@openocean.finance/widget-sdk
Version:
OpenOcean Any-to-Any Cross-Chain-Swap SDK
169 lines • 6.29 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.getNativePermit = void 0;
const viem_1 = require("viem");
const actions_1 = require("viem/actions");
const abi_js_1 = require("../abi.js");
const utils_js_1 = require("../utils.js");
const EIP712_DOMAIN_TYPEHASH = '0x8b73c3c69bb8fe3d512ecc4cf759cc79239f7b179b0ffacaa9a75d522b39400f';
const EIP712_DOMAIN_TYPEHASH_WITH_SALT = '0x36c25de3e541d5d970f66e4210d728721220fff5c077cc6cd008b3a0c62adab7';
function makeDomainSeparator({ name, version, chainId, verifyingContract, withSalt = false, }) {
const nameHash = (0, viem_1.keccak256)((0, viem_1.toBytes)(name));
const versionHash = (0, viem_1.keccak256)((0, viem_1.toBytes)(version));
const encoded = withSalt
? (0, viem_1.encodeAbiParameters)((0, viem_1.parseAbiParameters)('bytes32, bytes32, bytes32, address, bytes32'), [
EIP712_DOMAIN_TYPEHASH_WITH_SALT,
nameHash,
versionHash,
verifyingContract,
(0, viem_1.pad)((0, viem_1.toHex)(chainId), { size: 32 }),
])
: (0, viem_1.encodeAbiParameters)((0, viem_1.parseAbiParameters)('bytes32, bytes32, bytes32, uint256, address'), [
EIP712_DOMAIN_TYPEHASH,
nameHash,
versionHash,
BigInt(chainId),
verifyingContract,
]);
return (0, viem_1.keccak256)(encoded);
}
function validateDomainSeparator({ name, version, chainId, verifyingContract, domainSeparator, }) {
if (!name || !domainSeparator) {
return {
isValid: false,
domain: {},
};
}
for (const withSalt of [false, true]) {
const computedDS = makeDomainSeparator({
name,
version,
chainId,
verifyingContract,
withSalt,
});
if (domainSeparator.toLowerCase() === computedDS.toLowerCase()) {
return {
isValid: true,
domain: withSalt
? {
name,
version,
verifyingContract,
salt: (0, viem_1.pad)((0, viem_1.toHex)(chainId), { size: 32 }),
}
: {
name,
version,
chainId,
verifyingContract,
},
};
}
}
return {
isValid: false,
domain: {},
};
}
const getNativePermit = async (client, chainId, tokenAddress, spenderAddress, amount) => {
try {
const multicallAddress = await (0, utils_js_1.getMulticallAddress)(chainId);
const contractCalls = [
{
address: tokenAddress,
abi: abi_js_1.eip2612Abi,
functionName: 'name',
},
{
address: tokenAddress,
abi: abi_js_1.eip2612Abi,
functionName: 'DOMAIN_SEPARATOR',
},
{
address: tokenAddress,
abi: abi_js_1.eip2612Abi,
functionName: 'nonces',
args: [client.account.address],
},
{
address: tokenAddress,
abi: abi_js_1.eip2612Abi,
functionName: 'version',
},
];
if (multicallAddress) {
const [nameResult, domainSeparatorResult, noncesResult, versionResult] = await (0, actions_1.multicall)(client, {
contracts: contractCalls,
multicallAddress,
});
if (nameResult.status !== 'success' ||
domainSeparatorResult.status !== 'success' ||
noncesResult.status !== 'success' ||
!nameResult.result ||
!domainSeparatorResult.result ||
noncesResult.result === undefined) {
return undefined;
}
const { isValid, domain } = validateDomainSeparator({
name: nameResult.result,
version: versionResult.result ?? '1',
chainId,
verifyingContract: tokenAddress,
domainSeparator: domainSeparatorResult.result,
});
if (!isValid) {
return undefined;
}
const message = {
owner: client.account.address,
spender: spenderAddress,
value: amount.toString(),
nonce: noncesResult.result.toString(),
deadline: BigInt(Math.floor(Date.now() / 1000) + 30 * 60).toString(),
};
return {
primaryType: 'Permit',
domain,
types: abi_js_1.eip2612Types,
message,
};
}
const [nameResult, domainSeparatorResult, noncesResult, versionResult] = (await Promise.allSettled(contractCalls.map((call) => (0, actions_1.readContract)(client, call))));
if (nameResult.status !== 'fulfilled' ||
domainSeparatorResult.status !== 'fulfilled' ||
noncesResult.status !== 'fulfilled') {
return undefined;
}
const name = nameResult.value;
const version = versionResult.status === 'fulfilled' ? versionResult.value : '1';
const { isValid, domain } = validateDomainSeparator({
name,
version,
chainId,
verifyingContract: tokenAddress,
domainSeparator: domainSeparatorResult.value,
});
if (!isValid) {
return undefined;
}
const message = {
owner: client.account.address,
spender: spenderAddress,
value: amount.toString(),
nonce: noncesResult.value.toString(),
deadline: BigInt(Math.floor(Date.now() / 1000) + 30 * 60).toString(),
};
return {
primaryType: 'Permit',
domain,
types: abi_js_1.eip2612Types,
message,
};
}
catch {
return undefined;
}
};
exports.getNativePermit = getNativePermit;
//# sourceMappingURL=getNativePermit.js.map