Introduce IPFS promo infobar (#19588)

* Introduce IPFS promo infobar
Resolves brave/brave-browser#32010

app/brave_generated_resources.grd

@@ -885,6 +885,21 @@ Or change later at <ph name="SETTINGS_EXTENIONS_LINK">$2<ex>brave://settings/ext
       <message name="IDS_BRAVE_IPFS_LEARN_MORE">
         Learn more about IPFS and privacy
       </message>
+      <message name="IDS_BRAVE_IPFS_INFOBAR_TEXT" desc="Text that promotes turning on autoredirect to the configured gateway setting">
+        This page is available on the IPFS network. Would you like to load IPFS pages using Brave's built-in support (via ipfs:// or ipns://)?
+      </message>
+      <message name="IDS_BRAVE_IPFS_INFOBAR_APPROVE" desc="Turns on promoted setting">
+        Always
+      </message>
+      <message name="IDS_BRAVE_IPFS_INFOBAR_APPROVE_ONCE" desc="Redirects to the ipfs:// or ipns:// resource for once">
+        Only This Time
+      </message>
+      <message name="IDS_BRAVE_IPFS_INFOBAR_NEVER" desc="Closed infobar and disables it showing">
+        No Thanks
+      </message>
+      <message name="IDS_BRAVE_IPFS_INFOBAR_LINK" desc="Link redirects to the privacy description article">
+        Learn how this affects my privacy
+      </message>
 
       <!-- Brave Wayback Machine -->
       <message name="IDS_BRAVE_WAYBACK_MACHINE_INFOBAR_PAGE_MISSING_TEXT" desc="The label for sorry message when page is not available on infobar">

browser/infobars/brave_ipfs_infobar_delegate.cc

@@ -0,0 +1,143 @@
+/* Copyright (c) 2023 The Brave Authors. All rights reserved.
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+#include "brave/browser/infobars/brave_ipfs_infobar_delegate.h"
+
+#include <algorithm>
+#include <utility>
+
+#include "brave/browser/ui/views/infobars/brave_confirm_infobar.h"
+#include "brave/components/ipfs/ipfs_constants.h"
+#include "brave/components/ipfs/pref_names.h"
+#include "brave/components/l10n/common/localization_util.h"
+#include "brave/grit/brave_generated_resources.h"
+#include "components/infobars/core/infobar.h"
+#include "components/prefs/pref_service.h"
+#include "ui/views/vector_icons.h"
+
+// BraveIPFSInfoBarDelegateObserver
+BraveIPFSInfoBarDelegateObserver::BraveIPFSInfoBarDelegateObserver() = default;
+
+BraveIPFSInfoBarDelegateObserver::~BraveIPFSInfoBarDelegateObserver() = default;
+
+// BraveIPFSInfoBarDelegate
+// static
+void BraveIPFSInfoBarDelegate::Create(
+    infobars::ContentInfoBarManager* infobar_manager,
+    std::unique_ptr<BraveIPFSInfoBarDelegateObserver> observer,
+    PrefService* local_state) {
+  if (!local_state->GetBoolean(kShowIPFSPromoInfobar)) {
+    return;
+  }
+  infobar_manager->AddInfoBar(std::make_unique<BraveConfirmInfoBar>(
+                                  std::make_unique<BraveIPFSInfoBarDelegate>(
+                                      std::move(observer), local_state)),
+                              true);
+}
+
+BraveIPFSInfoBarDelegate::BraveIPFSInfoBarDelegate(
+    std::unique_ptr<BraveIPFSInfoBarDelegateObserver> observer,
+    PrefService* local_state)
+    : observer_(std::move(observer)), local_state_(local_state) {}
+
+BraveIPFSInfoBarDelegate::~BraveIPFSInfoBarDelegate() {}
+
+// BraveConfirmInfoBarDelegate
+bool BraveIPFSInfoBarDelegate::HasCheckbox() const {
+  return false;
+}
+
+std::u16string BraveIPFSInfoBarDelegate::GetCheckboxText() const {
+  NOTREACHED_NORETURN();
+}
+
+void BraveIPFSInfoBarDelegate::SetCheckboxChecked(bool checked) {
+  NOTREACHED();
+}
+
+bool BraveIPFSInfoBarDelegate::InterceptClosing() {
+  return false;
+}
+
+// ConfirmInfoBarDelegate
+infobars::InfoBarDelegate::InfoBarIdentifier
+BraveIPFSInfoBarDelegate::GetIdentifier() const {
+  return BRAVE_IPFS_INFOBAR_DELEGATE;
+}
+
+const gfx::VectorIcon& BraveIPFSInfoBarDelegate::GetVectorIcon() const {
+  return views::kInfoIcon;
+}
+
+bool BraveIPFSInfoBarDelegate::ShouldExpire(
+    const NavigationDetails& details) const {
+  return details.is_navigation_to_different_page;
+}
+
+void BraveIPFSInfoBarDelegate::InfoBarDismissed() {}
+
+std::u16string BraveIPFSInfoBarDelegate::GetMessageText() const {
+  return brave_l10n::GetLocalizedResourceUTF16String(
+      IDS_BRAVE_IPFS_INFOBAR_TEXT);
+}
+
+int BraveIPFSInfoBarDelegate::GetButtons() const {
+  return BUTTON_OK | BUTTON_CANCEL | BUTTON_EXTRA;
+}
+
+bool BraveIPFSInfoBarDelegate::IsProminent(int id) const {
+  return id == BUTTON_OK || id == BUTTON_EXTRA;
+}
+
+std::u16string BraveIPFSInfoBarDelegate::GetButtonLabel(
+    InfoBarButton button) const {
+  switch (button) {
+    case InfoBarButton::BUTTON_OK:
+      return brave_l10n::GetLocalizedResourceUTF16String(
+          IDS_BRAVE_IPFS_INFOBAR_APPROVE);
+    case InfoBarButton::BUTTON_EXTRA:
+      return brave_l10n::GetLocalizedResourceUTF16String(
+          IDS_BRAVE_IPFS_INFOBAR_APPROVE_ONCE);
+    case InfoBarButton::BUTTON_CANCEL:
+      return brave_l10n::GetLocalizedResourceUTF16String(
+          IDS_BRAVE_IPFS_INFOBAR_NEVER);
+    default:
+      NOTREACHED_NORETURN();
+  }
+}
+
+std::vector<int> BraveIPFSInfoBarDelegate::GetButtonsOrder() const {
+  return {InfoBarButton::BUTTON_OK, InfoBarButton::BUTTON_EXTRA,
+          InfoBarButton::BUTTON_CANCEL};
+}
+
+std::u16string BraveIPFSInfoBarDelegate::GetLinkText() const {
+  return brave_l10n::GetLocalizedResourceUTF16String(
+      IDS_BRAVE_IPFS_INFOBAR_LINK);
+}
+
+GURL BraveIPFSInfoBarDelegate::GetLinkURL() const {
+  return GURL(ipfs::kIPFSLearnMorePrivacyURL);
+}
+
+bool BraveIPFSInfoBarDelegate::Accept() {
+  if (observer_) {
+    local_state_->SetBoolean(kShowIPFSPromoInfobar, false);
+    observer_->OnRedirectToIPFS(true);
+  }
+  return true;
+}
+
+bool BraveIPFSInfoBarDelegate::ExtraButtonPressed() {
+  if (observer_) {
+    observer_->OnRedirectToIPFS(false);
+  }
+  return true;
+}
+
+bool BraveIPFSInfoBarDelegate::Cancel() {
+  local_state_->SetBoolean(kShowIPFSPromoInfobar, false);
+  return true;
+}

browser/infobars/brave_ipfs_infobar_delegate.h

@@ -0,0 +1,73 @@
+/* Copyright (c) 2023 The Brave Authors. All rights reserved.
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+#ifndef BRAVE_BROWSER_INFOBARS_BRAVE_IPFS_INFOBAR_DELEGATE_H_
+#define BRAVE_BROWSER_INFOBARS_BRAVE_IPFS_INFOBAR_DELEGATE_H_
+
+#include <memory>
+#include <vector>
+
+#include "base/compiler_specific.h"
+#include "base/memory/raw_ptr.h"
+#include "brave/components/infobars/core/brave_confirm_infobar_delegate.h"
+#include "components/infobars/content/content_infobar_manager.h"
+#include "url/gurl.h"
+
+class PrefService;
+
+namespace infobars {
+class ContentInfoBarManager;
+}  // namespace infobars
+
+class BraveIPFSInfoBarDelegateObserver {
+ public:
+  BraveIPFSInfoBarDelegateObserver();
+  virtual void OnRedirectToIPFS(bool remember) = 0;
+  virtual ~BraveIPFSInfoBarDelegateObserver();
+};
+
+class BraveIPFSInfoBarDelegate : public BraveConfirmInfoBarDelegate {
+ public:
+  BraveIPFSInfoBarDelegate(const BraveIPFSInfoBarDelegate&) = delete;
+  BraveIPFSInfoBarDelegate& operator=(const BraveIPFSInfoBarDelegate&) = delete;
+
+  BraveIPFSInfoBarDelegate(
+      std::unique_ptr<BraveIPFSInfoBarDelegateObserver> observer,
+      PrefService* local_state);
+  ~BraveIPFSInfoBarDelegate() override;
+
+  static void Create(infobars::ContentInfoBarManager* infobar_manager,
+                     std::unique_ptr<BraveIPFSInfoBarDelegateObserver> observer,
+                     PrefService* local_state);
+
+ private:
+  // BraveConfirmInfoBarDelegate
+  bool HasCheckbox() const override;
+  std::u16string GetCheckboxText() const override;
+  void SetCheckboxChecked(bool checked) override;
+  bool InterceptClosing() override;
+
+  // ConfirmInfoBarDelegate
+  infobars::InfoBarDelegate::InfoBarIdentifier GetIdentifier() const override;
+  const gfx::VectorIcon& GetVectorIcon() const override;
+  bool ShouldExpire(const NavigationDetails& details) const override;
+  void InfoBarDismissed() override;
+  std::u16string GetMessageText() const override;
+  int GetButtons() const override;
+  std::vector<int> GetButtonsOrder() const override;
+  bool IsProminent(int id) const override;
+  std::u16string GetButtonLabel(InfoBarButton button) const override;
+  std::u16string GetLinkText() const override;
+  GURL GetLinkURL() const override;
+
+  bool Accept() override;
+  bool Cancel() override;
+  bool ExtraButtonPressed() override;
+
+  std::unique_ptr<BraveIPFSInfoBarDelegateObserver> observer_;
+  raw_ptr<PrefService> local_state_ = nullptr;
+};
+
+#endif  // BRAVE_BROWSER_INFOBARS_BRAVE_IPFS_INFOBAR_DELEGATE_H_

browser/infobars/sources.gni

@@ -49,6 +49,16 @@ if (!is_android) {
       "//brave/components/ipfs",
       "//components/user_prefs",
     ]
+    if (!is_android) {
+      brave_browser_infobar_sources += [
+        "//brave/browser/infobars/brave_ipfs_infobar_delegate.cc",
+        "//brave/browser/infobars/brave_ipfs_infobar_delegate.h",
+      ]
+      brave_browser_infobar_deps += [
+        "//brave/browser/ui/views/infobars:infobars",
+        "//brave/components/infobars/core:core",
+      ]
+    }
   }
 
   if (enable_brave_wayback_machine) {

browser/ipfs/ipfs_tab_helper.cc

@@ -16,6 +16,7 @@
 #include "brave/components/ipfs/ipfs_constants.h"
 #include "brave/components/ipfs/ipfs_utils.h"
 #include "brave/components/ipfs/pref_names.h"
+#include "build/buildflag.h"
 #include "chrome/browser/net/system_network_context_manager.h"
 #include "chrome/browser/shell_integration.h"
 #include "chrome/common/channel_info.h"
@@ -28,6 +29,10 @@
 #include "net/http/http_status_code.h"
 #include "url/origin.h"
 
+#if !BUILDFLAG(IS_ANDROID)
+#include "brave/browser/infobars/brave_ipfs_infobar_delegate.h"
+#endif
+
 namespace {
 
 // We have to check both domain and _dnslink.domain
@@ -62,6 +67,32 @@ void SetupIPFSProtocolHandler(const std::string& protocol) {
 
 namespace ipfs {
 
+#if !BUILDFLAG(IS_ANDROID)
+class BraveIPFSInfoBarDelegateObserverImpl
+    : public BraveIPFSInfoBarDelegateObserver {
+ public:
+  explicit BraveIPFSInfoBarDelegateObserverImpl(
+      base::WeakPtr<IPFSTabHelper> ipfs_tab_helper)
+      : ipfs_tab_helper_(ipfs_tab_helper) {}
+
+  void OnRedirectToIPFS(bool enable_gateway_autoredirect) override {
+    if (ipfs_tab_helper_.get() &&
+        ipfs_tab_helper_->ipfs_resolved_url_.is_valid()) {
+      if (enable_gateway_autoredirect) {
+        ipfs_tab_helper_->pref_service_->SetBoolean(
+            kIPFSAutoRedirectToConfiguredGateway, true);
+      }
+      ipfs_tab_helper_->LoadUrl(ipfs_tab_helper_->ipfs_resolved_url_);
+    }
+  }
+
+  ~BraveIPFSInfoBarDelegateObserverImpl() override = default;
+
+ private:
+  base::WeakPtr<IPFSTabHelper> ipfs_tab_helper_;
+};
+#endif  // !BUILDFLAG(IS_ANDROID)
+
 IPFSTabHelper::~IPFSTabHelper() = default;
 
 IPFSTabHelper::IPFSTabHelper(content::WebContents* web_contents)
@@ -143,6 +174,20 @@ void IPFSTabHelper::LoadUrl(const GURL& gurl) {
 }
 
 void IPFSTabHelper::UpdateLocationBar() {
+#if !BUILDFLAG(IS_ANDROID)
+  auto* content_infobar_manager =
+      infobars::ContentInfoBarManager::FromWebContents(web_contents());
+  // Check whether content_infobar_manager is present for unit tests
+  if (content_infobar_manager && ipfs_resolved_url_.is_valid() &&
+      !pref_service_->GetBoolean(kIPFSAutoRedirectToConfiguredGateway)) {
+    BraveIPFSInfoBarDelegate::Create(
+        content_infobar_manager,
+        std::make_unique<BraveIPFSInfoBarDelegateObserverImpl>(
+            weak_ptr_factory_.GetWeakPtr()),
+        pref_service_);
+  }
+#endif
+
   if (web_contents()->GetDelegate())
     web_contents()->GetDelegate()->NavigationStateChanged(
         web_contents(), content::INVALIDATE_TYPE_URL);

browser/ipfs/ipfs_tab_helper.h

@@ -106,6 +106,7 @@ class IPFSTabHelper : public content::WebContentsObserver,
   FRIEND_TEST_ALL_PREFIXES(IpfsTabHelperUnitTest,
                            GatewayIPNS_No_Redirect_WhenNoDnsLink);
   friend class content::WebContentsUserData<IPFSTabHelper>;
+  friend class BraveIPFSInfoBarDelegateObserverImpl;
   explicit IPFSTabHelper(content::WebContents* web_contents);
 
   GURL GetCurrentPageURL() const;