form.go

Documentation: github.com/gin-gonic/gin/binding

     1  // Copyright 2014 Manu Martinez-Almeida. All rights reserved.
     2  // Use of this source code is governed by a MIT style
     3  // license that can be found in the LICENSE file.
     4  
     5  package binding
     6  
     7  import (
     8  	"errors"
     9  	"net/http"
    10  )
    11  
    12  const defaultMemory = 32 << 20
    13  
    14  type formBinding struct{}
    15  type formPostBinding struct{}
    16  type formMultipartBinding struct{}
    17  
    18  func (formBinding) Name() string {
    19  	return "form"
    20  }
    21  
    22  func (formBinding) Bind(req *http.Request, obj any) error {
    23  	if err := req.ParseForm(); err != nil {
    24  		return err
    25  	}
    26  	if err := req.ParseMultipartForm(defaultMemory); err != nil && !errors.Is(err, http.ErrNotMultipart) {
    27  		return err
    28  	}
    29  	if err := mapForm(obj, req.Form); err != nil {
    30  		return err
    31  	}
    32  	return validate(obj)
    33  }
    34  
    35  func (formPostBinding) Name() string {
    36  	return "form-urlencoded"
    37  }
    38  
    39  func (formPostBinding) Bind(req *http.Request, obj any) error {
    40  	if err := req.ParseForm(); err != nil {
    41  		return err
    42  	}
    43  	if err := mapForm(obj, req.PostForm); err != nil {
    44  		return err
    45  	}
    46  	return validate(obj)
    47  }
    48  
    49  func (formMultipartBinding) Name() string {
    50  	return "multipart/form-data"
    51  }
    52  
    53  func (formMultipartBinding) Bind(req *http.Request, obj any) error {
    54  	if err := req.ParseMultipartForm(defaultMemory); err != nil {
    55  		return err
    56  	}
    57  	if err := mappingByPtr(obj, (*multipartRequest)(req), "form"); err != nil {
    58  		return err
    59  	}
    60  
    61  	return validate(obj)
    62  }
    63
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