core/frame/Location.idl

/*
 * Copyright (C) 2008 Apple Inc.  All rights reserved.
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 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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// https://html.spec.whatwg.org/multipage/browsers.html#location

[
    CheckSecurity=Receiver,
    DependentLifetime,
    Unforgeable
] interface Location {
    // |assign| is *NOT* cross-origin accessible in the spec, but it needs
    // the Incumbent realm when navigating the page.  See the below link.
    // https://html.spec.whatwg.org/multipage/browsers.html#location-object-navigate
    // Unfortunately, Blink does not support the Incumbent realm so far, and
    // we need a hack of assignOriginSafeMethodGetter to simulate the Incumbent
    // realm.  Thus, we have [CrossOrigin] here just for the hack although
    // |assign| itself is not cross-origin accessible.
    // TODO(yukishiino): Remove [CrossOrigin] once we support the Incumbent
    // realm correctly.
    [CallWith=(CurrentWindow,EnteredWindow), CrossOrigin, RaisesException] void assign(DOMString url);

    // |replace|, and *writing* |href| do not require a security check, as they
    // *change* the page, and thus these do not change any property of an
    // *existing* document at a different origin.
    // However, *reading* |href|, or accessing any component, is a security
    // problem, since that allows tracking navigation.
    // https://html.spec.whatwg.org/multipage/browsers.html#crossoriginproperties-(-o-)
    [CallWith=(CurrentWindow,EnteredWindow), CrossOrigin, RaisesException] void replace(DOMString url);
    [CallWith=CurrentWindow] void reload();

    // TODO(foolip): |ancestorOrigins| should have [Unforgeable, SameObject].
    readonly attribute DOMStringList ancestorOrigins;

    // TODO(foolip): Per spec, Location implements URLUtils. The below is
    // mostly like the URLUtils interface, but with some members missing and
    // using DOMString instead of USVString.
    [SetterCallWith=(CurrentWindow,EnteredWindow), CrossOrigin=Setter, RaisesException=Setter] attribute URLString href;
    [NotEnumerable] DOMString toString();
    [MeasureAs=LocationOrigin] readonly attribute DOMString origin;

    [SetterCallWith=(CurrentWindow,EnteredWindow), RaisesException=Setter] attribute DOMString protocol;
    [SetterCallWith=(CurrentWindow,EnteredWindow), RaisesException=Setter] attribute DOMString host;
    [SetterCallWith=(CurrentWindow,EnteredWindow), RaisesException=Setter] attribute DOMString hostname;
    [SetterCallWith=(CurrentWindow,EnteredWindow), RaisesException=Setter] attribute DOMString port;
    [SetterCallWith=(CurrentWindow,EnteredWindow), RaisesException=Setter] attribute DOMString pathname;
    [SetterCallWith=(CurrentWindow,EnteredWindow), RaisesException=Setter] attribute DOMString search;
    [SetterCallWith=(CurrentWindow,EnteredWindow), RaisesException=Setter] attribute DOMString hash;

    // TODO(foolip): Location does not have a valueOf() override in the spec.
    // See the comment in Location.h for the purpose of this.
    [NotEnumerable, CallWith=ThisValue] any valueOf();
};