feat: abstract intent consumption

snapshots/NativeTokenGateway.Operations.json

@@ -1,8 +1,8 @@
 {
-  "borrowNative": "229604",
-  "repayNative": "168312",
-  "supplyAsCollateralNative": "160373",
-  "supplyNative": "136476",
-  "withdrawNative: full": "125620",
-  "withdrawNative: partial": "136825"
+  "borrowNative": "229560",
+  "repayNative": "168311",
+  "supplyAsCollateralNative": "160307",
+  "supplyNative": "136441",
+  "withdrawNative: full": "125585",
+  "withdrawNative: partial": "136781"
 }

snapshots/SignatureGateway.Operations.json

@@ -1,10 +1,10 @@
 {
-  "borrowWithSig": "215893",
-  "repayWithSig": "189160",
-  "setSelfAsUserPositionManagerWithSig": "74858",
-  "setUsingAsCollateralWithSig": "85053",
-  "supplyWithSig": "153205",
-  "updateUserDynamicConfigWithSig": "62769",
-  "updateUserRiskPremiumWithSig": "61579",
-  "withdrawWithSig": "131713"
+  "borrowWithSig": "215937",
+  "repayWithSig": "189247",
+  "setSelfAsUserPositionManagerWithSig": "75975",
+  "setUsingAsCollateralWithSig": "85085",
+  "supplyWithSig": "153213",
+  "updateUserDynamicConfigWithSig": "62750",
+  "updateUserRiskPremiumWithSig": "61450",
+  "withdrawWithSig": "131748"
 }

snapshots/Spoke.Operations.ZeroRiskPremium.json

@@ -1,33 +1,33 @@
 {
-  "borrow: first": "191325",
-  "borrow: second action, same reserve": "171297",
+  "borrow: first": "191303",
+  "borrow: second action, same reserve": "171275",
   "liquidationCall (receiveShares): full": "300391",
   "liquidationCall (receiveShares): partial": "300109",
   "liquidationCall: full": "310756",
   "liquidationCall: partial": "310474",
-  "permitReserve + repay (multicall)": "166317",
-  "permitReserve + supply (multicall)": "146862",
-  "permitReserve + supply + enable collateral (multicall)": "160573",
-  "repay: full": "126382",
-  "repay: partial": "131271",
-  "setUserPositionManagerWithSig: disable": "44846",
-  "setUserPositionManagerWithSig: enable": "68875",
-  "supply + enable collateral (multicall)": "140624",
-  "supply: 0 borrows, collateral disabled": "123679",
-  "supply: 0 borrows, collateral enabled": "106601",
-  "supply: second action, same reserve": "106579",
-  "updateUserDynamicConfig: 1 collateral": "73694",
-  "updateUserDynamicConfig: 2 collaterals": "88551",
-  "updateUserRiskPremium: 1 borrow": "94804",
-  "updateUserRiskPremium: 2 borrows": "104619",
-  "usingAsCollateral: 0 borrows, enable": "58915",
-  "usingAsCollateral: 1 borrow, disable": "105072",
-  "usingAsCollateral: 1 borrow, enable": "41803",
-  "usingAsCollateral: 2 borrows, disable": "126055",
-  "usingAsCollateral: 2 borrows, enable": "41815",
-  "withdraw: 0 borrows, full": "128910",
-  "withdraw: 0 borrows, partial": "133473",
-  "withdraw: 1 borrow, partial": "161036",
-  "withdraw: 2 borrows, partial": "174214",
-  "withdraw: non collateral": "106544"
+  "permitReserve + repay (multicall)": "166294",
+  "permitReserve + supply (multicall)": "146774",
+  "permitReserve + supply + enable collateral (multicall)": "160463",
+  "repay: full": "126425",
+  "repay: partial": "131314",
+  "setUserPositionManagerWithSig: disable": "45813",
+  "setUserPositionManagerWithSig: enable": "69842",
+  "supply + enable collateral (multicall)": "140536",
+  "supply: 0 borrows, collateral disabled": "123657",
+  "supply: 0 borrows, collateral enabled": "106579",
+  "supply: second action, same reserve": "106557",
+  "updateUserDynamicConfig: 1 collateral": "73782",
+  "updateUserDynamicConfig: 2 collaterals": "88639",
+  "updateUserRiskPremium: 1 borrow": "94782",
+  "updateUserRiskPremium: 2 borrows": "104597",
+  "usingAsCollateral: 0 borrows, enable": "58893",
+  "usingAsCollateral: 1 borrow, disable": "105050",
+  "usingAsCollateral: 1 borrow, enable": "41781",
+  "usingAsCollateral: 2 borrows, disable": "126033",
+  "usingAsCollateral: 2 borrows, enable": "41793",
+  "withdraw: 0 borrows, full": "128888",
+  "withdraw: 0 borrows, partial": "133451",
+  "withdraw: 1 borrow, partial": "161014",
+  "withdraw: 2 borrows, partial": "174192",
+  "withdraw: non collateral": "106522"
 }

snapshots/Spoke.Operations.json

@@ -1,33 +1,33 @@
 {
-  "borrow: first": "262009",
-  "borrow: second action, same reserve": "204981",
+  "borrow: first": "261987",
+  "borrow: second action, same reserve": "204959",
   "liquidationCall (receiveShares): full": "334242",
   "liquidationCall (receiveShares): partial": "333960",
   "liquidationCall: full": "344607",
   "liquidationCall: partial": "344325",
-  "permitReserve + repay (multicall)": "163504",
-  "permitReserve + supply (multicall)": "146862",
-  "permitReserve + supply + enable collateral (multicall)": "160573",
-  "repay: full": "120544",
-  "repay: partial": "139833",
-  "setUserPositionManagerWithSig: disable": "44846",
-  "setUserPositionManagerWithSig: enable": "68875",
-  "supply + enable collateral (multicall)": "140624",
-  "supply: 0 borrows, collateral disabled": "123679",
-  "supply: 0 borrows, collateral enabled": "106601",
-  "supply: second action, same reserve": "106579",
-  "updateUserDynamicConfig: 1 collateral": "73694",
-  "updateUserDynamicConfig: 2 collaterals": "88551",
-  "updateUserRiskPremium: 1 borrow": "151368",
-  "updateUserRiskPremium: 2 borrows": "204852",
-  "usingAsCollateral: 0 borrows, enable": "58915",
-  "usingAsCollateral: 1 borrow, disable": "161636",
-  "usingAsCollateral: 1 borrow, enable": "41803",
-  "usingAsCollateral: 2 borrows, disable": "234288",
-  "usingAsCollateral: 2 borrows, enable": "41815",
-  "withdraw: 0 borrows, full": "128910",
-  "withdraw: 0 borrows, partial": "133473",
-  "withdraw: 1 borrow, partial": "215098",
-  "withdraw: 2 borrows, partial": "259848",
-  "withdraw: non collateral": "106544"
+  "permitReserve + repay (multicall)": "163485",
+  "permitReserve + supply (multicall)": "146774",
+  "permitReserve + supply + enable collateral (multicall)": "160463",
+  "repay: full": "120587",
+  "repay: partial": "139876",
+  "setUserPositionManagerWithSig: disable": "45813",
+  "setUserPositionManagerWithSig: enable": "69842",
+  "supply + enable collateral (multicall)": "140536",
+  "supply: 0 borrows, collateral disabled": "123657",
+  "supply: 0 borrows, collateral enabled": "106579",
+  "supply: second action, same reserve": "106557",
+  "updateUserDynamicConfig: 1 collateral": "73782",
+  "updateUserDynamicConfig: 2 collaterals": "88639",
+  "updateUserRiskPremium: 1 borrow": "151346",
+  "updateUserRiskPremium: 2 borrows": "204830",
+  "usingAsCollateral: 0 borrows, enable": "58893",
+  "usingAsCollateral: 1 borrow, disable": "161614",
+  "usingAsCollateral: 1 borrow, enable": "41781",
+  "usingAsCollateral: 2 borrows, disable": "234266",
+  "usingAsCollateral: 2 borrows, enable": "41793",
+  "withdraw: 0 borrows, full": "128888",
+  "withdraw: 0 borrows, partial": "133451",
+  "withdraw: 1 borrow, partial": "215076",
+  "withdraw: 2 borrows, partial": "259826",
+  "withdraw: non collateral": "106522"
 }

src/interfaces/IIntentConsumer.sol

@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: UNLICENSED
+// Copyright (c) 2025 Aave Labs
+pragma solidity ^0.8.0;
+
+import {INoncesKeyed} from 'src/interfaces/INoncesKeyed.sol';
+
+/// @title IIntentConsumer
+/// @author Aave Labs
+/// @notice Minimal interface for IntentConsumer.
+interface IIntentConsumer is INoncesKeyed {
+  /// @notice Thrown when signature deadline has passed or signer is not the expected one.
+  error InvalidSignature();
+
+  /// @notice Returns the EIP-712 domain separator.
+  function DOMAIN_SEPARATOR() external view returns (bytes32);
+}

src/misc/IntentConsumer.sol

@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: UNLICENSED
+// Copyright (c) 2025 Aave Labs
+pragma solidity 0.8.28;
+
+import {EIP712} from 'src/dependencies/solady/EIP712.sol';
+import {NoncesKeyed} from 'src/utils/NoncesKeyed.sol';
+import {SignatureChecker} from 'src/dependencies/openzeppelin/SignatureChecker.sol';
+import {IIntentConsumer} from 'src/interfaces/IIntentConsumer.sol';
+
+abstract contract IntentConsumer is IIntentConsumer, NoncesKeyed, EIP712 {
+  /// @dev Verifies the signature for given signer & intent hash, and consumes the keyed-nonce.
+  /// @param signer The address of the user.
+  /// @param intentHash The hash of the intent struct.
+  /// @param nonce The keyed-nonce for the intent.
+  /// @param deadline The deadline timestamp for the intent.
+  /// @param signature The signature bytes.
+  function _verifyAndConsumeIntent(
+    address signer,
+    bytes32 intentHash,
+    uint256 nonce,
+    uint256 deadline,
+    bytes calldata signature
+  ) internal {
+    require(block.timestamp <= deadline, InvalidSignature());
+    bytes32 digest = _hashTypedData(intentHash);
+    require(SignatureChecker.isValidSignatureNow(signer, digest, signature), InvalidSignature());
+    _useCheckedNonce(signer, nonce);
+  }
+
+  /// @inheritdoc IIntentConsumer
+  function DOMAIN_SEPARATOR() external view returns (bytes32) {
+    return _domainSeparator();
+  }
+}