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https://repo.dactyloidae.xyz/Dactyloidae/UXP.git
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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.
118 lines
3.6 KiB
C++
118 lines
3.6 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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/*
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* Implementation of DOM Core's nsIDOMAttr node.
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*/
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#ifndef mozilla_dom_Attr_h
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#define mozilla_dom_Attr_h
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#include "mozilla/Attributes.h"
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#include "nsIAttribute.h"
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#include "nsIDOMAttr.h"
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#include "nsIDOMText.h"
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#include "nsIDOMNodeList.h"
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#include "nsString.h"
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#include "nsCOMPtr.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsStubMutationObserver.h"
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class nsIDocument;
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namespace mozilla {
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class EventChainPreVisitor;
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namespace dom {
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// Attribute helper class used to wrap up an attribute with a dom
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// object that implements nsIDOMAttr and nsIDOMNode
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class Attr final : public nsIAttribute,
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public nsIDOMAttr
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{
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virtual ~Attr() {}
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public:
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Attr(nsDOMAttributeMap* aAttrMap,
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already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
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const nsAString& aValue);
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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// nsIDOMNode interface
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NS_FORWARD_NSIDOMNODE_TO_NSINODE
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virtual void GetTextContentInternal(nsAString& aTextContent,
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ErrorResult& aError) override;
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virtual void SetTextContentInternal(const nsAString& aTextContent,
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ErrorResult& aError) override;
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virtual void GetNodeValueInternal(nsAString& aNodeValue) override;
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virtual void SetNodeValueInternal(const nsAString& aNodeValue,
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ErrorResult& aError) override;
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// nsIDOMAttr interface
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NS_DECL_NSIDOMATTR
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virtual nsresult GetEventTargetParent(EventChainPreVisitor& aVisitor) override;
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// nsIAttribute interface
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void SetMap(nsDOMAttributeMap *aMap) override;
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Element* GetElement() const;
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nsresult SetOwnerDocument(nsIDocument* aDocument) override;
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// nsINode interface
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virtual bool IsNodeOfType(uint32_t aFlags) const override;
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virtual uint32_t GetChildCount() const override;
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virtual nsIContent *GetChildAt(uint32_t aIndex) const override;
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virtual nsIContent * const * GetChildArray(uint32_t* aChildCount) const override;
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virtual int32_t IndexOf(const nsINode* aPossibleChild) const override;
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virtual nsresult InsertChildAt(nsIContent* aKid, uint32_t aIndex,
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bool aNotify) override;
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virtual void RemoveChildAt(uint32_t aIndex, bool aNotify) override;
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virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult) const override;
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virtual already_AddRefed<nsIURI> GetBaseURI(bool aTryUseXHRDocBaseURI = false) const override;
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static void Initialize();
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static void Shutdown();
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NS_DECL_CYCLE_COLLECTION_SKIPPABLE_SCRIPT_HOLDER_CLASS_AMBIGUOUS(Attr,
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nsIAttribute)
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virtual nsIDOMNode* AsDOMNode() override { return this; }
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// WebIDL
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virtual JSObject* WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
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// XPCOM GetName() is OK
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void GetValue(nsString& val, nsIPrincipal&)
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{
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GetValue(val);
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}
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void SetValue(const nsAString& aValue, nsIPrincipal* aTriggeringPrincipal, ErrorResult& aRv);
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bool Specified() const;
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// XPCOM GetNamespaceURI() is OK
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// XPCOM GetPrefix() is OK
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// XPCOM GetLocalName() is OK
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Element* GetOwnerElement(ErrorResult& aRv);
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protected:
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virtual Element* GetNameSpaceElement() override
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{
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return GetElement();
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}
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static bool sInitialized;
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private:
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nsString mValue;
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};
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} // namespace dom
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} // namespace mozilla
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#endif /* mozilla_dom_Attr_h */
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