197 lines
3.3 KiB
C
197 lines
3.3 KiB
C
/*
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Contributors:
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Dominik Kuhn - initial implementation and documentation.
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*/
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#include "config.h"
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#include <cjson/cJSON.h>
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#include <stdbool.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "json_help.h"
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#include "mosquitto.h"
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#include "mosquitto_broker.h"
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json_err_t json_create_array(cJSON* json, const char* name) {
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cJSON* jtmp;
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jtmp = cJSON_GetObjectItem(json, name);
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if (jtmp) {
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if (cJSON_IsArray(jtmp) == true) {
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return JSON_ERR_ARRAY_EXISTS;
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}
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else {
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return JSON_ERR_TYPE_INVAL;
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}
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}
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else {
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cJSON_AddArrayToObject(json, name);
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}
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return JSON_ERR_SUCCESS;
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}
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json_err_t json_add_id_to_array(cJSON* json, const char* name, const char * id)
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{
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cJSON* jtmp;
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cJSON* tid;
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jtmp = cJSON_GetObjectItem(json, name);
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if (jtmp) {
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if (cJSON_IsArray(jtmp) == true) {
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tid = cJSON_CreateString(id);
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cJSON_AddItemToArray(jtmp, tid);
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}
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else {
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return JSON_ERR_TYPE_INVAL;
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}
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}
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else {
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return JSON_ERR_SYNTAX;
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}
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return JSON_ERR_SUCCESS;
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}
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json_err_t json_del_id_from_array(cJSON* json, const char* name, const char* id)
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{
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cJSON* jtmp = NULL;
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cJSON* tid = NULL;
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cJSON* detached_item = NULL;
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int array_index = 0;
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jtmp = cJSON_GetObjectItem(json, name);
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if (jtmp) {
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if (cJSON_IsArray(jtmp) == true) {
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cJSON_ArrayForEach(tid, jtmp)
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{
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if ( strcmp( cJSON_GetStringValue(tid),id) == 0)
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{
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detached_item = cJSON_DetachItemFromArray(jtmp, array_index);
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}
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array_index++;
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}
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}
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else {
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return JSON_ERR_TYPE_INVAL;
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}
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}
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else {
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return JSON_ERR_SYNTAX;
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}
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return JSON_ERR_SUCCESS;
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}
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json_err_t json_del_clientid(cJSON* json, const char* id)
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{
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cJSON* next_object = NULL;
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cJSON_ArrayForEach(next_object, json)
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{
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if (next_object->string != NULL) {
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mosquitto_log_printf(MOSQ_LOG_INFO, "wamo: deleting client with id %s from topic %s", id, next_object->string);
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json_del_id_from_array(json, next_object->string, id);
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}
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}
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return JSON_ERR_SUCCESS;
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}
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int json_get_bool(cJSON *json, const char *name, bool *value, bool optional, bool default_value)
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{
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cJSON *jtmp;
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if(optional == true){
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*value = default_value;
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}
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jtmp = cJSON_GetObjectItem(json, name);
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if(jtmp){
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if(cJSON_IsBool(jtmp) == false){
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return MOSQ_ERR_INVAL;
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}
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*value = cJSON_IsTrue(jtmp);
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}else{
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if(optional == false){
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return MOSQ_ERR_INVAL;
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}
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}
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return MOSQ_ERR_SUCCESS;
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}
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int json_get_int(cJSON *json, const char *name, int *value, bool optional, int default_value)
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{
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cJSON *jtmp;
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if(optional == true){
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*value = default_value;
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}
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jtmp = cJSON_GetObjectItem(json, name);
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if(jtmp){
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if(cJSON_IsNumber(jtmp) == false){
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return MOSQ_ERR_INVAL;
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}
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*value = jtmp->valueint;
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}else{
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if(optional == false){
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return MOSQ_ERR_INVAL;
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}
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}
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return MOSQ_ERR_SUCCESS;
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}
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int json_get_string(cJSON *json, const char *name, char **value, bool optional)
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{
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cJSON *jtmp;
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*value = NULL;
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jtmp = cJSON_GetObjectItem(json, name);
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if(jtmp){
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if(cJSON_IsString(jtmp) == false){
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return MOSQ_ERR_INVAL;
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}
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*value = jtmp->valuestring;
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}else{
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if(optional == false){
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return MOSQ_ERR_INVAL;
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}
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}
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return MOSQ_ERR_SUCCESS;
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}
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cJSON *cJSON_AddIntToObject(cJSON * const object, const char * const name, int number)
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{
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char buf[30];
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snprintf(buf, sizeof(buf), "%d", number);
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return cJSON_AddRawToObject(object, name, buf);
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}
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