forked from mirrors/gecko-dev
		
	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, that means capturing the subject principal of the caller who sets those attributes, which means making it available to AfterSetAttr hooks. MozReview-Commit-ID: BMDL2Uepg0X --HG-- extra : rebase_source : 25e438c243700a9368c393e40e3a6002d968d6c8
		
			
				
	
	
		
			177 lines
		
	
	
	
		
			5.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			177 lines
		
	
	
	
		
			5.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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_HTMLSharedElement_h
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#define mozilla_dom_HTMLSharedElement_h
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#include "nsIDOMHTMLBaseElement.h"
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#include "nsIDOMHTMLHtmlElement.h"
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#include "nsGenericHTMLElement.h"
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#include "nsGkAtoms.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/Assertions.h"
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namespace mozilla {
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namespace dom {
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class HTMLSharedElement final : public nsGenericHTMLElement,
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                                public nsIDOMHTMLBaseElement,
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                                public nsIDOMHTMLHtmlElement
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{
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public:
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  explicit HTMLSharedElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
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    : nsGenericHTMLElement(aNodeInfo)
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  {
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    if (mNodeInfo->Equals(nsGkAtoms::head) ||
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        mNodeInfo->Equals(nsGkAtoms::html)) {
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      SetHasWeirdParserInsertionMode();
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    }
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  }
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  // nsISupports
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  NS_DECL_ISUPPORTS_INHERITED
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  // nsIDOMHTMLBaseElement
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  NS_DECL_NSIDOMHTMLBASEELEMENT
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  // nsIDOMHTMLHtmlElement
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  NS_DECL_NSIDOMHTMLHTMLELEMENT
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  // nsIContent
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  virtual bool ParseAttribute(int32_t aNamespaceID,
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                                nsAtom* aAttribute,
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                                const nsAString& aValue,
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                                nsAttrValue& aResult) override;
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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 nsMapRuleToAttributesFunc GetAttributeMappingFunction() const override;
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  NS_IMETHOD_(bool) IsAttributeMapped(const nsAtom* aAttribute) const override;
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  virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult,
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                         bool aPreallocateChildren) const override;
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  // WebIDL API
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  // HTMLParamElement
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  void GetName(DOMString& aValue)
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  {
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    MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::param));
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    GetHTMLAttr(nsGkAtoms::name, aValue);
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  }
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  void SetName(const nsAString& aValue, ErrorResult& aResult)
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  {
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    MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::param));
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    SetHTMLAttr(nsGkAtoms::name, aValue, aResult);
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  }
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  void GetValue(DOMString& aValue)
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  {
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    MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::param));
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    GetHTMLAttr(nsGkAtoms::value, aValue);
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  }
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  void SetValue(const nsAString& aValue, ErrorResult& aResult)
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  {
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    MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::param));
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    SetHTMLAttr(nsGkAtoms::value, aValue, aResult);
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  }
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  void GetType(DOMString& aValue)
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  {
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    MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::param));
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    GetHTMLAttr(nsGkAtoms::type, aValue);
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  }
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  void SetType(const nsAString& aValue, ErrorResult& aResult)
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  {
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    MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::param));
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    SetHTMLAttr(nsGkAtoms::type, aValue, aResult);
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  }
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  void GetValueType(DOMString& aValue)
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  {
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    MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::param));
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    GetHTMLAttr(nsGkAtoms::valuetype, aValue);
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  }
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  void SetValueType(const nsAString& aValue, ErrorResult& aResult)
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  {
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    MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::param));
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    SetHTMLAttr(nsGkAtoms::valuetype, aValue, aResult);
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  }
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  // HTMLBaseElement
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  void GetTarget(DOMString& aValue)
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  {
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    MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::base));
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    GetHTMLAttr(nsGkAtoms::target, aValue);
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  }
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  void SetTarget(const nsAString& aValue, ErrorResult& aResult)
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  {
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    MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::base));
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    SetHTMLAttr(nsGkAtoms::target, aValue, aResult);
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  }
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  // The XPCOM GetHref is fine for us
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  void SetHref(const nsAString& aValue, ErrorResult& aResult)
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  {
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    MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::base));
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    SetHTMLAttr(nsGkAtoms::href, aValue, aResult);
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  }
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  // HTMLDirectoryElement
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  bool Compact() const
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  {
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    MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::dir));
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    return GetBoolAttr(nsGkAtoms::compact);
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  }
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  void SetCompact(bool aCompact, ErrorResult& aResult)
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  {
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    MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::dir));
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    SetHTMLBoolAttr(nsGkAtoms::compact, aCompact, aResult);
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  }
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  // HTMLQuoteElement
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  void GetCite(nsString& aCite)
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  {
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    GetHTMLURIAttr(nsGkAtoms::cite, aCite);
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  }
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  void SetCite(const nsAString& aValue, ErrorResult& aResult)
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  {
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    MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::q) ||
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               mNodeInfo->Equals(nsGkAtoms::blockquote));
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    SetHTMLAttr(nsGkAtoms::cite, aValue, aResult);
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  }
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  // HTMLHtmlElement
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  void GetVersion(DOMString& aValue)
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  {
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    MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::html));
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    GetHTMLAttr(nsGkAtoms::version, aValue);
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  }
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  void SetVersion(const nsAString& aValue, ErrorResult& aResult)
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  {
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    MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::html));
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    SetHTMLAttr(nsGkAtoms::version, aValue, aResult);
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  }
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protected:
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  virtual ~HTMLSharedElement();
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  virtual JSObject* WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
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  virtual nsresult AfterSetAttr(int32_t aNamespaceID, nsAtom* 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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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_HTMLSharedElement_h
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