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content / browser / service_worker / service_worker_update_checker.cc [blame]
// Copyright 2018 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/browser/service_worker/service_worker_update_checker.h"
#include <utility>
#include "base/functional/bind.h"
#include "base/trace_event/trace_event.h"
#include "content/browser/loader/browser_initiated_resource_request.h"
#include "content/browser/service_worker/service_worker_consts.h"
#include "content/browser/service_worker/service_worker_context_core.h"
#include "content/browser/service_worker/service_worker_context_wrapper.h"
#include "content/browser/service_worker/service_worker_single_script_update_checker.h"
#include "content/browser/service_worker/service_worker_version.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/common/content_client.h"
#include "content/public/common/content_features.h"
#include "content/public/common/content_switches.h"
#include "net/http/http_request_headers.h"
#include "services/network/public/cpp/constants.h"
#include "services/network/public/cpp/features.h"
#include "third_party/blink/public/common/renderer_preferences/renderer_preferences.h"
namespace content {
ServiceWorkerUpdateChecker::ServiceWorkerUpdateChecker(
std::vector<storage::mojom::ServiceWorkerResourceRecordPtr>
scripts_to_compare,
const GURL& main_script_url,
int64_t main_script_resource_id,
const std::optional<std::string>& main_script_sha256_checksum,
scoped_refptr<ServiceWorkerVersion> version_to_update,
scoped_refptr<network::SharedURLLoaderFactory> loader_factory,
bool force_bypass_cache,
blink::mojom::ScriptType worker_script_type,
blink::mojom::ServiceWorkerUpdateViaCache update_via_cache,
base::TimeDelta time_since_last_check,
ServiceWorkerContextCore* context,
blink::mojom::FetchClientSettingsObjectPtr fetch_client_settings_object)
: main_script_url_(main_script_url),
main_script_resource_id_(main_script_resource_id),
main_script_sha256_checksum_(main_script_sha256_checksum),
scripts_to_compare_(std::move(scripts_to_compare)),
version_to_update_(std::move(version_to_update)),
loader_factory_(std::move(loader_factory)),
force_bypass_cache_(force_bypass_cache),
worker_script_type_(worker_script_type),
update_via_cache_(update_via_cache),
time_since_last_check_(time_since_last_check),
context_(context),
fetch_client_settings_object_(std::move(fetch_client_settings_object)) {
DCHECK(context_);
DCHECK(fetch_client_settings_object_);
DCHECK(fetch_client_settings_object_->outgoing_referrer.is_valid());
}
ServiceWorkerUpdateChecker::~ServiceWorkerUpdateChecker() = default;
void ServiceWorkerUpdateChecker::Start(UpdateStatusCallback callback) {
TRACE_EVENT_WITH_FLOW1("ServiceWorker", "ServiceWorkerUpdateChecker::Start",
this, TRACE_EVENT_FLAG_FLOW_OUT, "main_script_url",
main_script_url_.spec());
DCHECK(!scripts_to_compare_.empty());
callback_ = std::move(callback);
if (context_->process_manager()->IsShutdown()) {
// If it's being shut down, ServiceWorkerUpdateChecker is going to be
// destroyed after this task. We do nothing here.
return;
}
CheckOneScript(main_script_url_, main_script_resource_id_);
}
void ServiceWorkerUpdateChecker::OnOneUpdateCheckFinished(
int64_t old_resource_id,
const GURL& script_url,
ServiceWorkerSingleScriptUpdateChecker::Result result,
std::unique_ptr<ServiceWorkerSingleScriptUpdateChecker::FailureInfo>
failure_info,
std::unique_ptr<ServiceWorkerSingleScriptUpdateChecker::PausedState>
paused_state,
const std::optional<std::string>& sha256_checksum) {
TRACE_EVENT_WITH_FLOW2(
"ServiceWorker", "ServiceWorkerUpdateChecker::OnOneUpdateCheckFinished",
this, TRACE_EVENT_FLAG_FLOW_IN | TRACE_EVENT_FLAG_FLOW_OUT, "script_url",
script_url.spec(), "result",
ServiceWorkerSingleScriptUpdateChecker::ResultToString(result));
// If calculated checksum exists, add it to the set.
// |sha256_checksum| will be set only when cached scripts don't have sha256
// checksum fields and the update check results in kIdentical.
// When the result is kDifferent, the update check process doesn't scan all
// the data so the hash update is not completed yet. In this case, the
// finalized checksum is still not available here, and that will be handled in
// ServiceWorkerUpdatedScriptLoader.
if (sha256_checksum &&
result == ServiceWorkerSingleScriptUpdateChecker::Result::kIdentical) {
updated_sha256_script_checksums_[script_url] = *sha256_checksum;
}
bool is_main_script = script_url == main_script_url_;
// We only cares about the failures on the main script because an imported
// script might not exist anymore and fail to be loaded because it's not
// imported in a new script.
// See also https://github.com/w3c/ServiceWorker/issues/1374 for more details.
if (is_main_script &&
result == ServiceWorkerSingleScriptUpdateChecker::Result::kFailed) {
TRACE_EVENT_WITH_FLOW0(
"ServiceWorker",
"ServiceWorkerUpdateChecker::OnOneUpdateCheckFinished_MainScriptFailed",
this, TRACE_EVENT_FLAG_FLOW_IN);
std::move(callback_).Run(
ServiceWorkerSingleScriptUpdateChecker::Result::kFailed,
std::move(failure_info), std::map<GURL, std::string>());
return;
}
script_check_results_.emplace(
script_url,
ComparedScriptInfo(old_resource_id, result, std::move(paused_state),
std::move(failure_info)));
if (running_checker_->network_accessed())
network_accessed_ = true;
if (is_main_script) {
policy_container_host_ = running_checker_->policy_container_host();
}
if (ServiceWorkerSingleScriptUpdateChecker::Result::kDifferent == result) {
TRACE_EVENT_WITH_FLOW0(
"ServiceWorker",
"ServiceWorkerUpdateChecker::OnOneUpdateCheckFinished_UpdateFound",
this, TRACE_EVENT_FLAG_FLOW_IN);
updated_script_url_ = script_url;
// Found an updated script. Stop the comparison of scripts here and
// return to ServiceWorkerRegisterJob to continue the update.
// Note that running |callback_| will delete |this|.
std::move(callback_).Run(
ServiceWorkerSingleScriptUpdateChecker::Result::kDifferent,
nullptr /* failure_info */, std::map<GURL, std::string>());
return;
}
if (next_script_index_to_compare_ >= scripts_to_compare_.size()) {
TRACE_EVENT_WITH_FLOW0(
"ServiceWorker",
"ServiceWorkerUpdateChecker::OnOneUpdateCheckFinished_NoUpdate", this,
TRACE_EVENT_FLAG_FLOW_IN);
// None of scripts had any updates.
// Running |callback_| will delete |this|.
std::move(callback_).Run(
ServiceWorkerSingleScriptUpdateChecker::Result::kIdentical,
nullptr /* failure_info */, updated_sha256_script_checksums_);
return;
}
// The main script should be skipped since it should be compared first.
if (scripts_to_compare_[next_script_index_to_compare_]->url ==
main_script_url_) {
next_script_index_to_compare_++;
if (next_script_index_to_compare_ >= scripts_to_compare_.size()) {
TRACE_EVENT_WITH_FLOW0(
"ServiceWorker",
"ServiceWorkerUpdateChecker::OnOneUpdateCheckFinished_NoUpdate", this,
TRACE_EVENT_FLAG_FLOW_IN);
// None of scripts had any updates.
// Running |callback_| will delete |this|.
std::move(callback_).Run(
ServiceWorkerSingleScriptUpdateChecker::Result::kIdentical,
nullptr /* failure_info */, updated_sha256_script_checksums_);
return;
}
}
const GURL& next_url =
scripts_to_compare_[next_script_index_to_compare_]->url;
int64_t next_resource_id =
scripts_to_compare_[next_script_index_to_compare_]->resource_id;
next_script_index_to_compare_++;
CheckOneScript(next_url, next_resource_id);
}
std::map<GURL, ServiceWorkerUpdateChecker::ComparedScriptInfo>
ServiceWorkerUpdateChecker::TakeComparedResults() {
return std::move(script_check_results_);
}
void ServiceWorkerUpdateChecker::CheckOneScript(const GURL& url,
const int64_t resource_id) {
TRACE_EVENT_WITH_FLOW1(
"ServiceWorker", "ServiceWorkerUpdateChecker::CheckOneScript", this,
TRACE_EVENT_FLAG_FLOW_IN | TRACE_EVENT_FLAG_FLOW_OUT, "url", url.spec());
DCHECK_NE(blink::mojom::kInvalidServiceWorkerResourceId, resource_id)
<< "All the target scripts should be stored in the storage.";
version_to_update_->context()->GetStorageControl()->GetNewResourceId(
base::BindOnce(
&ServiceWorkerUpdateChecker::OnResourceIdAssignedForOneScriptCheck,
weak_factory_.GetWeakPtr(), url, resource_id));
}
void ServiceWorkerUpdateChecker::OnResourceIdAssignedForOneScriptCheck(
const GURL& url,
const int64_t resource_id,
const int64_t new_resource_id) {
if (context_->process_manager()->IsShutdown()) {
// If it's being shut down, ServiceWorkerUpdateChecker is going to be
// destroyed after this task. We do nothing here.
return;
}
// When the url matches with the main script url, we can always think that
// it's the main script even if a main script imports itself because the
// second load (network load for imported script) should hit the script
// cache map and it doesn't issue network request.
const bool is_main_script = url == main_script_url_;
ServiceWorkerRegistry* registry = version_to_update_->context()->registry();
// We need two identical readers for comparing and reading the resource for
// |resource_id| from the storage.
mojo::Remote<storage::mojom::ServiceWorkerResourceReader> compare_reader;
registry->GetRemoteStorageControl()->CreateResourceReader(
resource_id, compare_reader.BindNewPipeAndPassReceiver());
mojo::Remote<storage::mojom::ServiceWorkerResourceReader> copy_reader;
registry->GetRemoteStorageControl()->CreateResourceReader(
resource_id, copy_reader.BindNewPipeAndPassReceiver());
mojo::Remote<storage::mojom::ServiceWorkerResourceWriter> writer;
registry->GetRemoteStorageControl()->CreateResourceWriter(
new_resource_id, writer.BindNewPipeAndPassReceiver());
running_checker_ = std::make_unique<ServiceWorkerSingleScriptUpdateChecker>(
url, is_main_script, main_script_url_, version_to_update_->scope(),
force_bypass_cache_, worker_script_type_, update_via_cache_,
fetch_client_settings_object_, time_since_last_check_,
context_->wrapper()->browser_context(), loader_factory_,
std::move(compare_reader), std::move(copy_reader), std::move(writer),
new_resource_id,
// If the main script checksum is empty, then calculate each script
// checksum even if the check result is kIdentical.
main_script_sha256_checksum_
? ServiceWorkerSingleScriptUpdateChecker::ScriptChecksumUpdateOption::
kDefault
: ServiceWorkerSingleScriptUpdateChecker::ScriptChecksumUpdateOption::
kForceUpdate,
version_to_update_->key(),
base::BindOnce(&ServiceWorkerUpdateChecker::OnOneUpdateCheckFinished,
weak_factory_.GetWeakPtr(), resource_id));
}
ServiceWorkerUpdateChecker::ComparedScriptInfo::ComparedScriptInfo() = default;
ServiceWorkerUpdateChecker::ComparedScriptInfo::ComparedScriptInfo(
int64_t old_resource_id,
ServiceWorkerSingleScriptUpdateChecker::Result result,
std::unique_ptr<ServiceWorkerSingleScriptUpdateChecker::PausedState>
paused_state,
std::unique_ptr<ServiceWorkerSingleScriptUpdateChecker::FailureInfo>
failure_info)
: old_resource_id(old_resource_id),
result(result),
paused_state(std::move(paused_state)),
failure_info(std::move(failure_info)) {}
ServiceWorkerUpdateChecker::ComparedScriptInfo::~ComparedScriptInfo() = default;
ServiceWorkerUpdateChecker::ComparedScriptInfo::ComparedScriptInfo(
ServiceWorkerUpdateChecker::ComparedScriptInfo&& other) = default;
ServiceWorkerUpdateChecker::ComparedScriptInfo&
ServiceWorkerUpdateChecker::ComparedScriptInfo::operator=(
ServiceWorkerUpdateChecker::ComparedScriptInfo&& other) = default;
} // namespace content