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fix: cp-8.0.0 require EIP-7702 for sponsored gas transactions #32253

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Merged
matthewwalsh0 merged 1 commit into from
Jun 24, 2026
+38 −6
Merged

fix: cp-8.0.0 require EIP-7702 for sponsored gas transactions #32253

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28 changes: 28 additions & 0 deletions app/util/transactions/hooks/delegation-7702-publish.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -223,6 +223,34 @@ describe('Delegation 7702 Publish Hook', () => {
});
});

it('throws when atomic batch is not supported for a gas-sponsored transaction', async () => {
await expect(
hookClass.getHook()(
{
...TRANSACTION_META_MOCK,
isGasFeeSponsored: true,
},
SIGNED_TX_MOCK,
),
).rejects.toThrow(
'Gas Station 7702: Chain must support EIP-7702 for sponsored or gas included transaction',
);
});

it('throws when atomic batch is not supported for a gas-included transaction', async () => {
await expect(
hookClass.getHook()(
{
...TRANSACTION_META_MOCK,
isGasFeeIncluded: true,
},
SIGNED_TX_MOCK,
),
).rejects.toThrow(
'Gas Station 7702: Chain must support EIP-7702 for sponsored or gas included transaction',
);
});

it('no selected gas fee token', async () => {
isAtomicBatchSupportedMock.mockResolvedValueOnce([
{
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16 changes: 10 additions & 6 deletions app/util/transactions/hooks/delegation-7702-publish.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -120,6 +120,8 @@ export class Delegation7702PublishHook {
transactionMeta;

const { from } = txParams;
const isGaslessBridge = Boolean(transactionMeta.isGasFeeIncluded);
const isSponsored = Boolean(transactionMeta.isGasFeeSponsored);

const atomicBatchSupport = await this.#isAtomicBatchSupported({
address: from as Hex,
Expand All @@ -137,16 +139,19 @@ export class Delegation7702PublishHook {

if (!isChainSupported) {
log('Skipping as EIP-7702 is not supported', { from, chainId });

if (isGaslessBridge || isSponsored) {
throw new Error(
'Chain must support EIP-7702 for sponsored or gas included transaction',
);
}

return EMPTY_RESULT;
}

const { delegationAddress, upgradeContractAddress } =
atomicBatchChainSupport;

const isGaslessBridge = transactionMeta.isGasFeeIncluded;

const isSponsored = Boolean(transactionMeta.isGasFeeSponsored);

if (
(!selectedGasFeeToken || !gasFeeTokens?.length) &&
!isGaslessBridge &&
Expand All @@ -173,8 +178,7 @@ export class Delegation7702PublishHook {
parseInt(isE2ETest(chainId) ? SEPOLIA_CHAIN_ID : chainId, 16),
);
const delegationManagerAddress = delegationEnvironment.DelegationManager;
const includeTransfer =
!isGaslessBridge && !transactionMeta.isGasFeeSponsored;
const includeTransfer = !isGaslessBridge && !isSponsored;

if (includeTransfer && (!gasFeeToken || gasFeeToken === undefined)) {
throw new Error('Gas fee token not found');
Expand Down
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