Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 120 insertions, 0 deletions

diff --git a/dom/serviceworkers/ServiceWorkerInterceptController.cpp b/dom/serviceworkers/ServiceWorkerInterceptController.cpp
new file mode 100644
index 0000000000..d02bcea757
--- /dev/null
+++ b/dom/serviceworkers/ServiceWorkerInterceptController.cpp
@@ -0,0 +1,120 @@
+/* -*- 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 "ServiceWorkerInterceptController.h"
+
+#include "mozilla/BasePrincipal.h"
+#include "mozilla/StaticPrefs_dom.h"
+#include "mozilla/StorageAccess.h"
+#include "nsCOMPtr.h"
+#include "nsContentUtils.h"
+#include "nsIChannel.h"
+#include "ServiceWorkerManager.h"
+#include "nsIPrincipal.h"
+
+namespace mozilla {
+namespace dom {
+
+NS_IMPL_ISUPPORTS(ServiceWorkerInterceptController,
+                  nsINetworkInterceptController)
+
+NS_IMETHODIMP
+ServiceWorkerInterceptController::ShouldPrepareForIntercept(
+    nsIURI* aURI, nsIChannel* aChannel, bool* aShouldIntercept) {
+  *aShouldIntercept = false;
+
+  nsCOMPtr<nsILoadInfo> loadInfo = aChannel->LoadInfo();
+
+  RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
+
+  // For subresource requests we base our decision solely on the client's
+  // controller value.  Any settings that would have blocked service worker
+  // access should have been set before the initial navigation created the
+  // window.
+  if (!nsContentUtils::IsNonSubresourceRequest(aChannel)) {
+    const Maybe<ServiceWorkerDescriptor>& controller =
+        loadInfo->GetController();
+    // For child intercept, only checking the loadInfo controller existence.
+    if (!ServiceWorkerParentInterceptEnabled()) {
+      *aShouldIntercept = controller.isSome();
+      return NS_OK;
+    }
+
+    // If the controller doesn't handle fetch events, return false
+    if (controller.isSome()) {
+      *aShouldIntercept = controller.ref().HandlesFetch();
+
+      // The service worker has no fetch event handler, try to schedule a
+      // soft-update through ServiceWorkerRegistrationInfo.
+      // Get ServiceWorkerRegistrationInfo by the ServiceWorkerInfo's principal
+      // and scope
+      if (!*aShouldIntercept && swm) {
+        nsCOMPtr<nsIPrincipal> principal =
+            controller.ref().GetPrincipal().unwrap();
+        RefPtr<ServiceWorkerRegistrationInfo> registration =
+            swm->GetRegistration(principal, controller.ref().Scope());
+        // Could not get ServiceWorkerRegistration here if unregister is
+        // executed before getting here.
+        if (NS_WARN_IF(!registration)) {
+          return NS_OK;
+        }
+        registration->MaybeScheduleTimeCheckAndUpdate();
+      }
+    } else {
+      *aShouldIntercept = false;
+    }
+    return NS_OK;
+  }
+
+  nsCOMPtr<nsIPrincipal> principal = BasePrincipal::CreateContentPrincipal(
+      aURI, loadInfo->GetOriginAttributes());
+
+  // First check with the ServiceWorkerManager for a matching service worker.
+  if (!swm || !swm->IsAvailable(principal, aURI, aChannel)) {
+    return NS_OK;
+  }
+
+  // Check if we're in a secure context, unless service worker testing is
+  // enabled.
+  if (!nsContentUtils::ComputeIsSecureContext(aChannel) &&
+      !StaticPrefs::dom_serviceWorkers_testing_enabled()) {
+    return NS_OK;
+  }
+
+  // Then check to see if we are allowed to control the window.
+  // It is important to check for the availability of the service worker first
+  // to avoid showing warnings about the use of third-party cookies in the UI
+  // unnecessarily when no service worker is being accessed.
+  if (StorageAllowedForChannel(aChannel) != StorageAccess::eAllow) {
+    return NS_OK;
+  }
+
+  *aShouldIntercept = true;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+ServiceWorkerInterceptController::ChannelIntercepted(
+    nsIInterceptedChannel* aChannel) {
+  // Note, do not cancel the interception here.  The caller will try to
+  // ResetInterception() on error.
+
+  RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
+  if (!swm) {
+    return NS_ERROR_FAILURE;
+  }
+
+  ErrorResult error;
+  swm->DispatchFetchEvent(aChannel, error);
+  if (NS_WARN_IF(error.Failed())) {
+    return error.StealNSResult();
+  }
+
+  return NS_OK;
+}
+
+}  // namespace dom
+}  // namespace mozilla