| // Copyright 2018 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. |
| |
| #ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_UPDATE_CHECKER_H_ |
| #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_UPDATE_CHECKER_H_ |
| |
| #include "base/callback.h" |
| #include "content/browser/service_worker/service_worker_database.h" |
| #include "content/browser/service_worker/service_worker_single_script_update_checker.h" |
| |
| namespace network { |
| class SharedURLLoaderFactory; |
| } |
| |
| namespace content { |
| |
| class ServiceWorkerVersion; |
| |
| class ServiceWorkerUpdateChecker { |
| public: |
| // Data of each compared script needed in remaining update process |
| struct ComparedScriptInfo { |
| ComparedScriptInfo(); |
| ComparedScriptInfo( |
| int64_t old_resource_id, |
| ServiceWorkerSingleScriptUpdateChecker::Result result, |
| std::unique_ptr<ServiceWorkerSingleScriptUpdateChecker::PausedState> |
| paused_state); |
| ComparedScriptInfo(ComparedScriptInfo&& other); |
| ComparedScriptInfo& operator=(ComparedScriptInfo&& other); |
| ~ComparedScriptInfo(); |
| |
| // Resource id of the compared script already in storage |
| int64_t old_resource_id; |
| |
| // Compare result of a single script |
| ServiceWorkerSingleScriptUpdateChecker::Result result; |
| |
| // This is only valid for script compared to be different. It consists of |
| // some state variables to continue the update process, including |
| // ServiceWorkerCacheWriter, and Mojo endpoints for downloading. |
| std::unique_ptr<ServiceWorkerSingleScriptUpdateChecker::PausedState> |
| paused_state; |
| }; |
| |
| using UpdateStatusCallback = base::OnceCallback<void(bool)>; |
| |
| ServiceWorkerUpdateChecker( |
| std::vector<ServiceWorkerDatabase::ResourceRecord> scripts_to_compare, |
| const GURL& main_script_url, |
| int64_t main_script_resource_id, |
| scoped_refptr<ServiceWorkerVersion> version_to_update, |
| scoped_refptr<network::SharedURLLoaderFactory> loader_factory); |
| ~ServiceWorkerUpdateChecker(); |
| |
| // |callback| is always triggered when Start() finishes. If the scripts are |
| // found to have any changes, the argument of |callback| is true and otherwise |
| // false. |
| void Start(UpdateStatusCallback callback); |
| |
| // This transfers the ownership of the check result to the caller. It only |
| // contains the information about scripts which have already been compared. |
| std::map<GURL, ComparedScriptInfo> TakeComparedResults(); |
| |
| void OnOneUpdateCheckFinished( |
| const GURL& script_url, |
| int64_t old_resource_id, |
| ServiceWorkerSingleScriptUpdateChecker::Result result, |
| std::unique_ptr<ServiceWorkerSingleScriptUpdateChecker::PausedState> |
| paused_state); |
| |
| private: |
| void CheckOneScript(const GURL& url, const int64_t resource_id); |
| |
| std::vector<ServiceWorkerDatabase::ResourceRecord> scripts_to_compare_; |
| size_t next_script_index_to_compare_ = 0; |
| std::map<GURL, ComparedScriptInfo> script_check_results_; |
| const GURL main_script_url_; |
| const int64_t main_script_resource_id_; |
| |
| // The version which triggered this update. |
| scoped_refptr<ServiceWorkerVersion> version_to_update_; |
| |
| std::unique_ptr<ServiceWorkerSingleScriptUpdateChecker> running_checker_; |
| |
| UpdateStatusCallback callback_; |
| |
| scoped_refptr<network::SharedURLLoaderFactory> loader_factory_; |
| base::WeakPtrFactory<ServiceWorkerUpdateChecker> weak_factory_; |
| |
| DISALLOW_IMPLICIT_CONSTRUCTORS(ServiceWorkerUpdateChecker); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_UPDATE_CHECKER_H_ |