chore: update license

README.md

@@ -65,7 +65,7 @@ FOUNDRY_PROFILE=optimized-test forge test -vvv
 
 ### Integration testing
 
-The reference implementation provides a sample factory and deploy script for the factory, account implementation, and the demo validation module `SingleSignerValidationModule`. This is not audited nor intended for production use. Limitations set by the GPLv3 license apply.
+The reference implementation provides a sample factory and deploy script for the factory, account implementation, and the demo validation module `SingleSignerValidationModule`. This is not audited nor intended for production use. Limitations set by the MIT license apply.
 
 To run this script, provide appropriate values in a `.env` file based on the `.env.example` template, then run:
 

package.json

@@ -10,5 +10,6 @@
     "lint:src": "solhint --max-warnings 0 -c .solhint-src.json './src/**/*.sol'",
     "lint:test": "solhint --max-warnings 0 -c .solhint-test.json './test/**/*.sol'",
     "lint:script": "solhint --max-warnings 0 -c .solhint-script.json './script/**/*.sol'"
-  }
+  },
+  "license": "MIT"
 }

script/Deploy.s.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {IEntryPoint} from "@eth-infinitism/account-abstraction/interfaces/IEntryPoint.sol";

script/DeployAllowlistModule.s.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {Script, console} from "forge-std/Script.sol";

src/account/AccountExecutor.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 abstract contract AccountExecutor {

src/account/AccountFactory.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {IEntryPoint} from "@eth-infinitism/account-abstraction/interfaces/IEntryPoint.sol";

src/account/AccountStorage.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {EnumerableSet} from "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";

src/account/AccountStorageInitializable.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {AccountStorage, getAccountStorage} from "./AccountStorage.sol";

src/account/ModularAccountView.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {UUPSUpgradeable} from "@openzeppelin/contracts/proxy/utils/UUPSUpgradeable.sol";

src/account/ModuleManagerInternals.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {EnumerableSet} from "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";

src/account/ReferenceModularAccount.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {BaseAccount} from "@eth-infinitism/account-abstraction/core/BaseAccount.sol";

src/account/SemiModularAccount.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {ReferenceModularAccount} from "./ReferenceModularAccount.sol";

src/account/SemiModularAccount7702.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {IERC6900Account} from "../interfaces/IERC6900Account.sol";

src/helpers/CollectReturnData.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 function collectReturnData() pure returns (bytes memory returnData) {

src/helpers/Constants.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 // Index marking the start of the data for the validation function.

src/helpers/EmptyCalldataSlice.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 function getEmptyCalldataSlice() pure returns (bytes calldata) {

src/helpers/ValidationResHelpers.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 // solhint-disable-next-line private-vars-leading-underscore

src/libraries/HookConfigLib.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {HookConfig, ModuleEntity} from "../interfaces/IERC6900Account.sol";

src/libraries/KnownSelectorsLib.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {IAccount} from "@eth-infinitism/account-abstraction/interfaces/IAccount.sol";

src/libraries/ModuleEntityLib.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {ModuleEntity} from "../interfaces/IERC6900Account.sol";

src/libraries/ModuleStorageLib.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 type StoragePointer is bytes32;

src/libraries/SparseCalldataSegmentLib.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {RESERVED_VALIDATION_DATA_INDEX} from "../helpers/Constants.sol";

src/libraries/ValidationConfigLib.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {ModuleEntity, ValidationConfig, ValidationFlags} from "../interfaces/IERC6900Account.sol";

src/modules/BaseModule.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {IAccountExecute} from "@eth-infinitism/account-abstraction/interfaces/IAccountExecute.sol";

src/modules/ModuleEIP712.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 // A base for modules that use EIP-712 structured data signing.

src/modules/ReplaySafeWrapper.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {ModuleEIP712} from "./ModuleEIP712.sol";

src/modules/TokenReceiverModule.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {IERC1155Receiver} from "@openzeppelin/contracts/interfaces/IERC1155Receiver.sol";

src/modules/permissions/AllowlistModule.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {PackedUserOperation} from "@eth-infinitism/account-abstraction/interfaces/PackedUserOperation.sol";

src/modules/permissions/ERC20TokenLimitModule.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {UserOperationLib} from "@eth-infinitism/account-abstraction/core/UserOperationLib.sol";

src/modules/permissions/NativeTokenLimitModule.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {UserOperationLib} from "@eth-infinitism/account-abstraction/core/UserOperationLib.sol";

src/modules/validation/ISingleSignerValidationModule.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {IERC6900ValidationModule} from "../../interfaces/IERC6900ValidationModule.sol";

src/modules/validation/SingleSignerValidationModule.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {PackedUserOperation} from "@eth-infinitism/account-abstraction/interfaces/PackedUserOperation.sol";

test/account/AccountExecHooks.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {IERC6900ExecutionHookModule} from "../../src/interfaces/IERC6900ExecutionHookModule.sol";

test/account/AccountFactory.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {AccountFactory} from "../../src/account/AccountFactory.sol";

test/account/AccountReturnData.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {DIRECT_CALL_VALIDATION_ENTITY_ID} from "../../src/helpers/Constants.sol";

test/account/AccountStorage.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {_ACCOUNT_STORAGE_SLOT} from "../../src/account/AccountStorage.sol";

test/account/DirectCallsFromModule.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {ReferenceModularAccount} from "../../src/account/ReferenceModularAccount.sol";

test/account/GlobalValidationTest.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {PackedUserOperation} from "@eth-infinitism/account-abstraction/interfaces/PackedUserOperation.sol";

test/account/ModularAccountView.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {UUPSUpgradeable} from "@openzeppelin/contracts/proxy/utils/UUPSUpgradeable.sol";

test/account/MultiValidation.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {PackedUserOperation} from "@eth-infinitism/account-abstraction/interfaces/PackedUserOperation.sol";

test/account/PerHookData.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {IEntryPoint} from "@eth-infinitism/account-abstraction/interfaces/IEntryPoint.sol";

test/account/PermittedCallPermissions.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {ReferenceModularAccount} from "../../src/account/ReferenceModularAccount.sol";

test/account/ReferenceModularAccount.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {console} from "forge-std/Test.sol";

test/account/ReplaceModule.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {ReferenceModularAccount} from "../../src/account/ReferenceModularAccount.sol";

test/account/SelfCallAuthorization.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {IAccountExecute} from "@eth-infinitism/account-abstraction/interfaces/IAccountExecute.sol";

test/account/ValidationIntersection.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {PackedUserOperation} from "@eth-infinitism/account-abstraction/interfaces/PackedUserOperation.sol";

test/comparison/CompareSimpleAccount.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {Test} from "forge-std/Test.sol";

test/libraries/HookConfigLib.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {Test} from "forge-std/Test.sol";

test/libraries/KnowSelectorsLib.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {IAccount} from "@eth-infinitism/account-abstraction/interfaces/IAccount.sol";

test/libraries/ModuleEntityLib.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {Test} from "forge-std/Test.sol";

test/libraries/ModuleStorageLib.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {Test} from "forge-std/Test.sol";

test/libraries/SparseCalldataSegmentLib.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {Test} from "forge-std/Test.sol";

test/libraries/ValidationConfigLib.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {Test} from "forge-std/Test.sol";

test/mocks/ContractOwner.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {IERC1271} from "@openzeppelin/contracts/interfaces/IERC1271.sol";

test/mocks/Counter.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 /// @title A public counter for anyone to use.

test/mocks/Counter.t.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {Counter} from "./Counter.sol";

test/mocks/MockDiamondStorageContract.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {AccountStorageInitializable} from "../../src/account/AccountStorageInitializable.sol";

test/mocks/MockERC1155.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {ERC1155} from "@openzeppelin/contracts/token/ERC1155/ERC1155.sol";

test/mocks/MockERC20.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";

test/mocks/MockERC721.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {ERC721} from "@openzeppelin/contracts/token/ERC721/ERC721.sol";

test/mocks/MockModule.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {ERC165} from "@openzeppelin/contracts/utils/introspection/ERC165.sol";

test/mocks/SingleSignerFactoryFixture.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {IEntryPoint} from "@eth-infinitism/account-abstraction/interfaces/IEntryPoint.sol";

test/mocks/modules/ComprehensiveModule.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {PackedUserOperation} from "@eth-infinitism/account-abstraction/interfaces/PackedUserOperation.sol";

test/mocks/modules/DirectCallModule.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {IERC165} from "@openzeppelin/contracts/interfaces/IERC165.sol";

test/mocks/modules/MockAccessControlHookModule.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-3.0
+// SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
 import {PackedUserOperation} from "@eth-infinitism/account-abstraction/interfaces/PackedUserOperation.sol";