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https://gitlab.winehq.org/wine/wine-gecko.git
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97 lines
3.1 KiB
C++
97 lines
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* vim: set ts=4 sw=4 et tw=99 ft=cpp:
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*
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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 __AccessCheck_h__
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#define __AccessCheck_h__
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#include "jsapi.h"
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#include "jswrapper.h"
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#include "WrapperFactory.h"
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class nsIPrincipal;
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namespace xpc {
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class AccessCheck {
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public:
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static bool subsumes(JSCompartment *a, JSCompartment *b);
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static bool subsumes(JSObject *a, JSObject *b);
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static bool wrapperSubsumes(JSObject *wrapper);
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static bool subsumesIgnoringDomain(JSCompartment *a, JSCompartment *b);
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static bool isChrome(JSCompartment *compartment);
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static bool isChrome(JSObject *obj);
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static bool callerIsChrome();
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static nsIPrincipal *getPrincipal(JSCompartment *compartment);
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static bool isCrossOriginAccessPermitted(JSContext *cx, JSObject *obj, jsid id,
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js::Wrapper::Action act);
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static bool callerIsXBL(JSContext *cx);
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static bool isSystemOnlyAccessPermitted(JSContext *cx);
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static bool needsSystemOnlyWrapper(JSObject *obj);
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static bool isScriptAccessOnly(JSContext *cx, JSObject *wrapper);
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static void deny(JSContext *cx, jsid id);
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};
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struct Policy {
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};
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// This policy only permits access to the object if the subject can touch
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// system objects.
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struct OnlyIfSubjectIsSystem : public Policy {
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static bool check(JSContext *cx, JSObject *wrapper, jsid id, js::Wrapper::Action act) {
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return AccessCheck::isSystemOnlyAccessPermitted(cx);
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}
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static bool deny(JSContext *cx, jsid id, js::Wrapper::Action act) {
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AccessCheck::deny(cx, id);
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return false;
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}
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};
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// This policy only permits access to properties that are safe to be used
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// across origins.
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struct CrossOriginAccessiblePropertiesOnly : public Policy {
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static bool check(JSContext *cx, JSObject *wrapper, jsid id, js::Wrapper::Action act) {
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return AccessCheck::isCrossOriginAccessPermitted(cx, wrapper, id, act);
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}
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static bool deny(JSContext *cx, jsid id, js::Wrapper::Action act) {
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AccessCheck::deny(cx, id);
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return false;
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}
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};
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// This policy only permits access to properties if they appear in the
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// objects exposed properties list.
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struct ExposedPropertiesOnly : public Policy {
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static bool check(JSContext *cx, JSObject *wrapper, jsid id, js::Wrapper::Action act);
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static bool deny(JSContext *cx, jsid id, js::Wrapper::Action act) {
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// For gets, silently fail.
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if (act == js::Wrapper::GET)
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return true;
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// For sets,throw an exception.
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AccessCheck::deny(cx, id);
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return false;
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}
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};
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// Components specific policy
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struct ComponentsObjectPolicy : public Policy {
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static bool check(JSContext *cx, JSObject *wrapper, jsid id, js::Wrapper::Action act);
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static bool deny(JSContext *cx, jsid id, js::Wrapper::Action act) {
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AccessCheck::deny(cx, id);
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return false;
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}
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};
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}
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#endif /* __AccessCheck_h__ */
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