src/webutil.c

   1 /*
   2  * Copyright (c) 2017 Samsung Electronics Co., Ltd.
   3  *
   4  * Contact: Jin Yoon <jinny.yoon@samsung.com>
   5  *          Geunsun Lee <gs86.lee@samsung.com>
   6  *          Eunyoung Lee <ey928.lee@samsung.com>
   7  *          Junkyu Han <junkyu.han@samsung.com>
   8  *          Jeonghoon Park <jh1979.park@samsung.com>
   9  *
  10  * Licensed under the Flora License, Version 1.1 (the License);
  11  * you may not use this file except in compliance with the License.
  12  * You may obtain a copy of the License at
  13  *
  14  * http://floralicense.org/license/
  15  *
  16  * Unless required by applicable law or agreed to in writing, software
  17  * distributed under the License is distributed on an AS IS BASIS,
  18  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  19  * See the License for the specific language governing permissions and
  20  * limitations under the License.
  21  */
  22
  23 #include <stdbool.h>
  24 #include <curl/curl.h>
  25 #include <glib-object.h>
  26 #include <json-glib/json-glib.h>
  27 #include "log.h"
  28 #include "webutil.h"
  29
  30 #define URI_PATH_LEN 64
  31 #define REQ_CON_TIMEOUT 5L
  32 #define REQ_TIMEOUT 7L
  33
  34 typedef struct _wu_json_handle {
  35         JsonBuilder *builder;
  36         bool is_begin;
  37         bool is_end;
  38 } wu_json_handle;
  39
  40 static wu_json_handle Json_h = {NULL, false, false};
  41
  42 static size_t _post_response_write_callback(char *ptr, size_t size, size_t nmemb, void *userdata)
  43 {
  44         size_t res_size = 0;
  45
  46         res_size = size*nmemb;
  47
  48         if (res_size > 0)
  49                 _I("POST response : %s", ptr);
  50         /* What should we do here, if response body has negative message? */
  51
  52         return res_size;
  53 }
  54
  55 static size_t _get_response_write_callback(void *ptr, size_t size, size_t nmemb, void *data)
  56 {
  57         size_t res_size = 0;
  58         char **received = (char **)data;
  59
  60         res_size = size*nmemb;
  61
  62         if (received && res_size > 0)
  63                 *received = strndup((char *)ptr, size*nmemb);
  64         else
  65                 _E("fail to get response [res size : %d]", res_size);
  66
  67         return res_size;
  68 }
  69
  70 int web_util_noti_init(void)
  71 {
  72         int ret = 0;
  73         CURLcode result;
  74         result = curl_global_init(CURL_GLOBAL_DEFAULT);
  75         if (result != CURLE_OK) {
  76                 _E("curl_global_init() failed: %s",
  77                         curl_easy_strerror(result));
  78                 ret = -1;
  79         }
  80         return ret;
  81 }
  82
  83 void web_util_noti_fini(void)
  84 {
  85         curl_global_cleanup();
  86         return;
  87 }
  88
  89 int web_util_noti_post(const char *resource, const char *json_data)
  90 {
  91         int ret = 0;
  92         CURL *curl = NULL;
  93         CURLcode response = CURLE_OK;
  94         struct curl_slist *headers = NULL;
  95
  96         retv_if(resource == NULL, -1);
  97         retv_if(json_data == NULL, -1);
  98
  99         _I("server : %s", resource);
 100         _I("json_data : %s", json_data);
 101
 102         curl = curl_easy_init();
 103
 104         if (!curl) {
 105                 _E("fail to init curl");
 106                 return -1;
 107         }
 108
 109         headers = curl_slist_append(headers, "Accept: application/json");
 110         headers = curl_slist_append(headers, "Content-Type: application/json");
 111
 112         curl_easy_setopt(curl, CURLOPT_URL, resource);
 113         curl_easy_setopt(curl, CURLOPT_POST, 1L);
 114         curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
 115         curl_easy_setopt(curl, CURLOPT_POSTFIELDS, json_data);
 116         curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, _post_response_write_callback);
 117         curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, REQ_CON_TIMEOUT);
 118         curl_easy_setopt(curl, CURLOPT_TIMEOUT, REQ_TIMEOUT);
 119
 120         response = curl_easy_perform(curl);
 121
 122         if (response != CURLE_OK) {
 123                 _E("curl_easy_perform() failed: %s",
 124                         curl_easy_strerror(response));
 125                 /* What should we do here, if response is kind of errors? */
 126                 ret = -1;
 127         }
 128
 129         curl_slist_free_all(headers);
 130         curl_easy_cleanup(curl);
 131
 132         return ret;
 133 }
 134
 135 int web_util_noti_get(const char *resource, char **res)
 136 {
 137         int ret = 0;
 138         CURL *curl = NULL;
 139         CURLcode response = CURLE_OK;
 140
 141         retv_if(resource == NULL, -1);
 142
 143         _I("GET to [%s]", resource);
 144
 145         curl = curl_easy_init();
 146
 147         if (!curl) {
 148                 _E("fail to init curl");
 149                 return -1;
 150         }
 151
 152         curl_easy_setopt(curl, CURLOPT_URL, resource);
 153         curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, _get_response_write_callback);
 154         curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)res);
 155         curl_easy_setopt(curl, CURLOPT_USERAGENT, "tizen-iot-agent/1.0");
 156         curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, REQ_CON_TIMEOUT);
 157
 158         response = curl_easy_perform(curl);
 159
 160         if (response != CURLE_OK) {
 161                 _E("curl_easy_perform() failed: %s",
 162                 curl_easy_strerror(response));
 163                 /* What should we do here, if response is kind of errors? */
 164                 ret = -1;
 165         }
 166
 167         curl_easy_cleanup(curl);
 168
 169         return ret;
 170 }
 171
 172 int web_util_json_init(void)
 173 {
 174         if (Json_h.builder)
 175                 g_object_unref(Json_h.builder);
 176
 177         Json_h.is_begin = false;
 178         Json_h.is_end = false;
 179         Json_h.builder = json_builder_new();
 180         retv_if(Json_h.builder == NULL, -1);
 181
 182         return 0;
 183 }
 184
 185 int web_util_json_fini(void)
 186 {
 187
 188         if (Json_h.builder) {
 189                 g_object_unref(Json_h.builder);
 190                 Json_h.builder = NULL;
 191         }
 192
 193         Json_h.is_begin = false;
 194         Json_h.is_end = false;
 195
 196         return 0;
 197 }
 198
 199 int web_util_json_begin(void)
 200 {
 201         retv_if(Json_h.builder == NULL, -1);
 202         retv_if(Json_h.is_begin == true, -1);
 203         retv_if(Json_h.is_end == true, -1);
 204
 205         Json_h.is_begin = true;
 206
 207         json_builder_begin_object(Json_h.builder);
 208
 209         return 0;
 210 }
 211
 212 int web_util_json_end(void)
 213 {
 214         retv_if(Json_h.builder == NULL, -1);
 215         retv_if(Json_h.is_begin == false, -1);
 216         retv_if(Json_h.is_end == true, -1);
 217
 218         json_builder_end_object(Json_h.builder);
 219         Json_h.is_end = true;
 220
 221         return 0;
 222 }
 223
 224 int web_util_json_add_int(const char* key, long long int value)
 225 {
 226         retv_if(!key, -1);
 227
 228         if (Json_h.builder == NULL) {
 229                 _E("Handle for json is not initialized, call web_util_json_init() first");
 230                 return -1;
 231         }
 232
 233         if (Json_h.is_begin == false) {
 234                 _E("json object has not begun, call web_util_json_begin() first");
 235                 return -1;
 236         }
 237
 238         if (Json_h.is_end == true) {
 239                 _E("json object has already ended, call web_util_json_begin() first");
 240                 return -1;
 241         }
 242
 243         json_builder_set_member_name(Json_h.builder, key);
 244         json_builder_add_int_value(Json_h.builder, value);
 245
 246         return 0;
 247 }
 248
 249 int web_util_json_add_double(const char* key, double value)
 250 {
 251         retv_if(!key, -1);
 252
 253         if (Json_h.builder == NULL) {
 254                 _E("Handle for json is not initialized, call web_util_json_init() first");
 255                 return -1;
 256         }
 257
 258         if (Json_h.is_begin == false) {
 259                 _E("json object has not begun, call web_util_json_begin() first");
 260                 return -1;
 261         }
 262
 263         if (Json_h.is_end == true) {
 264                 _E("json object has already ended, call web_util_json_begin() first");
 265                 return -1;
 266         }
 267
 268         json_builder_set_member_name(Json_h.builder, key);
 269         json_builder_add_double_value(Json_h.builder, value);
 270
 271         return 0;
 272 }
 273
 274 int web_util_json_add_boolean(const char* key, bool value)
 275 {
 276         retv_if(!key, -1);
 277
 278         if (Json_h.builder == NULL) {
 279                 _E("Handle for json is not initialized, call web_util_json_init() first");
 280                 return -1;
 281         }
 282
 283         if (Json_h.is_begin == false) {
 284                 _E("json object has not begun, call web_util_json_begin() first");
 285                 return -1;
 286         }
 287
 288         if (Json_h.is_end == true) {
 289                 _E("json object has already ended, call web_util_json_begin() first");
 290                 return -1;
 291         }
 292
 293         json_builder_set_member_name(Json_h.builder, key);
 294         json_builder_add_boolean_value(Json_h.builder, value);
 295
 296         return 0;
 297 }
 298
 299 int web_util_json_add_string(const char* key, const char *value)
 300 {
 301         retv_if(!key, -1);
 302
 303         if (Json_h.builder == NULL) {
 304                 _E("Handle for json is not initialized, call web_util_json_init() first");
 305                 return -1;
 306         }
 307
 308         if (Json_h.is_begin == false) {
 309                 _E("json object has not begun, call web_util_json_begin() first");
 310                 return -1;
 311         }
 312
 313         if (Json_h.is_end == true) {
 314                 _E("json object has already ended, call web_util_json_begin() first");
 315                 return -1;
 316         }
 317
 318         json_builder_set_member_name(Json_h.builder, key);
 319         json_builder_add_string_value(Json_h.builder, value);
 320
 321         return 0;
 322 }
 323
 324 int web_util_json_data_array_begin(void)
 325 {
 326         int ret = 0;
 327         retv_if(Json_h.builder == NULL, -1);
 328
 329         ret = web_util_json_begin();
 330         retv_if(ret, -1);
 331
 332         json_builder_set_member_name(Json_h.builder, "SensorDataList");
 333         json_builder_begin_array(Json_h.builder);
 334
 335         return 0;
 336 }
 337
 338 int web_util_json_data_array_end(void)
 339 {
 340         retv_if(Json_h.builder == NULL, -1);
 341         retv_if(Json_h.is_begin == false, -1);
 342         retv_if(Json_h.is_end == true, -1);
 343
 344         json_builder_end_array(Json_h.builder);
 345         web_util_json_end();
 346
 347         return 0;
 348 }
 349
 350 int web_util_json_add_sensor_data(const char* sensorpi_id, web_util_sensor_data_s *sensor_data)
 351 {
 352         const char n_id[] = "SensorPiID";
 353         const char n_motion[] = "Motion";
 354         const char n_flame[] = "Flame";
 355         const char n_hum[] = "Humidity";
 356         const char n_temp[] = "Temperature";
 357         const char n_vib[] = "Vibration";
 358         const char n_co2[] = "CO2";
 359         const char n_sound[] = "SoundLevel";
 360         const char n_tilt[] = "Tilt";
 361         const char n_light[] = "Light";
 362         const char n_collision[] = "Collision";
 363         const char n_obstacle[] = "Obstacle";
 364         const char n_distance[] = "Distance";
 365         const char n_rain[] = "Rain";
 366         const char n_touch[] = "Touch";
 367         const char n_gas[] = "Gas";
 368         const char n_e_sensor[] = "SensorEnabled";
 369         const char n_hash[] = "Hash";
 370
 371         retv_if(!sensorpi_id, -1);
 372         retv_if(Json_h.builder == NULL, -1);
 373         retv_if(Json_h.is_begin == false, -1);
 374         retv_if(Json_h.is_end == true, -1);
 375         retv_if(sensor_data == NULL, -1);
 376
 377         /* JSON structure :
 378         {
 379                 SensorPiID: string,
 380                 Motion: boolean,
 381                 Flame: boolean,
 382                 Humidity: double,
 383                 Temperature: double,
 384                 Vibration: boolean,
 385                 CO2: double,
 386                 SoundLevel: int,
 387                 Tilt: int,
 388                 Light: int,
 389                 Collision: int,
 390                 Obstacle: int,
 391                 Distance: double,
 392                 Rain: int,
 393                 Touch: int,
 394                 Gas: int,
 395                 SensorEnabled: [Motion, ],
 396                 Hash: string,
 397         }
 398         */
 399
 400
 401         json_builder_begin_object(Json_h.builder);
 402
 403         json_builder_set_member_name(Json_h.builder, n_id);
 404         json_builder_add_string_value(Json_h.builder, sensorpi_id);
 405
 406         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_MOTION) {
 407                 json_builder_set_member_name(Json_h.builder, n_motion);
 408                 json_builder_add_int_value(Json_h.builder, sensor_data->motion);
 409         }
 410
 411         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_FLAME) {
 412                 json_builder_set_member_name(Json_h.builder, n_flame);
 413                 json_builder_add_int_value(Json_h.builder, sensor_data->flame);
 414         }
 415
 416         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_HUMIDITY) {
 417                 json_builder_set_member_name(Json_h.builder, n_hum);
 418                 json_builder_add_double_value(Json_h.builder, sensor_data->humidity);
 419         }
 420
 421         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_TEMPERATURE) {
 422                 json_builder_set_member_name(Json_h.builder, n_temp);
 423                 json_builder_add_double_value(Json_h.builder, sensor_data->temperature);
 424         }
 425
 426         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_VIB) {
 427                 json_builder_set_member_name(Json_h.builder, n_vib);
 428                 json_builder_add_int_value(Json_h.builder, sensor_data->virbration);
 429         }
 430
 431         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_CO2) {
 432                 json_builder_set_member_name(Json_h.builder, n_co2);
 433                 json_builder_add_double_value(Json_h.builder, sensor_data->co2);
 434         }
 435
 436         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_SOUND) {
 437                 json_builder_set_member_name(Json_h.builder, n_sound);
 438                 json_builder_add_int_value(Json_h.builder, sensor_data->soundlevel);
 439         }
 440
 441         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_TILT) {
 442                 json_builder_set_member_name(Json_h.builder, n_tilt);
 443                 json_builder_add_int_value(Json_h.builder, sensor_data->tilt);
 444         }
 445
 446         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_LIGHT) {
 447                 json_builder_set_member_name(Json_h.builder, n_light);
 448                 json_builder_add_int_value(Json_h.builder, sensor_data->light);
 449         }
 450
 451         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_COLLISION) {
 452                 json_builder_set_member_name(Json_h.builder, n_collision);
 453                 json_builder_add_int_value(Json_h.builder, sensor_data->collision);
 454         }
 455
 456         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_OBSTACLE) {
 457                 json_builder_set_member_name(Json_h.builder, n_obstacle);
 458                 json_builder_add_int_value(Json_h.builder, sensor_data->obstacle);
 459         }
 460
 461         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_ULTRASONIC_DISTANCE) {
 462                 json_builder_set_member_name(Json_h.builder, n_distance);
 463                 json_builder_add_double_value(Json_h.builder, sensor_data->distance);
 464         }
 465
 466         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_RAIN) {
 467                 json_builder_set_member_name(Json_h.builder, n_rain);
 468                 json_builder_add_int_value(Json_h.builder, sensor_data->rain);
 469         }
 470
 471         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_TOUCH) {
 472                 json_builder_set_member_name(Json_h.builder, n_touch);
 473                 json_builder_add_int_value(Json_h.builder, sensor_data->touch);
 474         }
 475
 476         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_GAS) {
 477                 json_builder_set_member_name(Json_h.builder, n_gas);
 478                 json_builder_add_int_value(Json_h.builder, sensor_data->gas);
 479         }
 480
 481         json_builder_set_member_name(Json_h.builder, n_e_sensor);
 482         json_builder_begin_array(Json_h.builder);
 483
 484         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_MOTION)
 485                 json_builder_add_string_value(Json_h.builder, n_motion);
 486
 487         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_FLAME)
 488                 json_builder_add_string_value(Json_h.builder, n_flame);
 489
 490         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_HUMIDITY)
 491                 json_builder_add_string_value(Json_h.builder, n_hum);
 492
 493         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_TEMPERATURE)
 494                 json_builder_add_string_value(Json_h.builder, n_temp);
 495
 496         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_VIB)
 497                 json_builder_add_string_value(Json_h.builder, n_vib);
 498
 499         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_CO2)
 500                 json_builder_add_string_value(Json_h.builder, n_co2);
 501
 502         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_SOUND)
 503                 json_builder_add_string_value(Json_h.builder, n_sound);
 504
 505         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_TILT)
 506                 json_builder_add_string_value(Json_h.builder, n_tilt);
 507
 508         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_LIGHT)
 509                 json_builder_add_string_value(Json_h.builder, n_light);
 510
 511         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_COLLISION)
 512                 json_builder_add_string_value(Json_h.builder, n_collision);
 513
 514         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_OBSTACLE)
 515                 json_builder_add_string_value(Json_h.builder, n_obstacle);
 516
 517         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_ULTRASONIC_DISTANCE)
 518                 json_builder_add_string_value(Json_h.builder, n_distance);
 519
 520         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_RAIN)
 521                 json_builder_add_string_value(Json_h.builder, n_rain);
 522
 523         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_TOUCH)
 524                 json_builder_add_string_value(Json_h.builder, n_touch);
 525
 526         if (sensor_data->enabled_sensor & WEB_UTIL_SENSOR_GAS)
 527                 json_builder_add_string_value(Json_h.builder, n_gas);
 528
 529         json_builder_end_array(Json_h.builder);
 530
 531         if (sensor_data->hash) {
 532                 json_builder_set_member_name(Json_h.builder, n_hash);
 533                 json_builder_add_string_value(Json_h.builder, sensor_data->hash);
 534         }
 535
 536         json_builder_end_object(Json_h.builder);
 537
 538         return 0;
 539 }
 540
 541 char *web_util_get_json_string(void)
 542 {
 543         JsonGenerator *gen = NULL;
 544         JsonNode *root = NULL;
 545         char *str = NULL;
 546
 547         retv_if(Json_h.builder == NULL, NULL);
 548         retv_if(Json_h.is_begin == false, NULL);
 549         retv_if(Json_h.is_end == false, NULL);
 550
 551         root = json_builder_get_root(Json_h.builder);
 552         retv_if(root == NULL, NULL);
 553
 554         gen = json_generator_new();
 555         goto_if(gen == NULL, error_release_all);
 556         json_generator_set_root(gen, root);
 557
 558         str = json_generator_to_data(gen, NULL);
 559
 560         return str;
 561
 562 error_release_all:
 563         if (root)
 564                 json_node_free(root);
 565
 566         if (gen)
 567                 g_object_unref(gen);
 568
 569         return NULL;
 570 }
 571