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// Copyright 2014 BitPay Inc.
// Copyright 2015 Bitcoin Core Developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or https://opensource.org/licenses/mit-license.php.
#include <univalue.h>
#include <iomanip>
#include <map>
#include <memory>
#include <sstream>
#include <string>
#include <utility>
#include <vector>
const UniValue NullUniValue;
void UniValue::clear()
{
typ = VNULL;
val.clear();
keys.clear();
values.clear();
}
void UniValue::setNull()
{
clear();
}
void UniValue::setBool(bool val_)
{
clear();
typ = VBOOL;
if (val_)
val = "1";
}
static bool validNumStr(const std::string& s)
{
std::string tokenVal;
unsigned int consumed;
enum jtokentype tt = getJsonToken(tokenVal, consumed, s.data(), s.data() + s.size());
return (tt == JTOK_NUMBER);
}
void UniValue::setNumStr(const std::string& val_)
{
if (!validNumStr(val_)) {
throw std::runtime_error{"The string '" + val_ + "' is not a valid JSON number"};
}
clear();
typ = VNUM;
val = val_;
}
void UniValue::setInt(uint64_t val_)
{
std::ostringstream oss;
oss << val_;
return setNumStr(oss.str());
}
void UniValue::setInt(int64_t val_)
{
std::ostringstream oss;
oss << val_;
return setNumStr(oss.str());
}
void UniValue::setFloat(double val_)
{
std::ostringstream oss;
oss << std::setprecision(16) << val_;
return setNumStr(oss.str());
}
void UniValue::setStr(const std::string& val_)
{
clear();
typ = VSTR;
val = val_;
}
void UniValue::setArray()
{
clear();
typ = VARR;
}
void UniValue::setObject()
{
clear();
typ = VOBJ;
}
void UniValue::push_back(UniValue val)
{
checkType(VARR);
values.push_back(std::move(val));
}
void UniValue::push_backV(const std::vector<UniValue>& vec)
{
checkType(VARR);
values.insert(values.end(), vec.begin(), vec.end());
}
void UniValue::__pushKV(std::string key, UniValue val)
{
checkType(VOBJ);
keys.push_back(std::move(key));
values.push_back(std::move(val));
}
void UniValue::pushKV(std::string key, UniValue val)
{
checkType(VOBJ);
size_t idx;
if (findKey(key, idx))
values[idx] = std::move(val);
else
__pushKV(std::move(key), std::move(val));
}
void UniValue::pushKVs(UniValue obj)
{
checkType(VOBJ);
obj.checkType(VOBJ);
for (size_t i = 0; i < obj.keys.size(); i++)
__pushKV(std::move(obj.keys.at(i)), std::move(obj.values.at(i)));
}
void UniValue::getObjMap(std::map<std::string,UniValue>& kv) const
{
if (typ != VOBJ)
return;
kv.clear();
for (size_t i = 0; i < keys.size(); i++)
kv[keys[i]] = values[i];
}
bool UniValue::findKey(const std::string& key, size_t& retIdx) const
{
for (size_t i = 0; i < keys.size(); i++) {
if (keys[i] == key) {
retIdx = i;
return true;
}
}
return false;
}
bool UniValue::checkObject(const std::map<std::string,UniValue::VType>& t) const
{
if (typ != VOBJ) {
return false;
}
for (const auto& object: t) {
size_t idx = 0;
if (!findKey(object.first, idx)) {
return false;
}
if (values.at(idx).getType() != object.second) {
return false;
}
}
return true;
}
const UniValue& UniValue::operator[](const std::string& key) const
{
if (typ != VOBJ)
return NullUniValue;
size_t index = 0;
if (!findKey(key, index))
return NullUniValue;
return values.at(index);
}
const UniValue& UniValue::operator[](size_t index) const
{
if (typ != VOBJ && typ != VARR)
return NullUniValue;
if (index >= values.size())
return NullUniValue;
return values.at(index);
}
void UniValue::checkType(const VType& expected) const
{
if (typ != expected) {
throw std::runtime_error{"JSON value of type " + std::string{uvTypeName(typ)} + " is not of expected type " +
std::string{uvTypeName(expected)}};
}
}
const char *uvTypeName(UniValue::VType t)
{
switch (t) {
case UniValue::VNULL: return "null";
case UniValue::VBOOL: return "bool";
case UniValue::VOBJ: return "object";
case UniValue::VARR: return "array";
case UniValue::VSTR: return "string";
case UniValue::VNUM: return "number";
}
// not reached
return nullptr;
}
const UniValue& find_value(const UniValue& obj, const std::string& name)
{
for (unsigned int i = 0; i < obj.keys.size(); i++)
if (obj.keys[i] == name)
return obj.values.at(i);
return NullUniValue;
}
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