260 lines
6.9 KiB
Go
260 lines
6.9 KiB
Go
package logic
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import (
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"encoding/json"
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"fmt"
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"fusenapi/model/gmodel"
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"fusenapi/utils/auth"
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"fusenapi/utils/basic"
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"fusenapi/utils/hash"
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"io"
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"net/http"
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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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"github.com/zeromicro/go-zero/core/mr"
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)
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type UploadFilesBackendLogic 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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r *http.Request
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}
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func NewUploadFilesBackendLogic(r *http.Request, svcCtx *svc.ServiceContext) *UploadFilesBackendLogic {
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return &UploadFilesBackendLogic{
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Logger: logx.WithContext(r.Context()),
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ctx: r.Context(),
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svcCtx: svcCtx,
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r: r,
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}
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}
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// 处理进入前逻辑w,r
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// func (l *UploadFilesBackendLogic) BeforeLogic(w http.ResponseWriter, r *http.Request) {
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// }
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// 处理逻辑后 w,r 如:重定向, resp 必须重新处理
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// func (l *UploadFilesBackendLogic) AfterLogic(w http.ResponseWriter, r *http.Request, resp *basic.Response) {
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// // httpx.OkJsonCtx(r.Context(), w, resp)
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// }
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func (l *UploadFilesBackendLogic) UploadFilesBackend(req *types.UploadFilesReq, 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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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 userId int64
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var guestId int64
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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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guestId = userinfo.GuestId
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uid = guestId
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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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userId = userinfo.UserId
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uid = userId
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}
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var uploadInfoList []UploadInfo
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err := json.Unmarshal([]byte(req.UploadInfo), &uploadInfoList)
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if err != nil {
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logx.Error(err)
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return resp.SetStatus(basic.CodeFileUploadErr, "file upload err,params Unmarshal failed")
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}
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var fileLen = len(uploadInfoList)
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if fileLen == 0 {
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return resp.SetStatus(basic.CodeFileUploadErr, "file upload err,no files")
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}
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if req.ApiType == 1 && fileLen > 100 {
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return resp.SetStatus(basic.CodeFileUploadErr, "file upload err, files count is beyond the maximum")
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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 req.UploadBucket {
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case 2:
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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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//设置内存大小
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l.r.ParseMultipartForm(32 << 20)
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//获取上传的文件组
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files := l.r.MultipartForm.File["file"]
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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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// 定义S3请求和当前时间
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var s3req *request.Request
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resourceModel := gmodel.NewFsResourceModel(l.svcCtx.MysqlConn)
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result, err := mr.MapReduce(func(source chan<- interface{}) {
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for i, info := range uploadInfoList {
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fileType := files[i].Header.Get("Content-Type")
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// 打开文件
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file, err := files[i].Open()
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if err != nil {
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logx.Error(err)
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}
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defer file.Close()
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// 读取数据流
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ioData, err := io.ReadAll(file)
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if err != nil {
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logx.Error(err)
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}
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// 一系列业务逻辑....验证类型,文件大小
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var hashKey string = hash.JsonHashKey(fmt.Sprintf("%s%d", info.FileKeys, uid))
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source <- UploadData{
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FileKey: info.FileKeys,
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FileType: fileType,
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Metadata: info.Metadata,
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FileData: ioData,
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ApiType: req.ApiType,
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Bucket: bucketName,
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HashKey: hashKey,
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}
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}
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}, func(item interface{}, writer mr.Writer[interface{}], cancel func(error)) {
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uploadDataInfo := item.(UploadData)
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var uploadUrl = UploadUrl{}
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uploadUrl.Key = uploadDataInfo.FileKey
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uploadUrl.ApiType = uploadDataInfo.ApiType
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uploadUrl.ResourceType = uploadDataInfo.FileType
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var resourceId string = uploadDataInfo.HashKey
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// 查询数据库
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resourceInfo, err := resourceModel.FindOneById(l.ctx, resourceId)
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if err == nil && resourceInfo.ResourceId != "" {
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uploadUrl.Status = 1
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uploadUrl.ResourceId = resourceId
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uploadUrl.ResourceUrl = *resourceInfo.ResourceUrl
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} else {
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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: uploadDataInfo.Bucket,
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Key: &uploadDataInfo.HashKey,
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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(uploadDataInfo.FileData)
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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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logx.Error(err)
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uploadUrl.Status = 0
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} else {
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var url = s3req.HTTPRequest.URL.String()
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// 打印请求URL
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logx.Info(url)
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uploadUrl.Status = 1
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uploadUrl.ResourceId = resourceId
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uploadUrl.ResourceUrl = url
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var version string = "0.0.1"
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var nowTime = time.Now()
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_, err = resourceModel.Create(l.ctx, &gmodel.FsResource{
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ResourceId: resourceId,
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UserId: &userId,
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GuestId: &guestId,
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ResourceType: &uploadDataInfo.FileType,
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ResourceUrl: &url,
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Version: &version,
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UploadedAt: &nowTime,
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Metadata: &uploadDataInfo.Metadata,
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ApiType: &uploadDataInfo.ApiType,
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})
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if err != nil {
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logx.Error(err)
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}
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}
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}
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// Notice 这个必须加!
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writer.Write(uploadUrl)
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}, func(pipe <-chan interface{}, writer mr.Writer[interface{}], cancel func(error)) {
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var uploadUrlList = make(map[string][]*UploadUrl)
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var uploadUrlListFail []*UploadUrl
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var uploadUrlListSuccess []*UploadUrl
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for p := range pipe {
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var uploadUrl = p.(UploadUrl)
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if uploadUrl.Status == 1 {
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uploadUrlListSuccess = append(uploadUrlListSuccess, &uploadUrl)
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} else {
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uploadUrlListFail = append(uploadUrlListFail, &uploadUrl)
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}
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}
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// Notice 这个必须加!
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uploadUrlList["success"] = uploadUrlListSuccess
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uploadUrlList["fail"] = uploadUrlListFail
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writer.Write(uploadUrlList)
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})
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if err != nil {
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logx.Error(err)
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}
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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_urls": result,
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})
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}
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type UploadInfo struct {
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FileSize int64 `json:"file_size"` // 上传唯一标识信息
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FileKeys string `json:"file_keys"` // 上传唯一标识信息
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Metadata string `json:"meta_data"` // 上传文件额外信息
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}
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type UploadData struct {
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ApiType int64 `json:"api_type"`
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FileSize int64 `json:"file_size"`
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FileType string `json:"file_type"`
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FileKey string `json:"file_key"`
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Metadata string `json:"metadata"`
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Bucket *string `json:"bucket"`
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HashKey string `json:"hash_key"`
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FileData []byte `fsfile:"data"`
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}
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type UploadUrl struct {
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Key string `json:"key"`
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Status int64 `json:"status"`
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ApiType int64 `json:"api_type"`
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ResourceId string `json:"resource_id"`
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ResourceType string `json:"resource_type"`
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ResourceUrl string `json:"resource_url"`
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}
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