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/* -*- Mode: C++; tab-width: 2; 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/. */
/**
* This is the principal that has no rights and can't be accessed by
* anything other than itself and chrome; null principals are not
* same-origin with anything but themselves.
*/
#ifndef mozilla_NullPrincipal_h
#define mozilla_NullPrincipal_h
#include "nsIPrincipal.h"
#include "nsJSPrincipals.h"
#include "nsCOMPtr.h"
#include "mozilla/BasePrincipal.h"
#include "gtest/MozGtestFriend.h"
class nsIDocShell;
class nsIURI;
namespace Json {
class Value;
}
#define NS_NULLPRINCIPAL_CID \
{ \
0xbd066e5f, 0x146f, 0x4472, { \
0x83, 0x31, 0x7b, 0xfd, 0x05, 0xb1, 0xed, 0x90 \
} \
}
#define NS_NULLPRINCIPAL_CONTRACTID "@mozilla.org/nullprincipal;1"
#define NS_NULLPRINCIPAL_SCHEME "moz-nullprincipal"
namespace mozilla {
class NullPrincipal final : public BasePrincipal {
public:
// This should only be used by deserialization, and the factory constructor.
// Other consumers should use the Create and CreateWithInheritedAttributes
// methods.
NullPrincipal() : BasePrincipal(eNullPrincipal) {}
static PrincipalKind Kind() { return eNullPrincipal; }
NS_DECL_NSISERIALIZABLE
NS_IMETHOD QueryInterface(REFNSIID aIID, void** aInstancePtr) override;
uint32_t GetHashValue() override;
NS_IMETHOD GetURI(nsIURI** aURI) override;
NS_IMETHOD GetIsOriginPotentiallyTrustworthy(bool* aResult) override;
NS_IMETHOD GetDomain(nsIURI** aDomain) override;
NS_IMETHOD SetDomain(nsIURI* aDomain) override;
NS_IMETHOD GetBaseDomain(nsACString& aBaseDomain) override;
NS_IMETHOD GetAddonId(nsAString& aAddonId) override;
static already_AddRefed<NullPrincipal> CreateWithInheritedAttributes(
nsIPrincipal* aInheritFrom);
// Create NullPrincipal with origin attributes from docshell.
// If aIsFirstParty is true, and the pref 'privacy.firstparty.isolate' is also
// enabled, the mFirstPartyDomain value of the origin attributes will be set
// to an unique value.
static already_AddRefed<NullPrincipal> CreateWithInheritedAttributes(
nsIDocShell* aDocShell, bool aIsFirstParty = false);
static already_AddRefed<NullPrincipal> CreateWithInheritedAttributes(
const OriginAttributes& aOriginAttributes, bool aIsFirstParty = false);
static already_AddRefed<NullPrincipal> Create(
const OriginAttributes& aOriginAttributes, nsIURI* aURI = nullptr);
static already_AddRefed<NullPrincipal> CreateWithoutOriginAttributes();
nsresult Init(const OriginAttributes& aOriginAttributes = OriginAttributes(),
nsIURI* aURI = nullptr);
virtual nsresult GetScriptLocation(nsACString& aStr) override;
nsresult GetSiteIdentifier(SiteIdentifier& aSite) override {
aSite.Init(this);
return NS_OK;
}
virtual nsresult PopulateJSONObject(Json::Value& aObject) override;
// Serializable keys are the valid enum fields the serialization supports
enum SerializableKeys : uint8_t { eSpec = 0, eSuffix, eMax = eSuffix };
typedef mozilla::BasePrincipal::KeyValT<SerializableKeys> KeyVal;
static already_AddRefed<BasePrincipal> FromProperties(
nsTArray<NullPrincipal::KeyVal>& aFields);
protected:
virtual ~NullPrincipal() = default;
bool SubsumesInternal(nsIPrincipal* aOther,
DocumentDomainConsideration aConsideration) override {
MOZ_ASSERT(aOther);
return FastEquals(aOther);
}
bool MayLoadInternal(nsIURI* aURI) override;
nsCOMPtr<nsIURI> mURI;
private:
FRIEND_TEST(OriginAttributes, NullPrincipal);
// If aIsFirstParty is true, this NullPrincipal will be initialized based on
// the aOriginAttributes with FirstPartyDomain set to a unique value.
// This value is generated from mURI.path, with ".mozilla" appended at the
// end. aURI is used for testing purpose to assign specific UUID rather than
// random generated one.
nsresult Init(const OriginAttributes& aOriginAttributes, bool aIsFirstParty,
nsIURI* aURI = nullptr);
};
} // namespace mozilla
#endif // mozilla_NullPrincipal_h
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