Fix third-party cookies settings page. (uplift to 1.62.x) (#21766)

Uplift of #21745 (squashed) to release

browser/extensions/api/settings_private/brave_prefs_util.cc

@@ -12,6 +12,7 @@
 #include "brave/components/brave_ads/core/public/prefs/pref_names.h"
 #include "brave/components/brave_news/common/pref_names.h"
 #include "brave/components/brave_rewards/common/pref_names.h"
+#include "brave/components/brave_shields/browser/brave_shields_util.h"
 #include "brave/components/brave_shields/common/pref_names.h"
 #include "brave/components/brave_vpn/common/buildflags/buildflags.h"
 #include "brave/components/brave_wallet/browser/pref_names.h"
@@ -27,14 +28,20 @@
 #include "brave/components/request_otr/common/pref_names.h"
 #include "brave/components/speedreader/common/buildflags/buildflags.h"
 #include "brave/components/tor/buildflags/buildflags.h"
+#include "chrome/browser/content_settings/cookie_settings_factory.h"
+#include "chrome/browser/content_settings/host_content_settings_map_factory.h"
 #include "chrome/browser/extensions/api/settings_private/prefs_util.h"
+#include "chrome/browser/profiles/profile.h"
 #include "chrome/common/extensions/api/settings_private.h"
 #include "chrome/common/pref_names.h"
 #include "components/browsing_data/core/pref_names.h"
+#include "components/content_settings/core/browser/cookie_settings.h"
+#include "components/content_settings/core/common/pref_names.h"
 #include "components/gcm_driver/gcm_buildflags.h"
 #include "components/omnibox/browser/omnibox_prefs.h"
 #include "components/search_engines/search_engines_pref_names.h"
 #include "extensions/buildflags/buildflags.h"
+#include "url/gurl.h"
 
 #if BUILDFLAG(ENABLE_BRAVE_WAYBACK_MACHINE)
 #include "brave/components/brave_wayback_machine/pref_names.h"
@@ -332,4 +339,21 @@ const PrefsUtil::TypedPrefMap& BravePrefsUtil::GetAllowlistedKeys() {
   return *s_brave_allowlist;
 }
 
+absl::optional<api::settings_private::PrefObject> BravePrefsUtil::GetPref(
+    const std::string& name) {
+  auto pref = PrefsUtil::GetPref(name);
+  // Simulate "Enforced" mode for kCookieControlsMode pref when Cookies are
+  // fully blocked via Shields. This will effectively disable the "Third-party
+  // cookies" mode selector on Settings page.
+  if (pref && name == prefs::kCookieControlsMode &&
+      pref->enforcement == api::settings_private::Enforcement::kNone &&
+      brave_shields::GetCookieControlType(
+          HostContentSettingsMapFactory::GetForProfile(profile()),
+          CookieSettingsFactory::GetForProfile(profile()).get(),
+          GURL()) == brave_shields::ControlType::BLOCK) {
+    pref->enforcement = api::settings_private::Enforcement::kEnforced;
+  }
+  return pref;
+}
+
 }  // namespace extensions

browser/extensions/api/settings_private/brave_prefs_util.h

@@ -6,8 +6,19 @@
 #ifndef BRAVE_BROWSER_EXTENSIONS_API_SETTINGS_PRIVATE_BRAVE_PREFS_UTIL_H_
 #define BRAVE_BROWSER_EXTENSIONS_API_SETTINGS_PRIVATE_BRAVE_PREFS_UTIL_H_
 
+#include <string>
+
+#define IsPrefTypeURL(...)   \
+  IsPrefTypeURL_NotUsed();   \
+  Profile* profile() const { \
+    return profile_.get();   \
+  }                          \
+  bool IsPrefTypeURL(__VA_ARGS__)
+
 #include "chrome/browser/extensions/api/settings_private/prefs_util.h"
 
+#undef IsPrefTypeURL
+
 namespace extensions {
 
 class BravePrefsUtil : public PrefsUtil {
@@ -17,6 +28,9 @@ class BravePrefsUtil : public PrefsUtil {
   // to prefs that clients of the settingsPrivate API may retrieve and
   // manipulate.
   const PrefsUtil::TypedPrefMap& GetAllowlistedKeys() override;
+
+  absl::optional<api::settings_private::PrefObject> GetPref(
+      const std::string& name) override;
 };
 
 }  // namespace extensions

browser/ui/webui/settings/default_brave_shields_handler.cc

@@ -101,6 +101,8 @@ void DefaultBraveShieldsHandler::RegisterMessages() {
 
   content_settings_observation_.Observe(
       HostContentSettingsMapFactory::GetForProfile(profile_));
+  cookie_settings_observation_.Observe(
+      CookieSettingsFactory::GetForProfile(profile_).get());
 }
 
 void DefaultBraveShieldsHandler::OnContentSettingChanged(
@@ -133,6 +135,14 @@ void DefaultBraveShieldsHandler::OnContentSettingChanged(
   FireWebUIListener("brave-shields-settings-changed");
 }
 
+void DefaultBraveShieldsHandler::OnThirdPartyCookieBlockingChanged(
+    bool block_third_party_cookies) {
+  if (!IsJavascriptAllowed()) {
+    return;
+  }
+  FireWebUIListener("brave-shields-settings-changed");
+}
+
 void DefaultBraveShieldsHandler::IsAdControlEnabled(
     const base::Value::List& args) {
   CHECK_EQ(args.size(), 1U);

browser/ui/webui/settings/default_brave_shields_handler.h

@@ -10,12 +10,15 @@
 #include "base/scoped_observation.h"
 #include "chrome/browser/ui/webui/settings/settings_page_ui_handler.h"
 #include "components/content_settings/core/browser/content_settings_observer.h"
+#include "components/content_settings/core/browser/cookie_settings.h"
 #include "components/content_settings/core/browser/host_content_settings_map.h"
 
 class Profile;
 
-class DefaultBraveShieldsHandler : public settings::SettingsPageUIHandler,
-                                   public content_settings::Observer {
+class DefaultBraveShieldsHandler
+    : public settings::SettingsPageUIHandler,
+      public content_settings::Observer,
+      public content_settings::CookieSettings::Observer {
  public:
   DefaultBraveShieldsHandler();
   DefaultBraveShieldsHandler(const DefaultBraveShieldsHandler&) = delete;
@@ -35,6 +38,10 @@ class DefaultBraveShieldsHandler : public settings::SettingsPageUIHandler,
       const ContentSettingsPattern& secondary_pattern,
       ContentSettingsTypeSet content_type_set) override;
 
+  // content_settings::CookieSettings::Observer overrides:
+  void OnThirdPartyCookieBlockingChanged(
+      bool block_third_party_cookies) override;
+
   void SetAdControlType(const base::Value::List& args);
   void IsAdControlEnabled(const base::Value::List& args);
   void SetCosmeticFilteringControlType(const base::Value::List& args);
@@ -56,6 +63,9 @@ class DefaultBraveShieldsHandler : public settings::SettingsPageUIHandler,
 
   base::ScopedObservation<HostContentSettingsMap, content_settings::Observer>
       content_settings_observation_{this};
+  base::ScopedObservation<content_settings::CookieSettings,
+                          content_settings::CookieSettings::Observer>
+      cookie_settings_observation_{this};
 };
 
 #endif  // BRAVE_BROWSER_UI_WEBUI_SETTINGS_DEFAULT_BRAVE_SHIELDS_HANDLER_H_

components/brave_shields/browser/brave_shields_util.cc

@@ -443,10 +443,28 @@ void SetCookieControlType(HostContentSettingsMap* map,
       case ControlType::BLOCK:
         map->SetDefaultContentSetting(ContentSettingsType::COOKIES,
                                       CONTENT_SETTING_BLOCK);
+        // Toggle the state off->on to enforce the pref update event on switch
+        // between BLOCK_THIRD_PARTY->BLOCK so the upstream Third-party cookies
+        // Settings page can be updated correctly. This is a temporary measure
+        // until we figure out a better UI for Cookies Settings page.
+        profile_state->SetInteger(
+            ::prefs::kCookieControlsMode,
+            static_cast<int>(content_settings::CookieControlsMode::kOff));
+        profile_state->SetInteger(
+            ::prefs::kCookieControlsMode,
+            static_cast<int>(
+                content_settings::CookieControlsMode::kBlockThirdParty));
         break;
       case ControlType::BLOCK_THIRD_PARTY:
         map->SetDefaultContentSetting(ContentSettingsType::COOKIES,
                                       CONTENT_SETTING_ALLOW);
+        // Toggle the state off->on to enforce the pref update event on switch
+        // between BLOCK->BLOCK_THIRD_PARTY so the upstream Third-party cookies
+        // Settings page can be updated correctly. This is a temporary measure
+        // until we figure out a better UI for Cookies Settings page.
+        profile_state->SetInteger(
+            ::prefs::kCookieControlsMode,
+            static_cast<int>(content_settings::CookieControlsMode::kOff));
         profile_state->SetInteger(
             ::prefs::kCookieControlsMode,
             static_cast<int>(

components/brave_shields/browser/brave_shields_util_unittest.cc

@@ -456,6 +456,7 @@ TEST_F(BraveShieldsUtilTest, SetCookieControlType_Default) {
   setting = map->GetContentSetting(GURL("http://brave.com"), GURL(),
                                    ContentSettingsType::COOKIES);
   EXPECT_EQ(CONTENT_SETTING_ALLOW, setting);
+  EXPECT_FALSE(cookies->ShouldBlockThirdPartyCookies());
   setting =
       map->GetContentSetting(GURL("http://brave.com"), GURL("http://brave.com"),
                              ContentSettingsType::COOKIES);
@@ -470,6 +471,20 @@ TEST_F(BraveShieldsUtilTest, SetCookieControlType_Default) {
   setting = map->GetContentSetting(GURL(), GURL("https://firstParty"),
                                    ContentSettingsType::COOKIES);
   EXPECT_EQ(CONTENT_SETTING_BLOCK, setting);
+  EXPECT_TRUE(cookies->ShouldBlockThirdPartyCookies());
+  // setting should apply to all urls
+  setting = map->GetContentSetting(GURL("http://brave.com"), GURL(),
+                                   ContentSettingsType::COOKIES);
+  EXPECT_EQ(CONTENT_SETTING_BLOCK, setting);
+  setting = map->GetContentSetting(GURL("http://brave.com"),
+                                   GURL("https://firstParty"),
+                                   ContentSettingsType::COOKIES);
+  EXPECT_EQ(CONTENT_SETTING_BLOCK, setting);
+
+  // Ensure BLOCK with kCookieControlsMode == kOff still blocks all cookies.
+  profile()->GetPrefs()->SetInteger(
+      ::prefs::kCookieControlsMode,
+      static_cast<int>(content_settings::CookieControlsMode::kOff));
   EXPECT_FALSE(cookies->ShouldBlockThirdPartyCookies());
   // setting should apply to all urls
   setting = map->GetContentSetting(GURL("http://brave.com"), GURL(),