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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/renderer/service_worker/embedded_worker_instance_client_impl.h"
#include <memory>
#include "base/containers/to_vector.h"
#include "base/debug/crash_logging.h"
#include "base/debug/dump_without_crashing.h"
#include "base/functional/bind.h"
#include "base/metrics/histogram_macros.h"
#include "base/strings/utf_string_conversions.h"
#include "base/task/single_thread_task_runner.h"
#include "base/trace_event/trace_event.h"
#include "content/child/child_thread_impl.h"
#include "content/child/scoped_child_process_reference.h"
#include "content/common/features.h"
#include "content/public/common/content_client.h"
#include "content/renderer/policy_container_util.h"
#include "content/renderer/service_worker/service_worker_context_client.h"
#include "content/renderer/worker/fetch_client_settings_object_helpers.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "third_party/blink/public/common/features.h"
#include "third_party/blink/public/common/loader/worker_main_script_load_parameters.h"
#include "third_party/blink/public/platform/web_content_settings_client.h"
#include "third_party/blink/public/platform/web_runtime_features.h"
#include "third_party/blink/public/platform/web_security_origin.h"
#include "third_party/blink/public/platform/web_url.h"
#include "third_party/blink/public/web/web_console_message.h"
#include "third_party/blink/public/web/web_embedded_worker.h"
#include "third_party/blink/public/web/web_embedded_worker_start_data.h"
namespace content {
// static
void EmbeddedWorkerInstanceClientImpl::Create(
scoped_refptr<base::SingleThreadTaskRunner> initiator_thread_task_runner,
const std::vector<std::string>& cors_exempt_header_list,
mojo::PendingReceiver<blink::mojom::EmbeddedWorkerInstanceClient>
receiver) {
// This won't be leaked because the lifetime will be managed internally.
// See the class documentation for detail.
// We can't use MakeSelfOwnedReceiver because must give the worker thread
// a chance to stop by calling TerminateWorkerContext() and waiting
// before destructing.
new EmbeddedWorkerInstanceClientImpl(std::move(receiver),
std::move(initiator_thread_task_runner),
cors_exempt_header_list);
}
void EmbeddedWorkerInstanceClientImpl::WorkerContextDestroyed() {
DCHECK(initiator_thread_task_runner_->BelongsToCurrentThread());
TRACE_EVENT0("ServiceWorker",
"EmbeddedWorkerInstanceClientImpl::WorkerContextDestroyed");
delete this;
}
void EmbeddedWorkerInstanceClientImpl::StartWorker(
blink::mojom::EmbeddedWorkerStartParamsPtr params) {
DCHECK(initiator_thread_task_runner_->BelongsToCurrentThread());
DCHECK(!service_worker_context_client_);
TRACE_EVENT0("ServiceWorker",
"EmbeddedWorkerInstanceClientImpl::StartWorker");
auto start_timing = blink::mojom::EmbeddedWorkerStartTiming::New();
start_timing->start_worker_received_time = base::TimeTicks::Now();
if (base::FeatureList::IsEnabled(
features::kServiceWorkerAvoidMainThreadForInitialization)) {
// If ServiceWorkerAvoidMainThreadForInitialization feature is enabled, the
// fake empty list is set to `cors_exempt_header_list_` here, so override it
// with the actual list which is from mojom::EmbeddedWorkerStartParams.
cors_exempt_header_list_ = std::move(params->cors_exempt_header_list);
}
std::unique_ptr<blink::WebEmbeddedWorkerStartData> start_data =
BuildStartData(*params);
if (params->main_script_load_params) {
start_data->main_script_load_params =
std::make_unique<blink::WorkerMainScriptLoadParameters>();
start_data->main_script_load_params->request_id =
params->main_script_load_params->request_id;
start_data->main_script_load_params->response_head =
std::move(params->main_script_load_params->response_head);
start_data->main_script_load_params->response_body =
std::move(params->main_script_load_params->response_body);
start_data->main_script_load_params->redirect_responses =
std::move(params->main_script_load_params->redirect_response_heads);
start_data->main_script_load_params->redirect_infos =
params->main_script_load_params->redirect_infos;
start_data->main_script_load_params->url_loader_client_endpoints =
std::move(params->main_script_load_params->url_loader_client_endpoints);
}
start_data->policy_container =
ToWebPolicyContainer(std::move(params->policy_container));
for (const auto& feature : params->forced_enabled_runtime_features) {
blink::WebRuntimeFeatures::EnableFeatureFromString(feature, true);
}
// `cache_storage` may be null if COEP is not enabled, we cannot bind
// eagerly in that case.
mojo::PendingRemote<blink::mojom::CacheStorage> cache_storage =
std::move(params->provider_info->cache_storage);
mojo::PendingRemote<blink::mojom::BrowserInterfaceBroker>
browser_interface_broker =
std::move(params->provider_info->browser_interface_broker);
service_worker_context_client_ = std::make_unique<ServiceWorkerContextClient>(
params->service_worker_version_id, params->scope, params->script_url,
!params->installed_scripts_info.is_null(),
std::move(params->renderer_preferences),
std::move(params->service_worker_receiver),
std::move(params->controller_receiver), std::move(params->instance_host),
std::move(params->interface_provider), std::move(params->provider_info),
this, std::move(start_timing),
std::move(params->preference_watcher_receiver),
std::move(params->subresource_loader_factories),
std::move(params->subresource_loader_updater),
params->script_url_to_skip_throttling, initiator_thread_task_runner_,
params->service_worker_route_id, cors_exempt_header_list_,
params->storage_key, params->service_worker_token);
std::unique_ptr<blink::WebServiceWorkerInstalledScriptsManagerParams>
installed_scripts_manager_params;
// |installed_scripts_info| is null if scripts should be served by net layer,
// when the worker is not installed, or the worker is launched for checking
// the update.
if (params->installed_scripts_info) {
installed_scripts_manager_params =
std::make_unique<blink::WebServiceWorkerInstalledScriptsManagerParams>(
base::ToVector(
std::move(params->installed_scripts_info->installed_urls),
blink::ToWebURL),
std::move(params->installed_scripts_info->manager_receiver),
std::move(params->installed_scripts_info->manager_host_remote));
}
auto worker =
blink::WebEmbeddedWorker::Create(service_worker_context_client_.get());
service_worker_context_client_->StartWorkerContextOnInitiatorThread(
std::move(worker), std::move(start_data),
std::move(installed_scripts_manager_params),
std::move(params->content_settings_proxy), std::move(cache_storage),
std::move(browser_interface_broker),
std::move(params->coep_reporting_observer),
std::move(params->dip_reporting_observer));
}
void EmbeddedWorkerInstanceClientImpl::StopWorker() {
DCHECK(initiator_thread_task_runner_->BelongsToCurrentThread());
TRACE_EVENT0("ServiceWorker", "EmbeddedWorkerInstanceClientImpl::StopWorker");
// StopWorker must be called after StartWorker is called.
service_worker_context_client_->worker().TerminateWorkerContext();
// We continue in WorkerContextDestroyed() after the worker thread is stopped.
}
EmbeddedWorkerInstanceClientImpl::EmbeddedWorkerInstanceClientImpl(
mojo::PendingReceiver<blink::mojom::EmbeddedWorkerInstanceClient> receiver,
scoped_refptr<base::SingleThreadTaskRunner> initiator_thread_task_runner,
const std::vector<std::string>& cors_exempt_header_list)
: receiver_(this, std::move(receiver)),
initiator_thread_task_runner_(std::move(initiator_thread_task_runner)),
cors_exempt_header_list_(cors_exempt_header_list) {
DCHECK(initiator_thread_task_runner_->BelongsToCurrentThread());
receiver_.set_disconnect_handler(base::BindOnce(
&EmbeddedWorkerInstanceClientImpl::OnError, base::Unretained(this)));
}
EmbeddedWorkerInstanceClientImpl::~EmbeddedWorkerInstanceClientImpl() {
DCHECK(initiator_thread_task_runner_->BelongsToCurrentThread());
}
void EmbeddedWorkerInstanceClientImpl::OnError() {
DCHECK(initiator_thread_task_runner_->BelongsToCurrentThread());
// The connection to the browser process broke.
if (service_worker_context_client_) {
// The worker is running, so tell it to stop. We continue in
// WorkerContextDestroyed().
StopWorker();
return;
}
// Nothing left to do.
delete this;
}
std::unique_ptr<blink::WebEmbeddedWorkerStartData>
EmbeddedWorkerInstanceClientImpl::BuildStartData(
const blink::mojom::EmbeddedWorkerStartParams& params) {
DCHECK(initiator_thread_task_runner_->BelongsToCurrentThread());
auto start_data = std::make_unique<blink::WebEmbeddedWorkerStartData>(
FetchClientSettingsObjectFromMojomToWeb(
params.outside_fetch_client_settings_object));
start_data->script_url = params.script_url;
start_data->user_agent = blink::WebString::FromUTF8(params.user_agent);
start_data->ua_metadata = params.ua_metadata;
start_data->script_type = params.script_type;
start_data->wait_for_debugger_mode =
params.wait_for_debugger
? blink::WebEmbeddedWorkerStartData::kWaitForDebugger
: blink::WebEmbeddedWorkerStartData::kDontWaitForDebugger;
start_data->devtools_worker_token = params.devtools_worker_token;
start_data->service_worker_token = params.service_worker_token;
start_data->ukm_source_id = params.ukm_source_id;
return start_data;
}
} // namespace content
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