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/*
* This file is part of PowerDNS or dnsdist.
* Copyright -- PowerDNS.COM B.V. and its contributors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* In addition, for the avoidance of any doubt, permission is granted to
* link this program with OpenSSL and to (re)distribute the binaries
* produced as the result of such linking.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "json.hh"
#include "namespaces.hh"
#include "misc.hh"
using json11::Json;
static inline int intFromJsonInternal(const Json& container, const std::string& key, const bool have_default, const int default_value)
{
const auto& val = container[key];
if (val.is_number()) {
return val.int_value();
}
if (val.is_string()) {
try {
return std::stoi(val.string_value());
} catch (std::out_of_range&) {
throw JsonException("Key '" + string(key) + "' is out of range");
}
}
if (have_default) {
return default_value;
}
throw JsonException("Key '" + string(key) + "' not an Integer or not present");
}
int intFromJson(const Json& container, const std::string& key)
{
return intFromJsonInternal(container, key, false, 0);
}
int intFromJson(const Json& container, const std::string& key, const int default_value)
{
return intFromJsonInternal(container, key, true, default_value);
}
static inline unsigned int uintFromJsonInternal(const Json& container, const std::string& key, const bool have_default, const unsigned int default_value)
{
int intval = intFromJsonInternal(container, key, have_default, static_cast<int>(default_value));
if (intval >= 0) {
return intval;
}
throw JsonException("Key '" + string(key) + "' is not a positive Integer");
}
unsigned int uintFromJson(const Json& container, const std::string& key)
{
return uintFromJsonInternal(container, key, false, 0);
}
unsigned int uintFromJson(const Json& container, const std::string& key, const unsigned int default_value)
{
return uintFromJsonInternal(container, key, true, default_value);
}
static inline double doubleFromJsonInternal(const Json& container, const std::string& key, const bool have_default, const double default_value)
{
const auto& val = container[key];
if (val.is_number()) {
return val.number_value();
}
if (val.is_string()) {
try {
return std::stod(val.string_value());
} catch (std::out_of_range&) {
throw JsonException("Value for key '" + string(key) + "' is out of range");
}
}
if (have_default) {
return default_value;
}
throw JsonException("Key '" + string(key) + "' not an Integer or not present");
}
double doubleFromJson(const Json& container, const std::string& key)
{
return doubleFromJsonInternal(container, key, false, 0);
}
double doubleFromJson(const Json& container, const std::string& key, const double default_value)
{
return doubleFromJsonInternal(container, key, true, default_value);
}
string stringFromJson(const Json& container, const std::string &key)
{
const auto& val = container[key];
if (val.is_string()) {
return val.string_value();
}
throw JsonException("Key '" + string(key) + "' not present or not a String");
}
static inline bool boolFromJsonInternal(const Json& container, const std::string& key, const bool have_default, const bool default_value)
{
const auto& val = container[key];
if (val.is_bool()) {
return val.bool_value();
}
if (have_default) {
return default_value;
}
throw JsonException("Key '" + string(key) + "' not present or not a Bool");
}
bool boolFromJson(const Json& container, const std::string& key)
{
return boolFromJsonInternal(container, key, false, false);
}
bool boolFromJson(const Json& container, const std::string& key, const bool default_value)
{
return boolFromJsonInternal(container, key, true, default_value);
}
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