Check if ETHEREUM_4337_BUNDLER_URL uses the correct chainId

- Closes #1987

safe_transaction_service/account_abstraction/services/aa_processor_service.py

@@ -27,6 +27,7 @@
 from ..models import SafeOperationConfirmation as SafeOperationConfirmationModel
 from ..models import UserOperation as UserOperationModel
 from ..models import UserOperationReceipt as UserOperationReceiptModel
+from ..utils import get_bundler_client
 
 logger = logging.getLogger(__name__)
 
@@ -42,11 +43,7 @@ class ExecutionFromSafeModuleNotDetected(AaProcessorServiceException):
 @cache
 def get_aa_processor_service() -> "AaProcessorService":
     ethereum_client = EthereumClientProvider()
-    bundler_client = (
-        BundlerClient(settings.ETHEREUM_4337_BUNDLER_URL)
-        if settings.ETHEREUM_4337_BUNDLER_URL
-        else None
-    )
+    bundler_client = get_bundler_client()
     if not bundler_client:
         logger.warning("Ethereum 4337 bundler client was not configured")
     supported_entry_points = settings.ETHEREUM_4337_SUPPORTED_ENTRY_POINTS

safe_transaction_service/account_abstraction/utils.py

@@ -0,0 +1,20 @@
+import logging
+from functools import cache
+from typing import Optional
+
+from django.conf import settings
+
+from gnosis.eth.account_abstraction import BundlerClient
+
+logger = logging.getLogger(__name__)
+
+
+@cache
+def get_bundler_client() -> Optional[BundlerClient]:
+    """
+    :return: Initialized `ERC4337 RPC Bundler Client` if configured, `None` otherwise
+    """
+    if settings.ETHEREUM_4337_BUNDLER_URL:
+        return BundlerClient(settings.ETHEREUM_4337_BUNDLER_URL)
+    logger.warning("ETHEREUM_4337_BUNDLER_URL not set, cannot configure bundler client")
+    return None

safe_transaction_service/history/management/commands/check_chainid_matches.py

@@ -1,5 +1,6 @@
 from django.core.management.base import BaseCommand, CommandError
 
+from safe_transaction_service.account_abstraction.utils import get_bundler_client
 from safe_transaction_service.utils.ethereum import get_chain_id
 
 from ...models import Chain
@@ -24,3 +25,18 @@ def handle(self, *args, **options):
             raise CommandError(
                 f"EthereumRPC chainId {chain_id} does not match previously used chainId {chain.chain_id}"
             )
+
+        bundler_client = get_bundler_client()
+        if bundler_client:
+            bundler_chain_id = bundler_client.get_chain_id()
+            if bundler_chain_id == chain_id:
+                self.stdout.write(
+                    self.style.SUCCESS(
+                        f"ERC4337 BundlerClient chainId {chain_id} looks good"
+                    )
+                )
+            else:
+                raise CommandError(
+                    f"ERC4337 BundlerClient chainId {bundler_chain_id} does not match "
+                    f"EthereumClient chainId {chain.chain_id}"
+                )

safe_transaction_service/history/tests/test_commands.py

@@ -10,6 +10,7 @@
 from django_celery_beat.models import PeriodicTask
 from eth_account import Account
 
+from gnosis.eth.account_abstraction import BundlerClient
 from gnosis.eth.ethereum_client import EthereumClient, EthereumNetwork
 from gnosis.safe.tests.safe_test_case import SafeTestCaseMixin
 
@@ -447,6 +448,36 @@ def test_check_chainid_matches(self, get_chain_id_mock: MagicMock):
         call_command(command, stdout=buf)
         self.assertIn("EthereumRPC chainId 1 looks good", buf.getvalue())
 
+    @mock.patch.object(BundlerClient, "get_chain_id", return_value=1234)
+    @mock.patch(
+        "safe_transaction_service.history.management.commands.check_chainid_matches.get_bundler_client",
+        return_value=BundlerClient(""),
+    )
+    @mock.patch(
+        "safe_transaction_service.history.management.commands.check_chainid_matches.get_chain_id",
+        return_value=EthereumNetwork.MAINNET.value,
+    )
+    def test_check_chainid_bundler_matches(
+        self,
+        get_chain_id_mock: MagicMock,
+        get_bundler_client_mock: MagicMock,
+        bundler_get_chain_id_mock: MagicMock,
+    ):
+        command = "check_chainid_matches"
+        with self.assertRaisesMessage(
+            CommandError,
+            "ERC4337 BundlerClient chainId 1234 does not match EthereumClient chainId 1",
+        ):
+            call_command(command)
+
+        bundler_get_chain_id_mock.return_value = EthereumNetwork.MAINNET.value
+        buf = StringIO()
+        call_command(command, stdout=buf)
+        self.assertEqual(
+            "EthereumRPC chainId 1 looks good\nERC4337 BundlerClient chainId 1 looks good\n",
+            buf.getvalue(),
+        )
+
     @mock.patch(
         "safe_transaction_service.history.management.commands.check_index_problems.settings.ETH_L2_NETWORK",
         return_value=True,