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-rw-r--r--dom/workers/ServiceWorkerUnregisterJob.cpp151
1 files changed, 151 insertions, 0 deletions
diff --git a/dom/workers/ServiceWorkerUnregisterJob.cpp b/dom/workers/ServiceWorkerUnregisterJob.cpp
new file mode 100644
index 000000000..8fd76b63d
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+++ b/dom/workers/ServiceWorkerUnregisterJob.cpp
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "ServiceWorkerUnregisterJob.h"
+
+#include "nsIPushService.h"
+
+namespace mozilla {
+namespace dom {
+namespace workers {
+
+class ServiceWorkerUnregisterJob::PushUnsubscribeCallback final :
+ public nsIUnsubscribeResultCallback
+{
+public:
+ NS_DECL_ISUPPORTS
+
+ explicit PushUnsubscribeCallback(ServiceWorkerUnregisterJob* aJob)
+ : mJob(aJob)
+ {
+ AssertIsOnMainThread();
+ }
+
+ NS_IMETHOD
+ OnUnsubscribe(nsresult aStatus, bool) override
+ {
+ // Warn if unsubscribing fails, but don't prevent the worker from
+ // unregistering.
+ Unused << NS_WARN_IF(NS_FAILED(aStatus));
+ mJob->Unregister();
+ return NS_OK;
+ }
+
+private:
+ ~PushUnsubscribeCallback()
+ {
+ }
+
+ RefPtr<ServiceWorkerUnregisterJob> mJob;
+};
+
+NS_IMPL_ISUPPORTS(ServiceWorkerUnregisterJob::PushUnsubscribeCallback,
+ nsIUnsubscribeResultCallback)
+
+ServiceWorkerUnregisterJob::ServiceWorkerUnregisterJob(nsIPrincipal* aPrincipal,
+ const nsACString& aScope,
+ bool aSendToParent)
+ : ServiceWorkerJob(Type::Unregister, aPrincipal, aScope, EmptyCString())
+ , mResult(false)
+ , mSendToParent(aSendToParent)
+{
+}
+
+bool
+ServiceWorkerUnregisterJob::GetResult() const
+{
+ AssertIsOnMainThread();
+ return mResult;
+}
+
+ServiceWorkerUnregisterJob::~ServiceWorkerUnregisterJob()
+{
+}
+
+void
+ServiceWorkerUnregisterJob::AsyncExecute()
+{
+ AssertIsOnMainThread();
+
+ if (Canceled()) {
+ Finish(NS_ERROR_DOM_ABORT_ERR);
+ return;
+ }
+
+ // Push API, section 5: "When a service worker registration is unregistered,
+ // any associated push subscription must be deactivated." To ensure the
+ // service worker registration isn't cleared as we're unregistering, we
+ // unsubscribe first.
+ nsCOMPtr<nsIPushService> pushService =
+ do_GetService("@mozilla.org/push/Service;1");
+ if (NS_WARN_IF(!pushService)) {
+ Unregister();
+ return;
+ }
+ nsCOMPtr<nsIUnsubscribeResultCallback> unsubscribeCallback =
+ new PushUnsubscribeCallback(this);
+ nsresult rv = pushService->Unsubscribe(NS_ConvertUTF8toUTF16(mScope),
+ mPrincipal, unsubscribeCallback);
+ if (NS_WARN_IF(NS_FAILED(rv))) {
+ Unregister();
+ }
+}
+
+void
+ServiceWorkerUnregisterJob::Unregister()
+{
+ AssertIsOnMainThread();
+
+ RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
+ if (Canceled() || !swm) {
+ Finish(NS_ERROR_DOM_ABORT_ERR);
+ return;
+ }
+
+ // Step 1 of the Unregister algorithm requires checking that the
+ // client origin matches the scope's origin. We perform this in
+ // registration->update() method directly since we don't have that
+ // client information available here.
+
+ // "Let registration be the result of running [[Get Registration]]
+ // algorithm passing scope as the argument."
+ RefPtr<ServiceWorkerRegistrationInfo> registration =
+ swm->GetRegistration(mPrincipal, mScope);
+ if (!registration) {
+ // "If registration is null, then, resolve promise with false."
+ Finish(NS_OK);
+ return;
+ }
+
+ // Note, we send the message to remove the registration from disk now even
+ // though we may only set the mPendingUninstall flag below. This is
+ // necessary to ensure the registration is removed if the controlled
+ // clients are closed by shutting down the browser. If the registration
+ // is resurrected by clearing mPendingUninstall then it should be saved
+ // to disk again.
+ if (mSendToParent && !registration->mPendingUninstall) {
+ swm->MaybeSendUnregister(mPrincipal, mScope);
+ }
+
+ // "Set registration's uninstalling flag."
+ registration->mPendingUninstall = true;
+
+ // "Resolve promise with true"
+ mResult = true;
+ InvokeResultCallbacks(NS_OK);
+
+ // "If no service worker client is using registration..."
+ if (!registration->IsControllingDocuments() && registration->IsIdle()) {
+ // "Invoke [[Clear Registration]]..."
+ swm->RemoveRegistration(registration);
+ }
+
+ Finish(NS_OK);
+}
+
+} // namespace workers
+} // namespace dom
+} // namespace mozilla