Clear IPFS cache when clearing browsing data

browser/browsing_data/BUILD.gn

@@ -1,3 +1,4 @@
+import("//brave/components/ipfs/buildflags/buildflags.gni")
 import("//extensions/buildflags/buildflags.gni")
 
 source_set("browsing_data") {
@@ -12,6 +13,7 @@ source_set("browsing_data") {
 
   deps = [
     "//base",
+    "//brave/components/ipfs/buildflags",
     "//chrome/common",
     "//components/browsing_data/core",
     "//components/content_settings/core/browser",
@@ -26,4 +28,8 @@ source_set("browsing_data") {
       "//extensions/browser",
     ]
   }
+
+  if (ipfs_enabled) {
+    deps += [ "//brave/components/ipfs" ]
+  }
 }

browser/browsing_data/brave_browsing_data_remover_delegate.cc

@@ -20,6 +20,19 @@
 #include "extensions/browser/event_router.h"
 #endif
 
+#if BUILDFLAG(IPFS_ENABLED)
+#include "base/command_line.h"
+#include "base/files/file_path.h"
+#include "base/process/launch.h"
+#include "base/process/process.h"
+#include "base/task/task_traits.h"
+#include "base/task/thread_pool.h"
+#include "base/threading/thread_restrictions.h"
+#include "base/time/time.h"
+#include "brave/browser/ipfs/ipfs_service_factory.h"
+#include "brave/components/ipfs/ipfs_service.h"
+#endif
+
 BraveBrowsingDataRemoverDelegate::BraveBrowsingDataRemoverDelegate(
     content::BrowserContext* browser_context)
     : ChromeBrowsingDataRemoverDelegate(browser_context),
@@ -46,6 +59,12 @@ void BraveBrowsingDataRemoverDelegate::RemoveEmbedderData(
   // shields settings with non-empty resource ids.
   if (remove_mask & DATA_TYPE_CONTENT_SETTINGS)
     ClearShieldsSettings(delete_begin, delete_end);
+
+#if BUILDFLAG(IPFS_ENABLED)
+  if (remove_mask & content::BrowsingDataRemover::DATA_TYPE_CACHE)
+    ClearIPFSCache();
+#endif
+
 #if BUILDFLAG(ENABLE_EXTENSIONS)
   if (remove_mask & DATA_TYPE_HISTORY) {
     auto* event_router = extensions::EventRouter::Get(profile_);
@@ -91,3 +110,68 @@ void BraveBrowsingDataRemoverDelegate::ClearShieldsSettings(
     }
   }
 }
+
+#if BUILDFLAG(IPFS_ENABLED)
+void BraveBrowsingDataRemoverDelegate::WaitForIPFSRepoGC(
+    base::Process process) {
+  bool exited = false;
+
+  {
+    base::ScopedAllowBaseSyncPrimitives scoped_allow_base_sync_primitives;
+
+    // Because we set maximum IPFS storage size as 1GB in Brave, ipfs repo gc
+    // command should be finished in just a few seconds and we do not expect
+    // this child process would hang forever. To be safe, we will wait for 30
+    // seconds max here.
+    exited = process.WaitForExitWithTimeout(base::TimeDelta::FromSeconds(30),
+                                            nullptr);
+  }
+
+  if (!exited)
+    process.Terminate(0, false /* wait */);
+}
+
+// Run ipfs repo gc command to clear IPFS cache when IPFS executable path is
+// available. Because the command does not support time ranged cleanup, we will
+// always clear the whole cache expect for pinned files when clearing browsing
+// data.
+void BraveBrowsingDataRemoverDelegate::ClearIPFSCache() {
+  auto* service =
+      ipfs::IpfsServiceFactory::GetInstance()->GetForContext(profile_);
+  if (!service)
+    return;
+
+  base::FilePath path = service->GetIpfsExecutablePath();
+  if (path.empty())
+    return;
+
+  base::CommandLine cmdline(path);
+  cmdline.AppendArg("repo");
+  cmdline.AppendArg("gc");
+
+  base::FilePath data_path = service->GetDataPath();
+  base::LaunchOptions options;
+#if defined(OS_WIN)
+  options.environment[L"IPFS_PATH"] = data_path.value();
+#else
+  options.environment["IPFS_PATH"] = data_path.value();
+#endif
+#if defined(OS_LINUX)
+  options.kill_on_parent_death = true;
+#endif
+#if defined(OS_WIN)
+  options.start_hidden = true;
+#endif
+
+  base::Process process = base::LaunchProcess(cmdline, options);
+  if (!process.IsValid()) {
+    return;
+  }
+
+  base::ThreadPool::PostTaskAndReply(
+      FROM_HERE, {base::TaskPriority::USER_VISIBLE, base::MayBlock()},
+      base::BindOnce(&BraveBrowsingDataRemoverDelegate::WaitForIPFSRepoGC,
+                     base::Unretained(this), base::Passed(&process)),
+      CreateTaskCompletionClosure(TracingDataType::kHostCache));
+}
+#endif  // BUILDFLAG(IPFS_ENABLED)

browser/browsing_data/brave_browsing_data_remover_delegate.h

@@ -7,8 +7,13 @@
 #define BRAVE_BROWSER_BROWSING_DATA_BRAVE_BROWSING_DATA_REMOVER_DELEGATE_H_
 
 #include "base/time/time.h"
+#include "brave/components/ipfs/buildflags/buildflags.h"
 #include "chrome/browser/browsing_data/chrome_browsing_data_remover_delegate.h"
 
+namespace base {
+class Process;
+}  // namespace base
+
 namespace content_settings {
 class BravePrefProvider;
 }  // namespace content_settings
@@ -41,6 +46,10 @@ class BraveBrowsingDataRemoverDelegate
                           override;
 
   void ClearShieldsSettings(base::Time begin_time, base::Time end_time);
+#if BUILDFLAG(IPFS_ENABLED)
+  void ClearIPFSCache();
+  void WaitForIPFSRepoGC(base::Process process);
+#endif
 
   Profile* profile_;
 };

chromium_src/base/threading/thread_restrictions.h

@@ -0,0 +1,17 @@
+/* Copyright (c) 2021 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 http://mozilla.org/MPL/2.0/. */
+
+#ifndef BRAVE_CHROMIUM_SRC_BASE_THREADING_THREAD_RESTRICTIONS_H_
+#define BRAVE_CHROMIUM_SRC_BASE_THREADING_THREAD_RESTRICTIONS_H_
+
+class BraveBrowsingDataRemoverDelegate;
+
+#define BRAVE_SCOPED_ALLOW_BASE_SYNC_PRIMITIVES_H \
+  friend class ::BraveBrowsingDataRemoverDelegate;
+
+#include "../../../../base/threading/thread_restrictions.h"
+#undef BRAVE_SCOPED_ALLOW_BASE_SYNC_PRIMITIVES_H
+
+#endif  // BRAVE_CHROMIUM_SRC_BASE_THREADING_THREAD_RESTRICTIONS_H_

chromium_src/chrome/browser/browsing_data/chrome_browsing_data_remover_delegate.h

@@ -0,0 +1,17 @@
+/* Copyright (c) 2021 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 http://mozilla.org/MPL/2.0/. */
+
+#ifndef BRAVE_CHROMIUM_SRC_CHROME_BROWSER_BROWSING_DATA_CHROME_BROWSING_DATA_REMOVER_DELEGATE_H_
+#define BRAVE_CHROMIUM_SRC_CHROME_BROWSER_BROWSING_DATA_CHROME_BROWSING_DATA_REMOVER_DELEGATE_H_
+
+class BraveBrowsingDataRemoverDelegate;
+
+#define BRAVE_CHROME_BROWSING_DATA_REMOVER_DELEGATE_H \
+  friend class BraveBrowsingDataRemoverDelegate;
+
+#include "../../../../../chrome/browser/browsing_data/chrome_browsing_data_remover_delegate.h"
+#undef BRAVE_CHROME_BROWSING_DATA_REMOVER_DELEGATE_H
+
+#endif  // BRAVE_CHROMIUM_SRC_CHROME_BROWSER_BROWSING_DATA_CHROME_BROWSING_DATA_REMOVER_DELEGATE_H_

components/ipfs/ipfs_service.h

@@ -70,6 +70,7 @@ class IpfsService : public KeyedService,
   bool IsIPFSExecutableAvailable() const;
   void RegisterIpfsClientUpdater();
   IPFSResolveMethodTypes GetIPFSResolveMethodType() const;
+  base::FilePath GetIpfsExecutablePath();
   base::FilePath GetDataPath() const;
   base::FilePath GetConfigFilePath() const;
 
@@ -88,7 +89,6 @@ class IpfsService : public KeyedService,
   void RunLaunchDaemonCallbackForTest(bool result);
 
  protected:
-  base::FilePath GetIpfsExecutablePath();
   void OnConfigLoaded(GetConfigCallback, const std::pair<bool, std::string>&);
 
  private:

patches/base-threading-thread_restrictions.h.patch

@@ -0,0 +1,12 @@
+diff --git a/base/threading/thread_restrictions.h b/base/threading/thread_restrictions.h
+index ac19eaecc4cc36c4376052c33314bc289bab7bcf..6e79d17b49ba84fa4ccbbfefd88c3aa1888a855b 100644
+--- a/base/threading/thread_restrictions.h
++++ b/base/threading/thread_restrictions.h
+@@ -433,6 +433,7 @@ INLINE_IF_DCHECK_IS_OFF void DisallowBaseSyncPrimitives()
+     EMPTY_BODY_IF_DCHECK_IS_OFF;
+
+ class BASE_EXPORT ScopedAllowBaseSyncPrimitives {
++  BRAVE_SCOPED_ALLOW_BASE_SYNC_PRIMITIVES_H
+  private:
+   // This can only be instantiated by friends. Use
+   // ScopedAllowBaseSyncPrimitivesForTesting in unit tests to avoid the friend

patches/chrome-browser-browsing_data-chrome_browsing_data_remover_delegate.h.patch

@@ -0,0 +1,12 @@
+diff --git a/chrome/browser/browsing_data/chrome_browsing_data_remover_delegate.h b/chrome/browser/browsing_data/chrome_browsing_data_remover_delegate.h
+index ae0d55606244bca6ac1a1fa0037e0dc286c36174..74bc2123ced2db3fcdfc8854aac5a61f6067bd62 100644
+--- a/chrome/browser/browsing_data/chrome_browsing_data_remover_delegate.h
++++ b/chrome/browser/browsing_data/chrome_browsing_data_remover_delegate.h
+@@ -195,6 +195,7 @@ class ChromeBrowsingDataRemoverDelegate
+   void OverrideDomainReliabilityClearerForTesting(
+       DomainReliabilityClearer clearer);
+
++  BRAVE_CHROME_BROWSING_DATA_REMOVER_DELEGATE_H
+  private:
+   using WebRtcEventLogManager = webrtc_event_logging::WebRtcEventLogManager;
+