owner => admin

src/PublicAllocator.sol

@@ -37,7 +37,7 @@ contract PublicAllocator is IPublicAllocatorStaticTyping {
     /* STORAGE */
 
     /// @inheritdoc IPublicAllocatorBase
-    mapping(address => address) public owner;
+    mapping(address => address) public admin;
     /// @inheritdoc IPublicAllocatorBase
     mapping(address => uint256) public fee;
     /// @inheritdoc IPublicAllocatorBase
@@ -47,9 +47,11 @@ contract PublicAllocator is IPublicAllocatorStaticTyping {
 
     /* MODIFIER */
 
-    /// @dev Reverts if the caller is not the owner for this vault or the vault owner.
-    modifier onlyOwner(address vault) {
-        if (msg.sender != owner[vault] && msg.sender != IMetaMorpho(vault).owner()) revert ErrorsLib.NotOwner();
+    /// @dev Reverts if the caller is not the admin nor the owner of this vault.
+    modifier onlyAdminOrVaultOwner(address vault) {
+        if (msg.sender != admin[vault] && msg.sender != IMetaMorpho(vault).owner()) {
+            revert ErrorsLib.NotAdminNorVaultOwner();
+        }
         _;
     }
 
@@ -60,24 +62,24 @@ contract PublicAllocator is IPublicAllocatorStaticTyping {
         MORPHO = IMorpho(morpho);
     }
 
-    /* OWNER ONLY */
+    /* ADMIN OR VAULT OWNER ONLY */
 
     /// @inheritdoc IPublicAllocatorBase
-    function setOwner(address vault, address newOwner) external onlyOwner(vault) {
-        if (owner[vault] == newOwner) revert ErrorsLib.AlreadySet();
-        owner[vault] = newOwner;
-        emit EventsLib.SetOwner(msg.sender, vault, newOwner);
+    function setAdmin(address vault, address newAdmin) external onlyAdminOrVaultOwner(vault) {
+        if (admin[vault] == newAdmin) revert ErrorsLib.AlreadySet();
+        admin[vault] = newAdmin;
+        emit EventsLib.SetAdmin(msg.sender, vault, newAdmin);
     }
 
     /// @inheritdoc IPublicAllocatorBase
-    function setFee(address vault, uint256 newFee) external onlyOwner(vault) {
+    function setFee(address vault, uint256 newFee) external onlyAdminOrVaultOwner(vault) {
         if (fee[vault] == newFee) revert ErrorsLib.AlreadySet();
         fee[vault] = newFee;
         emit EventsLib.SetFee(msg.sender, vault, newFee);
     }
 
     /// @inheritdoc IPublicAllocatorBase
-    function setFlowCaps(address vault, FlowCapsConfig[] calldata config) external onlyOwner(vault) {
+    function setFlowCaps(address vault, FlowCapsConfig[] calldata config) external onlyAdminOrVaultOwner(vault) {
         for (uint256 i = 0; i < config.length; i++) {
             if (config[i].caps.maxIn > MAX_SETTABLE_FLOW_CAP || config[i].caps.maxOut > MAX_SETTABLE_FLOW_CAP) {
                 revert ErrorsLib.MaxSettableFlowCapExceeded();
@@ -89,7 +91,7 @@ contract PublicAllocator is IPublicAllocatorStaticTyping {
     }
 
     /// @inheritdoc IPublicAllocatorBase
-    function transferFee(address vault, address payable feeRecipient) external onlyOwner(vault) {
+    function transferFee(address vault, address payable feeRecipient) external onlyAdminOrVaultOwner(vault) {
         uint256 claimed = accruedFee[vault];
         accruedFee[vault] = 0;
         feeRecipient.transfer(claimed);

src/interfaces/IPublicAllocator.sol

@@ -38,12 +38,11 @@ struct Withdrawal {
 /// @dev This interface is used for factorizing IPublicAllocatorStaticTyping and IPublicAllocator.
 /// @dev Consider using the IPublicAllocator interface instead of this one.
 interface IPublicAllocatorBase {
-    /// @notice The address of the Morpho contract.
+    /// @notice The Morpho contract.
     function MORPHO() external view returns (IMorpho);
 
-    /// @notice The address of the owner of the public allocator config for a given vault.
-    /// @dev The owner of the underlying vault always has the public allocator owner capabilities.
-    function owner(address vault) external view returns (address);
+    /// @notice The admin for a given vault.
+    function admin(address vault) external view returns (address);
 
     /// @notice The current ETH fee for a given vault.
     function fee(address vault) external view returns (uint256);
@@ -64,8 +63,8 @@ interface IPublicAllocatorBase {
         external
         payable;
 
-    /// @notice Sets the owner for a given vault.
-    function setOwner(address vault, address newOwner) external;
+    /// @notice Sets the admin for a given vault.
+    function setAdmin(address vault, address newAdmin) external;
 
     /// @notice Sets the fee for a given vault.
     function setFee(address vault, uint256 newFee) external;

src/libraries/ErrorsLib.sol

@@ -8,8 +8,8 @@ import {Id} from "../../lib/metamorpho/src/interfaces/IMetaMorpho.sol";
 /// @custom:contact security@morpho.org
 /// @notice Library exposing error messages.
 library ErrorsLib {
-    /// @notice Thrown when the `msg.sender` is not the `owner`.
-    error NotOwner();
+    /// @notice Thrown when the `msg.sender` is not the admin nor the owner of the vault.
+    error NotAdminNorVaultOwner();
 
     /// @notice Thrown when the reallocation fee given is wrong.
     error IncorrectFee();

src/libraries/EventsLib.sol

@@ -16,15 +16,15 @@ library EventsLib {
         address indexed sender, address indexed vault, Id indexed supplyMarketId, uint256 suppliedAssets
     );
 
-    /// @notice Emitted when the owner is set for a vault.
-    event SetOwner(address indexed sender, address indexed vault, address indexed owner);
+    /// @notice Emitted when the admin is set for a vault.
+    event SetAdmin(address indexed sender, address indexed vault, address admin);
 
-    /// @notice Emitted when the owner changes the `fee` for a vault.
+    /// @notice Emitted when the fee is set for a vault.
     event SetFee(address indexed sender, address indexed vault, uint256 fee);
 
-    /// @notice Emitted when the owner transfers the fee for a vault.
+    /// @notice Emitted when the fee is transfered for a vault.
     event TransferFee(address indexed sender, address indexed vault, uint256 amount, address indexed feeRecipient);
 
-    /// @notice Emitted when the owner updates some flow caps for a vault.
+    /// @notice Emitted when the flow caps are set for a vault.
     event SetFlowCaps(address indexed sender, address indexed vault, FlowCapsConfig[] config);
 }

test/PublicAllocatorTest.sol

@@ -73,20 +73,40 @@ contract PublicAllocatorTest is IntegrationTest {
         _sortSupplyQueueIdleLast();
     }
 
-    function testOwner() public {
-        assertEq(publicAllocator.owner(address(vault)), address(0));
+    function testAdmin() public {
+        assertEq(publicAllocator.admin(address(vault)), address(0));
     }
 
-    function testSetOwner() public {
+    function testSetAdmin() public {
         vm.prank(OWNER);
-        publicAllocator.setOwner(address(vault), address(1));
-        assertEq(publicAllocator.owner(address(vault)), address(1));
+        publicAllocator.setAdmin(address(vault), address(1));
+        assertEq(publicAllocator.admin(address(vault)), address(1));
     }
 
-    function testSetOwnerFail() public {
+    function testSetAdminByAdmin(address sender, address newAdmin) public {
+        vm.assume(publicAllocator.admin(address(vault)) != sender);
+        vm.assume(sender != newAdmin);
+        vm.prank(OWNER);
+        publicAllocator.setAdmin(address(vault), sender);
+        vm.prank(sender);
+        publicAllocator.setAdmin(address(vault), newAdmin);
+        assertEq(publicAllocator.admin(address(vault)), newAdmin);
+    }
+
+    function testSetAdminAlreadySet() public {
         vm.expectRevert(ErrorsLib.AlreadySet.selector);
         vm.prank(OWNER);
-        publicAllocator.setOwner(address(vault), address(0));
+        publicAllocator.setAdmin(address(vault), address(0));
+    }
+
+    function testSetAdminAccessFail(address sender, address newAdmin) public {
+        vm.assume(sender != OWNER);
+        vm.assume(publicAllocator.admin(address(vault)) != sender);
+        vm.assume(publicAllocator.admin(address(vault)) != newAdmin);
+
+        vm.expectRevert(ErrorsLib.NotAdminNorVaultOwner.selector);
+        vm.prank(sender);
+        publicAllocator.setAdmin(address(vault), newAdmin);
     }
 
     function testReallocateCapZeroOutflowByDefault(uint128 flow) public {
@@ -112,28 +132,28 @@ contract PublicAllocatorTest is IntegrationTest {
 
     function testConfigureFlowAccessFail(address sender) public {
         vm.assume(sender != OWNER);
-        vm.assume(sender != address(0));
+        vm.assume(publicAllocator.admin(address(vault)) != sender);
 
         flowCaps.push(FlowCapsConfig(idleParams.id(), FlowCaps(0, 0)));
 
         vm.prank(sender);
-        vm.expectRevert(ErrorsLib.NotOwner.selector);
+        vm.expectRevert(ErrorsLib.NotAdminNorVaultOwner.selector);
         publicAllocator.setFlowCaps(address(vault), flowCaps);
     }
 
     function testTransferFeeAccessFail(address sender, address payable recipient) public {
         vm.assume(sender != OWNER);
-        vm.assume(sender != address(0));
+        vm.assume(publicAllocator.admin(address(vault)) != sender);
         vm.prank(sender);
-        vm.expectRevert(ErrorsLib.NotOwner.selector);
+        vm.expectRevert(ErrorsLib.NotAdminNorVaultOwner.selector);
         publicAllocator.transferFee(address(vault), recipient);
     }
 
     function testSetFeeAccessFail(address sender, uint256 fee) public {
         vm.assume(sender != OWNER);
-        vm.assume(sender != address(0));
+        vm.assume(publicAllocator.admin(address(vault)) != sender);
         vm.prank(sender);
-        vm.expectRevert(ErrorsLib.NotOwner.selector);
+        vm.expectRevert(ErrorsLib.NotAdminNorVaultOwner.selector);
         publicAllocator.setFee(address(vault), fee);
     }
 
@@ -146,6 +166,18 @@ contract PublicAllocatorTest is IntegrationTest {
         assertEq(publicAllocator.fee(address(vault)), fee);
     }
 
+    function testSetFeeByAdmin(uint256 fee, address sender) public {
+        vm.assume(publicAllocator.admin(address(vault)) != sender);
+        vm.assume(fee != publicAllocator.fee(address(vault)));
+        vm.prank(OWNER);
+        publicAllocator.setAdmin(address(vault), sender);
+        vm.prank(sender);
+        vm.expectEmit(address(publicAllocator));
+        emit EventsLib.SetFee(sender, address(vault), fee);
+        publicAllocator.setFee(address(vault), fee);
+        assertEq(publicAllocator.fee(address(vault)), fee);
+    }
+
     function testSetFeeAlreadySet(uint256 fee) public {
         vm.assume(fee != publicAllocator.fee(address(vault)));
         vm.prank(OWNER);
@@ -180,6 +212,35 @@ contract PublicAllocatorTest is IntegrationTest {
         assertEq(flowCap.maxOut, out1);
     }
 
+    function testSetFlowCapsByAdmin(uint128 in0, uint128 out0, uint128 in1, uint128 out1, address sender) public {
+        vm.assume(publicAllocator.admin(address(vault)) != sender);
+        in0 = uint128(bound(in0, 0, MAX_SETTABLE_FLOW_CAP));
+        out0 = uint128(bound(out0, 0, MAX_SETTABLE_FLOW_CAP));
+        in1 = uint128(bound(in1, 0, MAX_SETTABLE_FLOW_CAP));
+        out1 = uint128(bound(out1, 0, MAX_SETTABLE_FLOW_CAP));
+
+        flowCaps.push(FlowCapsConfig(idleParams.id(), FlowCaps(in0, out0)));
+        flowCaps.push(FlowCapsConfig(allMarkets[0].id(), FlowCaps(in1, out1)));
+
+        vm.prank(OWNER);
+        publicAllocator.setAdmin(address(vault), sender);
+
+        vm.expectEmit(address(publicAllocator));
+        emit EventsLib.SetFlowCaps(sender, address(vault), flowCaps);
+
+        vm.prank(sender);
+        publicAllocator.setFlowCaps(address(vault), flowCaps);
+
+        FlowCaps memory flowCap;
+        flowCap = publicAllocator.flowCaps(address(vault), idleParams.id());
+        assertEq(flowCap.maxIn, in0);
+        assertEq(flowCap.maxOut, out0);
+
+        flowCap = publicAllocator.flowCaps(address(vault), allMarkets[0].id());
+        assertEq(flowCap.maxIn, in1);
+        assertEq(flowCap.maxOut, out1);
+    }
+
     function testPublicReallocateEvent(uint128 flow, address sender) public {
         flow = uint128(bound(flow, 1, CAP2 / 2));
 
@@ -298,6 +359,30 @@ contract PublicAllocatorTest is IntegrationTest {
         assertEq(address(this).balance - before, 2 * 0.001 ether, "wrong fee transferred");
     }
 
+    function testTransferFeeByAdminSuccess(address sender) public {
+        vm.assume(publicAllocator.admin(address(vault)) != sender);
+        vm.prank(OWNER);
+        publicAllocator.setAdmin(address(vault), sender);
+        vm.prank(sender);
+        publicAllocator.setFee(address(vault), 0.001 ether);
+
+        flowCaps.push(FlowCapsConfig(idleParams.id(), FlowCaps(0, 2 ether)));
+        flowCaps.push(FlowCapsConfig(allMarkets[0].id(), FlowCaps(2 ether, 0)));
+        vm.prank(OWNER);
+        publicAllocator.setFlowCaps(address(vault), flowCaps);
+        withdrawals.push(Withdrawal(idleParams, 1 ether));
+
+        publicAllocator.reallocateTo{value: 0.001 ether}(address(vault), withdrawals, allMarkets[0]);
+        publicAllocator.reallocateTo{value: 0.001 ether}(address(vault), withdrawals, allMarkets[0]);
+
+        uint256 before = address(this).balance;
+
+        vm.prank(sender);
+        publicAllocator.transferFee(address(vault), payable(address(this)));
+
+        assertEq(address(this).balance - before, 2 * 0.001 ether, "wrong fee transferred");
+    }
+
     function testTransferFeeFail() public {
         vm.prank(OWNER);
         publicAllocator.setFee(address(vault), 0.001 ether);