tdlight/td/telegram/JsonValue.cpp

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//
2021-01-01 13:57:46 +01:00
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include "td/telegram/JsonValue.h"
#include "td/telegram/misc.h"
#include "td/utils/algorithm.h"
#include "td/utils/JsonBuilder.h"
#include "td/utils/logging.h"
#include "td/utils/misc.h"
#include "td/utils/utf8.h"
#include <utility>
namespace td {
static td_api::object_ptr<td_api::JsonValue> get_json_value_object(const JsonValue &json_value);
static td_api::object_ptr<td_api::jsonObjectMember> get_json_value_member_object(
const std::pair<MutableSlice, JsonValue> &json_value_member) {
return td_api::make_object<td_api::jsonObjectMember>(json_value_member.first.str(),
get_json_value_object(json_value_member.second));
}
static td_api::object_ptr<td_api::JsonValue> get_json_value_object(const JsonValue &json_value) {
switch (json_value.type()) {
case JsonValue::Type::Null:
return td_api::make_object<td_api::jsonValueNull>();
case JsonValue::Type::Boolean:
return td_api::make_object<td_api::jsonValueBoolean>(json_value.get_boolean());
case JsonValue::Type::Number:
return td_api::make_object<td_api::jsonValueNumber>(to_double(json_value.get_number()));
case JsonValue::Type::String:
return td_api::make_object<td_api::jsonValueString>(json_value.get_string().str());
case JsonValue::Type::Array:
return td_api::make_object<td_api::jsonValueArray>(transform(json_value.get_array(), get_json_value_object));
case JsonValue::Type::Object:
return td_api::make_object<td_api::jsonValueObject>(
transform(json_value.get_object(), get_json_value_member_object));
default:
UNREACHABLE();
return nullptr;
}
}
Result<td_api::object_ptr<td_api::JsonValue>> get_json_value(MutableSlice json) {
TRY_RESULT(json_value, json_decode(json));
return get_json_value_object(json_value);
}
Result<telegram_api::object_ptr<telegram_api::JSONValue>> get_input_json_value(MutableSlice json) {
TRY_RESULT(json_value, get_json_value(json));
return convert_json_value(std::move(json_value));
}
static td_api::object_ptr<td_api::jsonObjectMember> convert_json_value_member_object(
const telegram_api::object_ptr<telegram_api::jsonObjectValue> &json_object_value) {
CHECK(json_object_value != nullptr);
return td_api::make_object<td_api::jsonObjectMember>(json_object_value->key_,
convert_json_value_object(json_object_value->value_));
}
td_api::object_ptr<td_api::JsonValue> convert_json_value_object(
const tl_object_ptr<telegram_api::JSONValue> &json_value) {
CHECK(json_value != nullptr);
switch (json_value->get_id()) {
case telegram_api::jsonNull::ID:
return td_api::make_object<td_api::jsonValueNull>();
case telegram_api::jsonBool::ID:
return td_api::make_object<td_api::jsonValueBoolean>(
static_cast<const telegram_api::jsonBool *>(json_value.get())->value_);
case telegram_api::jsonNumber::ID:
return td_api::make_object<td_api::jsonValueNumber>(
static_cast<const telegram_api::jsonNumber *>(json_value.get())->value_);
case telegram_api::jsonString::ID:
return td_api::make_object<td_api::jsonValueString>(
static_cast<const telegram_api::jsonString *>(json_value.get())->value_);
case telegram_api::jsonArray::ID:
return td_api::make_object<td_api::jsonValueArray>(
transform(static_cast<const telegram_api::jsonArray *>(json_value.get())->value_, convert_json_value_object));
case telegram_api::jsonObject::ID:
return td_api::make_object<td_api::jsonValueObject>(transform(
static_cast<const telegram_api::jsonObject *>(json_value.get())->value_, convert_json_value_member_object));
default:
UNREACHABLE();
return nullptr;
}
}
static telegram_api::object_ptr<telegram_api::jsonObjectValue> convert_json_value_member(
td_api::object_ptr<td_api::jsonObjectMember> &&json_object_member) {
CHECK(json_object_member != nullptr);
if (!clean_input_string(json_object_member->key_)) {
json_object_member->key_.clear();
}
return telegram_api::make_object<telegram_api::jsonObjectValue>(
json_object_member->key_, convert_json_value(std::move(json_object_member->value_)));
}
tl_object_ptr<telegram_api::JSONValue> convert_json_value(td_api::object_ptr<td_api::JsonValue> &&json_value) {
if (json_value == nullptr) {
return td_api::make_object<telegram_api::jsonNull>();
}
switch (json_value->get_id()) {
case td_api::jsonValueNull::ID:
return telegram_api::make_object<telegram_api::jsonNull>();
case td_api::jsonValueBoolean::ID:
return telegram_api::make_object<telegram_api::jsonBool>(
static_cast<const td_api::jsonValueBoolean *>(json_value.get())->value_);
case td_api::jsonValueNumber::ID:
return telegram_api::make_object<telegram_api::jsonNumber>(
static_cast<const td_api::jsonValueNumber *>(json_value.get())->value_);
case td_api::jsonValueString::ID: {
auto &str = static_cast<td_api::jsonValueString *>(json_value.get())->value_;
if (!clean_input_string(str)) {
str.clear();
}
return telegram_api::make_object<telegram_api::jsonString>(str);
}
case td_api::jsonValueArray::ID:
return telegram_api::make_object<telegram_api::jsonArray>(
transform(std::move(static_cast<td_api::jsonValueArray *>(json_value.get())->values_), convert_json_value));
case td_api::jsonValueObject::ID:
return telegram_api::make_object<telegram_api::jsonObject>(transform(
std::move(static_cast<td_api::jsonValueObject *>(json_value.get())->members_), convert_json_value_member));
default:
UNREACHABLE();
return nullptr;
}
}
namespace {
class JsonableJsonValue final : public Jsonable {
public:
explicit JsonableJsonValue(const td_api::JsonValue *json_value) : json_value_(json_value) {
}
void store(JsonValueScope *scope) const {
if (json_value_ == nullptr) {
*scope << JsonNull();
return;
}
switch (json_value_->get_id()) {
case td_api::jsonValueNull::ID:
*scope << JsonNull();
break;
case td_api::jsonValueBoolean::ID:
*scope << JsonBool(static_cast<const td_api::jsonValueBoolean *>(json_value_)->value_);
break;
case td_api::jsonValueNumber::ID:
*scope << static_cast<const td_api::jsonValueNumber *>(json_value_)->value_;
break;
case td_api::jsonValueString::ID: {
auto &str = static_cast<const td_api::jsonValueString *>(json_value_)->value_;
if (!check_utf8(str)) {
LOG(ERROR) << "Have incorrect UTF-8 string " << str;
*scope << "";
} else {
*scope << str;
}
break;
}
case td_api::jsonValueArray::ID: {
auto array = scope->enter_array();
for (auto &value : static_cast<const td_api::jsonValueArray *>(json_value_)->values_) {
array << JsonableJsonValue(value.get());
}
break;
}
case td_api::jsonValueObject::ID: {
auto object = scope->enter_object();
for (auto &member : static_cast<const td_api::jsonValueObject *>(json_value_)->members_) {
if (member != nullptr) {
if (!check_utf8(member->key_)) {
LOG(ERROR) << "Have incorrect UTF-8 object key " << member->key_;
} else {
object(member->key_, JsonableJsonValue(member->value_.get()));
}
}
}
break;
}
default:
UNREACHABLE();
}
}
private:
const td_api::JsonValue *json_value_;
};
} // namespace
string get_json_string(const td_api::JsonValue *json_value) {
return json_encode<string>(JsonableJsonValue(json_value));
}
bool get_json_value_bool(telegram_api::object_ptr<telegram_api::JSONValue> &&json_value, Slice name) {
CHECK(json_value != nullptr);
if (json_value->get_id() == telegram_api::jsonBool::ID) {
return static_cast<const telegram_api::jsonBool *>(json_value.get())->value_;
}
LOG(ERROR) << "Expected Boolean as " << name << ", but found " << to_string(json_value);
return false;
}
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int32 get_json_value_int(telegram_api::object_ptr<telegram_api::JSONValue> &&json_value, Slice name) {
CHECK(json_value != nullptr);
if (json_value->get_id() == telegram_api::jsonNumber::ID) {
return static_cast<int32>(static_cast<const telegram_api::jsonNumber *>(json_value.get())->value_);
}
LOG(ERROR) << "Expected Integer as " << name << ", but found " << to_string(json_value);
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return 0;
}
string get_json_value_string(telegram_api::object_ptr<telegram_api::JSONValue> &&json_value, Slice name) {
CHECK(json_value != nullptr);
if (json_value->get_id() == telegram_api::jsonString::ID) {
return std::move(static_cast<const telegram_api::jsonString *>(json_value.get())->value_);
}
LOG(ERROR) << "Expected String as " << name << ", but found " << to_string(json_value);
return string();
}
} // namespace td