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nsDocShell.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/. */
#include "nsDocShell.h"
#include <algorithm>
#ifdef XP_WIN
# include <process.h>
# define getpid _getpid
#else
# include <unistd.h> // for getpid()
#endif
#include "mozilla/ArrayUtils.h"
#include "mozilla/Attributes.h"
#include "mozilla/AutoRestore.h"
#include "mozilla/BasePrincipal.h"
#include "mozilla/Casting.h"
#include "mozilla/CheckedInt.h"
#include "mozilla/Components.h"
#include "mozilla/DebugOnly.h"
#include "mozilla/Encoding.h"
#include "mozilla/EventStateManager.h"
#include "mozilla/HTMLEditor.h"
#include "mozilla/InputTaskManager.h"
#include "mozilla/LoadInfo.h"
#include "mozilla/Logging.h"
#include "mozilla/MediaFeatureChange.h"
#include "mozilla/ObservedDocShell.h"
#include "mozilla/Preferences.h"
#include "mozilla/PresShell.h"
#include "mozilla/ResultExtensions.h"
#include "mozilla/SchedulerGroup.h"
#include "mozilla/ScopeExit.h"
#include "mozilla/ScrollTypes.h"
#include "mozilla/SimpleEnumerator.h"
#include "mozilla/StaticPrefs_browser.h"
#include "mozilla/StaticPrefs_docshell.h"
#include "mozilla/StaticPrefs_dom.h"
#include "mozilla/StaticPrefs_extensions.h"
#include "mozilla/StaticPrefs_privacy.h"
#include "mozilla/StaticPrefs_security.h"
#include "mozilla/StaticPrefs_ui.h"
#include "mozilla/StaticPrefs_fission.h"
#include "mozilla/StartupTimeline.h"
#include "mozilla/StorageAccess.h"
#include "mozilla/StoragePrincipalHelper.h"
#include "mozilla/Telemetry.h"
#include "mozilla/Tuple.h"
#include "mozilla/Unused.h"
#include "mozilla/WidgetUtils.h"
#include "mozilla/dom/AutoEntryScript.h"
#include "mozilla/dom/ChildProcessChannelListener.h"
#include "mozilla/dom/ClientChannelHelper.h"
#include "mozilla/dom/ClientHandle.h"
#include "mozilla/dom/ClientInfo.h"
#include "mozilla/dom/ClientManager.h"
#include "mozilla/dom/ClientSource.h"
#include "mozilla/dom/ContentChild.h"
#include "mozilla/dom/ContentFrameMessageManager.h"
#include "mozilla/dom/DocGroup.h"
#include "mozilla/dom/Element.h"
#include "mozilla/dom/HTMLAnchorElement.h"
#include "mozilla/dom/HTMLIFrameElement.h"
#include "mozilla/dom/PerformanceNavigation.h"
#include "mozilla/dom/PermissionMessageUtils.h"
#include "mozilla/dom/PopupBlocker.h"
#include "mozilla/dom/ProfileTimelineMarkerBinding.h"
#include "mozilla/dom/ScreenOrientation.h"
#include "mozilla/dom/ScriptSettings.h"
#include "mozilla/dom/ServiceWorkerInterceptController.h"
#include "mozilla/dom/ServiceWorkerUtils.h"
#include "mozilla/dom/SessionHistoryEntry.h"
#include "mozilla/dom/SessionStorageManager.h"
#include "mozilla/dom/SessionStoreChangeListener.h"
#include "mozilla/dom/SessionStoreChild.h"
#include "mozilla/dom/SessionStoreUtils.h"
#include "mozilla/dom/BrowserChild.h"
#include "mozilla/dom/ToJSValue.h"
#include "mozilla/dom/UserActivation.h"
#include "mozilla/dom/ChildSHistory.h"
#include "mozilla/dom/nsCSPContext.h"
#include "mozilla/dom/nsHTTPSOnlyUtils.h"
#include "mozilla/dom/LoadURIOptionsBinding.h"
#include "mozilla/dom/JSWindowActorChild.h"
#include "mozilla/dom/DocumentBinding.h"
#include "mozilla/ipc/ProtocolUtils.h"
#include "mozilla/net/DocumentChannel.h"
#include "mozilla/net/DocumentChannelChild.h"
#include "mozilla/net/ParentChannelWrapper.h"
#include "mozilla/net/UrlClassifierFeatureFactory.h"
#include "ReferrerInfo.h"
#include "nsIAppShell.h"
#include "nsIAuthPrompt.h"
#include "nsIAuthPrompt2.h"
#include "nsICachingChannel.h"
#include "nsICaptivePortalService.h"
#include "nsIChannel.h"
#include "nsIChannelEventSink.h"
#include "nsIClassOfService.h"
#include "nsIConsoleReportCollector.h"
#include "nsIContent.h"
#include "nsIContentInlines.h"
#include "nsIContentSecurityPolicy.h"
#include "nsIContentViewer.h"
#include "nsIController.h"
#include "nsIDocShellTreeItem.h"
#include "nsIDocShellTreeOwner.h"
#include "mozilla/dom/Document.h"
#include "nsHTMLDocument.h"
#include "nsIDocumentLoaderFactory.h"
#include "nsIDOMWindow.h"
#include "nsIEditingSession.h"
#include "nsIEffectiveTLDService.h"
#include "nsIExternalProtocolService.h"
#include "nsIFormPOSTActionChannel.h"
#include "nsIFrame.h"
#include "nsIGlobalObject.h"
#include "nsIHttpChannel.h"
#include "nsIHttpChannelInternal.h"
#include "nsIIDNService.h"
#include "nsIInputStreamChannel.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsILayoutHistoryState.h"
#include "nsILoadInfo.h"
#include "nsILoadURIDelegate.h"
#include "nsIMultiPartChannel.h"
#include "nsINestedURI.h"
#include "nsINetworkPredictor.h"
#include "nsINode.h"
#include "nsINSSErrorsService.h"
#include "nsIObserverService.h"
#include "nsIOService.h"
#include "nsIPrincipal.h"
#include "nsIPrivacyTransitionObserver.h"
#include "nsIPrompt.h"
#include "nsIPromptCollection.h"
#include "nsIPromptFactory.h"
#include "nsIPublicKeyPinningService.h"
#include "nsIReflowObserver.h"
#include "nsIScriptChannel.h"
#include "nsIScriptObjectPrincipal.h"
#include "nsIScriptSecurityManager.h"
#include "nsIScrollableFrame.h"
#include "nsIScrollObserver.h"
#include "nsISupportsPrimitives.h"
#include "nsISecureBrowserUI.h"
#include "nsISeekableStream.h"
#include "nsISelectionDisplay.h"
#include "nsISHEntry.h"
#include "nsISiteSecurityService.h"
#include "nsISocketProvider.h"
#include "nsIStringBundle.h"
#include "nsIStructuredCloneContainer.h"
#include "nsIBrowserChild.h"
#include "nsITextToSubURI.h"
#include "nsITimedChannel.h"
#include "nsITimer.h"
#include "nsITransportSecurityInfo.h"
#include "nsIUploadChannel.h"
#include "nsIURIFixup.h"
#include "nsIURIMutator.h"
#include "nsIURILoader.h"
#include "nsIViewSourceChannel.h"
#include "nsIWebBrowserChrome.h"
#include "nsIWebBrowserChromeFocus.h"
#include "nsIWebBrowserFind.h"
#include "nsIWebProgress.h"
#include "nsIWidget.h"
#include "nsIWindowWatcher.h"
#include "nsIWritablePropertyBag2.h"
#include "nsIX509Cert.h"
#include "nsIXULRuntime.h"
#include "nsCommandManager.h"
#include "nsPIDOMWindow.h"
#include "nsPIWindowRoot.h"
#include "IHistory.h"
#include "IUrlClassifierUITelemetry.h"
#include "nsArray.h"
#include "nsArrayUtils.h"
#include "nsCExternalHandlerService.h"
#include "nsContentDLF.h"
#include "nsContentPolicyUtils.h" // NS_CheckContentLoadPolicy(...)
#include "nsContentSecurityManager.h"
#include "nsContentSecurityUtils.h"
#include "nsContentUtils.h"
#include "nsCURILoader.h"
#include "nsDocShellCID.h"
#include "nsDocShellEditorData.h"
#include "nsDocShellEnumerator.h"
#include "nsDocShellLoadState.h"
#include "nsDocShellLoadTypes.h"
#include "nsDOMCID.h"
#include "nsDOMNavigationTiming.h"
#include "nsDSURIContentListener.h"
#include "nsEditingSession.h"
#include "nsError.h"
#include "nsEscape.h"
#include "nsFocusManager.h"
#include "nsGlobalWindow.h"
#include "nsJSEnvironment.h"
#include "nsNetCID.h"
#include "nsNetUtil.h"
#include "nsObjectLoadingContent.h"
#include "nsPingListener.h"
#include "nsPoint.h"
#include "nsQueryObject.h"
#include "nsQueryActor.h"
#include "nsRect.h"
#include "nsRefreshTimer.h"
#include "nsSandboxFlags.h"
#include "nsSHEntry.h"
#include "nsSHistory.h"
#include "nsSHEntry.h"
#include "nsStructuredCloneContainer.h"
#include "nsSubDocumentFrame.h"
#include "nsURILoader.h"
#include "nsURLHelper.h"
#include "nsView.h"
#include "nsViewManager.h"
#include "nsViewSourceHandler.h"
#include "nsWebBrowserFind.h"
#include "nsWhitespaceTokenizer.h"
#include "nsWidgetsCID.h"
#include "nsXULAppAPI.h"
#include "ThirdPartyUtil.h"
#include "BRNameMatchingPolicy.h"
#include "GeckoProfiler.h"
#include "mozilla/NullPrincipal.h"
#include "Navigator.h"
#include "prenv.h"
#include "mozilla/ipc/URIUtils.h"
#include "sslerr.h"
#include "mozpkix/pkix.h"
#include "NSSErrorsService.h"
#include "timeline/JavascriptTimelineMarker.h"
#include "nsDocShellTelemetryUtils.h"
#ifdef MOZ_PLACES
# include "nsIFaviconService.h"
# include "mozIPlacesPendingOperation.h"
#endif
#if NS_PRINT_PREVIEW
# include "nsIDocumentViewerPrint.h"
# include "nsIWebBrowserPrint.h"
#endif
using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::net;
using mozilla::ipc::Endpoint;
// Threshold value in ms for META refresh based redirects
#define REFRESH_REDIRECT_TIMER 15000
// Hint for native dispatch of events on how long to delay after
// all documents have loaded in milliseconds before favoring normal
// native event dispatch priorites over performance
// Can be overridden with docshell.event_starvation_delay_hint pref.
#define NS_EVENT_STARVATION_DELAY_HINT 2000
static NS_DEFINE_CID(kAppShellCID, NS_APPSHELL_CID);
// Number of documents currently loading
static int32_t gNumberOfDocumentsLoading = 0;
static mozilla::LazyLogModule gCharsetMenuLog("CharsetMenu");
#define LOGCHARSETMENU(args) \
MOZ_LOG(gCharsetMenuLog, mozilla::LogLevel::Debug, args)
#ifdef DEBUG
unsigned long nsDocShell::gNumberOfDocShells = 0;
static uint64_t gDocshellIDCounter = 0;
static mozilla::LazyLogModule gDocShellLog("nsDocShell");
static mozilla::LazyLogModule gDocShellAndDOMWindowLeakLogging(
"DocShellAndDOMWindowLeak");
#endif
static mozilla::LazyLogModule gDocShellLeakLog("nsDocShellLeak");
extern mozilla::LazyLogModule gPageCacheLog;
mozilla::LazyLogModule gSHLog("SessionHistory");
extern mozilla::LazyLogModule gSHIPBFCacheLog;
const char kAppstringsBundleURL[] =
"chrome://global/locale/appstrings.properties";
static void FavorPerformanceHint(bool aPerfOverStarvation) {
nsCOMPtr<nsIAppShell> appShell = do_GetService(kAppShellCID);
if (appShell) {
appShell->FavorPerformanceHint(
aPerfOverStarvation,
Preferences::GetUint("docshell.event_starvation_delay_hint",
NS_EVENT_STARVATION_DELAY_HINT));
}
}
static bool IsTopLevelDoc(BrowsingContext* aBrowsingContext,
nsILoadInfo* aLoadInfo) {
MOZ_ASSERT(aBrowsingContext);
MOZ_ASSERT(aLoadInfo);
if (aLoadInfo->GetExternalContentPolicyType() !=
ExtContentPolicy::TYPE_DOCUMENT) {
return false;
}
return aBrowsingContext->IsTopContent();
}
// True if loading for top level document loading in active tab.
static bool IsUrgentStart(BrowsingContext* aBrowsingContext,
nsILoadInfo* aLoadInfo, uint32_t aLoadType) {
MOZ_ASSERT(aBrowsingContext);
MOZ_ASSERT(aLoadInfo);
if (!IsTopLevelDoc(aBrowsingContext, aLoadInfo)) {
return false;
}
if (aLoadType &
(nsIDocShell::LOAD_CMD_NORMAL | nsIDocShell::LOAD_CMD_HISTORY)) {
return true;
}
return aBrowsingContext->IsActive();
}
nsDocShell::nsDocShell(BrowsingContext* aBrowsingContext,
uint64_t aContentWindowID)
: nsDocLoader(true),
mContentWindowID(aContentWindowID),
mBrowsingContext(aBrowsingContext),
mParentCharset(nullptr),
mTreeOwner(nullptr),
mScrollbarPref(ScrollbarPreference::Auto),
mCharsetReloadState(eCharsetReloadInit),
mParentCharsetSource(0),
mFrameMargins(-1, -1),
mItemType(aBrowsingContext->IsContent() ? typeContent : typeChrome),
mPreviousEntryIndex(-1),
mLoadedEntryIndex(-1),
mBusyFlags(BUSY_FLAGS_NONE),
mAppType(nsIDocShell::APP_TYPE_UNKNOWN),
mLoadType(0),
mFailedLoadType(0),
mJSRunToCompletionDepth(0),
mMetaViewportOverride(nsIDocShell::META_VIEWPORT_OVERRIDE_NONE),
mChannelToDisconnectOnPageHide(0),
mCreatingDocument(false),
#ifdef DEBUG
mInEnsureScriptEnv(false),
#endif
mInitialized(false),
mAllowSubframes(true),
mAllowMetaRedirects(true),
mAllowImages(true),
mAllowMedia(true),
mAllowDNSPrefetch(true),
mAllowWindowControl(true),
mCSSErrorReportingEnabled(false),
mAllowAuth(mItemType == typeContent),
mAllowKeywordFixup(false),
mDisableMetaRefreshWhenInactive(false),
mIsAppTab(false),
mDeviceSizeIsPageSize(false),
mWindowDraggingAllowed(false),
mInFrameSwap(false),
mFiredUnloadEvent(false),
mEODForCurrentDocument(false),
mURIResultedInDocument(false),
mIsBeingDestroyed(false),
mIsExecutingOnLoadHandler(false),
mSavingOldViewer(false),
mInvisible(false),
mHasLoadedNonBlankURI(false),
mBlankTiming(false),
mTitleValidForCurrentURI(false),
mWillChangeProcess(false),
mIsNavigating(false),
mSuspendMediaWhenInactive(false),
mForcedAutodetection(false),
mCheckingSessionHistory(false),
mNeedToReportActiveAfterLoadingBecomesActive(false) {
// If no outer window ID was provided, generate a new one.
if (aContentWindowID == 0) {
mContentWindowID = nsContentUtils::GenerateWindowId();
}
MOZ_LOG(gDocShellLeakLog, LogLevel::Debug, ("DOCSHELL %p created\n", this));
#ifdef DEBUG
mDocShellID = gDocshellIDCounter++;
// We're counting the number of |nsDocShells| to help find leaks
++gNumberOfDocShells;
MOZ_LOG(gDocShellAndDOMWindowLeakLogging, LogLevel::Info,
("++DOCSHELL %p == %ld [pid = %d] [id = %" PRIu64 "]\n", (void*)this,
gNumberOfDocShells, getpid(), mDocShellID));
#endif
}
nsDocShell::~nsDocShell() {
MOZ_ASSERT(!mObserved);
// Avoid notifying observers while we're in the dtor.
mIsBeingDestroyed = true;
Destroy();
if (mContentViewer) {
mContentViewer->Close(nullptr);
mContentViewer->Destroy();
mContentViewer = nullptr;
}
MOZ_LOG(gDocShellLeakLog, LogLevel::Debug, ("DOCSHELL %p destroyed\n", this));
#ifdef DEBUG
if (MOZ_LOG_TEST(gDocShellAndDOMWindowLeakLogging, LogLevel::Info)) {
nsAutoCString url;
if (mLastOpenedURI) {
url = mLastOpenedURI->GetSpecOrDefault();
// Data URLs can be very long, so truncate to avoid flooding the log.
const uint32_t maxURLLength = 1000;
if (url.Length() > maxURLLength) {
url.Truncate(maxURLLength);
}
}
// We're counting the number of |nsDocShells| to help find leaks
--gNumberOfDocShells;
MOZ_LOG(
gDocShellAndDOMWindowLeakLogging, LogLevel::Info,
("--DOCSHELL %p == %ld [pid = %d] [id = %" PRIu64 "] [url = %s]\n",
(void*)this, gNumberOfDocShells, getpid(), mDocShellID, url.get()));
}
#endif
}
bool nsDocShell::Initialize() {
if (mInitialized) {
// We've already been initialized.
return true;
}
NS_ASSERTION(mItemType == typeContent || mItemType == typeChrome,
"Unexpected item type in docshell");
NS_ENSURE_TRUE(Preferences::GetRootBranch(), false);
mInitialized = true;
mDisableMetaRefreshWhenInactive =
Preferences::GetBool("browser.meta_refresh_when_inactive.disabled",
mDisableMetaRefreshWhenInactive);
mDeviceSizeIsPageSize = Preferences::GetBool(
"docshell.device_size_is_page_size", mDeviceSizeIsPageSize);
if (nsCOMPtr<nsIObserverService> serv = services::GetObserverService()) {
const char* msg = mItemType == typeContent ? NS_WEBNAVIGATION_CREATE
: NS_CHROME_WEBNAVIGATION_CREATE;
serv->NotifyWhenScriptSafe(GetAsSupports(this), msg, nullptr);
}
return true;
}
/* static */
already_AddRefed<nsDocShell> nsDocShell::Create(
BrowsingContext* aBrowsingContext, uint64_t aContentWindowID) {
MOZ_ASSERT(aBrowsingContext, "DocShell without a BrowsingContext!");
nsresult rv;
RefPtr<nsDocShell> ds = new nsDocShell(aBrowsingContext, aContentWindowID);
// Initialize the underlying nsDocLoader.
rv = ds->nsDocLoader::InitWithBrowsingContext(aBrowsingContext);
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
// Create our ContentListener
ds->mContentListener = new nsDSURIContentListener(ds);
// We enable if we're in the parent process in order to support non-e10s
// configurations.
// Note: This check is duplicated in SharedWorkerInterfaceRequestor's
// constructor.
if (XRE_IsParentProcess()) {
ds->mInterceptController = new ServiceWorkerInterceptController();
}
// We want to hold a strong ref to the loadgroup, so it better hold a weak
// ref to us... use an InterfaceRequestorProxy to do this.
nsCOMPtr<nsIInterfaceRequestor> proxy = new InterfaceRequestorProxy(ds);
ds->mLoadGroup->SetNotificationCallbacks(proxy);
// XXX(nika): We have our BrowsingContext, so we might be able to skip this.
// It could be nice to directly set up our DocLoader tree?
rv = nsDocLoader::AddDocLoaderAsChildOfRoot(ds);
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
// Add |ds| as a progress listener to itself. A little weird, but simpler
// than reproducing all the listener-notification logic in overrides of the
// various methods via which nsDocLoader can be notified. Note that this
// holds an nsWeakPtr to |ds|, so it's ok.
rv = ds->AddProgressListener(ds, nsIWebProgress::NOTIFY_STATE_DOCUMENT |
nsIWebProgress::NOTIFY_STATE_NETWORK |
nsIWebProgress::NOTIFY_LOCATION);
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
// If our BrowsingContext has private browsing enabled, update the number of
// private browsing docshells.
if (aBrowsingContext->UsePrivateBrowsing()) {
ds->NotifyPrivateBrowsingChanged();
}
// If our parent window is present in this process, set up our parent now.
RefPtr<WindowContext> parentWC = aBrowsingContext->GetParentWindowContext();
if (parentWC && parentWC->IsInProcess()) {
// If we don't have a parent element anymore, we can't finish this load!
// How'd we get here?
RefPtr<Element> parentElement = aBrowsingContext->GetEmbedderElement();
if (!parentElement) {
MOZ_ASSERT_UNREACHABLE("nsDocShell::Create() - !parentElement");
return nullptr;
}
// We have an in-process parent window, but don't have a parent nsDocShell?
// How'd we get here!
nsCOMPtr<nsIDocShell> parentShell =
parentElement->OwnerDoc()->GetDocShell();
if (!parentShell) {
MOZ_ASSERT_UNREACHABLE("nsDocShell::Create() - !parentShell");
return nullptr;
}
parentShell->AddChild(ds);
}
// Make |ds| the primary DocShell for the given context.
aBrowsingContext->SetDocShell(ds);
// Set |ds| default load flags on load group.
ds->SetLoadGroupDefaultLoadFlags(aBrowsingContext->GetDefaultLoadFlags());
if (XRE_IsParentProcess()) {
aBrowsingContext->Canonical()->MaybeAddAsProgressListener(ds);
}
return ds.forget();
}
void nsDocShell::DestroyChildren() {
for (auto* child : mChildList.ForwardRange()) {
nsCOMPtr<nsIDocShellTreeItem> shell = do_QueryObject(child);
NS_ASSERTION(shell, "docshell has null child");
if (shell) {
shell->SetTreeOwner(nullptr);
}
}
nsDocLoader::DestroyChildren();
}
NS_IMPL_CYCLE_COLLECTION_WEAK_PTR_INHERITED(nsDocShell, nsDocLoader,
mScriptGlobal, mInitialClientSource,
mBrowsingContext,
mChromeEventHandler)
NS_IMPL_ADDREF_INHERITED(nsDocShell, nsDocLoader)
NS_IMPL_RELEASE_INHERITED(nsDocShell, nsDocLoader)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsDocShell)
NS_INTERFACE_MAP_ENTRY(nsIDocShell)
NS_INTERFACE_MAP_ENTRY(nsIDocShellTreeItem)
NS_INTERFACE_MAP_ENTRY(nsIWebNavigation)
NS_INTERFACE_MAP_ENTRY(nsIBaseWindow)
NS_INTERFACE_MAP_ENTRY(nsIRefreshURI)
NS_INTERFACE_MAP_ENTRY(nsIWebProgressListener)
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
NS_INTERFACE_MAP_ENTRY(nsIWebPageDescriptor)
NS_INTERFACE_MAP_ENTRY(nsIAuthPromptProvider)
NS_INTERFACE_MAP_ENTRY(nsILoadContext)
NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsINetworkInterceptController,
mInterceptController)
NS_INTERFACE_MAP_END_INHERITING(nsDocLoader)
NS_IMETHODIMP
nsDocShell::GetInterface(const nsIID& aIID, void** aSink) {
MOZ_ASSERT(aSink, "null out param");
*aSink = nullptr;
if (aIID.Equals(NS_GET_IID(nsICommandManager))) {
NS_ENSURE_SUCCESS(EnsureCommandHandler(), NS_ERROR_FAILURE);
*aSink = static_cast<nsICommandManager*>(mCommandManager.get());
} else if (aIID.Equals(NS_GET_IID(nsIURIContentListener))) {
*aSink = mContentListener;
} else if ((aIID.Equals(NS_GET_IID(nsIScriptGlobalObject)) ||
aIID.Equals(NS_GET_IID(nsIGlobalObject)) ||
aIID.Equals(NS_GET_IID(nsPIDOMWindowOuter)) ||
aIID.Equals(NS_GET_IID(mozIDOMWindowProxy)) ||
aIID.Equals(NS_GET_IID(nsIDOMWindow))) &&
NS_SUCCEEDED(EnsureScriptEnvironment())) {
return mScriptGlobal->QueryInterface(aIID, aSink);
} else if (aIID.Equals(NS_GET_IID(Document)) &&
NS_SUCCEEDED(EnsureContentViewer())) {
RefPtr<Document> doc = mContentViewer->GetDocument();
doc.forget(aSink);
return *aSink ? NS_OK : NS_NOINTERFACE;
} else if (aIID.Equals(NS_GET_IID(nsIPrompt)) &&
NS_SUCCEEDED(EnsureScriptEnvironment())) {
nsresult rv;
nsCOMPtr<nsIWindowWatcher> wwatch =
do_GetService(NS_WINDOWWATCHER_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, rv);
// Get the an auth prompter for our window so that the parenting
// of the dialogs works as it should when using tabs.
nsIPrompt* prompt;
rv = wwatch->GetNewPrompter(mScriptGlobal, &prompt);
NS_ENSURE_SUCCESS(rv, rv);
*aSink = prompt;
return NS_OK;
} else if (aIID.Equals(NS_GET_IID(nsIAuthPrompt)) ||
aIID.Equals(NS_GET_IID(nsIAuthPrompt2))) {
return NS_SUCCEEDED(GetAuthPrompt(PROMPT_NORMAL, aIID, aSink))
? NS_OK
: NS_NOINTERFACE;
} else if (aIID.Equals(NS_GET_IID(nsISHistory))) {
// This is deprecated, you should instead directly get
// ChildSHistory from the browsing context.
MOZ_DIAGNOSTIC_ASSERT(
false, "Do not try to get a nsISHistory interface from nsIDocShell");
return NS_NOINTERFACE;
} else if (aIID.Equals(NS_GET_IID(nsIWebBrowserFind))) {
nsresult rv = EnsureFind();
if (NS_FAILED(rv)) {
return rv;
}
*aSink = mFind;
NS_ADDREF((nsISupports*)*aSink);
return NS_OK;
} else if (aIID.Equals(NS_GET_IID(nsISelectionDisplay))) {
if (PresShell* presShell = GetPresShell()) {
return presShell->QueryInterface(aIID, aSink);
}
} else if (aIID.Equals(NS_GET_IID(nsIDocShellTreeOwner))) {
nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
nsresult rv = GetTreeOwner(getter_AddRefs(treeOwner));
if (NS_SUCCEEDED(rv) && treeOwner) {
return treeOwner->QueryInterface(aIID, aSink);
}
} else if (aIID.Equals(NS_GET_IID(nsIBrowserChild))) {
*aSink = GetBrowserChild().take();
return *aSink ? NS_OK : NS_ERROR_FAILURE;
} else {
return nsDocLoader::GetInterface(aIID, aSink);
}
NS_IF_ADDREF(((nsISupports*)*aSink));
return *aSink ? NS_OK : NS_NOINTERFACE;
}
NS_IMETHODIMP
nsDocShell::SetCancelContentJSEpoch(int32_t aEpoch) {
// Note: this gets called fairly early (before a pageload actually starts).
// We could probably defer this even longer.
nsCOMPtr<nsIBrowserChild> browserChild = GetBrowserChild();
static_cast<BrowserChild*>(browserChild.get())
->SetCancelContentJSEpoch(aEpoch);
return NS_OK;
}
nsresult nsDocShell::CheckDisallowedJavascriptLoad(
nsDocShellLoadState* aLoadState) {
if (!net::SchemeIsJavascript(aLoadState->URI())) {
return NS_OK;
}
if (nsCOMPtr<nsIPrincipal> targetPrincipal =
GetInheritedPrincipal(/* aConsiderCurrentDocument */ true)) {
if (!aLoadState->TriggeringPrincipal()->Subsumes(targetPrincipal)) {
return NS_ERROR_DOM_BAD_CROSS_ORIGIN_URI;
}
return NS_OK;
}
return NS_ERROR_DOM_BAD_CROSS_ORIGIN_URI;
}
NS_IMETHODIMP
nsDocShell::LoadURI(nsDocShellLoadState* aLoadState, bool aSetNavigating) {
return LoadURI(aLoadState, aSetNavigating, false);
}
nsresult nsDocShell::LoadURI(nsDocShellLoadState* aLoadState,
bool aSetNavigating,
bool aContinueHandlingSubframeHistory) {
MOZ_ASSERT(aLoadState, "Must have a valid load state!");
// NOTE: This comparison between what appears to be internal/external load
// flags is intentional, as it's ensuring that the caller isn't using any of
// the flags reserved for implementations by the `nsIWebNavigation` interface.
// In the future, this check may be dropped.
MOZ_ASSERT(
(aLoadState->LoadFlags() & INTERNAL_LOAD_FLAGS_LOADURI_SETUP_FLAGS) == 0,
"Should not have these flags set");
MOZ_ASSERT(aLoadState->TargetBrowsingContext().IsNull(),
"Targeting doesn't occur until InternalLoad");
if (!aLoadState->TriggeringPrincipal()) {
MOZ_ASSERT(false, "LoadURI must have a triggering principal");
return NS_ERROR_FAILURE;
}
MOZ_TRY(CheckDisallowedJavascriptLoad(aLoadState));
bool oldIsNavigating = mIsNavigating;
auto cleanupIsNavigating =
MakeScopeExit([&]() { mIsNavigating = oldIsNavigating; });
if (aSetNavigating) {
mIsNavigating = true;
}
PopupBlocker::PopupControlState popupState = PopupBlocker::openOverridden;
if (aLoadState->HasLoadFlags(LOAD_FLAGS_ALLOW_POPUPS)) {
popupState = PopupBlocker::openAllowed;
// If we allow popups as part of the navigation, ensure we fake a user
// interaction, so that popups can, in fact, be allowed to open.
if (WindowContext* wc = mBrowsingContext->GetCurrentWindowContext()) {
wc->NotifyUserGestureActivation();
}
}
AutoPopupStatePusher statePusher(popupState);
if (aLoadState->GetCancelContentJSEpoch().isSome()) {
SetCancelContentJSEpoch(*aLoadState->GetCancelContentJSEpoch());
}
// Note: we allow loads to get through here even if mFiredUnloadEvent is
// true; that case will get handled in LoadInternal or LoadHistoryEntry,
// so we pass false as the second parameter to IsNavigationAllowed.
// However, we don't allow the page to change location *in the middle of*
// firing beforeunload, so we do need to check if *beforeunload* is currently
// firing, so we call IsNavigationAllowed rather than just IsPrintingOrPP.
if (!IsNavigationAllowed(true, false)) {
return NS_OK; // JS may not handle returning of an error code
}
nsLoadFlags defaultLoadFlags = mBrowsingContext->GetDefaultLoadFlags();
if (aLoadState->HasLoadFlags(LOAD_FLAGS_FORCE_TRR)) {
defaultLoadFlags |= nsIRequest::LOAD_TRR_ONLY_MODE;
} else if (aLoadState->HasLoadFlags(LOAD_FLAGS_DISABLE_TRR)) {
defaultLoadFlags |= nsIRequest::LOAD_TRR_DISABLED_MODE;
}
MOZ_ALWAYS_SUCCEEDS(mBrowsingContext->SetDefaultLoadFlags(defaultLoadFlags));
if (!StartupTimeline::HasRecord(StartupTimeline::FIRST_LOAD_URI) &&
mItemType == typeContent && !NS_IsAboutBlank(aLoadState->URI())) {
StartupTimeline::RecordOnce(StartupTimeline::FIRST_LOAD_URI);
}
// LoadType used to be set to a default value here, if no LoadInfo/LoadState
// object was passed in. That functionality has been removed as of bug
// 1492648. LoadType should now be set up by the caller at the time they
// create their nsDocShellLoadState object to pass into LoadURI.
MOZ_LOG(
gDocShellLeakLog, LogLevel::Debug,
("nsDocShell[%p]: loading %s with flags 0x%08x", this,
aLoadState->URI()->GetSpecOrDefault().get(), aLoadState->LoadFlags()));
if ((!aLoadState->LoadIsFromSessionHistory() &&
!LOAD_TYPE_HAS_FLAGS(aLoadState->LoadType(),
LOAD_FLAGS_REPLACE_HISTORY)) ||
aContinueHandlingSubframeHistory) {
// This is possibly a subframe, so handle it accordingly.
//
// If history exists, it will be loaded into the aLoadState object, and the
// LoadType will be changed.
if (MaybeHandleSubframeHistory(aLoadState,
aContinueHandlingSubframeHistory)) {
// MaybeHandleSubframeHistory returns true if we need to continue loading
// asynchronously.
return NS_OK;
}
}
if (aLoadState->LoadIsFromSessionHistory()) {
MOZ_LOG(gSHLog, LogLevel::Debug,
("nsDocShell[%p]: loading from session history", this));
if (!mozilla::SessionHistoryInParent()) {
return LoadHistoryEntry(aLoadState->SHEntry(), aLoadState->LoadType(),
aLoadState->HasValidUserGestureActivation());
}
// FIXME Null check aLoadState->GetLoadingSessionHistoryInfo()?
return LoadHistoryEntry(*aLoadState->GetLoadingSessionHistoryInfo(),
aLoadState->LoadType(),
aLoadState->HasValidUserGestureActivation());
}
// On history navigation via Back/Forward buttons, don't execute
// automatic JavaScript redirection such as |location.href = ...| or
// |window.open()|
//
// LOAD_NORMAL: window.open(...) etc.
// LOAD_STOP_CONTENT: location.href = ..., location.assign(...)
if ((aLoadState->LoadType() == LOAD_NORMAL ||
aLoadState->LoadType() == LOAD_STOP_CONTENT) &&
ShouldBlockLoadingForBackButton()) {
return NS_OK;
}
BrowsingContext::Type bcType = mBrowsingContext->GetType();
// Set up the inheriting principal in LoadState.
nsresult rv = aLoadState->SetupInheritingPrincipal(
bcType, mBrowsingContext->OriginAttributesRef());
NS_ENSURE_SUCCESS(rv, rv);
rv = aLoadState->SetupTriggeringPrincipal(
mBrowsingContext->OriginAttributesRef());
NS_ENSURE_SUCCESS(rv, rv);
aLoadState->CalculateLoadURIFlags();
MOZ_ASSERT(aLoadState->TypeHint().IsVoid(),
"Typehint should be null when calling InternalLoad from LoadURI");
MOZ_ASSERT(aLoadState->FileName().IsVoid(),
"FileName should be null when calling InternalLoad from LoadURI");
MOZ_ASSERT(!aLoadState->LoadIsFromSessionHistory(),
"Shouldn't be loading from an entry when calling InternalLoad "
"from LoadURI");
// If we have a system triggering principal, we can assume that this load was
// triggered by some UI in the browser chrome, such as the URL bar or
// bookmark bar. This should count as a user interaction for the current sh
// entry, so that the user may navigate back to the current entry, from the
// entry that is going to be added as part of this load.
nsCOMPtr<nsIPrincipal> triggeringPrincipal =
aLoadState->TriggeringPrincipal();
if (triggeringPrincipal && triggeringPrincipal->IsSystemPrincipal()) {
if (mozilla::SessionHistoryInParent()) {
WindowContext* topWc = mBrowsingContext->GetTopWindowContext();
if (topWc && !topWc->IsDiscarded()) {
MOZ_ALWAYS_SUCCEEDS(topWc->SetSHEntryHasUserInteraction(true));
}
} else {
bool oshe = false;
nsCOMPtr<nsISHEntry> currentSHEntry;
GetCurrentSHEntry(getter_AddRefs(currentSHEntry), &oshe);
if (currentSHEntry) {
currentSHEntry->SetHasUserInteraction(true);
}
}
}
rv = InternalLoad(aLoadState);
NS_ENSURE_SUCCESS(rv, rv);
if (aLoadState->GetOriginalURIString().isSome()) {
// Save URI string in case it's needed later when
// sending to search engine service in EndPageLoad()
mOriginalUriString = *aLoadState->GetOriginalURIString();
}
return NS_OK;
}
bool nsDocShell::IsLoadingFromSessionHistory() {
return mActiveEntryIsLoadingFromSessionHistory;
}
// StopDetector is modeled similarly to OnloadBlocker; it is a rather
// dummy nsIRequest implementation which can be added to an nsILoadGroup to
// detect Cancel calls.
class StopDetector final : public nsIRequest {
public:
StopDetector() = default;
NS_DECL_ISUPPORTS
NS_DECL_NSIREQUEST
bool Canceled() { return mCanceled; }
private:
~StopDetector() = default;
bool mCanceled = false;
};
NS_IMPL_ISUPPORTS(StopDetector, nsIRequest)
NS_IMETHODIMP
StopDetector::GetName(nsACString& aResult) {
aResult.AssignLiteral("about:stop-detector");
return NS_OK;
}
NS_IMETHODIMP
StopDetector::IsPending(bool* aRetVal) {
*aRetVal = true;
return NS_OK;
}
NS_IMETHODIMP
StopDetector::GetStatus(nsresult* aStatus) {
*aStatus = NS_OK;
return NS_OK;
}
NS_IMETHODIMP
StopDetector::Cancel(nsresult aStatus) {
mCanceled = true;
return NS_OK;
}
NS_IMETHODIMP
StopDetector::Suspend(void) { return NS_OK; }
NS_IMETHODIMP
StopDetector::Resume(void) { return NS_OK; }
NS_IMETHODIMP
StopDetector::GetLoadGroup(nsILoadGroup** aLoadGroup) {
*aLoadGroup = nullptr;
return NS_OK;
}
NS_IMETHODIMP
StopDetector::SetLoadGroup(nsILoadGroup* aLoadGroup) { return NS_OK; }
NS_IMETHODIMP
StopDetector::GetLoadFlags(nsLoadFlags* aLoadFlags) {
*aLoadFlags = nsIRequest::LOAD_NORMAL;
return NS_OK;
}
NS_IMETHODIMP
StopDetector::GetTRRMode(nsIRequest::TRRMode* aTRRMode) {
return GetTRRModeImpl(aTRRMode);
}
NS_IMETHODIMP
StopDetector::SetTRRMode(nsIRequest::TRRMode aTRRMode) {
return SetTRRModeImpl(aTRRMode);
}
NS_IMETHODIMP
StopDetector::SetLoadFlags(nsLoadFlags aLoadFlags) { return NS_OK; }
bool nsDocShell::MaybeHandleSubframeHistory(
nsDocShellLoadState* aLoadState, bool aContinueHandlingSubframeHistory) {
// First, verify if this is a subframe.
// Note, it is ok to rely on docshell here and not browsing context since when
// an iframe is created, it has first in-process docshell.
nsCOMPtr<nsIDocShellTreeItem> parentAsItem;
GetInProcessSameTypeParent(getter_AddRefs(parentAsItem));
nsCOMPtr<nsIDocShell> parentDS(do_QueryInterface(parentAsItem));
if (!parentDS || parentDS == static_cast<nsIDocShell*>(this)) {
if (mBrowsingContext && mBrowsingContext->IsTop()) {
// This is the root docshell. If we got here while
// executing an onLoad Handler,this load will not go
// into session history.
// XXX Why is this code in a method which deals with iframes!
bool inOnLoadHandler = false;
GetIsExecutingOnLoadHandler(&inOnLoadHandler);
if (inOnLoadHandler) {
aLoadState->SetLoadType(LOAD_NORMAL_REPLACE);
}
}
return false;
}
/* OK. It is a subframe. Checkout the parent's loadtype. If the parent was
* loaded through a history mechanism, then get the SH entry for the child