Store last wallet unlocked YMD in preferences

browser/extensions/api/brave_wallet_api.cc

@@ -104,6 +104,17 @@ BraveWalletReadyFunction::Run() {
   return RespondNow(NoArguments());
 }
 
+ExtensionFunction::ResponseAction BraveWalletNotifyWalletUnlockFunction::Run() {
+  if (browser_context()->IsTor()) {
+    return RespondNow(Error("Not available in Tor context"));
+  }
+
+  Profile* profile = Profile::FromBrowserContext(browser_context());
+  ::brave_wallet::UpdateLastUnlockPref(profile->GetPrefs());
+
+  return RespondNow(NoArguments());
+}
+
 ExtensionFunction::ResponseAction
 BraveWalletLoadUIFunction::Run() {
   auto* service = GetEthereumRemoteClientService(browser_context());

browser/extensions/api/brave_wallet_api.h

@@ -35,6 +35,15 @@ class BraveWalletReadyFunction :
   ResponseAction Run() override;
 };
 
+class BraveWalletNotifyWalletUnlockFunction : public ExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("braveWallet.notifyWalletUnlock", UNKNOWN)
+
+ protected:
+  ~BraveWalletNotifyWalletUnlockFunction() override {}
+  ResponseAction Run() override;
+};
+
 class BraveWalletShouldCheckForDappsFunction : public ExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("braveWallet.shouldCheckForDapps", UNKNOWN)

common/extensions/api/brave_wallet.json

@@ -59,6 +59,11 @@
             ]
           }
         ]
+      }, {
+        "name": "notifyWalletUnlock",
+        "type": "function",
+        "description": "Called to notify Brave that the wallet was unlocked",
+        "parameters": []
       }, {
         "name": "getWalletSeed",
         "type": "function",

components/brave_wallet/browser/brave_wallet_service.cc

@@ -40,6 +40,7 @@ void BraveWalletService::RegisterProfilePrefs(PrefRegistrySimple* registry) {
   registry->RegisterIntegerPref(kBraveWalletDefaultKeyringAccountNum, 0);
   registry->RegisterBooleanPref(kShowWalletIconOnToolbar, true);
   registry->RegisterBooleanPref(kBraveWalletBackupComplete, false);
+  registry->RegisterTimePref(kBraveWalletLastUnlockTime, base::Time());
 }
 
 brave_wallet::EthJsonRpcController* BraveWalletService::rpc_controller() const {

components/brave_wallet/browser/brave_wallet_utils.cc

@@ -15,10 +15,12 @@
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
-#include "base/strings/stringprintf.h"
+#include "base/time/time.h"
+#include "brave/components/brave_wallet/browser/pref_names.h"
 #include "brave/components/brave_wallet/common/features.h"
 #include "brave/third_party/ethash/src/include/ethash/keccak.h"
 #include "brave/vendor/bip39wally-core-native/include/wally_bip39.h"
+#include "components/prefs/pref_service.h"
 #include "crypto/random.h"
 #include "third_party/boringssl/src/include/openssl/evp.h"
 
@@ -375,4 +377,12 @@ void SecureZeroData(void* data, size_t size) {
 #endif
 }
 
+// Updates preferences for when the wallet is unlocked.
+// This is done in a utils function instead of in the KeyringController
+// because we call it both from the old extension and the new wallet when
+// it unlocks.
+void UpdateLastUnlockPref(PrefService* prefs) {
+  prefs->SetTime(kBraveWalletLastUnlockTime, base::Time::Now());
+}
+
 }  // namespace brave_wallet

components/brave_wallet/browser/brave_wallet_utils.h

@@ -12,6 +12,8 @@
 
 #include "brave/components/brave_wallet/browser/brave_wallet_types.h"
 
+class PrefService;
+
 namespace brave_wallet {
 
 bool IsNativeWalletEnabled();
@@ -74,6 +76,12 @@ std::string Namehash(const std::string& name);
 // So we use our own function for this purpose.
 void SecureZeroData(void* data, size_t size);
 
+// Updates preferences for when the wallet is unlocked.
+// This is done in a utils function instead of in the KeyringController
+// because we call it both from the old extension and the new wallet when
+// it unlocks.
+void UpdateLastUnlockPref(PrefService* prefs);
+
 }  // namespace brave_wallet
 
 #endif  // BRAVE_COMPONENTS_BRAVE_WALLET_BROWSER_BRAVE_WALLET_UTILS_H_

components/brave_wallet/browser/keyring_controller.cc

@@ -130,6 +130,7 @@ bool KeyringController::Unlock(const std::string& password) {
     return false;
   }
 
+  UpdateLastUnlockPref(prefs_);
   return true;
 }
 
@@ -205,6 +206,7 @@ bool KeyringController::CreateDefaultKeyringInternal(
     return false;
   default_keyring_ = std::make_unique<HDKeyring>();
   default_keyring_->ConstructRootHDKey(*seed, "m/44'/60'/0'/0");
+  UpdateLastUnlockPref(prefs_);
 
   return true;
 }

components/brave_wallet/browser/pref_names.cc

@@ -16,3 +16,5 @@ const char kBraveWalletDefaultKeyringAccountNum[] =
 const char kShowWalletIconOnToolbar[] =
     "brave.wallet.show_wallet_icon_on_toolbar";
 const char kBraveWalletBackupComplete[] = "brave.wallet.wallet_backup_complete";
+const char kBraveWalletLastUnlockTime[] =
+    "brave.wallet.wallet_last_unlock_time";

components/brave_wallet/browser/pref_names.h

@@ -13,5 +13,6 @@ extern const char kBraveWalletEncryptedMnemonic[];
 extern const char kBraveWalletDefaultKeyringAccountNum[];
 extern const char kShowWalletIconOnToolbar[];
 extern const char kBraveWalletBackupComplete[];
+extern const char kBraveWalletLastUnlockTime[];
 
 #endif  // BRAVE_COMPONENTS_BRAVE_WALLET_BROWSER_PREF_NAMES_H_

components/definitions/chromel.d.ts

@@ -351,6 +351,7 @@ declare namespace chrome.braveWallet {
   const shouldPromptForSetup: (callback: (dappDetection: boolean) => void) => void
   const loadUI: (callback: () => void) => void
   const isNativeWalletEnabled: (callback: (enabled: boolean) => void) => void
+  const notifyWalletUnlock: () => void
 }
 
 declare namespace chrome.ipfs {

test/data/extensions/api_test/braveWallet/background.js

@@ -152,6 +152,7 @@ function testBasics() {
     function braveWalletExtensionHasAccess() {
       if (chrome.braveWallet &&
           chrome.braveWallet.shouldPromptForSetup &&
+          chrome.braveWallet.notifyWalletUnlock &&
           chrome.braveWallet.loadUI &&
           chrome.braveWallet.promptToEnableWallet) {
         chrome.test.succeed();