Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 609 insertions, 0 deletions

diff --git a/docshell/base/nsDocShellLoadState.h b/docshell/base/nsDocShellLoadState.h
new file mode 100644
index 0000000000..a34ca1b54b
--- /dev/null
+++ b/docshell/base/nsDocShellLoadState.h
@@ -0,0 +1,609 @@
+/* -*- 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 nsDocShellLoadState_h__
+#define nsDocShellLoadState_h__
+
+#include "mozilla/dom/BrowsingContext.h"
+#include "mozilla/dom/SessionHistoryEntry.h"
+
+// Helper Classes
+#include "mozilla/Maybe.h"
+#include "nsCOMPtr.h"
+#include "nsString.h"
+#include "nsDocShellLoadTypes.h"
+#include "nsTArrayForwardDeclare.h"
+
+class nsIContentSecurityPolicy;
+class nsIInputStream;
+class nsISHEntry;
+class nsIURI;
+class nsIDocShell;
+class nsIChannel;
+class nsIReferrerInfo;
+namespace mozilla {
+class OriginAttributes;
+template <typename, class>
+class UniquePtr;
+namespace dom {
+class DocShellLoadStateInit;
+}  // namespace dom
+}  // namespace mozilla
+
+/**
+ * nsDocShellLoadState contains setup information used in a nsIDocShell::loadURI
+ * call.
+ */
+class nsDocShellLoadState final {
+  using BrowsingContext = mozilla::dom::BrowsingContext;
+  template <typename T>
+  using MaybeDiscarded = mozilla::dom::MaybeDiscarded<T>;
+
+ public:
+  NS_INLINE_DECL_REFCOUNTING(nsDocShellLoadState);
+
+  explicit nsDocShellLoadState(nsIURI* aURI);
+  explicit nsDocShellLoadState(
+      const mozilla::dom::DocShellLoadStateInit& aLoadState,
+      mozilla::ipc::IProtocol* aActor, bool* aReadSuccess);
+  explicit nsDocShellLoadState(const nsDocShellLoadState& aOther);
+  nsDocShellLoadState(nsIURI* aURI, uint64_t aLoadIdentifier);
+
+  static nsresult CreateFromPendingChannel(nsIChannel* aPendingChannel,
+                                           uint64_t aLoadIdentifier,
+                                           uint64_t aRegistarId,
+                                           nsDocShellLoadState** aResult);
+
+  static nsresult CreateFromLoadURIOptions(
+      BrowsingContext* aBrowsingContext, const nsAString& aURI,
+      const mozilla::dom::LoadURIOptions& aLoadURIOptions,
+      nsDocShellLoadState** aResult);
+  static nsresult CreateFromLoadURIOptions(
+      BrowsingContext* aBrowsingContext, nsIURI* aURI,
+      const mozilla::dom::LoadURIOptions& aLoadURIOptions,
+      nsDocShellLoadState** aResult);
+
+  // Getters and Setters
+
+  nsIReferrerInfo* GetReferrerInfo() const;
+
+  void SetReferrerInfo(nsIReferrerInfo* aReferrerInfo);
+
+  nsIURI* URI() const;
+
+  void SetURI(nsIURI* aURI);
+
+  nsIURI* OriginalURI() const;
+
+  void SetOriginalURI(nsIURI* aOriginalURI);
+
+  nsIURI* ResultPrincipalURI() const;
+
+  void SetResultPrincipalURI(nsIURI* aResultPrincipalURI);
+
+  bool ResultPrincipalURIIsSome() const;
+
+  void SetResultPrincipalURIIsSome(bool aIsSome);
+
+  bool KeepResultPrincipalURIIfSet() const;
+
+  void SetKeepResultPrincipalURIIfSet(bool aKeep);
+
+  nsIPrincipal* PrincipalToInherit() const;
+
+  void SetPrincipalToInherit(nsIPrincipal* aPrincipalToInherit);
+
+  nsIPrincipal* PartitionedPrincipalToInherit() const;
+
+  void SetPartitionedPrincipalToInherit(
+      nsIPrincipal* aPartitionedPrincipalToInherit);
+
+  bool LoadReplace() const;
+
+  void SetLoadReplace(bool aLoadReplace);
+
+  nsIPrincipal* TriggeringPrincipal() const;
+
+  void SetTriggeringPrincipal(nsIPrincipal* aTriggeringPrincipal);
+
+  uint32_t TriggeringSandboxFlags() const;
+
+  void SetTriggeringSandboxFlags(uint32_t aTriggeringSandboxFlags);
+
+  uint64_t TriggeringWindowId() const;
+
+  void SetTriggeringWindowId(uint64_t aTriggeringWindowId);
+
+  bool TriggeringStorageAccess() const;
+
+  void SetTriggeringStorageAccess(bool aTriggeringStorageAccess);
+
+  nsIContentSecurityPolicy* Csp() const;
+
+  void SetCsp(nsIContentSecurityPolicy* aCsp);
+
+  bool InheritPrincipal() const;
+
+  void SetInheritPrincipal(bool aInheritPrincipal);
+
+  bool PrincipalIsExplicit() const;
+
+  void SetPrincipalIsExplicit(bool aPrincipalIsExplicit);
+
+  // If true, "beforeunload" event listeners were notified by the creater of the
+  // LoadState and given the chance to abort the navigation, and should not be
+  // notified again.
+  bool NotifiedBeforeUnloadListeners() const;
+
+  void SetNotifiedBeforeUnloadListeners(bool aNotifiedBeforeUnloadListeners);
+
+  bool ForceAllowDataURI() const;
+
+  void SetForceAllowDataURI(bool aForceAllowDataURI);
+
+  bool IsExemptFromHTTPSFirstMode() const;
+
+  void SetIsExemptFromHTTPSFirstMode(bool aIsExemptFromHTTPSFirstMode);
+
+  bool OriginalFrameSrc() const;
+
+  void SetOriginalFrameSrc(bool aOriginalFrameSrc);
+
+  bool IsFormSubmission() const;
+
+  void SetIsFormSubmission(bool aIsFormSubmission);
+
+  uint32_t LoadType() const;
+
+  void SetLoadType(uint32_t aLoadType);
+
+  nsISHEntry* SHEntry() const;
+
+  void SetSHEntry(nsISHEntry* aSHEntry);
+
+  const mozilla::dom::LoadingSessionHistoryInfo* GetLoadingSessionHistoryInfo()
+      const;
+
+  // Copies aLoadingInfo and stores the copy in this nsDocShellLoadState.
+  void SetLoadingSessionHistoryInfo(
+      const mozilla::dom::LoadingSessionHistoryInfo& aLoadingInfo);
+
+  // Stores aLoadingInfo in this nsDocShellLoadState.
+  void SetLoadingSessionHistoryInfo(
+      mozilla::UniquePtr<mozilla::dom::LoadingSessionHistoryInfo> aLoadingInfo);
+
+  bool LoadIsFromSessionHistory() const;
+
+  const nsString& Target() const;
+
+  void SetTarget(const nsAString& aTarget);
+
+  nsIInputStream* PostDataStream() const;
+
+  void SetPostDataStream(nsIInputStream* aStream);
+
+  nsIInputStream* HeadersStream() const;
+
+  void SetHeadersStream(nsIInputStream* aHeadersStream);
+
+  bool IsSrcdocLoad() const;
+
+  const nsString& SrcdocData() const;
+
+  void SetSrcdocData(const nsAString& aSrcdocData);
+
+  const MaybeDiscarded<BrowsingContext>& SourceBrowsingContext() const {
+    return mSourceBrowsingContext;
+  }
+
+  void SetSourceBrowsingContext(BrowsingContext*);
+
+  void SetAllowFocusMove(bool aAllow) { mAllowFocusMove = aAllow; }
+
+  bool AllowFocusMove() const { return mAllowFocusMove; }
+
+  const MaybeDiscarded<BrowsingContext>& TargetBrowsingContext() const {
+    return mTargetBrowsingContext;
+  }
+
+  void SetTargetBrowsingContext(BrowsingContext* aTargetBrowsingContext);
+
+  nsIURI* BaseURI() const;
+
+  void SetBaseURI(nsIURI* aBaseURI);
+
+  // Helper function allowing convenient work with mozilla::Maybe in C++, hiding
+  // resultPrincipalURI and resultPrincipalURIIsSome attributes from the
+  // consumer.
+  void GetMaybeResultPrincipalURI(
+      mozilla::Maybe<nsCOMPtr<nsIURI>>& aRPURI) const;
+
+  void SetMaybeResultPrincipalURI(
+      mozilla::Maybe<nsCOMPtr<nsIURI>> const& aRPURI);
+
+  uint32_t LoadFlags() const;
+
+  void SetLoadFlags(uint32_t aFlags);
+
+  void SetLoadFlag(uint32_t aFlag);
+
+  void UnsetLoadFlag(uint32_t aFlag);
+
+  bool HasLoadFlags(uint32_t aFlag);
+
+  uint32_t InternalLoadFlags() const;
+
+  void SetInternalLoadFlags(uint32_t aFlags);
+
+  void SetInternalLoadFlag(uint32_t aFlag);
+
+  void UnsetInternalLoadFlag(uint32_t aFlag);
+
+  bool HasInternalLoadFlags(uint32_t aFlag);
+
+  bool FirstParty() const;
+
+  void SetFirstParty(bool aFirstParty);
+
+  bool HasValidUserGestureActivation() const;
+
+  void SetHasValidUserGestureActivation(bool HasValidUserGestureActivation);
+
+  const nsCString& TypeHint() const;
+
+  void SetTypeHint(const nsCString& aTypeHint);
+
+  const nsString& FileName() const;
+
+  void SetFileName(const nsAString& aFileName);
+
+  nsIURI* GetUnstrippedURI() const;
+
+  void SetUnstrippedURI(nsIURI* aUnstrippedURI);
+
+  // Give the type of DocShell we're loading into (chrome/content/etc) and
+  // origin attributes for the URI we're loading, figure out if we should
+  // inherit our principal from the document the load was requested from, or
+  // else if the principal should be set up later in the process (after loads).
+  // See comments in function for more info on principal selection algorithm
+  nsresult SetupInheritingPrincipal(
+      mozilla::dom::BrowsingContext::Type aType,
+      const mozilla::OriginAttributes& aOriginAttributes);
+
+  // If no triggering principal exists at the moment, create one using referrer
+  // information and origin attributes.
+  nsresult SetupTriggeringPrincipal(
+      const mozilla::OriginAttributes& aOriginAttributes);
+
+  void SetIsFromProcessingFrameAttributes() {
+    mIsFromProcessingFrameAttributes = true;
+  }
+  bool GetIsFromProcessingFrameAttributes() const {
+    return mIsFromProcessingFrameAttributes;
+  }
+
+  nsIChannel* GetPendingRedirectedChannel() {
+    return mPendingRedirectedChannel;
+  }
+
+  uint64_t GetPendingRedirectChannelRegistrarId() const {
+    return mChannelRegistrarId;
+  }
+
+  void SetOriginalURIString(const nsCString& aOriginalURI) {
+    mOriginalURIString.emplace(aOriginalURI);
+  }
+  const mozilla::Maybe<nsCString>& GetOriginalURIString() const {
+    return mOriginalURIString;
+  }
+
+  void SetCancelContentJSEpoch(int32_t aCancelEpoch) {
+    mCancelContentJSEpoch.emplace(aCancelEpoch);
+  }
+  const mozilla::Maybe<int32_t>& GetCancelContentJSEpoch() const {
+    return mCancelContentJSEpoch;
+  }
+
+  uint64_t GetLoadIdentifier() const { return mLoadIdentifier; }
+
+  void SetChannelInitialized(bool aInitilized) {
+    mChannelInitialized = aInitilized;
+  }
+
+  bool GetChannelInitialized() const { return mChannelInitialized; }
+
+  void SetIsMetaRefresh(bool aMetaRefresh) { mIsMetaRefresh = aMetaRefresh; }
+
+  bool IsMetaRefresh() const { return mIsMetaRefresh; }
+
+  const mozilla::Maybe<nsCString>& GetRemoteTypeOverride() const {
+    return mRemoteTypeOverride;
+  }
+
+  void SetRemoteTypeOverride(const nsCString& aRemoteTypeOverride) {
+    mRemoteTypeOverride = mozilla::Some(aRemoteTypeOverride);
+  }
+
+  void SetWasSchemelessInput(bool aWasSchemelessInput) {
+    mWasSchemelessInput = aWasSchemelessInput;
+  }
+
+  bool GetWasSchemelessInput() { return mWasSchemelessInput; }
+
+  // Determine the remote type of the process which should be considered
+  // responsible for this load for the purposes of security checks.
+  //
+  // This will generally be the process which created the nsDocShellLoadState
+  // originally, however non-errorpage history loads are always considered to be
+  // triggered by the parent process, as we can validate them against the
+  // history entry.
+  const nsCString& GetEffectiveTriggeringRemoteType() const;
+
+  void SetTriggeringRemoteType(const nsACString& aTriggeringRemoteType);
+
+  // Diagnostic assert if this is a system-principal triggered load, and it is
+  // trivial to determine that the effective triggering remote type would not be
+  // allowed to perform this load.
+  //
+  // This is called early during the load to crash as close to the cause as
+  // possible. See bug 1838686 for details.
+#ifdef MOZ_DIAGNOSTIC_ASSERT_ENABLED
+  void AssertProcessCouldTriggerLoadIfSystem();
+#else
+  void AssertProcessCouldTriggerLoadIfSystem() {}
+#endif
+
+  // When loading a document through nsDocShell::LoadURI(), a special set of
+  // flags needs to be set based on other values in nsDocShellLoadState. This
+  // function calculates those flags, before the LoadState is passed to
+  // nsDocShell::InternalLoad.
+  void CalculateLoadURIFlags();
+
+  // Compute the load flags to be used by creating channel.  aUriModified and
+  // aIsEmbeddingBlockedError are expected to be Nothing when called from parent
+  // process.
+  nsLoadFlags CalculateChannelLoadFlags(
+      mozilla::dom::BrowsingContext* aBrowsingContext,
+      mozilla::Maybe<bool> aUriModified,
+      mozilla::Maybe<bool> aIsEmbeddingBlockedError);
+
+  mozilla::dom::DocShellLoadStateInit Serialize(
+      mozilla::ipc::IProtocol* aActor);
+
+  void SetLoadIsFromSessionHistory(int32_t aOffset, bool aLoadingCurrentEntry);
+  void ClearLoadIsFromSessionHistory();
+
+  void MaybeStripTrackerQueryStrings(mozilla::dom::BrowsingContext* aContext);
+
+ protected:
+  // Destructor can't be defaulted or inlined, as header doesn't have all type
+  // includes it needs to do so.
+  ~nsDocShellLoadState();
+
+  // Given the original `nsDocShellLoadState` which was sent to a content
+  // process, validate that they corespond to the same load.
+  // Returns a static (telemetry-safe) string naming what did not match, or
+  // nullptr if it succeeds.
+  const char* ValidateWithOriginalState(nsDocShellLoadState* aOriginalState);
+
+  static nsresult CreateFromLoadURIOptions(
+      BrowsingContext* aBrowsingContext, nsIURI* aURI,
+      const mozilla::dom::LoadURIOptions& aLoadURIOptions,
+      uint32_t aLoadFlagsOverride, nsIInputStream* aPostDataOverride,
+      nsDocShellLoadState** aResult);
+
+  // This is the referrer for the load.
+  nsCOMPtr<nsIReferrerInfo> mReferrerInfo;
+
+  // The URI we are navigating to. Will not be null once set.
+  nsCOMPtr<nsIURI> mURI;
+
+  // The URI to set as the originalURI on the channel that does the load. If
+  // null, aURI will be set as the originalURI.
+  nsCOMPtr<nsIURI> mOriginalURI;
+
+  // The URI to be set to loadInfo.resultPrincipalURI
+  // - When Nothing, there will be no change
+  // - When Some, the principal URI will overwrite even
+  //   with a null value.
+  //
+  // Valid only if mResultPrincipalURIIsSome is true (has the same meaning as
+  // isSome() on mozilla::Maybe.)
+  nsCOMPtr<nsIURI> mResultPrincipalURI;
+  bool mResultPrincipalURIIsSome;
+
+  // The principal of the load, that is, the entity responsible for causing the
+  // load to occur. In most cases the referrer and the triggeringPrincipal's URI
+  // will be identical.
+  //
+  // Please note that this is the principal that is used for security checks. If
+  // the argument aURI is provided by the web, then please do not pass a
+  // SystemPrincipal as the triggeringPrincipal.
+  nsCOMPtr<nsIPrincipal> mTriggeringPrincipal;
+
+  // The SandboxFlags of the load, that are, the SandboxFlags of the entity
+  // responsible for causing the load to occur. Most likely this are the
+  // SandboxFlags of the document that started the load.
+  uint32_t mTriggeringSandboxFlags;
+
+  // The window ID and current "has storage access" value of the entity
+  // triggering the load. This allows the identification of self-initiated
+  // same-origin navigations that should propogate unpartitioned storage access.
+  uint64_t mTriggeringWindowId;
+  bool mTriggeringStorageAccess;
+
+  // The CSP of 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 the entity starting the load did not use a CSP, then mCsp
+  // can be null. Please note that this is also the CSP that will be applied to
+  // the load in case the load encounters a server side redirect.
+  nsCOMPtr<nsIContentSecurityPolicy> mCsp;
+
+  // If a refresh is caused by http-equiv="refresh" we want to set
+  // aResultPrincipalURI, but we do not want to overwrite the channel's
+  // ResultPrincipalURI, if it has already been set on the channel by a protocol
+  // handler.
+  bool mKeepResultPrincipalURIIfSet;
+
+  // If set LOAD_REPLACE flag will be set on the channel. If aOriginalURI is
+  // null, this argument is ignored.
+  bool mLoadReplace;
+
+  // If this attribute is true and no triggeringPrincipal is specified,
+  // copy the principal from the referring document.
+  bool mInheritPrincipal;
+
+  // If this attribute is true only ever use the principal specified
+  // by the triggeringPrincipal and inheritPrincipal attributes.
+  // If there are security reasons for why this is unsafe, such
+  // as trying to use a systemprincipal as the triggeringPrincipal
+  // for a content docshell the load fails.
+  bool mPrincipalIsExplicit;
+
+  bool mNotifiedBeforeUnloadListeners;
+
+  // Principal we're inheriting. If null, this means the principal should be
+  // inherited from the current document. If set to NullPrincipal, the channel
+  // will fill in principal information later in the load. See internal comments
+  // of SetupInheritingPrincipal for more info.
+  //
+  // When passed to InternalLoad, If this argument is null then
+  // principalToInherit is computed differently. See nsDocShell::InternalLoad
+  // for more comments.
+
+  nsCOMPtr<nsIPrincipal> mPrincipalToInherit;
+
+  nsCOMPtr<nsIPrincipal> mPartitionedPrincipalToInherit;
+
+  // If this attribute is true, then a top-level navigation
+  // to a data URI will be allowed.
+  bool mForceAllowDataURI;
+
+  // If this attribute is true, then the top-level navigaion
+  // will be exempt from HTTPS-Only-Mode upgrades.
+  bool mIsExemptFromHTTPSFirstMode;
+
+  // If this attribute is true, this load corresponds to a frame
+  // element loading its original src (or srcdoc) attribute.
+  bool mOriginalFrameSrc;
+
+  // If this attribute is true, then the load was initiated by a
+  // form submission.
+  bool mIsFormSubmission;
+
+  // Contains a load type as specified by the nsDocShellLoadTypes::load*
+  // constants
+  uint32_t mLoadType;
+
+  // Active Session History entry (if loading from SH)
+  nsCOMPtr<nsISHEntry> mSHEntry;
+
+  // Loading session history info for the load
+  mozilla::UniquePtr<mozilla::dom::LoadingSessionHistoryInfo>
+      mLoadingSessionHistoryInfo;
+
+  // Target for load, like _content, _blank etc.
+  nsString mTarget;
+
+  // When set, this is the Target Browsing Context for the navigation
+  // after retargeting.
+  MaybeDiscarded<BrowsingContext> mTargetBrowsingContext;
+
+  // Post data stream (if POSTing)
+  nsCOMPtr<nsIInputStream> mPostDataStream;
+
+  // Additional Headers
+  nsCOMPtr<nsIInputStream> mHeadersStream;
+
+  // When set, the load will be interpreted as a srcdoc load, where contents of
+  // this string will be loaded instead of the URI. Setting srcdocData sets
+  // isSrcdocLoad to true
+  nsString mSrcdocData;
+
+  // When set, this is the Source Browsing Context for the navigation.
+  MaybeDiscarded<BrowsingContext> mSourceBrowsingContext;
+
+  // Used for srcdoc loads to give view-source knowledge of the load's base URI
+  // as this information isn't embedded in the load's URI.
+  nsCOMPtr<nsIURI> mBaseURI;
+
+  // Set of Load Flags, taken from nsDocShellLoadTypes.h and nsIWebNavigation
+  uint32_t mLoadFlags;
+
+  // Set of internal load flags
+  uint32_t mInternalLoadFlags;
+
+  // Is this a First Party Load?
+  bool mFirstParty;
+
+  // Is this load triggered by a user gesture?
+  bool mHasValidUserGestureActivation;
+
+  // Whether this load can steal the focus from the source browsing context.
+  bool mAllowFocusMove;
+
+  // A hint as to the content-type of the resulting data. If no hint, IsVoid()
+  // should return true.
+  nsCString mTypeHint;
+
+  // Non-void when the link should be downloaded as the given filename.
+  // mFileName being non-void but empty means that no filename hint was
+  // specified, but link should still trigger a download. If not a download,
+  // mFileName.IsVoid() should return true.
+  nsString mFileName;
+
+  // This will be true if this load is triggered by attribute changes.
+  // See nsILoadInfo.isFromProcessingFrameAttributes
+  bool mIsFromProcessingFrameAttributes;
+
+  // If set, a pending cross-process redirected channel should be used to
+  // perform the load. The channel will be stored in this value.
+  nsCOMPtr<nsIChannel> mPendingRedirectedChannel;
+
+  // An optional string representation of mURI, before any
+  // fixups were applied, so that we can send it to a search
+  // engine service if needed.
+  mozilla::Maybe<nsCString> mOriginalURIString;
+
+  // An optional value to pass to nsIDocShell::setCancelJSEpoch
+  // when initiating the load.
+  mozilla::Maybe<int32_t> mCancelContentJSEpoch;
+
+  // If mPendingRedirectChannel is set, then this is the identifier
+  // that the parent-process equivalent channel has been registered
+  // with using RedirectChannelRegistrar.
+  uint64_t mChannelRegistrarId;
+
+  // An identifier to make it possible to examine if two loads are
+  // equal, and which browsing context they belong to (see
+  // BrowsingContext::{Get, Set}CurrentLoadIdentifier)
+  const uint64_t mLoadIdentifier;
+
+  // Optional value to indicate that a channel has been
+  // pre-initialized in the parent process.
+  bool mChannelInitialized;
+
+  // True if the load was triggered by a meta refresh.
+  bool mIsMetaRefresh;
+
+  // True if the nsDocShellLoadState was received over IPC.
+  bool mWasCreatedRemotely = false;
+
+  // The original URI before query stripping happened. If it's present, it shows
+  // the query stripping happened. Otherwise, it will be a nullptr.
+  nsCOMPtr<nsIURI> mUnstrippedURI;
+
+  // If set, the remote type which the load should be completed within.
+  mozilla::Maybe<nsCString> mRemoteTypeOverride;
+
+  // Remote type of the process which originally requested the load.
+  nsCString mTriggeringRemoteType;
+
+  // if the to-be-loaded address had it protocol added through a fixup
+  bool mWasSchemelessInput = false;
+};
+
+#endif /* nsDocShellLoadState_h__ */