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package gosubmit
import (
"fmt"
"net/http"
"golang.org/x/net/html"
)
type errorContainer struct {
err error
}
type Forms []Form
func (e *errorContainer) setError(err error) {
if e.err == nil {
e.err = err
}
}
func (e *errorContainer) Err() error {
return e.err
}
type Document struct {
errorContainer
forms Forms
}
type Inputs map[string]Input
func (d Document) Forms() Forms {
return d.forms
}
func (forms Forms) First() (form Form) {
if len(forms) == 0 {
form.Inputs = make(Inputs)
form.setError(fmt.Errorf("No forms found"))
return
}
return forms[0]
}
func (forms Forms) Last() (form Form) {
size := len(forms)
if size == 0 {
form.Inputs = make(Inputs)
form.setError(fmt.Errorf("No forms found"))
return
}
return forms[size-1]
}
func (d Document) FirstForm() (form Form) {
return d.forms.First()
}
func (d Document) FindForm(attrKey string, attrValue string) (form Form) {
for _, f := range d.forms {
for _, attr := range f.Attr {
if attr.Key == attrKey && attr.Val == attrValue {
return f
}
}
}
form.Inputs = make(Inputs)
form.setError(fmt.Errorf("No form with attributes %s='%s' found", attrKey, attrValue))
return
}
func (d Document) FindFormsByClass(className string) (forms Forms) {
for _, f := range d.forms {
for _, class := range f.ClassList {
if class == className {
forms = append(forms, f)
}
}
}
return
}
type Form struct {
errorContainer
// All html attributes of the form. Used to find the form by attribute
Attr []html.Attribute
ClassList []string
// Value of Enctype attribute, default is application/x-www-form-urlencoded.
// For forms with file uploads it should be multipart/form-data.
ContentType string
// All found inputs
Inputs Inputs
// Value of form method attribute
Method string
// Value form action attribute
URL string
// All found <button type="submit"> and <input type="submit"> elements.
Buttons []Button
}
// Returns true if field is required, false otherwise.
func (f Form) IsRequired(name string) bool {
input, ok := f.Inputs[name]
return ok && input.Required()
}
func (f Form) newFiller(opts []Option) (filler *filler, err error) {
if f.err != nil {
err = f.err
return
}
filler, err = newFiller(f, opts)
return
}
// Fills the form and returns an error if there was an error. Useful for
// testing.
func (f Form) Validate(opts ...Option) error {
_, err := f.newFiller(opts)
return err
}
// Fills the form and returns a new request. If there was any error in the
// parsing or if the form was filled incorrectly, it will return an error.
func (f Form) NewRequest(opts ...Option) (*http.Request, error) {
filler, err := f.newFiller(opts)
if err != nil {
return nil, err
}
return filler.NewRequest()
}
// Fills the form and returns a new test request. If there was any error in the
// parsing or if the form was filled incorrectly, it will return an error.
func (f Form) NewTestRequest(opts ...Option) (*http.Request, error) {
filler, err := f.newFiller(opts)
if err != nil {
return nil, err
}
return filler.NewTestRequest()
}
// Fills the form and returns parameters for a multipart request. If there was
// any error in the parsing or if the form was filled incorrectly, it will
// return an error.
func (f Form) MultipartParams(opts ...Option) (boundary string, data []byte, err error) {
filler, err := f.newFiller(opts)
if err != nil {
return "", nil, err
}
return filler.BuildMultipart()
}
// Fills the form and returns query parameters for a GET request.
func (f Form) GetParams(opts ...Option) (string, error) {
filler, err := f.newFiller(opts)
if err != nil {
return "", err
}
return filler.BuildGet()
}
// Fills the form and returns body for a POST request.
func (f Form) PostParams(opts ...Option) ([]byte, error) {
filler, err := f.newFiller(opts)
if err != nil {
return nil, err
}
return filler.BuildPost()
}
// Returns a list of available input values for elements with options
// (checkbox, radio or select).
func (f Form) GetOptionsFor(name string) (options []string) {
input, ok := f.Inputs[name]
if !ok {
return
}
return input.Options()
}
func (f Form) Testing(t test) TestingForm {
return TestingForm{form: f, t: t}
}
|
