fix(db): log SQL statements at debug level

Move routine GORM SQL output to debug and omit SQL text from slow-query and query-error logs to prevent sensitive parameters from being emitted at production log levels.

config.example.yaml

@@ -31,7 +31,7 @@ database:
   max_open_conn: 128
   conn_max_lifetime: 1800
   conn_max_idle_time: 600
-  log_level: "info"            # error | warn | info | debug | silent
+  log_level: "info"            # error | warn | info | debug | silent；SQL 语句仅在 log.level=debug 时输出
   ssl_mode: "disable"
   time_zone: "UTC"
   application_name: "openflare-server"

docs/changelog/index.md

@@ -35,6 +35,7 @@ sidebar: false
 
 ### 修复
 
+- GORM SQL 语句改为仅在全局 `debug` 日志级别输出；生产默认日志级别不再记录查询文本，慢查询与执行错误也不包含 SQL 参数，避免节点访问令牌等敏感信息写入应用日志。
 - WAF 规则编辑器支持通过按钮或键盘删除普通节点和连线，节点属性栏改为选中节点后按需显示，并修复拖动节点时因 React Flow 初始化状态丢失导致的画面闪烁与 error 015。
 - WAF 规则编辑器新增启用/停用控制，并移除已废弃的规则组侧站点绑定入口；站点规则顺序统一在反代路由详情中管理。
 - 修复 Agent 心跳无法从活动 WAF 运行图发现 IP 组引用的问题，并对发布与同步的完整 IP 组快照增加 20 MiB 聚合容量保护。

internal/db/postgres_logger.go

@@ -53,30 +53,25 @@ func (l *gormZapLogger) Trace(ctx context.Context, begin time.Time, fc func() (s
 	elapsed := time.Since(begin)
 	switch {
 	case err != nil && l.logLevel >= gormLogger.Error && (!errors.Is(err, gorm.ErrRecordNotFound) || !l.ignoreRecordNotFoundError):
-		sql, rows := fc()
-		if rows == -1 {
-			logger.ErrorF(ctx, "%s\n[%.3fms] [rows:%v] %s", err, float64(elapsed.Nanoseconds())/nanoToMilli, "-", sql)
-		} else {
-			logger.ErrorF(ctx, "%s\n[%.3fms] [rows:%v] %s", err, float64(elapsed.Nanoseconds())/nanoToMilli, rows, sql)
-		}
+		_, rows := fc()
+		logger.ErrorF(ctx, "database query failed: %s [%.3fms] [rows:%v]", err, float64(elapsed.Nanoseconds())/nanoToMilli, formatRows(rows))
 	case elapsed > l.slowThreshold && l.slowThreshold != 0 && l.logLevel >= gormLogger.Warn:
-		sql, rows := fc()
+		_, rows := fc()
 		slowLog := fmt.Sprintf("SLOW SQL >= %v", l.slowThreshold)
-		if rows == -1 {
-			logger.WarnF(ctx, "%s\n[%.3fms] [rows:%v] %s", slowLog, float64(elapsed.Nanoseconds())/nanoToMilli, "-", sql)
-		} else {
-			logger.WarnF(ctx, "%s\n[%.3fms] [rows:%v] %s", slowLog, float64(elapsed.Nanoseconds())/nanoToMilli, rows, sql)
-		}
+		logger.WarnF(ctx, "%s [%.3fms] [rows:%v]", slowLog, float64(elapsed.Nanoseconds())/nanoToMilli, formatRows(rows))
 	case l.logLevel == gormLogger.Info:
 		sql, rows := fc()
-		if rows == -1 {
-			logger.InfoF(ctx, "[%.3fms] [rows:%v] %s", float64(elapsed.Nanoseconds())/nanoToMilli, "-", sql)
-		} else {
-			logger.InfoF(ctx, "[%.3fms] [rows:%v] %s", float64(elapsed.Nanoseconds())/nanoToMilli, rows, sql)
-		}
+		logger.DebugF(ctx, "[%.3fms] [rows:%v] %s", float64(elapsed.Nanoseconds())/nanoToMilli, formatRows(rows), sql)
 	}
 }
 
+func formatRows(rows int64) interface{} {
+	if rows == -1 {
+		return "-"
+	}
+	return rows
+}
+
 func parseLogLevel(level string) gormLogger.LogLevel {
 	level = strings.ToLower(level)
 	switch level {
@@ -88,6 +83,8 @@ func parseLogLevel(level string) gormLogger.LogLevel {
 		return gormLogger.Warn
 	case "info":
 		return gormLogger.Info
+	case "debug":
+		return gormLogger.Info
 	default:
 		return gormLogger.Info
 	}

internal/db/postgres_logger_test.go

@@ -0,0 +1,39 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package db
+
+import (
+	"testing"
+
+	gormLogger "gorm.io/gorm/logger"
+)
+
+func TestParseLogLevel(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name            string
+		configuredLevel string
+		want            gormLogger.LogLevel
+	}{
+		{
+			name:            "debug enables SQL trace processing",
+			configuredLevel: "debug",
+			want:            gormLogger.Info,
+		},
+		{
+			name:            "development preserves configured level",
+			configuredLevel: "warn",
+			want:            gormLogger.Warn,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := parseLogLevel(tt.configuredLevel); got != tt.want {
+				t.Fatalf("parseLogLevel() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}