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diff --git a/docshell/base/nsDocShell.h b/docshell/base/nsDocShell.h
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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/. */
+
+#ifndef nsDocShell_h__
+#define nsDocShell_h__
+
+#include "Units.h"
+#include "mozilla/Encoding.h"
+#include "mozilla/Maybe.h"
+#include "mozilla/NotNull.h"
+#include "mozilla/ScrollbarPreferences.h"
+#include "mozilla/UniquePtr.h"
+#include "mozilla/WeakPtr.h"
+#include "mozilla/dom/BrowsingContext.h"
+#include "mozilla/dom/WindowProxyHolder.h"
+#include "nsCOMPtr.h"
+#include "nsCharsetSource.h"
+#include "nsDocLoader.h"
+#include "nsIAuthPromptProvider.h"
+#include "nsIBaseWindow.h"
+#include "nsIDocShell.h"
+#include "nsIDocShellTreeItem.h"
+#include "nsIInterfaceRequestor.h"
+#include "nsILoadContext.h"
+#include "nsINetworkInterceptController.h"
+#include "nsIRefreshURI.h"
+#include "nsIWebNavigation.h"
+#include "nsIWebPageDescriptor.h"
+#include "nsIWebProgressListener.h"
+#include "nsPoint.h" // mCurrent/mDefaultScrollbarPreferences
+#include "nsRect.h"
+#include "nsString.h"
+#include "nsThreadUtils.h"
+#include "prtime.h"
+
+// Interfaces Needed
+
+namespace mozilla {
+class Encoding;
+class HTMLEditor;
+class ObservedDocShell;
+enum class TaskCategory;
+namespace dom {
+class ClientInfo;
+class ClientSource;
+class EventTarget;
+class SessionHistoryInfo;
+struct LoadingSessionHistoryInfo;
+struct Wireframe;
+} // namespace dom
+namespace net {
+class LoadInfo;
+class DocumentLoadListener;
+} // namespace net
+} // namespace mozilla
+
+class nsIController;
+class nsIDocShellTreeOwner;
+class nsIDocumentViewer;
+class nsIHttpChannel;
+class nsIMutableArray;
+class nsIPrompt;
+class nsIScrollableFrame;
+class nsIStringBundle;
+class nsIURIFixup;
+class nsIURIFixupInfo;
+class nsIURILoader;
+class nsIWebBrowserFind;
+class nsIWidget;
+class nsIReferrerInfo;
+
+class nsCommandManager;
+class nsDocShellEditorData;
+class nsDOMNavigationTiming;
+class nsDSURIContentListener;
+class nsGlobalWindowOuter;
+
+class FramingChecker;
+class OnLinkClickEvent;
+
+/* internally used ViewMode types */
+enum ViewMode { viewNormal = 0x0, viewSource = 0x1 };
+
+enum eCharsetReloadState {
+ eCharsetReloadInit,
+ eCharsetReloadRequested,
+ eCharsetReloadStopOrigional
+};
+
+class nsDocShell final : public nsDocLoader,
+ public nsIDocShell,
+ public nsIWebNavigation,
+ public nsIBaseWindow,
+ public nsIRefreshURI,
+ public nsIWebProgressListener,
+ public nsIWebPageDescriptor,
+ public nsIAuthPromptProvider,
+ public nsILoadContext,
+ public nsINetworkInterceptController,
+ public mozilla::SupportsWeakPtr {
+ public:
+ enum InternalLoad : uint32_t {
+ INTERNAL_LOAD_FLAGS_NONE = 0x0,
+ INTERNAL_LOAD_FLAGS_INHERIT_PRINCIPAL = 0x1,
+ INTERNAL_LOAD_FLAGS_DONT_SEND_REFERRER = 0x2,
+ INTERNAL_LOAD_FLAGS_ALLOW_THIRD_PARTY_FIXUP = 0x4,
+
+ // This flag marks the first load in this object
+ // @see nsIWebNavigation::LOAD_FLAGS_FIRST_LOAD
+ INTERNAL_LOAD_FLAGS_FIRST_LOAD = 0x8,
+
+ // The set of flags that should not be set before calling into
+ // nsDocShell::LoadURI and other nsDocShell loading functions.
+ INTERNAL_LOAD_FLAGS_LOADURI_SETUP_FLAGS = 0xf,
+
+ INTERNAL_LOAD_FLAGS_BYPASS_CLASSIFIER = 0x10,
+ INTERNAL_LOAD_FLAGS_FORCE_ALLOW_COOKIES = 0x20,
+
+ // Whether the load should be treated as srcdoc load, rather than a URI one.
+ INTERNAL_LOAD_FLAGS_IS_SRCDOC = 0x40,
+
+ // Whether this is the load of a frame's original src attribute
+ INTERNAL_LOAD_FLAGS_ORIGINAL_FRAME_SRC = 0x80,
+
+ INTERNAL_LOAD_FLAGS_NO_OPENER = 0x100,
+
+ // Whether a top-level data URI navigation is allowed for that load
+ INTERNAL_LOAD_FLAGS_FORCE_ALLOW_DATA_URI = 0x200,
+
+ // Whether the load should go through LoadURIDelegate.
+ INTERNAL_LOAD_FLAGS_BYPASS_LOAD_URI_DELEGATE = 0x2000,
+ };
+
+ // Event type dispatched by RestorePresentation
+ class RestorePresentationEvent : public mozilla::Runnable {
+ public:
+ NS_DECL_NSIRUNNABLE
+ explicit RestorePresentationEvent(nsDocShell* aDs)
+ : mozilla::Runnable("nsDocShell::RestorePresentationEvent"),
+ mDocShell(aDs) {}
+ void Revoke() { mDocShell = nullptr; }
+
+ private:
+ RefPtr<nsDocShell> mDocShell;
+ };
+
+ class InterfaceRequestorProxy : public nsIInterfaceRequestor {
+ public:
+ explicit InterfaceRequestorProxy(nsIInterfaceRequestor* aRequestor);
+ NS_DECL_THREADSAFE_ISUPPORTS
+ NS_DECL_NSIINTERFACEREQUESTOR
+
+ private:
+ virtual ~InterfaceRequestorProxy();
+ InterfaceRequestorProxy() = default;
+ nsWeakPtr mWeakPtr;
+ };
+
+ NS_DECL_ISUPPORTS_INHERITED
+ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsDocShell, nsDocLoader)
+ NS_DECL_NSIDOCSHELL
+ NS_DECL_NSIDOCSHELLTREEITEM
+ NS_DECL_NSIWEBNAVIGATION
+ NS_DECL_NSIBASEWINDOW
+ NS_DECL_NSIINTERFACEREQUESTOR
+ NS_DECL_NSIWEBPROGRESSLISTENER
+ NS_DECL_NSIREFRESHURI
+ NS_DECL_NSIWEBPAGEDESCRIPTOR
+ NS_DECL_NSIAUTHPROMPTPROVIDER
+ NS_DECL_NSINETWORKINTERCEPTCONTROLLER
+
+ // Create a new nsDocShell object.
+ static already_AddRefed<nsDocShell> Create(
+ mozilla::dom::BrowsingContext* aBrowsingContext,
+ uint64_t aContentWindowID = 0);
+
+ bool Initialize();
+
+ NS_IMETHOD Stop() override {
+ // Need this here because otherwise nsIWebNavigation::Stop
+ // overrides the docloader's Stop()
+ return nsDocLoader::Stop();
+ }
+
+ mozilla::ScrollbarPreference ScrollbarPreference() const {
+ return mScrollbarPref;
+ }
+ void SetScrollbarPreference(mozilla::ScrollbarPreference);
+
+ /*
+ * The size, in CSS pixels, of the margins for the <body> of an HTML document
+ * in this docshell; used to implement the marginwidth attribute on HTML
+ * <frame>/<iframe> elements. A value smaller than zero indicates that the
+ * attribute was not set.
+ */
+ const mozilla::CSSIntSize& GetFrameMargins() const { return mFrameMargins; }
+
+ bool UpdateFrameMargins(const mozilla::CSSIntSize& aMargins) {
+ if (mFrameMargins == aMargins) {
+ return false;
+ }
+ mFrameMargins = aMargins;
+ return true;
+ }
+
+ /**
+ * Process a click on a link.
+ *
+ * @param aContent the content object used for triggering the link.
+ * @param aURI a URI object that defines the destination for the link
+ * @param aTargetSpec indicates where the link is targeted (may be an empty
+ * string)
+ * @param aFileName non-null when the link should be downloaded as the given
+ * file
+ * @param aPostDataStream the POST data to send
+ * @param aHeadersDataStream ??? (only used for plugins)
+ * @param aIsTrusted false if the triggerer is an untrusted DOM event.
+ * @param aTriggeringPrincipal, if not passed explicitly we fall back to
+ * the document's principal.
+ * @param aCsp, the CSP to be used for the load, that is the CSP of the
+ * entity responsible for causing the load to occur. Most likely
+ * this is the CSP of the document that started the load. In case
+ * aCsp was not passed explicitly we fall back to using
+ * aContent's document's CSP if that document holds any.
+ */
+ nsresult OnLinkClick(nsIContent* aContent, nsIURI* aURI,
+ const nsAString& aTargetSpec, const nsAString& aFileName,
+ nsIInputStream* aPostDataStream,
+ nsIInputStream* aHeadersDataStream,
+ bool aIsUserTriggered, bool aIsTrusted,
+ nsIPrincipal* aTriggeringPrincipal,
+ nsIContentSecurityPolicy* aCsp);
+ /**
+ * Process a click on a link.
+ *
+ * Works the same as OnLinkClick() except it happens immediately rather than
+ * through an event.
+ *
+ * @param aContent the content object used for triggering the link.
+ * @param aDocShellLoadState the extended load info for this load.
+ * @param aNoOpenerImplied if the link implies "noopener"
+ * @param aTriggeringPrincipal, if not passed explicitly we fall back to
+ * the document's principal.
+ */
+ nsresult OnLinkClickSync(nsIContent* aContent,
+ nsDocShellLoadState* aLoadState,
+ bool aNoOpenerImplied,
+ nsIPrincipal* aTriggeringPrincipal);
+
+ /**
+ * Process a mouse-over a link.
+ *
+ * @param aContent the linked content.
+ * @param aURI an URI object that defines the destination for the link
+ * @param aTargetSpec indicates where the link is targeted (it may be an empty
+ * string)
+ */
+ nsresult OnOverLink(nsIContent* aContent, nsIURI* aURI,
+ const nsAString& aTargetSpec);
+ /**
+ * Process the mouse leaving a link.
+ */
+ nsresult OnLeaveLink();
+
+ // Don't use NS_DECL_NSILOADCONTEXT because some of nsILoadContext's methods
+ // are shared with nsIDocShell and can't be declared twice.
+ NS_IMETHOD GetAssociatedWindow(mozIDOMWindowProxy**) override;
+ NS_IMETHOD GetTopWindow(mozIDOMWindowProxy**) override;
+ NS_IMETHOD GetTopFrameElement(mozilla::dom::Element**) override;
+ NS_IMETHOD GetIsContent(bool*) override;
+ NS_IMETHOD GetUsePrivateBrowsing(bool*) override;
+ NS_IMETHOD SetUsePrivateBrowsing(bool) override;
+ NS_IMETHOD SetPrivateBrowsing(bool) override;
+ NS_IMETHOD GetUseRemoteTabs(bool*) override;
+ NS_IMETHOD SetRemoteTabs(bool) override;
+ NS_IMETHOD GetUseRemoteSubframes(bool*) override;
+ NS_IMETHOD SetRemoteSubframes(bool) override;
+ NS_IMETHOD GetScriptableOriginAttributes(
+ JSContext*, JS::MutableHandle<JS::Value>) override;
+ NS_IMETHOD_(void)
+ GetOriginAttributes(mozilla::OriginAttributes& aAttrs) override;
+
+ // Restores a cached presentation from history (mLSHE).
+ // This method swaps out the content viewer and simulates loads for
+ // subframes. It then simulates the completion of the toplevel load.
+ nsresult RestoreFromHistory();
+
+ /**
+ * Parses the passed in header string and sets up a refreshURI if a "refresh"
+ * header is found. If docshell is busy loading a page currently, the request
+ * will be queued and executed when the current page finishes loading.
+ *
+ * @param aDocument document to which the refresh header applies.
+ * @param aHeader The meta refresh header string.
+ */
+ void SetupRefreshURIFromHeader(mozilla::dom::Document* aDocument,
+ const nsAString& aHeader);
+
+ // Perform a URI load from a refresh timer. This is just like the
+ // ForceRefreshURI method on nsIRefreshURI, but makes sure to take
+ // the timer involved out of mRefreshURIList if it's there.
+ // aTimer must not be null.
+ nsresult ForceRefreshURIFromTimer(nsIURI* aURI, nsIPrincipal* aPrincipal,
+ uint32_t aDelay, nsITimer* aTimer);
+
+ // We need dummy OnLocationChange in some cases to update the UI without
+ // updating security info.
+ void FireDummyOnLocationChange() {
+ FireOnLocationChange(this, nullptr, mCurrentURI,
+ LOCATION_CHANGE_SAME_DOCUMENT);
+ }
+
+ nsresult HistoryEntryRemoved(int32_t aIndex);
+
+ // Notify Scroll observers when an async panning/zooming transform
+ // has started being applied
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY
+ void NotifyAsyncPanZoomStarted();
+
+ // Notify Scroll observers when an async panning/zooming transform
+ // is no longer applied
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY
+ void NotifyAsyncPanZoomStopped();
+
+ void SetInFrameSwap(bool aInSwap) { mInFrameSwap = aInSwap; }
+ bool InFrameSwap();
+
+ bool GetForcedAutodetection() { return mForcedAutodetection; }
+
+ void ResetForcedAutodetection() { mForcedAutodetection = false; }
+
+ mozilla::HTMLEditor* GetHTMLEditorInternal();
+ nsresult SetHTMLEditorInternal(mozilla::HTMLEditor* aHTMLEditor);
+
+ // Handle page navigation due to charset changes
+ nsresult CharsetChangeReloadDocument(
+ mozilla::NotNull<const mozilla::Encoding*> aEncoding, int32_t aSource);
+ nsresult CharsetChangeStopDocumentLoad();
+
+ nsDOMNavigationTiming* GetNavigationTiming() const;
+
+ nsresult SetOriginAttributes(const mozilla::OriginAttributes& aAttrs);
+
+ const mozilla::OriginAttributes& GetOriginAttributes() {
+ return mBrowsingContext->OriginAttributesRef();
+ }
+
+ // Determine whether this docshell corresponds to the given history entry,
+ // via having a pointer to it in mOSHE or mLSHE.
+ bool HasHistoryEntry(nsISHEntry* aEntry) const {
+ return aEntry && (aEntry == mOSHE || aEntry == mLSHE);
+ }
+
+ // Update any pointers (mOSHE or mLSHE) to aOldEntry to point to aNewEntry
+ void SwapHistoryEntries(nsISHEntry* aOldEntry, nsISHEntry* aNewEntry);
+
+ bool GetCreatedDynamically() const {
+ return mBrowsingContext && mBrowsingContext->CreatedDynamically();
+ }
+
+ mozilla::gfx::Matrix5x4* GetColorMatrix() { return mColorMatrix.get(); }
+
+ static bool SandboxFlagsImplyCookies(const uint32_t& aSandboxFlags);
+
+ // Tell the favicon service that aNewURI has the same favicon as aOldURI.
+ static void CopyFavicon(nsIURI* aOldURI, nsIURI* aNewURI,
+ bool aInPrivateBrowsing);
+
+ static nsDocShell* Cast(nsIDocShell* aDocShell) {
+ return static_cast<nsDocShell*>(aDocShell);
+ }
+
+ static bool CanLoadInParentProcess(nsIURI* aURI);
+
+ // Returns true if the current load is a force reload (started by holding
+ // shift while triggering reload)
+ bool IsForceReloading();
+
+ mozilla::dom::WindowProxyHolder GetWindowProxy() {
+ EnsureScriptEnvironment();
+ return mozilla::dom::WindowProxyHolder(mBrowsingContext);
+ }
+
+ /**
+ * Loads the given URI. See comments on nsDocShellLoadState members for more
+ * information on information used.
+ * `aCacheKey` gets passed to DoURILoad call.
+ */
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY
+ nsresult InternalLoad(
+ nsDocShellLoadState* aLoadState,
+ mozilla::Maybe<uint32_t> aCacheKey = mozilla::Nothing());
+
+ void MaybeRestoreWindowName();
+
+ void StoreWindowNameToSHEntries();
+
+ void SetWillChangeProcess() { mWillChangeProcess = true; }
+ bool WillChangeProcess() { return mWillChangeProcess; }
+
+ // Create a content viewer within this nsDocShell for the given
+ // `WindowGlobalChild` actor.
+ nsresult CreateDocumentViewerForActor(
+ mozilla::dom::WindowGlobalChild* aWindowActor);
+
+ // Creates a real network channel (not a DocumentChannel) using the specified
+ // parameters.
+ // Used by nsDocShell when not using DocumentChannel, by DocumentLoadListener
+ // (parent-process DocumentChannel), and by DocumentChannelChild/ContentChild
+ // to transfer the resulting channel into the final process.
+ static nsresult CreateRealChannelForDocument(
+ nsIChannel** aChannel, nsIURI* aURI, nsILoadInfo* aLoadInfo,
+ nsIInterfaceRequestor* aCallbacks, nsLoadFlags aLoadFlags,
+ const nsAString& aSrcdoc, nsIURI* aBaseURI);
+
+ // Creates a real (not DocumentChannel) channel, and configures it using the
+ // supplied nsDocShellLoadState.
+ // Configuration options here are ones that should be applied to only the
+ // real channel, especially ones that need to QI to channel subclasses.
+ static bool CreateAndConfigureRealChannelForLoadState(
+ mozilla::dom::BrowsingContext* aBrowsingContext,
+ nsDocShellLoadState* aLoadState, mozilla::net::LoadInfo* aLoadInfo,
+ nsIInterfaceRequestor* aCallbacks, nsDocShell* aDocShell,
+ const mozilla::OriginAttributes& aOriginAttributes,
+ nsLoadFlags aLoadFlags, uint32_t aCacheKey, nsresult& rv,
+ nsIChannel** aChannel);
+
+ // This is used to deal with errors resulting from a failed page load.
+ // Errors are handled as follows:
+ // 1. Check to see if it's a file not found error or bad content
+ // encoding error.
+ // 2. Send the URI to a keyword server (if enabled)
+ // 3. If the error was DNS failure, then add www and .com to the URI
+ // (if appropriate).
+ // 4. If the www .com additions don't work, try those with an HTTPS scheme
+ // (if appropriate).
+ static already_AddRefed<nsIURI> AttemptURIFixup(
+ nsIChannel* aChannel, nsresult aStatus,
+ const mozilla::Maybe<nsCString>& aOriginalURIString, uint32_t aLoadType,
+ bool aIsTopFrame, bool aAllowKeywordFixup, bool aUsePrivateBrowsing,
+ bool aNotifyKeywordSearchLoading = false,
+ nsIInputStream** aNewPostData = nullptr,
+ bool* outWasSchemelessInput = nullptr);
+
+ static already_AddRefed<nsIURI> MaybeFixBadCertDomainErrorURI(
+ nsIChannel* aChannel, nsIURI* aUrl);
+
+ // Takes aStatus and filters out results that should not display
+ // an error page.
+ // If this returns a failed result, then we should display an error
+ // page with that result.
+ // aSkippedUnknownProtocolNavigation will be set to true if we chose
+ // to skip displaying an error page for an NS_ERROR_UNKNOWN_PROTOCOL
+ // navigation.
+ static nsresult FilterStatusForErrorPage(
+ nsresult aStatus, nsIChannel* aChannel, uint32_t aLoadType,
+ bool aIsTopFrame, bool aUseErrorPages, bool aIsInitialDocument,
+ bool* aSkippedUnknownProtocolNavigation = nullptr);
+
+ // Notify consumers of a search being loaded through the observer service:
+ static void MaybeNotifyKeywordSearchLoading(const nsString& aProvider,
+ const nsString& aKeyword);
+
+ nsDocShell* GetInProcessChildAt(int32_t aIndex);
+
+ static bool ShouldAddURIVisit(nsIChannel* aChannel);
+
+ /**
+ * Helper function that finds the last URI and its transition flags for a
+ * channel.
+ *
+ * This method first checks the channel's property bag to see if previous
+ * info has been saved. If not, it gives back the referrer of the channel.
+ *
+ * @param aChannel
+ * The channel we are transitioning to
+ * @param aURI
+ * Output parameter with the previous URI, not addref'd
+ * @param aChannelRedirectFlags
+ * If a redirect, output parameter with the previous redirect flags
+ * from nsIChannelEventSink
+ */
+ static void ExtractLastVisit(nsIChannel* aChannel, nsIURI** aURI,
+ uint32_t* aChannelRedirectFlags);
+
+ bool HasDocumentViewer() const { return !!mDocumentViewer; }
+
+ static uint32_t ComputeURILoaderFlags(
+ mozilla::dom::BrowsingContext* aBrowsingContext, uint32_t aLoadType);
+
+ void SetLoadingSessionHistoryInfo(
+ const mozilla::dom::LoadingSessionHistoryInfo& aLoadingInfo,
+ bool aNeedToReportActiveAfterLoadingBecomesActive = false);
+ const mozilla::dom::LoadingSessionHistoryInfo*
+ GetLoadingSessionHistoryInfo() {
+ return mLoadingEntry.get();
+ }
+
+ already_AddRefed<nsIInputStream> GetPostDataFromCurrentEntry() const;
+ mozilla::Maybe<uint32_t> GetCacheKeyFromCurrentEntry() const;
+
+ // Loading and/or active entries are only set when session history
+ // in the parent is on.
+ bool FillLoadStateFromCurrentEntry(nsDocShellLoadState& aLoadState);
+
+ static bool ShouldAddToSessionHistory(nsIURI* aURI, nsIChannel* aChannel);
+
+ bool IsOSHE(nsISHEntry* aEntry) const { return mOSHE == aEntry; }
+
+ mozilla::dom::ChildSHistory* GetSessionHistory() {
+ return mBrowsingContext->GetChildSessionHistory();
+ }
+
+ // This returns true only when using session history in parent.
+ bool IsLoadingFromSessionHistory();
+
+ NS_IMETHODIMP OnStartRequest(nsIRequest* aRequest) override;
+ NS_IMETHODIMP OnStopRequest(nsIRequest* aRequest,
+ nsresult aStatusCode) override;
+
+ private: // member functions
+ friend class nsAppShellService;
+ friend class nsDSURIContentListener;
+ friend class FramingChecker;
+ friend class OnLinkClickEvent;
+ friend class nsIDocShell;
+ friend class mozilla::dom::BrowsingContext;
+ friend class mozilla::net::DocumentLoadListener;
+ friend class nsGlobalWindowOuter;
+
+ nsDocShell(mozilla::dom::BrowsingContext* aBrowsingContext,
+ uint64_t aContentWindowID);
+
+ static inline uint32_t PRTimeToSeconds(PRTime aTimeUsec) {
+ return uint32_t(aTimeUsec / PR_USEC_PER_SEC);
+ }
+
+ virtual ~nsDocShell();
+
+ //
+ // nsDocLoader
+ //
+
+ virtual void DestroyChildren() override;
+
+ // Overridden from nsDocLoader, this provides more information than the
+ // normal OnStateChange with flags STATE_REDIRECTING
+ virtual void OnRedirectStateChange(nsIChannel* aOldChannel,
+ nsIChannel* aNewChannel,
+ uint32_t aRedirectFlags,
+ uint32_t aStateFlags) override;
+
+ // Override the parent setter from nsDocLoader
+ virtual nsresult SetDocLoaderParent(nsDocLoader* aLoader) override;
+
+ //
+ // Content Viewer Management
+ //
+
+ nsresult EnsureDocumentViewer();
+
+ // aPrincipal can be passed in if the caller wants. If null is
+ // passed in, the about:blank principal will end up being used.
+ // aCSP, if any, will be used for the new about:blank load.
+ nsresult CreateAboutBlankDocumentViewer(
+ nsIPrincipal* aPrincipal, nsIPrincipal* aPartitionedPrincipal,
+ nsIContentSecurityPolicy* aCSP, nsIURI* aBaseURI, bool aIsInitialDocument,
+ const mozilla::Maybe<nsILoadInfo::CrossOriginEmbedderPolicy>& aCOEP =
+ mozilla::Nothing(),
+ bool aTryToSaveOldPresentation = true, bool aCheckPermitUnload = true,
+ mozilla::dom::WindowGlobalChild* aActor = nullptr);
+
+ nsresult CreateDocumentViewer(const nsACString& aContentType,
+ nsIRequest* aRequest,
+ nsIStreamListener** aContentHandler);
+
+ nsresult NewDocumentViewerObj(const nsACString& aContentType,
+ nsIRequest* aRequest, nsILoadGroup* aLoadGroup,
+ nsIStreamListener** aContentHandler,
+ nsIDocumentViewer** aViewer);
+
+ already_AddRefed<nsILoadURIDelegate> GetLoadURIDelegate();
+
+ nsresult SetupNewViewer(
+ nsIDocumentViewer* aNewViewer,
+ mozilla::dom::WindowGlobalChild* aWindowActor = nullptr);
+
+ //
+ // Session History
+ //
+
+ // Either aChannel or aOwner must be null. If aChannel is
+ // present, the owner should be gotten from it.
+ // If aCloneChildren is true, then our current session history's
+ // children will be cloned onto the new entry. This should be
+ // used when we aren't actually changing the document while adding
+ // the new session history entry.
+ // aCsp is the CSP to be used for the load. That is *not* the CSP
+ // that will be applied to subresource loads within that document
+ // but the CSP for the document load itself. E.g. if that CSP
+ // includes upgrade-insecure-requests, then the new top-level load
+ // will be upgraded to HTTPS.
+ nsresult AddToSessionHistory(nsIURI* aURI, nsIChannel* aChannel,
+ nsIPrincipal* aTriggeringPrincipal,
+ nsIPrincipal* aPrincipalToInherit,
+ nsIPrincipal* aPartitionedPrincipalToInherit,
+ nsIContentSecurityPolicy* aCsp,
+ bool aCloneChildren, nsISHEntry** aNewEntry);
+
+ void UpdateActiveEntry(
+ bool aReplace, const mozilla::Maybe<nsPoint>& aPreviousScrollPos,
+ nsIURI* aURI, nsIURI* aOriginalURI, nsIReferrerInfo* aReferrerInfo,
+ nsIPrincipal* aTriggeringPrincipal, nsIContentSecurityPolicy* aCsp,
+ const nsAString& aTitle, bool aScrollRestorationIsManual,
+ nsIStructuredCloneContainer* aData, bool aURIWasModified);
+
+ nsresult AddChildSHEntry(nsISHEntry* aCloneRef, nsISHEntry* aNewEntry,
+ int32_t aChildOffset, uint32_t aLoadType,
+ bool aCloneChildren);
+
+ nsresult AddChildSHEntryToParent(nsISHEntry* aNewEntry, int32_t aChildOffset,
+ bool aCloneChildren);
+
+ // Call this method to swap in a new history entry to m[OL]SHE, rather than
+ // setting it directly. This completes the navigation in all docshells
+ // in the case of a subframe navigation.
+ // Returns old mOSHE/mLSHE.
+ already_AddRefed<nsISHEntry> SetHistoryEntry(nsCOMPtr<nsISHEntry>* aPtr,
+ nsISHEntry* aEntry);
+
+ // This method calls SetHistoryEntry and updates mOSHE and mLSHE in BC to be
+ // the same as in docshell
+ void SetHistoryEntryAndUpdateBC(const mozilla::Maybe<nsISHEntry*>& aLSHE,
+ const mozilla::Maybe<nsISHEntry*>& aOSHE);
+
+ // If aNotifiedBeforeUnloadListeners is true, "beforeunload" event listeners
+ // were notified by the caller and given the chance to abort the navigation,
+ // and should not be notified again.
+ static nsresult ReloadDocument(
+ nsDocShell* aDocShell, mozilla::dom::Document* aDocument,
+ uint32_t aLoadType, mozilla::dom::BrowsingContext* aBrowsingContext,
+ nsIURI* aCurrentURI, nsIReferrerInfo* aReferrerInfo,
+ bool aNotifiedBeforeUnloadListeners = false);
+
+ public:
+ bool IsAboutBlankLoadOntoInitialAboutBlank(nsIURI* aURI,
+ bool aInheritPrincipal,
+ nsIPrincipal* aPrincipalToInherit);
+
+ private:
+ //
+ // URI Load
+ //
+
+ // Actually open a channel and perform a URI load. Callers need to pass a
+ // non-null aLoadState->TriggeringPrincipal() which initiated the URI load.
+ // Please note that the TriggeringPrincipal will be used for performing
+ // security checks. If aLoadState->URI() is provided by the web, then please
+ // do not pass a SystemPrincipal as the triggeringPrincipal. If
+ // aLoadState()->PrincipalToInherit is null, then no inheritance of any sort
+ // will happen and the load will get a principal based on the URI being
+ // loaded. If the Srcdoc flag is set (INTERNAL_LOAD_FLAGS_IS_SRCDOC), the load
+ // will be considered as a srcdoc load, and the contents of Srcdoc will be
+ // loaded instead of the URI. aLoadState->OriginalURI() will be set as the
+ // originalURI on the channel that does the load. If OriginalURI is null, URI
+ // will be set as the originalURI. If LoadReplace is true, LOAD_REPLACE flag
+ // will be set on the nsIChannel.
+ // If `aCacheKey` is supplied, use it for the session history entry.
+ nsresult DoURILoad(nsDocShellLoadState* aLoadState,
+ mozilla::Maybe<uint32_t> aCacheKey, nsIRequest** aRequest);
+
+ static nsresult AddHeadersToChannel(nsIInputStream* aHeadersData,
+ nsIChannel* aChannel);
+
+ nsresult OpenInitializedChannel(nsIChannel* aChannel,
+ nsIURILoader* aURILoader,
+ uint32_t aOpenFlags);
+ nsresult OpenRedirectedChannel(nsDocShellLoadState* aLoadState);
+
+ void UpdateMixedContentChannelForNewLoad(nsIChannel* aChannel);
+
+ MOZ_CAN_RUN_SCRIPT
+ nsresult ScrollToAnchor(bool aCurHasRef, bool aNewHasRef,
+ nsACString& aNewHash, uint32_t aLoadType);
+
+ // This returns the load type for a form submission (see
+ // https://html.spec.whatwg.org/#form-submission-algorithm). The load type
+ // should be set as soon as the target BC has been determined.
+ uint32_t GetLoadTypeForFormSubmission(
+ mozilla::dom::BrowsingContext* aTargetBC,
+ nsDocShellLoadState* aLoadState);
+
+ private:
+ // Returns true if it is the caller's responsibility to ensure
+ // FireOnLocationChange is called.
+ // In all other cases false is returned.
+ // Either aChannel or aTriggeringPrincipal must be null. If aChannel is
+ // present, the owner should be gotten from it.
+ // If OnNewURI calls AddToSessionHistory, it will pass its
+ // aCloneSHChildren argument as aCloneChildren.
+ // aCsp is the CSP to be used for the load. That is *not* the CSP
+ // that will be applied to subresource loads within that document
+ // but the CSP for the document load itself. E.g. if that CSP
+ // includes upgrade-insecure-requests, then the new top-level load
+ // will be upgraded to HTTPS.
+ bool OnNewURI(nsIURI* aURI, nsIChannel* aChannel,
+ nsIPrincipal* aTriggeringPrincipal,
+ nsIPrincipal* aPrincipalToInherit,
+ nsIPrincipal* aPartitionedPrincipalToInherit,
+ nsIContentSecurityPolicy* aCsp, bool aAddToGlobalHistory,
+ bool aCloneSHChildren);
+
+ public:
+ // If wireframe collection is enabled, will attempt to gather the
+ // wireframe for the document.
+ mozilla::Maybe<mozilla::dom::Wireframe> GetWireframe();
+
+ // If wireframe collection is enabled, will attempt to gather the
+ // wireframe for the document and stash it inside of the active history
+ // entry. Returns true if wireframes were collected.
+ bool CollectWireframe();
+
+ // Helper method that is called when a new document (including any
+ // sub-documents - ie. frames) has been completely loaded.
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY
+ nsresult EndPageLoad(nsIWebProgress* aProgress, nsIChannel* aChannel,
+ nsresult aResult);
+
+ // Builds an error page URI (e.g. about:neterror?etc) for the given aURI
+ // and displays it via the LoadErrorPage() overload below.
+ nsresult LoadErrorPage(nsIURI* aURI, const char16_t* aURL,
+ const char* aErrorPage, const char* aErrorType,
+ const char16_t* aDescription, const char* aCSSClass,
+ nsIChannel* aFailedChannel);
+
+ // This method directly loads aErrorURI as an error page. aFailedURI and
+ // aFailedChannel come from DisplayLoadError() or the LoadErrorPage() overload
+ // above.
+ nsresult LoadErrorPage(nsIURI* aErrorURI, nsIURI* aFailedURI,
+ nsIChannel* aFailedChannel);
+
+ bool DisplayLoadError(nsresult aError, nsIURI* aURI, const char16_t* aURL,
+ nsIChannel* aFailedChannel) {
+ bool didDisplayLoadError = false;
+ DisplayLoadError(aError, aURI, aURL, aFailedChannel, &didDisplayLoadError);
+ return didDisplayLoadError;
+ }
+
+ //
+ // Uncategorized
+ //
+
+ // Get the principal that we'll set on the channel if we're inheriting. If
+ // aConsiderCurrentDocument is true, we try to use the current document if
+ // at all possible. If that fails, we fall back on the parent document.
+ // If that fails too, we force creation of a content viewer and use the
+ // resulting principal. If aConsiderCurrentDocument is false, we just look
+ // at the parent.
+ // If aConsiderPartitionedPrincipal is true, we consider the partitioned
+ // principal instead of the node principal.
+ nsIPrincipal* GetInheritedPrincipal(
+ bool aConsiderCurrentDocument,
+ bool aConsiderPartitionedPrincipal = false);
+
+ /**
+ * Helper function that caches a URI and a transition for saving later.
+ *
+ * @param aChannel
+ * Channel that will have these properties saved
+ * @param aURI
+ * The URI to save for later
+ * @param aChannelRedirectFlags
+ * The nsIChannelEventSink redirect flags to save for later
+ */
+ static void SaveLastVisit(nsIChannel* aChannel, nsIURI* aURI,
+ uint32_t aChannelRedirectFlags);
+
+ /**
+ * Helper function for adding a URI visit using IHistory.
+ *
+ * The IHistory API maintains chains of visits, tracking both HTTP referrers
+ * and redirects for a user session. VisitURI requires the current URI and
+ * the previous URI in the chain.
+ *
+ * Visits can be saved either during a redirect or when the request has
+ * reached its final destination. The previous URI in the visit may be
+ * from another redirect.
+ *
+ * @pre aURI is not null.
+ *
+ * @param aURI
+ * The URI that was just visited
+ * @param aPreviousURI
+ * The previous URI of this visit
+ * @param aChannelRedirectFlags
+ * For redirects, the redirect flags from nsIChannelEventSink
+ * (0 otherwise)
+ * @param aResponseStatus
+ * For HTTP channels, the response code (0 otherwise).
+ */
+ void AddURIVisit(nsIURI* aURI, nsIURI* aPreviousURI,
+ uint32_t aChannelRedirectFlags,
+ uint32_t aResponseStatus = 0);
+
+ /**
+ * Internal helper funtion
+ */
+ static void InternalAddURIVisit(
+ nsIURI* aURI, nsIURI* aPreviousURI, uint32_t aChannelRedirectFlags,
+ uint32_t aResponseStatus, mozilla::dom::BrowsingContext* aBrowsingContext,
+ nsIWidget* aWidget, uint32_t aLoadType, bool aWasUpgraded);
+
+ static already_AddRefed<nsIURIFixupInfo> KeywordToURI(
+ const nsACString& aKeyword, bool aIsPrivateContext);
+
+ // Sets the current document's current state object to the given SHEntry's
+ // state object. The current state object is eventually given to the page
+ // in the PopState event.
+ void SetDocCurrentStateObj(nsISHEntry* aShEntry,
+ mozilla::dom::SessionHistoryInfo* aInfo);
+
+ // Returns true if would have called FireOnLocationChange,
+ // but did not because aFireOnLocationChange was false on entry.
+ // In this case it is the caller's responsibility to ensure
+ // FireOnLocationChange is called.
+ // In all other cases false is returned.
+ bool SetCurrentURI(nsIURI* aURI, nsIRequest* aRequest,
+ bool aFireOnLocationChange, bool aIsInitialAboutBlank,
+ uint32_t aLocationFlags);
+
+ // The following methods deal with saving and restoring content viewers
+ // in session history.
+
+ // mDocumentViewer points to the current content viewer associated with
+ // this docshell. When loading a new document, the content viewer is
+ // either destroyed or stored into a session history entry. To make sure
+ // that destruction happens in a controlled fashion, a given content viewer
+ // is always owned in exactly one of these ways:
+ // 1) The content viewer is active and owned by a docshell's
+ // mDocumentViewer.
+ // 2) The content viewer is still being displayed while we begin loading
+ // a new document. The content viewer is owned by the _new_
+ // content viewer's mPreviousViewer, and has a pointer to the
+ // nsISHEntry where it will eventually be stored. The content viewer
+ // has been close()d by the docshell, which detaches the document from
+ // the window object.
+ // 3) The content viewer is cached in session history. The nsISHEntry
+ // has the only owning reference to the content viewer. The viewer
+ // has released its nsISHEntry pointer to prevent circular ownership.
+ //
+ // When restoring a content viewer from session history, open() is called
+ // to reattach the document to the window object. The content viewer is
+ // then placed into mDocumentViewer and removed from the history entry.
+ // (mDocumentViewer is put into session history as described above, if
+ // applicable).
+
+ // Determines whether we can safely cache the current mDocumentViewer in
+ // session history. This checks a number of factors such as cache policy,
+ // pending requests, and unload handlers.
+ // |aLoadType| should be the load type that will replace the current
+ // presentation. |aNewRequest| should be the request for the document to
+ // be loaded in place of the current document, or null if such a request
+ // has not been created yet. |aNewDocument| should be the document that will
+ // replace the current document.
+ bool CanSavePresentation(uint32_t aLoadType, nsIRequest* aNewRequest,
+ mozilla::dom::Document* aNewDocument,
+ bool aReportBFCacheComboTelemetry);
+
+ static void ReportBFCacheComboTelemetry(uint32_t aCombo);
+
+ // Captures the state of the supporting elements of the presentation
+ // (the "window" object, docshell tree, meta-refresh loads, and security
+ // state) and stores them on |mOSHE|.
+ nsresult CaptureState();
+
+ // Begin the toplevel restore process for |aSHEntry|.
+ // This simulates a channel open, and defers the real work until
+ // RestoreFromHistory is called from a PLEvent.
+ nsresult RestorePresentation(nsISHEntry* aSHEntry, bool* aRestoring);
+
+ // Call BeginRestore(nullptr, false) for each child of this shell.
+ nsresult BeginRestoreChildren();
+
+ // Method to get our current position and size without flushing
+ void DoGetPositionAndSize(int32_t* aX, int32_t* aY, int32_t* aWidth,
+ int32_t* aHeight);
+
+ // Call this when a URI load is handed to us (via OnLinkClick or
+ // InternalLoad). This makes sure that we're not inside unload, or that if
+ // we are it's still OK to load this URI.
+ bool IsOKToLoadURI(nsIURI* aURI);
+
+ // helpers for executing commands
+ nsresult GetControllerForCommand(const char* aCommand,
+ nsIController** aResult);
+
+ // Possibly create a ClientSource object to represent an initial about:blank
+ // window that has not been allocated yet. Normally we try not to create
+ // this about:blank window until something calls GetDocument(). We still need
+ // the ClientSource to exist for this conceptual window, though.
+ //
+ // The ClientSource is created with the given principal if specified. If
+ // the principal is not provided we will attempt to inherit it when we
+ // are sure it will match what the real about:blank window principal
+ // would have been. There are some corner cases where we cannot easily
+ // determine the correct principal and will not create the ClientSource.
+ // In these cases the initial about:blank will appear to not exist until
+ // its real document and window are created.
+ void MaybeCreateInitialClientSource(nsIPrincipal* aPrincipal = nullptr);
+
+ // Determine if a service worker is allowed to control a window in this
+ // docshell with the given URL. If there are any reasons it should not,
+ // this will return false. If true is returned then the window *may* be
+ // controlled. The caller must still consult either the parent controller
+ // or the ServiceWorkerManager to determine if a service worker should
+ // actually control the window.
+ bool ServiceWorkerAllowedToControlWindow(nsIPrincipal* aPrincipal,
+ nsIURI* aURI);
+
+ // Return the ClientInfo for the initial about:blank window, if it exists
+ // or we have speculatively created a ClientSource in
+ // MaybeCreateInitialClientSource(). This can return a ClientInfo object
+ // even if GetExtantDoc() returns nullptr.
+ mozilla::Maybe<mozilla::dom::ClientInfo> GetInitialClientInfo() const;
+
+ /**
+ * Initializes mTiming if it isn't yet.
+ * After calling this, mTiming is non-null. This method returns true if the
+ * initialization of the Timing can be reset (basically this is true if a new
+ * Timing object is created).
+ * In case the loading is aborted, MaybeResetInitTiming() can be called
+ * passing the return value of MaybeInitTiming(): if it's possible to reset
+ * the Timing, this method will do it.
+ */
+ [[nodiscard]] bool MaybeInitTiming();
+ void MaybeResetInitTiming(bool aReset);
+
+ // Convenience method for getting our parent docshell. Can return null
+ already_AddRefed<nsDocShell> GetInProcessParentDocshell();
+
+ // Internal implementation of nsIDocShell::FirePageHideNotification.
+ // If aSkipCheckingDynEntries is true, it will not try to remove dynamic
+ // subframe entries. This is to avoid redundant RemoveDynEntries calls in all
+ // children docshells.
+ // TODO: Convert this to MOZ_CAN_RUN_SCRIPT (bug 1415230)
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY void FirePageHideNotificationInternal(
+ bool aIsUnload, bool aSkipCheckingDynEntries);
+
+ void ThawFreezeNonRecursive(bool aThaw);
+ // TODO: Convert this to MOZ_CAN_RUN_SCRIPT (bug 1415230)
+ MOZ_CAN_RUN_SCRIPT_BOUNDARY void FirePageHideShowNonRecursive(bool aShow);
+
+ nsresult Dispatch(already_AddRefed<nsIRunnable>&& aRunnable);
+
+ void ReattachEditorToWindow(nsISHEntry* aSHEntry);
+ void ClearFrameHistory(nsISHEntry* aEntry);
+ // Determine if this type of load should update history.
+ static bool ShouldUpdateGlobalHistory(uint32_t aLoadType);
+ void UpdateGlobalHistoryTitle(nsIURI* aURI);
+ bool IsSubframe() { return mBrowsingContext->IsSubframe(); }
+ bool CanSetOriginAttributes();
+ bool ShouldBlockLoadingForBackButton();
+ static bool ShouldDiscardLayoutState(nsIHttpChannel* aChannel);
+ bool HasUnloadedParent();
+ bool JustStartedNetworkLoad();
+ bool NavigationBlockedByPrinting(bool aDisplayErrorDialog = true);
+ bool IsNavigationAllowed(bool aDisplayPrintErrorDialog = true,
+ bool aCheckIfUnloadFired = true);
+ nsIScrollableFrame* GetRootScrollFrame();
+ nsIChannel* GetCurrentDocChannel();
+ nsresult EnsureScriptEnvironment();
+ nsresult EnsureEditorData();
+ nsresult EnsureTransferableHookData();
+ nsresult EnsureFind();
+ nsresult EnsureCommandHandler();
+ nsresult RefreshURIFromQueue();
+ void RefreshURIToQueue();
+ nsresult Embed(nsIDocumentViewer* aDocumentViewer,
+ mozilla::dom::WindowGlobalChild* aWindowActor,
+ bool aIsTransientAboutBlank, bool aPersist,
+ nsIRequest* aRequest, nsIURI* aPreviousURI);
+ nsPresContext* GetEldestPresContext();
+ nsresult CheckLoadingPermissions();
+ nsresult LoadHistoryEntry(nsISHEntry* aEntry, uint32_t aLoadType,
+ bool aUserActivation);
+ nsresult LoadHistoryEntry(
+ const mozilla::dom::LoadingSessionHistoryInfo& aEntry, uint32_t aLoadType,
+ bool aUserActivation);
+ nsresult LoadHistoryEntry(nsDocShellLoadState* aLoadState, uint32_t aLoadType,
+ bool aLoadingCurrentEntry);
+ nsresult GetHttpChannel(nsIChannel* aChannel, nsIHttpChannel** aReturn);
+ nsresult ConfirmRepost(bool* aRepost);
+ nsresult GetPromptAndStringBundle(nsIPrompt** aPrompt,
+ nsIStringBundle** aStringBundle);
+ nsresult SetCurScrollPosEx(int32_t aCurHorizontalPos,
+ int32_t aCurVerticalPos);
+ nsPoint GetCurScrollPos();
+
+ already_AddRefed<mozilla::dom::ChildSHistory> GetRootSessionHistory();
+
+ bool CSSErrorReportingEnabled() const { return mCSSErrorReportingEnabled; }
+
+ // Handles retrieval of subframe session history for nsDocShell::LoadURI. If a
+ // load is requested in a subframe of the current DocShell, the subframe
+ // loadType may need to reflect the loadType of the parent document, or in
+ // some cases (like reloads), the history load may need to be cancelled. See
+ // function comments for in-depth logic descriptions.
+ // Returns true if the method itself deals with the load.
+ bool MaybeHandleSubframeHistory(nsDocShellLoadState* aLoadState,
+ bool aContinueHandlingSubframeHistory);
+
+ // If we are passed a named target during InternalLoad, this method handles
+ // moving the load to the browsing context the target name resolves to.
+ nsresult PerformRetargeting(nsDocShellLoadState* aLoadState);
+
+ // Returns one of nsIContentPolicy::TYPE_DOCUMENT,
+ // nsIContentPolicy::TYPE_INTERNAL_IFRAME, or
+ // nsIContentPolicy::TYPE_INTERNAL_FRAME depending on who is responsible for
+ // this docshell.
+ nsContentPolicyType DetermineContentType();
+
+ // If this is an iframe, and the embedder is OOP, then notifes the
+ // embedder that loading has finished and we shouldn't be blocking
+ // load of the embedder. Only called when we fail to load, as we wait
+ // for the load event of our Document before notifying success.
+ //
+ // If aFireFrameErrorEvent is true, then fires an error event at the
+ // embedder element, for both in-process and OOP embedders.
+ void UnblockEmbedderLoadEventForFailure(bool aFireFrameErrorEvent = false);
+
+ struct SameDocumentNavigationState {
+ nsAutoCString mCurrentHash;
+ nsAutoCString mNewHash;
+ bool mCurrentURIHasRef = false;
+ bool mNewURIHasRef = false;
+ bool mSameExceptHashes = false;
+ bool mSecureUpgradeURI = false;
+ bool mHistoryNavBetweenSameDoc = false;
+ };
+
+ // Check to see if we're loading a prior history entry or doing a fragment
+ // navigation in the same document.
+ // NOTE: In case we are doing a fragment navigation, and HTTPS-Only/ -First
+ // mode is enabled and upgraded the underlying document, we update the URI of
+ // aLoadState from HTTP to HTTPS (if neccessary).
+ bool IsSameDocumentNavigation(nsDocShellLoadState* aLoadState,
+ SameDocumentNavigationState& aState);
+
+ // ... If so, handle the scrolling or other action required instead of
+ // continuing with new document navigation.
+ MOZ_CAN_RUN_SCRIPT
+ nsresult HandleSameDocumentNavigation(nsDocShellLoadState* aLoadState,
+ SameDocumentNavigationState& aState,
+ bool& aSameDocument);
+
+ uint32_t GetSameDocumentNavigationFlags(nsIURI* aNewURI);
+
+ // Called when the Private Browsing state of a nsDocShell changes.
+ void NotifyPrivateBrowsingChanged();
+
+ // Internal helpers for BrowsingContext to pass update values to nsIDocShell's
+ // LoadGroup.
+ void SetLoadGroupDefaultLoadFlags(nsLoadFlags aLoadFlags);
+
+ void SetTitleOnHistoryEntry(bool aUpdateEntryInSessionHistory);
+
+ void SetScrollRestorationIsManualOnHistoryEntry(nsISHEntry* aSHEntry,
+ bool aIsManual);
+
+ void SetCacheKeyOnHistoryEntry(nsISHEntry* aSHEntry, uint32_t aCacheKey);
+
+ // If the LoadState's URI is a javascript: URI, checks that the triggering
+ // principal subsumes the principal of the current document, and returns
+ // NS_ERROR_DOM_BAD_CROSS_ORIGIN_URI if it does not.
+ nsresult CheckDisallowedJavascriptLoad(nsDocShellLoadState* aLoadState);
+
+ nsresult LoadURI(nsDocShellLoadState* aLoadState, bool aSetNavigating,
+ bool aContinueHandlingSubframeHistory);
+
+ // Sets the active entry to the current loading entry. aPersist is used in the
+ // case a new session history entry is added to the session history.
+ // aExpired is true if the relevant nsIChannel has its cache token expired.
+ // aCacheKey is the channel's cache key.
+ // aPreviousURI should be the URI that was previously loaded into the
+ // nsDocshell
+ void MoveLoadingToActiveEntry(bool aPersist, bool aExpired,
+ uint32_t aCacheKey, nsIURI* aPreviousURI);
+
+ void ActivenessMaybeChanged();
+
+ /**
+ * Returns true if `noopener` will be force-enabled by any attempt to create
+ * a popup window, even if rel="opener" is requested.
+ */
+ bool NoopenerForceEnabled();
+
+ bool ShouldOpenInBlankTarget(const nsAString& aOriginalTarget,
+ nsIURI* aLinkURI, nsIContent* aContent,
+ bool aIsUserTriggered);
+
+ void RecordSingleChannelId(bool aStartRequest, nsIRequest* aRequest);
+
+ void SetChannelToDisconnectOnPageHide(uint64_t aChannelId) {
+ MOZ_ASSERT(mChannelToDisconnectOnPageHide == 0);
+ mChannelToDisconnectOnPageHide = aChannelId;
+ }
+ void MaybeDisconnectChildListenersOnPageHide();
+
+ /**
+ * Helper for addState and document.open that does just the
+ * history-manipulation guts.
+ *
+ * Arguments the spec defines:
+ *
+ * @param aDocument the document we're manipulating. This will get the new
+ * URI.
+ * @param aNewURI the new URI.
+ * @param aData The serialized state data. May be null.
+ * @param aTitle The new title. May be empty.
+ * @param aReplace whether this should replace the exising SHEntry.
+ *
+ * Arguments we need internally because deriving them from the
+ * others is a bit complicated:
+ *
+ * @param aCurrentURI the current URI we're working with. Might be null.
+ * @param aEqualURIs whether the two URIs involved are equal.
+ */
+ nsresult UpdateURLAndHistory(mozilla::dom::Document* aDocument,
+ nsIURI* aNewURI,
+ nsIStructuredCloneContainer* aData,
+ const nsAString& aTitle, bool aReplace,
+ nsIURI* aCurrentURI, bool aEqualURIs);
+
+ private:
+ void SetCurrentURIInternal(nsIURI* aURI);
+
+ // data members
+ nsString mTitle;
+ nsCString mOriginalUriString;
+ nsTObserverArray<nsWeakPtr> mPrivacyObservers;
+ nsTObserverArray<nsWeakPtr> mReflowObservers;
+ nsTObserverArray<nsWeakPtr> mScrollObservers;
+ mozilla::UniquePtr<mozilla::dom::ClientSource> mInitialClientSource;
+ nsCOMPtr<nsINetworkInterceptController> mInterceptController;
+ RefPtr<nsDOMNavigationTiming> mTiming;
+ RefPtr<nsDSURIContentListener> mContentListener;
+ RefPtr<nsGlobalWindowOuter> mScriptGlobal;
+ nsCOMPtr<nsIPrincipal> mParentCharsetPrincipal;
+ // The following 3 lists contain either nsITimer or nsRefreshTimer objects.
+ // URIs to refresh are collected to mRefreshURIList.
+ nsCOMPtr<nsIMutableArray> mRefreshURIList;
+ // mSavedRefreshURIList is used to move the entries from mRefreshURIList to
+ // mOSHE.
+ nsCOMPtr<nsIMutableArray> mSavedRefreshURIList;
+ // BFCache-in-parent implementation caches the entries in
+ // mBFCachedRefreshURIList.
+ nsCOMPtr<nsIMutableArray> mBFCachedRefreshURIList;
+ uint64_t mContentWindowID;
+ nsCOMPtr<nsIDocumentViewer> mDocumentViewer;
+ nsCOMPtr<nsIWidget> mParentWidget;
+ RefPtr<mozilla::dom::ChildSHistory> mSessionHistory;
+ nsCOMPtr<nsIWebBrowserFind> mFind;
+ RefPtr<nsCommandManager> mCommandManager;
+ RefPtr<mozilla::dom::BrowsingContext> mBrowsingContext;
+
+ // Weak reference to our BrowserChild actor.
+ nsWeakPtr mBrowserChild;
+
+ // Dimensions of the docshell
+ nsIntRect mBounds;
+
+ /**
+ * Content-Type Hint of the most-recently initiated load. Used for
+ * session history entries.
+ */
+ nsCString mContentTypeHint;
+
+ // mCurrentURI should be marked immutable on set if possible.
+ // Change mCurrentURI only through SetCurrentURIInternal method.
+ nsCOMPtr<nsIURI> mCurrentURI;
+ nsCOMPtr<nsIReferrerInfo> mReferrerInfo;
+
+#ifdef DEBUG
+ // We're counting the number of |nsDocShells| to help find leaks
+ static unsigned long gNumberOfDocShells;
+
+ nsCOMPtr<nsIURI> mLastOpenedURI;
+#endif
+
+ // Reference to the SHEntry for this docshell until the page is destroyed.
+ // Somebody give me better name
+ // Only used when SHIP is disabled.
+ nsCOMPtr<nsISHEntry> mOSHE;
+
+ // Reference to the SHEntry for this docshell until the page is loaded
+ // Somebody give me better name.
+ // If mLSHE is non-null, non-pushState subframe loads don't create separate
+ // root history entries. That is, frames loaded during the parent page
+ // load don't generate history entries the way frame navigation after the
+ // parent has loaded does. (This isn't the only purpose of mLSHE.)
+ // Only used when SHIP is disabled.
+ nsCOMPtr<nsISHEntry> mLSHE;
+
+ // These are only set when fission.sessionHistoryInParent is set.
+ mozilla::UniquePtr<mozilla::dom::SessionHistoryInfo> mActiveEntry;
+ bool mActiveEntryIsLoadingFromSessionHistory = false;
+ // mLoadingEntry is set when we're about to start loading. Whenever
+ // setting mLoadingEntry, be sure to also set
+ // mNeedToReportActiveAfterLoadingBecomesActive.
+ mozilla::UniquePtr<mozilla::dom::LoadingSessionHistoryInfo> mLoadingEntry;
+
+ // Holds a weak pointer to a RestorePresentationEvent object if any that
+ // holds a weak pointer back to us. We use this pointer to possibly revoke
+ // the event whenever necessary.
+ nsRevocableEventPtr<RestorePresentationEvent> mRestorePresentationEvent;
+
+ // Editor data, if this document is designMode or contentEditable.
+ mozilla::UniquePtr<nsDocShellEditorData> mEditorData;
+
+ // The URI we're currently loading. This is only relevant during the
+ // firing of a pagehide/unload. The caller of FirePageHideNotification()
+ // is responsible for setting it and unsetting it. It may be null if the
+ // pagehide/unload is happening for some reason other than just loading a
+ // new URI.
+ nsCOMPtr<nsIURI> mLoadingURI;
+
+ // Set in LoadErrorPage from the method argument and used later
+ // in CreateDocumentViewer. We have to delay an shistory entry creation
+ // for which these objects are needed.
+ nsCOMPtr<nsIURI> mFailedURI;
+ nsCOMPtr<nsIChannel> mFailedChannel;
+
+ mozilla::UniquePtr<mozilla::gfx::Matrix5x4> mColorMatrix;
+
+ const mozilla::Encoding* mParentCharset;
+
+ // WEAK REFERENCES BELOW HERE.
+ // Note these are intentionally not addrefd. Doing so will create a cycle.
+ // For that reasons don't use nsCOMPtr.
+
+ nsIDocShellTreeOwner* mTreeOwner; // Weak Reference
+
+ RefPtr<mozilla::dom::EventTarget> mChromeEventHandler;
+
+ mozilla::ScrollbarPreference mScrollbarPref; // persistent across doc loads
+
+ eCharsetReloadState mCharsetReloadState;
+
+ int32_t mParentCharsetSource;
+ mozilla::CSSIntSize mFrameMargins;
+
+ // This can either be a content docshell or a chrome docshell.
+ const int32_t mItemType;
+
+ // Index into the nsISHEntry array, indicating the previous and current
+ // entry at the time that this DocShell begins to load. Consequently
+ // root docshell's indices can differ from child docshells'.
+ int32_t mPreviousEntryIndex;
+ int32_t mLoadedEntryIndex;
+
+ BusyFlags mBusyFlags;
+ AppType mAppType;
+ uint32_t mLoadType;
+ uint32_t mFailedLoadType;
+
+ // Whether or not handling of the <meta name="viewport"> tag is overridden.
+ // Possible values are defined as constants in nsIDocShell.idl.
+ MetaViewportOverride mMetaViewportOverride;
+
+ // See WindowGlobalParent::mSingleChannelId.
+ mozilla::Maybe<uint64_t> mSingleChannelId;
+ uint32_t mRequestForBlockingFromBFCacheCount = 0;
+
+ uint64_t mChannelToDisconnectOnPageHide;
+
+ uint32_t mPendingReloadCount = 0;
+
+ // The following two fields cannot be declared as bit fields
+ // because of uses with AutoRestore.
+ bool mCreatingDocument; // (should be) debugging only
+#ifdef DEBUG
+ bool mInEnsureScriptEnv;
+ uint64_t mDocShellID = 0;
+#endif
+
+ bool mInitialized : 1;
+ bool mAllowSubframes : 1;
+ bool mAllowMetaRedirects : 1;
+ bool mAllowImages : 1;
+ bool mAllowMedia : 1;
+ bool mAllowDNSPrefetch : 1;
+ bool mAllowWindowControl : 1;
+ bool mCSSErrorReportingEnabled : 1;
+ bool mAllowAuth : 1;
+ bool mAllowKeywordFixup : 1;
+ bool mDisableMetaRefreshWhenInactive : 1;
+ bool mIsAppTab : 1;
+ bool mWindowDraggingAllowed : 1;
+ bool mInFrameSwap : 1;
+
+ // This boolean is set to true right before we fire pagehide and generally
+ // unset when we embed a new content viewer. While it's true no navigation
+ // is allowed in this docshell.
+ bool mFiredUnloadEvent : 1;
+
+ // this flag is for bug #21358. a docshell may load many urls
+ // which don't result in new documents being created (i.e. a new
+ // content viewer) we want to make sure we don't call a on load
+ // event more than once for a given content viewer.
+ bool mEODForCurrentDocument : 1;
+ bool mURIResultedInDocument : 1;
+
+ bool mIsBeingDestroyed : 1;
+
+ bool mIsExecutingOnLoadHandler : 1;
+
+ // Indicates to CreateDocumentViewer() that it is safe to cache the old
+ // presentation of the page, and to SetupNewViewer() that the old viewer
+ // should be passed a SHEntry to save itself into.
+ // Only used with SHIP disabled.
+ bool mSavingOldViewer : 1;
+
+ bool mInvisible : 1;
+ bool mHasLoadedNonBlankURI : 1;
+
+ // This flag means that mTiming has been initialized but nulled out.
+ // We will check the innerWin's timing before creating a new one
+ // in MaybeInitTiming()
+ bool mBlankTiming : 1;
+
+ // This flag indicates when the title is valid for the current URI.
+ bool mTitleValidForCurrentURI : 1;
+
+ // If mWillChangeProcess is set to true, then when the docshell is destroyed,
+ // we prepare the browsing context to change process.
+ bool mWillChangeProcess : 1;
+
+ // This flag indicates whether or not the DocShell is currently executing an
+ // nsIWebNavigation navigation method.
+ bool mIsNavigating : 1;
+
+ // Whether we have a pending encoding autodetection request from the
+ // menu for all encodings.
+ bool mForcedAutodetection : 1;
+
+ /*
+ * Set to true if we're checking session history (in the parent process) for
+ * a possible history load. Used only with iframes.
+ */
+ bool mCheckingSessionHistory : 1;
+
+ // Whether mBrowsingContext->SetActiveSessionHistoryEntry() needs to be called
+ // when the loading entry becomes the active entry. This is used for the
+ // initial about:blank-replacing about:blank in order to make the history
+ // length WPTs pass.
+ bool mNeedToReportActiveAfterLoadingBecomesActive : 1;
+};
+
+inline nsISupports* ToSupports(nsDocShell* aDocShell) {
+ return static_cast<nsIDocumentLoader*>(aDocShell);
+}
+
+#endif /* nsDocShell_h__ */