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simplify download function for files

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This commit is contained in:
Sonja Happ 2020-05-12 12:21:37 +02:00
parent cb43c25c27
commit 0e54b7ba33
1 changed files with 8 additions and 12 deletions
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20
routes/file/file_methods.go
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@ -22,12 +22,12 @@
package file package file
import ( import (
"fmt"
"github.com/gin-gonic/gin" "github.com/gin-gonic/gin"
"io/ioutil" "io/ioutil"
"mime/multipart" "mime/multipart"
"os" "net/http"
"path/filepath" "path/filepath"
"strconv"
"time" "time"
"git.rwth-aachen.de/acs/public/villas/web-backend-go/database" "git.rwth-aachen.de/acs/public/villas/web-backend-go/database"
@ -57,20 +57,16 @@ func (f *File) save() error {
func (f *File) download(c *gin.Context) error { func (f *File) download(c *gin.Context) error {
err := ioutil.WriteFile(f.Name, f.FileData, 0644) // create unique file name
if err != nil { filename := "file_" + strconv.FormatUint(uint64(f.ID), 10) + "_" + f.Name
return fmt.Errorf("file could not be temporarily created on server disk: %s", err.Error()) // detect the content type of the file
} contentType := http.DetectContentType(f.FileData)
defer os.Remove(f.Name)
//Seems this headers needed for some browsers (for example without this headers Chrome will download files as txt) //Seems this headers needed for some browsers (for example without this headers Chrome will download files as txt)
c.Header("Content-Description", "File Transfer") c.Header("Content-Description", "File Transfer")
c.Header("Content-Transfer-Encoding", "binary") c.Header("Content-Disposition", "attachment; filename="+filename)
c.Header("Content-Disposition", "attachment; filename="+f.Name) c.Data(http.StatusOK, contentType, f.FileData)
//c.Header("Content-Type", contentType)
c.File(f.Name)
return nil return nil
} }
func (f *File) register(fileHeader *multipart.FileHeader, objectType string, objectID uint) error { func (f *File) register(fileHeader *multipart.FileHeader, objectType string, objectID uint) error {