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// Copyright 2019 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/background_fetch/background_fetch_registration_service_impl.h"
#include <memory>
#include <optional>
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/memory/ptr_util.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/background_fetch/background_fetch_registration_notifier.h"
#include "content/browser/background_fetch/background_fetch_request_match_params.h"
#include "content/browser/bad_message.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_process_host.h"
#include "mojo/public/cpp/bindings/self_owned_receiver.h"
#include "third_party/blink/public/mojom/fetch/fetch_api_request.mojom.h"
namespace content {
namespace {
// Maximum length of a developer-provided title for a Background Fetch.
constexpr size_t kMaxTitleLength = 1024 * 1024;
} // namespace
// static
mojo::PendingRemote<blink::mojom::BackgroundFetchRegistrationService>
BackgroundFetchRegistrationServiceImpl::CreateInterfaceInfo(
BackgroundFetchRegistrationId registration_id,
base::WeakPtr<BackgroundFetchContext> background_fetch_context) {
DCHECK(background_fetch_context);
mojo::PendingRemote<blink::mojom::BackgroundFetchRegistrationService>
mojo_interface;
mojo::MakeSelfOwnedReceiver(
base::WrapUnique(new BackgroundFetchRegistrationServiceImpl(
std::move(registration_id), std::move(background_fetch_context))),
mojo_interface.InitWithNewPipeAndPassReceiver());
return mojo_interface;
}
BackgroundFetchRegistrationServiceImpl::BackgroundFetchRegistrationServiceImpl(
BackgroundFetchRegistrationId registration_id,
base::WeakPtr<BackgroundFetchContext> background_fetch_context)
: registration_id_(std::move(registration_id)),
background_fetch_context_(std::move(background_fetch_context)) {
DCHECK(background_fetch_context_);
DCHECK(!registration_id_.is_null());
}
BackgroundFetchRegistrationServiceImpl::
~BackgroundFetchRegistrationServiceImpl() = default;
void BackgroundFetchRegistrationServiceImpl::MatchRequests(
blink::mojom::FetchAPIRequestPtr request_to_match,
blink::mojom::CacheQueryOptionsPtr cache_query_options,
bool match_all,
MatchRequestsCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (!background_fetch_context_) {
// Return without running the callback because this case happens only when
// the browser is shutting down.
return;
}
// Create BackgroundFetchMatchRequestMatchParams.
auto match_params = std::make_unique<BackgroundFetchRequestMatchParams>(
std::move(request_to_match), std::move(cache_query_options), match_all);
background_fetch_context_->MatchRequests(
registration_id_, std::move(match_params), std::move(callback));
}
void BackgroundFetchRegistrationServiceImpl::UpdateUI(
const std::optional<std::string>& title,
const SkBitmap& icon,
UpdateUICallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (!background_fetch_context_) {
// Return without running the callback because this case happens only when
// the browser is shutting down.
return;
}
if (title && !ValidateTitle(*title)) {
std::move(callback).Run(
blink::mojom::BackgroundFetchError::INVALID_ARGUMENT);
return;
}
// Wrap the icon in an optional for clarity.
auto optional_icon =
icon.isNull() ? std::nullopt : std::optional<SkBitmap>(icon);
background_fetch_context_->UpdateUI(registration_id_, title, optional_icon,
std::move(callback));
}
void BackgroundFetchRegistrationServiceImpl::Abort(AbortCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (!background_fetch_context_) {
// Return without running the callback because this case happens only when
// the browser is shutting down.
return;
}
background_fetch_context_->Abort(registration_id_, std::move(callback));
}
void BackgroundFetchRegistrationServiceImpl::AddRegistrationObserver(
mojo::PendingRemote<blink::mojom::BackgroundFetchRegistrationObserver>
observer) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (!background_fetch_context_)
return;
background_fetch_context_->AddRegistrationObserver(
registration_id_.unique_id(), std::move(observer));
}
bool BackgroundFetchRegistrationServiceImpl::ValidateTitle(
const std::string& title) {
if (title.empty() || title.size() > kMaxTitleLength) {
receiver_.ReportBadMessage("Invalid title");
return false;
}
return true;
}
} // namespace content
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