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DLE/backend/services/tokenBalanceService.js

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/**
* Copyright (c) 2024-2025 Тарабанов Александр Викторович
* All rights reserved.
*
* This software is proprietary and confidential.
* Unauthorized copying, modification, or distribution is prohibited.
*
* For licensing inquiries: info@hb3-accelerator.com
* Website: https://hb3-accelerator.com
* GitHub: https://github.com/HB3-ACCELERATOR
*/
/**
* Сервис получения балансов токенов пользователя из БД и RPC
*/
const { ethers } = require('ethers');
const db = require('../db');
const logger = require('../utils/logger');
async function getUserTokenBalances(address) {
if (!address) return [];
// Получаем ключ шифрования
const fs = require('fs');
const path = require('path');
let encryptionKey = 'default-key';
try {
const keyPath = path.join(__dirname, '../ssl/keys/full_db_encryption.key');
if (fs.existsSync(keyPath)) {
encryptionKey = fs.readFileSync(keyPath, 'utf8').trim();
}
} catch (keyError) {
console.error('Error reading encryption key:', keyError);
}
// Получаем токены и RPC с расшифровкой
const tokensResult = await db.getQuery()(
'SELECT id, min_balance, readonly_threshold, editor_threshold, created_at, updated_at, decrypt_text(name_encrypted, $1) as name, decrypt_text(address_encrypted, $1) as address, decrypt_text(network_encrypted, $1) as network FROM auth_tokens',
[encryptionKey]
);
const tokens = tokensResult.rows;
const rpcProvidersResult = await db.getQuery()(
'SELECT id, chain_id, created_at, updated_at, decrypt_text(network_id_encrypted, $1) as network_id, decrypt_text(rpc_url_encrypted, $1) as rpc_url FROM rpc_providers',
[encryptionKey]
);
const rpcProviders = rpcProvidersResult.rows;
const rpcMap = {};
for (const rpc of rpcProviders) {
rpcMap[rpc.network_id] = rpc.rpc_url;
}
const ERC20_ABI = ['function balanceOf(address owner) view returns (uint256)'];
const results = [];
for (const token of tokens) {
const rpcUrl = rpcMap[token.network];
if (!rpcUrl) {
logger.warn(`[tokenBalanceService] RPC URL не найден для сети ${token.network}`);
continue;
}
// Создаем провайдер с таймаутом
const provider = new ethers.JsonRpcProvider(rpcUrl, undefined, {
polling: false,
staticNetwork: true
});
// Устанавливаем таймаут для запросов
provider._getConnection().timeout = 10000; // 10 секунд
const tokenContract = new ethers.Contract(token.address, ERC20_ABI, provider);
let balance = '0';
try {
logger.info(`[tokenBalanceService] Получение баланса для ${token.name} (${token.address}) в сети ${token.network} для адреса ${address}`);
// Создаем промис с таймаутом
const balancePromise = tokenContract.balanceOf(address);
const timeoutPromise = new Promise((_, reject) =>
setTimeout(() => reject(new Error('Request timeout')), 10000)
);
const rawBalance = await Promise.race([balancePromise, timeoutPromise]);
balance = ethers.formatUnits(rawBalance, 18);
if (!balance || isNaN(Number(balance))) balance = '0';
logger.info(`[tokenBalanceService] Баланс получен для ${token.name}: ${balance}`);
} catch (e) {
logger.error(
`[tokenBalanceService] Ошибка получения баланса для ${token.name} (${token.address}) в сети ${token.network}:`,
e.message || e
);
balance = '0';
}
results.push({
network: token.network,
tokenAddress: token.address,
tokenName: token.name,
symbol: token.symbol || '',
balance,
minBalance: token.min_balance,
readonlyThreshold: token.readonly_threshold || 1,
editorThreshold: token.editor_threshold || 2,
});
}
return results;
}
module.exports = { getUserTokenBalances };