initial commit

file/internal/logic/deletelogic.go

@@ -0,0 +1,51 @@
+package logic
+
+import (
+	"context"
+	"strings"
+
+	"godemo/file/file"
+	"godemo/file/internal/svc"
+
+	"github.com/minio/minio-go/v7"
+	"github.com/zeromicro/go-zero/core/logx"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+type DeleteLogic struct {
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+	logx.Logger
+}
+
+func NewDeleteLogic(ctx context.Context, svcCtx *svc.ServiceContext) *DeleteLogic {
+	return &DeleteLogic{
+		ctx:    ctx,
+		svcCtx: svcCtx,
+		Logger: logx.WithContext(ctx),
+	}
+}
+
+// 删除文件
+func (l *DeleteLogic) Delete(in *file.DeleteRequest) (*file.DeleteResponse, error) {
+	// 假设 fileId 格式为: "bucketName/objectName"
+	parts := strings.SplitN(in.FileId, "/", 2)
+	if len(parts) != 2 {
+		return nil, status.Error(codes.InvalidArgument, "invalid fileId format")
+	}
+
+	bucketName := parts[0]
+	objectName := parts[1]
+
+	// 删除对象
+	err := l.svcCtx.MinioClient.RemoveObject(l.ctx, bucketName, objectName, minio.RemoveObjectOptions{})
+	if err != nil {
+		// return nil, err
+		return nil, status.Error(codes.Internal, err.Error())
+	}
+
+	return &file.DeleteResponse{
+		Success: true,
+	}, nil
+}

file/internal/logic/getfileurllogic.go

@@ -0,0 +1,57 @@
+package logic
+
+import (
+	"context"
+	"net/url"
+	"strings"
+	"time"
+
+	"godemo/file/file"
+	"godemo/file/internal/svc"
+
+	"github.com/zeromicro/go-zero/core/logx"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+type GetFileUrlLogic struct {
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+	logx.Logger
+}
+
+func NewGetFileUrlLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetFileUrlLogic {
+	return &GetFileUrlLogic{
+		ctx:    ctx,
+		svcCtx: svcCtx,
+		Logger: logx.WithContext(ctx),
+	}
+}
+
+// 获取文件访问链接（带签名，防盗链）
+func (l *GetFileUrlLogic) GetFileUrl(in *file.GetFileUrlRequest) (*file.GetFileUrlResponse, error) {
+	// 假设 fileId 格式为: "bucketName/objectName"
+	parts := strings.SplitN(in.FileId, "/", 2)
+	if len(parts) != 2 {
+		return nil, status.Error(codes.InvalidArgument, "invalid fileId format")
+	}
+
+	bucketName := parts[0]
+	objectName := parts[1]
+
+	// 生成预签名 URL，有效期 1 小时
+	presignedUrl, err := l.svcCtx.MinioClient.PresignedGetObject(
+		l.ctx,
+		bucketName,
+		objectName,
+		time.Hour,
+		url.Values{},
+	)
+	if err != nil {
+		return nil, status.Error(codes.Internal, err.Error())
+	}
+
+	return &file.GetFileUrlResponse{
+		Url: presignedUrl.String(),
+	}, nil
+}

file/internal/logic/uploadlogic.go

@@ -0,0 +1,88 @@
+package logic
+
+import (
+	"bytes"
+	"context"
+	"net/url"
+	"path/filepath"
+	"time"
+
+	"godemo/file/file"
+	"godemo/file/internal/svc"
+
+	"github.com/google/uuid"
+	"github.com/minio/minio-go/v7"
+	"github.com/zeromicro/go-zero/core/logx"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+type UploadLogic struct {
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+	logx.Logger
+}
+
+func NewUploadLogic(ctx context.Context, svcCtx *svc.ServiceContext) *UploadLogic {
+	return &UploadLogic{
+		ctx:    ctx,
+		svcCtx: svcCtx,
+		Logger: logx.WithContext(ctx),
+	}
+}
+
+// 上传文件（图片/头像/壁纸等）
+func (l *UploadLogic) Upload(in *file.UploadRequest) (*file.UploadResponse, error) {
+	bucketName := "default"
+	if in.Folder != "" {
+		bucketName = in.Folder
+	}
+
+	// 确保 bucket 存在（自动创建）
+	exists, err := l.svcCtx.MinioClient.BucketExists(l.ctx, bucketName)
+	if err != nil {
+		return nil, status.Error(codes.Internal, err.Error())
+	}
+	if !exists {
+		err := l.svcCtx.MinioClient.MakeBucket(l.ctx, bucketName, minio.MakeBucketOptions{})
+		if err != nil {
+			return nil, status.Error(codes.Internal, err.Error())
+		}
+	}
+
+	// 生成唯一文件名
+	ext := getFileExtension(in.Filename)
+	newFileName := uuid.New().String() + ext
+
+	// 上传对象
+	_, err = l.svcCtx.MinioClient.PutObject(l.ctx, bucketName, newFileName,
+		bytes.NewReader(in.Content),
+		int64(len(in.Content)),
+		minio.PutObjectOptions{
+			ContentType: in.ContentType,
+		})
+	if err != nil {
+		return nil, status.Error(codes.Internal, err.Error())
+	}
+
+	// 生成预签名 URL（有效期1小时）
+	reqParams := make(url.Values)
+	presignedUrl, err := l.svcCtx.MinioClient.PresignedGetObject(l.ctx, bucketName, newFileName, time.Hour, reqParams)
+	if err != nil {
+		return nil, status.Error(codes.Internal, err.Error())
+	}
+
+	return &file.UploadResponse{
+		FileId: newFileName,
+		Url:    presignedUrl.String(),
+	}, nil
+}
+
+// 获取文件扩展名（默认 .jpg）
+func getFileExtension(name string) string {
+	ext := filepath.Ext(name)
+	if ext == "" {
+		return ".jpg"
+	}
+	return ext
+}