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/* SPDX-FileCopyrightText: 2024 Greenbone AG
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "json.h"
/**
* @brief Escapes a string according to the JSON or JSONPath standard
*
* @param[in] string The string to escape
* @param[in] single_quote Whether to escape single quotes
*
* @return The escaped string
*/
gchar *
gvm_json_string_escape (const char *string, gboolean single_quote)
{
gchar *point;
if (string == NULL)
return NULL;
GString *escaped = g_string_sized_new (strlen (string));
for (point = (char *) string; *point != 0; point++)
{
unsigned char character = *point;
if ((character > 31) && (character != '\\')
&& (single_quote ? (character != '\'') : (character != '\"')))
{
g_string_append_c (escaped, character);
}
else
{
g_string_append_c (escaped, '\\');
switch (*point)
{
case '\\':
case '\'':
case '\"':
g_string_append_c (escaped, *point);
break;
case '\b':
g_string_append_c (escaped, 'b');
break;
case '\f':
g_string_append_c (escaped, 'f');
break;
case '\n':
g_string_append_c (escaped, 'n');
break;
case '\r':
g_string_append_c (escaped, 'r');
break;
case '\t':
g_string_append_c (escaped, 't');
break;
default:
g_string_append_printf (escaped, "u%04x", character);
}
}
}
return g_string_free (escaped, FALSE);
}
/**
* @brief Get a double field from a JSON object.
*
* @param[in] obj Object
* @param[in] key Field name.
*
* @return A double.
*/
double
gvm_json_obj_double (cJSON *obj, const gchar *key)
{
cJSON *item;
item = cJSON_GetObjectItem (obj, key);
if (item && cJSON_IsNumber (item))
return item->valuedouble;
return 0;
}
/**
* @brief Get an int field from a JSON object.
*
* @param[in] obj Object
* @param[in] key Field name.
* @param[out] val Either NULL or a return location for the int (only set if
* int field exists).
*
* @return 0 if such an int field exists, else 1.
*/
int
gvm_json_obj_check_int (cJSON *obj, const gchar *key, int *val)
{
cJSON *item;
item = cJSON_GetObjectItem (obj, key);
if (item && cJSON_IsNumber (item))
{
if (val)
*val = item->valueint;
return 0;
}
return 1;
}
/**
* @brief Get an int field from a JSON object.
*
* @param[in] obj Object
* @param[in] key Field name.
*
* @return An int.
*/
int
gvm_json_obj_int (cJSON *obj, const gchar *key)
{
cJSON *item;
item = cJSON_GetObjectItem (obj, key);
if (item && cJSON_IsNumber (item))
return item->valueint;
return 0;
}
/**
* @brief Get a string field from a JSON object.
*
* @param[in] obj Object
* @param[in] key Field name.
* @param[out] val Either NULL or a return location for the string (only set
* if string field exists). Freed by cJSON_Delete.
*
* @return 0 if such a field exists, else 1.
*/
int
gvm_json_obj_check_str (cJSON *obj, const gchar *key, gchar **val)
{
cJSON *item;
item = cJSON_GetObjectItem (obj, key);
if (item && cJSON_IsString (item))
{
if (val)
*val = item->valuestring;
return 0;
}
return 1;
}
/**
* @brief Get a string field from a JSON object.
*
* @param[in] obj Object
* @param[in] key Field name.
*
* @return A string. Will be freed by cJSON_Delete.
*/
gchar *
gvm_json_obj_str (cJSON *obj, const gchar *key)
{
cJSON *item;
item = cJSON_GetObjectItem (obj, key);
if (item && cJSON_IsString (item))
return item->valuestring;
return 0;
}
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