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feat: fix upload file

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This commit is contained in:
Rogee
2025-01-17 15:48:53 +08:00
parent b5583bb34a
commit 5b511a5ea1
5 changed files with 99 additions and 76 deletions
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17
backend/app/http/medias/controller.go
View File

@@ -33,17 +33,22 @@ func (ctl *Controller) Prepare() error {
// @Bind file file
// @Bind claim local
func (ctl *Controller) Upload(ctx fiber.Ctx, claim *jwt.Claims, file *multipart.FileHeader, req *UploadReq) (*storage.UploadedFile, error) {
defaultStorage, err := ctl.storageSvc.GetDefault(ctx.Context())
if err != nil {
return nil, err
}
uploader, err := storage.NewUploader(req.FileName, req.ChunkNumber, req.TotalChunks, req.FileMD5)
if err != nil {
return nil, err
}
uploadedFile, err := uploader.Save(ctx, file)
defaultStorage, err := ctl.storageSvc.GetDefault(ctx.Context())
if err != nil {
return nil, err
}
fs, err := ctl.storageSvc.BuildFS(defaultStorage)
if err != nil {
return nil, err
}
uploadedFile, err := uploader.Save(ctx, fs, file)
if err != nil {
return nil, err
}

108
backend/pkg/storage/upload.go
View File

@@ -1,6 +1,7 @@
package storage
import (
"bytes"
"crypto/md5"
"encoding/hex"
"errors"
@@ -12,6 +13,7 @@ import (
"time"
"github.com/gofiber/fiber/v3"
"github.com/spf13/afero"
)
type Uploader struct {
@@ -22,7 +24,6 @@ type Uploader struct {
totalChunks int
fileMD5 string
dst string
ext string
finalPath string
}
@@ -52,49 +53,27 @@ func NewUploader(fileName string, chunkNumber, totalChunks int, fileMD5 string)
totalChunks: totalChunks,
fileMD5: fileMD5,
ext: filepath.Ext(fileName),
finalPath: filepath.Join(os.TempDir(), fileMD5+filepath.Ext(fileName)),
finalPath: filepath.Join("uploads", time.Now().Format("2006/01/02"), fileMD5+filepath.Ext(fileName)),
}, nil
}
func (up *Uploader) Save(ctx fiber.Ctx, file *multipart.FileHeader) (*UploadedFile, error) {
func (up *Uploader) Save(ctx fiber.Ctx, fs afero.Fs, file *multipart.FileHeader) (*UploadedFile, error) {
if up.chunkNumber != up.totalChunks-1 {
return nil, ctx.SaveFile(file, up.chunkPath)
}
defer os.RemoveAll(up.tmpDir)
// 如果是最后一个分片
// 生成唯一的文件存储路径
storageDir := filepath.Join(up.dst, time.Now().Format("2006/01/02"))
if err := os.MkdirAll(storageDir, 0o755); err != nil {
os.RemoveAll(filepath.Join(os.TempDir(), up.fileMD5))
return nil, err
}
// 计算所有分片的实际大小总和
totalSize, err := calculateTotalSize(up.tmpDir, up.totalChunks)
if err != nil {
os.RemoveAll(up.tmpDir)
return nil, fmt.Errorf("计算文件大小失败: %w", err)
}
// 合并文件
if err := combineChunks(up.tmpDir, up.finalPath, up.totalChunks); err != nil {
os.RemoveAll(up.tmpDir)
totalSize, err := up.combineChunks(fs)
if err != nil {
return nil, fmt.Errorf("合并文件失败: %w", err)
}
// 验证MD5
calculatedMD5, err := calculateFileMD5(up.finalPath)
if err != nil || calculatedMD5 != up.fileMD5 {
os.RemoveAll(up.tmpDir)
os.Remove(up.finalPath)
return nil, errors.New("文件MD5验证失败")
}
// 清理临时目录
os.RemoveAll(up.tmpDir)
return &UploadedFile{
Hash: calculatedMD5,
Hash: up.fileMD5,
Name: up.fileName,
Path: up.finalPath,
Size: totalSize,
@@ -102,52 +81,41 @@ func (up *Uploader) Save(ctx fiber.Ctx, file *multipart.FileHeader) (*UploadedFi
}, nil
}
// 计算所有分片的实际大小总和
func calculateTotalSize(tempDir string, totalChunks int) (int64, error) {
var totalSize int64
for i := 0; i < totalChunks; i++ {
chunkPath := filepath.Join(tempDir, fmt.Sprintf("chunk_%d", i))
info, err := os.Stat(chunkPath)
func (up *Uploader) combineChunks(fs afero.Fs) (int64, error) {
if err := fs.MkdirAll(filepath.Dir(up.finalPath), os.ModePerm); err != nil {
return 0, err
}
f, err := fs.Create(up.finalPath)
if err != nil {
return 0, err
}
totalSize += info.Size()
}
return totalSize, nil
}
func combineChunks(tempDir, finalPath string, totalChunks int) error {
finalFile, err := os.Create(finalPath)
if err != nil {
return err
}
defer finalFile.Close()
for i := 0; i < totalChunks; i++ {
chunkPath := fmt.Sprintf("%s/chunk_%d", tempDir, i)
chunk, err := os.ReadFile(chunkPath)
if err != nil {
return err
}
if _, err := finalFile.Write(chunk); err != nil {
return err
}
}
return nil
}
func calculateFileMD5(filePath string) (string, error) {
file, err := os.Open(filePath)
if err != nil {
return "", err
}
defer file.Close()
defer f.Close()
hash := md5.New()
if _, err := io.Copy(hash, file); err != nil {
return "", err
size := int64(0)
for i := 0; i < up.totalChunks; i++ {
chunkPath := fmt.Sprintf("%s/chunk_%d", up.tmpDir, i)
chunk, err := os.ReadFile(chunkPath)
if err != nil {
return 0, err
}
size += int64(len(chunk))
if _, err := f.Write(chunk); err != nil {
return 0, err
}
return hex.EncodeToString(hash.Sum(nil)), nil
if _, err := io.Copy(hash, bytes.NewBuffer(chunk)); err != nil {
return 0, err
}
}
md5 := hex.EncodeToString(hash.Sum(nil))
if md5 != up.fileMD5 {
return 0, errors.New("文件MD5验证失败")
}
return size, nil
}

10
test/go.mod
View File

@@ -2,12 +2,20 @@ module test
go 1.23.2
require github.com/go-jet/jet/v2 v2.12.0
require (
github.com/go-jet/jet/v2 v2.12.0
github.com/smartystreets/goconvey v1.8.1
github.com/spf13/afero v1.12.0
)
require (
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/google/uuid v1.6.0 // indirect
github.com/gopherjs/gopherjs v1.17.2 // indirect
github.com/jtolds/gls v4.20.0+incompatible // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/smarty/assertions v1.15.0 // indirect
github.com/stretchr/testify v1.9.0 // indirect
golang.org/x/text v0.21.0 // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
)

12
test/go.sum
View File

@@ -6,10 +6,22 @@ github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gopherjs/gopherjs v1.17.2 h1:fQnZVsXk8uxXIStYb0N4bGk7jeyTalG/wsZjQ25dO0g=
github.com/gopherjs/gopherjs v1.17.2/go.mod h1:pRRIvn/QzFLrKfvEz3qUuEhtE/zLCWfreZ6J5gM2i+k=
github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7C0MuV77Wo=
github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/smarty/assertions v1.15.0 h1:cR//PqUBUiQRakZWqBiFFQ9wb8emQGDb0HeGdqGByCY=
github.com/smarty/assertions v1.15.0/go.mod h1:yABtdzeQs6l1brC900WlRNwj6ZR55d7B+E8C6HtKdec=
github.com/smartystreets/goconvey v1.8.1 h1:qGjIddxOk4grTu9JPOU31tVfq3cNdBlNa5sSznIX1xY=
github.com/smartystreets/goconvey v1.8.1/go.mod h1:+/u4qLyY6x1jReYOp7GOM2FSt8aP9CzCZL03bI28W60=
github.com/spf13/afero v1.12.0 h1:UcOPyRBYczmFn6yvphxkn9ZEOY65cpwGKb5mL36mrqs=
github.com/spf13/afero v1.12.0/go.mod h1:ZTlWwG4/ahT8W7T0WQ5uYmjI9duaLQGy3Q2OAl4sk/4=
github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
golang.org/x/text v0.21.0 h1:zyQAAkrwaneQ066sspRyJaG9VNi/YJ1NfzcGB3hZ/qo=
golang.org/x/text v0.21.0/go.mod h1:4IBbMaMmOPCJ8SecivzSH54+73PCFmPWxNTLm+vZkEQ=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

30
test/main_test.go
View File

@@ -1,11 +1,15 @@
package main
import (
"os"
"path/filepath"
"testing"
"test/database/models/qvyun_v2/public/table"
. "github.com/go-jet/jet/v2/postgres"
. "github.com/smartystreets/goconvey/convey"
"github.com/spf13/afero"
)
func Test_Join(t *testing.T) {
@@ -18,3 +22,29 @@ func Test_Join(t *testing.T) {
)
t.Log(stmt.DebugSql())
}
func Test_Afero(t *testing.T) {
Convey("Test afero", t, func() {
fs := afero.NewBasePathFs(afero.NewOsFs(), "/tmp")
path := "test/a/b/c/test.txt"
err := fs.MkdirAll(filepath.Dir(path), os.ModePerm)
So(err, ShouldBeNil)
f, err := fs.OpenFile(path, os.O_CREATE|os.O_RDWR, 0o644)
So(err, ShouldBeNil)
f.Write([]byte("hello "))
f.Write([]byte("world"))
f.Close()
ff, err := fs.Open(path)
So(err, ShouldBeNil)
b := make([]byte, 1024)
n, err := ff.Read(b)
So(err, ShouldBeNil)
So(string(b[:n]), ShouldEqual, "hello world")
})
}