131 lines
3.1 KiB
Go
131 lines
3.1 KiB
Go
package logic
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import (
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"fusenapi/utils/auth"
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"fusenapi/utils/basic"
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"fusenapi/utils/check"
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"fusenapi/utils/format"
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"time"
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"context"
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"fusenapi/server/upload/internal/svc"
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"fusenapi/server/upload/internal/types"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/aws/request"
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"github.com/aws/aws-sdk-go/service/s3"
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"github.com/zeromicro/go-zero/core/logx"
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)
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type UploadFileBackendLogic struct {
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logx.Logger
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ctx context.Context
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svcCtx *svc.ServiceContext
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}
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func NewUploadFileBackendLogic(ctx context.Context, svcCtx *svc.ServiceContext) *UploadFileBackendLogic {
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return &UploadFileBackendLogic{
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Logger: logx.WithContext(ctx),
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ctx: ctx,
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svcCtx: svcCtx,
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}
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}
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// UploadFileBackend 这个函数接收一个文件上传请求和用户信息，处理文件上传，并返回响应
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func (l *UploadFileBackendLogic) UploadFileBackend(req *types.RequestUploadFileBackend, userinfo *auth.UserInfo) (resp *basic.Response) {
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// 返回值必须调用Set重新返回, resp可以空指针调用 resp.SetStatus(basic.CodeOK, data)
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// userinfo 传入值时, 一定不为null
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// 检查用户是否是旁观者，旁观者没有文件上传权限
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if userinfo.IsOnlooker() {
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// 如果是，返回未授权的错误码
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return resp.SetStatus(basic.CodeUnAuth)
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}
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// 定义用户ID和S3键名格式
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var uid int64
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var keytype format.TypeFormatS3KeyName
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// 检查用户是否是游客
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if userinfo.IsGuest() {
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// 如果是，使用游客ID和游客键名格式
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uid = userinfo.GuestId
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keytype = format.TypeS3KeyGuest
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} else {
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// 否则，使用用户ID和用户键名格式
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uid = userinfo.UserId
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keytype = format.TypeS3KeyUser
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}
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// 设置AWS会话的区域
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l.svcCtx.AwsSession.Config.Region = aws.String("us-west-1")
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// 创建新的S3服务实例
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svc := s3.New(l.svcCtx.AwsSession)
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// 检查类别是否合法
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if !check.CheckCategory(req.Category) {
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// 如果不合法，返回类别错误的错误码
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return resp.SetStatus(basic.CodeS3CategoryErr)
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}
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// 定义S3请求和当前时间
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var s3req *request.Request
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now := time.Now()
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// 格式化类别
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category := format.TypeCategory(req.Category)
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// 格式化S3对象键名
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ObjectKey := aws.String(format.FormatS3KeyName(
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keytype,
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uid,
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now,
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l.svcCtx.Config.Env,
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category,
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req.File.Filename,
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))
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// 定义存储桶名称
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var bucketName *string
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// 根据类别选择存储桶
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switch category {
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case format.TCategoryRenderMegre:
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bucketName = basic.TempfileBucketName
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default:
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bucketName = basic.StorageBucketName
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}
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// 创建S3对象存储请求
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s3req, _ = svc.PutObjectRequest(
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&s3.PutObjectInput{
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Bucket: bucketName,
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Key: ObjectKey,
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},
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)
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// 设置请求体为文件数据
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s3req.SetBufferBody(req.File.Data)
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// 发送请求
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err := s3req.Send()
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// 检查是否有错误
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if err != nil {
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// 如果有，打印错误并返回错误码
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logx.Error(err)
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return resp.SetStatus(basic.CodeS3PutObjectRequestErr)
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}
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// 打印请求URL
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logx.Info(s3req.HTTPRequest.URL.String())
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// 返回成功的响应和上传URL
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return resp.SetStatus(basic.CodeOK, map[string]interface{}{
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"upload_url": s3req.HTTPRequest.URL.String(),
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})
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}
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