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https://github.com/roytam1/UXP.git
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Moonchild
824d0cad58
In order to tailor certain security checks to the caller that is attempting to load a particular piece of content, we need to be able to attach an appropriate triggering principal to the corresponding requests. Since most HTML content is loaded based on attribute values, this means capturing the subject principal of the caller who sets those attributes, which in turn means we need to make it available to `AfterSetAttr` hooks on all relevant element types.
297 lines
9.1 KiB
C++
297 lines
9.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_HTMLObjectElement_h
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#define mozilla_dom_HTMLObjectElement_h
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#include "mozilla/Attributes.h"
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#include "nsGenericHTMLElement.h"
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#include "nsObjectLoadingContent.h"
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#include "nsIDOMHTMLObjectElement.h"
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#include "nsIConstraintValidation.h"
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namespace mozilla {
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namespace dom {
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class HTMLFormSubmission;
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class HTMLObjectElement final : public nsGenericHTMLFormElement
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, public nsObjectLoadingContent
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, public nsIDOMHTMLObjectElement
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, public nsIConstraintValidation
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{
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public:
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explicit HTMLObjectElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo,
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FromParser aFromParser = NOT_FROM_PARSER);
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// nsISupports
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NS_DECL_ISUPPORTS_INHERITED
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NS_IMPL_FROMCONTENT_HTML_WITH_TAG(HTMLObjectElement, object)
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virtual int32_t TabIndexDefault() override;
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#ifdef XP_MACOSX
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// nsIDOMEventTarget
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NS_IMETHOD PostHandleEvent(EventChainPostVisitor& aVisitor) override;
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// Helper methods
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static void OnFocusBlurPlugin(Element* aElement, bool aFocus);
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static void HandleFocusBlurPlugin(Element* aElement, WidgetEvent* aEvent);
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static void HandlePluginCrashed(Element* aElement);
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static void HandlePluginInstantiated(Element* aElement);
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// Weak pointer. Null if last action was blur.
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static Element* sLastFocused;
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#endif
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// Element
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virtual bool IsInteractiveHTMLContent(bool aIgnoreTabindex) const override;
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// EventTarget
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virtual void AsyncEventRunning(AsyncEventDispatcher* aEvent) override;
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// nsIDOMHTMLObjectElement
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NS_DECL_NSIDOMHTMLOBJECTELEMENT
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virtual nsresult BindToTree(nsIDocument *aDocument, nsIContent *aParent,
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nsIContent *aBindingParent,
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bool aCompileEventHandlers) override;
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virtual void UnbindFromTree(bool aDeep = true,
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bool aNullParent = true) override;
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virtual bool IsHTMLFocusable(bool aWithMouse, bool *aIsFocusable, int32_t *aTabIndex) override;
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virtual IMEState GetDesiredIMEState() override;
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// Overriden nsIFormControl methods
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NS_IMETHOD_(uint32_t) GetType() const override
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{
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return NS_FORM_OBJECT;
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}
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NS_IMETHOD Reset() override;
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NS_IMETHOD SubmitNamesValues(HTMLFormSubmission *aFormSubmission) override;
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virtual bool IsDisabled() const override { return false; }
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virtual void DoneAddingChildren(bool aHaveNotified) override;
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virtual bool IsDoneAddingChildren() override;
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virtual bool ParseAttribute(int32_t aNamespaceID,
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nsIAtom *aAttribute,
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const nsAString &aValue,
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nsAttrValue &aResult) override;
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virtual nsMapRuleToAttributesFunc GetAttributeMappingFunction() const override;
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NS_IMETHOD_(bool) IsAttributeMapped(const nsIAtom *aAttribute) const override;
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virtual EventStates IntrinsicState() const override;
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virtual void DestroyContent() override;
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// nsObjectLoadingContent
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virtual uint32_t GetCapabilities() const override;
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virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult) const override;
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nsresult CopyInnerTo(Element* aDest);
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void StartObjectLoad() { StartObjectLoad(true); }
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HTMLObjectElement,
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nsGenericHTMLFormElement)
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// Web IDL binding methods
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// XPCOM GetData is ok; note that it's a URI attribute with a weird base URI
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void SetData(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::data, aValue, aRv);
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}
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void GetType(DOMString& aValue)
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{
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GetHTMLAttr(nsGkAtoms::type, aValue);
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}
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void SetType(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::type, aValue, aRv);
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}
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bool TypeMustMatch()
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{
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return GetBoolAttr(nsGkAtoms::typemustmatch);
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}
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void SetTypeMustMatch(bool aValue, ErrorResult& aRv)
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{
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SetHTMLBoolAttr(nsGkAtoms::typemustmatch, aValue, aRv);
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}
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void GetName(DOMString& aValue)
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{
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GetHTMLAttr(nsGkAtoms::name, aValue);
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}
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void SetName(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::name, aValue, aRv);
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}
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void GetUseMap(DOMString& aValue)
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{
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GetHTMLAttr(nsGkAtoms::usemap, aValue);
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}
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void SetUseMap(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::usemap, aValue, aRv);
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}
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using nsGenericHTMLFormElement::GetForm;
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void GetWidth(DOMString& aValue)
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{
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GetHTMLAttr(nsGkAtoms::width, aValue);
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}
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void SetWidth(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::width, aValue, aRv);
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}
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void GetHeight(DOMString& aValue)
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{
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GetHTMLAttr(nsGkAtoms::height, aValue);
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}
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void SetHeight(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::height, aValue, aRv);
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}
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using nsObjectLoadingContent::GetContentDocument;
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nsPIDOMWindowOuter*
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GetContentWindow(nsIPrincipal& aSubjectPrincipal);
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using nsIConstraintValidation::CheckValidity;
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using nsIConstraintValidation::ReportValidity;
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using nsIConstraintValidation::GetValidationMessage;
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void GetAlign(DOMString& aValue)
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{
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GetHTMLAttr(nsGkAtoms::align, aValue);
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}
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void SetAlign(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::align, aValue, aRv);
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}
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void GetArchive(DOMString& aValue)
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{
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GetHTMLAttr(nsGkAtoms::archive, aValue);
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}
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void SetArchive(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::archive, aValue, aRv);
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}
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// XPCOM GetCode is ok
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void SetCode(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::code, aValue, aRv);
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}
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bool Declare()
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{
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return GetBoolAttr(nsGkAtoms::declare);
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}
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void SetDeclare(bool aValue, ErrorResult& aRv)
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{
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SetHTMLBoolAttr(nsGkAtoms::declare, aValue, aRv);
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}
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uint32_t Hspace()
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{
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return GetUnsignedIntAttr(nsGkAtoms::hspace, 0);
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}
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void SetHspace(uint32_t aValue, ErrorResult& aRv)
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{
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SetUnsignedIntAttr(nsGkAtoms::hspace, aValue, 0, aRv);
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}
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void GetStandby(DOMString& aValue)
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{
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GetHTMLAttr(nsGkAtoms::standby, aValue);
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}
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void SetStandby(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::standby, aValue, aRv);
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}
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uint32_t Vspace()
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{
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return GetUnsignedIntAttr(nsGkAtoms::vspace, 0);
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}
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void SetVspace(uint32_t aValue, ErrorResult& aRv)
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{
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SetUnsignedIntAttr(nsGkAtoms::vspace, aValue, 0, aRv);
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}
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// XPCOM GetCodebase is ok; note that it's a URI attribute
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void SetCodeBase(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::codebase, aValue, aRv);
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}
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void GetCodeType(DOMString& aValue)
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{
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GetHTMLAttr(nsGkAtoms::codetype, aValue);
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}
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void SetCodeType(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::codetype, aValue, aRv);
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}
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void GetBorder(DOMString& aValue)
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{
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GetHTMLAttr(nsGkAtoms::border, aValue);
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}
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void SetBorder(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::border, aValue, aRv);
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}
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nsIDocument*
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GetSVGDocument(nsIPrincipal& aSubjectPrincipal)
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{
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return GetContentDocument(aSubjectPrincipal);
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}
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protected:
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virtual nsresult AfterSetAttr(int32_t aNamespaceID, nsIAtom* aName,
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const nsAttrValue* aValue,
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const nsAttrValue* aOldValue,
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nsIPrincipal* aSubjectPrincipal,
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bool aNotify) override;
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virtual nsresult OnAttrSetButNotChanged(int32_t aNamespaceID, nsIAtom* aName,
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const nsAttrValueOrString& aValue,
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bool aNotify) override;
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private:
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/**
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* Calls LoadObject with the correct arguments to start the plugin load.
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*/
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void StartObjectLoad(bool aNotify);
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/**
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* Returns if the element is currently focusable regardless of it's tabindex
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* value. This is used to know the default tabindex value.
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*/
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bool IsFocusableForTabIndex();
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nsContentPolicyType GetContentPolicyType() const override
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{
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return nsIContentPolicy::TYPE_INTERNAL_OBJECT;
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}
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virtual ~HTMLObjectElement();
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virtual JSObject* WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto) override;
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static void MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
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nsRuleData* aData);
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/**
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* This function is called by AfterSetAttr and OnAttrSetButNotChanged.
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* This function will be called by AfterSetAttr whether the attribute is being
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* set or unset.
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*
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* @param aNamespaceID the namespace of the attr being set
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* @param aName the localname of the attribute being set
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* @param aNotify Whether we plan to notify document observers.
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*/
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nsresult AfterMaybeChangeAttr(int32_t aNamespaceID, nsIAtom* aName,
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bool aNotify);
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bool mIsDoneAddingChildren;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_HTMLObjectElement_h
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