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Diffstat (limited to '')
| -rw-r--r-- | caps/OriginAttributes.h | 289 |
1 files changed, 289 insertions, 0 deletions
diff --git a/caps/OriginAttributes.h b/caps/OriginAttributes.h new file mode 100644 index 0000000000..02e52f0799 --- /dev/null +++ b/caps/OriginAttributes.h @@ -0,0 +1,289 @@ +/* -*- 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/ChromeUtilsBinding.h" +#include "mozilla/StaticPrefs_privacy.h" +#include "nsIScriptSecurityManager.h" + +namespace mozilla { + +class OriginAttributes : public dom::OriginAttributesDictionary { + public: + OriginAttributes() = default; + + 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); + void SetFirstPartyDomain(const bool aIsTopLevelDocument, + const nsAString& aDomain, bool aForced = false); + + void SetPartitionKey(nsIURI* aURI); + void SetPartitionKey(const nsACString& aDomain); + void SetPartitionKey(const nsAString& aDomain); + + enum { + STRIP_FIRST_PARTY_DOMAIN = 0x01, + STRIP_USER_CONTEXT_ID = 0x02, + STRIP_PRIVATE_BROWSING_ID = 0x04, + STRIP_PARITION_KEY = 0x08, + }; + + 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; + } + + if (aFlags & STRIP_PRIVATE_BROWSING_ID) { + mPrivateBrowsingId = + nsIScriptSecurityManager::DEFAULT_PRIVATE_BROWSING_ID; + } + + if (aFlags & STRIP_PARITION_KEY) { + mPartitionKey.Truncate(); + } + } + + bool operator==(const OriginAttributes& aOther) const { + return EqualsIgnoringFPD(aOther) && + mFirstPartyDomain == aOther.mFirstPartyDomain && + // FIXME(emilio, bug 1667440): Should this be part of + // EqualsIgnoringFPD instead? + mPartitionKey == aOther.mPartitionKey; + } + + bool operator!=(const OriginAttributes& aOther) const { + return !(*this == aOther); + } + + [[nodiscard]] bool EqualsIgnoringFPD(const OriginAttributes& aOther) const { + return mInIsolatedMozBrowser == aOther.mInIsolatedMozBrowser && + mUserContextId == aOther.mUserContextId && + mPrivateBrowsingId == aOther.mPrivateBrowsingId && + mGeckoViewSessionContextId == aOther.mGeckoViewSessionContextId; + } + + [[nodiscard]] bool EqualsIgnoringPartitionKey( + const OriginAttributes& aOther) const { + return EqualsIgnoringFPD(aOther) && + mFirstPartyDomain == aOther.mFirstPartyDomain; + } + + // 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; + + // Like CreateSuffix, but returns an atom instead of producing a string. + already_AddRefed<nsAtom> CreateSuffixAtom() const; + + // Don't use this method for anything else than debugging! + void CreateAnonymizedSuffix(nsACString& aStr) const; + + [[nodiscard]] bool PopulateFromSuffix(const nsACString& aStr); + + // Populates the attributes from a string like + // |uri^key1=value1&key2=value2| and returns the uri without the suffix. + [[nodiscard]] 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 StaticPrefs::privacy_firstparty_isolate(); + } + + // 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 !StaticPrefs::privacy_firstparty_isolate() || + StaticPrefs::privacy_firstparty_isolate_restrict_opener_access(); + } + + // Check whether we block the postMessage across different FPDs when the + // targetOrigin is '*'. + [[nodiscard]] static inline bool IsBlockPostMessageForFPI() { + return StaticPrefs::privacy_firstparty_isolate() && + StaticPrefs::privacy_firstparty_isolate_block_post_message(); + } + + // returns true if the originAttributes suffix has mPrivateBrowsingId value + // different than 0. + static bool IsPrivateBrowsing(const nsACString& aOrigin); + + // Parse a partitionKey of the format "(<scheme>,<baseDomain>,[port])" into + // its components. + // Returns false if the partitionKey cannot be parsed because the format is + // invalid. + static bool ParsePartitionKey(const nsAString& aPartitionKey, + nsAString& outScheme, nsAString& outBaseDomain, + int32_t& outPort); +}; + +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() = default; + + 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; + } + + if (mGeckoViewSessionContextId.WasPassed() && + mGeckoViewSessionContextId.Value() != + aAttrs.mGeckoViewSessionContextId) { + return false; + } + + // If both mPartitionKey and mPartitionKeyPattern are passed, mPartitionKey + // takes precedence. + if (mPartitionKey.WasPassed()) { + if (mPartitionKey.Value() != aAttrs.mPartitionKey) { + return false; + } + } else if (mPartitionKeyPattern.WasPassed()) { + auto& pkPattern = mPartitionKeyPattern.Value(); + + if (pkPattern.mScheme.WasPassed() || pkPattern.mBaseDomain.WasPassed() || + pkPattern.mPort.WasPassed()) { + if (aAttrs.mPartitionKey.IsEmpty()) { + return false; + } + + nsString scheme; + nsString baseDomain; + int32_t port; + bool success = OriginAttributes::ParsePartitionKey( + aAttrs.mPartitionKey, scheme, baseDomain, port); + if (!success) { + return false; + } + + if (pkPattern.mScheme.WasPassed() && + pkPattern.mScheme.Value() != scheme) { + return false; + } + if (pkPattern.mBaseDomain.WasPassed() && + pkPattern.mBaseDomain.Value() != baseDomain) { + return false; + } + if (pkPattern.mPort.WasPassed() && pkPattern.mPort.Value() != port) { + 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; + } + + if (mGeckoViewSessionContextId.WasPassed() && + aOther.mGeckoViewSessionContextId.WasPassed() && + mGeckoViewSessionContextId.Value() != + aOther.mGeckoViewSessionContextId.Value()) { + return false; + } + + if (mPartitionKey.WasPassed() && aOther.mPartitionKey.WasPassed() && + mPartitionKey.Value() != aOther.mPartitionKey.Value()) { + return false; + } + + if (mPartitionKeyPattern.WasPassed() && + aOther.mPartitionKeyPattern.WasPassed()) { + auto& self = mPartitionKeyPattern.Value(); + auto& other = aOther.mPartitionKeyPattern.Value(); + + if (self.mScheme.WasPassed() && other.mScheme.WasPassed() && + self.mScheme.Value() != other.mScheme.Value()) { + return false; + } + if (self.mBaseDomain.WasPassed() && other.mBaseDomain.WasPassed() && + self.mBaseDomain.Value() != other.mBaseDomain.Value()) { + return false; + } + if (self.mPort.WasPassed() && other.mPort.WasPassed() && + self.mPort.Value() != other.mPort.Value()) { + return false; + } + } + + return true; + } +}; + +} // namespace mozilla + +#endif /* mozilla_OriginAttributes_h */ |