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 namespace redfish
26 {
27 
28 namespace json_util
29 {
30 
31 bool processJsonFromRequest(crow::Response& res, const crow::Request& req,
32                             nlohmann::json& reqJson)
33 {
34     JsonParseResult ret = parseRequestAsJson(req, reqJson);
35     if (ret == JsonParseResult::BadContentType)
36     {
37         messages::unrecognizedRequestBody(res);
38         return false;
39     }
40     reqJson = nlohmann::json::parse(req.body(), nullptr, false);
41 
42     if (reqJson.is_discarded())
43     {
44         messages::malformedJSON(res);
45         return false;
46     }
47 
48     return true;
49 }
50 
51 uint64_t getEstimatedJsonSize(const nlohmann::json& root)
52 {
53     if (root.is_null())
54     {
55         return 4;
56     }
57     if (root.is_number())
58     {
59         return 8;
60     }
61     if (root.is_boolean())
62     {
63         return 5;
64     }
65     if (root.is_string())
66     {
67         constexpr uint64_t quotesSize = 2;
68         return root.get<std::string>().size() + quotesSize;
69     }
70     if (root.is_binary())
71     {
72         return root.get_binary().size();
73     }
74     const nlohmann::json::array_t* arr =
75         root.get_ptr<const nlohmann::json::array_t*>();
76     if (arr != nullptr)
77     {
78         uint64_t sum = 0;
79         for (const auto& element : *arr)
80         {
81             sum += getEstimatedJsonSize(element);
82         }
83         return sum;
84     }
85     const nlohmann::json::object_t* object =
86         root.get_ptr<const nlohmann::json::object_t*>();
87     if (object != nullptr)
88     {
89         uint64_t sum = 0;
90         for (const auto& [k, v] : root.items())
91         {
92             constexpr uint64_t colonQuoteSpaceSize = 4;
93             sum += k.size() + getEstimatedJsonSize(v) + colonQuoteSpaceSize;
94         }
95         return sum;
96     }
97     return 0;
98 }
99 
100 } // namespace json_util
101 } // namespace redfish
102