camper/pkg/form/file.go

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/*
* SPDX-FileCopyrightText: 2023 jordi fita mas <jfita@peritasoft.com>
* SPDX-License-Identifier: AGPL-3.0-only
*/
package form
import (
"bufio"
"errors"
"io"
"mime/multipart"
"net/http"
)
type File struct {
Name string
MaxSize int64
Val string
Error error
ContentType string
file multipart.File
header *multipart.FileHeader
buffer *bufio.Reader
}
func (f *File) setError(err error) {
f.Error = err
}
func (f *File) FillValue(r *http.Request) error {
var err error
f.file, f.header, err = r.FormFile(f.Name)
if err != nil {
if errors.Is(err, http.ErrMissingFile) {
return nil
}
return err
}
f.buffer = bufio.NewReader(f.file)
sniff, _ := f.buffer.Peek(512)
f.ContentType = http.DetectContentType(sniff)
return nil
}
func (f *File) Close() error {
if !f.HasData() {
return nil
}
return f.file.Close()
}
func (f *File) HasData() bool {
return f.file != nil
}
func (f *File) Read(p []byte) (int, error) {
return f.buffer.Read(p)
}
func (f *File) WriteTo(w io.Writer) (int64, error) {
return f.buffer.WriteTo(w)
}