cmd, miner, signer: avoid panic if keystore is not available (#27039)

* cmd, miner, singer: avoid panic if keystore is not available * cmd/geth: print warning instead of panic
2023-04-03 05:08:06 -04:00
parent 7076ae00aa
commit 94457cce07
4 changed files with 31 additions and 6 deletions
@@ -111,7 +111,11 @@ func (s *UIServerAPI) DeriveAccount(url string, path string, pin *bool) (account

 // fetchKeystore retrieves the encrypted keystore from the account manager.
 func fetchKeystore(am *accounts.Manager) *keystore.KeyStore {
-	return am.Backends(keystore.KeyStoreType)[0].(*keystore.KeyStore)
+	ks := am.Backends(keystore.KeyStoreType)
+	if len(ks) == 0 {
+		return nil
+	}
+	return ks[0].(*keystore.KeyStore)
 }

 // ImportRawKey stores the given hex encoded ECDSA key into the key directory,