26c350f378
feat: 🚀 增强会话管理与缓存机制 * 会话 ID 空值兜底，若 `conversation_id` 为空时自动生成 UUID * 在响应头写入 `X-Conversation-ID`，供前端使用，保持同一会话状态 perf: ⚡ 会话状态缓存优化 * 当缓存未命中但 DB 已确认/创建会话后，调用 `SetConversationStatus` 回写 Redis * 缓存写回失败时记录日志，不中断聊天主流程，确保业务流畅性 fix: 🐛 修复历史消息顺序问题与编译错误 * 修复历史消息顺序问题，保证返回的 N 条历史消息按时间正序喂给模型 * 通过反转 `created_at desc` 查询结果的切片，确保模型输入顺序正确 * 修复 `fmt.Errorf` 参数不匹配问题，修正编译错误 * 整理 `agent-cache.go` 为标准 UTF-8 编码，避免 Go 编译报错 `invalid UTF-8 encoding` feat: 🛠️ 独立构建 MCP 服务器 * 使用 `Codex` 构建独立于后端的 MCP 服务器，简化与 Codex 的协作 * 通过该服务器方便 Codex 直接测试和查看 Redis 与 MySQL 中的数据
96 lines
2.3 KiB
Go
96 lines
2.3 KiB
Go
package tools
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import (
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"context"
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"fmt"
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"github.com/LoveLosita/smartflow/infra/smartflow-mcp-server/internal/security"
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"github.com/LoveLosita/smartflow/infra/smartflow-mcp-server/internal/store"
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)
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type MySQLReadOnlyTool struct {
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client *store.MySQLClient
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validator *security.SQLValidator
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maxRows int
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}
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func NewMySQLReadOnlyTool(client *store.MySQLClient, validator *security.SQLValidator, maxRows int) *MySQLReadOnlyTool {
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return &MySQLReadOnlyTool{client: client, validator: validator, maxRows: maxRows}
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}
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func (t *MySQLReadOnlyTool) Name() string {
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return "mysql_query_readonly"
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}
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func (t *MySQLReadOnlyTool) Description() string {
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return "Execute read-only SQL on MySQL. Only SELECT/SHOW/DESCRIBE/EXPLAIN are allowed."
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}
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func (t *MySQLReadOnlyTool) InputSchema() map[string]any {
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return map[string]any{
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"type": "object",
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"properties": map[string]any{
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"sql": map[string]any{
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"type": "string",
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"description": "Read-only SQL statement",
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},
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"params": map[string]any{
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"type": "array",
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"description": "Optional bind parameters",
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"items": map[string]any{
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"type": []string{"string", "number", "boolean", "null"},
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},
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},
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},
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"required": []string{"sql"},
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"additionalProperties": false,
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}
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}
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func (t *MySQLReadOnlyTool) Execute(ctx context.Context, args map[string]any) (map[string]any, error) {
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rawSQL, ok := args["sql"].(string)
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if !ok || rawSQL == "" {
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return nil, fmt.Errorf("sql must be a non-empty string")
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}
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if err := t.validator.ValidateReadOnlySQL(rawSQL); err != nil {
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return nil, err
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}
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params, err := normalizeParams(args["params"])
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if err != nil {
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return nil, err
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}
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res, err := t.client.QueryReadOnly(ctx, rawSQL, params, t.maxRows)
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if err != nil {
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return nil, err
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}
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return map[string]any{
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"columns": res.Columns,
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"rows": res.Rows,
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"rowCount": res.RowCount,
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"truncated": res.Truncated,
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"durationMs": res.DurationMs,
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}, nil
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}
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func normalizeParams(raw any) ([]any, error) {
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if raw == nil {
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return nil, nil
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}
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arr, ok := raw.([]any)
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if !ok {
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return nil, fmt.Errorf("params must be an array")
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}
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out := make([]any, 0, len(arr))
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for _, item := range arr {
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switch v := item.(type) {
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case string, float64, bool, nil:
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out = append(out, v)
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default:
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return nil, fmt.Errorf("params contains unsupported type")
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}
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}
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return out, nil
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}
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