feat: rbac完善，file接入完成

app/file/rpc/internal/logic/checkfilebymd5logic.go

@@ -0,0 +1,57 @@
+package logic
+
+import (
+	"context"
+
+	"errors"
+	"sundynix-micro-go/app/file/model"
+	"sundynix-micro-go/app/file/rpc/file"
+	"sundynix-micro-go/app/file/rpc/internal/svc"
+
+	"github.com/zeromicro/go-zero/core/logx"
+	"gorm.io/gorm"
+)
+
+type CheckFileByMd5Logic struct {
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+	logx.Logger
+}
+
+func NewCheckFileByMd5Logic(ctx context.Context, svcCtx *svc.ServiceContext) *CheckFileByMd5Logic {
+	return &CheckFileByMd5Logic{
+		ctx:    ctx,
+		svcCtx: svcCtx,
+		Logger: logx.WithContext(ctx),
+	}
+}
+
+// 通过MD5检查文件是否存在
+func (l *CheckFileByMd5Logic) CheckFileByMd5(in *file.CheckFileByMd5Req) (*file.CheckFileByMd5Resp, error) {
+	if in.Md5 == "" {
+		return &file.CheckFileByMd5Resp{Exists: false}, nil
+	}
+
+	var ossRecord model.SundynixOss
+	err := l.svcCtx.DB.Where("md5 = ?", in.Md5).First(&ossRecord).Error
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return &file.CheckFileByMd5Resp{Exists: false}, nil
+		}
+		return nil, err
+	}
+
+	return &file.CheckFileByMd5Resp{
+		Exists: true,
+		File: &file.FileInfo{
+			Id:        ossRecord.ID,
+			Name:      ossRecord.Name,
+			Url:       ossRecord.Url,
+			Tag:       ossRecord.Tag,
+			Key:       ossRecord.Key,
+			Suffix:    ossRecord.Suffix,
+			Md5:       ossRecord.MD5,
+			CreatedAt: ossRecord.CreatedAt.Unix(),
+		},
+	}, nil
+}