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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/renderer/chrome_render_thread_observer.h"
#include <stddef.h>
#include <limits>
#include <memory>
#include <set>
#include <utility>
#include <vector>
#include "base/command_line.h"
#include "base/feature_list.h"
#include "base/files/file_util.h"
#include "base/functional/bind.h"
#include "base/location.h"
#include "base/memory/weak_ptr.h"
#include "base/metrics/histogram.h"
#include "base/metrics/statistics_recorder.h"
#include "base/no_destructor.h"
#include "base/path_service.h"
#include "base/strings/utf_string_conversions.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/single_thread_task_runner.h"
#include "base/threading/platform_thread.h"
#include "build/build_config.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/common/media/media_resource_provider.h"
#include "chrome/common/net/net_resource_provider.h"
#include "chrome/common/privacy_budget/privacy_budget_settings_provider.h"
#include "chrome/common/renderer_configuration.mojom.h"
#include "chrome/common/url_constants.h"
#include "chrome/renderer/process_state.h"
#include "components/visitedlink/renderer/visitedlink_reader.h"
#include "content/public/child/child_thread.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/resource_usage_reporter_type_converters.h"
#include "content/public/renderer/render_thread.h"
#include "extensions/buildflags/buildflags.h"
#include "ipc/ipc_sync_channel.h"
#include "media/base/localized_strings.h"
#include "mojo/public/cpp/bindings/associated_remote.h"
#include "net/base/net_errors.h"
#include "net/base/net_module.h"
#include "third_party/blink/public/common/associated_interfaces/associated_interface_registry.h"
#include "third_party/blink/public/common/features.h"
#include "third_party/blink/public/common/privacy_budget/identifiability_study_settings.h"
#include "third_party/blink/public/platform/web_string.h"
#include "third_party/blink/public/platform/web_url.h"
#include "third_party/blink/public/web/web_document.h"
#include "third_party/blink/public/web/web_frame.h"
#include "third_party/blink/public/web/web_security_policy.h"
#include "third_party/blink/public/web/web_view.h"
#if BUILDFLAG(IS_CHROMEOS)
#include "chrome/renderer/ash_merge_session_loader_throttle.h"
#endif
#if BUILDFLAG(ENABLE_BOUND_SESSION_CREDENTIALS)
#include "chrome/renderer/bound_session_credentials/bound_session_request_throttled_handler_renderer_impl.h"
#include "chrome/renderer/bound_session_credentials/bound_session_request_throttled_in_renderer_manager.h"
#endif
using blink::WebCache;
using blink::WebSecurityPolicy;
using content::RenderThread;
namespace {
#if BUILDFLAG(IS_CHROMEOS)
scoped_refptr<base::SequencedTaskRunner> GetCallbackGroupTaskRunner() {
content::ChildThread* child_thread = content::ChildThread::Get();
if (child_thread)
return child_thread->GetIOTaskRunner();
// This will happen when running via tests.
return base::SequencedTaskRunner::GetCurrentDefault();
}
#endif // BUILDFLAG(IS_CHROMEOS)
} // namespace
#if BUILDFLAG(IS_CHROMEOS)
// static
scoped_refptr<ChromeRenderThreadObserver::ChromeOSListener>
ChromeRenderThreadObserver::ChromeOSListener::Create(
mojo::PendingReceiver<chrome::mojom::ChromeOSListener>
chromeos_listener_receiver) {
scoped_refptr<ChromeOSListener> helper = new ChromeOSListener();
content::ChildThread::Get()->GetIOTaskRunner()->PostTask(
FROM_HERE, base::BindOnce(&ChromeOSListener::BindOnIOThread, helper,
std::move(chromeos_listener_receiver)));
return helper;
}
bool ChromeRenderThreadObserver::ChromeOSListener::IsMergeSessionRunning()
const {
base::AutoLock lock(lock_);
return merge_session_running_;
}
void ChromeRenderThreadObserver::ChromeOSListener::RunWhenMergeSessionFinished(
DelayedCallbackGroup::Callback callback) {
base::AutoLock lock(lock_);
DCHECK(merge_session_running_);
session_merged_callbacks_->Add(std::move(callback));
}
void ChromeRenderThreadObserver::ChromeOSListener::MergeSessionComplete() {
{
base::AutoLock lock(lock_);
merge_session_running_ = false;
}
session_merged_callbacks_->RunAll();
}
ChromeRenderThreadObserver::ChromeOSListener::ChromeOSListener()
: session_merged_callbacks_(base::MakeRefCounted<DelayedCallbackGroup>(
AshMergeSessionLoaderThrottle::GetMergeSessionTimeout(),
GetCallbackGroupTaskRunner())),
merge_session_running_(true) {}
ChromeRenderThreadObserver::ChromeOSListener::~ChromeOSListener() = default;
void ChromeRenderThreadObserver::ChromeOSListener::BindOnIOThread(
mojo::PendingReceiver<chrome::mojom::ChromeOSListener>
chromeos_listener_receiver) {
receiver_.Bind(std::move(chromeos_listener_receiver));
}
#endif // BUILDFLAG(IS_CHROMEOS)
ChromeRenderThreadObserver::ChromeRenderThreadObserver()
: visited_link_reader_(new visitedlink::VisitedLinkReader) {
// Configure modules that need access to resources.
net::NetModule::SetResourceProvider(ChromeNetResourceProvider);
media::SetLocalizedStringProvider(ChromeMediaLocalizedStringProvider);
}
ChromeRenderThreadObserver::~ChromeRenderThreadObserver() = default;
chrome::mojom::DynamicParamsPtr ChromeRenderThreadObserver::GetDynamicParams()
const {
{
base::AutoLock lock(dynamic_params_lock_);
if (dynamic_params_) {
return dynamic_params_.Clone();
}
}
return chrome::mojom::DynamicParams::New();
}
#if BUILDFLAG(ENABLE_BOUND_SESSION_CREDENTIALS)
// Returns null if `bound_session_request_throttled_in_renderer_manager_` is
// null. This can happen on profiles where `RendererUpdater` and
// `BoundSessionCookieRefreshService` keyed services are not created.
std::unique_ptr<BoundSessionRequestThrottledHandler>
ChromeRenderThreadObserver::CreateBoundSessionRequestThrottledHandler() const {
if (!bound_session_request_throttled_in_renderer_manager_) {
return nullptr;
}
return std::make_unique<BoundSessionRequestThrottledHandlerRendererImpl>(
bound_session_request_throttled_in_renderer_manager_, io_task_runner_);
}
#endif
void ChromeRenderThreadObserver::RegisterMojoInterfaces(
blink::AssociatedInterfaceRegistry* associated_interfaces) {
associated_interfaces->AddInterface<chrome::mojom::RendererConfiguration>(
base::BindRepeating(
&ChromeRenderThreadObserver::OnRendererConfigurationAssociatedRequest,
base::Unretained(this)));
associated_interfaces
->AddInterface<chrome::mojom::IdentifiabilityStudyConfigurator>(
base::BindRepeating(
&ChromeRenderThreadObserver::
OnIdentifiabilityStudyConfiguratorAssociatedRequest,
base::Unretained(this)));
}
void ChromeRenderThreadObserver::UnregisterMojoInterfaces(
blink::AssociatedInterfaceRegistry* associated_interfaces) {
associated_interfaces->RemoveInterface(
chrome::mojom::RendererConfiguration::Name_);
associated_interfaces->RemoveInterface(
chrome::mojom::IdentifiabilityStudyConfigurator::Name_);
}
void ChromeRenderThreadObserver::SetInitialConfiguration(
bool is_incognito_process,
mojo::PendingReceiver<chrome::mojom::ChromeOSListener>
chromeos_listener_receiver,
mojo::PendingRemote<content_settings::mojom::ContentSettingsManager>
content_settings_manager,
mojo::PendingRemote<chrome::mojom::BoundSessionRequestThrottledHandler>
bound_session_request_throttled_handler) {
if (content_settings_manager)
content_settings_manager_.Bind(std::move(content_settings_manager));
SetIsIncognitoProcess(is_incognito_process);
#if BUILDFLAG(IS_CHROMEOS)
if (chromeos_listener_receiver) {
chromeos_listener_ =
ChromeOSListener::Create(std::move(chromeos_listener_receiver));
}
#endif // BUILDFLAG(IS_CHROMEOS)
#if BUILDFLAG(ENABLE_BOUND_SESSION_CREDENTIALS)
if (bound_session_request_throttled_handler) {
bound_session_request_throttled_in_renderer_manager_ =
BoundSessionRequestThrottledInRendererManager::Create(
std::move(bound_session_request_throttled_handler));
io_task_runner_ = content::ChildThread::Get()->GetIOTaskRunner();
}
#endif
}
void ChromeRenderThreadObserver::SetConfiguration(
chrome::mojom::DynamicParamsPtr params) {
base::AutoLock lock(dynamic_params_lock_);
dynamic_params_ = std::move(params);
}
void ChromeRenderThreadObserver::ConfigureIdentifiabilityStudy(
bool meta_experiment_active) {
// This is superfluous in single-process mode and triggers a DCHECK
if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kSingleProcess)) {
blink::IdentifiabilityStudySettings::SetGlobalProvider(
std::make_unique<PrivacyBudgetSettingsProvider>(
meta_experiment_active));
}
}
void ChromeRenderThreadObserver::OnRendererConfigurationAssociatedRequest(
mojo::PendingAssociatedReceiver<chrome::mojom::RendererConfiguration>
receiver) {
renderer_configuration_receivers_.Add(this, std::move(receiver));
}
void ChromeRenderThreadObserver::
OnIdentifiabilityStudyConfiguratorAssociatedRequest(
mojo::PendingAssociatedReceiver<
chrome::mojom::IdentifiabilityStudyConfigurator> receiver) {
identifiability_study_configurator_receivers_.Add(this, std::move(receiver));
}
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