/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim:set ts=2 sw=2 sts=2 et cindent: */ /* 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 "Presentation.h" #include <ctype.h> #include "mozilla/dom/PresentationBinding.h" #include "mozilla/dom/Promise.h" #include "nsContentUtils.h" #include "nsCycleCollectionParticipant.h" #include "nsIDocShell.h" #include "nsIPresentationService.h" #include "nsIScriptSecurityManager.h" #include "nsJSUtils.h" #include "nsNetUtil.h" #include "nsPIDOMWindow.h" #include "nsSandboxFlags.h" #include "nsServiceManagerUtils.h" #include "PresentationReceiver.h" namespace mozilla { namespace dom { NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(Presentation, mWindow, mDefaultRequest, mReceiver) NS_IMPL_CYCLE_COLLECTING_ADDREF(Presentation) NS_IMPL_CYCLE_COLLECTING_RELEASE(Presentation) NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Presentation) NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY NS_INTERFACE_MAP_ENTRY(nsISupports) NS_INTERFACE_MAP_END /* static */ already_AddRefed<Presentation> Presentation::Create(nsPIDOMWindowInner* aWindow) { RefPtr<Presentation> presentation = new Presentation(aWindow); return presentation.forget(); } Presentation::Presentation(nsPIDOMWindowInner* aWindow) : mWindow(aWindow) { } Presentation::~Presentation() { } /* virtual */ JSObject* Presentation::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) { return PresentationBinding::Wrap(aCx, this, aGivenProto); } void Presentation::SetDefaultRequest(PresentationRequest* aRequest) { nsCOMPtr<nsIDocument> doc = mWindow ? mWindow->GetExtantDoc() : nullptr; if (NS_WARN_IF(!doc)) { return; } if (doc->GetSandboxFlags() & SANDBOXED_PRESENTATION) { return; } mDefaultRequest = aRequest; } already_AddRefed<PresentationRequest> Presentation::GetDefaultRequest() const { RefPtr<PresentationRequest> request = mDefaultRequest; return request.forget(); } already_AddRefed<PresentationReceiver> Presentation::GetReceiver() { // return the same receiver if already created if (mReceiver) { RefPtr<PresentationReceiver> receiver = mReceiver; return receiver.forget(); } if (!HasReceiverSupport() || !IsInPresentedContent()) { return nullptr; } mReceiver = PresentationReceiver::Create(mWindow); if (NS_WARN_IF(!mReceiver)) { MOZ_ASSERT(mReceiver); return nullptr; } RefPtr<PresentationReceiver> receiver = mReceiver; return receiver.forget(); } void Presentation::SetStartSessionUnsettled(bool aIsUnsettled) { mStartSessionUnsettled = aIsUnsettled; } bool Presentation::IsStartSessionUnsettled() const { return mStartSessionUnsettled; } bool Presentation::HasReceiverSupport() const { if (!mWindow) { return false; } // Grant access to browser receiving pages and their same-origin iframes. (App // pages should be controlled by "presentation" permission in app manifests.) nsCOMPtr<nsIDocShell> docShell = mWindow->GetDocShell(); if (!docShell) { return false; } if (!Preferences::GetBool("dom.presentation.testing.simulate-receiver") && !docShell->GetIsInMozBrowserOrApp() && !docShell->GetIsTopLevelContentDocShell()) { return false; } nsAutoString presentationURL; nsContentUtils::GetPresentationURL(docShell, presentationURL); if (presentationURL.IsEmpty()) { return false; } nsCOMPtr<nsIScriptSecurityManager> securityManager = nsContentUtils::GetSecurityManager(); if (!securityManager) { return false; } nsCOMPtr<nsIURI> presentationURI; nsresult rv = NS_NewURI(getter_AddRefs(presentationURI), presentationURL); if (NS_FAILED(rv)) { return false; } nsCOMPtr<nsIURI> docURI = mWindow->GetDocumentURI(); return NS_SUCCEEDED(securityManager->CheckSameOriginURI(presentationURI, docURI, false)); } bool Presentation::IsInPresentedContent() const { if (!mWindow) { return false; } nsCOMPtr<nsIDocShell> docShell = mWindow->GetDocShell(); MOZ_ASSERT(docShell); nsAutoString presentationURL; nsContentUtils::GetPresentationURL(docShell, presentationURL); return !presentationURL.IsEmpty(); } } // namespace dom } // namespace mozilla