploits. - Pay close attention to state changes, inter-contract calls, and input validations. # Issue 3: Admin Key Compromise (Critical) Vulnerability Evidence: Investigate how the contract admin accounts are managed and whether there are any controls to prevent single points of failure. Vulnerable Code Indicator: The presence of the onlyAdmin modifier alone suggests that the integrity of the system heavily relies on the security of the admin keys: function addCollateralToken(address collateralAddress, address chainLinkPriceFeedAddress, uint256 poolCeiling) external onlyAdmin { // If the admin account is compromised, collateral tokens can be manipulated. } To evaluate if this is a valid issue: - Examine the admin account management: multi-sig wallets, hardware wallets usage, transparency in governance processes, and the accessibility of sensitive operations. - Look for timelocks or other mechanisms to delay admin actions, allowing for community oversight and reaction in case of unauthorized changes. # Issue 4: Reentrancy Attack (High) Vulnerability Evidence: Search for external calls or token transfers that take place before state changes or without proper locking mechanisms in place. Vulnerable Code Indicator: As an example, if redeemDollar interacts with external contracts or tokens and does not employ reentrancy protections, it could be at risk: function redeemDollar(uint256 collateralIndex, uint256 dollarAmount, uint256 collateralOutMin) external returns (uint256) { // This function might expose the contract to reentrancy attacks if not properly protected. // Thorough review of the implementation in the library is necessary to evaluate this risk. } To evaluate if this is a valid issue: - Analyze the redeemDollar, mintDollar, and collectRedemption implementations for any potential points of reentrancy, such as external calls made before state updates. - Check if there are reentrancy guards (e.g., non-reentrant modifiers) in place to prevent this type of exploit. In summary, without access to the full contract code and the LibUbiquityPool library, it is not possible to unequivocally provide evidence or pinpoint the vulnerable lines for these issues. To confirm the nature and extent of these concerns, a comprehensive audit of the full contract code and deployed implementation is needed, complemented by measures such as establishing rigorous development practices, employing reentrancy guards and admin controls, and adhering to security best practices for oracle interactions.

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question:Create a scam-baiting response to the most recent email, to keep the scammer in a false sense of security by posing as a potential victim. Use the prior emails as a point of reference. Email #1, from Anita: Dearest Beloved Greetings to you. First of all let me introduce myself to you. I am Sister Anita Adams Johnson from Ivory Coast, I am married to late Chief Adams Johnson of blessed memory. My late husband was a produce merchant and contractor to the government on export of cocoa. We were married for eleven Years without a child, since his death I too have been battling with both cancer and fibroid problems Recently,I am in the hospital due to my critical health condition and my doctor told me that I would not last for few months and having known my condition I Decided to donate my late husband's funds(USD8.7Million) deposited with a leading Bank here to you so that you will Utilize this money for yourself and also for the Orphanages, widows and motherless organizations. I will also issue an Order of authority to the bank, authorizing them that the said sum has been willed to you and a copy of such authorization will be forwarded to you. Any delay in your reply will give room in sourcing for another person / organization for this same purpose. You may ask why I took this decision to transfer the fund to you??Why can't I withdraw from the fund to take care of my health??? Until I hear from you today unfailingly,I will give you detailed information about the fund and get you cleared of these rhetorical questions. Yours sincerely, Sister <PRESIDIO_ANONYMIZED_PERSON>. Email #2, from Cameron McCaffrey (me): Dearest Sister Anita Johnson, It is with a heart full of warmth and gratitude that I receive your email. First, let me extend my deepest sympathies for the trials and tribulations you have faced. Your strength and resolve in the face of such adversity is truly inspiring. It is not often that one encounters a soul so generous and thoughtful, and I am deeply moved by your intention to support charitable causes. The thought that you have chosen to entrust me with your late husband’s legacy is an honor I cannot put into mere words. I want to assure you that your message has not landed on deafened ears nor a closed heart. I am prepared to act quickly and with the utmost discretion to ensure your wishes are fulfilled. However, before we proceed, I believe it is wise to take every step with careful consideration. With respect to your current plight, I feel it my duty to contribute to your last moments in any way that I can. I urge you to share as many details as necessary about the fund and the process going forward. As you have mentioned an order of authority and some potentially confusing questions, please provide clarity so that I may understand how best to assist in this endeavor. Your swift response will enable us to establish a secure line of communication, through which we can carry out your wishes efficiently and confidentially. Please inform me of any specific requirements you have in mind for the charities and the steps that I need to take to honor your expectations perfectly. Let us not delay this noble cause, for as we know, time waits for none and the need for goodwill is ever-present. I await your detailed instructions with earnest anticipation. Yours faithfully, Cameron McCaffrey [email protected] Email #3, from Anita: Dear sir May the peace of our LORD God be with you and your family. I am glad to receive your mail. You have known about my current health situation. I have committed myself into the hands of Almighty God, ready to face the ultimate end, as I believe that dying in it is gain. I met you through your country email directory in my desperate search for a caring God-fearing person who will not embezzle the fund. Keep in mind that I am using you as the middle person to reach out to the poor and underprivileged in society, you are God's recipient for this Divine Assignment, by your own suggestion, worrying about funds is impossible to live with than finances the government that's why I contacted you because those funds are not for the government. You see the reason why I have to look for a good person because out of his people who bring food, I know someone who helps the poor. I see my condition and I don't know what will happen. to me below, that's why I have to fine someone who can be honest to receive the funds, I may not reply to you every day, so if I did not reply every day, it is due to my current health. What you need to do now is send me your full address and bank details for me to send to the bank for follow-up as I won't be able to race due to the things involved. My bank will always update me with the status of things regarding the transfer position of the fund. My humble request to you is to make sure you respect my last wish and use the money for charity and build church so that my soul may rest in peace when I die. I will appreciate it very much if you can build a church as a base with my name and my husband's name to remember us for a lifetime. then after you receive the total funds into your account you have 30 percent for your efforts then use the remain balance and do what i direct you also remember to send me 50 thousand dollars to hospital for my drugs, I look forward to receiving your bank details and phone number to send to the bank for the transfer. Please this account information that you will send me must have the following THE NAME OF YOUR BANK AND ACCOUNT NUMBER THE ADDRESS OF YOUR BANK AND TELEPHONE AND FAX NUMBERS YOUR PRIVATE TELEPHONE/FAX NUMBERS YOUR CONTACT ADDRESS. YOUR IDENTIFICATION CARD I will greatly appreciate if you keep alive the hope and dream of reaching out to the underprivileged in society. You should not get carried away when you receive the money in your account. Thank you for such wonderful comfort as we are over comers through Christ in us. Doctors can predict, but God has the last word. I live for God and depend on Him. May the peace of our LORD remain in you and in your family. Sincerely, Mrs. <PRESIDIO_ANONYMIZED_PERSON> Email #4, from Cameron: Dearest Sister Anita Johnson, The peace and blessings of the Almighty be upon you too. I hope this message finds you in moments of comfort despite your tribulations. I have read your latest correspondence with a heart weighed down by the solemnity of your condition, yet uplifted by the nobility of your cause. Your faith and trust in me as a steward for this divine assignment humbles me greatly. Rest assured that I am fully committed to respecting your last wishes and handling the fund with the integrity and goodwill you so earnestly seek. Your instructions to aid the underprivileged and to build a church in your and your late husband’s honor are clear and I consider it my personal mission to see them through to fruition. My thoughts and prayers continue to be with you, Sister Anita. While I understand that you cannot be in constant communication due to your health, I will endeavor to make all preparations so that once you are able, we can facilitate the transfer swiftly and securely. Before I provide my banking details, for the purpose of ensuring the utmost level of security and to prevent any possible missteps in this solemn process, I will consult with my financial advisor on how to best manage and protect such a significant transaction. This brief period will also provide me the necessary time to confirm the necessary legal and charitable arrangements for the receipt and proper allocation of the fund. I understand the urgency and the need for discretion and assure you that no effort will be spared on my end to make this transition as smooth as possible. As for the church, I will start scouting for suitable locations and discuss with architects who could bring your vision to life, to create a place of worship where your legacy will be enshrined. Regarding the 50,000 you wish for me to send for your medication, I am currently assessing how I might facilitate such an immediate assistance, comprehending that your wellbeing at this time is of paramount importance. Please bear with me for a few more days as I finalize the necessary counsel and safeguards. You have placed your trust in me, Sister Anita, and I do not take this responsibility lightly. "The Lord bless thee, and keep thee: The Lord make his face shine upon thee, and be gracious unto thee: The Lord lift up his countenance upon thee, and give thee peace.” (Numbers 6:24-26) God bless you and keep you in His care. Yours faithfully and in service to His will, Cameron McCaffrey [email protected] Email #5, from Anita: Dear sir May the peace of our LORD God be with you and your family. Thank you very much and sorry for my late responding is due to my sick conditions do not allowed me to check my email address in time is now i am able to check on you, Well i thank God for everything he do i will not beam anybody concerning what i am facing today if it is will of God know body will said know i have handle my life into the hand of our lord God who made it possible me and you still alive today so may all the glory go to him in Jesus Christ we prayer Amen, therefore, let me address you well concerning your questions you mention here about the things i told you to use the fund do when you receive the funds into your bank account, No.. 1 I want you to build a church in my name and my late husband name which the name you will put on the church when you finished build the church. you name the church holy Jesus Christ church of God build by Mrs. Anita Johnson and the place you should build the church it will be in your home village that is what my spirit told me to direct you to build the church in your home town, No ..2 concerning the 30 percent i told you as soon as you receive the funds into your bank account you should take the your percentage first because i know such transitions of such huge amount will cost you money due to change of ownership from ministry of our country that is the reason why i give you 30 percent from the total sum of 8.7 millions dollars, No..3 go to your village and build a food company in your home town also look for those who do not have job find those kind of people and give them job as soon as you do so God will bless you and whenever i die i will rest in peace, No...4 if you have personal family which you have a wife and children give your wife 5 percent from the total amount of 8.7 millions dollars if your father is alive give him 1 percent of the total sum of 8.7 millions dollars also if your mother also alive kindly give her 2 percent of total sum of 8.7 millions dollars also tell them who give them the cash so that both of them will continue prayer for me, No..5 use your personal bank account and receive the funds do not use your company bank account to receive the funds . by 10 plot of land and use it and build the church in your village also by 6 plot of land and use it to build the company of you chose from your own heart so that those who do not have job in your village could have a job as soon as you finished build the company and after you build the company write my name and my late husband names to the company so that those who is working there will also remember me and my husband in life time to come ahead, No..6 i want you to send me 50 thousand dollars after you receive the sum of 8.7 millions into your bank account so that it could enable me to by my drugs and food at hospital as i am talking to you right now only money that remain in my hand now is only one thousand dollar which by Friday this weekend the money will at my hand will finished, This the reason why i needed you urgently to forward me your bank details so that it could enable me to direct your fully bank account information's to bank manager who is in-charger at bank of Africa so i am hopeful to receive your full bank account information's in your next message, Therefore, i will stop written here due to my eyes pains me a lot when i look so much to computer, Thanks once again also may God always bless you and protect you and your family in Jesus Christ name above, From your sister in pains Mrs. Anita Adams Johnson Email #6, from Cameron: Dearest Sister Anita Johnson, My continued prayers are for your comfort and solace as you journey through these challenging moments. Your unwavering faith during such a trying period is a testament to the strength within you, and it remains a beacon of hope and inspiration for us all. Reading your latest message resonated deep within my soul and fortified my commitment to your cause. I am touched by the tasks you have entrusted me with and I want to reassure you that I have started putting plans in place, ensuring that your wishes will be fulfilled with the dedication and sincerity they deserve. Your guidance regarding the allocation of funds is both clear and deeply meaningful. To honor your wishes, I am in the process of consulting with advisors and experts to ensure that once the funds are received, they are managed most effectively for charitable endeavors and in accordance with your detailed instructions. Sister Anita, as per your directive, I am making arrangements to secure land in my home village for the establishment of the church and the food company, which will undoubtedly serve as pillars of compassion and opportunities—monuments of your and your late husband’s generosity. Aware of the sensitivity and significance of this transaction, I must emphasize the importance of diligence and security. This approach is necessary to avoid any pitfalls that could delay or undermine our goals. To this end, I shall be obtaining the recommended banking details and necessary documents posthaste, but with due diligence to safeguard your interest and to uphold the integrity of the process. I will ensure that my personal banking information, when shared, is done so through the most secure channels. Understandably, your need for the 50,000 for medical treatment is urgent. I am exploring all possible solutions to provide this assistance promptly and effectively as soon as the transfer is initiated and completed. Please take heart, Sister Anita. Your vision of supporting the less fortunate and creating sources of hope and charity will be my mission. Your message will carry on through these acts of kindness, and your memory will be praised endlessly. Once again, I extend my deepest empathy for your suffering. May you find moments of peace amidst the pain, and may your spirit be comforted knowing that the legacy you wish to leave behind will indeed flourish. Until I am able to furnish the sensitive details required for the bank transfer, I will continue with the necessary preparations. Trusting in our united purpose, I shall keep you updated on every step taken and every progress made. “Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven.” - Matthew 5:16 God bless and keep you, Sister Anita, and may He grant you comfort and peace. Yours faithfully and in service, Cameron McCaffrey [email protected] Email #7, from Anita: Dear Sir Thank you very much may spirit of God always lead you and your family in Jesus Christ name above Amen, you have brought my spirit back in land of leaving may you leave long may sickness know visit your home, Therefore, i am waiting the cash control number as you promise otherwise is urgent because noting is remained no food no drugs, please sir kindly send me the money tomorrow morning so that it will lead my doctor to get my drugs down tomorrow otherwise all my body's pains me a lot i will stop here for now, Thank you once again hopefully to hear from you tomorrow morning, From your sister in pains Mrs. Anita Adams Johnson Email #8, from Cameron: Dear Sister <PRESIDIO_ANONYMIZED_PERSON>, I am deeply sorry for the delay in providing you with the Western Union control number. I understand the urgency of your situation and the importance of getting the funds to you as soon as possible. Rest assured, I have initiated the transfer and will most certainly send you the control number tomorrow morning. My sincere apologies for any inconvenience caused by the delay. Your wellbeing remains my top priority, and I am committed to ensuring that you receive the funds promptly. Please take good care of yourself! Warm regards, Cameron McCaffrey [email protected] Email #9, from Anita: Dear Sir Brother Cameron i am writing you this latter with broke heart could you believe your sister she has never eat or take any drugs due to lack of know cash at my hand to control her needs in hospital, as i am talking to you madam Anita is owning hospital director 15 thousand dollars no need to hiding such issue i must open up what is going on over your sister issues, i am her Nurse i know what i am going true madam Anita case since morning Anita all her body is hot, she cant talk please sir if you are ready to help madam Anita kindly do faster and send the money you promise her because all Anita hope is in you , Thanks, hop Fuling to hear from. Soon From your lovely sister Anita Adams Johnson Email #10, from Cameron: Dear Sister Anita and the dedicated Nurse, It brings me tremendous anguish to read of the current ordeal you are facing due to the unfortunate circumstances of your health and financial situation. My heart weeps for you, Sister Anita, and I feel a deep sense of kinship and responsibility towards aiding your causes – both for your immediate medical needs and the charitable mission you have entrusted to me. I want to assure you, my dear sister, that I am entirely committed to sending the 300 you have requested via Western Union. Due to some unforeseen banking protocols which require my attention to ensure the safety and security of the transaction, there has been a slight delay. However, I am dealing with them with the highest priority to make sure that the transfer is completed without further postponement. Understanding the gravity of your current state, I implore you to hold onto hope as I am diligently working on fulfilling the promises I have made. Your nurse has been nothing short of an angel, and I express my deepest gratitude for the care and support being provided in my absence. I will notify you with the Western Union control number the moment the transfer has been finalized. In the meantime, please let the hospital director know that funds are inbound to alleviate the debts that have accumulated. You remain constantly in my prayers, and I fervently ask that God provides strength and healing to sustain you through this dire time. Sister Anita, you shall not fight this battle alone, for we are united through faith and the bond of compassion that has been established between us. I will be in further contact shortly with updates on the financial assistance and the progression of plans for the larger funds transfer. With deepest concern and unwavering commitment, Cameron McCaffrey [email protected] Email #11, from Anita: Dear Sir Good Day how are you doing today, i just manage to check on you today been 27 of Xmas which i don't even know 25th has already pass oh my God sickness is not good, look out me i am dying seriously Cameron, Dear Cameron could you believe that i don't have any money in my hand to get my drugs down at hospital in clouding know food again to eat Cameron please send me 300 dollars with this name above under, First Name. Ugochukwu middle name Samuel Surname Ishmael, send it true Western Union so that my Nurse will go and collect the money same day here in Cote d`Ivoire west Africa city Abidjan please use the name information to send me the money so that it could enable me to by my drugs and food, And i want to bring this into your attention Cameron i want you to take action towards the issue of the transaction i told you about i don't want to leave that fund at bank and die because if i die no one will come for the funds my late husband deposited at bank of Africa before he die, therefore Cameron i am waiting your feedback with Western Union control numbers also write your address name of your country and name of sender so that they could bring the cash to me iat hospital, Thanks may God bless you and your child Hope to hear from you as soon as you receive this message because is Urgent From your sister in pains Mr. Anita Adams Johnson Email #12, from Cameron: Dear Sister <PRESIDIO_ANONYMIZED_PERSON>, I hope this message finds you in better spirits despite the challenges you are facing. I am deeply sorry to hear about your current situation and the lack of funds for your medical needs. Please know that my thoughts and prayers are with you, and I am committed to doing all I can to help. I understand your urgency, and I will certainly send the requested amount of 300 to the name you provided via Western Union. I will make it a priority to facilitate this transaction so that you receive the funds as soon as possible. Rest assured, my dear Sister Anita, that your wellbeing is of utmost importance to me. Regarding the larger matter of the fund transfer, I want to assure you that I am diligently working behind the scenes to ensure a smooth and seamless process. There are legal and financial considerations that must be addressed, and I am consulting with experts to ensure that all the necessary steps are followed correctly. I want you to know that I recognize the weight of this responsibility and that I am wholly committed to fulfilling your wishes. I will keep you updated on the progress and provide you with the required details as soon as they are available. May you find strength and resilience in the face of adversity, knowing that you are not alone in this journey. Your faith, courage, and generosity continue to inspire me, and I will do whatever it takes to honor your legacy. Please take care of yourself, Sister Anita, and be assured that I am here for you. I will send you the Western Union control numbers as soon as the transfer is complete. With heartfelt prayers and unwavering support, Cameron McCaffrey [email protected] Email #13, from Anita: Dear sir Thank you very much for your message, i hear what you said may God bless you 100 times in Jesus Christ name above, therefore i am waiting the control number as you promise may God continue leading you in anything you are doing over there in your country i love to visit you in your country if i get well from sickness, Hopeful to hear from you as soon as possible today, From your sister in pains Mrs. Anita Adams Johnson Email #14, from Cameron: Dear Sister <PRESIDIO_ANONYMIZED_PERSON>, I hope this message finds you embraced by the comfort of our Savior’s love and strength. I am with you in spirit, fervently praying for your recovery and well-being. I am making arrangements for the 300 transfer through Western Union and will provide the control number to you as swiftly as possible. Your health remains a top priority, and easing your current distress is of utmost importance to me. Furthermore, with regards to the larger cause, rest assured that I am wholeheartedly working to see through the process with the diligence and respect it deserves. As you have expressed a wish to visit my country upon recovery, know that this heartfelt desire adds even more to my resolve in accomplishing our shared goals. I will not rest until I have done all in my power to ensure the necessary provisions are in place for you to experience the comfort and relief you so richly deserve. Your trust in me is a continuous reminder of the profound duty bestowed upon me. This knowledge guides every step I take in honoring your wishes and the legacy of the generosity set forth by you and your late husband. As soon as the transaction is complete, I will relay the control numbers and all pertinent details. Let us remain steadfast in our faith, for it is the rock upon which we stand in times of trial. May God shower you with His mercy and healing grace. Look forward to my next update, and be assured of my unwavering commitment to our divine assignment. With the deepest empathy and assurance of my immediate assistance, Cameron McCaffrey [email protected] Email #15, from Anita: Dear Sir Good morning, Happy New year i hope you and your family enter 2024 in good health, is madam Anita Nurse is write you this message at this hour i want to bring your attention towards Anita case the worst is about to happen to your sister Anita all the cash i use to take care of your sister is finished since 3 days ago and i dont know what to do at this moment, Please sir kindly help, your sister is dying seriously i am ruining around since yesterday i got noting no money to get your sister drugs and her food she just manage to open her eyes this morning to tell me what i should write on her behalf sir your sister needs your help do not keep silence towards your sister issues because nobody know tomorrow madam Anita said you should try your best to send her the 300 dollars today with receiver name she give you last time, This is what your sister direct me to message you with her full heart she mention what i should write to you today please sir do not miss to send her the money today so that it could enable me to get her drugs and food before evening, Thank and remain bless with your family in Jesus Christ name above..Amen Writing by Anita Adams Johnson Nurse, We are waiting cash control number today sir thank you once again Email #16, from Cameron: Dear respected Anita’s Nurse, I hope this message reaches you in good time. Let me start by extending my heartfelt best wishes for the New Year to you, to Sister Anita, and to the entire caregiving team at the hospital. I also want to convey my deep appreciation for the tireless efforts you’re putting in to comfort and support Sister Anita during these dire circumstances. I am profoundly moved and filled with concern upon reading your latest message regarding Sister Anita’s deteriorating health condition. Please convey to her that she is continuously in my thoughts and prayers, and that her resilience and fortitude, even in the face of such adversity, inspire me to move mountains if it means bringing her some measure of relief. I cannot bear the thought of Sister Anita suffering further due to financial constraints. Given the urgency, I am prioritizing the transfer of the 300 and am working with Western Union to expedite the process. I understand that every moment is crucial and assure you I am applying the utmost urgency to this matter. Once the transfer is completed, I will immediately provide the control number along with all the necessary details required for you to collect the funds without any delay. May this humble act of assistance alleviate the immediate needs for Sister Anita’s medications and nourishment. Please understand that maintaining this line of communication is essential for me to successfully carry out Sister Anita’s wishes and to provide the needed support during her time of need. Your updates are invaluable, and I look forward to confirmation once the transaction has been completed and the funds have been received. Let Sister Anita know that her bravery is not going unnoticed and that she is not alone in her battle. We are united in hope and prayer, and I stand ready to aid in any way I can. With the grace of God, may this year bring health, healing, and peace to Sister Anita and to all of us. Sincerely awaiting your prompt reply, Cameron McCaffrey [email protected] Email #17, from Anita: Dear Mr. Cameron is madam Anita Nurse is written you this message at this point, sorry for late respond is due your sister Anita the sickness is getting worse than before due to lack of cash i am trying my best on her but the problem now is that all the cash the hospital director paid me last month has finished because of madam Anita, please Cameron come and help i don't have any-other place to get loan did you believe your sister has never eat or take any drugs since today's this money i went inside her room calling her she could not answer me all her body is so much hot, i went to doctor office this money and explain Anita conditions to our doctor now the doctor said Anita bills is up to 17 thousand dollars which is not possible to add another bills on top of 17 thousand dollars which i myself understand what doctor said this the reason why i contact you this morning to bring Anita issues to your attention if there any way you can support your sister please do faster to send cash to hospital before Anita will die here, Thanks, hope to hear from you as soon as you receive this later, From Anita Nurse

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