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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.
#ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_INSTALLED_SCRIPT_LOADER_H_
#define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_INSTALLED_SCRIPT_LOADER_H_
#include "base/time/time.h"
#include "content/browser/service_worker/service_worker_installed_script_reader.h"
#include "content/browser/service_worker/url_loader_client_checker.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "mojo/public/cpp/system/data_pipe.h"
#include "mojo/public/cpp/system/data_pipe_drainer.h"
#include "services/network/public/mojom/url_loader.mojom.h"
namespace content {
class ServiceWorkerVersion;
// A URLLoader that loads an installed service worker script for a service
// worker that doesn't have a ServiceWorkerInstalledScriptsManager.
//
// Some cases where this happens:
// - a new (non-installed) service worker requests a script that it already
// installed, e.g., importScripts('a.js') multiple times.
// - a service worker that was new when it started and became installed while
// running requests an installed script, e.g., importScripts('a.js') after
// installation.
class ServiceWorkerInstalledScriptLoader
: public network::mojom::URLLoader,
public ServiceWorkerInstalledScriptReader::Client,
public mojo::DataPipeDrainer::Client {
public:
ServiceWorkerInstalledScriptLoader(
uint32_t options,
mojo::PendingRemote<network::mojom::URLLoaderClient> client,
mojo::Remote<storage::mojom::ServiceWorkerResourceReader> resource_reader,
scoped_refptr<ServiceWorkerVersion>
version_for_main_script_http_response_info,
const GURL& request_url);
ServiceWorkerInstalledScriptLoader(
const ServiceWorkerInstalledScriptLoader&) = delete;
ServiceWorkerInstalledScriptLoader& operator=(
const ServiceWorkerInstalledScriptLoader&) = delete;
~ServiceWorkerInstalledScriptLoader() override;
// ServiceWorkerInstalledScriptReader::Client overrides:
void OnStarted(network::mojom::URLResponseHeadPtr response_head,
std::optional<mojo_base::BigBuffer> metadata,
mojo::ScopedDataPipeConsumerHandle body_handle,
mojo::ScopedDataPipeConsumerHandle meta_data_handle) override;
void OnFinished(
ServiceWorkerInstalledScriptReader::FinishedReason reason) override;
// network::mojom::URLLoader overrides:
void FollowRedirect(
const std::vector<std::string>& removed_headers,
const net::HttpRequestHeaders& modified_headers,
const net::HttpRequestHeaders& modified_cors_exempt_headers,
const std::optional<GURL>& new_url) override;
void SetPriority(net::RequestPriority priority,
int32_t intra_priority_value) override;
private:
// mojo::DataPipeDrainer::Client overrides:
// These just do nothing.
void OnDataAvailable(base::span<const uint8_t> data) override {}
void OnDataComplete() override {}
URLLoaderClientCheckedRemote client_;
scoped_refptr<ServiceWorkerVersion>
version_for_main_script_http_response_info_;
base::TimeTicks request_start_time_;
std::unique_ptr<ServiceWorkerInstalledScriptReader> reader_;
std::string encoding_;
uint64_t body_size_ = 0;
std::unique_ptr<mojo::DataPipeDrainer> metadata_drainer_;
};
} // namespace content
#endif // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_INSTALLED_SCRIPT_LOADER_H_
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