2 * Copyright (C) 2010-2016 jeanfi@gmail.com
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 #define _(str) gettext(str)
27 #include <curl/curl.h>
29 #include <psensor_json.h>
31 #include <server/server.h>
41 static const char *PROVIDER_NAME = "rsensor";
43 static const char *get_url(struct psensor *s)
45 return (char *)s->provider_data;
48 static size_t cbk_curl(void *buffer, size_t size, size_t nmemb, void *userp)
53 realsize = size * nmemb;
54 mem = (struct ucontent *)userp;
56 mem->data = realloc(mem->data, mem->len + realsize + 1);
58 memcpy(&(mem->data[mem->len]), buffer, realsize);
60 mem->data[mem->len] = 0;
65 static char *create_api_1_1_sensors_url(const char *base_url)
70 nurl = url_normalize(base_url);
71 n = strlen(nurl) + strlen(URL_BASE_API_1_1_SENSORS) + 1;
75 strcat(ret, URL_BASE_API_1_1_SENSORS);
82 void rsensor_init(void)
84 curl = curl_easy_init();
87 void rsensor_cleanup(void)
89 curl_easy_cleanup(curl);
92 static json_object *get_json_object(const char *url)
94 struct ucontent chunk;
102 chunk.data = malloc(1);
105 curl_easy_setopt(curl, CURLOPT_URL, url);
106 curl_easy_setopt(curl, CURLOPT_VERBOSE, 0);
107 curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, cbk_curl);
108 curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk);
110 log_fct("%s: HTTP request %s", PROVIDER_NAME, url);
112 if (curl_easy_perform(curl) == CURLE_OK)
113 obj = json_tokener_parse(chunk.data);
115 log_err(_("%s: Fail to connect to: %s"), PROVIDER_NAME, url);
122 struct psensor **get_remote_sensors(const char *server_url,
123 int values_max_length)
125 struct psensor **sensors, *s;
132 url = create_api_1_1_sensors_url(server_url);
134 obj = get_json_object(url);
136 if (obj && !is_error(obj)) {
137 n = json_object_array_length(obj);
138 sensors = malloc((n + 1) * sizeof(struct psensor *));
140 for (i = 0; i < n; i++) {
141 s = psensor_new_from_json
142 (json_object_array_get_idx(obj, i),
150 json_object_put(obj);
152 log_err(_("%s: Invalid content: %s"), PROVIDER_NAME, url);
158 sensors = malloc(sizeof(struct psensor *));
165 static void remote_psensor_update(struct psensor *s)
169 obj = get_json_object(get_url(s));
171 if (obj && !is_error(obj)) {
174 json_object_object_get_ex(obj, "last_measure", &om);
176 if (!is_error(obj)) {
177 json_object *ov, *ot;
180 json_object_object_get_ex(om, "value", &ov);
181 json_object_object_get_ex(om, "time", &ot);
183 tv.tv_sec = json_object_get_int(ot);
186 psensor_set_current_measure
187 (s, json_object_get_double(ov), tv);
190 json_object_put(obj);
192 log_err(_("%s: Invalid JSON: %s"), PROVIDER_NAME, get_url(s));
197 void remote_psensor_list_update(struct psensor **sensors)
199 struct psensor **cur;
203 struct psensor *s = *cur;
205 if (s->type & SENSOR_TYPE_REMOTE)
206 remote_psensor_update(s);