109 lines
3.5 KiB
PHP
109 lines
3.5 KiB
PHP
<?php
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namespace Modules\EcommerceFinance\Services;
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use PDO;
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use PDOException;
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use Illuminate\Support\Facades\Log;
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use Symfony\Component\HttpKernel\Exception\ServiceUnavailableHttpException;
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/**
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* JianSun SQL Server 数据库连接管理
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* 使用 PDO_ODBC 直连 SQL Server（无需 sqlsrv 扩展）
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*/
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class JianSunConnection
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{
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private static ?PDO $instance = null;
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/**
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* 获取 PDO 连接实例（单例模式）
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*/
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public static function get(): PDO
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{
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if (self::$instance === null) {
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self::$instance = self::create();
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}
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return self::$instance;
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}
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/**
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* 创建新的 PDO 连接
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*/
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public static function create(): PDO
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{
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if (! config('jiansun.enabled')) {
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throw new ServiceUnavailableHttpException(
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60,
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'上游数据同步尚未启用，请联系管理员。'
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);
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}
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$connection = config('jiansun.connection', []);
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$host = trim((string) ($connection['host'] ?? ''));
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$port = (int) ($connection['port'] ?? 1433);
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$db = trim((string) ($connection['database'] ?? ''));
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$user = trim((string) ($connection['username'] ?? ''));
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$pass = (string) ($connection['password'] ?? '');
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$driver = trim((string) ($connection['odbc_driver'] ?? 'FreeTDS'), '{} ');
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$tdsVersion = trim((string) ($connection['tds_version'] ?? '7.4'));
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$connectTimeout = max((int) ($connection['connect_timeout'] ?? 5), 1);
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$queryTimeout = max((int) ($connection['query_timeout'] ?? 15), 1);
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if ($host === '' || $db === '' || $user === '' || $pass === '' || $driver === '') {
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throw new ServiceUnavailableHttpException(
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60,
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'上游数据库配置不完整，请联系管理员。'
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);
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}
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$dsn = sprintf(
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'odbc:Driver={%s};Server=%s;Port=%d;Database=%s;UID=%s;PWD=%s;TDS_Version=%s;ClientCharset=UTF-8;Connect Timeout=%d',
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str_replace('}', '}}', $driver),
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self::quoteOdbcValue($host),
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$port,
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self::quoteOdbcValue($db),
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self::quoteOdbcValue($user),
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self::quoteOdbcValue($pass),
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$tdsVersion,
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$connectTimeout
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);
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try {
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// FreeTDS 的 PDO_ODBC 需要 UID/PWD 位于连接字符串中；异常链不得
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// 携带 DSN，否则日志或调试堆栈可能泄露凭据。
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$pdo = new PDO($dsn, null, null, [
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PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
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PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
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PDO::ATTR_TIMEOUT => $queryTimeout,
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PDO::ATTR_PERSISTENT => false,
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]);
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return $pdo;
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} catch (PDOException $e) {
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Log::warning('JianSun 数据库连接失败。', [
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'sql_state' => (string) $e->getCode(),
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'exception' => $e::class,
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]);
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throw new ServiceUnavailableHttpException(
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60,
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'上游数据库暂时无法连接，请稍后再试。'
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);
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}
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}
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/**
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* 重置连接（用于长时间运行或测试场景）
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*/
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public static function reset(): void
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{
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self::$instance = null;
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}
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private static function quoteOdbcValue(string $value): string
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{
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return '{' . str_replace('}', '}}', $value) . '}';
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}
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}
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