gecko-dev/caps/OriginAttributes.h
2019-05-03 17:13:17 +00:00

182 lines
6.0 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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_OriginAttributes_h
#define mozilla_OriginAttributes_h
#include "mozilla/dom/ChromeUtils.h"
#include "mozilla/dom/ChromeUtilsBinding.h"
#include "nsIScriptSecurityManager.h"
namespace mozilla {
class OriginAttributes : public dom::OriginAttributesDictionary {
public:
OriginAttributes() {}
explicit OriginAttributes(bool aInIsolatedMozBrowser) {
mInIsolatedMozBrowser = aInIsolatedMozBrowser;
}
explicit OriginAttributes(const OriginAttributesDictionary& aOther)
: OriginAttributesDictionary(aOther) {}
void SetFirstPartyDomain(const bool aIsTopLevelDocument, nsIURI* aURI,
bool aForced = false);
void SetFirstPartyDomain(const bool aIsTopLevelDocument,
const nsACString& aDomain);
enum {
STRIP_FIRST_PARTY_DOMAIN = 0x01,
STRIP_USER_CONTEXT_ID = 0x02,
};
inline void StripAttributes(uint32_t aFlags) {
if (aFlags & STRIP_FIRST_PARTY_DOMAIN) {
mFirstPartyDomain.Truncate();
}
if (aFlags & STRIP_USER_CONTEXT_ID) {
mUserContextId = nsIScriptSecurityManager::DEFAULT_USER_CONTEXT_ID;
}
}
bool operator==(const OriginAttributes& aOther) const {
return mInIsolatedMozBrowser == aOther.mInIsolatedMozBrowser &&
mUserContextId == aOther.mUserContextId &&
mPrivateBrowsingId == aOther.mPrivateBrowsingId &&
mFirstPartyDomain == aOther.mFirstPartyDomain;
}
bool operator!=(const OriginAttributes& aOther) const {
return !(*this == aOther);
}
MOZ_MUST_USE bool EqualsIgnoringFPD(const OriginAttributes& aOther) const {
return mInIsolatedMozBrowser == aOther.mInIsolatedMozBrowser &&
mUserContextId == aOther.mUserContextId &&
mPrivateBrowsingId == aOther.mPrivateBrowsingId;
}
// Serializes/Deserializes non-default values into the suffix format, i.e.
// |!key1=value1&key2=value2|. If there are no non-default attributes, this
// returns an empty string.
void CreateSuffix(nsACString& aStr) const;
// Don't use this method for anything else than debugging!
void CreateAnonymizedSuffix(nsACString& aStr) const;
MOZ_MUST_USE bool PopulateFromSuffix(const nsACString& aStr);
// Populates the attributes from a string like
// |uri!key1=value1&key2=value2| and returns the uri without the suffix.
MOZ_MUST_USE bool PopulateFromOrigin(const nsACString& aOrigin,
nsACString& aOriginNoSuffix);
// Helper function to match mIsPrivateBrowsing to existing private browsing
// flags. Once all other flags are removed, this can be removed too.
void SyncAttributesWithPrivateBrowsing(bool aInPrivateBrowsing);
// check if "privacy.firstparty.isolate" is enabled.
static inline bool IsFirstPartyEnabled() { return sFirstPartyIsolation; }
// check if the access of window.opener across different FPDs is restricted.
// We only restrict the access of window.opener when first party isolation
// is enabled and "privacy.firstparty.isolate.restrict_opener_access" is on.
static inline bool IsRestrictOpenerAccessForFPI() {
// We always want to restrict window.opener if first party isolation is
// disabled.
return !sFirstPartyIsolation || sRestrictedOpenerAccess;
}
// Check whether we block the postMessage across different FPDs when the
// targetOrigin is '*'.
static inline MOZ_MUST_USE bool IsBlockPostMessageForFPI() {
return sFirstPartyIsolation && sBlockPostMessageForFPI;
}
// returns true if the originAttributes suffix has mPrivateBrowsingId value
// different than 0.
static bool IsPrivateBrowsing(const nsACString& aOrigin);
static void InitPrefs();
private:
static bool sFirstPartyIsolation;
static bool sRestrictedOpenerAccess;
static bool sBlockPostMessageForFPI;
};
class OriginAttributesPattern : public dom::OriginAttributesPatternDictionary {
public:
// To convert a JSON string to an OriginAttributesPattern, do the following:
//
// OriginAttributesPattern pattern;
// if (!pattern.Init(aJSONString)) {
// ... // handle failure.
// }
OriginAttributesPattern() {}
explicit OriginAttributesPattern(
const OriginAttributesPatternDictionary& aOther)
: OriginAttributesPatternDictionary(aOther) {}
// Performs a match of |aAttrs| against this pattern.
bool Matches(const OriginAttributes& aAttrs) const {
if (mInIsolatedMozBrowser.WasPassed() &&
mInIsolatedMozBrowser.Value() != aAttrs.mInIsolatedMozBrowser) {
return false;
}
if (mUserContextId.WasPassed() &&
mUserContextId.Value() != aAttrs.mUserContextId) {
return false;
}
if (mPrivateBrowsingId.WasPassed() &&
mPrivateBrowsingId.Value() != aAttrs.mPrivateBrowsingId) {
return false;
}
if (mFirstPartyDomain.WasPassed() &&
mFirstPartyDomain.Value() != aAttrs.mFirstPartyDomain) {
return false;
}
return true;
}
bool Overlaps(const OriginAttributesPattern& aOther) const {
if (mInIsolatedMozBrowser.WasPassed() &&
aOther.mInIsolatedMozBrowser.WasPassed() &&
mInIsolatedMozBrowser.Value() != aOther.mInIsolatedMozBrowser.Value()) {
return false;
}
if (mUserContextId.WasPassed() && aOther.mUserContextId.WasPassed() &&
mUserContextId.Value() != aOther.mUserContextId.Value()) {
return false;
}
if (mPrivateBrowsingId.WasPassed() &&
aOther.mPrivateBrowsingId.WasPassed() &&
mPrivateBrowsingId.Value() != aOther.mPrivateBrowsingId.Value()) {
return false;
}
if (mFirstPartyDomain.WasPassed() && aOther.mFirstPartyDomain.WasPassed() &&
mFirstPartyDomain.Value() != aOther.mFirstPartyDomain.Value()) {
return false;
}
return true;
}
};
} // namespace mozilla
#endif /* mozilla_OriginAttributes_h */