1 /*
2 // Copyright (c) 2018 Intel Corporation
3 //
4 // Licensed under the Apache License, Version 2.0 (the "License");
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
7 //
8 // http://www.apache.org/licenses/LICENSE-2.0
9 //
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
15 */
16 #include "utils/json_utils.hpp"
17
18 #include "error_messages.hpp"
19 #include "http/http_request.hpp"
20 #include "http/http_response.hpp"
21 #include "http/parsing.hpp"
22
23 #include <nlohmann/json.hpp>
24
25 #include <cstdint>
26 #include <string>
27
28 namespace redfish
29 {
30
31 namespace json_util
32 {
33
processJsonFromRequest(crow::Response & res,const crow::Request & req,nlohmann::json & reqJson)34 bool processJsonFromRequest(crow::Response& res, const crow::Request& req,
35 nlohmann::json& reqJson)
36 {
37 JsonParseResult ret = parseRequestAsJson(req, reqJson);
38 if (ret == JsonParseResult::BadContentType)
39 {
40 messages::unrecognizedRequestBody(res);
41 return false;
42 }
43 reqJson = nlohmann::json::parse(req.body(), nullptr, false);
44
45 if (reqJson.is_discarded())
46 {
47 messages::malformedJSON(res);
48 return false;
49 }
50
51 return true;
52 }
53
getEstimatedJsonSize(const nlohmann::json & root)54 uint64_t getEstimatedJsonSize(const nlohmann::json& root)
55 {
56 if (root.is_null())
57 {
58 return 4;
59 }
60 if (root.is_number())
61 {
62 return 8;
63 }
64 if (root.is_boolean())
65 {
66 return 5;
67 }
68 if (root.is_string())
69 {
70 constexpr uint64_t quotesSize = 2;
71 return root.get<std::string>().size() + quotesSize;
72 }
73 if (root.is_binary())
74 {
75 return root.get_binary().size();
76 }
77 const nlohmann::json::array_t* arr =
78 root.get_ptr<const nlohmann::json::array_t*>();
79 if (arr != nullptr)
80 {
81 uint64_t sum = 0;
82 for (const auto& element : *arr)
83 {
84 sum += getEstimatedJsonSize(element);
85 }
86 return sum;
87 }
88 const nlohmann::json::object_t* object =
89 root.get_ptr<const nlohmann::json::object_t*>();
90 if (object != nullptr)
91 {
92 uint64_t sum = 0;
93 for (const auto& [k, v] : root.items())
94 {
95 constexpr uint64_t colonQuoteSpaceSize = 4;
96 sum += k.size() + getEstimatedJsonSize(v) + colonQuoteSpaceSize;
97 }
98 return sum;
99 }
100 return 0;
101 }
102
103 } // namespace json_util
104 } // namespace redfish
105