mirror of
https://github.com/mozilla/gecko-dev.git
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90 lines
3.2 KiB
C++
90 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; 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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/* describes principals by their orginating uris*/
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#ifndef nsJSPrincipals_h__
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#define nsJSPrincipals_h__
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#include "js/Principals.h"
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#include "nsIPrincipal.h"
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struct JSContext;
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struct JSStructuredCloneReader;
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struct JSStructuredCloneWriter;
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namespace mozilla {
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namespace ipc {
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class PrincipalInfo;
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} // namespace ipc
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} // namespace mozilla
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class nsJSPrincipals : public nsIPrincipal, public JSPrincipals {
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public:
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/* SpiderMonkey security callbacks. */
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static bool Subsume(JSPrincipals* jsprin, JSPrincipals* other);
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static void Destroy(JSPrincipals* jsprin);
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/* JSReadPrincipalsOp for nsJSPrincipals */
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static bool ReadPrincipals(JSContext* aCx, JSStructuredCloneReader* aReader,
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JSPrincipals** aOutPrincipals);
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static bool ReadKnownPrincipalType(JSContext* aCx,
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JSStructuredCloneReader* aReader,
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uint32_t aTag,
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JSPrincipals** aOutPrincipals);
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/* For write() implementations of off-main-thread JSPrincipals. */
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static bool WritePrincipalInfo(JSStructuredCloneWriter* aWriter,
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const mozilla::ipc::PrincipalInfo& aInfo);
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// This class is used on the main thread to specify which principal to use
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// when reading principals data that was set on a DOM worker thread.
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// DOM workers do not use principals from Gecko's point of view, and any
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// JSPrincipals used internally will be a shared singleton object. When that
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// singleton is written out and later read on the main thread, we substitute
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// the principal specified with this class.
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struct MOZ_RAII AutoSetActiveWorkerPrincipal {
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explicit AutoSetActiveWorkerPrincipal(nsIPrincipal* aPrincipal);
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~AutoSetActiveWorkerPrincipal();
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};
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bool write(JSContext* aCx, JSStructuredCloneWriter* aWriter) final;
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bool isSystemOrAddonPrincipal() final;
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/*
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* Get a weak reference to nsIPrincipal associated with the given JS
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* principal, and vice-versa.
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*/
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static nsJSPrincipals* get(JSPrincipals* principals) {
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nsJSPrincipals* self = static_cast<nsJSPrincipals*>(principals);
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MOZ_ASSERT_IF(self, self->debugToken == DEBUG_TOKEN);
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return self;
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}
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static nsJSPrincipals* get(nsIPrincipal* principal) {
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nsJSPrincipals* self = static_cast<nsJSPrincipals*>(principal);
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MOZ_ASSERT_IF(self, self->debugToken == DEBUG_TOKEN);
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return self;
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}
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NS_IMETHOD_(MozExternalRefCountType) AddRef(void) override;
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NS_IMETHOD_(MozExternalRefCountType) Release(void) override;
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nsJSPrincipals() {
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refcount = 0;
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setDebugToken(DEBUG_TOKEN);
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}
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/**
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* Return a string that can be used as JS script filename in error reports.
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*/
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virtual nsresult GetScriptLocation(nsACString& aStr) = 0;
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static const uint32_t DEBUG_TOKEN = 0x0bf41760;
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protected:
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virtual ~nsJSPrincipals() { setDebugToken(0); }
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};
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#endif /* nsJSPrincipals_h__ */
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