forked from mirrors/gecko-dev
130 lines
4.3 KiB
C++
130 lines
4.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "StorageAccessPermissionRequest.h"
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#include "nsGlobalWindowInner.h"
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#include "mozilla/StaticPrefs_dom.h"
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#include <cstdlib>
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_INHERITED(StorageAccessPermissionRequest,
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ContentPermissionRequestBase)
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NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED_0(StorageAccessPermissionRequest,
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ContentPermissionRequestBase)
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StorageAccessPermissionRequest::StorageAccessPermissionRequest(
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nsPIDOMWindowInner* aWindow, nsIPrincipal* aNodePrincipal,
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AllowCallback&& aAllowCallback, CancelCallback&& aCancelCallback)
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: ContentPermissionRequestBase(aNodePrincipal, aWindow,
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"dom.storage_access"_ns,
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"storage-access"_ns),
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mAllowCallback(std::move(aAllowCallback)),
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mCancelCallback(std::move(aCancelCallback)),
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mCallbackCalled(false) {
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mPermissionRequests.AppendElement(
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PermissionRequest(mType, nsTArray<nsString>()));
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}
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NS_IMETHODIMP
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StorageAccessPermissionRequest::Cancel() {
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if (!mCallbackCalled) {
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mCallbackCalled = true;
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mCancelCallback();
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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StorageAccessPermissionRequest::Allow(JS::HandleValue aChoices) {
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nsTArray<PermissionChoice> choices;
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nsresult rv = TranslateChoices(aChoices, mPermissionRequests, choices);
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if (NS_FAILED(rv)) {
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return rv;
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}
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// There is no support to allow grants automatically from the prompting code
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// path.
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if (!mCallbackCalled) {
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mCallbackCalled = true;
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if (choices.Length() == 1 && choices[0].choice().EqualsLiteral("allow")) {
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mAllowCallback();
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}
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}
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return NS_OK;
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}
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RefPtr<StorageAccessPermissionRequest::AutoGrantDelayPromise>
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StorageAccessPermissionRequest::MaybeDelayAutomaticGrants() {
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RefPtr<AutoGrantDelayPromise::Private> p =
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new AutoGrantDelayPromise::Private(__func__);
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unsigned simulatedDelay = CalculateSimulatedDelay();
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if (simulatedDelay) {
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nsCOMPtr<nsITimer> timer;
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RefPtr<AutoGrantDelayPromise::Private> promise = p;
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nsresult rv = NS_NewTimerWithFuncCallback(
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getter_AddRefs(timer),
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[](nsITimer* aTimer, void* aClosure) -> void {
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auto* promise =
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static_cast<AutoGrantDelayPromise::Private*>(aClosure);
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promise->Resolve(true, __func__);
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NS_RELEASE(aTimer);
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NS_RELEASE(promise);
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},
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promise, simulatedDelay, nsITimer::TYPE_ONE_SHOT,
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"DelayedAllowAutoGrantCallback");
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if (NS_WARN_IF(NS_FAILED(rv))) {
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p->Reject(false, __func__);
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} else {
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// Leak the references here! We'll release them inside the callback.
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Unused << timer.forget();
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Unused << promise.forget();
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}
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} else {
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p->Resolve(false, __func__);
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}
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return p;
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}
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already_AddRefed<StorageAccessPermissionRequest>
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StorageAccessPermissionRequest::Create(nsPIDOMWindowInner* aWindow,
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AllowCallback&& aAllowCallback,
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CancelCallback&& aCancelCallback) {
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if (!aWindow) {
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return nullptr;
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}
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nsGlobalWindowInner* win = nsGlobalWindowInner::Cast(aWindow);
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if (!win->GetPrincipal()) {
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return nullptr;
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}
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RefPtr<StorageAccessPermissionRequest> request =
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new StorageAccessPermissionRequest(aWindow, win->GetPrincipal(),
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std::move(aAllowCallback),
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std::move(aCancelCallback));
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return request.forget();
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}
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unsigned StorageAccessPermissionRequest::CalculateSimulatedDelay() {
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if (!StaticPrefs::dom_storage_access_auto_grants_delayed()) {
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return 0;
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}
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// Generate a random time value that is at least 0 and and most 3 seconds.
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std::srand(static_cast<unsigned>(PR_Now()));
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const unsigned kMin = 0;
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const unsigned kMax = 3000;
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const unsigned random = std::abs(std::rand());
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return kMin + random % (kMax - kMin);
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}
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} // namespace dom
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} // namespace mozilla
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