177dd8813SKowalski, Kamil /* 277dd8813SKowalski, Kamil // Copyright (c) 2018 Intel Corporation 377dd8813SKowalski, Kamil // 477dd8813SKowalski, Kamil // Licensed under the Apache License, Version 2.0 (the "License"); 577dd8813SKowalski, Kamil // you may not use this file except in compliance with the License. 677dd8813SKowalski, Kamil // You may obtain a copy of the License at 777dd8813SKowalski, Kamil // 877dd8813SKowalski, Kamil // http://www.apache.org/licenses/LICENSE-2.0 977dd8813SKowalski, Kamil // 1077dd8813SKowalski, Kamil // Unless required by applicable law or agreed to in writing, software 1177dd8813SKowalski, Kamil // distributed under the License is distributed on an "AS IS" BASIS, 1277dd8813SKowalski, Kamil // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1377dd8813SKowalski, Kamil // See the License for the specific language governing permissions and 1477dd8813SKowalski, Kamil // limitations under the License. 1577dd8813SKowalski, Kamil */ 1677dd8813SKowalski, Kamil #pragma once 179712f8acSEd Tanous 18d5c80ad9SNan Zhou #include "error_messages.hpp" 198a7c4b47SNan Zhou #include "http_connection.hpp" 20d5c80ad9SNan Zhou #include "http_request.hpp" 21d5c80ad9SNan Zhou #include "http_response.hpp" 22185444b1SNan Zhou #include "human_sort.hpp" 23d5c80ad9SNan Zhou #include "logging.hpp" 24faf100f9SEd Tanous 25faf100f9SEd Tanous #include <nlohmann/json.hpp> 260627a2c7SEd Tanous 27185444b1SNan Zhou #include <algorithm> 28d5c80ad9SNan Zhou #include <array> 29d5c80ad9SNan Zhou #include <cmath> 30d5c80ad9SNan Zhou #include <cstddef> 31d5c80ad9SNan Zhou #include <cstdint> 32d5c80ad9SNan Zhou #include <limits> 33d5c80ad9SNan Zhou #include <map> 34d5c80ad9SNan Zhou #include <optional> 353544d2a7SEd Tanous #include <ranges> 36ea2e6eecSWilly Tu #include <span> 37d5c80ad9SNan Zhou #include <string> 38d5c80ad9SNan Zhou #include <string_view> 39d5c80ad9SNan Zhou #include <type_traits> 40d5c80ad9SNan Zhou #include <utility> 41d5c80ad9SNan Zhou #include <variant> 42d5c80ad9SNan Zhou #include <vector> 43d5c80ad9SNan Zhou 44d5c80ad9SNan Zhou // IWYU pragma: no_include <stdint.h> 451e75e1ddSNan Zhou // IWYU pragma: no_forward_declare crow::Request 461214b7e7SGunnar Mills 471abe55efSEd Tanous namespace redfish 481abe55efSEd Tanous { 491abe55efSEd Tanous 501abe55efSEd Tanous namespace json_util 511abe55efSEd Tanous { 5277dd8813SKowalski, Kamil 5377dd8813SKowalski, Kamil /** 5477dd8813SKowalski, Kamil * @brief Processes request to extract JSON from its body. If it fails, adds 5577dd8813SKowalski, Kamil * MalformedJSON message to response and ends it. 5677dd8813SKowalski, Kamil * 5777dd8813SKowalski, Kamil * @param[io] res Response object 5877dd8813SKowalski, Kamil * @param[in] req Request object 5977dd8813SKowalski, Kamil * @param[out] reqJson JSON object extracted from request's body 6077dd8813SKowalski, Kamil * 6177dd8813SKowalski, Kamil * @return true if JSON is valid, false when JSON is invalid and response has 6277dd8813SKowalski, Kamil * been filled with message and ended. 6377dd8813SKowalski, Kamil */ 6455c7b7a2SEd Tanous bool processJsonFromRequest(crow::Response& res, const crow::Request& req, 6577dd8813SKowalski, Kamil nlohmann::json& reqJson); 669712f8acSEd Tanous namespace details 679712f8acSEd Tanous { 68771cfa0fSJason M. Bills 691214b7e7SGunnar Mills template <typename Type> 702c70f800SEd Tanous struct IsOptional : std::false_type 711214b7e7SGunnar Mills {}; 729712f8acSEd Tanous 73771cfa0fSJason M. Bills template <typename Type> 742c70f800SEd Tanous struct IsOptional<std::optional<Type>> : std::true_type 751214b7e7SGunnar Mills {}; 769712f8acSEd Tanous 77771cfa0fSJason M. Bills template <typename Type> 782c70f800SEd Tanous struct IsVector : std::false_type 791214b7e7SGunnar Mills {}; 80b1556427SEd Tanous 811214b7e7SGunnar Mills template <typename Type> 822c70f800SEd Tanous struct IsVector<std::vector<Type>> : std::true_type 831214b7e7SGunnar Mills {}; 84b1556427SEd Tanous 851214b7e7SGunnar Mills template <typename Type> 862c70f800SEd Tanous struct IsStdArray : std::false_type 871214b7e7SGunnar Mills {}; 88318226c2SJames Feist 89318226c2SJames Feist template <typename Type, std::size_t size> 902c70f800SEd Tanous struct IsStdArray<std::array<Type, size>> : std::true_type 911214b7e7SGunnar Mills {}; 92318226c2SJames Feist 938099c517SEd Tanous template <typename Type> 948099c517SEd Tanous struct IsVariant : std::false_type 958099c517SEd Tanous {}; 968099c517SEd Tanous 978099c517SEd Tanous template <typename... Types> 988099c517SEd Tanous struct IsVariant<std::variant<Types...>> : std::true_type 998099c517SEd Tanous {}; 1008099c517SEd Tanous 101471a5eb8SAppaRao Puli enum class UnpackErrorCode 102471a5eb8SAppaRao Puli { 103471a5eb8SAppaRao Puli success, 104471a5eb8SAppaRao Puli invalidType, 105471a5eb8SAppaRao Puli outOfRange 106471a5eb8SAppaRao Puli }; 107471a5eb8SAppaRao Puli 108a6acbb31SJames Feist template <typename ToType, typename FromType> 109c09966bdSEd Tanous bool checkRange(const FromType& from [[maybe_unused]], 110c09966bdSEd Tanous std::string_view key [[maybe_unused]]) 111a6acbb31SJames Feist { 112a6acbb31SJames Feist if constexpr (std::is_floating_point_v<ToType>) 113a6acbb31SJames Feist { 114ee344e0fSEd Tanous if (std::isnan(from)) 115a6acbb31SJames Feist { 11662598e31SEd Tanous BMCWEB_LOG_DEBUG("Value for key {} was NAN", key); 117a6acbb31SJames Feist return false; 118a6acbb31SJames Feist } 119a6acbb31SJames Feist } 120c09966bdSEd Tanous if constexpr (std::numeric_limits<ToType>::max() < 121c09966bdSEd Tanous std::numeric_limits<FromType>::max()) 122c09966bdSEd Tanous { 123c09966bdSEd Tanous if (from > std::numeric_limits<ToType>::max()) 124c09966bdSEd Tanous { 125c09966bdSEd Tanous BMCWEB_LOG_DEBUG("Value for key {} was greater than max {}", key, 126c09966bdSEd Tanous std::numeric_limits<FromType>::max()); 127c09966bdSEd Tanous return false; 128c09966bdSEd Tanous } 129c09966bdSEd Tanous } 130c09966bdSEd Tanous if constexpr (std::numeric_limits<ToType>::lowest() > 131c09966bdSEd Tanous std::numeric_limits<FromType>::lowest()) 132c09966bdSEd Tanous { 133c09966bdSEd Tanous if (from < std::numeric_limits<ToType>::lowest()) 134c09966bdSEd Tanous { 135c09966bdSEd Tanous BMCWEB_LOG_DEBUG("Value for key {} was less than min {}", key, 136c09966bdSEd Tanous std::numeric_limits<FromType>::lowest()); 137c09966bdSEd Tanous return false; 138c09966bdSEd Tanous } 139c09966bdSEd Tanous } 140a6acbb31SJames Feist 141a6acbb31SJames Feist return true; 142a6acbb31SJames Feist } 143a6acbb31SJames Feist 144771cfa0fSJason M. Bills template <typename Type> 145471a5eb8SAppaRao Puli UnpackErrorCode unpackValueWithErrorCode(nlohmann::json& jsonValue, 1468099c517SEd Tanous std::string_view key, Type& value); 1478099c517SEd Tanous 1488099c517SEd Tanous template <std::size_t Index = 0, typename... Args> 1498099c517SEd Tanous UnpackErrorCode unpackValueVariant(nlohmann::json& j, std::string_view key, 1508099c517SEd Tanous std::variant<Args...>& v) 1518099c517SEd Tanous { 1528099c517SEd Tanous if constexpr (Index < std::variant_size_v<std::variant<Args...>>) 1538099c517SEd Tanous { 154*ed4de7a8SEd Tanous std::variant_alternative_t<Index, std::variant<Args...>> type{}; 1558099c517SEd Tanous UnpackErrorCode unpack = unpackValueWithErrorCode(j, key, type); 1568099c517SEd Tanous if (unpack == UnpackErrorCode::success) 1578099c517SEd Tanous { 1588099c517SEd Tanous v = std::move(type); 1598099c517SEd Tanous return unpack; 1608099c517SEd Tanous } 1618099c517SEd Tanous 1628099c517SEd Tanous return unpackValueVariant<Index + 1, Args...>(j, key, v); 1638099c517SEd Tanous } 1648099c517SEd Tanous return UnpackErrorCode::invalidType; 1658099c517SEd Tanous } 1668099c517SEd Tanous 1678099c517SEd Tanous template <typename Type> 1688099c517SEd Tanous UnpackErrorCode unpackValueWithErrorCode(nlohmann::json& jsonValue, 169ea2e6eecSWilly Tu std::string_view key, Type& value) 170771cfa0fSJason M. Bills { 171471a5eb8SAppaRao Puli UnpackErrorCode ret = UnpackErrorCode::success; 17241352c24SSantosh Puranik 173a6acbb31SJames Feist if constexpr (std::is_floating_point_v<Type>) 174771cfa0fSJason M. Bills { 175a6acbb31SJames Feist double helper = 0; 176a6acbb31SJames Feist double* jsonPtr = jsonValue.get_ptr<double*>(); 177771cfa0fSJason M. Bills 178771cfa0fSJason M. Bills if (jsonPtr == nullptr) 179771cfa0fSJason M. Bills { 180a6acbb31SJames Feist int64_t* intPtr = jsonValue.get_ptr<int64_t*>(); 181a6acbb31SJames Feist if (intPtr != nullptr) 182771cfa0fSJason M. Bills { 183a6acbb31SJames Feist helper = static_cast<double>(*intPtr); 184a6acbb31SJames Feist jsonPtr = &helper; 185771cfa0fSJason M. Bills } 186a6acbb31SJames Feist } 1875eb2bef2SAppaRao Puli if (jsonPtr == nullptr) 1885eb2bef2SAppaRao Puli { 189471a5eb8SAppaRao Puli return UnpackErrorCode::invalidType; 1905eb2bef2SAppaRao Puli } 191cb13a392SEd Tanous if (!checkRange<Type>(*jsonPtr, key)) 192771cfa0fSJason M. Bills { 193471a5eb8SAppaRao Puli return UnpackErrorCode::outOfRange; 194771cfa0fSJason M. Bills } 195771cfa0fSJason M. Bills value = static_cast<Type>(*jsonPtr); 196771cfa0fSJason M. Bills } 197a6acbb31SJames Feist 198a6acbb31SJames Feist else if constexpr (std::is_signed_v<Type>) 199a6acbb31SJames Feist { 200a6acbb31SJames Feist int64_t* jsonPtr = jsonValue.get_ptr<int64_t*>(); 201271584abSEd Tanous if (jsonPtr == nullptr) 202271584abSEd Tanous { 203471a5eb8SAppaRao Puli return UnpackErrorCode::invalidType; 204271584abSEd Tanous } 205cb13a392SEd Tanous if (!checkRange<Type>(*jsonPtr, key)) 206a6acbb31SJames Feist { 207471a5eb8SAppaRao Puli return UnpackErrorCode::outOfRange; 208a6acbb31SJames Feist } 209a6acbb31SJames Feist value = static_cast<Type>(*jsonPtr); 210a6acbb31SJames Feist } 211a6acbb31SJames Feist 2128102ddbaSAppaRao Puli else if constexpr ((std::is_unsigned_v<Type>)&&( 2138102ddbaSAppaRao Puli !std::is_same_v<bool, Type>)) 214a6acbb31SJames Feist { 215a6acbb31SJames Feist uint64_t* jsonPtr = jsonValue.get_ptr<uint64_t*>(); 216271584abSEd Tanous if (jsonPtr == nullptr) 217271584abSEd Tanous { 218471a5eb8SAppaRao Puli return UnpackErrorCode::invalidType; 219271584abSEd Tanous } 220cb13a392SEd Tanous if (!checkRange<Type>(*jsonPtr, key)) 221a6acbb31SJames Feist { 222471a5eb8SAppaRao Puli return UnpackErrorCode::outOfRange; 223a6acbb31SJames Feist } 224a6acbb31SJames Feist value = static_cast<Type>(*jsonPtr); 225a6acbb31SJames Feist } 226a6acbb31SJames Feist 2270627a2c7SEd Tanous else if constexpr (std::is_same_v<nlohmann::json, Type>) 2280627a2c7SEd Tanous { 2290627a2c7SEd Tanous value = std::move(jsonValue); 2300627a2c7SEd Tanous } 2318099c517SEd Tanous else if constexpr (std::is_same_v<std::nullptr_t, Type>) 2328099c517SEd Tanous { 2338099c517SEd Tanous if (!jsonValue.is_null()) 2348099c517SEd Tanous { 2358099c517SEd Tanous return UnpackErrorCode::invalidType; 2368099c517SEd Tanous } 2378099c517SEd Tanous } 238*ed4de7a8SEd Tanous else if constexpr (IsVector<Type>::value) 239*ed4de7a8SEd Tanous { 240*ed4de7a8SEd Tanous nlohmann::json::object_t* obj = 241*ed4de7a8SEd Tanous jsonValue.get_ptr<nlohmann::json::object_t*>(); 242*ed4de7a8SEd Tanous if (obj == nullptr) 243*ed4de7a8SEd Tanous { 244*ed4de7a8SEd Tanous return UnpackErrorCode::invalidType; 245*ed4de7a8SEd Tanous } 246*ed4de7a8SEd Tanous 247*ed4de7a8SEd Tanous for (const auto& val : *obj) 248*ed4de7a8SEd Tanous { 249*ed4de7a8SEd Tanous value.emplace_back(); 250*ed4de7a8SEd Tanous ret = unpackValueWithErrorCode<typename Type::value_type>( 251*ed4de7a8SEd Tanous val, key, value.back()) && 252*ed4de7a8SEd Tanous ret; 253*ed4de7a8SEd Tanous } 254*ed4de7a8SEd Tanous } 255471a5eb8SAppaRao Puli else 256471a5eb8SAppaRao Puli { 257471a5eb8SAppaRao Puli using JsonType = std::add_const_t<std::add_pointer_t<Type>>; 258471a5eb8SAppaRao Puli JsonType jsonPtr = jsonValue.get_ptr<JsonType>(); 259471a5eb8SAppaRao Puli if (jsonPtr == nullptr) 260471a5eb8SAppaRao Puli { 26162598e31SEd Tanous BMCWEB_LOG_DEBUG("Value for key {} was incorrect type: {}", key, 26262598e31SEd Tanous jsonValue.type_name()); 263471a5eb8SAppaRao Puli return UnpackErrorCode::invalidType; 264471a5eb8SAppaRao Puli } 265471a5eb8SAppaRao Puli value = std::move(*jsonPtr); 266471a5eb8SAppaRao Puli } 267471a5eb8SAppaRao Puli return ret; 268471a5eb8SAppaRao Puli } 269471a5eb8SAppaRao Puli 270471a5eb8SAppaRao Puli template <typename Type> 271ea2e6eecSWilly Tu bool unpackValue(nlohmann::json& jsonValue, std::string_view key, 272471a5eb8SAppaRao Puli crow::Response& res, Type& value) 273471a5eb8SAppaRao Puli { 274471a5eb8SAppaRao Puli bool ret = true; 275471a5eb8SAppaRao Puli 2762c70f800SEd Tanous if constexpr (IsOptional<Type>::value) 277471a5eb8SAppaRao Puli { 278471a5eb8SAppaRao Puli value.emplace(); 279471a5eb8SAppaRao Puli ret = unpackValue<typename Type::value_type>(jsonValue, key, res, 280471a5eb8SAppaRao Puli *value) && 281471a5eb8SAppaRao Puli ret; 282471a5eb8SAppaRao Puli } 2832c70f800SEd Tanous else if constexpr (IsStdArray<Type>::value) 284318226c2SJames Feist { 285318226c2SJames Feist if (!jsonValue.is_array()) 286318226c2SJames Feist { 2872e8c4bdaSEd Tanous messages::propertyValueTypeError(res, res.jsonValue, key); 28841352c24SSantosh Puranik return false; 289318226c2SJames Feist } 290318226c2SJames Feist if (jsonValue.size() != value.size()) 291318226c2SJames Feist { 2922e8c4bdaSEd Tanous messages::propertyValueTypeError(res, res.jsonValue, key); 29341352c24SSantosh Puranik return false; 294318226c2SJames Feist } 295318226c2SJames Feist size_t index = 0; 296318226c2SJames Feist for (const auto& val : jsonValue.items()) 297318226c2SJames Feist { 29841352c24SSantosh Puranik ret = unpackValue<typename Type::value_type>(val.value(), key, res, 29941352c24SSantosh Puranik value[index++]) && 30041352c24SSantosh Puranik ret; 301318226c2SJames Feist } 302318226c2SJames Feist } 3032c70f800SEd Tanous else if constexpr (IsVector<Type>::value) 304b1556427SEd Tanous { 305b1556427SEd Tanous if (!jsonValue.is_array()) 306b1556427SEd Tanous { 3072e8c4bdaSEd Tanous messages::propertyValueTypeError(res, res.jsonValue, key); 30841352c24SSantosh Puranik return false; 309b1556427SEd Tanous } 310b1556427SEd Tanous 311b1556427SEd Tanous for (const auto& val : jsonValue.items()) 312b1556427SEd Tanous { 313b1556427SEd Tanous value.emplace_back(); 31441352c24SSantosh Puranik ret = unpackValue<typename Type::value_type>(val.value(), key, res, 31541352c24SSantosh Puranik value.back()) && 31641352c24SSantosh Puranik ret; 317b1556427SEd Tanous } 318b1556427SEd Tanous } 3198099c517SEd Tanous else if constexpr (IsVariant<Type>::value) 3208099c517SEd Tanous { 3218099c517SEd Tanous UnpackErrorCode ec = unpackValueVariant(jsonValue, key, value); 3228099c517SEd Tanous if (ec != UnpackErrorCode::success) 3238099c517SEd Tanous { 3248099c517SEd Tanous if (ec == UnpackErrorCode::invalidType) 3258099c517SEd Tanous { 3268099c517SEd Tanous messages::propertyValueTypeError(res, jsonValue, key); 3278099c517SEd Tanous } 3288099c517SEd Tanous else if (ec == UnpackErrorCode::outOfRange) 3298099c517SEd Tanous { 3308099c517SEd Tanous messages::propertyValueNotInList(res, jsonValue, key); 3318099c517SEd Tanous } 3328099c517SEd Tanous return false; 3338099c517SEd Tanous } 3348099c517SEd Tanous } 335771cfa0fSJason M. Bills else 336771cfa0fSJason M. Bills { 337471a5eb8SAppaRao Puli UnpackErrorCode ec = unpackValueWithErrorCode(jsonValue, key, value); 338471a5eb8SAppaRao Puli if (ec != UnpackErrorCode::success) 339771cfa0fSJason M. Bills { 340471a5eb8SAppaRao Puli if (ec == UnpackErrorCode::invalidType) 341471a5eb8SAppaRao Puli { 3422e8c4bdaSEd Tanous messages::propertyValueTypeError(res, jsonValue, key); 343471a5eb8SAppaRao Puli } 344471a5eb8SAppaRao Puli else if (ec == UnpackErrorCode::outOfRange) 345471a5eb8SAppaRao Puli { 346e2616cc5SEd Tanous messages::propertyValueNotInList(res, jsonValue, key); 347471a5eb8SAppaRao Puli } 34841352c24SSantosh Puranik return false; 349771cfa0fSJason M. Bills } 350771cfa0fSJason M. Bills } 351471a5eb8SAppaRao Puli 352471a5eb8SAppaRao Puli return ret; 353471a5eb8SAppaRao Puli } 354471a5eb8SAppaRao Puli 355471a5eb8SAppaRao Puli template <typename Type> 356ea2e6eecSWilly Tu bool unpackValue(nlohmann::json& jsonValue, std::string_view key, Type& value) 357471a5eb8SAppaRao Puli { 358471a5eb8SAppaRao Puli bool ret = true; 3592c70f800SEd Tanous if constexpr (IsOptional<Type>::value) 360471a5eb8SAppaRao Puli { 361471a5eb8SAppaRao Puli value.emplace(); 362471a5eb8SAppaRao Puli ret = unpackValue<typename Type::value_type>(jsonValue, key, *value) && 363471a5eb8SAppaRao Puli ret; 364471a5eb8SAppaRao Puli } 3652c70f800SEd Tanous else if constexpr (IsStdArray<Type>::value) 366471a5eb8SAppaRao Puli { 367471a5eb8SAppaRao Puli if (!jsonValue.is_array()) 368471a5eb8SAppaRao Puli { 369471a5eb8SAppaRao Puli return false; 370471a5eb8SAppaRao Puli } 371471a5eb8SAppaRao Puli if (jsonValue.size() != value.size()) 372471a5eb8SAppaRao Puli { 373471a5eb8SAppaRao Puli return false; 374471a5eb8SAppaRao Puli } 375471a5eb8SAppaRao Puli size_t index = 0; 376471a5eb8SAppaRao Puli for (const auto& val : jsonValue.items()) 377471a5eb8SAppaRao Puli { 378471a5eb8SAppaRao Puli ret = unpackValue<typename Type::value_type>(val.value(), key, 379471a5eb8SAppaRao Puli value[index++]) && 380471a5eb8SAppaRao Puli ret; 381471a5eb8SAppaRao Puli } 382471a5eb8SAppaRao Puli } 3832c70f800SEd Tanous else if constexpr (IsVector<Type>::value) 384471a5eb8SAppaRao Puli { 385471a5eb8SAppaRao Puli if (!jsonValue.is_array()) 386471a5eb8SAppaRao Puli { 387471a5eb8SAppaRao Puli return false; 388471a5eb8SAppaRao Puli } 389471a5eb8SAppaRao Puli 390471a5eb8SAppaRao Puli for (const auto& val : jsonValue.items()) 391471a5eb8SAppaRao Puli { 392471a5eb8SAppaRao Puli value.emplace_back(); 393471a5eb8SAppaRao Puli ret = unpackValue<typename Type::value_type>(val.value(), key, 394471a5eb8SAppaRao Puli value.back()) && 395471a5eb8SAppaRao Puli ret; 396471a5eb8SAppaRao Puli } 397471a5eb8SAppaRao Puli } 398471a5eb8SAppaRao Puli else 399471a5eb8SAppaRao Puli { 400471a5eb8SAppaRao Puli UnpackErrorCode ec = unpackValueWithErrorCode(jsonValue, key, value); 401471a5eb8SAppaRao Puli if (ec != UnpackErrorCode::success) 402471a5eb8SAppaRao Puli { 403471a5eb8SAppaRao Puli return false; 404471a5eb8SAppaRao Puli } 405471a5eb8SAppaRao Puli } 406471a5eb8SAppaRao Puli 40741352c24SSantosh Puranik return ret; 408771cfa0fSJason M. Bills } 4099712f8acSEd Tanous } // namespace details 4109712f8acSEd Tanous 411ea2e6eecSWilly Tu // clang-format off 412ea2e6eecSWilly Tu using UnpackVariant = std::variant< 413ea2e6eecSWilly Tu uint8_t*, 414ea2e6eecSWilly Tu uint16_t*, 415ea2e6eecSWilly Tu int16_t*, 416ea2e6eecSWilly Tu uint32_t*, 417ea2e6eecSWilly Tu int32_t*, 418ea2e6eecSWilly Tu uint64_t*, 419ea2e6eecSWilly Tu int64_t*, 420ea2e6eecSWilly Tu bool*, 421ea2e6eecSWilly Tu double*, 422ea2e6eecSWilly Tu std::string*, 423b6164cbeSEd Tanous nlohmann::json::object_t*, 4248099c517SEd Tanous std::variant<std::string, std::nullptr_t>*, 4258099c517SEd Tanous std::variant<uint8_t, std::nullptr_t>*, 4268099c517SEd Tanous std::variant<int16_t, std::nullptr_t>*, 4278099c517SEd Tanous std::variant<uint16_t, std::nullptr_t>*, 4288099c517SEd Tanous std::variant<int32_t, std::nullptr_t>*, 4298099c517SEd Tanous std::variant<uint32_t, std::nullptr_t>*, 4308099c517SEd Tanous std::variant<int64_t, std::nullptr_t>*, 4318099c517SEd Tanous std::variant<uint64_t, std::nullptr_t>*, 4328099c517SEd Tanous std::variant<double, std::nullptr_t>*, 4338099c517SEd Tanous std::variant<bool, std::nullptr_t>*, 434ea2e6eecSWilly Tu std::vector<uint8_t>*, 435ea2e6eecSWilly Tu std::vector<uint16_t>*, 436ea2e6eecSWilly Tu std::vector<int16_t>*, 437ea2e6eecSWilly Tu std::vector<uint32_t>*, 438ea2e6eecSWilly Tu std::vector<int32_t>*, 439ea2e6eecSWilly Tu std::vector<uint64_t>*, 440ea2e6eecSWilly Tu std::vector<int64_t>*, 441ea2e6eecSWilly Tu //std::vector<bool>*, 442ea2e6eecSWilly Tu std::vector<double>*, 443ea2e6eecSWilly Tu std::vector<std::string>*, 444b6164cbeSEd Tanous std::vector<nlohmann::json::object_t>*, 445ea2e6eecSWilly Tu std::optional<uint8_t>*, 446ea2e6eecSWilly Tu std::optional<uint16_t>*, 447ea2e6eecSWilly Tu std::optional<int16_t>*, 448ea2e6eecSWilly Tu std::optional<uint32_t>*, 449ea2e6eecSWilly Tu std::optional<int32_t>*, 450ea2e6eecSWilly Tu std::optional<uint64_t>*, 451ea2e6eecSWilly Tu std::optional<int64_t>*, 452ea2e6eecSWilly Tu std::optional<bool>*, 453ea2e6eecSWilly Tu std::optional<double>*, 454ea2e6eecSWilly Tu std::optional<std::string>*, 455b6164cbeSEd Tanous std::optional<nlohmann::json::object_t>*, 456ea2e6eecSWilly Tu std::optional<std::vector<uint8_t>>*, 457ea2e6eecSWilly Tu std::optional<std::vector<uint16_t>>*, 458ea2e6eecSWilly Tu std::optional<std::vector<int16_t>>*, 459ea2e6eecSWilly Tu std::optional<std::vector<uint32_t>>*, 460ea2e6eecSWilly Tu std::optional<std::vector<int32_t>>*, 461ea2e6eecSWilly Tu std::optional<std::vector<uint64_t>>*, 462ea2e6eecSWilly Tu std::optional<std::vector<int64_t>>*, 463ea2e6eecSWilly Tu //std::optional<std::vector<bool>>*, 464ea2e6eecSWilly Tu std::optional<std::vector<double>>*, 465ea2e6eecSWilly Tu std::optional<std::vector<std::string>>*, 4668099c517SEd Tanous std::optional<std::vector<nlohmann::json::object_t>>*, 4678099c517SEd Tanous std::optional<std::variant<std::string, std::nullptr_t>>*, 4688099c517SEd Tanous std::optional<std::variant<uint8_t, std::nullptr_t>>*, 4698099c517SEd Tanous std::optional<std::variant<int16_t, std::nullptr_t>>*, 4708099c517SEd Tanous std::optional<std::variant<uint16_t, std::nullptr_t>>*, 4718099c517SEd Tanous std::optional<std::variant<int32_t, std::nullptr_t>>*, 4728099c517SEd Tanous std::optional<std::variant<uint32_t, std::nullptr_t>>*, 4738099c517SEd Tanous std::optional<std::variant<int64_t, std::nullptr_t>>*, 4748099c517SEd Tanous std::optional<std::variant<uint64_t, std::nullptr_t>>*, 4758099c517SEd Tanous std::optional<std::variant<double, std::nullptr_t>>*, 4768099c517SEd Tanous std::optional<std::variant<bool, std::nullptr_t>>*, 4778099c517SEd Tanous std::optional<std::vector<std::variant<nlohmann::json::object_t, std::nullptr_t>>>*, 478*ed4de7a8SEd Tanous std::optional<std::vector<std::variant<std::string, nlohmann::json::object_t, std::nullptr_t>>>*, 479*ed4de7a8SEd Tanous 480*ed4de7a8SEd Tanous // Note, these types are kept for historical completeness, but should not be used, 481*ed4de7a8SEd Tanous // As they do not provide object type safety. Instead, rely on nlohmann::json::object_t 482*ed4de7a8SEd Tanous // Will be removed Q2 2025 483*ed4de7a8SEd Tanous nlohmann::json*, 484*ed4de7a8SEd Tanous std::optional<std::vector<nlohmann::json>>*, 485*ed4de7a8SEd Tanous std::vector<nlohmann::json>*, 486*ed4de7a8SEd Tanous std::optional<nlohmann::json>* 487ea2e6eecSWilly Tu >; 488ea2e6eecSWilly Tu // clang-format on 489ea2e6eecSWilly Tu 490ea2e6eecSWilly Tu struct PerUnpack 491ea2e6eecSWilly Tu { 492ea2e6eecSWilly Tu std::string_view key; 493ea2e6eecSWilly Tu UnpackVariant value; 494ea2e6eecSWilly Tu bool complete = false; 495ea2e6eecSWilly Tu }; 496ea2e6eecSWilly Tu 497ea2e6eecSWilly Tu inline bool readJsonHelper(nlohmann::json& jsonRequest, crow::Response& res, 498b6164cbeSEd Tanous std::span<PerUnpack> toUnpack); 499b6164cbeSEd Tanous 500b6164cbeSEd Tanous inline bool readJsonHelperObject(nlohmann::json::object_t& obj, 501b6164cbeSEd Tanous crow::Response& res, 502ea2e6eecSWilly Tu std::span<PerUnpack> toUnpack) 5039712f8acSEd Tanous { 50441352c24SSantosh Puranik bool result = true; 505b6164cbeSEd Tanous for (auto& item : obj) 5069712f8acSEd Tanous { 507ea2e6eecSWilly Tu size_t unpackIndex = 0; 508ea2e6eecSWilly Tu for (; unpackIndex < toUnpack.size(); unpackIndex++) 509ea2e6eecSWilly Tu { 510ea2e6eecSWilly Tu PerUnpack& unpackSpec = toUnpack[unpackIndex]; 511ea2e6eecSWilly Tu std::string_view key = unpackSpec.key; 512ea2e6eecSWilly Tu size_t keysplitIndex = key.find('/'); 513ea2e6eecSWilly Tu std::string_view leftover; 514ea2e6eecSWilly Tu if (keysplitIndex != std::string_view::npos) 515ea2e6eecSWilly Tu { 516ea2e6eecSWilly Tu leftover = key.substr(keysplitIndex + 1); 517ea2e6eecSWilly Tu key = key.substr(0, keysplitIndex); 518ea2e6eecSWilly Tu } 519ea2e6eecSWilly Tu 520d91415c4SEd Tanous if (key != item.first || unpackSpec.complete) 521ea2e6eecSWilly Tu { 522ea2e6eecSWilly Tu continue; 523ea2e6eecSWilly Tu } 524ea2e6eecSWilly Tu 525ea2e6eecSWilly Tu // Sublevel key 526ea2e6eecSWilly Tu if (!leftover.empty()) 527ea2e6eecSWilly Tu { 528ea2e6eecSWilly Tu // Include the slash in the key so we can compare later 529ea2e6eecSWilly Tu key = unpackSpec.key.substr(0, keysplitIndex + 1); 530ea2e6eecSWilly Tu nlohmann::json j; 531d91415c4SEd Tanous result = details::unpackValue<nlohmann::json>(item.second, key, 532ea2e6eecSWilly Tu res, j) && 53341352c24SSantosh Puranik result; 53455f79e6fSEd Tanous if (!result) 535ea2e6eecSWilly Tu { 536ea2e6eecSWilly Tu return result; 5379712f8acSEd Tanous } 5389712f8acSEd Tanous 539ea2e6eecSWilly Tu std::vector<PerUnpack> nextLevel; 540ea2e6eecSWilly Tu for (PerUnpack& p : toUnpack) 541ea2e6eecSWilly Tu { 542ea2e6eecSWilly Tu if (!p.key.starts_with(key)) 543ea2e6eecSWilly Tu { 544ea2e6eecSWilly Tu continue; 545ea2e6eecSWilly Tu } 546ea2e6eecSWilly Tu std::string_view thisLeftover = p.key.substr(key.size()); 547ea2e6eecSWilly Tu nextLevel.push_back({thisLeftover, p.value, false}); 548ea2e6eecSWilly Tu p.complete = true; 5499712f8acSEd Tanous } 55077dd8813SKowalski, Kamil 551ea2e6eecSWilly Tu result = readJsonHelper(j, res, nextLevel) && result; 552ea2e6eecSWilly Tu break; 553ea2e6eecSWilly Tu } 554ea2e6eecSWilly Tu 555002d39b4SEd Tanous result = std::visit( 556ea2e6eecSWilly Tu [&item, &unpackSpec, &res](auto&& val) { 557ea2e6eecSWilly Tu using ContainedT = 558ea2e6eecSWilly Tu std::remove_pointer_t<std::decay_t<decltype(val)>>; 559ea2e6eecSWilly Tu return details::unpackValue<ContainedT>( 560d91415c4SEd Tanous item.second, unpackSpec.key, res, *val); 561ea2e6eecSWilly Tu }, 562ea2e6eecSWilly Tu unpackSpec.value) && 563ea2e6eecSWilly Tu result; 564ea2e6eecSWilly Tu 565ea2e6eecSWilly Tu unpackSpec.complete = true; 566ea2e6eecSWilly Tu break; 567ea2e6eecSWilly Tu } 568ea2e6eecSWilly Tu 569ea2e6eecSWilly Tu if (unpackIndex == toUnpack.size()) 570ea2e6eecSWilly Tu { 571d91415c4SEd Tanous messages::propertyUnknown(res, item.first); 572ea2e6eecSWilly Tu result = false; 573ea2e6eecSWilly Tu } 574ea2e6eecSWilly Tu } 575ea2e6eecSWilly Tu 576ea2e6eecSWilly Tu for (PerUnpack& perUnpack : toUnpack) 577ea2e6eecSWilly Tu { 57855f79e6fSEd Tanous if (!perUnpack.complete) 579ea2e6eecSWilly Tu { 580ea2e6eecSWilly Tu bool isOptional = std::visit( 581ea2e6eecSWilly Tu [](auto&& val) { 582ea2e6eecSWilly Tu using ContainedType = 583ea2e6eecSWilly Tu std::remove_pointer_t<std::decay_t<decltype(val)>>; 584ea2e6eecSWilly Tu return details::IsOptional<ContainedType>::value; 585ea2e6eecSWilly Tu }, 586ea2e6eecSWilly Tu perUnpack.value); 587ea2e6eecSWilly Tu if (isOptional) 588ea2e6eecSWilly Tu { 589ea2e6eecSWilly Tu continue; 590ea2e6eecSWilly Tu } 591ea2e6eecSWilly Tu messages::propertyMissing(res, perUnpack.key); 592ea2e6eecSWilly Tu result = false; 593ea2e6eecSWilly Tu } 594ea2e6eecSWilly Tu } 595ea2e6eecSWilly Tu return result; 596ea2e6eecSWilly Tu } 597ea2e6eecSWilly Tu 598b6164cbeSEd Tanous inline bool readJsonHelper(nlohmann::json& jsonRequest, crow::Response& res, 599b6164cbeSEd Tanous std::span<PerUnpack> toUnpack) 600b6164cbeSEd Tanous { 601b6164cbeSEd Tanous nlohmann::json::object_t* obj = 602b6164cbeSEd Tanous jsonRequest.get_ptr<nlohmann::json::object_t*>(); 603b6164cbeSEd Tanous if (obj == nullptr) 604b6164cbeSEd Tanous { 605b6164cbeSEd Tanous BMCWEB_LOG_DEBUG("Json value is not an object"); 606b6164cbeSEd Tanous messages::unrecognizedRequestBody(res); 607b6164cbeSEd Tanous return false; 608b6164cbeSEd Tanous } 609b6164cbeSEd Tanous return readJsonHelperObject(*obj, res, toUnpack); 610b6164cbeSEd Tanous } 611b6164cbeSEd Tanous 61289492a15SPatrick Williams inline void packVariant(std::span<PerUnpack> /*toPack*/) {} 613ea2e6eecSWilly Tu 614ea2e6eecSWilly Tu template <typename FirstType, typename... UnpackTypes> 615ea2e6eecSWilly Tu void packVariant(std::span<PerUnpack> toPack, std::string_view key, 616ea2e6eecSWilly Tu FirstType& first, UnpackTypes&&... in) 617ea2e6eecSWilly Tu { 618ea2e6eecSWilly Tu if (toPack.empty()) 619ea2e6eecSWilly Tu { 620ea2e6eecSWilly Tu return; 621ea2e6eecSWilly Tu } 622ea2e6eecSWilly Tu toPack[0].key = key; 623ea2e6eecSWilly Tu toPack[0].value = &first; 624ea2e6eecSWilly Tu // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-array-to-pointer-decay) 625ea2e6eecSWilly Tu packVariant(toPack.subspan(1), std::forward<UnpackTypes&&>(in)...); 626ea2e6eecSWilly Tu } 627ea2e6eecSWilly Tu 628ea2e6eecSWilly Tu template <typename FirstType, typename... UnpackTypes> 629b6164cbeSEd Tanous bool readJsonObject(nlohmann::json::object_t& jsonRequest, crow::Response& res, 630b6164cbeSEd Tanous std::string_view key, FirstType&& first, 631b6164cbeSEd Tanous UnpackTypes&&... in) 632ea2e6eecSWilly Tu { 633ea2e6eecSWilly Tu const std::size_t n = sizeof...(UnpackTypes) + 2; 634ea2e6eecSWilly Tu std::array<PerUnpack, n / 2> toUnpack2; 635ea2e6eecSWilly Tu packVariant(toUnpack2, key, first, std::forward<UnpackTypes&&>(in)...); 636b6164cbeSEd Tanous return readJsonHelperObject(jsonRequest, res, toUnpack2); 637ea2e6eecSWilly Tu } 638ea2e6eecSWilly Tu 639b6164cbeSEd Tanous template <typename FirstType, typename... UnpackTypes> 640b6164cbeSEd Tanous bool readJson(nlohmann::json& jsonRequest, crow::Response& res, 641b6164cbeSEd Tanous std::string_view key, FirstType&& first, UnpackTypes&&... in) 642b6164cbeSEd Tanous { 643b6164cbeSEd Tanous nlohmann::json::object_t* obj = 644b6164cbeSEd Tanous jsonRequest.get_ptr<nlohmann::json::object_t*>(); 645b6164cbeSEd Tanous if (obj == nullptr) 646b6164cbeSEd Tanous { 647b6164cbeSEd Tanous BMCWEB_LOG_DEBUG("Json value is not an object"); 648b6164cbeSEd Tanous messages::unrecognizedRequestBody(res); 649b6164cbeSEd Tanous return false; 650b6164cbeSEd Tanous } 6515be2b14aSEd Tanous return readJsonObject(*obj, res, key, std::forward<FirstType>(first), 6525be2b14aSEd Tanous std::forward<UnpackTypes&&>(in)...); 653b6164cbeSEd Tanous } 654b6164cbeSEd Tanous 655b6164cbeSEd Tanous inline std::optional<nlohmann::json::object_t> 656ea2e6eecSWilly Tu readJsonPatchHelper(const crow::Request& req, crow::Response& res) 6570627a2c7SEd Tanous { 6580627a2c7SEd Tanous nlohmann::json jsonRequest; 6590627a2c7SEd Tanous if (!json_util::processJsonFromRequest(res, req, jsonRequest)) 6600627a2c7SEd Tanous { 66162598e31SEd Tanous BMCWEB_LOG_DEBUG("Json value not readable"); 662ea2e6eecSWilly Tu return std::nullopt; 6630627a2c7SEd Tanous } 664357bb8f8SEd Tanous nlohmann::json::object_t* object = 665357bb8f8SEd Tanous jsonRequest.get_ptr<nlohmann::json::object_t*>(); 666357bb8f8SEd Tanous if (object == nullptr || object->empty()) 66715ed6780SWilly Tu { 66862598e31SEd Tanous BMCWEB_LOG_DEBUG("Json value is empty"); 66915ed6780SWilly Tu messages::emptyJSON(res); 670ea2e6eecSWilly Tu return std::nullopt; 671ea2e6eecSWilly Tu } 672357bb8f8SEd Tanous std::erase_if(*object, 673357bb8f8SEd Tanous [](const std::pair<std::string, nlohmann::json>& item) { 674357bb8f8SEd Tanous return item.first.starts_with("@odata."); 675357bb8f8SEd Tanous }); 676357bb8f8SEd Tanous if (object->empty()) 677357bb8f8SEd Tanous { 678357bb8f8SEd Tanous // If the update request only contains OData annotations, the service 679357bb8f8SEd Tanous // should return the HTTP 400 Bad Request status code with the 680357bb8f8SEd Tanous // NoOperation message from the Base Message Registry, ... 681357bb8f8SEd Tanous messages::noOperation(res); 682357bb8f8SEd Tanous return std::nullopt; 683357bb8f8SEd Tanous } 684357bb8f8SEd Tanous 685b6164cbeSEd Tanous return {std::move(*object)}; 686ea2e6eecSWilly Tu } 687ea2e6eecSWilly Tu 688ea2e6eecSWilly Tu template <typename... UnpackTypes> 689ea2e6eecSWilly Tu bool readJsonPatch(const crow::Request& req, crow::Response& res, 690ea2e6eecSWilly Tu std::string_view key, UnpackTypes&&... in) 691ea2e6eecSWilly Tu { 69276b038f2SEd Tanous std::optional<nlohmann::json::object_t> jsonRequest = 69376b038f2SEd Tanous readJsonPatchHelper(req, res); 694e01d0c36SEd Tanous if (!jsonRequest) 695ea2e6eecSWilly Tu { 69615ed6780SWilly Tu return false; 69715ed6780SWilly Tu } 69876b038f2SEd Tanous if (jsonRequest->empty()) 699b6164cbeSEd Tanous { 700b6164cbeSEd Tanous messages::emptyJSON(res); 701b6164cbeSEd Tanous return false; 702b6164cbeSEd Tanous } 70315ed6780SWilly Tu 70476b038f2SEd Tanous return readJsonObject(*jsonRequest, res, key, 705b6164cbeSEd Tanous std::forward<UnpackTypes&&>(in)...); 70615ed6780SWilly Tu } 70715ed6780SWilly Tu 70815ed6780SWilly Tu template <typename... UnpackTypes> 70915ed6780SWilly Tu bool readJsonAction(const crow::Request& req, crow::Response& res, 710ea2e6eecSWilly Tu const char* key, UnpackTypes&&... in) 71115ed6780SWilly Tu { 71215ed6780SWilly Tu nlohmann::json jsonRequest; 71315ed6780SWilly Tu if (!json_util::processJsonFromRequest(res, req, jsonRequest)) 71415ed6780SWilly Tu { 71562598e31SEd Tanous BMCWEB_LOG_DEBUG("Json value not readable"); 71615ed6780SWilly Tu return false; 71715ed6780SWilly Tu } 718b6164cbeSEd Tanous nlohmann::json::object_t* object = 719b6164cbeSEd Tanous jsonRequest.get_ptr<nlohmann::json::object_t*>(); 720b6164cbeSEd Tanous if (object == nullptr) 721b6164cbeSEd Tanous { 722b6164cbeSEd Tanous BMCWEB_LOG_DEBUG("Json value is empty"); 723b6164cbeSEd Tanous messages::emptyJSON(res); 724b6164cbeSEd Tanous return false; 725b6164cbeSEd Tanous } 726b6164cbeSEd Tanous return readJsonObject(*object, res, key, 727b6164cbeSEd Tanous std::forward<UnpackTypes&&>(in)...); 7280627a2c7SEd Tanous } 729185444b1SNan Zhou 730185444b1SNan Zhou // Determines if two json objects are less, based on the presence of the 731185444b1SNan Zhou // @odata.id key 732185444b1SNan Zhou inline int odataObjectCmp(const nlohmann::json& a, const nlohmann::json& b) 733185444b1SNan Zhou { 734185444b1SNan Zhou using object_t = nlohmann::json::object_t; 735185444b1SNan Zhou const object_t* aObj = a.get_ptr<const object_t*>(); 736185444b1SNan Zhou const object_t* bObj = b.get_ptr<const object_t*>(); 737185444b1SNan Zhou 738185444b1SNan Zhou if (aObj == nullptr) 739185444b1SNan Zhou { 740185444b1SNan Zhou if (bObj == nullptr) 741185444b1SNan Zhou { 742185444b1SNan Zhou return 0; 743185444b1SNan Zhou } 744185444b1SNan Zhou return -1; 745185444b1SNan Zhou } 746185444b1SNan Zhou if (bObj == nullptr) 747185444b1SNan Zhou { 748185444b1SNan Zhou return 1; 749185444b1SNan Zhou } 750185444b1SNan Zhou object_t::const_iterator aIt = aObj->find("@odata.id"); 751185444b1SNan Zhou object_t::const_iterator bIt = bObj->find("@odata.id"); 752185444b1SNan Zhou // If either object doesn't have the key, they get "sorted" to the end. 753185444b1SNan Zhou if (aIt == aObj->end()) 754185444b1SNan Zhou { 755185444b1SNan Zhou if (bIt == bObj->end()) 756185444b1SNan Zhou { 757185444b1SNan Zhou return 0; 758185444b1SNan Zhou } 759185444b1SNan Zhou return -1; 760185444b1SNan Zhou } 761185444b1SNan Zhou if (bIt == bObj->end()) 762185444b1SNan Zhou { 763185444b1SNan Zhou return 1; 764185444b1SNan Zhou } 765185444b1SNan Zhou const nlohmann::json::string_t* nameA = 766185444b1SNan Zhou aIt->second.get_ptr<const std::string*>(); 767185444b1SNan Zhou const nlohmann::json::string_t* nameB = 768185444b1SNan Zhou bIt->second.get_ptr<const std::string*>(); 769185444b1SNan Zhou // If either object doesn't have a string as the key, they get "sorted" to 770185444b1SNan Zhou // the end. 771185444b1SNan Zhou if (nameA == nullptr) 772185444b1SNan Zhou { 773185444b1SNan Zhou if (nameB == nullptr) 774185444b1SNan Zhou { 775185444b1SNan Zhou return 0; 776185444b1SNan Zhou } 777185444b1SNan Zhou return -1; 778185444b1SNan Zhou } 779185444b1SNan Zhou if (nameB == nullptr) 780185444b1SNan Zhou { 781185444b1SNan Zhou return 1; 782185444b1SNan Zhou } 783185444b1SNan Zhou boost::urls::url_view aUrl(*nameA); 784185444b1SNan Zhou boost::urls::url_view bUrl(*nameB); 785185444b1SNan Zhou auto segmentsAIt = aUrl.segments().begin(); 786185444b1SNan Zhou auto segmentsBIt = bUrl.segments().begin(); 787185444b1SNan Zhou 788185444b1SNan Zhou while (true) 789185444b1SNan Zhou { 790185444b1SNan Zhou if (segmentsAIt == aUrl.segments().end()) 791185444b1SNan Zhou { 792185444b1SNan Zhou if (segmentsBIt == bUrl.segments().end()) 793185444b1SNan Zhou { 794185444b1SNan Zhou return 0; 795185444b1SNan Zhou } 796185444b1SNan Zhou return -1; 797185444b1SNan Zhou } 798185444b1SNan Zhou if (segmentsBIt == bUrl.segments().end()) 799185444b1SNan Zhou { 800185444b1SNan Zhou return 1; 801185444b1SNan Zhou } 802185444b1SNan Zhou int res = alphanumComp(*segmentsAIt, *segmentsBIt); 803185444b1SNan Zhou if (res != 0) 804185444b1SNan Zhou { 805185444b1SNan Zhou return res; 806185444b1SNan Zhou } 807185444b1SNan Zhou 808185444b1SNan Zhou segmentsAIt++; 809185444b1SNan Zhou segmentsBIt++; 810185444b1SNan Zhou } 811185444b1SNan Zhou }; 812185444b1SNan Zhou 813185444b1SNan Zhou struct ODataObjectLess 814185444b1SNan Zhou { 815185444b1SNan Zhou bool operator()(const nlohmann::json& left, 816185444b1SNan Zhou const nlohmann::json& right) const 817185444b1SNan Zhou { 818185444b1SNan Zhou return odataObjectCmp(left, right) < 0; 819185444b1SNan Zhou } 820185444b1SNan Zhou }; 821185444b1SNan Zhou 822185444b1SNan Zhou // Sort the JSON array by |element[key]|. 823185444b1SNan Zhou // Elements without |key| or type of |element[key]| is not string are smaller 824185444b1SNan Zhou // those whose |element[key]| is string. 825185444b1SNan Zhou inline void sortJsonArrayByOData(nlohmann::json::array_t& array) 826185444b1SNan Zhou { 8273544d2a7SEd Tanous std::ranges::sort(array, ODataObjectLess()); 828185444b1SNan Zhou } 829185444b1SNan Zhou 8308a7c4b47SNan Zhou // Returns the estimated size of the JSON value 8318a7c4b47SNan Zhou // The implementation walks through every key and every value, accumulates the 8328a7c4b47SNan Zhou // total size of keys and values. 8338a7c4b47SNan Zhou // Ideally, we should use a custom allocator that nlohmann JSON supports. 8348a7c4b47SNan Zhou 8358a7c4b47SNan Zhou // Assumption made: 8368a7c4b47SNan Zhou // 1. number: 8 characters 8378a7c4b47SNan Zhou // 2. boolean: 5 characters (False) 8388a7c4b47SNan Zhou // 3. string: len(str) + 2 characters (quote) 8398a7c4b47SNan Zhou // 4. bytes: len(bytes) characters 8408a7c4b47SNan Zhou // 5. null: 4 characters (null) 8418a7c4b47SNan Zhou uint64_t getEstimatedJsonSize(const nlohmann::json& root); 8428a7c4b47SNan Zhou 84377dd8813SKowalski, Kamil } // namespace json_util 84477dd8813SKowalski, Kamil } // namespace redfish 845