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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/background_fetch/background_fetch_service_impl.h"
#include <memory>
#include "base/guid.h"
#include "content/browser/background_fetch/background_fetch_context.h"
#include "content/browser/background_fetch/background_fetch_metrics.h"
#include "content/browser/background_fetch/background_fetch_registration_id.h"
#include "content/browser/bad_message.h"
#include "content/browser/storage_partition_impl.h"
#include "content/common/service_worker/service_worker_types.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_process_host.h"
#include "mojo/public/cpp/bindings/strong_binding.h"
namespace content {
namespace {
// Maximum length of a developer-provided |developer_id| for a Background Fetch.
constexpr size_t kMaxDeveloperIdLength = 1024 * 1024;
// Maximum length of a developer-provided title for a Background Fetch.
constexpr size_t kMaxTitleLength = 1024 * 1024;
} // namespace
// static
void BackgroundFetchServiceImpl::Create(
blink::mojom::BackgroundFetchServiceRequest request,
RenderProcessHost* render_process_host,
const url::Origin& origin) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
base::BindOnce(
BackgroundFetchServiceImpl::CreateOnIoThread,
WrapRefCounted(static_cast<StoragePartitionImpl*>(
render_process_host->GetStoragePartition())
->GetBackgroundFetchContext()),
origin, std::move(request)));
}
// static
void BackgroundFetchServiceImpl::CreateOnIoThread(
scoped_refptr<BackgroundFetchContext> background_fetch_context,
url::Origin origin,
blink::mojom::BackgroundFetchServiceRequest request) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
mojo::MakeStrongBinding(
std::make_unique<BackgroundFetchServiceImpl>(
std::move(background_fetch_context), std::move(origin)),
std::move(request));
}
BackgroundFetchServiceImpl::BackgroundFetchServiceImpl(
scoped_refptr<BackgroundFetchContext> background_fetch_context,
url::Origin origin)
: background_fetch_context_(std::move(background_fetch_context)),
origin_(std::move(origin)) {
DCHECK(background_fetch_context_);
}
BackgroundFetchServiceImpl::~BackgroundFetchServiceImpl() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
}
void BackgroundFetchServiceImpl::Fetch(
int64_t service_worker_registration_id,
const std::string& developer_id,
const std::vector<ServiceWorkerFetchRequest>& requests,
const BackgroundFetchOptions& options,
const SkBitmap& icon,
FetchCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
if (!ValidateDeveloperId(developer_id) || !ValidateRequests(requests)) {
std::move(callback).Run(
blink::mojom::BackgroundFetchError::INVALID_ARGUMENT,
base::nullopt /* registration */);
background_fetch::RecordRegistrationCreatedError(
blink::mojom::BackgroundFetchError::INVALID_ARGUMENT);
return;
}
// New |unique_id|, since this is a new Background Fetch registration. This is
// the only place new |unique_id|s should be created outside of tests.
BackgroundFetchRegistrationId registration_id(service_worker_registration_id,
origin_, developer_id,
base::GenerateGUID());
background_fetch_context_->StartFetch(registration_id, requests, options,
icon, std::move(callback));
}
void BackgroundFetchServiceImpl::GetIconDisplaySize(
blink::mojom::BackgroundFetchService::GetIconDisplaySizeCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
background_fetch_context_->GetIconDisplaySize(std::move(callback));
}
void BackgroundFetchServiceImpl::UpdateUI(
int64_t service_worker_registration_id,
const std::string& developer_id,
const std::string& unique_id,
const std::string& title,
UpdateUICallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
if (!ValidateUniqueId(unique_id) || !ValidateTitle(title)) {
std::move(callback).Run(
blink::mojom::BackgroundFetchError::INVALID_ARGUMENT);
return;
}
BackgroundFetchRegistrationId registration_id(
service_worker_registration_id, origin_, developer_id, unique_id);
background_fetch_context_->UpdateUI(registration_id, title,
std::move(callback));
}
void BackgroundFetchServiceImpl::Abort(int64_t service_worker_registration_id,
const std::string& developer_id,
const std::string& unique_id,
AbortCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
if (!ValidateDeveloperId(developer_id) || !ValidateUniqueId(unique_id)) {
std::move(callback).Run(
blink::mojom::BackgroundFetchError::INVALID_ARGUMENT);
return;
}
background_fetch_context_->Abort(
BackgroundFetchRegistrationId(service_worker_registration_id, origin_,
developer_id, unique_id),
std::move(callback));
}
void BackgroundFetchServiceImpl::GetRegistration(
int64_t service_worker_registration_id,
const std::string& developer_id,
GetRegistrationCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
if (!ValidateDeveloperId(developer_id)) {
std::move(callback).Run(
blink::mojom::BackgroundFetchError::INVALID_ARGUMENT,
base::nullopt /* registration */);
return;
}
background_fetch_context_->GetRegistration(service_worker_registration_id,
origin_, developer_id,
std::move(callback));
}
void BackgroundFetchServiceImpl::GetDeveloperIds(
int64_t service_worker_registration_id,
GetDeveloperIdsCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
background_fetch_context_->GetDeveloperIdsForServiceWorker(
service_worker_registration_id, origin_, std::move(callback));
}
void BackgroundFetchServiceImpl::AddRegistrationObserver(
const std::string& unique_id,
blink::mojom::BackgroundFetchRegistrationObserverPtr observer) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
if (!ValidateUniqueId(unique_id))
return;
background_fetch_context_->AddRegistrationObserver(unique_id,
std::move(observer));
}
bool BackgroundFetchServiceImpl::ValidateDeveloperId(
const std::string& developer_id) {
if (developer_id.empty() || developer_id.size() > kMaxDeveloperIdLength) {
mojo::ReportBadMessage("Invalid developer_id");
return false;
}
return true;
}
bool BackgroundFetchServiceImpl::ValidateUniqueId(
const std::string& unique_id) {
if (!base::IsValidGUIDOutputString(unique_id)) {
mojo::ReportBadMessage("Invalid unique_id");
return false;
}
return true;
}
bool BackgroundFetchServiceImpl::ValidateRequests(
const std::vector<ServiceWorkerFetchRequest>& requests) {
if (requests.empty()) {
mojo::ReportBadMessage("Invalid requests");
return false;
}
return true;
}
bool BackgroundFetchServiceImpl::ValidateTitle(const std::string& title) {
if (title.empty() || title.size() > kMaxTitleLength) {
mojo::ReportBadMessage("Invalid title");
return false;
}
return true;
}
} // namespace content
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