1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/*
* Copyright 2017 IoT.bzh
*
* author: Loïc Collignon <loic.collignon@iot.bzh>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _BINDING_UTILS_H_
#define _BINDING_UTILS_H_
#include <string.h>
#include <json-c/json.h>
#ifndef AFB_BINDING_VERSION
#define AFB_BINDING_VERSION 2
#endif
#include <afb/afb-binding.h>
#define REGISTER_VERB(n, a, i, s) { .verb = #n, .callback = verb_##n, .auth = a, .info = i, .session = s }
/**
* @brief Get a string from a json object.
* @param[in] obj Json object from wich the string is queried.
* @param[in] name Name of the string to get.
* @return The string value.
*/
static inline const char* get_json_string(struct json_object* obj, const char* name)
{
struct json_object* item = NULL;
if (!obj || !name || !strlen(name)) return NULL;
if (!json_object_object_get_ex(obj, name, &item) || !item) return NULL;
return json_object_get_string(item);
}
/**
* @brief Add a string key/value to a json object.
* @param[in] obj The json object to which the key/value is added.
* @param[in] key The key to add.
* @param[in] value The value to add.
*/
static inline void json_object_add_string(struct json_object* obj, const char* key, const char* value)
{
json_object_object_add(obj, key, json_object_new_string(value));
}
/**
* @brief Send an @c event with the specified @c message then fail with the same @c message.
* @param[in] req The query to fail.
* @param[in] event The event to push.
* @param[in] message The message to push with the event and use as a fail message.
*/
static inline void afb_fail_ex(struct afb_req req, struct afb_event event, const char* message)
{
struct json_object* result = json_object_new_object();
json_object_add_string(result, "message", message);
afb_event_push(event, result);
afb_req_fail(req, message, NULL);
}
#endif // _BINDING_UTILS_H_
|
