@biconomy/permission-context-builder/dist/_cjs/src/contextBuilder.js

ERC-7715 Permission Context Builder utility package.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getDigest = exports._prepareMockEnableData = exports.encodeEnableSessions = exports.getContext = void 0;
const general_1 = require("./types/general.js");
const viem_1 = require("viem");
const ethers_1 = require("ethers");
const methods_1 = require("./utils/methods.js");
const signers_1 = require("./types/signers.js");
const accounts_1 = require("viem/accounts");
const webauthn_p256_1 = require("webauthn-p256");
const constants_1 = require("./utils/constants.js");
const getContext = async (walletClient, { smartAccountAddress, permissions, expiry, signer }) => {
    if (walletClient.chain === undefined) {
        throw new Error("Chain is undefined");
    }
    const chainId = walletClient.chain?.id;
    const uint160Address = BigInt(constants_1.smartSessionAddress[chainId]);
    const nonceKey = uint160Address << BigInt(32);
    let signers = [];
    if (signer.type === "keys") {
        const publicKeys = signer.data.ids.map((id) => (0, methods_1.decodeDIDToPublicKey)(id));
        publicKeys.forEach(key => {
            if (key.keyType === methods_1.KEY_TYPES.secp256k1) {
                const eoaAddress = (0, accounts_1.publicKeyToAddress)(key.key);
                const signer = { type: signers_1.SignerType.EOA, data: eoaAddress };
                signers.push(signer);
            }
            if (key.keyType === methods_1.KEY_TYPES.secp256r1) {
                const passkeyPublicKey = (0, webauthn_p256_1.parsePublicKey)(key.key);
                const signer = { type: signers_1.SignerType.PASSKEY, data: (0, viem_1.encodeAbiParameters)((0, viem_1.parseAbiParameters)('uint256, uint256'), [passkeyPublicKey.x, passkeyPublicKey.y]) };
                signers.push(signer);
            }
        });
    }
    const signerId = (0, viem_1.keccak256)((0, viem_1.encodeAbiParameters)((0, viem_1.parseAbiParameters)("address, bytes"), [constants_1.multiKeySignerAddress[chainId], (0, methods_1.encodeSigners)(signers)]));
    const actions = permissions.map(permission => ({
        actionId: (0, viem_1.keccak256)((0, viem_1.encodePacked)(["address", "bytes4"], [permission.data.target, (0, viem_1.toFunctionSelector)(permission.data.functionName)])),
        actionPolicies: [{ policy: constants_1.timeFramePolicyAddress[chainId], initData: (0, viem_1.encodePacked)(["uint128", "uint128"], [BigInt(expiry), BigInt(0)]) }]
    }));
    const enableData = await (0, exports._prepareMockEnableData)({
        smartAccountAddress,
        signers,
        walletClient,
        userOpPolicies: [],
        actions,
        erc1271Policies: [],
    });
    const context = (0, viem_1.encodePacked)(['uint192', 'bytes', 'bytes32', 'bytes'], [
        nonceKey,
        general_1.EXECUTE_SINGLE,
        signerId,
        (0, exports.encodeEnableSessions)(enableData)
    ]);
    return context;
};
exports.getContext = getContext;
const encodeEnableSessions = (enableData) => {
    return ethers_1.ethers.utils.defaultAbiCoder.encode([
        'tuple(address isigner, bytes isignerInitData, tuple(address policy, bytes initData)[] userOpPolicies, tuple(address policy, bytes initData)[] erc1271Policies, tuple(bytes32 actionId, tuple(address policy, bytes initData)[] actionPolicies)[] actions, bytes permissionEnableSig)'
    ], [{
            isigner: enableData.isigner,
            isignerInitData: enableData.isignerInitData,
            userOpPolicies: enableData.userOpPolicies,
            erc1271Policies: enableData.erc1271Policies,
            actions: enableData.actions.map(action => ({
                actionId: action.actionId,
                actionPolicies: action.actionPolicies
            })),
            permissionEnableSig: enableData.permissionEnableSig
        }]);
};
exports.encodeEnableSessions = encodeEnableSessions;
const _prepareMockEnableData = async ({ smartAccountAddress, signers, walletClient, userOpPolicies, actions, erc1271Policies, }) => {
    if (walletClient.account === undefined) {
        throw new Error("Account is undefined");
    }
    if (walletClient.chain === undefined) {
        throw new Error("Chain is undefined");
    }
    const chainId = walletClient.chain?.id;
    let enableData = {
        isigner: constants_1.multiKeySignerAddress[chainId],
        isignerInitData: (0, viem_1.toBytes)((0, methods_1.encodeSigners)(signers)),
        userOpPolicies,
        erc1271Policies,
        actions,
        permissionEnableSig: (0, viem_1.toBytes)("")
    };
    const digest = await (0, exports.getDigest)(walletClient, smartAccountAddress, enableData, general_1.SmartSessionMode.UNSAFE_ENABLE);
    enableData.permissionEnableSig = (0, viem_1.toBytes)((0, viem_1.encodePacked)(['address', 'bytes'], [constants_1.mockValidator[chainId], await walletClient.signMessage({ account: walletClient.account, message: digest })]));
    return enableData;
};
exports._prepareMockEnableData = _prepareMockEnableData;
const getDigest = async (walletClient, smartAccountAddress, enableData, mode) => {
    if (walletClient.chain === undefined) {
        throw new Error("Chain is undefined");
    }
    const chainId = walletClient.chain?.id;
    const abi = [
        "function getDigest(address isigner, address account, tuple(address isigner, bytes isignerInitData, tuple(address policy, bytes initData)[] userOpPolicies, tuple(address policy, bytes initData)[] erc1271Policies, tuple(bytes32 actionId, tuple(address policy, bytes initData)[] actionPolicies)[] actions, bytes permissionEnableSig) data, uint8 mode) view returns (bytes32)"
    ];
    const provider = new ethers_1.ethers.providers.JsonRpcProvider(walletClient.chain.rpcUrls.default.http[0]);
    const contract = new ethers_1.ethers.Contract(constants_1.smartSessionAddress[chainId], abi, provider);
    const digest = await contract.getDigest(constants_1.multiKeySignerAddress[chainId], smartAccountAddress, enableData, mode);
    return digest;
};
exports.getDigest = getDigest;
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