119 lines
3.1 KiB
Go
119 lines
3.1 KiB
Go
/*
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Copyright (c) [2023] [pcm]
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[pcm-coordinator] is licensed under Mulan PSL v2.
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You can use this software according to the terms and conditions of the Mulan PSL v2.
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You may obtain a copy of Mulan PSL v2 at:
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http://license.coscl.org.cn/MulanPSL2
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THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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EITHER EXPaRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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See the Mulan PSL v2 for more details.
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*/
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package image
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import (
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"bufio"
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"fmt"
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"github.com/zeromicro/go-zero/core/logx"
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"gitlink.org.cn/jcce-pcm/pcm-coordinator/api/internal/svc"
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"gitlink.org.cn/jcce-pcm/pcm-coordinator/pkg/repository/result"
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"gitlink.org.cn/jcce-pcm/pcm-coordinator/pkg/utils/fileutils"
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"io"
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"net/http"
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"os"
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"path/filepath"
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"strconv"
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"syscall"
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)
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type LoadBody struct {
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Stream string `json:"stream"`
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}
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var uploadTempPath = filepath.Join(uploadPath, "temp")
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func UploadHandler(svcCtx *svc.ServiceContext) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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file, fileHeader, err := r.FormFile("file")
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if err != nil {
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logx.Error(err)
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result.HttpResult(r, w, nil, err)
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return
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}
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index := r.PostFormValue("index")
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hash := r.PostFormValue("hash")
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defer file.Close()
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// 合并路径
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chunksPath := filepath.Join(uploadTempPath, hash)
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// 文件路径
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filePath := filepath.Join(chunksPath, hash+"-"+index)
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// 检查临时文件夹是否存在 不存在则创建文件夹
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isPathExists, err := fileutils.PathExists(chunksPath)
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if !isPathExists {
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err = os.MkdirAll(chunksPath, os.ModePerm)
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if err != nil {
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logx.Error(err)
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result.HttpResult(r, w, nil, err)
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return
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}
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}
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// 检查文件是否存在
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exists, err := fileutils.PathExists(filePath)
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if err != nil {
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logx.Error(err)
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result.HttpResult(r, w, nil, err)
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return
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}
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// 文件存在 进行断点续传
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if exists {
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fileInfo, _ := os.Stat(filePath)
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if fileInfo.Size() == fileHeader.Size {
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result.HttpResult(r, w, nil, err)
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return
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}
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start := strconv.Itoa(int(fileInfo.Size()))
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oldFile, _ := os.OpenFile(filePath, os.O_CREATE|os.O_WRONLY, os.ModePerm)
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defer oldFile.Close()
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count, _ := strconv.ParseInt(start, 10, 64)
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fmt.Println("已上传:", count)
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// 设置读，写的偏移量
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file.Seek(count, 0)
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oldFile.Seek(count, 0)
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data := make([]byte, 1024, 1024)
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for {
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total, err := file.Read(data)
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if err == io.EOF {
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fmt.Println("文件复制完毕")
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break
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}
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oldFile.Write(data[:total])
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}
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// 文件不存在 直接上传
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} else {
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destFile, _ := os.OpenFile(filepath.Join(chunksPath, hash+"-"+index), syscall.O_CREAT|syscall.O_WRONLY, 0777)
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reader := bufio.NewReader(file)
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writer := bufio.NewWriter(destFile)
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buf := make([]byte, 1024*1024) // 1M buf
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for {
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n, err := reader.Read(buf)
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if err == io.EOF {
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writer.Flush()
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break
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} else if err != nil {
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return
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} else {
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writer.Write(buf[:n])
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}
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}
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defer file.Close()
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defer destFile.Close()
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}
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result.HttpResult(r, w, nil, err)
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}
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}
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