| // Copyright 2016 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 "extensions/browser/extension_service_worker_message_filter.h" |
| |
| #include "content/public/browser/service_worker_context.h" |
| #include "extensions/browser/bad_message.h" |
| #include "extensions/browser/extension_function_dispatcher.h" |
| #include "extensions/common/extension_messages.h" |
| |
| namespace extensions { |
| |
| ExtensionServiceWorkerMessageFilter::ExtensionServiceWorkerMessageFilter( |
| int render_process_id, |
| content::BrowserContext* context, |
| content::ServiceWorkerContext* service_worker_context) |
| : content::BrowserMessageFilter(ExtensionWorkerMsgStart), |
| render_process_id_(render_process_id), |
| service_worker_context_(service_worker_context), |
| dispatcher_(new ExtensionFunctionDispatcher(context)) {} |
| |
| ExtensionServiceWorkerMessageFilter::~ExtensionServiceWorkerMessageFilter() { |
| DCHECK_CURRENTLY_ON(content::BrowserThread::IO); |
| } |
| |
| void ExtensionServiceWorkerMessageFilter::OverrideThreadForMessage( |
| const IPC::Message& message, |
| content::BrowserThread::ID* thread) { |
| if (message.type() == ExtensionHostMsg_RequestWorker::ID) { |
| *thread = content::BrowserThread::UI; |
| } |
| } |
| |
| bool ExtensionServiceWorkerMessageFilter::OnMessageReceived( |
| const IPC::Message& message) { |
| bool handled = true; |
| IPC_BEGIN_MESSAGE_MAP(ExtensionServiceWorkerMessageFilter, message) |
| IPC_MESSAGE_HANDLER(ExtensionHostMsg_RequestWorker, OnRequestWorker) |
| IPC_MESSAGE_HANDLER(ExtensionHostMsg_IncrementServiceWorkerActivity, |
| OnIncrementServiceWorkerActivity) |
| IPC_MESSAGE_HANDLER(ExtensionHostMsg_DecrementServiceWorkerActivity, |
| OnDecrementServiceWorkerActivity) |
| IPC_MESSAGE_UNHANDLED(handled = false) |
| IPC_END_MESSAGE_MAP() |
| return handled; |
| } |
| |
| void ExtensionServiceWorkerMessageFilter::OnRequestWorker( |
| const ExtensionHostMsg_Request_Params& params) { |
| DCHECK_CURRENTLY_ON(content::BrowserThread::UI); |
| dispatcher_->Dispatch(params, nullptr, render_process_id_); |
| } |
| |
| void ExtensionServiceWorkerMessageFilter::OnIncrementServiceWorkerActivity( |
| int64_t service_worker_version_id, |
| const std::string& request_uuid) { |
| DCHECK_CURRENTLY_ON(content::BrowserThread::IO); |
| // The worker might have already stopped before we got here, so the increment |
| // below might fail legitimately. Therefore, we do not send bad_message to the |
| // worker even if it fails. |
| service_worker_context_->StartingExternalRequest(service_worker_version_id, |
| request_uuid); |
| } |
| |
| void ExtensionServiceWorkerMessageFilter::OnDecrementServiceWorkerActivity( |
| int64_t service_worker_version_id, |
| const std::string& request_uuid) { |
| DCHECK_CURRENTLY_ON(content::BrowserThread::IO); |
| bool status = service_worker_context_->FinishedExternalRequest( |
| service_worker_version_id, request_uuid); |
| if (!status) { |
| bad_message::ReceivedBadMessage( |
| this, bad_message::ESWMF_INVALID_DECREMENT_ACTIVITY); |
| } |
| } |
| |
| } // namespace extensions |