// attributeOrDefault reads an attribute and returns it or the default value when it's empty.
func (bow *Browser) attrOrDefault(name, def string, sel *goquery.Selection) string {
a, ok := sel.Attr(name)
if ok {
return a
}
return def
}
// attributeToUrl reads an attribute from an element and returns a url.
func (bow *Browser) attrToResolvedUrl(name string, sel *goquery.Selection) (*url.URL, error) {
src, ok := sel.Attr(name)
if !ok {
return nil, errors.NewAttributeNotFound(
"Attribute '%s' not found.", name)
}
ur, err := url.Parse(src)
if err != nil {
return nil, err
}
return bow.ResolveUrl(ur), nil
}
func formAttributes(bow Browsable, s *goquery.Selection) (string, string) {
method, ok := s.Attr("method")
if !ok {
method = "GET"
}
action, ok := s.Attr("action")
if !ok {
action = bow.Url().String()
}
aurl, err := url.Parse(action)
if err != nil {
return "", ""
}
aurl = bow.ResolveUrl(aurl)
return strings.ToUpper(method), aurl.String()
}