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
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
/*
* Copyright (C) 2015, 2016, 2017, 2018 "IoT.bzh"
* Author "Romain Forlot" <romain.forlot@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.
*/
#define _GNU_SOURCE
#include "harvester.h"
#include "harvester-apidef.h"
#include <string.h>
#include <stdio.h>
#include "plugins/tsdb.h"
#include "curl-wrap.h"
#include "wrap-json.h"
#define DEFAULT_DB "agl-garner"
#define DEFAULT_DBHOST "localhost"
#define DEFAULT_DBPORT "8086"
#define URL_MAXIMUM_LENGTH 2047
CURL* (*tsdb_write)(const char* host, int port, json_object *metric);
CURL* (*tsdb_read)(const char* host, int port, json_object *metric);
void (*curl_cb)(void *closure, int status, CURL *curl, const char *result, size_t size);
int do_write(struct afb_req req, const char* host, int port, json_object *metric)
{
CURL *curl_request;
curl_request = tsdb_write(host, port, metric);
curl_wrap_do(curl_request, curl_cb, &req);
return 0;
}
void write(struct afb_req req)
{
int port = -1;
const char *host = NULL;
json_object *req_args = afb_req_json(req),
*metric = NULL;
if(wrap_json_unpack(req_args, "{s?s,s?i,so!}",
"host", &host,
"port", &port,
"metric", &metric) || ! metric)
afb_req_fail(req, "Failed", "Error processing arguments. Miss metric\
JSON object or malformed");
else if(do_write(req, host, port, metric))
afb_req_fail(req, "Failed", "Error processing metric JSON object.\
Malformed !");
}
void auth(struct afb_req request)
{
afb_req_session_set_LOA(request, 1);
afb_req_success(request, NULL, NULL);
}
int init()
{
/* Ok 2 int is no needed, 1 is enough but 2 is more lisible. */
int db_up = 0, err = 0;
err = curl_global_init(CURL_GLOBAL_DEFAULT);
if (!err)
db_up = db_ping();
else
AFB_ERROR("Something went wrong initiliazing libcurl. Abort");
switch (db_up) {
case INFLUX:
tsdb_write = influxdb_write;
tsdb_read = influxdb_read;
curl_cb = influxdb_cb;
break;
default:
AFB_ERROR("No Time Series Database found. Abort");
err = -1;
break;
}
return err;
}
|
