Files
UXP/dom/html/HTMLSharedElement.h
Moonchild 824d0cad58 Issue #2736 - Part 2: Pass subject principal to SetAttribute and friends.
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.
2025-05-14 14:22:13 +08:00

184 lines
5.7 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 mozilla_dom_HTMLSharedElement_h
#define mozilla_dom_HTMLSharedElement_h
#include "nsIDOMHTMLBaseElement.h"
#include "nsIDOMHTMLDirectoryElement.h"
#include "nsIDOMHTMLQuoteElement.h"
#include "nsIDOMHTMLHeadElement.h"
#include "nsIDOMHTMLHtmlElement.h"
#include "nsGenericHTMLElement.h"
#include "nsGkAtoms.h"
#include "mozilla/Attributes.h"
#include "mozilla/Assertions.h"
namespace mozilla {
namespace dom {
class HTMLSharedElement final : public nsGenericHTMLElement,
public nsIDOMHTMLBaseElement,
public nsIDOMHTMLDirectoryElement,
public nsIDOMHTMLQuoteElement,
public nsIDOMHTMLHeadElement,
public nsIDOMHTMLHtmlElement
{
public:
explicit HTMLSharedElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
: nsGenericHTMLElement(aNodeInfo)
{
if (mNodeInfo->Equals(nsGkAtoms::head) ||
mNodeInfo->Equals(nsGkAtoms::html)) {
SetHasWeirdParserInsertionMode();
}
}
// nsISupports
NS_DECL_ISUPPORTS_INHERITED
// nsIDOMHTMLBaseElement
NS_DECL_NSIDOMHTMLBASEELEMENT
// nsIDOMHTMLQuoteElement
NS_DECL_NSIDOMHTMLQUOTEELEMENT
// nsIDOMHTMLHeadElement
NS_DECL_NSIDOMHTMLHEADELEMENT
// nsIDOMHTMLHtmlElement
NS_DECL_NSIDOMHTMLHTMLELEMENT
// nsIContent
virtual bool ParseAttribute(int32_t aNamespaceID,
nsIAtom* aAttribute,
const nsAString& aValue,
nsAttrValue& aResult) override;
virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
nsIContent* aBindingParent,
bool aCompileEventHandlers) override;
virtual void UnbindFromTree(bool aDeep = true,
bool aNullParent = true) override;
virtual nsMapRuleToAttributesFunc GetAttributeMappingFunction() const override;
NS_IMETHOD_(bool) IsAttributeMapped(const nsIAtom* aAttribute) const override;
virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult) const override;
// WebIDL API
// HTMLParamElement
void GetName(DOMString& aValue)
{
MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::param));
GetHTMLAttr(nsGkAtoms::name, aValue);
}
void SetName(const nsAString& aValue, ErrorResult& aResult)
{
MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::param));
SetHTMLAttr(nsGkAtoms::name, aValue, aResult);
}
void GetValue(DOMString& aValue)
{
MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::param));
GetHTMLAttr(nsGkAtoms::value, aValue);
}
void SetValue(const nsAString& aValue, ErrorResult& aResult)
{
MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::param));
SetHTMLAttr(nsGkAtoms::value, aValue, aResult);
}
void GetType(DOMString& aValue)
{
MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::param));
GetHTMLAttr(nsGkAtoms::type, aValue);
}
void SetType(const nsAString& aValue, ErrorResult& aResult)
{
MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::param));
SetHTMLAttr(nsGkAtoms::type, aValue, aResult);
}
void GetValueType(DOMString& aValue)
{
MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::param));
GetHTMLAttr(nsGkAtoms::valuetype, aValue);
}
void SetValueType(const nsAString& aValue, ErrorResult& aResult)
{
MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::param));
SetHTMLAttr(nsGkAtoms::valuetype, aValue, aResult);
}
// HTMLBaseElement
void GetTarget(DOMString& aValue)
{
MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::base));
GetHTMLAttr(nsGkAtoms::target, aValue);
}
void SetTarget(const nsAString& aValue, ErrorResult& aResult)
{
MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::base));
SetHTMLAttr(nsGkAtoms::target, aValue, aResult);
}
// The XPCOM GetHref is fine for us
void SetHref(const nsAString& aValue, ErrorResult& aResult)
{
MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::base));
SetHTMLAttr(nsGkAtoms::href, aValue, aResult);
}
// HTMLDirectoryElement
bool Compact() const
{
MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::dir));
return GetBoolAttr(nsGkAtoms::compact);
}
void SetCompact(bool aCompact, ErrorResult& aResult)
{
MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::dir));
SetHTMLBoolAttr(nsGkAtoms::compact, aCompact, aResult);
}
// HTMLQuoteElement
// The XPCOM GetCite works fine for us
void SetCite(const nsAString& aValue, ErrorResult& aResult)
{
MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::q) ||
mNodeInfo->Equals(nsGkAtoms::blockquote));
SetHTMLAttr(nsGkAtoms::cite, aValue, aResult);
}
// HTMLHtmlElement
void GetVersion(DOMString& aValue)
{
MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::html));
GetHTMLAttr(nsGkAtoms::version, aValue);
}
void SetVersion(const nsAString& aValue, ErrorResult& aResult)
{
MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::html));
SetHTMLAttr(nsGkAtoms::version, aValue, aResult);
}
protected:
virtual ~HTMLSharedElement();
virtual JSObject* WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
virtual nsresult AfterSetAttr(int32_t aNamespaceID, nsIAtom* aName,
const nsAttrValue* aValue,
const nsAttrValue* aOldValue,
nsIPrincipal* aSubjectPrincipal,
bool aNotify) override;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_HTMLSharedElement_h