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gecko-dev
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gecko-dev/dom/base/Navigator.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/. */
// Needs to be first.
#include "base/basictypes.h"
#include "Navigator.h"
#include "nsIXULAppInfo.h"
#include "nsPluginArray.h"
#include "nsMimeTypeArray.h"
#include "mozilla/Components.h"
#include "mozilla/ContentBlocking.h"
#include "mozilla/ContentBlockingNotifier.h"
#include "mozilla/MemoryReporting.h"
#include "mozilla/dom/BodyExtractor.h"
#include "mozilla/dom/FetchBinding.h"
#include "mozilla/dom/File.h"
#include "Geolocation.h"
#include "nsIClassOfService.h"
#include "nsIHttpProtocolHandler.h"
#include "nsIContentPolicy.h"
#include "nsContentPolicyUtils.h"
#include "nsISupportsPriority.h"
#include "nsIWebProtocolHandlerRegistrar.h"
#include "nsCharSeparatedTokenizer.h"
#include "nsContentUtils.h"
#include "nsUnicharUtils.h"
#include "mozilla/Preferences.h"
#include "mozilla/StaticPrefs_dom.h"
#include "mozilla/StaticPrefs_media.h"
#include "mozilla/StaticPrefs_network.h"
#include "mozilla/StaticPrefs_pdfjs.h"
#include "mozilla/StaticPrefs_privacy.h"
#include "mozilla/StorageAccess.h"
#include "mozilla/Telemetry.h"
#include "BatteryManager.h"
#include "mozilla/dom/CredentialsContainer.h"
#include "mozilla/dom/Clipboard.h"
#include "mozilla/dom/FeaturePolicyUtils.h"
#include "mozilla/dom/GamepadServiceTest.h"
#include "mozilla/dom/MediaCapabilities.h"
#include "mozilla/dom/MediaSession.h"
#include "mozilla/dom/WakeLock.h"
#include "mozilla/dom/power/PowerManagerService.h"
#include "mozilla/dom/LockManager.h"
#include "mozilla/dom/MIDIAccessManager.h"
#include "mozilla/dom/MIDIOptionsBinding.h"
#include "mozilla/dom/Permissions.h"
#include "mozilla/dom/ServiceWorkerContainer.h"
#include "mozilla/dom/StorageManager.h"
#include "mozilla/dom/TCPSocket.h"
#include "mozilla/dom/URLSearchParams.h"
#include "mozilla/dom/VRDisplay.h"
#include "mozilla/dom/VRDisplayEvent.h"
#include "mozilla/dom/VRServiceTest.h"
#include "mozilla/dom/XRSystem.h"
#include "mozilla/dom/workerinternals/RuntimeService.h"
#include "mozilla/Hal.h"
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/StaticPtr.h"
#include "Connection.h"
#include "mozilla/dom/Event.h" // for Event
#include "nsGlobalWindow.h"
#include "nsIPermissionManager.h"
#include "nsMimeTypes.h"
#include "nsNetUtil.h"
#include "nsRFPService.h"
#include "nsStringStream.h"
#include "nsComponentManagerUtils.h"
#include "nsICookieManager.h"
#include "nsICookieService.h"
#include "nsIHttpChannel.h"
#ifdef ENABLE_WEBDRIVER
# include "nsIMarionette.h"
# include "nsIRemoteAgent.h"
#endif
#include "nsStreamUtils.h"
#include "WidgetUtils.h"
#include "nsIScriptError.h"
#include "ReferrerInfo.h"
#include "mozilla/PermissionDelegateHandler.h"
#include "nsIExternalProtocolHandler.h"
#include "BrowserChild.h"
#include "mozilla/ipc/URIUtils.h"
#include "mozilla/dom/MediaDevices.h"
#include "MediaManager.h"
#include "nsJSUtils.h"
#include "mozilla/dom/NavigatorBinding.h"
#include "mozilla/dom/Promise.h"
#include "nsIUploadChannel2.h"
#include "mozilla/dom/FormData.h"
#include "nsIDocShell.h"
#include "mozilla/dom/WorkerPrivate.h"
#include "mozilla/dom/WorkerRunnable.h"
#if defined(XP_WIN)
# include "mozilla/WindowsVersion.h"
#endif
#include "mozilla/EMEUtils.h"
#include "mozilla/DetailedPromise.h"
#include "mozilla/Unused.h"
#include "mozilla/webgpu/Instance.h"
#include "mozilla/dom/WindowGlobalChild.h"
#include "mozilla/intl/LocaleService.h"
namespace mozilla::dom {
static const nsLiteralCString kVibrationPermissionType = "vibration"_ns;
Navigator::Navigator(nsPIDOMWindowInner* aWindow) : mWindow(aWindow) {}
Navigator::~Navigator() { Invalidate(); }
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Navigator)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(Navigator)
NS_IMPL_CYCLE_COLLECTING_RELEASE(Navigator)
NS_IMPL_CYCLE_COLLECTION_CLASS(Navigator)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(Navigator)
tmp->Invalidate();
NS_IMPL_CYCLE_COLLECTION_UNLINK(mWindow)
NS_IMPL_CYCLE_COLLECTION_UNLINK(mSharePromise)
NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(Navigator)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mPlugins)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mPermissions)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mGeolocation)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mBatteryManager)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mBatteryPromise)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mConnection)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mStorageManager)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mCredentials)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMediaDevices)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mServiceWorkerContainer)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMediaCapabilities)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMediaSession)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mAddonManager)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mWebGpu)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mLocks)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mWindow)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMediaKeySystemAccessManager)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mGamepadServiceTest)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mVRGetDisplaysPromises)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mVRServiceTest)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSharePromise)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mXRSystem)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(Navigator)
void Navigator::Invalidate() {
// Don't clear mWindow here so we know we've got a non-null mWindow
// until we're unlinked.
mPlugins = nullptr;
mPermissions = nullptr;
mStorageManager = nullptr;
// If there is a page transition, make sure delete the geolocation object.
if (mGeolocation) {
mGeolocation->Shutdown();
mGeolocation = nullptr;
}
if (mBatteryManager) {
mBatteryManager->Shutdown();
mBatteryManager = nullptr;
}
mBatteryPromise = nullptr;
if (mConnection) {
mConnection->Shutdown();
mConnection = nullptr;
}
mMediaDevices = nullptr;
mServiceWorkerContainer = nullptr;
if (mMediaKeySystemAccessManager) {
mMediaKeySystemAccessManager->Shutdown();
mMediaKeySystemAccessManager = nullptr;
}
if (mGamepadServiceTest) {
mGamepadServiceTest->Shutdown();
mGamepadServiceTest = nullptr;
}
mVRGetDisplaysPromises.Clear();
if (mVRServiceTest) {
mVRServiceTest->Shutdown();
mVRServiceTest = nullptr;
}
if (mXRSystem) {
mXRSystem->Shutdown();
mXRSystem = nullptr;
}
mMediaCapabilities = nullptr;
if (mMediaSession) {
mMediaSession->Shutdown();
mMediaSession = nullptr;
}
mAddonManager = nullptr;
mWebGpu = nullptr;
if (mLocks) {
// Unloading a page does not immediately destruct the lock manager actor,
// but we want to abort the lock requests as soon as possible. Explicitly
// call Shutdown() to do that.
mLocks->Shutdown();
mLocks = nullptr;
}
mSharePromise = nullptr;
}
void Navigator::GetUserAgent(nsAString& aUserAgent, CallerType aCallerType,
ErrorResult& aRv) const {
nsCOMPtr<nsPIDOMWindowInner> window;
if (mWindow) {
window = mWindow;
nsIDocShell* docshell = window->GetDocShell();
nsString customUserAgent;
if (docshell) {
docshell->GetBrowsingContext()->GetCustomUserAgent(customUserAgent);
if (!customUserAgent.IsEmpty()) {
aUserAgent = customUserAgent;
return;
}
}
}
nsCOMPtr<Document> doc = mWindow->GetExtantDoc();
nsresult rv = GetUserAgent(window, doc ? doc->NodePrincipal() : nullptr,
aCallerType == CallerType::System, aUserAgent);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(rv);
}
}
void Navigator::GetAppCodeName(nsAString& aAppCodeName, ErrorResult& aRv) {
nsresult rv;
nsCOMPtr<nsIHttpProtocolHandler> service(
do_GetService(NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX "http", &rv));
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(rv);
return;
}
nsAutoCString appName;
rv = service->GetAppName(appName);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(rv);
return;
}
CopyASCIItoUTF16(appName, aAppCodeName);
}
void Navigator::GetAppVersion(nsAString& aAppVersion, CallerType aCallerType,
ErrorResult& aRv) const {
nsCOMPtr<Document> doc = mWindow->GetExtantDoc();
nsresult rv = GetAppVersion(
aAppVersion, doc ? doc->NodePrincipal() : nullptr,
/* aUsePrefOverriddenValue = */ aCallerType != CallerType::System);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(rv);
}
}
void Navigator::GetAppName(nsAString& aAppName, CallerType aCallerType) const {
nsCOMPtr<Document> doc = mWindow->GetExtantDoc();
AppName(aAppName, doc ? doc->NodePrincipal() : nullptr,
/* aUsePrefOverriddenValue = */ aCallerType != CallerType::System);
}
/**
* Returns the value of Accept-Languages (HTTP header) as a nsTArray of
* languages. The value is set in the preference by the user ("Content
* Languages").
*
* "en", "en-US" and "i-cherokee" and "" are valid languages tokens.
*
* If there is no valid language, the value of getWebExposedLocales is
* used to ensure that locale spoofing is honored and to reduce
* fingerprinting.
*
* See RFC 7231, Section 9.7 "Browser Fingerprinting" and
* RFC 2616, Section 15.1.4 "Privacy Issues Connected to Accept Headers"
* for more detail.
*/
/* static */
void Navigator::GetAcceptLanguages(nsTArray<nsString>& aLanguages) {
MOZ_ASSERT(NS_IsMainThread());
aLanguages.Clear();
// E.g. "de-de, en-us,en".
nsAutoString acceptLang;
Preferences::GetLocalizedString("intl.accept_languages", acceptLang);
// Split values on commas.
for (nsDependentSubstring lang :
nsCharSeparatedTokenizer(acceptLang, ',').ToRange()) {
// Replace "_" with "-" to avoid POSIX/Windows "en_US" notation.
// NOTE: we should probably rely on the pref being set correctly.
if (lang.Length() > 2 && lang[2] == char16_t('_')) {
lang.Replace(2, 1, char16_t('-'));
}
// Use uppercase for country part, e.g. "en-US", not "en-us", see BCP47
// only uppercase 2-letter country codes, not "zh-Hant", "de-DE-x-goethe".
// NOTE: we should probably rely on the pref being set correctly.
if (lang.Length() > 2) {
int32_t pos = 0;
bool first = true;
for (const nsAString& code :
nsCharSeparatedTokenizer(lang, '-').ToRange()) {
if (code.Length() == 2 && !first) {
nsAutoString upper(code);
ToUpperCase(upper);
lang.Replace(pos, code.Length(), upper);
}
pos += code.Length() + 1; // 1 is the separator
first = false;
}
}
aLanguages.AppendElement(lang);
}
if (aLanguages.Length() == 0) {
nsTArray<nsCString> locales;
mozilla::intl::LocaleService::GetInstance()->GetWebExposedLocales(locales);
aLanguages.AppendElement(NS_ConvertUTF8toUTF16(locales[0]));
}
}
/**
* Returns the first language from GetAcceptLanguages.
*
* Full details above in GetAcceptLanguages.
*/
void Navigator::GetLanguage(nsAString& aLanguage) {
nsTArray<nsString> languages;
GetLanguages(languages);
MOZ_ASSERT(languages.Length() >= 1);
aLanguage.Assign(languages[0]);
}
void Navigator::GetLanguages(nsTArray<nsString>& aLanguages) {
GetAcceptLanguages(aLanguages);
// The returned value is cached by the binding code. The window listens to the
// accept languages change and will clear the cache when needed. It has to
// take care of dispatching the DOM event already and the invalidation and the
// event has to be timed correctly.
}
void Navigator::GetPlatform(nsAString& aPlatform, CallerType aCallerType,
ErrorResult& aRv) const {
if (mWindow) {
BrowsingContext* bc = mWindow->GetBrowsingContext();
nsString customPlatform;
if (bc) {
bc->GetCustomPlatform(customPlatform);
if (!customPlatform.IsEmpty()) {
aPlatform = customPlatform;
return;
}
}
}
nsCOMPtr<Document> doc = mWindow->GetExtantDoc();
nsresult rv = GetPlatform(
aPlatform, doc ? doc->NodePrincipal() : nullptr,
/* aUsePrefOverriddenValue = */ aCallerType != CallerType::System);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(rv);
}
}
void Navigator::GetOscpu(nsAString& aOSCPU, CallerType aCallerType,
ErrorResult& aRv) const {
if (aCallerType != CallerType::System) {
// If fingerprinting resistance is on, we will spoof this value. See
// nsRFPService.h for details about spoofed values.
if (nsContentUtils::ShouldResistFingerprinting(GetDocShell())) {
aOSCPU.AssignLiteral(SPOOFED_OSCPU);
return;
}
nsAutoString override;
nsresult rv = Preferences::GetString("general.oscpu.override", override);
if (NS_SUCCEEDED(rv)) {
aOSCPU = override;
return;
}
}
nsresult rv;
nsCOMPtr<nsIHttpProtocolHandler> service(
do_GetService(NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX "http", &rv));
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(rv);
return;
}
nsAutoCString oscpu;
rv = service->GetOscpu(oscpu);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(rv);
return;
}
CopyASCIItoUTF16(oscpu, aOSCPU);
}
void Navigator::GetVendor(nsAString& aVendor) { aVendor.Truncate(); }
void Navigator::GetVendorSub(nsAString& aVendorSub) { aVendorSub.Truncate(); }
void Navigator::GetProduct(nsAString& aProduct) {
aProduct.AssignLiteral("Gecko");
}
void Navigator::GetProductSub(nsAString& aProductSub) {
// Legacy build date hardcoded for backward compatibility (bug 776376)
aProductSub.AssignLiteral(LEGACY_UA_GECKO_TRAIL);
}
nsMimeTypeArray* Navigator::GetMimeTypes(ErrorResult& aRv) {
auto* plugins = GetPlugins(aRv);
if (!plugins) {
return nullptr;
}
return plugins->MimeTypeArray();
}
nsPluginArray* Navigator::GetPlugins(ErrorResult& aRv) {
if (!mPlugins) {
if (!mWindow) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
mPlugins = MakeRefPtr<nsPluginArray>(mWindow);
}
return mPlugins;
}
bool Navigator::PdfViewerEnabled() {
// We ignore pdfjs.disabled when resisting fingerprinting.
// See bug 1756280 for an explanation.
return !StaticPrefs::pdfjs_disabled() ||
nsContentUtils::ShouldResistFingerprinting(GetDocShell());
}
Permissions* Navigator::GetPermissions(ErrorResult& aRv) {
if (!mWindow) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
if (!mPermissions) {
mPermissions = new Permissions(mWindow);
}
return mPermissions;
}
StorageManager* Navigator::Storage() {
MOZ_ASSERT(mWindow);
if (!mStorageManager) {
mStorageManager = new StorageManager(mWindow->AsGlobal());
}
return mStorageManager;
}
bool Navigator::CookieEnabled() {
// Check whether an exception overrides the global cookie behavior
// Note that the code for getting the URI here matches that in
// nsHTMLDocument::SetCookie.
if (!mWindow || !mWindow->GetDocShell()) {
return nsICookieManager::GetCookieBehavior(false) !=
nsICookieService::BEHAVIOR_REJECT;
}
nsCOMPtr<nsILoadContext> loadContext = do_GetInterface(mWindow);
uint32_t cookieBehavior = loadContext
? nsICookieManager::GetCookieBehavior(
loadContext->UsePrivateBrowsing())
: nsICookieManager::GetCookieBehavior(false);
bool cookieEnabled = cookieBehavior != nsICookieService::BEHAVIOR_REJECT;
nsCOMPtr<Document> doc = mWindow->GetExtantDoc();
if (!doc) {
return cookieEnabled;
}
uint32_t rejectedReason = 0;
bool granted = false;
nsresult rv = doc->NodePrincipal()->HasFirstpartyStorageAccess(
mWindow, &rejectedReason, &granted);
if (NS_FAILED(rv)) {
// Not a content, so technically can't set cookies, but let's
// just return the default value.
return cookieEnabled;
}
// We should return true if the cookie is partitioned because the cookie is
// still available in this case.
if (!granted &&
StoragePartitioningEnabled(rejectedReason, doc->CookieJarSettings())) {
granted = true;
}
ContentBlockingNotifier::OnDecision(
mWindow,
granted ? ContentBlockingNotifier::BlockingDecision::eAllow
: ContentBlockingNotifier::BlockingDecision::eBlock,
rejectedReason);
return granted;
}
bool Navigator::OnLine() { return !NS_IsOffline(); }
void Navigator::GetBuildID(nsAString& aBuildID, CallerType aCallerType,
ErrorResult& aRv) const {
if (aCallerType != CallerType::System) {
// If fingerprinting resistance is on, we will spoof this value. See
// nsRFPService.h for details about spoofed values.
if (nsContentUtils::ShouldResistFingerprinting(GetDocShell())) {
aBuildID.AssignLiteral(LEGACY_BUILD_ID);
return;
}
nsAutoString override;
nsresult rv = Preferences::GetString("general.buildID.override", override);
if (NS_SUCCEEDED(rv)) {
aBuildID = override;
return;
}
nsAutoCString host;
bool isHTTPS = false;
if (mWindow) {
nsCOMPtr<Document> doc = mWindow->GetDoc();
if (doc) {
nsIURI* uri = doc->GetDocumentURI();
if (uri) {
isHTTPS = uri->SchemeIs("https");
if (isHTTPS) {
MOZ_ALWAYS_SUCCEEDS(uri->GetHost(host));
}
}
}
}
// Spoof the buildID on pages not loaded from "https://*.mozilla.org".
if (!isHTTPS || !StringEndsWith(host, ".mozilla.org"_ns)) {
aBuildID.AssignLiteral(LEGACY_BUILD_ID);
return;
}
}
nsCOMPtr<nsIXULAppInfo> appInfo =
do_GetService("@mozilla.org/xre/app-info;1");
if (!appInfo) {
aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
return;
}
nsAutoCString buildID;
nsresult rv = appInfo->GetAppBuildID(buildID);
if (NS_WARN_IF(NS_FAILED(rv))) {
aRv.Throw(rv);
return;
}
aBuildID.Truncate();
AppendASCIItoUTF16(buildID, aBuildID);
}
void Navigator::GetDoNotTrack(nsAString& aResult) {
bool doNotTrack = StaticPrefs::privacy_donottrackheader_enabled();
if (!doNotTrack) {
nsCOMPtr<nsILoadContext> loadContext = do_GetInterface(mWindow);
doNotTrack = loadContext && loadContext->UseTrackingProtection();
}
if (doNotTrack) {
aResult.AssignLiteral("1");
} else {
aResult.AssignLiteral("unspecified");
}
}
bool Navigator::GlobalPrivacyControl() {
return StaticPrefs::privacy_globalprivacycontrol_enabled() &&
StaticPrefs::privacy_globalprivacycontrol_functionality_enabled();
}
uint64_t Navigator::HardwareConcurrency() {
workerinternals::RuntimeService* rts =
workerinternals::RuntimeService::GetOrCreateService();
if (!rts) {
return 1;
}
return rts->ClampedHardwareConcurrency();
}
namespace {
class VibrateWindowListener : public nsIDOMEventListener {
public:
VibrateWindowListener(nsPIDOMWindowInner* aWindow, Document* aDocument) {
mWindow = do_GetWeakReference(aWindow);
mDocument = do_GetWeakReference(aDocument);
constexpr auto visibilitychange = u"visibilitychange"_ns;
aDocument->AddSystemEventListener(visibilitychange, this, /* listener */
true, /* use capture */
false /* wants untrusted */);
}
void RemoveListener();
NS_DECL_ISUPPORTS
NS_DECL_NSIDOMEVENTLISTENER
private:
virtual ~VibrateWindowListener() = default;
nsWeakPtr mWindow;
nsWeakPtr mDocument;
};
NS_IMPL_ISUPPORTS(VibrateWindowListener, nsIDOMEventListener)
StaticRefPtr<VibrateWindowListener> gVibrateWindowListener;
static bool MayVibrate(Document* doc) {
// Hidden documents cannot start or stop a vibration.
return (doc && !doc->Hidden());
}
NS_IMETHODIMP
VibrateWindowListener::HandleEvent(Event* aEvent) {
nsCOMPtr<Document> doc = do_QueryInterface(aEvent->GetTarget());
if (!MayVibrate(doc)) {
// It's important that we call CancelVibrate(), not Vibrate() with an
// empty list, because Vibrate() will fail if we're no longer focused, but
// CancelVibrate() will succeed, so long as nobody else has started a new
// vibration pattern.
nsCOMPtr<nsPIDOMWindowInner> window = do_QueryReferent(mWindow);
hal::CancelVibrate(window);
RemoveListener();
gVibrateWindowListener = nullptr;
// Careful: The line above might have deleted |this|!
}
return NS_OK;
}
void VibrateWindowListener::RemoveListener() {
nsCOMPtr<EventTarget> target = do_QueryReferent(mDocument);
if (!target) {
return;
}
constexpr auto visibilitychange = u"visibilitychange"_ns;
target->RemoveSystemEventListener(visibilitychange, this,
true /* use capture */);
}
} // namespace
void Navigator::SetVibrationPermission(bool aPermitted, bool aPersistent) {
MOZ_ASSERT(NS_IsMainThread());
nsTArray<uint32_t> pattern = std::move(mRequestedVibrationPattern);
if (!mWindow) {
return;
}
nsCOMPtr<Document> doc = mWindow->GetExtantDoc();
if (!MayVibrate(doc)) {
return;
}
if (aPermitted) {
// Add a listener to cancel the vibration if the document becomes hidden,
// and remove the old visibility listener, if there was one.
if (!gVibrateWindowListener) {
// If gVibrateWindowListener is null, this is the first time we've
// vibrated, and we need to register a listener to clear
// gVibrateWindowListener on shutdown.
ClearOnShutdown(&gVibrateWindowListener);
} else {
gVibrateWindowListener->RemoveListener();
}
gVibrateWindowListener = new VibrateWindowListener(mWindow, doc);
hal::Vibrate(pattern, mWindow);
}
if (aPersistent) {
nsCOMPtr<nsIPermissionManager> permMgr =
components::PermissionManager::Service();
if (!permMgr) {
return;
}
permMgr->AddFromPrincipal(doc->NodePrincipal(), kVibrationPermissionType,
aPermitted ? nsIPermissionManager::ALLOW_ACTION
: nsIPermissionManager::DENY_ACTION,
nsIPermissionManager::EXPIRE_SESSION, 0);
}
}
bool Navigator::Vibrate(uint32_t aDuration) {
AutoTArray<uint32_t, 1> pattern;
pattern.AppendElement(aDuration);
return Vibrate(pattern);
}
nsTArray<uint32_t> SanitizeVibratePattern(const nsTArray<uint32_t>& aPattern) {
nsTArray<uint32_t> pattern(aPattern.Clone());
if (pattern.Length() > StaticPrefs::dom_vibrator_max_vibrate_list_len()) {
pattern.SetLength(StaticPrefs::dom_vibrator_max_vibrate_list_len());
}
for (size_t i = 0; i < pattern.Length(); ++i) {
pattern[i] =
std::min(StaticPrefs::dom_vibrator_max_vibrate_ms(), pattern[i]);
}
return pattern;
}
bool Navigator::Vibrate(const nsTArray<uint32_t>& aPattern) {
MOZ_ASSERT(NS_IsMainThread());
if (!mWindow) {
return false;
}
nsCOMPtr<Document> doc = mWindow->GetExtantDoc();
if (!MayVibrate(doc)) {
return false;
}
nsTArray<uint32_t> pattern = SanitizeVibratePattern(aPattern);
// The spec says we check dom.vibrator.enabled after we've done the sanity
// checking on the pattern.
if (!StaticPrefs::dom_vibrator_enabled()) {
return true;
}
mRequestedVibrationPattern = std::move(pattern);
PermissionDelegateHandler* permissionHandler =
doc->GetPermissionDelegateHandler();
if (NS_WARN_IF(!permissionHandler)) {
return false;
}
uint32_t permission = nsIPermissionManager::UNKNOWN_ACTION;
permissionHandler->GetPermission(kVibrationPermissionType, &permission,
false);
if (permission == nsIPermissionManager::DENY_ACTION) {
// Abort without observer service or on denied session permission.
SetVibrationPermission(false /* permitted */, false /* persistent */);
return false;
}
if (permission == nsIPermissionManager::ALLOW_ACTION ||
mRequestedVibrationPattern.IsEmpty() ||
(mRequestedVibrationPattern.Length() == 1 &&
mRequestedVibrationPattern[0] == 0)) {
// Always allow cancelling vibration and respect session permissions.
SetVibrationPermission(true /* permitted */, false /* persistent */);
return true;
}
// Request user permission.
nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
if (!obs) {
return true;
}
obs->NotifyObservers(ToSupports(this), "Vibration:Request", nullptr);
return true;
}
//*****************************************************************************
// Pointer Events interface
//*****************************************************************************
uint32_t Navigator::MaxTouchPoints(CallerType aCallerType) {
nsIDocShell* docshell = GetDocShell();
BrowsingContext* bc = docshell ? docshell->GetBrowsingContext() : nullptr;
// Responsive Design Mode overrides the maxTouchPoints property when
// touch simulation is enabled.
if (bc && bc->InRDMPane()) {
return bc->GetMaxTouchPointsOverride();
}
// The maxTouchPoints is going to reveal the detail of users' hardware. So,
// we will spoof it into 0 if fingerprinting resistance is on.
if (aCallerType != CallerType::System &&
nsContentUtils::ShouldResistFingerprinting(GetDocShell())) {
return 0;
}
nsCOMPtr<nsIWidget> widget =
widget::WidgetUtils::DOMWindowToWidget(mWindow->GetOuterWindow());
NS_ENSURE_TRUE(widget, 0);
return widget->GetMaxTouchPoints();
}
//*****************************************************************************
// Navigator::nsIDOMClientInformation
//*****************************************************************************
// This list should be kept up-to-date with the spec:
// https://html.spec.whatwg.org/multipage/system-state.html#custom-handlers
// If you change this list, please also update the copy in E10SUtils.jsm.
static const char* const kSafeSchemes[] = {
// clang-format off
"bitcoin",
"ftp",
"ftps",
"geo",
"im",
"irc",
"ircs",
"magnet",
"mailto",
"matrix",
"mms",
"news",
"nntp",
"openpgp4fpr",
"sftp",
"sip",
"sms",
"smsto",
"ssh",
"tel",
"urn",
"webcal",
"wtai",
"xmpp",
// clang-format on
};
void Navigator::CheckProtocolHandlerAllowed(const nsAString& aScheme,
nsIURI* aHandlerURI,
nsIURI* aDocumentURI,
ErrorResult& aRv) {
auto raisePermissionDeniedHandler = [&] {
nsAutoCString spec;
aHandlerURI->GetSpec(spec);
nsPrintfCString message("Permission denied to add %s as a protocol handler",
spec.get());
aRv.ThrowSecurityError(message);
};
auto raisePermissionDeniedScheme = [&] {
nsPrintfCString message(
"Permission denied to add a protocol handler for %s",
NS_ConvertUTF16toUTF8(aScheme).get());
aRv.ThrowSecurityError(message);
};
if (!aDocumentURI || !aHandlerURI) {
aRv.Throw(NS_ERROR_DOM_SYNTAX_ERR);
return;
}
nsCString spec;
aHandlerURI->GetSpec(spec);
// If the uri doesn't contain '%s', it won't be a good handler - the %s
// gets replaced with the handled URI.
if (!FindInReadable("%s"_ns, spec)) {
aRv.ThrowSyntaxError("Handler URI does not contain \"%s\".");
return;
}
// For security reasons we reject non-http(s) urls (see bug 354316),
nsAutoCString docScheme;
nsAutoCString handlerScheme;
aDocumentURI->GetScheme(docScheme);
aHandlerURI->GetScheme(handlerScheme);
if ((!docScheme.EqualsLiteral("https") && !docScheme.EqualsLiteral("http")) ||
(!handlerScheme.EqualsLiteral("https") &&
!handlerScheme.EqualsLiteral("http"))) {
raisePermissionDeniedHandler();
return;
}
// Should be same-origin:
nsAutoCString handlerHost;
aHandlerURI->GetHostPort(handlerHost);
nsAutoCString documentHost;
aDocumentURI->GetHostPort(documentHost);
if (!handlerHost.Equals(documentHost) || !handlerScheme.Equals(docScheme)) {
raisePermissionDeniedHandler();
return;
}
// Having checked the handler URI, check the scheme:
nsAutoCString scheme;
ToLowerCase(NS_ConvertUTF16toUTF8(aScheme), scheme);
if (StringBeginsWith(scheme, "web+"_ns)) {
// Check for non-ascii
nsReadingIterator<char> iter;
nsReadingIterator<char> iterEnd;
auto remainingScheme = Substring(scheme, 4 /* web+ */);
remainingScheme.BeginReading(iter);
remainingScheme.EndReading(iterEnd);
// Scheme suffix must be non-empty
if (iter == iterEnd) {
raisePermissionDeniedScheme();
return;
}
for (; iter != iterEnd; iter++) {
if (*iter < 'a' || *iter > 'z') {
raisePermissionDeniedScheme();
return;
}
}
} else {
bool matches = false;
for (const char* safeScheme : kSafeSchemes) {
if (scheme.Equals(safeScheme)) {
matches = true;
break;
}
}
if (!matches) {
raisePermissionDeniedScheme();
return;
}
}
nsCOMPtr<nsIProtocolHandler> handler;
nsCOMPtr<nsIIOService> io = components::IO::Service();
if (NS_FAILED(
io->GetProtocolHandler(scheme.get(), getter_AddRefs(handler)))) {
raisePermissionDeniedScheme();
return;
}
// check if we have prefs set saying not to add this.
bool defaultExternal =
Preferences::GetBool("network.protocol-handler.external-default");
nsPrintfCString specificPref("network.protocol-handler.external.%s",
scheme.get());
if (!Preferences::GetBool(specificPref.get(), defaultExternal)) {
raisePermissionDeniedScheme();
return;
}
// Check to make sure this isn't already handled internally (we don't
// want to let them take over, say "chrome"). In theory, the checks above
// should have already taken care of this.
nsCOMPtr<nsIExternalProtocolHandler> externalHandler =
do_QueryInterface(handler);
MOZ_RELEASE_ASSERT(
externalHandler,
"We should never allow overriding a builtin protocol handler");
}
void Navigator::RegisterProtocolHandler(const nsAString& aScheme,
const nsAString& aURI,
ErrorResult& aRv) {
if (!mWindow || !mWindow->GetOuterWindow() || !mWindow->GetDocShell() ||
!mWindow->GetDoc()) {
return;
}
nsCOMPtr<nsILoadContext> loadContext = do_GetInterface(mWindow);
if (loadContext->UsePrivateBrowsing()) {
// If we're a private window, don't alert the user or webpage. We log to the
// console so that web developers have some way to tell what's going wrong.
nsContentUtils::ReportToConsole(
nsIScriptError::warningFlag, "DOM"_ns, mWindow->GetDoc(),
nsContentUtils::eDOM_PROPERTIES,
"RegisterProtocolHandlerPrivateBrowsingWarning");
return;
}
nsCOMPtr<Document> doc = mWindow->GetDoc();
// Determine if doc is allowed to assign this handler
nsIURI* docURI = doc->GetDocumentURIObject();
nsCOMPtr<nsIURI> handlerURI;
NS_NewURI(getter_AddRefs(handlerURI), NS_ConvertUTF16toUTF8(aURI),
doc->GetDocumentCharacterSet(), docURI);
CheckProtocolHandlerAllowed(aScheme, handlerURI, docURI, aRv);
if (aRv.Failed()) {
return;
}
// Determine a title from the document URI.
nsAutoCString docDisplayHostPort;
docURI->GetDisplayHostPort(docDisplayHostPort);
NS_ConvertASCIItoUTF16 title(docDisplayHostPort);
if (XRE_IsContentProcess()) {
nsAutoString scheme(aScheme);
RefPtr<BrowserChild> browserChild = BrowserChild::GetFrom(mWindow);
browserChild->SendRegisterProtocolHandler(scheme, handlerURI, title,
docURI);
return;
}
nsCOMPtr<nsIWebProtocolHandlerRegistrar> registrar =
do_GetService(NS_WEBPROTOCOLHANDLERREGISTRAR_CONTRACTID);
if (registrar) {
aRv = registrar->RegisterProtocolHandler(aScheme, handlerURI, title, docURI,
mWindow->GetOuterWindow());
}
}
Geolocation* Navigator::GetGeolocation(ErrorResult& aRv) {
if (mGeolocation) {
return mGeolocation;
}
if (!mWindow || !mWindow->GetOuterWindow() || !mWindow->GetDocShell()) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
mGeolocation = new Geolocation();
if (NS_FAILED(mGeolocation->Init(mWindow))) {
mGeolocation = nullptr;
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
return mGeolocation;
}
class BeaconStreamListener final : public nsIStreamListener {
~BeaconStreamListener() = default;
public:
BeaconStreamListener() : mLoadGroup(nullptr) {}
void SetLoadGroup(nsILoadGroup* aLoadGroup) { mLoadGroup = aLoadGroup; }
NS_DECL_ISUPPORTS
NS_DECL_NSISTREAMLISTENER
NS_DECL_NSIREQUESTOBSERVER
private:
nsCOMPtr<nsILoadGroup> mLoadGroup;
};
NS_IMPL_ISUPPORTS(BeaconStreamListener, nsIStreamListener, nsIRequestObserver)
NS_IMETHODIMP
BeaconStreamListener::OnStartRequest(nsIRequest* aRequest) {
// release the loadgroup first
mLoadGroup = nullptr;
return NS_ERROR_ABORT;
}
NS_IMETHODIMP
BeaconStreamListener::OnStopRequest(nsIRequest* aRequest, nsresult aStatus) {
return NS_OK;
}
NS_IMETHODIMP
BeaconStreamListener::OnDataAvailable(nsIRequest* aRequest,
nsIInputStream* inStr,
uint64_t sourceOffset, uint32_t count) {
MOZ_ASSERT(false);
return NS_OK;
}
bool Navigator::SendBeacon(const nsAString& aUrl,
const Nullable<fetch::BodyInit>& aData,
ErrorResult& aRv) {
if (aData.IsNull()) {
return SendBeaconInternal(aUrl, nullptr, eBeaconTypeOther, aRv);
}
if (aData.Value().IsArrayBuffer()) {
BodyExtractor<const ArrayBuffer> body(&aData.Value().GetAsArrayBuffer());
return SendBeaconInternal(aUrl, &body, eBeaconTypeArrayBuffer, aRv);
}
if (aData.Value().IsArrayBufferView()) {
BodyExtractor<const ArrayBufferView> body(
&aData.Value().GetAsArrayBufferView());
return SendBeaconInternal(aUrl, &body, eBeaconTypeArrayBuffer, aRv);
}
if (aData.Value().IsBlob()) {
BodyExtractor<const Blob> body(&aData.Value().GetAsBlob());
return SendBeaconInternal(aUrl, &body, eBeaconTypeBlob, aRv);
}
if (aData.Value().IsFormData()) {
BodyExtractor<const FormData> body(&aData.Value().GetAsFormData());
return SendBeaconInternal(aUrl, &body, eBeaconTypeOther, aRv);
}
if (aData.Value().IsUSVString()) {
BodyExtractor<const nsAString> body(&aData.Value().GetAsUSVString());
return SendBeaconInternal(aUrl, &body, eBeaconTypeOther, aRv);
}
if (aData.Value().IsURLSearchParams()) {
BodyExtractor<const URLSearchParams> body(
&aData.Value().GetAsURLSearchParams());
return SendBeaconInternal(aUrl, &body, eBeaconTypeOther, aRv);
}
MOZ_CRASH("Invalid data type.");
return false;
}
bool Navigator::SendBeaconInternal(const nsAString& aUrl,
BodyExtractorBase* aBody, BeaconType aType,
ErrorResult& aRv) {
if (!mWindow) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return false;
}
nsCOMPtr<Document> doc = mWindow->GetDoc();
if (!doc) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return false;
}
nsIURI* documentURI = doc->GetDocumentURI();
if (!documentURI) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return false;
}
nsCOMPtr<nsIURI> uri;
nsresult rv = nsContentUtils::NewURIWithDocumentCharset(
getter_AddRefs(uri), aUrl, doc, doc->GetDocBaseURI());
if (NS_FAILED(rv)) {
aRv.ThrowTypeError<MSG_INVALID_URL>(NS_ConvertUTF16toUTF8(aUrl));
return false;
}
// Spec disallows any schemes save for HTTP/HTTPs
if (!uri->SchemeIs("http") && !uri->SchemeIs("https")) {
aRv.ThrowTypeError<MSG_INVALID_URL_SCHEME>("Beacon",
uri->GetSpecOrDefault());
return false;
}
nsCOMPtr<nsIInputStream> in;
nsAutoCString contentTypeWithCharset;
nsAutoCString charset;
uint64_t length = 0;
if (aBody) {
aRv = aBody->GetAsStream(getter_AddRefs(in), &length,
contentTypeWithCharset, charset);
if (NS_WARN_IF(aRv.Failed())) {
return false;
}
}
nsSecurityFlags securityFlags = nsILoadInfo::SEC_COOKIES_INCLUDE;
// Ensure that only streams with content types that are safelisted ignore CORS
// rules
if (aBody && !contentTypeWithCharset.IsVoid() &&
!nsContentUtils::IsCORSSafelistedRequestHeader("content-type"_ns,
contentTypeWithCharset)) {
securityFlags |= nsILoadInfo::SEC_REQUIRE_CORS_INHERITS_SEC_CONTEXT;
} else {
securityFlags |= nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_INHERITS_SEC_CONTEXT;
}
nsCOMPtr<nsIChannel> channel;
rv = NS_NewChannel(getter_AddRefs(channel), uri, doc, securityFlags,
nsIContentPolicy::TYPE_BEACON);
if (NS_FAILED(rv)) {
aRv.Throw(rv);
return false;
}
nsCOMPtr<nsIHttpChannel> httpChannel = do_QueryInterface(channel);
if (!httpChannel) {
// Beacon spec only supports HTTP requests at this time
aRv.Throw(NS_ERROR_DOM_BAD_URI);
return false;
}
auto referrerInfo = MakeRefPtr<ReferrerInfo>(*doc);
rv = httpChannel->SetReferrerInfoWithoutClone(referrerInfo);
MOZ_ASSERT(NS_SUCCEEDED(rv));
if (aBody) {
nsCOMPtr<nsIUploadChannel2> uploadChannel = do_QueryInterface(channel);
if (!uploadChannel) {
aRv.Throw(NS_ERROR_FAILURE);
return false;
}
uploadChannel->ExplicitSetUploadStream(in, contentTypeWithCharset, length,
"POST"_ns, false);
} else {
rv = httpChannel->SetRequestMethod("POST"_ns);
MOZ_ASSERT(NS_SUCCEEDED(rv));
}
nsCOMPtr<nsISupportsPriority> p = do_QueryInterface(channel);
if (p) {
p->SetPriority(nsISupportsPriority::PRIORITY_LOWEST);
}
nsCOMPtr<nsIClassOfService> cos(do_QueryInterface(channel));
if (cos) {
cos->AddClassFlags(nsIClassOfService::Background);
}
// The channel needs to have a loadgroup associated with it, so that we can
// cancel the channel and any redirected channels it may create.
nsCOMPtr<nsILoadGroup> loadGroup = do_CreateInstance(NS_LOADGROUP_CONTRACTID);
nsCOMPtr<nsIInterfaceRequestor> callbacks =
do_QueryInterface(mWindow->GetDocShell());
loadGroup->SetNotificationCallbacks(callbacks);
channel->SetLoadGroup(loadGroup);
RefPtr<BeaconStreamListener> beaconListener = new BeaconStreamListener();
rv = channel->AsyncOpen(beaconListener);
// do not throw if security checks fail within asyncOpen
NS_ENSURE_SUCCESS(rv, false);
// make the beaconListener hold a strong reference to the loadgroup
// which is released in ::OnStartRequest
beaconListener->SetLoadGroup(loadGroup);
return true;
}
MediaDevices* Navigator::GetMediaDevices(ErrorResult& aRv) {
if (!mMediaDevices) {
if (!mWindow || !mWindow->GetOuterWindow() ||
mWindow->GetOuterWindow()->GetCurrentInnerWindow() != mWindow) {
aRv.Throw(NS_ERROR_NOT_AVAILABLE);
return nullptr;
}
mMediaDevices = new MediaDevices(mWindow);
}
return mMediaDevices;
}
void Navigator::MozGetUserMedia(const MediaStreamConstraints& aConstraints,
NavigatorUserMediaSuccessCallback& aOnSuccess,
NavigatorUserMediaErrorCallback& aOnError,
CallerType aCallerType, ErrorResult& aRv) {
MOZ_ASSERT(NS_IsMainThread());
if (!mWindow || !mWindow->IsFullyActive()) {
aRv.ThrowInvalidStateError("The document is not fully active.");
return;
}
if (Document* doc = mWindow->GetExtantDoc()) {
if (!mWindow->IsSecureContext()) {
doc->SetUseCounter(eUseCounter_custom_MozGetUserMediaInsec);
}
}
RefPtr<MediaManager::StreamPromise> sp;
if (!MediaManager::IsOn(aConstraints.mVideo) &&
!MediaManager::IsOn(aConstraints.mAudio)) {
sp = MediaManager::StreamPromise::CreateAndReject(
MakeRefPtr<MediaMgrError>(MediaMgrError::Name::TypeError,
"audio and/or video is required"),
__func__);
} else {
sp = MediaManager::Get()->GetUserMedia(mWindow, aConstraints, aCallerType);
}
RefPtr<NavigatorUserMediaSuccessCallback> onsuccess(&aOnSuccess);
RefPtr<NavigatorUserMediaErrorCallback> onerror(&aOnError);
nsWeakPtr weakWindow = nsWeakPtr(do_GetWeakReference(mWindow));
sp->Then(
GetMainThreadSerialEventTarget(), __func__,
[weakWindow, onsuccess = std::move(onsuccess)](
const RefPtr<DOMMediaStream>& aStream) MOZ_CAN_RUN_SCRIPT {
nsCOMPtr<nsPIDOMWindowInner> window = do_QueryReferent(weakWindow);
if (!window || !window->GetOuterWindow() ||
window->GetOuterWindow()->GetCurrentInnerWindow() != window) {
return; // Leave Promise pending after navigation by design.
}
MediaManager::CallOnSuccess(*onsuccess, *aStream);
},
[weakWindow, onerror = std::move(onerror)](
const RefPtr<MediaMgrError>& aError) MOZ_CAN_RUN_SCRIPT {
nsCOMPtr<nsPIDOMWindowInner> window = do_QueryReferent(weakWindow);
if (!window || !window->GetOuterWindow() ||
window->GetOuterWindow()->GetCurrentInnerWindow() != window) {
return; // Leave Promise pending after navigation by design.
}
auto error = MakeRefPtr<MediaStreamError>(window, *aError);
MediaManager::CallOnError(*onerror, *error);
});
}
//*****************************************************************************
// Navigator::nsINavigatorBattery
//*****************************************************************************
Promise* Navigator::GetBattery(ErrorResult& aRv) {
if (mBatteryPromise) {
return mBatteryPromise;
}
if (!mWindow || !mWindow->GetDocShell()) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
RefPtr<Promise> batteryPromise = Promise::Create(mWindow->AsGlobal(), aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
mBatteryPromise = batteryPromise;
if (!mBatteryManager) {
mBatteryManager = new battery::BatteryManager(mWindow);
mBatteryManager->Init();
}
mBatteryPromise->MaybeResolve(mBatteryManager);
return mBatteryPromise;
}
//*****************************************************************************
// Navigator::Share() - Web Share API
//*****************************************************************************
Promise* Navigator::Share(const ShareData& aData, ErrorResult& aRv) {
if (!mWindow || !mWindow->IsFullyActive()) {
aRv.ThrowInvalidStateError("The document is not fully active.");
return nullptr;
}
if (NS_WARN_IF(!mWindow->GetDocShell() || !mWindow->GetExtantDoc())) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
if (!FeaturePolicyUtils::IsFeatureAllowed(mWindow->GetExtantDoc(),
u"web-share"_ns)) {
aRv.ThrowNotAllowedError(
"Document's Permissions Policy does not allow calling "
"share() from this context.");
return nullptr;
}
if (mSharePromise) {
NS_WARNING("Only one share picker at a time per navigator instance");
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return nullptr;
}
// null checked above
Document* doc = mWindow->GetExtantDoc();
if (StaticPrefs::dom_webshare_requireinteraction() &&
!doc->ConsumeTransientUserGestureActivation()) {
aRv.ThrowNotAllowedError(
"User activation was already consumed "
"or share() was not activated by a user gesture.");
return nullptr;
}
ValidateShareData(aData, aRv);
if (aRv.Failed()) {
return nullptr;
}
// TODO: Process file member, which we don't currently support.
// If data's url member is present, try to resolve it...
nsCOMPtr<nsIURI> url;
if (aData.mUrl.WasPassed()) {
auto result = doc->ResolveWithBaseURI(aData.mUrl.Value());
url = result.unwrap();
MOZ_ASSERT(url);
}
// Process the title member...
nsCString title;
if (aData.mTitle.WasPassed()) {
title.Assign(NS_ConvertUTF16toUTF8(aData.mTitle.Value()));
} else {
title.SetIsVoid(true);
}
// Process the text member...
nsCString text;
if (aData.mText.WasPassed()) {
text.Assign(NS_ConvertUTF16toUTF8(aData.mText.Value()));
} else {
text.SetIsVoid(true);
}
// Let mSharePromise be a new promise.
mSharePromise = Promise::Create(mWindow->AsGlobal(), aRv);
if (aRv.Failed()) {
return nullptr;
}
IPCWebShareData data(title, text, url);
auto wgc = mWindow->GetWindowGlobalChild();
if (!wgc) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
// Do the share
wgc->SendShare(data)->Then(
GetCurrentSerialEventTarget(), __func__,
[self = RefPtr{this}](
PWindowGlobalChild::SharePromise::ResolveOrRejectValue&& aResult) {
if (aResult.IsResolve()) {
if (NS_SUCCEEDED(aResult.ResolveValue())) {
self->mSharePromise->MaybeResolveWithUndefined();
} else {
self->mSharePromise->MaybeReject(aResult.ResolveValue());
}
} else if (self->mSharePromise) {
// IPC died
self->mSharePromise->MaybeReject(NS_BINDING_ABORTED);
}
self->mSharePromise = nullptr;
});
return mSharePromise;
}
//*****************************************************************************
// Navigator::CanShare() - Web Share API
//*****************************************************************************
bool Navigator::CanShare(const ShareData& aData) {
if (!mWindow || !mWindow->IsFullyActive()) {
return false;
}
if (!FeaturePolicyUtils::IsFeatureAllowed(mWindow->GetExtantDoc(),
u"web-share"_ns)) {
return false;
}
IgnoredErrorResult rv;
ValidateShareData(aData, rv);
return !rv.Failed();
}
void Navigator::ValidateShareData(const ShareData& aData, ErrorResult& aRv) {
// TODO: remove this check when we support files share.
if (aData.mFiles.WasPassed() && !aData.mFiles.Value().IsEmpty()) {
aRv.ThrowTypeError("Passing files is currently not supported.");
return;
}
bool titleTextOrUrlPassed = aData.mTitle.WasPassed() ||
aData.mText.WasPassed() || aData.mUrl.WasPassed();
// At least one member must be present.
if (!titleTextOrUrlPassed) {
aRv.ThrowTypeError(
"Must have a title, text, or url member in the ShareData dictionary");
return;
}
// If data's url member is present, try to resolve it...
nsCOMPtr<nsIURI> url;
if (aData.mUrl.WasPassed()) {
Document* doc = mWindow->GetExtantDoc();
Result<OwningNonNull<nsIURI>, nsresult> result =
doc->ResolveWithBaseURI(aData.mUrl.Value());
if (NS_WARN_IF(result.isErr())) {
aRv.ThrowTypeError<MSG_INVALID_URL>(
NS_ConvertUTF16toUTF8(aData.mUrl.Value()));
return;
}
url = result.unwrap();
// Check that we only share loadable URLs (e.g., http/https).
// we also exclude blobs, as it doesn't make sense to share those outside
// the context of the browser.
const uint32_t flags =
nsIScriptSecurityManager::DISALLOW_INHERIT_PRINCIPAL |
nsIScriptSecurityManager::DISALLOW_SCRIPT;
if (NS_FAILED(
nsContentUtils::GetSecurityManager()->CheckLoadURIWithPrincipal(
doc->NodePrincipal(), url, flags, doc->InnerWindowID())) ||
url->SchemeIs("blob")) {
aRv.ThrowTypeError<MSG_INVALID_URL_SCHEME>("Share",
url->GetSpecOrDefault());
return;
}
}
}
already_AddRefed<LegacyMozTCPSocket> Navigator::MozTCPSocket() {
RefPtr<LegacyMozTCPSocket> socket = new LegacyMozTCPSocket(GetWindow());
return socket.forget();
}
void Navigator::GetGamepads(nsTArray<RefPtr<Gamepad>>& aGamepads,
ErrorResult& aRv) {
if (!mWindow || !mWindow->IsFullyActive()) {
return;
}
NS_ENSURE_TRUE_VOID(mWindow->GetDocShell());
nsGlobalWindowInner* win = nsGlobalWindowInner::Cast(mWindow);
if (!FeaturePolicyUtils::IsFeatureAllowed(win->GetExtantDoc(),
u"gamepad"_ns)) {
aRv.ThrowSecurityError(
"Document's Permission Policy does not allow calling "
"getGamepads() from this context.");
return;
}
win->SetHasGamepadEventListener(true);
win->GetGamepads(aGamepads);
}
GamepadServiceTest* Navigator::RequestGamepadServiceTest() {
if (!mGamepadServiceTest) {
mGamepadServiceTest = GamepadServiceTest::CreateTestService(mWindow);
}
return mGamepadServiceTest;
}
already_AddRefed<Promise> Navigator::GetVRDisplays(ErrorResult& aRv) {
if (!mWindow || !mWindow->GetDocShell() || !mWindow->GetExtantDoc()) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
if (!FeaturePolicyUtils::IsFeatureAllowed(mWindow->GetExtantDoc(),
u"vr"_ns)) {
aRv.Throw(NS_ERROR_DOM_SECURITY_ERR);
return nullptr;
}
RefPtr<Promise> p = Promise::Create(mWindow->AsGlobal(), aRv);
if (aRv.Failed()) {
return nullptr;
}
RefPtr<BrowserChild> browser(BrowserChild::GetFrom(mWindow));
if (!browser) {
MOZ_ASSERT(XRE_IsParentProcess());
FinishGetVRDisplays(true, p);
} else {
RefPtr<Navigator> self(this);
int browserID = browser->ChromeOuterWindowID();
browser->SendIsWindowSupportingWebVR(browserID)->Then(
GetCurrentSerialEventTarget(), __func__,
[self, p](bool isSupported) {
self->FinishGetVRDisplays(isSupported, p);
},
[p](const mozilla::ipc::ResponseRejectReason) {
p->MaybeRejectWithTypeError("Unable to start display enumeration");
});
}
return p.forget();
}
void Navigator::FinishGetVRDisplays(bool isWebVRSupportedInwindow, Promise* p) {
if (!isWebVRSupportedInwindow) {
// WebVR in this window is not supported, so resolve the promise
// with no displays available
nsTArray<RefPtr<VRDisplay>> vrDisplaysEmpty;
p->MaybeResolve(vrDisplaysEmpty);
return;
}
// Since FinishGetVRDisplays can be called asynchronously after an IPC
// response, it's possible that the Window can be torn down before this
// call. In that case, the Window's cyclic references to VR objects are
// also torn down and should not be recreated via
// NotifyHasXRSession.
nsGlobalWindowInner* win = nsGlobalWindowInner::Cast(mWindow);
if (win->IsDying()) {
// The Window has been torn down, so there is no further work that can
// be done.
p->MaybeRejectWithTypeError(
"Unable to return VRDisplays for a closed window.");
return;
}
mVRGetDisplaysPromises.AppendElement(p);
win->RequestXRPermission();
}
void Navigator::OnXRPermissionRequestAllow() {
// The permission request that results in this callback could have
// been instantiated by WebVR, WebXR, or both.
nsGlobalWindowInner* win = nsGlobalWindowInner::Cast(mWindow);
bool usingWebXR = false;
if (mXRSystem) {
usingWebXR = mXRSystem->OnXRPermissionRequestAllow();
}
bool rejectWebVR = true;
// If WebVR and WebXR both requested permission, only grant it to
// WebXR, which takes priority.
if (!usingWebXR) {
// We pass mWindow's id to RefreshVRDisplays, so NotifyVRDisplaysUpdated
// will be called asynchronously, resolving the promises in
// mVRGetDisplaysPromises.
rejectWebVR = !VRDisplay::RefreshVRDisplays(win->WindowID());
}
// Even if WebXR took priority, reject requests for WebVR in case they were
// made simultaneously and coelesced into a single permission prompt.
if (rejectWebVR) {
for (auto& p : mVRGetDisplaysPromises) {
// Failed to refresh, reject the promise now
p->MaybeRejectWithTypeError("Failed to find attached VR displays.");
}
mVRGetDisplaysPromises.Clear();
}
}
void Navigator::OnXRPermissionRequestCancel() {
if (mXRSystem) {
mXRSystem->OnXRPermissionRequestCancel();
}
nsTArray<RefPtr<VRDisplay>> vrDisplays;
for (auto& p : mVRGetDisplaysPromises) {
// Resolve the promise with no vr displays when
// the user blocks access.
p->MaybeResolve(vrDisplays);
}
mVRGetDisplaysPromises.Clear();
}
void Navigator::GetActiveVRDisplays(
nsTArray<RefPtr<VRDisplay>>& aDisplays) const {
/**
* Get only the active VR displays.
* GetActiveVRDisplays should only enumerate displays that
* are already active without causing any other hardware to be
* activated.
* We must not call nsGlobalWindow::NotifyHasXRSession here,
* as that would cause enumeration and activation of other VR hardware.
* Activating VR hardware is intrusive to the end user, as it may
* involve physically powering on devices that the user did not
* intend to use.
*/
if (!mWindow || !mWindow->GetDocShell()) {
return;
}
nsGlobalWindowInner* win = nsGlobalWindowInner::Cast(mWindow);
nsTArray<RefPtr<VRDisplay>> displays;
if (win->UpdateVRDisplays(displays)) {
for (auto display : displays) {
if (display->IsPresenting()) {
aDisplays.AppendElement(display);
}
}
}
}
void Navigator::NotifyVRDisplaysUpdated() {
// Synchronize the VR devices and resolve the promises in
// mVRGetDisplaysPromises
nsGlobalWindowInner* win = nsGlobalWindowInner::Cast(mWindow);
nsTArray<RefPtr<VRDisplay>> vrDisplays;
if (win->UpdateVRDisplays(vrDisplays)) {
for (auto p : mVRGetDisplaysPromises) {
p->MaybeResolve(vrDisplays);
}
} else {
for (auto p : mVRGetDisplaysPromises) {
p->MaybeReject(NS_ERROR_FAILURE);
}
}
mVRGetDisplaysPromises.Clear();
}
void Navigator::NotifyActiveVRDisplaysChanged() {
Navigator_Binding::ClearCachedActiveVRDisplaysValue(this);
}
VRServiceTest* Navigator::RequestVRServiceTest() {
// Ensure that the Mock VR devices are not released prematurely
nsGlobalWindowInner* win = nsGlobalWindowInner::Cast(mWindow);
win->NotifyHasXRSession();
if (!mVRServiceTest) {
mVRServiceTest = VRServiceTest::CreateTestService(mWindow);
}
return mVRServiceTest;
}
XRSystem* Navigator::GetXr(ErrorResult& aRv) {
if (!mWindow) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
if (!mXRSystem) {
mXRSystem = XRSystem::Create(mWindow);
}
return mXRSystem;
}
bool Navigator::IsWebVRContentDetected() const {
nsGlobalWindowInner* win = nsGlobalWindowInner::Cast(mWindow);
return win->IsVRContentDetected();
}
bool Navigator::IsWebVRContentPresenting() const {
nsGlobalWindowInner* win = nsGlobalWindowInner::Cast(mWindow);
return win->IsVRContentPresenting();
}
void Navigator::RequestVRPresentation(VRDisplay& aDisplay) {
nsGlobalWindowInner* win = nsGlobalWindowInner::Cast(mWindow);
win->DispatchVRDisplayActivate(aDisplay.DisplayId(),
VRDisplayEventReason::Requested);
}
already_AddRefed<Promise> Navigator::RequestMIDIAccess(
const MIDIOptions& aOptions, ErrorResult& aRv) {
if (!mWindow) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
MIDIAccessManager* accessMgr = MIDIAccessManager::Get();
return accessMgr->RequestMIDIAccess(mWindow, aOptions, aRv);
}
network::Connection* Navigator::GetConnection(ErrorResult& aRv) {
if (!mConnection) {
if (!mWindow) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
nsCOMPtr<Document> doc = mWindow->GetExtantDoc();
mConnection = network::Connection::CreateForWindow(
mWindow, nsContentUtils::ShouldResistFingerprinting(doc));
}
return mConnection;
}
already_AddRefed<ServiceWorkerContainer> Navigator::ServiceWorker() {
MOZ_ASSERT(mWindow);
if (!mServiceWorkerContainer) {
mServiceWorkerContainer =
ServiceWorkerContainer::Create(mWindow->AsGlobal());
}
RefPtr<ServiceWorkerContainer> ref = mServiceWorkerContainer;
return ref.forget();
}
size_t Navigator::SizeOfIncludingThis(
mozilla::MallocSizeOf aMallocSizeOf) const {
size_t n = aMallocSizeOf(this);
// TODO: add SizeOfIncludingThis() to nsMimeTypeArray, bug 674113.
// TODO: add SizeOfIncludingThis() to nsPluginArray, bug 674114.
// TODO: add SizeOfIncludingThis() to Geolocation, bug 674115.
// TODO: add SizeOfIncludingThis() to DesktopNotificationCenter, bug 674116.
return n;
}
void Navigator::SetWindow(nsPIDOMWindowInner* aInnerWindow) {
mWindow = aInnerWindow;
}
void Navigator::OnNavigation() {
if (!mWindow) {
return;
}
// If MediaManager is open let it inform any live streams or pending callbacks
MediaManager* manager = MediaManager::GetIfExists();
if (manager) {
manager->OnNavigation(mWindow->WindowID());
}
}
JSObject* Navigator::WrapObject(JSContext* cx,
JS::Handle<JSObject*> aGivenProto) {
return Navigator_Binding::Wrap(cx, this, aGivenProto);
}
/* static */
bool Navigator::HasUserMediaSupport(JSContext* cx, JSObject* obj) {
// Make enabling peerconnection enable getUserMedia() as well.
// Emulate [SecureContext] unless media.devices.insecure.enabled=true
return (StaticPrefs::media_navigator_enabled() ||
StaticPrefs::media_peerconnection_enabled()) &&
(IsSecureContextOrObjectIsFromSecureContext(cx, obj) ||
StaticPrefs::media_devices_insecure_enabled());
}
/* static */
bool Navigator::HasShareSupport(JSContext* cx, JSObject* obj) {
if (!StaticPrefs::dom_webshare_enabled()) {
return false;
}
#if defined(XP_WIN) && !defined(__MINGW32__)
// The first public build that supports ShareCanceled API
return IsWindows10BuildOrLater(18956);
#else
return true;
#endif
}
/* static */
already_AddRefed<nsPIDOMWindowInner> Navigator::GetWindowFromGlobal(
JSObject* aGlobal) {
nsCOMPtr<nsPIDOMWindowInner> win = xpc::WindowOrNull(aGlobal);
return win.forget();
}
void Navigator::ClearPlatformCache() {
Navigator_Binding::ClearCachedPlatformValue(this);
}
nsresult Navigator::GetPlatform(nsAString& aPlatform,
nsIPrincipal* aCallerPrincipal,
bool aUsePrefOverriddenValue) {
MOZ_ASSERT(NS_IsMainThread());
if (aUsePrefOverriddenValue) {
// If fingerprinting resistance is on, we will spoof this value. See
// nsRFPService.h for details about spoofed values.
if (nsContentUtils::ShouldResistFingerprinting(aCallerPrincipal)) {
aPlatform.AssignLiteral(SPOOFED_PLATFORM);
return NS_OK;
}
nsAutoString override;
nsresult rv =
mozilla::Preferences::GetString("general.platform.override", override);
if (NS_SUCCEEDED(rv)) {
aPlatform = override;
return NS_OK;
}
}
#if defined(WIN32)
aPlatform.AssignLiteral("Win32");
#elif defined(XP_MACOSX)
// Always return "MacIntel", even on ARM64 macOS like Safari does.
aPlatform.AssignLiteral("MacIntel");
#else
nsresult rv;
nsCOMPtr<nsIHttpProtocolHandler> service(
do_GetService(NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX "http", &rv));
NS_ENSURE_SUCCESS(rv, rv);
nsAutoCString plat;
rv = service->GetOscpu(plat);
NS_ENSURE_SUCCESS(rv, rv);
CopyASCIItoUTF16(plat, aPlatform);
#endif
return NS_OK;
}
/* static */
nsresult Navigator::GetAppVersion(nsAString& aAppVersion,
nsIPrincipal* aCallerPrincipal,
bool aUsePrefOverriddenValue) {
MOZ_ASSERT(NS_IsMainThread());
if (aUsePrefOverriddenValue) {
// If fingerprinting resistance is on, we will spoof this value. See
// nsRFPService.h for details about spoofed values.
if (nsContentUtils::ShouldResistFingerprinting(aCallerPrincipal)) {
aAppVersion.AssignLiteral(SPOOFED_APPVERSION);
return NS_OK;
}
nsAutoString override;
nsresult rv = mozilla::Preferences::GetString("general.appversion.override",
override);
if (NS_SUCCEEDED(rv)) {
aAppVersion = override;
return NS_OK;
}
}
nsresult rv;
nsCOMPtr<nsIHttpProtocolHandler> service(
do_GetService(NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX "http", &rv));
NS_ENSURE_SUCCESS(rv, rv);
nsAutoCString str;
rv = service->GetAppVersion(str);
CopyASCIItoUTF16(str, aAppVersion);
NS_ENSURE_SUCCESS(rv, rv);
aAppVersion.AppendLiteral(" (");
rv = service->GetPlatform(str);
NS_ENSURE_SUCCESS(rv, rv);
AppendASCIItoUTF16(str, aAppVersion);
aAppVersion.Append(char16_t(')'));
return rv;
}
/* static */
void Navigator::AppName(nsAString& aAppName, nsIPrincipal* aCallerPrincipal,
bool aUsePrefOverriddenValue) {
MOZ_ASSERT(NS_IsMainThread());
if (aUsePrefOverriddenValue) {
// If fingerprinting resistance is on, we will spoof this value. See
// nsRFPService.h for details about spoofed values.
if (nsContentUtils::ShouldResistFingerprinting(aCallerPrincipal)) {
aAppName.AssignLiteral(SPOOFED_APPNAME);
return;
}
nsAutoString override;
nsresult rv =
mozilla::Preferences::GetString("general.appname.override", override);
if (NS_SUCCEEDED(rv)) {
aAppName = override;
return;
}
}
aAppName.AssignLiteral("Netscape");
}
void Navigator::ClearUserAgentCache() {
Navigator_Binding::ClearCachedUserAgentValue(this);
}
nsresult Navigator::GetUserAgent(nsPIDOMWindowInner* aWindow,
nsIPrincipal* aCallerPrincipal,
bool aIsCallerChrome, nsAString& aUserAgent) {
MOZ_ASSERT(NS_IsMainThread());
// We will skip the override and pass to httpHandler to get spoofed userAgent
// when 'privacy.resistFingerprinting' is true.
if (!aIsCallerChrome &&
!nsContentUtils::ShouldResistFingerprinting(aCallerPrincipal)) {
nsAutoString override;
nsresult rv =
mozilla::Preferences::GetString("general.useragent.override", override);
if (NS_SUCCEEDED(rv)) {
aUserAgent = override;
return NS_OK;
}
}
// When the caller is content and 'privacy.resistFingerprinting' is true,
// return a spoofed userAgent which reveals the platform but not the
// specific OS version, etc.
if (!aIsCallerChrome &&
nsContentUtils::ShouldResistFingerprinting(aCallerPrincipal)) {
nsAutoCString spoofedUA;
nsRFPService::GetSpoofedUserAgent(spoofedUA, false);
CopyASCIItoUTF16(spoofedUA, aUserAgent);
return NS_OK;
}
nsresult rv;
nsCOMPtr<nsIHttpProtocolHandler> service(
do_GetService(NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX "http", &rv));
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsAutoCString ua;
rv = service->GetUserAgent(ua);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
CopyASCIItoUTF16(ua, aUserAgent);
// When the caller is content, we will always return spoofed userAgent and
// ignore the User-Agent header from the document channel when
// 'privacy.resistFingerprinting' is true.
if (!aWindow ||
(nsContentUtils::ShouldResistFingerprinting(aCallerPrincipal) &&
!aIsCallerChrome)) {
return NS_OK;
}
// Copy the User-Agent header from the document channel which has already been
// subject to UA overrides.
nsCOMPtr<Document> doc = aWindow->GetExtantDoc();
if (!doc) {
return NS_OK;
}
nsCOMPtr<nsIHttpChannel> httpChannel = do_QueryInterface(doc->GetChannel());
if (httpChannel) {
nsAutoCString userAgent;
rv = httpChannel->GetRequestHeader("User-Agent"_ns, userAgent);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
CopyASCIItoUTF16(userAgent, aUserAgent);
}
return NS_OK;
}
static nsCString RequestKeySystemAccessLogString(
const nsAString& aKeySystem,
const Sequence<MediaKeySystemConfiguration>& aConfigs,
bool aIsSecureContext) {
nsCString str;
str.AppendPrintf(
"Navigator::RequestMediaKeySystemAccess(keySystem='%s' options=",
NS_ConvertUTF16toUTF8(aKeySystem).get());
str.Append(MediaKeySystemAccess::ToCString(aConfigs));
str.AppendLiteral(") secureContext=");
str.AppendInt(aIsSecureContext);
return str;
}
already_AddRefed<Promise> Navigator::RequestMediaKeySystemAccess(
const nsAString& aKeySystem,
const Sequence<MediaKeySystemConfiguration>& aConfigs, ErrorResult& aRv) {
EME_LOG("%s", RequestKeySystemAccessLogString(aKeySystem, aConfigs,
mWindow->IsSecureContext())
.get());
if (!mWindow->IsSecureContext()) {
Document* doc = mWindow->GetExtantDoc();
AutoTArray<nsString, 1> params;
nsString* uri = params.AppendElement();
if (doc) {
Unused << doc->GetDocumentURI(*uri);
}
nsContentUtils::ReportToConsole(nsIScriptError::warningFlag, "Media"_ns,
doc, nsContentUtils::eDOM_PROPERTIES,
"MediaEMEInsecureContextDeprecatedWarning",
params);
}
Document* doc = mWindow->GetExtantDoc();
if (doc &&
!FeaturePolicyUtils::IsFeatureAllowed(doc, u"encrypted-media"_ns)) {
aRv.Throw(NS_ERROR_DOM_SECURITY_ERR);
return nullptr;
}
RefPtr<DetailedPromise> promise = DetailedPromise::Create(
mWindow->AsGlobal(), aRv, "navigator.requestMediaKeySystemAccess"_ns);
if (aRv.Failed()) {
return nullptr;
}
if (!mMediaKeySystemAccessManager) {
mMediaKeySystemAccessManager = new MediaKeySystemAccessManager(mWindow);
}
mMediaKeySystemAccessManager->Request(promise, aKeySystem, aConfigs);
return promise.forget();
}
CredentialsContainer* Navigator::Credentials() {
if (!mCredentials) {
mCredentials = new CredentialsContainer(GetWindow());
}
return mCredentials;
}
dom::MediaCapabilities* Navigator::MediaCapabilities() {
if (!mMediaCapabilities) {
mMediaCapabilities = new dom::MediaCapabilities(GetWindow()->AsGlobal());
}
return mMediaCapabilities;
}
dom::MediaSession* Navigator::MediaSession() {
if (!mMediaSession) {
mMediaSession = new dom::MediaSession(GetWindow());
}
return mMediaSession;
}
bool Navigator::HasCreatedMediaSession() const {
return mMediaSession != nullptr;
}
Clipboard* Navigator::Clipboard() {
if (!mClipboard) {
mClipboard = new dom::Clipboard(GetWindow());
}
return mClipboard;
}
AddonManager* Navigator::GetMozAddonManager(ErrorResult& aRv) {
if (!mAddonManager) {
nsPIDOMWindowInner* win = GetWindow();
if (!win) {
aRv.Throw(NS_ERROR_UNEXPECTED);
return nullptr;
}
mAddonManager = ConstructJSImplementation<AddonManager>(
"@mozilla.org/addon-web-api/manager;1", win->AsGlobal(), aRv);
if (aRv.Failed()) {
return nullptr;
}
}
return mAddonManager;
}
webgpu::Instance* Navigator::Gpu() {
if (!mWebGpu) {
mWebGpu = webgpu::Instance::Create(GetWindow()->AsGlobal());
}
return mWebGpu;
}
dom::LockManager* Navigator::Locks() {
if (!mLocks) {
mLocks = new dom::LockManager(GetWindow()->AsGlobal());
}
return mLocks;
}
/* static */
bool Navigator::Webdriver() {
#ifdef ENABLE_WEBDRIVER
nsCOMPtr<nsIMarionette> marionette = do_GetService(NS_MARIONETTE_CONTRACTID);
if (marionette) {
bool marionetteRunning = false;
marionette->GetRunning(&marionetteRunning);
if (marionetteRunning) {
return true;
}
}
nsCOMPtr<nsIRemoteAgent> agent = do_GetService(NS_REMOTEAGENT_CONTRACTID);
if (agent) {
bool remoteAgentListening = false;
agent->GetListening(&remoteAgentListening);
if (remoteAgentListening) {
return true;
}
}
#endif
return false;
}
} // namespace mozilla::dom
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