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Diffstat (limited to 'docshell/shistory/nsSHEntry.cpp')
| -rw-r--r-- | docshell/shistory/nsSHEntry.cpp | 1131 |
1 files changed, 1131 insertions, 0 deletions
diff --git a/docshell/shistory/nsSHEntry.cpp b/docshell/shistory/nsSHEntry.cpp new file mode 100644 index 0000000000..8fc4f74844 --- /dev/null +++ b/docshell/shistory/nsSHEntry.cpp @@ -0,0 +1,1131 @@ +/* -*- 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 "nsSHEntry.h" + +#include <algorithm> + +#include "nsDocShell.h" +#include "nsDocShellEditorData.h" +#include "nsDocShellLoadState.h" +#include "nsDocShellLoadTypes.h" +#include "nsIContentSecurityPolicy.h" +#include "nsIDocShellTreeItem.h" +#include "nsIDocumentViewer.h" +#include "nsIInputStream.h" +#include "nsILayoutHistoryState.h" +#include "nsIMutableArray.h" +#include "nsIStructuredCloneContainer.h" +#include "nsIURI.h" +#include "nsSHEntryShared.h" +#include "nsSHistory.h" + +#include "mozilla/Logging.h" +#include "nsIReferrerInfo.h" + +extern mozilla::LazyLogModule gPageCacheLog; + +static uint32_t gEntryID = 0; + +nsSHEntry::nsSHEntry() + : mShared(new nsSHEntryShared()), + mLoadType(0), + mID(++gEntryID), // SessionStore has special handling for 0 values. + mScrollPositionX(0), + mScrollPositionY(0), + mLoadReplace(false), + mURIWasModified(false), + mIsSrcdocEntry(false), + mScrollRestorationIsManual(false), + mLoadedInThisProcess(false), + mPersist(true), + mHasUserInteraction(false), + mHasUserActivation(false) {} + +nsSHEntry::nsSHEntry(const nsSHEntry& aOther) + : mShared(aOther.mShared), + mURI(aOther.mURI), + mOriginalURI(aOther.mOriginalURI), + mResultPrincipalURI(aOther.mResultPrincipalURI), + mUnstrippedURI(aOther.mUnstrippedURI), + mReferrerInfo(aOther.mReferrerInfo), + mTitle(aOther.mTitle), + mPostData(aOther.mPostData), + mLoadType(0), // XXX why not copy? + mID(aOther.mID), + mScrollPositionX(0), // XXX why not copy? + mScrollPositionY(0), // XXX why not copy? + mParent(aOther.mParent), + mStateData(aOther.mStateData), + mSrcdocData(aOther.mSrcdocData), + mBaseURI(aOther.mBaseURI), + mLoadReplace(aOther.mLoadReplace), + mURIWasModified(aOther.mURIWasModified), + mIsSrcdocEntry(aOther.mIsSrcdocEntry), + mScrollRestorationIsManual(false), + mLoadedInThisProcess(aOther.mLoadedInThisProcess), + mPersist(aOther.mPersist), + mHasUserInteraction(false), + mHasUserActivation(aOther.mHasUserActivation) {} + +nsSHEntry::~nsSHEntry() { + // Null out the mParent pointers on all our kids. + for (nsISHEntry* entry : mChildren) { + if (entry) { + entry->SetParent(nullptr); + } + } +} + +NS_IMPL_ISUPPORTS(nsSHEntry, nsISHEntry, nsISupportsWeakReference) + +NS_IMETHODIMP +nsSHEntry::SetScrollPosition(int32_t aX, int32_t aY) { + mScrollPositionX = aX; + mScrollPositionY = aY; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetScrollPosition(int32_t* aX, int32_t* aY) { + *aX = mScrollPositionX; + *aY = mScrollPositionY; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetURIWasModified(bool* aOut) { + *aOut = mURIWasModified; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetURIWasModified(bool aIn) { + mURIWasModified = aIn; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetURI(nsIURI** aURI) { + *aURI = mURI; + NS_IF_ADDREF(*aURI); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetURI(nsIURI* aURI) { + mURI = aURI; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetOriginalURI(nsIURI** aOriginalURI) { + *aOriginalURI = mOriginalURI; + NS_IF_ADDREF(*aOriginalURI); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetOriginalURI(nsIURI* aOriginalURI) { + mOriginalURI = aOriginalURI; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetResultPrincipalURI(nsIURI** aResultPrincipalURI) { + *aResultPrincipalURI = mResultPrincipalURI; + NS_IF_ADDREF(*aResultPrincipalURI); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetResultPrincipalURI(nsIURI* aResultPrincipalURI) { + mResultPrincipalURI = aResultPrincipalURI; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetUnstrippedURI(nsIURI** aUnstrippedURI) { + *aUnstrippedURI = mUnstrippedURI; + NS_IF_ADDREF(*aUnstrippedURI); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetUnstrippedURI(nsIURI* aUnstrippedURI) { + mUnstrippedURI = aUnstrippedURI; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetLoadReplace(bool* aLoadReplace) { + *aLoadReplace = mLoadReplace; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetLoadReplace(bool aLoadReplace) { + mLoadReplace = aLoadReplace; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetReferrerInfo(nsIReferrerInfo** aReferrerInfo) { + *aReferrerInfo = mReferrerInfo; + NS_IF_ADDREF(*aReferrerInfo); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetReferrerInfo(nsIReferrerInfo* aReferrerInfo) { + mReferrerInfo = aReferrerInfo; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetSticky(bool aSticky) { + mShared->mSticky = aSticky; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetSticky(bool* aSticky) { + *aSticky = mShared->mSticky; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetTitle(nsAString& aTitle) { + // Check for empty title... + if (mTitle.IsEmpty() && mURI) { + // Default title is the URL. + nsAutoCString spec; + if (NS_SUCCEEDED(mURI->GetSpec(spec))) { + AppendUTF8toUTF16(spec, mTitle); + } + } + + aTitle = mTitle; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetTitle(const nsAString& aTitle) { + mTitle = aTitle; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetName(nsAString& aName) { + aName = mName; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetName(const nsAString& aName) { + mName = aName; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetPostData(nsIInputStream** aResult) { + *aResult = mPostData; + NS_IF_ADDREF(*aResult); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetPostData(nsIInputStream* aPostData) { + mPostData = aPostData; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetHasPostData(bool* aResult) { + *aResult = !!mPostData; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetLayoutHistoryState(nsILayoutHistoryState** aResult) { + *aResult = mShared->mLayoutHistoryState; + NS_IF_ADDREF(*aResult); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetLayoutHistoryState(nsILayoutHistoryState* aState) { + mShared->mLayoutHistoryState = aState; + if (mShared->mLayoutHistoryState) { + mShared->mLayoutHistoryState->SetScrollPositionOnly( + !mShared->mSaveLayoutState); + } + + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::InitLayoutHistoryState(nsILayoutHistoryState** aState) { + if (!mShared->mLayoutHistoryState) { + nsCOMPtr<nsILayoutHistoryState> historyState; + historyState = NS_NewLayoutHistoryState(); + SetLayoutHistoryState(historyState); + } + + nsCOMPtr<nsILayoutHistoryState> state = GetLayoutHistoryState(); + state.forget(aState); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetLoadType(uint32_t* aResult) { + *aResult = mLoadType; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetLoadType(uint32_t aLoadType) { + mLoadType = aLoadType; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetID(uint32_t* aResult) { + *aResult = mID; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetID(uint32_t aID) { + mID = aID; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetIsSubFrame(bool* aFlag) { + *aFlag = mShared->mIsFrameNavigation; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetIsSubFrame(bool aFlag) { + mShared->mIsFrameNavigation = aFlag; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetHasUserInteraction(bool* aFlag) { + // The back button and menulist deal with root/top-level + // session history entries, thus we annotate only the root entry. + if (!mParent) { + *aFlag = mHasUserInteraction; + } else { + nsCOMPtr<nsISHEntry> root = nsSHistory::GetRootSHEntry(this); + root->GetHasUserInteraction(aFlag); + } + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetHasUserInteraction(bool aFlag) { + // The back button and menulist deal with root/top-level + // session history entries, thus we annotate only the root entry. + if (!mParent) { + mHasUserInteraction = aFlag; + } else { + nsCOMPtr<nsISHEntry> root = nsSHistory::GetRootSHEntry(this); + root->SetHasUserInteraction(aFlag); + } + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetHasUserActivation(bool* aFlag) { + *aFlag = mHasUserActivation; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetHasUserActivation(bool aFlag) { + mHasUserActivation = aFlag; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetCacheKey(uint32_t* aResult) { + *aResult = mShared->mCacheKey; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetCacheKey(uint32_t aCacheKey) { + mShared->mCacheKey = aCacheKey; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetContentType(nsACString& aContentType) { + aContentType = mShared->mContentType; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetContentType(const nsACString& aContentType) { + mShared->mContentType = aContentType; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::Create( + nsIURI* aURI, const nsAString& aTitle, nsIInputStream* aInputStream, + uint32_t aCacheKey, const nsACString& aContentType, + nsIPrincipal* aTriggeringPrincipal, nsIPrincipal* aPrincipalToInherit, + nsIPrincipal* aPartitionedPrincipalToInherit, + nsIContentSecurityPolicy* aCsp, const nsID& aDocShellID, + bool aDynamicCreation, nsIURI* aOriginalURI, nsIURI* aResultPrincipalURI, + nsIURI* aUnstrippedURI, bool aLoadReplace, nsIReferrerInfo* aReferrerInfo, + const nsAString& aSrcdocData, bool aSrcdocEntry, nsIURI* aBaseURI, + bool aSaveLayoutState, bool aExpired, bool aUserActivation) { + MOZ_ASSERT( + aTriggeringPrincipal, + "need a valid triggeringPrincipal to create a session history entry"); + + mURI = aURI; + mTitle = aTitle; + mPostData = aInputStream; + + // Set the LoadType by default to loadHistory during creation + mLoadType = LOAD_HISTORY; + + mShared->mCacheKey = aCacheKey; + mShared->mContentType = aContentType; + mShared->mTriggeringPrincipal = aTriggeringPrincipal; + mShared->mPrincipalToInherit = aPrincipalToInherit; + mShared->mPartitionedPrincipalToInherit = aPartitionedPrincipalToInherit; + mShared->mCsp = aCsp; + mShared->mDocShellID = aDocShellID; + mShared->mDynamicallyCreated = aDynamicCreation; + + // By default all entries are set false for subframe flag. + // nsDocShell::CloneAndReplace() which creates entries for + // all subframe navigations, sets the flag to true. + mShared->mIsFrameNavigation = false; + + mHasUserInteraction = false; + + mShared->mExpired = aExpired; + + mIsSrcdocEntry = aSrcdocEntry; + mSrcdocData = aSrcdocData; + + mBaseURI = aBaseURI; + + mLoadedInThisProcess = true; + + mOriginalURI = aOriginalURI; + mResultPrincipalURI = aResultPrincipalURI; + mUnstrippedURI = aUnstrippedURI; + mLoadReplace = aLoadReplace; + mReferrerInfo = aReferrerInfo; + + mHasUserActivation = aUserActivation; + + mShared->mLayoutHistoryState = nullptr; + + mShared->mSaveLayoutState = aSaveLayoutState; + + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetParent(nsISHEntry** aResult) { + nsCOMPtr<nsISHEntry> parent = do_QueryReferent(mParent); + parent.forget(aResult); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetParent(nsISHEntry* aParent) { + mParent = do_GetWeakReference(aParent); + return NS_OK; +} + +NS_IMETHODIMP_(void) +nsSHEntry::SetViewerBounds(const nsIntRect& aBounds) { + mShared->mViewerBounds = aBounds; +} + +NS_IMETHODIMP_(void) +nsSHEntry::GetViewerBounds(nsIntRect& aBounds) { + aBounds = mShared->mViewerBounds; +} + +NS_IMETHODIMP +nsSHEntry::GetTriggeringPrincipal(nsIPrincipal** aTriggeringPrincipal) { + NS_IF_ADDREF(*aTriggeringPrincipal = mShared->mTriggeringPrincipal); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetTriggeringPrincipal(nsIPrincipal* aTriggeringPrincipal) { + mShared->mTriggeringPrincipal = aTriggeringPrincipal; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetPrincipalToInherit(nsIPrincipal** aPrincipalToInherit) { + NS_IF_ADDREF(*aPrincipalToInherit = mShared->mPrincipalToInherit); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetPrincipalToInherit(nsIPrincipal* aPrincipalToInherit) { + mShared->mPrincipalToInherit = aPrincipalToInherit; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetPartitionedPrincipalToInherit( + nsIPrincipal** aPartitionedPrincipalToInherit) { + NS_IF_ADDREF(*aPartitionedPrincipalToInherit = + mShared->mPartitionedPrincipalToInherit); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetPartitionedPrincipalToInherit( + nsIPrincipal* aPartitionedPrincipalToInherit) { + mShared->mPartitionedPrincipalToInherit = aPartitionedPrincipalToInherit; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetCsp(nsIContentSecurityPolicy** aCsp) { + NS_IF_ADDREF(*aCsp = mShared->mCsp); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetCsp(nsIContentSecurityPolicy* aCsp) { + mShared->mCsp = aCsp; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::AdoptBFCacheEntry(nsISHEntry* aEntry) { + nsSHEntryShared* shared = static_cast<nsSHEntry*>(aEntry)->mShared; + NS_ENSURE_STATE(shared); + + mShared = shared; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SharesDocumentWith(nsISHEntry* aEntry, bool* aOut) { + NS_ENSURE_ARG_POINTER(aOut); + + *aOut = mShared == static_cast<nsSHEntry*>(aEntry)->mShared; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetIsSrcdocEntry(bool* aIsSrcdocEntry) { + *aIsSrcdocEntry = mIsSrcdocEntry; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetSrcdocData(nsAString& aSrcdocData) { + aSrcdocData = mSrcdocData; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetSrcdocData(const nsAString& aSrcdocData) { + mSrcdocData = aSrcdocData; + mIsSrcdocEntry = true; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetBaseURI(nsIURI** aBaseURI) { + *aBaseURI = mBaseURI; + NS_IF_ADDREF(*aBaseURI); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetBaseURI(nsIURI* aBaseURI) { + mBaseURI = aBaseURI; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetScrollRestorationIsManual(bool* aIsManual) { + *aIsManual = mScrollRestorationIsManual; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetScrollRestorationIsManual(bool aIsManual) { + mScrollRestorationIsManual = aIsManual; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetLoadedInThisProcess(bool* aLoadedInThisProcess) { + *aLoadedInThisProcess = mLoadedInThisProcess; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetChildCount(int32_t* aCount) { + *aCount = mChildren.Count(); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::AddChild(nsISHEntry* aChild, int32_t aOffset, + bool aUseRemoteSubframes) { + if (aChild) { + NS_ENSURE_SUCCESS(aChild->SetParent(this), NS_ERROR_FAILURE); + } + + if (aOffset < 0) { + mChildren.AppendObject(aChild); + return NS_OK; + } + + // + // Bug 52670: Ensure children are added in order. + // + // Later frames in the child list may load faster and get appended + // before earlier frames, causing session history to be scrambled. + // By growing the list here, they are added to the right position. + // + // Assert that aOffset will not be so high as to grow us a lot. + // + NS_ASSERTION(aOffset < (mChildren.Count() + 1023), "Large frames array!\n"); + + bool newChildIsDyn = aChild ? aChild->IsDynamicallyAdded() : false; + + // If the new child is dynamically added, try to add it to aOffset, but if + // there are non-dynamically added children, the child must be after those. + if (newChildIsDyn) { + int32_t lastNonDyn = aOffset - 1; + for (int32_t i = aOffset; i < mChildren.Count(); ++i) { + nsISHEntry* entry = mChildren[i]; + if (entry) { + if (entry->IsDynamicallyAdded()) { + break; + } else { + lastNonDyn = i; + } + } + } + // InsertObjectAt allows only appending one object. + // If aOffset is larger than Count(), we must first manually + // set the capacity. + if (aOffset > mChildren.Count()) { + mChildren.SetCount(aOffset); + } + if (!mChildren.InsertObjectAt(aChild, lastNonDyn + 1)) { + NS_WARNING("Adding a child failed!"); + aChild->SetParent(nullptr); + return NS_ERROR_FAILURE; + } + } else { + // If the new child isn't dynamically added, it should be set to aOffset. + // If there are dynamically added children before that, those must be + // moved to be after aOffset. + if (mChildren.Count() > 0) { + int32_t start = std::min(mChildren.Count() - 1, aOffset); + int32_t dynEntryIndex = -1; + nsISHEntry* dynEntry = nullptr; + for (int32_t i = start; i >= 0; --i) { + nsISHEntry* entry = mChildren[i]; + if (entry) { + if (entry->IsDynamicallyAdded()) { + dynEntryIndex = i; + dynEntry = entry; + } else { + break; + } + } + } + + if (dynEntry) { + nsCOMArray<nsISHEntry> tmp; + tmp.SetCount(aOffset - dynEntryIndex + 1); + mChildren.InsertObjectsAt(tmp, dynEntryIndex); + NS_ASSERTION(mChildren[aOffset + 1] == dynEntry, "Whaat?"); + } + } + + // Make sure there isn't anything at aOffset. + if (aOffset < mChildren.Count()) { + nsISHEntry* oldChild = mChildren[aOffset]; + if (oldChild && oldChild != aChild) { + // Under Fission, this can happen when a network-created iframe starts + // out in-process, moves out-of-process, and then switches back. At that + // point, we'll create a new network-created DocShell at the same index + // where we already have an entry for the original network-created + // DocShell. + // + // This should ideally stop being an issue once the Fission-aware + // session history rewrite is complete. + NS_ASSERTION( + aUseRemoteSubframes, + "Adding a child where we already have a child? This may misbehave"); + oldChild->SetParent(nullptr); + } + } + + mChildren.ReplaceObjectAt(aChild, aOffset); + } + + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::RemoveChild(nsISHEntry* aChild) { + NS_ENSURE_TRUE(aChild, NS_ERROR_FAILURE); + bool childRemoved = false; + if (aChild->IsDynamicallyAdded()) { + childRemoved = mChildren.RemoveObject(aChild); + } else { + int32_t index = mChildren.IndexOfObject(aChild); + if (index >= 0) { + // Other alive non-dynamic child docshells still keep mChildOffset, + // so we don't want to change the indices here. + mChildren.ReplaceObjectAt(nullptr, index); + childRemoved = true; + } + } + if (childRemoved) { + aChild->SetParent(nullptr); + + // reduce the child count, i.e. remove empty children at the end + for (int32_t i = mChildren.Count() - 1; i >= 0 && !mChildren[i]; --i) { + if (!mChildren.RemoveObjectAt(i)) { + break; + } + } + } + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetChildAt(int32_t aIndex, nsISHEntry** aResult) { + if (aIndex >= 0 && aIndex < mChildren.Count()) { + *aResult = mChildren[aIndex]; + // yes, mChildren can have holes in it. AddChild's offset parameter makes + // that possible. + NS_IF_ADDREF(*aResult); + } else { + *aResult = nullptr; + } + return NS_OK; +} + +NS_IMETHODIMP_(void) +nsSHEntry::GetChildSHEntryIfHasNoDynamicallyAddedChild(int32_t aChildOffset, + nsISHEntry** aChild) { + *aChild = nullptr; + + bool dynamicallyAddedChild = false; + HasDynamicallyAddedChild(&dynamicallyAddedChild); + if (dynamicallyAddedChild) { + return; + } + + // If the user did a shift-reload on this frameset page, + // we don't want to load the subframes from history. + if (IsForceReloadType(mLoadType) || mLoadType == LOAD_REFRESH) { + return; + } + + /* Before looking for the subframe's url, check + * the expiration status of the parent. If the parent + * has expired from cache, then subframes will not be + * loaded from history in certain situations. + * If the user pressed reload and the parent frame has expired + * from cache, we do not want to load the child frame from history. + */ + if (mShared->mExpired && (mLoadType == LOAD_RELOAD_NORMAL)) { + // The parent has expired. Return null. + *aChild = nullptr; + return; + } + // Get the child subframe from session history. + GetChildAt(aChildOffset, aChild); + if (*aChild) { + // Set the parent's Load Type on the child + (*aChild)->SetLoadType(mLoadType); + } +} + +NS_IMETHODIMP +nsSHEntry::ReplaceChild(nsISHEntry* aNewEntry) { + NS_ENSURE_STATE(aNewEntry); + + nsID docshellID; + aNewEntry->GetDocshellID(docshellID); + + for (int32_t i = 0; i < mChildren.Count(); ++i) { + if (mChildren[i]) { + nsID childDocshellID; + nsresult rv = mChildren[i]->GetDocshellID(childDocshellID); + NS_ENSURE_SUCCESS(rv, rv); + if (docshellID == childDocshellID) { + mChildren[i]->SetParent(nullptr); + mChildren.ReplaceObjectAt(aNewEntry, i); + return aNewEntry->SetParent(this); + } + } + } + return NS_ERROR_FAILURE; +} + +NS_IMETHODIMP_(void) nsSHEntry::ClearEntry() { + int32_t childCount = GetChildCount(); + // Remove all children of this entry + for (int32_t i = childCount - 1; i >= 0; i--) { + nsCOMPtr<nsISHEntry> child; + GetChildAt(i, getter_AddRefs(child)); + RemoveChild(child); + } + AbandonBFCacheEntry(); +} + +NS_IMETHODIMP +nsSHEntry::GetStateData(nsIStructuredCloneContainer** aContainer) { + NS_IF_ADDREF(*aContainer = mStateData); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetStateData(nsIStructuredCloneContainer* aContainer) { + mStateData = aContainer; + return NS_OK; +} + +NS_IMETHODIMP_(bool) +nsSHEntry::IsDynamicallyAdded() { return mShared->mDynamicallyCreated; } + +NS_IMETHODIMP +nsSHEntry::HasDynamicallyAddedChild(bool* aAdded) { + *aAdded = false; + for (int32_t i = 0; i < mChildren.Count(); ++i) { + nsISHEntry* entry = mChildren[i]; + if (entry) { + *aAdded = entry->IsDynamicallyAdded(); + if (*aAdded) { + break; + } + } + } + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetDocshellID(nsID& aID) { + aID = mShared->mDocShellID; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetDocshellID(const nsID& aID) { + mShared->mDocShellID = aID; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetLastTouched(uint32_t* aLastTouched) { + *aLastTouched = mShared->mLastTouched; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetLastTouched(uint32_t aLastTouched) { + mShared->mLastTouched = aLastTouched; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetShistory(nsISHistory** aSHistory) { + nsCOMPtr<nsISHistory> shistory(do_QueryReferent(mShared->mSHistory)); + shistory.forget(aSHistory); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetShistory(nsISHistory* aSHistory) { + nsWeakPtr shistory = do_GetWeakReference(aSHistory); + // mSHistory can not be changed once it's set + MOZ_ASSERT(!mShared->mSHistory || (mShared->mSHistory == shistory)); + mShared->mSHistory = shistory; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetLoadTypeAsHistory() { + // Set the LoadType by default to loadHistory during creation + mLoadType = LOAD_HISTORY; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetPersist(bool* aPersist) { + *aPersist = mPersist; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetPersist(bool aPersist) { + mPersist = aPersist; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::CreateLoadInfo(nsDocShellLoadState** aLoadState) { + nsCOMPtr<nsIURI> uri = GetURI(); + RefPtr<nsDocShellLoadState> loadState(new nsDocShellLoadState(uri)); + + nsCOMPtr<nsIURI> originalURI = GetOriginalURI(); + loadState->SetOriginalURI(originalURI); + + mozilla::Maybe<nsCOMPtr<nsIURI>> emplacedResultPrincipalURI; + nsCOMPtr<nsIURI> resultPrincipalURI = GetResultPrincipalURI(); + emplacedResultPrincipalURI.emplace(std::move(resultPrincipalURI)); + loadState->SetMaybeResultPrincipalURI(emplacedResultPrincipalURI); + + nsCOMPtr<nsIURI> unstrippedURI = GetUnstrippedURI(); + loadState->SetUnstrippedURI(unstrippedURI); + + loadState->SetLoadReplace(GetLoadReplace()); + nsCOMPtr<nsIInputStream> postData = GetPostData(); + loadState->SetPostDataStream(postData); + + nsAutoCString contentType; + GetContentType(contentType); + loadState->SetTypeHint(contentType); + + nsCOMPtr<nsIPrincipal> triggeringPrincipal = GetTriggeringPrincipal(); + loadState->SetTriggeringPrincipal(triggeringPrincipal); + nsCOMPtr<nsIPrincipal> principalToInherit = GetPrincipalToInherit(); + loadState->SetPrincipalToInherit(principalToInherit); + nsCOMPtr<nsIPrincipal> partitionedPrincipalToInherit = + GetPartitionedPrincipalToInherit(); + loadState->SetPartitionedPrincipalToInherit(partitionedPrincipalToInherit); + nsCOMPtr<nsIContentSecurityPolicy> csp = GetCsp(); + loadState->SetCsp(csp); + nsCOMPtr<nsIReferrerInfo> referrerInfo = GetReferrerInfo(); + loadState->SetReferrerInfo(referrerInfo); + + // Do not inherit principal from document (security-critical!); + uint32_t flags = nsDocShell::InternalLoad::INTERNAL_LOAD_FLAGS_NONE; + + // Passing nullptr as aSourceDocShell gives the same behaviour as before + // aSourceDocShell was introduced. According to spec we should be passing + // the source browsing context that was used when the history entry was + // first created. bug 947716 has been created to address this issue. + nsAutoString srcdoc; + nsCOMPtr<nsIURI> baseURI; + if (GetIsSrcdocEntry()) { + GetSrcdocData(srcdoc); + baseURI = GetBaseURI(); + flags |= nsDocShell::InternalLoad::INTERNAL_LOAD_FLAGS_IS_SRCDOC; + } else { + srcdoc = VoidString(); + } + loadState->SetSrcdocData(srcdoc); + loadState->SetBaseURI(baseURI); + loadState->SetInternalLoadFlags(flags); + + loadState->SetFirstParty(true); + + loadState->SetHasValidUserGestureActivation(GetHasUserActivation()); + + loadState->SetSHEntry(this); + + // When we create a load state from the history entry we already know if + // https-first was able to upgrade the request from http to https. There is no + // point in re-retrying to upgrade. + loadState->SetIsExemptFromHTTPSFirstMode(true); + + loadState.forget(aLoadState); + return NS_OK; +} + +NS_IMETHODIMP_(void) +nsSHEntry::SyncTreesForSubframeNavigation( + nsISHEntry* aEntry, mozilla::dom::BrowsingContext* aTopBC, + mozilla::dom::BrowsingContext* aIgnoreBC) { + // XXX Keep this in sync with + // SessionHistoryEntry::SyncTreesForSubframeNavigation + // + // We need to sync up the browsing context and session history trees for + // subframe navigation. If the load was in a subframe, we forward up to + // the top browsing context, which will then recursively sync up all browsing + // contexts to their corresponding entries in the new session history tree. If + // we don't do this, then we can cache a content viewer on the wrong cloned + // entry, and subsequently restore it at the wrong time. + nsCOMPtr<nsISHEntry> newRootEntry = nsSHistory::GetRootSHEntry(aEntry); + if (newRootEntry) { + // newRootEntry is now the new root entry. + // Find the old root entry as well. + + // Need a strong ref. on |oldRootEntry| so it isn't destroyed when + // SetChildHistoryEntry() does SwapHistoryEntries() (bug 304639). + nsCOMPtr<nsISHEntry> oldRootEntry = nsSHistory::GetRootSHEntry(this); + + if (oldRootEntry) { + nsSHistory::SwapEntriesData data = {aIgnoreBC, newRootEntry, nullptr}; + nsSHistory::SetChildHistoryEntry(oldRootEntry, aTopBC, 0, &data); + } + } +} + +void nsSHEntry::EvictDocumentViewer() { + nsCOMPtr<nsIDocumentViewer> viewer = GetDocumentViewer(); + if (viewer) { + mShared->NotifyListenersDocumentViewerEvicted(); + // Drop the presentation state before destroying the viewer, so that + // document teardown is able to correctly persist the state. + SetDocumentViewer(nullptr); + SyncPresentationState(); + viewer->Destroy(); + } +} + +NS_IMETHODIMP +nsSHEntry::SetDocumentViewer(nsIDocumentViewer* aViewer) { + return GetState()->SetDocumentViewer(aViewer); +} + +NS_IMETHODIMP +nsSHEntry::GetDocumentViewer(nsIDocumentViewer** aResult) { + *aResult = GetState()->mDocumentViewer; + NS_IF_ADDREF(*aResult); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetIsInBFCache(bool* aResult) { + *aResult = !!GetState()->mDocumentViewer; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::Clone(nsISHEntry** aResult) { + nsCOMPtr<nsISHEntry> entry = new nsSHEntry(*this); + entry.forget(aResult); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetSaveLayoutStateFlag(bool* aFlag) { + *aFlag = mShared->mSaveLayoutState; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetSaveLayoutStateFlag(bool aFlag) { + mShared->mSaveLayoutState = aFlag; + if (mShared->mLayoutHistoryState) { + mShared->mLayoutHistoryState->SetScrollPositionOnly(!aFlag); + } + + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetWindowState(nsISupports* aState) { + GetState()->mWindowState = aState; + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetWindowState(nsISupports** aState) { + NS_IF_ADDREF(*aState = GetState()->mWindowState); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetRefreshURIList(nsIMutableArray** aList) { + NS_IF_ADDREF(*aList = GetState()->mRefreshURIList); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetRefreshURIList(nsIMutableArray* aList) { + GetState()->mRefreshURIList = aList; + return NS_OK; +} + +NS_IMETHODIMP_(void) +nsSHEntry::AddChildShell(nsIDocShellTreeItem* aShell) { + MOZ_ASSERT(aShell, "Null child shell added to history entry"); + GetState()->mChildShells.AppendObject(aShell); +} + +NS_IMETHODIMP +nsSHEntry::ChildShellAt(int32_t aIndex, nsIDocShellTreeItem** aShell) { + NS_IF_ADDREF(*aShell = GetState()->mChildShells.SafeObjectAt(aIndex)); + return NS_OK; +} + +NS_IMETHODIMP_(void) +nsSHEntry::ClearChildShells() { GetState()->mChildShells.Clear(); } + +NS_IMETHODIMP_(void) +nsSHEntry::SyncPresentationState() { GetState()->SyncPresentationState(); } + +nsDocShellEditorData* nsSHEntry::ForgetEditorData() { + // XXX jlebar Check how this is used. + return GetState()->mEditorData.release(); +} + +void nsSHEntry::SetEditorData(nsDocShellEditorData* aData) { + NS_ASSERTION(!(aData && GetState()->mEditorData), + "We're going to overwrite an owning ref!"); + if (GetState()->mEditorData != aData) { + GetState()->mEditorData = mozilla::WrapUnique(aData); + } +} + +bool nsSHEntry::HasDetachedEditor() { + return GetState()->mEditorData != nullptr; +} + +bool nsSHEntry::HasBFCacheEntry( + mozilla::dom::SHEntrySharedParentState* aEntry) { + return GetState() == aEntry; +} + +NS_IMETHODIMP +nsSHEntry::AbandonBFCacheEntry() { + mShared = GetState()->Duplicate(); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetBfcacheID(uint64_t* aBFCacheID) { + *aBFCacheID = mShared->GetId(); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::GetWireframe(JSContext* aCx, JS::MutableHandle<JS::Value> aOut) { + aOut.set(JS::NullValue()); + return NS_OK; +} + +NS_IMETHODIMP +nsSHEntry::SetWireframe(JSContext* aCx, JS::Handle<JS::Value> aArg) { + return NS_ERROR_NOT_IMPLEMENTED; +} |