forked from mirrors/gecko-dev
3fb6190ec6
Differential Revision: https://phabricator.services.mozilla.com/D39378 --HG-- extra : moz-landing-system : lando
531 lines
15 KiB
C++
531 lines
15 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 "PresentationRequest.h"
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#include "AvailabilityCollection.h"
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#include "ControllerConnectionCollection.h"
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#include "mozilla/BasePrincipal.h"
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#include "mozilla/dom/Navigator.h"
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#include "mozilla/dom/PresentationRequestBinding.h"
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#include "mozilla/dom/PresentationConnectionAvailableEvent.h"
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#include "mozilla/dom/Promise.h"
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#include "mozilla/Move.h"
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#include "mozIThirdPartyUtil.h"
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#include "nsContentSecurityManager.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsGlobalWindow.h"
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#include "mozilla/dom/Document.h"
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#include "nsIPresentationService.h"
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#include "nsIURI.h"
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#include "nsIUUIDGenerator.h"
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#include "nsNetUtil.h"
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#include "nsSandboxFlags.h"
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#include "nsServiceManagerUtils.h"
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#include "Presentation.h"
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#include "PresentationAvailability.h"
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#include "PresentationCallbacks.h"
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#include "PresentationLog.h"
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#include "PresentationTransportBuilderConstructor.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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NS_IMPL_ADDREF_INHERITED(PresentationRequest, DOMEventTargetHelper)
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NS_IMPL_RELEASE_INHERITED(PresentationRequest, DOMEventTargetHelper)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(PresentationRequest)
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NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
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static nsresult GetAbsoluteURL(const nsAString& aUrl, nsIURI* aBaseUri,
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Document* aDocument, nsAString& aAbsoluteUrl) {
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nsCOMPtr<nsIURI> uri;
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nsresult rv;
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if (aDocument) {
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rv = NS_NewURI(getter_AddRefs(uri), aUrl,
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aDocument->GetDocumentCharacterSet(), aBaseUri);
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} else {
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rv = NS_NewURI(getter_AddRefs(uri), aUrl, nullptr, aBaseUri);
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}
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if (NS_FAILED(rv)) {
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return rv;
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}
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nsAutoCString spec;
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uri->GetSpec(spec);
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aAbsoluteUrl = NS_ConvertUTF8toUTF16(spec);
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return NS_OK;
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}
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/* static */
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already_AddRefed<PresentationRequest> PresentationRequest::Constructor(
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const GlobalObject& aGlobal, const nsAString& aUrl, ErrorResult& aRv) {
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Sequence<nsString> urls;
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urls.AppendElement(aUrl, fallible);
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return Constructor(aGlobal, urls, aRv);
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}
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/* static */
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already_AddRefed<PresentationRequest> PresentationRequest::Constructor(
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const GlobalObject& aGlobal, const Sequence<nsString>& aUrls,
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ErrorResult& aRv) {
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nsCOMPtr<nsPIDOMWindowInner> window =
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do_QueryInterface(aGlobal.GetAsSupports());
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if (!window) {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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return nullptr;
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}
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if (aUrls.IsEmpty()) {
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aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
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return nullptr;
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}
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// Resolve relative URL to absolute URL
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nsCOMPtr<nsIURI> baseUri = window->GetDocBaseURI();
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nsTArray<nsString> urls;
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for (const auto& url : aUrls) {
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nsAutoString absoluteUrl;
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nsresult rv =
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GetAbsoluteURL(url, baseUri, window->GetExtantDoc(), absoluteUrl);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
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return nullptr;
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}
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urls.AppendElement(absoluteUrl);
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}
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RefPtr<PresentationRequest> request =
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new PresentationRequest(window, std::move(urls));
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return NS_WARN_IF(!request->Init()) ? nullptr : request.forget();
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}
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PresentationRequest::PresentationRequest(nsPIDOMWindowInner* aWindow,
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nsTArray<nsString>&& aUrls)
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: DOMEventTargetHelper(aWindow), mUrls(std::move(aUrls)) {}
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PresentationRequest::~PresentationRequest() {}
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bool PresentationRequest::Init() { return true; }
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/* virtual */
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JSObject* PresentationRequest::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return PresentationRequest_Binding::Wrap(aCx, this, aGivenProto);
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}
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already_AddRefed<Promise> PresentationRequest::Start(ErrorResult& aRv) {
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return StartWithDevice(VoidString(), aRv);
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}
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already_AddRefed<Promise> PresentationRequest::StartWithDevice(
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const nsAString& aDeviceId, ErrorResult& aRv) {
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nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetOwner());
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if (NS_WARN_IF(!global)) {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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return nullptr;
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}
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// Get the origin.
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nsAutoString origin;
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nsresult rv = nsContentUtils::GetUTFOrigin(global->PrincipalOrNull(), origin);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aRv.Throw(rv);
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return nullptr;
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}
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nsCOMPtr<Document> doc = GetOwner()->GetExtantDoc();
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if (NS_WARN_IF(!doc)) {
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aRv.Throw(NS_ERROR_FAILURE);
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return nullptr;
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}
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RefPtr<Promise> promise = Promise::Create(global, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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if (nsContentUtils::ShouldResistFingerprinting()) {
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promise->MaybeReject(NS_ERROR_DOM_SECURITY_ERR);
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return promise.forget();
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}
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if (IsProhibitMixedSecurityContexts(doc) && !IsAllURLAuthenticated()) {
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promise->MaybeReject(NS_ERROR_DOM_SECURITY_ERR);
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return promise.forget();
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}
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if (doc->GetSandboxFlags() & SANDBOXED_PRESENTATION) {
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promise->MaybeReject(NS_ERROR_DOM_SECURITY_ERR);
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return promise.forget();
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}
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RefPtr<Navigator> navigator =
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nsGlobalWindowInner::Cast(GetOwner())->Navigator();
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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RefPtr<Presentation> presentation = navigator->GetPresentation(aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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if (presentation->IsStartSessionUnsettled()) {
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promise->MaybeReject(NS_ERROR_DOM_OPERATION_ERR);
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return promise.forget();
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}
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// Generate a session ID.
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nsCOMPtr<nsIUUIDGenerator> uuidgen =
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do_GetService("@mozilla.org/uuid-generator;1");
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if (NS_WARN_IF(!uuidgen)) {
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promise->MaybeReject(NS_ERROR_DOM_OPERATION_ERR);
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return promise.forget();
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}
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nsID uuid;
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uuidgen->GenerateUUIDInPlace(&uuid);
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char buffer[NSID_LENGTH];
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uuid.ToProvidedString(buffer);
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nsAutoString id;
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CopyASCIItoUTF16(MakeSpan(buffer, NSID_LENGTH - 1), id);
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nsCOMPtr<nsIPresentationService> service =
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do_GetService(PRESENTATION_SERVICE_CONTRACTID);
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if (NS_WARN_IF(!service)) {
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promise->MaybeReject(NS_ERROR_DOM_OPERATION_ERR);
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return promise.forget();
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}
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presentation->SetStartSessionUnsettled(true);
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// Get xul:browser element in parent process or nsWindowRoot object in child
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// process. If it's in child process, the corresponding xul:browser element
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// will be obtained at PresentationRequestParent::DoRequest in its parent
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// process.
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nsCOMPtr<EventTarget> handler = GetOwner()->GetChromeEventHandler();
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nsCOMPtr<nsIPrincipal> principal = doc->NodePrincipal();
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nsCOMPtr<nsIPresentationServiceCallback> callback =
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new PresentationRequesterCallback(this, id, promise);
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nsCOMPtr<nsIPresentationTransportBuilderConstructor> constructor =
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PresentationTransportBuilderConstructor::Create();
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rv = service->StartSession(mUrls, id, origin, aDeviceId,
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GetOwner()->WindowID(), handler, principal,
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callback, constructor);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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promise->MaybeReject(NS_ERROR_DOM_OPERATION_ERR);
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NotifyPromiseSettled();
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}
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return promise.forget();
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}
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already_AddRefed<Promise> PresentationRequest::Reconnect(
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const nsAString& aPresentationId, ErrorResult& aRv) {
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nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetOwner());
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if (NS_WARN_IF(!global)) {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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return nullptr;
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}
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nsCOMPtr<Document> doc = GetOwner()->GetExtantDoc();
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if (NS_WARN_IF(!doc)) {
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aRv.Throw(NS_ERROR_FAILURE);
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return nullptr;
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}
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RefPtr<Promise> promise = Promise::Create(global, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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if (nsContentUtils::ShouldResistFingerprinting()) {
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promise->MaybeReject(NS_ERROR_DOM_SECURITY_ERR);
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return promise.forget();
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}
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if (IsProhibitMixedSecurityContexts(doc) && !IsAllURLAuthenticated()) {
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promise->MaybeReject(NS_ERROR_DOM_SECURITY_ERR);
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return promise.forget();
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}
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if (doc->GetSandboxFlags() & SANDBOXED_PRESENTATION) {
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promise->MaybeReject(NS_ERROR_DOM_SECURITY_ERR);
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return promise.forget();
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}
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nsString presentationId = nsString(aPresentationId);
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nsCOMPtr<nsIRunnable> r = NewRunnableMethod<nsString, RefPtr<Promise>>(
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"dom::PresentationRequest::FindOrCreatePresentationConnection", this,
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&PresentationRequest::FindOrCreatePresentationConnection, presentationId,
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promise);
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if (NS_WARN_IF(NS_FAILED(NS_DispatchToMainThread(r)))) {
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promise->MaybeReject(NS_ERROR_DOM_OPERATION_ERR);
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}
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return promise.forget();
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}
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void PresentationRequest::FindOrCreatePresentationConnection(
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const nsAString& aPresentationId, Promise* aPromise) {
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MOZ_ASSERT(aPromise);
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if (NS_WARN_IF(!GetOwner())) {
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aPromise->MaybeReject(NS_ERROR_DOM_OPERATION_ERR);
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return;
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}
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RefPtr<PresentationConnection> connection =
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ControllerConnectionCollection::GetSingleton()->FindConnection(
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GetOwner()->WindowID(), aPresentationId,
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nsIPresentationService::ROLE_CONTROLLER);
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if (connection) {
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nsAutoString url;
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connection->GetUrl(url);
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if (mUrls.Contains(url)) {
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switch (connection->State()) {
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case PresentationConnectionState::Closed:
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// We found the matched connection.
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break;
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case PresentationConnectionState::Connecting:
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case PresentationConnectionState::Connected:
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aPromise->MaybeResolve(connection);
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return;
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case PresentationConnectionState::Terminated:
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// A terminated connection cannot be reused.
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connection = nullptr;
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break;
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default:
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MOZ_CRASH("Unknown presentation session state.");
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return;
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}
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} else {
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connection = nullptr;
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}
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}
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nsCOMPtr<nsIPresentationService> service =
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do_GetService(PRESENTATION_SERVICE_CONTRACTID);
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if (NS_WARN_IF(!service)) {
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aPromise->MaybeReject(NS_ERROR_DOM_OPERATION_ERR);
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return;
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}
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nsCOMPtr<nsIPresentationServiceCallback> callback =
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new PresentationReconnectCallback(this, aPresentationId, aPromise,
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connection);
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nsresult rv = service->ReconnectSession(
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mUrls, aPresentationId, nsIPresentationService::ROLE_CONTROLLER,
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callback);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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aPromise->MaybeReject(NS_ERROR_DOM_OPERATION_ERR);
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}
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}
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already_AddRefed<Promise> PresentationRequest::GetAvailability(
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ErrorResult& aRv) {
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PRES_DEBUG("%s\n", __func__);
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nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(GetOwner());
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if (NS_WARN_IF(!global)) {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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return nullptr;
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}
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nsCOMPtr<Document> doc = GetOwner()->GetExtantDoc();
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if (NS_WARN_IF(!doc)) {
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aRv.Throw(NS_ERROR_FAILURE);
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return nullptr;
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}
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RefPtr<Promise> promise = Promise::Create(global, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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if (nsContentUtils::ShouldResistFingerprinting()) {
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promise->MaybeReject(NS_ERROR_DOM_SECURITY_ERR);
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return promise.forget();
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}
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if (IsProhibitMixedSecurityContexts(doc) && !IsAllURLAuthenticated()) {
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promise->MaybeReject(NS_ERROR_DOM_SECURITY_ERR);
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return promise.forget();
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}
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if (doc->GetSandboxFlags() & SANDBOXED_PRESENTATION) {
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promise->MaybeReject(NS_ERROR_DOM_SECURITY_ERR);
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return promise.forget();
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}
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FindOrCreatePresentationAvailability(promise);
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return promise.forget();
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}
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void PresentationRequest::FindOrCreatePresentationAvailability(
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RefPtr<Promise>& aPromise) {
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MOZ_ASSERT(aPromise);
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if (NS_WARN_IF(!GetOwner())) {
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aPromise->MaybeReject(NS_ERROR_DOM_OPERATION_ERR);
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return;
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}
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AvailabilityCollection* collection = AvailabilityCollection::GetSingleton();
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if (NS_WARN_IF(!collection)) {
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aPromise->MaybeReject(NS_ERROR_DOM_OPERATION_ERR);
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return;
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}
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RefPtr<PresentationAvailability> availability =
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collection->Find(GetOwner()->WindowID(), mUrls);
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if (!availability) {
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availability =
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PresentationAvailability::Create(GetOwner(), mUrls, aPromise);
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} else {
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PRES_DEBUG(">resolve with same object\n");
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// Fetching cached available devices is asynchronous in our implementation,
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// we need to ensure the promise is resolved in order.
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if (availability->IsCachedValueReady()) {
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aPromise->MaybeResolve(availability);
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return;
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}
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availability->EnqueuePromise(aPromise);
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}
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if (!availability) {
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aPromise->MaybeReject(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
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return;
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}
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}
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nsresult PresentationRequest::DispatchConnectionAvailableEvent(
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PresentationConnection* aConnection) {
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if (nsContentUtils::ShouldResistFingerprinting()) {
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return NS_OK;
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}
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PresentationConnectionAvailableEventInit init;
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init.mConnection = aConnection;
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RefPtr<PresentationConnectionAvailableEvent> event =
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PresentationConnectionAvailableEvent::Constructor(
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this, NS_LITERAL_STRING("connectionavailable"), init);
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if (NS_WARN_IF(!event)) {
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return NS_ERROR_FAILURE;
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}
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event->SetTrusted(true);
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RefPtr<AsyncEventDispatcher> asyncDispatcher =
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new AsyncEventDispatcher(this, event);
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return asyncDispatcher->PostDOMEvent();
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}
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void PresentationRequest::NotifyPromiseSettled() {
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PRES_DEBUG("%s\n", __func__);
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if (!GetOwner()) {
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return;
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}
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RefPtr<Navigator> navigator =
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nsGlobalWindowInner::Cast(GetOwner())->Navigator();
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if (!navigator) {
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return;
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}
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ErrorResult rv;
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RefPtr<Presentation> presentation = navigator->GetPresentation(rv);
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if (presentation) {
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presentation->SetStartSessionUnsettled(false);
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}
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}
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bool PresentationRequest::IsProhibitMixedSecurityContexts(Document* aDocument) {
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MOZ_ASSERT(aDocument);
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if (nsContentUtils::IsChromeDoc(aDocument)) {
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return true;
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}
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nsCOMPtr<Document> doc = aDocument;
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while (doc && !nsContentUtils::IsChromeDoc(doc)) {
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if (nsContentUtils::HttpsStateIsModern(doc)) {
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return true;
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}
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doc = doc->GetInProcessParentDocument();
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}
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return false;
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}
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bool PresentationRequest::IsPrioriAuthenticatedURL(const nsAString& aUrl) {
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nsCOMPtr<nsIURI> uri;
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if (NS_FAILED(NS_NewURI(getter_AddRefs(uri), aUrl))) {
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return false;
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}
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nsAutoCString scheme;
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nsresult rv = uri->GetScheme(scheme);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return false;
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}
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if (scheme.EqualsLiteral("data")) {
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return true;
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}
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nsAutoCString uriSpec;
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rv = uri->GetSpec(uriSpec);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return false;
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}
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if (uriSpec.EqualsLiteral("about:blank") ||
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uriSpec.EqualsLiteral("about:srcdoc")) {
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return true;
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}
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OriginAttributes attrs;
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nsCOMPtr<nsIPrincipal> principal =
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BasePrincipal::CreateContentPrincipal(uri, attrs);
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if (NS_WARN_IF(!principal)) {
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return false;
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}
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nsCOMPtr<nsIContentSecurityManager> csm =
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do_GetService(NS_CONTENTSECURITYMANAGER_CONTRACTID);
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if (NS_WARN_IF(!csm)) {
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return false;
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}
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bool isTrustworthyOrigin = false;
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csm->IsOriginPotentiallyTrustworthy(principal, &isTrustworthyOrigin);
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return isTrustworthyOrigin;
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}
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|
bool PresentationRequest::IsAllURLAuthenticated() {
|
|
for (const auto& url : mUrls) {
|
|
if (!IsPrioriAuthenticatedURL(url)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|