1 // Copyright 2023 The Chromium Authors 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef NET_SHARED_DICTIONARY_SHARED_DICTIONARY_ISOLATION_KEY_H_ 6 #define NET_SHARED_DICTIONARY_SHARED_DICTIONARY_ISOLATION_KEY_H_ 7 8 #include <optional> 9 10 #include "net/base/net_export.h" 11 #include "net/base/schemeful_site.h" 12 #include "url/origin.h" 13 14 namespace net { 15 class IsolationInfo; 16 class NetworkIsolationKey; 17 18 // Key used to isolate shared dictionary storages. 19 class NET_EXPORT SharedDictionaryIsolationKey { 20 public: 21 // Creates a SharedDictionaryIsolationKey. Returns nullopt when 22 // `frame_origin` or `top_frame_origin` of `isolation_info` is not set or 23 // opaque, or `nonce` is set. 24 static std::optional<SharedDictionaryIsolationKey> MaybeCreate( 25 const IsolationInfo& isolation_info); 26 27 // Creates a SharedDictionaryIsolationKey. Returns nullopt when 28 // `frame_origin` or `top_frame_origin` of `network_isolation_key` is not set 29 // or opaque, or `nonce` of `network_isolation_key` is set. 30 static std::optional<SharedDictionaryIsolationKey> MaybeCreate( 31 const NetworkIsolationKey& network_isolation_key, 32 const std::optional<url::Origin>& frame_origin); 33 34 SharedDictionaryIsolationKey() = default; 35 SharedDictionaryIsolationKey(const url::Origin& frame_origin, 36 const SchemefulSite& top_frame_site); 37 frame_origin()38 const url::Origin& frame_origin() const { return frame_origin_; } top_frame_site()39 const SchemefulSite& top_frame_site() const { return top_frame_site_; } 40 41 ~SharedDictionaryIsolationKey(); 42 43 SharedDictionaryIsolationKey(const SharedDictionaryIsolationKey& other); 44 SharedDictionaryIsolationKey(SharedDictionaryIsolationKey&& other); 45 SharedDictionaryIsolationKey& operator=( 46 const SharedDictionaryIsolationKey& other); 47 SharedDictionaryIsolationKey& operator=(SharedDictionaryIsolationKey&& other); 48 49 bool operator==(const SharedDictionaryIsolationKey& other) const { 50 return std::tie(frame_origin_, top_frame_site_) == 51 std::tie(other.frame_origin_, other.top_frame_site_); 52 } 53 bool operator!=(const SharedDictionaryIsolationKey& other) const { 54 return !(*this == other); 55 } 56 bool operator<(const SharedDictionaryIsolationKey& other) const { 57 return std::tie(frame_origin_, top_frame_site_) < 58 std::tie(other.frame_origin_, other.top_frame_site_); 59 } 60 61 private: 62 url::Origin frame_origin_; 63 SchemefulSite top_frame_site_; 64 }; 65 66 } // namespace net 67 68 #endif // NET_SHARED_DICTIONARY_SHARED_DICTIONARY_ISOLATION_KEY_H_ 69