fiber/binder/form.go

79 lines
1.7 KiB
Go

package binder
import (
"mime/multipart"
"github.com/gofiber/utils/v2"
"github.com/valyala/fasthttp"
)
const MIMEMultipartForm string = "multipart/form-data"
// FormBinding is the form binder for form request body.
type FormBinding struct {
EnableSplitting bool
}
// Name returns the binding name.
func (*FormBinding) Name() string {
return "form"
}
// Bind parses the request body and returns the result.
func (b *FormBinding) Bind(req *fasthttp.Request, out any) error {
data := make(map[string][]string)
var err error
// Handle multipart form
if FilterFlags(utils.UnsafeString(req.Header.ContentType())) == MIMEMultipartForm {
return b.bindMultipart(req, out)
}
req.PostArgs().VisitAll(func(key, val []byte) {
if err != nil {
return
}
k := utils.UnsafeString(key)
v := utils.UnsafeString(val)
err = formatBindData(out, data, k, v, b.EnableSplitting, true)
})
if err != nil {
return err
}
return parse(b.Name(), out, data)
}
// bindMultipart parses the request body and returns the result.
func (b *FormBinding) bindMultipart(req *fasthttp.Request, out any) error {
multipartForm, err := req.MultipartForm()
if err != nil {
return err
}
data := make(map[string][]string)
for key, values := range multipartForm.Value {
err = formatBindData(out, data, key, values, b.EnableSplitting, true)
if err != nil {
return err
}
}
files := make(map[string][]*multipart.FileHeader)
for key, values := range multipartForm.File {
err = formatBindData(out, files, key, values, b.EnableSplitting, true)
if err != nil {
return err
}
}
return parse(b.Name(), out, data, files)
}
// Reset resets the FormBinding binder.
func (b *FormBinding) Reset() {
b.EnableSplitting = false
}