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// 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 "components/download/internal/background_service/in_memory_download_driver.h"
#include "base/task/single_thread_task_runner.h"
#include "components/download/internal/background_service/in_memory_download.h"
#include "components/download/public/background_service/url_loader_factory_getter.h"
#include "services/network/public/cpp/resource_request_body.h"
namespace download {
namespace {
DriverEntry::State ToDriverEntryState(InMemoryDownload::State state) {
switch (state) {
case InMemoryDownload::State::INITIAL:
case InMemoryDownload::State::RETRIEVE_URL_LOADER_FACTIORY:
case InMemoryDownload::State::RETRIEVE_BLOB_CONTEXT:
case InMemoryDownload::State::IN_PROGRESS:
return DriverEntry::State::IN_PROGRESS;
case InMemoryDownload::State::FAILED:
return DriverEntry::State::INTERRUPTED;
case InMemoryDownload::State::COMPLETE:
return DriverEntry::State::COMPLETE;
}
NOTREACHED();
}
// Helper function to create download driver entry based on in memory download.
DriverEntry CreateDriverEntry(const InMemoryDownload& download) {
DriverEntry entry;
entry.guid = download.guid();
entry.state = ToDriverEntryState(download.state());
entry.paused = download.paused();
entry.done = entry.state == DriverEntry::State::COMPLETE ||
entry.state == DriverEntry::State::CANCELLED;
entry.bytes_downloaded = download.bytes_downloaded();
entry.url_chain = download.url_chain();
entry.response_headers = download.response_headers();
if (entry.response_headers) {
entry.expected_total_size = entry.response_headers->GetContentLength();
}
// Currently incognito mode network backend can't resume in the middle.
entry.can_resume = false;
if (download.state() == InMemoryDownload::State::COMPLETE) {
auto blob_handle = download.ResultAsBlob();
if (blob_handle) {
entry.blob_handle = std::optional<storage::BlobDataHandle>(*blob_handle);
}
}
return entry;
}
} // namespace
InMemoryDownloadFactory::InMemoryDownloadFactory(
scoped_refptr<base::SingleThreadTaskRunner> io_task_runner)
: io_task_runner_(io_task_runner) {}
InMemoryDownloadFactory::~InMemoryDownloadFactory() = default;
std::unique_ptr<InMemoryDownload> InMemoryDownloadFactory::Create(
const std::string& guid,
const RequestParams& request_params,
scoped_refptr<network::ResourceRequestBody> request_body,
const net::NetworkTrafficAnnotationTag& traffic_annotation,
InMemoryDownload::Delegate* delegate) {
return std::make_unique<InMemoryDownloadImpl>(
guid, request_params, std::move(request_body), traffic_annotation,
delegate, io_task_runner_);
}
InMemoryDownloadDriver::InMemoryDownloadDriver(
std::unique_ptr<InMemoryDownload::Factory> download_factory,
BlobContextGetterFactoryPtr blob_context_getter_factory,
URLLoaderFactoryGetterPtr url_loader_factory_getter)
: client_(nullptr),
download_factory_(std::move(download_factory)),
blob_context_getter_factory_(std::move(blob_context_getter_factory)),
url_loader_factory_getter_(std::move(url_loader_factory_getter)) {}
InMemoryDownloadDriver::~InMemoryDownloadDriver() = default;
void InMemoryDownloadDriver::Initialize(DownloadDriver::Client* client) {
DCHECK(!client_) << "Initialize can be called only once.";
client_ = client;
DCHECK(client_);
client_->OnDriverReady(true);
}
void InMemoryDownloadDriver::HardRecover() {
client_->OnDriverHardRecoverComplete(true);
}
bool InMemoryDownloadDriver::IsReady() const {
return true;
}
void InMemoryDownloadDriver::Start(
const RequestParams& request_params,
const std::string& guid,
const base::FilePath& file_path,
scoped_refptr<network::ResourceRequestBody> request_body,
const net::NetworkTrafficAnnotationTag& traffic_annotation) {
std::unique_ptr<InMemoryDownload> download = download_factory_->Create(
guid, request_params, std::move(request_body), traffic_annotation, this);
InMemoryDownload* download_ptr = download.get();
DCHECK(downloads_.find(guid) == downloads_.end()) << "Existing GUID found.";
downloads_.emplace(guid, std::move(download));
download_ptr->Start();
}
void InMemoryDownloadDriver::Remove(const std::string& guid, bool remove_file) {
downloads_.erase(guid);
}
void InMemoryDownloadDriver::Pause(const std::string& guid) {
auto it = downloads_.find(guid);
if (it != downloads_.end()) {
it->second->Pause();
}
}
void InMemoryDownloadDriver::Resume(const std::string& guid) {
auto it = downloads_.find(guid);
if (it != downloads_.end()) {
it->second->Resume();
}
}
std::optional<DriverEntry> InMemoryDownloadDriver::Find(
const std::string& guid) {
std::optional<DriverEntry> entry;
auto it = downloads_.find(guid);
if (it != downloads_.end()) {
entry = CreateDriverEntry(*it->second);
}
return entry;
}
std::set<std::string> InMemoryDownloadDriver::GetActiveDownloads() {
std::set<std::string> downloads;
for (const auto& it : downloads_) {
if (it.second->state() == InMemoryDownload::State::INITIAL ||
it.second->state() == InMemoryDownload::State::IN_PROGRESS) {
downloads.emplace(it.first);
}
}
return downloads;
}
size_t InMemoryDownloadDriver::EstimateMemoryUsage() const {
size_t memory_usage = 0u;
for (const auto& it : downloads_) {
memory_usage += it.second->EstimateMemoryUsage();
}
return memory_usage;
}
void InMemoryDownloadDriver::OnDownloadStarted(InMemoryDownload* download) {
DCHECK(client_);
client_->OnDownloadCreated(CreateDriverEntry(*download));
}
void InMemoryDownloadDriver::OnDownloadProgress(InMemoryDownload* download) {
DCHECK(client_);
client_->OnDownloadUpdated(CreateDriverEntry(*download));
}
void InMemoryDownloadDriver::OnDownloadComplete(InMemoryDownload* download) {
DCHECK(download);
DCHECK(client_);
DriverEntry entry = CreateDriverEntry(*download);
switch (download->state()) {
case InMemoryDownload::State::FAILED:
// URLFetcher retries for network failures.
client_->OnDownloadFailed(entry, FailureType::NOT_RECOVERABLE);
// Should immediately return in case |client_| removes |download| in
// OnDownloadFailed.
return;
case InMemoryDownload::State::COMPLETE:
client_->OnDownloadSucceeded(entry);
// Should immediately return in case |client_| removes |download| in
// OnDownloadSucceeded.
return;
case InMemoryDownload::State::INITIAL:
case InMemoryDownload::State::RETRIEVE_URL_LOADER_FACTIORY:
case InMemoryDownload::State::RETRIEVE_BLOB_CONTEXT:
case InMemoryDownload::State::IN_PROGRESS:
NOTREACHED();
}
}
void InMemoryDownloadDriver::OnUploadProgress(InMemoryDownload* download) {
DCHECK(download);
DCHECK(client_);
client_->OnUploadProgress(download->guid(), download->bytes_uploaded());
}
void InMemoryDownloadDriver::RetrieveBlobContextGetter(
BlobContextGetterCallback callback) {
blob_context_getter_factory_->RetrieveBlobContextGetter(std::move(callback));
}
void InMemoryDownloadDriver::RetrievedURLLoaderFactory(
URLLoaderFactoryGetterCallback callback) {
url_loader_factory_getter_->RetrieveURLLoaderFactory(std::move(callback));
}
} // namespace download
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