mirror of
https://github.com/kuaifan/dootask.git
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777 lines
23 KiB
PHP
777 lines
23 KiB
PHP
<?php
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namespace App\Module\SeekDB;
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use App\Module\Apps;
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use App\Module\Doo;
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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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/**
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* SeekDB 基础类
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*
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* SeekDB 兼容 MySQL 协议，可以直接使用 PDO 连接
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*/
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class SeekDBBase
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{
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private static ?PDO $pdo = null;
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private static bool $initialized = false;
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private string $host;
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private int $port;
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private string $user;
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private string $pass;
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private string $database;
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/**
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* 构造函数
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*/
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public function __construct()
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{
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$this->host = env('SEEKDB_HOST', 'seekdb');
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$this->port = (int) env('SEEKDB_PORT', 2881);
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$this->user = env('SEEKDB_USER', 'root');
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$this->pass = env('SEEKDB_PASSWORD', '');
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$this->database = env('SEEKDB_DATABASE', 'dootask_search');
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}
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/**
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* 获取 PDO 连接
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*/
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private function getConnection(): ?PDO
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{
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if (!Apps::isInstalled("seekdb")) {
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return null;
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}
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if (self::$pdo === null) {
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try {
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// 先连接不指定数据库，用于初始化
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$dsn = "mysql:host={$this->host};port={$this->port};charset=utf8mb4";
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$pdo = new PDO($dsn, $this->user, $this->pass, [
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PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
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PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
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PDO::ATTR_TIMEOUT => 30,
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]);
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// 初始化数据库和表
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if (!self::$initialized) {
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$this->initializeDatabase($pdo);
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self::$initialized = true;
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}
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// 切换到目标数据库
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$pdo->exec("USE `{$this->database}`");
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self::$pdo = $pdo;
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} catch (PDOException $e) {
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Log::error('SeekDB connection failed: ' . $e->getMessage());
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return null;
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}
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}
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return self::$pdo;
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}
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/**
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* 初始化数据库和表结构
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*/
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private function initializeDatabase(PDO $pdo): void
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{
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try {
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// 创建数据库
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$pdo->exec("CREATE DATABASE IF NOT EXISTS `{$this->database}`");
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$pdo->exec("USE `{$this->database}`");
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// 创建文件向量表
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$pdo->exec("
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CREATE TABLE IF NOT EXISTS file_vectors (
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id BIGINT PRIMARY KEY AUTO_INCREMENT,
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file_id BIGINT NOT NULL,
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userid BIGINT NOT NULL,
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pshare BIGINT NOT NULL DEFAULT 0,
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file_name VARCHAR(500),
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file_type VARCHAR(50),
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file_ext VARCHAR(20),
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content LONGTEXT,
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content_vector VECTOR(1536),
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created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
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updated_at DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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UNIQUE KEY uk_file_id (file_id),
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KEY idx_userid (userid),
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KEY idx_pshare (pshare),
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FULLTEXT KEY ft_content (file_name, content)
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)
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");
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// 创建键值存储表
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$pdo->exec("
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CREATE TABLE IF NOT EXISTS key_values (
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k VARCHAR(255) PRIMARY KEY,
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v TEXT,
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updated_at DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
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)
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");
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// 创建文件用户关系表（用于权限过滤）
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$pdo->exec("
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CREATE TABLE IF NOT EXISTS file_users (
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id BIGINT PRIMARY KEY AUTO_INCREMENT,
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file_id BIGINT NOT NULL,
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userid BIGINT NOT NULL,
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permission TINYINT DEFAULT 0,
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created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
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updated_at DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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UNIQUE KEY uk_file_user (file_id, userid),
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KEY idx_userid (userid),
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KEY idx_file_id (file_id)
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)
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");
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Log::info('SeekDB database initialized successfully');
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} catch (PDOException $e) {
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Log::warning('SeekDB initialization warning: ' . $e->getMessage());
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// 不抛出异常，表可能已存在
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}
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}
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/**
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* 重置连接（在长连接环境中使用）
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*/
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public static function resetConnection(): void
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{
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self::$pdo = null;
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self::$initialized = false;
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}
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/**
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* 检查是否已安装
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*/
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public static function isInstalled(): bool
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{
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return Apps::isInstalled("seekdb");
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}
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/**
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* 执行 SQL（不返回结果）
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*
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* @param string $sql SQL语句
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* @param array $params 参数
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* @return bool 是否成功
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*/
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public function execute(string $sql, array $params = []): bool
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{
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$pdo = $this->getConnection();
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if (!$pdo) {
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return false;
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}
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try {
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$stmt = $pdo->prepare($sql);
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return $stmt->execute($params);
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} catch (PDOException $e) {
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Log::error('SeekDB execute error: ' . $e->getMessage(), [
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'sql' => $sql,
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'params' => $params
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]);
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return false;
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}
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}
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/**
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* 执行 SQL 并返回影响行数
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*
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* @param string $sql SQL语句
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* @param array $params 参数
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* @return int 影响行数，-1 表示失败
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*/
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public function executeWithRowCount(string $sql, array $params = []): int
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{
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$pdo = $this->getConnection();
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if (!$pdo) {
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return -1;
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}
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try {
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$stmt = $pdo->prepare($sql);
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$stmt->execute($params);
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return $stmt->rowCount();
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} catch (PDOException $e) {
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Log::error('SeekDB execute error: ' . $e->getMessage(), [
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'sql' => $sql,
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'params' => $params
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]);
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return -1;
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}
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}
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/**
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* 查询并返回结果
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*
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* @param string $sql SQL语句
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* @param array $params 参数
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* @return array 查询结果
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*/
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public function query(string $sql, array $params = []): array
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{
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$pdo = $this->getConnection();
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if (!$pdo) {
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return [];
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}
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try {
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$stmt = $pdo->prepare($sql);
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$stmt->execute($params);
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return $stmt->fetchAll();
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} catch (PDOException $e) {
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Log::error('SeekDB query error: ' . $e->getMessage(), [
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'sql' => $sql,
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'params' => $params
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]);
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return [];
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}
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}
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/**
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* 查询单行
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*
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* @param string $sql SQL语句
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* @param array $params 参数
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* @return array|null 单行结果
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*/
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public function queryOne(string $sql, array $params = []): ?array
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{
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$pdo = $this->getConnection();
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if (!$pdo) {
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return null;
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}
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try {
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$stmt = $pdo->prepare($sql);
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$stmt->execute($params);
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$result = $stmt->fetch();
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return $result ?: null;
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} catch (PDOException $e) {
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Log::error('SeekDB queryOne error: ' . $e->getMessage(), [
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'sql' => $sql,
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'params' => $params
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]);
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return null;
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}
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}
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/**
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* 获取最后插入的 ID
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*/
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public function lastInsertId(): ?int
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{
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$pdo = $this->getConnection();
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if (!$pdo) {
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return null;
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}
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try {
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return (int) $pdo->lastInsertId();
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} catch (PDOException $e) {
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return null;
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}
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}
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// ==============================
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// 静态便捷方法
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// ==============================
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/**
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* 全文搜索
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*
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* @param string $keyword 关键词
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* @param int $userid 用户ID（0表示不限制权限）
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* @param int $limit 返回数量
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* @param int $offset 偏移量
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* @return array 搜索结果
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*/
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public static function fullTextSearch(string $keyword, int $userid = 0, int $limit = 20, int $offset = 0): array
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{
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if (empty($keyword)) {
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return [];
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}
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$instance = new self();
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$likeKeyword = "%{$keyword}%";
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// 构建 SQL - 同时搜索文件名和内容
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// 权限过滤通过 JOIN file_users 表实现
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if ($userid > 0) {
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// 用户可以看到：1) 自己的文件 2) 共享给自己或公开的文件
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// 注意：pshare 指向共享根文件夹的 ID，file_users 存储的是共享文件夹的权限关系
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$sql = "
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SELECT DISTINCT
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fv.file_id,
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fv.userid,
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fv.file_name,
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fv.file_type,
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fv.file_ext,
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SUBSTRING(fv.content, 1, 500) as content_preview,
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(
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CASE WHEN fv.file_name LIKE ? THEN 10 ELSE 0 END +
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IFNULL(MATCH(fv.content) AGAINST(? IN NATURAL LANGUAGE MODE), 0)
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) AS relevance
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FROM file_vectors fv
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LEFT JOIN file_users fu ON fv.pshare = fu.file_id AND fv.pshare > 0
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WHERE (fv.file_name LIKE ? OR MATCH(fv.content) AGAINST(? IN NATURAL LANGUAGE MODE))
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AND (fv.userid = ? OR fu.userid IN (0, ?))
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ORDER BY relevance DESC
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LIMIT " . (int)$limit . " OFFSET " . (int)$offset;
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$params = [$likeKeyword, $keyword, $likeKeyword, $keyword, $userid, $userid];
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} else {
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// 不限制权限（管理员或后台）
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$sql = "
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SELECT
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file_id,
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userid,
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file_name,
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file_type,
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file_ext,
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SUBSTRING(content, 1, 500) as content_preview,
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(
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CASE WHEN file_name LIKE ? THEN 10 ELSE 0 END +
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IFNULL(MATCH(content) AGAINST(? IN NATURAL LANGUAGE MODE), 0)
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) AS relevance
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FROM file_vectors
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WHERE file_name LIKE ? OR MATCH(content) AGAINST(? IN NATURAL LANGUAGE MODE)
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ORDER BY relevance DESC
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LIMIT " . (int)$limit . " OFFSET " . (int)$offset;
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$params = [$likeKeyword, $keyword, $likeKeyword, $keyword];
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}
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return $instance->query($sql, $params);
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}
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/**
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* 向量相似度搜索
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*
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* @param array $queryVector 查询向量
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* @param int $userid 用户ID（0表示不限制权限）
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* @param int $limit 返回数量
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* @return array 搜索结果
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*/
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public static function vectorSearch(array $queryVector, int $userid = 0, int $limit = 20): array
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{
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if (empty($queryVector)) {
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return [];
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}
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$instance = new self();
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$vectorStr = '[' . implode(',', $queryVector) . ']';
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if ($userid > 0) {
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// 权限过滤：pshare 指向共享根文件夹的 ID
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$sql = "
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SELECT DISTINCT
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fv.file_id,
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fv.userid,
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fv.file_name,
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fv.file_type,
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fv.file_ext,
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SUBSTRING(fv.content, 1, 500) as content_preview,
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COSINE_SIMILARITY(fv.content_vector, ?) AS similarity
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FROM file_vectors fv
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LEFT JOIN file_users fu ON fv.pshare = fu.file_id AND fv.pshare > 0
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WHERE fv.content_vector IS NOT NULL
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AND (fv.userid = ? OR fu.userid IN (0, ?))
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ORDER BY similarity DESC
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LIMIT " . (int)$limit;
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$params = [$vectorStr, $userid, $userid];
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} else {
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// 不限制权限
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$sql = "
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SELECT
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file_id,
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userid,
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file_name,
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file_type,
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file_ext,
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SUBSTRING(content, 1, 500) as content_preview,
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COSINE_SIMILARITY(content_vector, ?) AS similarity
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FROM file_vectors
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WHERE content_vector IS NOT NULL
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ORDER BY similarity DESC
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LIMIT " . (int)$limit;
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$params = [$vectorStr];
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}
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return $instance->query($sql, $params);
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}
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/**
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* 混合搜索（全文 + 向量，使用 RRF 融合）
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*
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* @param string $keyword 关键词
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* @param array $queryVector 查询向量
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* @param int $userid 用户ID（0表示不限制权限）
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* @param int $limit 返回数量
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* @param float $textWeight 全文搜索权重
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* @param float $vectorWeight 向量搜索权重
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* @return array 搜索结果
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*/
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public static function hybridSearch(
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string $keyword,
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array $queryVector,
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int $userid = 0,
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int $limit = 20,
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float $textWeight = 0.5,
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float $vectorWeight = 0.5
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): array {
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// 分别执行两种搜索（权限过滤在各自方法内通过 JOIN 实现）
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$textResults = self::fullTextSearch($keyword, $userid, 50, 0);
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$vectorResults = !empty($queryVector)
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? self::vectorSearch($queryVector, $userid, 50)
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: [];
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// 使用 RRF (Reciprocal Rank Fusion) 融合结果
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$scores = [];
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$items = [];
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$k = 60; // RRF 常数
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// 处理全文搜索结果
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foreach ($textResults as $rank => $item) {
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$fileId = $item['file_id'];
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$scores[$fileId] = ($scores[$fileId] ?? 0) + $textWeight / ($k + $rank + 1);
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$items[$fileId] = $item;
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}
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// 处理向量搜索结果
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foreach ($vectorResults as $rank => $item) {
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$fileId = $item['file_id'];
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$scores[$fileId] = ($scores[$fileId] ?? 0) + $vectorWeight / ($k + $rank + 1);
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if (!isset($items[$fileId])) {
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$items[$fileId] = $item;
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}
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}
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// 按融合分数排序
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arsort($scores);
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// 构建最终结果
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$results = [];
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$count = 0;
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foreach ($scores as $fileId => $score) {
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if ($count >= $limit) {
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break;
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}
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$item = $items[$fileId];
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$item['rrf_score'] = $score;
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$results[] = $item;
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$count++;
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}
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return $results;
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}
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/**
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* 插入或更新文件向量
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*
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* @param array $data 文件数据
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* @return bool 是否成功
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*/
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public static function upsertFileVector(array $data): bool
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{
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$instance = new self();
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$fileId = $data['file_id'] ?? 0;
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if ($fileId <= 0) {
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return false;
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}
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// 检查是否存在
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$existing = $instance->queryOne(
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"SELECT id FROM file_vectors WHERE file_id = ?",
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[$fileId]
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);
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if ($existing) {
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// 更新
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$sql = "UPDATE file_vectors SET
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userid = ?,
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pshare = ?,
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file_name = ?,
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file_type = ?,
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file_ext = ?,
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content = ?,
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content_vector = ?,
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updated_at = NOW()
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WHERE file_id = ?";
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$params = [
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$data['userid'] ?? 0,
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$data['pshare'] ?? 0,
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$data['file_name'] ?? '',
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$data['file_type'] ?? '',
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$data['file_ext'] ?? '',
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$data['content'] ?? '',
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$data['content_vector'] ?? null,
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$fileId
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];
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} else {
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// 插入
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$sql = "INSERT INTO file_vectors
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(file_id, userid, pshare, file_name, file_type, file_ext, content, content_vector, created_at, updated_at)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, NOW(), NOW())";
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$params = [
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$fileId,
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$data['userid'] ?? 0,
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$data['pshare'] ?? 0,
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$data['file_name'] ?? '',
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$data['file_type'] ?? '',
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$data['file_ext'] ?? '',
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$data['content'] ?? '',
|
||
$data['content_vector'] ?? null
|
||
];
|
||
}
|
||
|
||
return $instance->execute($sql, $params);
|
||
}
|
||
|
||
/**
|
||
* 删除文件向量
|
||
*
|
||
* @param int $fileId 文件ID
|
||
* @return bool 是否成功
|
||
*/
|
||
public static function deleteFileVector(int $fileId): bool
|
||
{
|
||
if ($fileId <= 0) {
|
||
return false;
|
||
}
|
||
|
||
$instance = new self();
|
||
return $instance->execute(
|
||
"DELETE FROM file_vectors WHERE file_id = ?",
|
||
[$fileId]
|
||
);
|
||
}
|
||
|
||
/**
|
||
* 批量删除文件向量
|
||
*
|
||
* @param array $fileIds 文件ID列表
|
||
* @return int 删除数量
|
||
*/
|
||
public static function batchDeleteFileVectors(array $fileIds): int
|
||
{
|
||
if (empty($fileIds)) {
|
||
return 0;
|
||
}
|
||
|
||
$instance = new self();
|
||
$placeholders = implode(',', array_fill(0, count($fileIds), '?'));
|
||
|
||
return $instance->executeWithRowCount(
|
||
"DELETE FROM file_vectors WHERE file_id IN ({$placeholders})",
|
||
$fileIds
|
||
);
|
||
}
|
||
|
||
/**
|
||
* 批量更新文件的 pshare 值
|
||
*
|
||
* @param array $fileIds 文件ID列表
|
||
* @param int $pshare 新的 pshare 值
|
||
* @return int 更新数量
|
||
*/
|
||
public static function batchUpdatePshare(array $fileIds, int $pshare): int
|
||
{
|
||
if (empty($fileIds)) {
|
||
return 0;
|
||
}
|
||
|
||
$instance = new self();
|
||
$placeholders = implode(',', array_fill(0, count($fileIds), '?'));
|
||
$params = array_merge([$pshare], $fileIds);
|
||
|
||
return $instance->executeWithRowCount(
|
||
"UPDATE file_vectors SET pshare = ?, updated_at = NOW() WHERE file_id IN ({$placeholders})",
|
||
$params
|
||
);
|
||
}
|
||
|
||
/**
|
||
* 清空所有文件向量
|
||
*
|
||
* @return bool 是否成功
|
||
*/
|
||
public static function clearAllFileVectors(): bool
|
||
{
|
||
$instance = new self();
|
||
return $instance->execute("TRUNCATE TABLE file_vectors");
|
||
}
|
||
|
||
/**
|
||
* 获取已索引的文件数量
|
||
*
|
||
* @return int 文件数量
|
||
*/
|
||
public static function getIndexedFileCount(): int
|
||
{
|
||
$instance = new self();
|
||
$result = $instance->queryOne("SELECT COUNT(*) as cnt FROM file_vectors");
|
||
return $result ? (int) $result['cnt'] : 0;
|
||
}
|
||
|
||
/**
|
||
* 获取最后索引的文件ID
|
||
*
|
||
* @return int 文件ID
|
||
*/
|
||
public static function getLastIndexedFileId(): int
|
||
{
|
||
$instance = new self();
|
||
$result = $instance->queryOne("SELECT MAX(file_id) as max_id FROM file_vectors");
|
||
return $result ? (int) ($result['max_id'] ?? 0) : 0;
|
||
}
|
||
|
||
// ==============================
|
||
// 文件用户关系方法
|
||
// ==============================
|
||
|
||
/**
|
||
* 插入或更新文件用户关系
|
||
*
|
||
* @param int $fileId 文件ID
|
||
* @param int $userid 用户ID（0表示公开）
|
||
* @param int $permission 权限（0只读，1读写）
|
||
* @return bool 是否成功
|
||
*/
|
||
public static function upsertFileUser(int $fileId, int $userid, int $permission = 0): bool
|
||
{
|
||
if ($fileId <= 0) {
|
||
return false;
|
||
}
|
||
|
||
$instance = new self();
|
||
|
||
// 检查是否存在
|
||
$existing = $instance->queryOne(
|
||
"SELECT id FROM file_users WHERE file_id = ? AND userid = ?",
|
||
[$fileId, $userid]
|
||
);
|
||
|
||
if ($existing) {
|
||
// 更新
|
||
return $instance->execute(
|
||
"UPDATE file_users SET permission = ?, updated_at = NOW() WHERE file_id = ? AND userid = ?",
|
||
[$permission, $fileId, $userid]
|
||
);
|
||
} else {
|
||
// 插入
|
||
return $instance->execute(
|
||
"INSERT INTO file_users (file_id, userid, permission) VALUES (?, ?, ?)",
|
||
[$fileId, $userid, $permission]
|
||
);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 批量同步文件用户关系（替换指定文件的所有关系）
|
||
*
|
||
* @param int $fileId 文件ID
|
||
* @param array $users 用户列表 [['userid' => int, 'permission' => int], ...]
|
||
* @return bool 是否成功
|
||
*/
|
||
public static function syncFileUsers(int $fileId, array $users): bool
|
||
{
|
||
if ($fileId <= 0) {
|
||
return false;
|
||
}
|
||
|
||
$instance = new self();
|
||
|
||
try {
|
||
// 删除旧关系
|
||
$instance->execute("DELETE FROM file_users WHERE file_id = ?", [$fileId]);
|
||
|
||
// 插入新关系
|
||
foreach ($users as $user) {
|
||
$userid = (int)($user['userid'] ?? 0);
|
||
$permission = (int)($user['permission'] ?? 0);
|
||
$instance->execute(
|
||
"INSERT INTO file_users (file_id, userid, permission) VALUES (?, ?, ?)",
|
||
[$fileId, $userid, $permission]
|
||
);
|
||
}
|
||
|
||
return true;
|
||
} catch (\Exception $e) {
|
||
Log::error('SeekDB syncFileUsers error: ' . $e->getMessage());
|
||
return false;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 删除文件的所有用户关系
|
||
*
|
||
* @param int $fileId 文件ID
|
||
* @return bool 是否成功
|
||
*/
|
||
public static function deleteFileUsers(int $fileId): bool
|
||
{
|
||
if ($fileId <= 0) {
|
||
return false;
|
||
}
|
||
|
||
$instance = new self();
|
||
return $instance->execute("DELETE FROM file_users WHERE file_id = ?", [$fileId]);
|
||
}
|
||
|
||
/**
|
||
* 删除指定文件和用户的关系
|
||
*
|
||
* @param int $fileId 文件ID
|
||
* @param int $userid 用户ID
|
||
* @return bool 是否成功
|
||
*/
|
||
public static function deleteFileUser(int $fileId, int $userid): bool
|
||
{
|
||
if ($fileId <= 0) {
|
||
return false;
|
||
}
|
||
|
||
$instance = new self();
|
||
return $instance->execute(
|
||
"DELETE FROM file_users WHERE file_id = ? AND userid = ?",
|
||
[$fileId, $userid]
|
||
);
|
||
}
|
||
|
||
/**
|
||
* 获取文件用户关系数量
|
||
*
|
||
* @return int 关系数量
|
||
*/
|
||
public static function getFileUserCount(): int
|
||
{
|
||
$instance = new self();
|
||
$result = $instance->queryOne("SELECT COUNT(*) as cnt FROM file_users");
|
||
return $result ? (int) $result['cnt'] : 0;
|
||
}
|
||
|
||
/**
|
||
* 清空所有文件用户关系
|
||
*
|
||
* @return bool 是否成功
|
||
*/
|
||
public static function clearAllFileUsers(): bool
|
||
{
|
||
$instance = new self();
|
||
return $instance->execute("TRUNCATE TABLE file_users");
|
||
}
|
||
}
|
||
|