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content / browser / service_worker / service_worker_installed_scripts_sender.cc [blame]
// Copyright 2017 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_installed_scripts_sender.h"
#include "base/memory/ref_counted.h"
#include "base/stl_util.h"
#include "base/trace_event/trace_event.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_script_cache_map.h"
namespace content {
ServiceWorkerInstalledScriptsSender::ServiceWorkerInstalledScriptsSender(
ServiceWorkerVersion* owner)
: owner_(owner),
main_script_url_(owner_->script_url()),
main_script_id_(
owner_->script_cache_map()->LookupResourceId(main_script_url_)),
sent_main_script_(false),
state_(State::kNotStarted),
last_finished_reason_(
ServiceWorkerInstalledScriptReader::FinishedReason::kNotFinished) {
DCHECK(ServiceWorkerVersion::IsInstalled(owner_->status()));
DCHECK_NE(blink::mojom::kInvalidServiceWorkerResourceId, main_script_id_);
}
ServiceWorkerInstalledScriptsSender::~ServiceWorkerInstalledScriptsSender() {}
blink::mojom::ServiceWorkerInstalledScriptsInfoPtr
ServiceWorkerInstalledScriptsSender::CreateInfoAndBind() {
DCHECK_EQ(State::kNotStarted, state_);
std::vector<storage::mojom::ServiceWorkerResourceRecordPtr> resources =
owner_->script_cache_map()->GetResources();
std::vector<GURL> installed_urls;
for (const auto& resource : resources) {
installed_urls.emplace_back(resource->url);
if (resource->url == main_script_url_)
continue;
pending_scripts_.emplace(resource->resource_id, resource->url);
}
DCHECK(!installed_urls.empty())
<< "At least the main script should be installed.";
auto info = blink::mojom::ServiceWorkerInstalledScriptsInfo::New();
info->manager_receiver = manager_.BindNewPipeAndPassReceiver();
info->installed_urls = std::move(installed_urls);
receiver_.Bind(info->manager_host_remote.InitWithNewPipeAndPassReceiver());
return info;
}
void ServiceWorkerInstalledScriptsSender::Start() {
DCHECK_EQ(State::kNotStarted, state_);
DCHECK_NE(blink::mojom::kInvalidServiceWorkerResourceId, main_script_id_);
TRACE_EVENT_NESTABLE_ASYNC_BEGIN1("ServiceWorker",
"ServiceWorkerInstalledScriptsSender", this,
"main_script_url", main_script_url_.spec());
StartSendingScript(main_script_id_, main_script_url_);
}
void ServiceWorkerInstalledScriptsSender::StartSendingScript(
int64_t resource_id,
const GURL& script_url) {
DCHECK(!reader_);
DCHECK(current_sending_url_.is_empty());
state_ = State::kSendingScripts;
if (!owner_->context()) {
Abort(ServiceWorkerInstalledScriptReader::FinishedReason::kNoContextError);
return;
}
current_sending_url_ = script_url;
mojo::Remote<storage::mojom::ServiceWorkerResourceReader> resource_reader;
owner_->context()
->registry()
->GetRemoteStorageControl()
->CreateResourceReader(resource_id,
resource_reader.BindNewPipeAndPassReceiver());
TRACE_EVENT_NESTABLE_ASYNC_BEGIN1("ServiceWorker", "SendingScript", this,
"script_url", current_sending_url_.spec());
reader_ = std::make_unique<ServiceWorkerInstalledScriptReader>(
std::move(resource_reader), this);
reader_->Start();
}
void ServiceWorkerInstalledScriptsSender::OnStarted(
network::mojom::URLResponseHeadPtr response_head,
std::optional<mojo_base::BigBuffer> metadata,
mojo::ScopedDataPipeConsumerHandle body_handle,
mojo::ScopedDataPipeConsumerHandle meta_data_handle) {
DCHECK(response_head);
DCHECK(reader_);
DCHECK_EQ(State::kSendingScripts, state_);
uint64_t meta_data_size = metadata ? metadata->size() : 0;
TRACE_EVENT_NESTABLE_ASYNC_INSTANT2(
"ServiceWorker", "OnStarted", this, "body_size",
response_head->content_length, "meta_data_size", meta_data_size);
// Create a map of response headers.
scoped_refptr<net::HttpResponseHeaders> headers = response_head->headers;
DCHECK(headers);
base::flat_map<std::string, std::string> header_strings;
size_t iter = 0;
std::string key;
std::string value;
// This logic is copied from blink::ResourceResponse::AddHttpHeaderField.
while (headers->EnumerateHeaderLines(&iter, &key, &value)) {
if (header_strings.find(key) == header_strings.end()) {
header_strings[key] = value;
} else {
header_strings[key] += ", " + value;
}
}
// If `CreateInfoAndBind()` is not called, manager_ won't be set up.
if (manager_.is_bound()) {
auto script_info = blink::mojom::ServiceWorkerScriptInfo::New();
script_info->script_url = current_sending_url_;
script_info->headers = std::move(header_strings);
headers->GetCharset(&script_info->encoding);
script_info->body = std::move(body_handle);
script_info->body_size = response_head->content_length;
script_info->meta_data = std::move(meta_data_handle);
script_info->meta_data_size = meta_data_size;
manager_->TransferInstalledScript(std::move(script_info));
}
if (IsSendingMainScript()) {
owner_->SetMainScriptResponse(
std::make_unique<ServiceWorkerVersion::MainScriptResponse>(
*response_head));
}
}
void ServiceWorkerInstalledScriptsSender::OnFinished(
ServiceWorkerInstalledScriptReader::FinishedReason reason) {
DCHECK(reader_);
DCHECK_EQ(State::kSendingScripts, state_);
TRACE_EVENT_NESTABLE_ASYNC_END0("ServiceWorker", "SendingScript", this);
reader_.reset();
current_sending_url_ = GURL();
if (IsSendingMainScript())
sent_main_script_ = true;
if (reason != ServiceWorkerInstalledScriptReader::FinishedReason::kSuccess) {
Abort(reason);
return;
}
if (pending_scripts_.empty()) {
UpdateFinishedReasonAndBecomeIdle(
ServiceWorkerInstalledScriptReader::FinishedReason::kSuccess);
TRACE_EVENT_NESTABLE_ASYNC_END0(
"ServiceWorker", "ServiceWorkerInstalledScriptsSender", this);
return;
}
// Start sending the next script.
int64_t next_id = pending_scripts_.front().first;
GURL next_url = pending_scripts_.front().second;
pending_scripts_.pop();
StartSendingScript(next_id, next_url);
}
void ServiceWorkerInstalledScriptsSender::Abort(
ServiceWorkerInstalledScriptReader::FinishedReason reason) {
DCHECK_EQ(State::kSendingScripts, state_);
DCHECK_NE(ServiceWorkerInstalledScriptReader::FinishedReason::kSuccess,
reason);
TRACE_EVENT_NESTABLE_ASYNC_END1("ServiceWorker",
"ServiceWorkerInstalledScriptsSender", this,
"FinishedReason", static_cast<int>(reason));
// Remove all pending scripts.
// Note that base::queue doesn't have clear(), and also base::STLClearObject
// is not applicable for base::queue since it doesn't have reserve().
base::queue<std::pair<int64_t, GURL>> empty;
pending_scripts_.swap(empty);
UpdateFinishedReasonAndBecomeIdle(reason);
switch (reason) {
case ServiceWorkerInstalledScriptReader::FinishedReason::kNotFinished:
case ServiceWorkerInstalledScriptReader::FinishedReason::kSuccess:
NOTREACHED_IN_MIGRATION();
return;
case ServiceWorkerInstalledScriptReader::FinishedReason::
kNoResponseHeadError:
case ServiceWorkerInstalledScriptReader::FinishedReason::
kResponseReaderError:
owner_->SetStartWorkerStatusCode(
blink::ServiceWorkerStatusCode::kErrorDiskCache);
// Break the Mojo connection with the renderer so the service worker knows
// to stop waiting for the script data to arrive and terminate. Note that
// DeleteVersion() below sends the Stop IPC, but without breaking the
// connection here, the service worker would be blocked waiting for the
// script data and won't respond to Stop.
manager_.reset();
receiver_.reset();
// Delete the registration data since the data was corrupted.
if (owner_->context()) {
scoped_refptr<ServiceWorkerRegistration> registration =
owner_->context()->GetLiveRegistration(owner_->registration_id());
DCHECK(registration);
// Check if the registation is still alive. The registration may have
// already been deleted while this service worker was running.
if (!registration->is_uninstalled()) {
// This can destruct |this|.
registration->ForceDelete();
}
}
return;
case ServiceWorkerInstalledScriptReader::FinishedReason::
kCreateDataPipeError:
case ServiceWorkerInstalledScriptReader::FinishedReason::kConnectionError:
case ServiceWorkerInstalledScriptReader::FinishedReason::
kMetaDataSenderError:
case ServiceWorkerInstalledScriptReader::FinishedReason::kNoContextError:
// Break the Mojo connection with the renderer. This usually causes the
// service worker to stop, and the error handler of EmbeddedWorkerInstance
// is invoked soon.
manager_.reset();
receiver_.reset();
return;
}
}
void ServiceWorkerInstalledScriptsSender::UpdateFinishedReasonAndBecomeIdle(
ServiceWorkerInstalledScriptReader::FinishedReason reason) {
DCHECK_EQ(State::kSendingScripts, state_);
DCHECK_NE(ServiceWorkerInstalledScriptReader::FinishedReason::kNotFinished,
reason);
DCHECK(current_sending_url_.is_empty());
state_ = State::kIdle;
last_finished_reason_ = reason;
if (finish_callback_) {
std::move(finish_callback_).Run();
}
}
void ServiceWorkerInstalledScriptsSender::RequestInstalledScript(
const GURL& script_url) {
TRACE_EVENT1("ServiceWorker",
"ServiceWorkerInstalledScriptsSender::RequestInstalledScript",
"script_url", script_url.spec());
int64_t resource_id =
owner_->script_cache_map()->LookupResourceId(script_url);
if (resource_id == blink::mojom::kInvalidServiceWorkerResourceId) {
receiver_.ReportBadMessage("Requested script was not installed.");
return;
}
if (state_ == State::kSendingScripts) {
// The sender is now sending other scripts. Push the requested script into
// the waiting queue.
pending_scripts_.emplace(resource_id, script_url);
return;
}
DCHECK_EQ(State::kIdle, state_);
TRACE_EVENT_NESTABLE_ASYNC_BEGIN1("ServiceWorker",
"ServiceWorkerInstalledScriptsSender", this,
"main_script_url", main_script_url_.spec());
StartSendingScript(resource_id, script_url);
}
bool ServiceWorkerInstalledScriptsSender::IsSendingMainScript() const {
// |current_sending_url_| could match |main_script_url_| even though
// |sent_main_script_| is false if calling importScripts for the main
// script.
return !sent_main_script_ && current_sending_url_ == main_script_url_;
}
void ServiceWorkerInstalledScriptsSender::SetFinishCallback(
base::OnceClosure callback) {
finish_callback_ = std::move(callback);
}
} // namespace content