mirror of https://github.com/gin-gonic/gin.git
90 lines
2.0 KiB
Go
90 lines
2.0 KiB
Go
// Copyright 2014 Manu Martinez-Almeida. All rights reserved.
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// Use of this source code is governed by a MIT style
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// license that can be found in the LICENSE file.
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package binding
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import (
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"mime/multipart"
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"net/http"
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"reflect"
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)
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const defaultMemory = 32 * 1024 * 1024
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type formBinding struct{}
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type formPostBinding struct{}
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type formMultipartBinding struct{}
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func (formBinding) Name() string {
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return "form"
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}
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func (formBinding) Bind(req *http.Request, obj interface{}) error {
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if err := req.ParseForm(); err != nil {
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return err
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}
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if err := req.ParseMultipartForm(defaultMemory); err != nil {
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if err != http.ErrNotMultipart {
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return err
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}
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}
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if err := mapForm(obj, req.Form); err != nil {
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return err
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}
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return validate(obj)
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}
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func (formPostBinding) Name() string {
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return "form-urlencoded"
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}
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func (formPostBinding) Bind(req *http.Request, obj interface{}) error {
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if err := req.ParseForm(); err != nil {
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return err
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}
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if err := mapForm(obj, req.PostForm); err != nil {
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return err
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}
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return validate(obj)
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}
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func (formMultipartBinding) Name() string {
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return "multipart/form-data"
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}
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func (formMultipartBinding) Bind(req *http.Request, obj interface{}) error {
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if err := req.ParseMultipartForm(defaultMemory); err != nil {
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return err
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}
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if err := mappingByPtr(obj, (*multipartRequest)(req), "form"); err != nil {
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return err
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}
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return validate(obj)
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}
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type multipartRequest http.Request
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var _ setter = (*multipartRequest)(nil)
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var (
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multipartFileHeaderStructType = reflect.TypeOf(multipart.FileHeader{})
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)
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// TrySet tries to set a value by the multipart request with the binding a form file
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func (r *multipartRequest) TrySet(value reflect.Value, field reflect.StructField, key string, opt setOptions) (isSetted bool, err error) {
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if value.Type() == multipartFileHeaderStructType {
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_, file, err := (*http.Request)(r).FormFile(key)
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if err != nil {
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return false, err
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}
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if file != nil {
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value.Set(reflect.ValueOf(*file))
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return true, nil
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}
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}
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return setByForm(value, field, r.MultipartForm.Value, key, opt)
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}
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