Audit fixes: account and evolving-nft (#487)

* Fix: [M-1] EntryPoint contract can change

* Fix: [M-2] Use of forbidden TIMESTAMP op-code

* [M-3] Scores using multiplicative rules for ERC20s can be inflated

* Fix [M-4] Shared metadata will get out of order when deleting metadata

* uncomment tests

* Fix [L-1] Unable to upgrade receive()

* Fix [L-2] Cannot remove upgradability without revoking all default admins

* Fix: [Q-1] Duplicate code

* Fix [L-3] isValidSignature should be upgradable

* [Q-1]: Remove initialize from Account + Fix [L-4] Invalid accounts can register with Account factories

* Fix [Q-2] Duplicate comment

* Fix [Q-3] Constant MAX_BPS is not used

* Fix [Q-4] Mistyped functions

* Fix [Q-6] Inaccurate comment

* Fix [Q-7] _setPlatformFeeType() is not used

* Fix [Q-8] Spelling mistakes

* Fix [Q-9] Duplicate Import

* Fix (again) [Q-8] Spelling mistakes

* Fix [G-1] platformFeeType can share a storage slot

* Fix pt2 [M-3] Scores using multiplicative rules for ERC20s can be inflated

* UPdate Fix for M-3

* Fix M-3: remove redundant code

* Add missing EIP-1271 isValidSignature to Account

* Add missing receive() to non-upgradeable Account

* Fix EvolvingNFT tests

* Remove receive fn from ManagedAccountFactory

* Use internal function to access state

* dynamic-contracts deps temp

* Update dynamic-contracts deps

* Fix test

* Use extension role in managed account factory

* Use dynamic-contracts v1.2.1

Author: nkrishang

contracts/extension/PlatformFee.sol

@@ -19,12 +19,12 @@ abstract contract PlatformFee is IPlatformFee {
     /// @dev The % of primary sales collected as platform fees.
     uint16 private platformFeeBps;
 
-    /// @dev The flat amount collected by the contract as fees on primary sales.
-    uint256 private flatPlatformFee;
-
     /// @dev Fee type variants: percentage fee and flat fee
     PlatformFeeType private platformFeeType;
 
+    /// @dev The flat amount collected by the contract as fees on primary sales.
+    uint256 private flatPlatformFee;
+
     /// @dev Returns the platform fee recipient and bps.
     function getPlatformFeeInfo() public view override returns (address, uint16) {
         return (platformFeeRecipient, uint16(platformFeeBps));
@@ -90,9 +90,7 @@ abstract contract PlatformFee is IPlatformFee {
         if (!_canSetPlatformFeeInfo()) {
             revert("Not authorized");
         }
-        platformFeeType = _feeType;
-
-        emit PlatformFeeTypeUpdated(_feeType);
+        _setupPlatformFeeType(_feeType);
     }
 
     /// @dev Sets platform fee type.

contracts/extension/interface/IRulesEngine.sol

@@ -48,7 +48,7 @@ interface IRulesEngine {
 
     function getRulesEngineOverride() external view returns (address rulesEngineAddress);
 
-    function createRuleMulitiplicative(RuleTypeMultiplicative memory rule) external returns (bytes32 ruleId);
+    function createRuleMultiplicative(RuleTypeMultiplicative memory rule) external returns (bytes32 ruleId);
 
     function createRuleThreshold(RuleTypeThreshold memory rule) external returns (bytes32 ruleId);
 

contracts/extension/upgradeable/RulesEngine.sol

@@ -6,6 +6,7 @@ pragma solidity ^0.8.11;
 import "../interface/IRulesEngine.sol";
 
 import "../../eip/interface/IERC20.sol";
+import "../../eip/interface/IERC20Metadata.sol";
 import "../../eip/interface/IERC721.sol";
 import "../../eip/interface/IERC1155.sol";
 
@@ -71,7 +72,7 @@ abstract contract RulesEngine is IRulesEngine {
                             External functions
     //////////////////////////////////////////////////////////////*/
 
-    function createRuleMulitiplicative(RuleTypeMultiplicative memory rule) external returns (bytes32 ruleId) {
+    function createRuleMultiplicative(RuleTypeMultiplicative memory rule) external returns (bytes32 ruleId) {
         require(_canSetRules(), "RulesEngine: cannot set rules");
 
         ruleId = keccak256(
@@ -114,7 +115,9 @@ abstract contract RulesEngine is IRulesEngine {
         uint256 balance = 0;
 
         if (_rule.tokenType == TokenType.ERC20) {
-            balance = IERC20(_rule.token).balanceOf(_tokenOwner);
+            // NOTE: We are rounding down the ERC20 balance to the nearest full unit.
+            uint256 unit = 10**IERC20Metadata(_rule.token).decimals();
+            balance = IERC20(_rule.token).balanceOf(_tokenOwner) / unit;
         } else if (_rule.tokenType == TokenType.ERC721) {
             balance = IERC721(_rule.token).balanceOf(_tokenOwner);
         } else if (_rule.tokenType == TokenType.ERC1155) {
@@ -143,7 +146,7 @@ abstract contract RulesEngine is IRulesEngine {
     }
 
     function setRulesEngineOverride(address _rulesEngineAddress) external {
-        require(_canOverrieRulesEngine(), "RulesEngine: cannot override rules engine");
+        require(_canOverrideRulesEngine(), "RulesEngine: cannot override rules engine");
         _rulesEngineStorage().rulesEngineOverride = _rulesEngineAddress;
 
         emit RulesEngineOverriden(_rulesEngineAddress);
@@ -155,5 +158,5 @@ abstract contract RulesEngine is IRulesEngine {
 
     function _canSetRules() internal view virtual returns (bool);
 
-    function _canOverrieRulesEngine() internal view virtual returns (bool);
+    function _canOverrideRulesEngine() internal view virtual returns (bool);
 }

contracts/external-deps/openzeppelin/ERC1155PresetUpgradeable.sol

@@ -45,7 +45,7 @@ contract ERC1155PresetUpgradeable is
 
     mapping(uint256 => uint256) private _totalSupply;
 
-    /// @dev Initiliazes the contract, like a constructor.
+    /// @dev Initializes the contract, like a constructor.
     function __ERC1155Preset_init(address _deployer, string memory uri) internal onlyInitializing {
         // Initialize inherited contracts, most base-like -> most derived.
         __ERC1155_init(uri);

contracts/legacy-contracts/pre-builts/DropERC1155_V2.sol

@@ -137,7 +137,7 @@ contract DropERC1155_V2 is
 
     constructor() initializer {}
 
-    /// @dev Initiliazes the contract, like a constructor.
+    /// @dev Initializes the contract, like a constructor.
     function initialize(
         address _defaultAdmin,
         string memory _name,

contracts/legacy-contracts/pre-builts/DropERC20_V2.sol

@@ -93,7 +93,7 @@ contract DropERC20_V2 is
 
     constructor() initializer {}
 
-    /// @dev Initiliazes the contract, like a constructor.
+    /// @dev Initializes the contract, like a constructor.
     function initialize(
         address _defaultAdmin,
         string memory _name,

contracts/legacy-contracts/pre-builts/DropERC721_V3.sol

@@ -132,7 +132,7 @@ contract DropERC721_V3 is
 
     constructor() initializer {}
 
-    /// @dev Initiliazes the contract, like a constructor.
+    /// @dev Initializes the contract, like a constructor.
     function initialize(
         address _defaultAdmin,
         string memory _name,

contracts/legacy-contracts/pre-builts/SignatureDrop_V4.sol

@@ -63,7 +63,7 @@ contract SignatureDrop_V4 is
                     Constructor + initializer logic
     //////////////////////////////////////////////////////////////*/
 
-    /// @dev Initiliazes the contract, like a constructor.
+    /// @dev Initializes the contract, like a constructor.
     function initialize(
         address _defaultAdmin,
         string memory _name,

contracts/prebuilts/account/dynamic/DynamicAccount.sol

@@ -33,6 +33,7 @@ contract DynamicAccount is AccountCore, BaseRouter {
     /// @notice Initializes the smart contract wallet.
     function initialize(address _defaultAdmin, bytes calldata) public override initializer {
         __BaseRouter_init();
+        AccountCoreStorage.data().firstAdmin = _defaultAdmin;
         _setAdmin(_defaultAdmin, true);
     }
 

contracts/prebuilts/account/interface/IAccountFactory.sol

@@ -23,10 +23,18 @@ interface IAccountFactory {
     function createAccount(address admin, bytes calldata _data) external returns (address account);
 
     /// @notice Callback function for an Account to register its signers.
-    function onSignerAdded(address signer) external;
+    function onSignerAdded(
+        address signer,
+        address creatorAdmin,
+        bytes memory data
+    ) external;
 
     /// @notice Callback function for an Account to un-register its signers.
-    function onSignerRemoved(address signer) external;
+    function onSignerRemoved(
+        address signer,
+        address creatorAdmin,
+        bytes memory data
+    ) external;
 
     /*///////////////////////////////////////////////////////////////
                             View Functions