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endpoint.go
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endpoint.go
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package datatypex
import (
"fmt"
"go/ast"
"net/url"
"reflect"
"strconv"
"strings"
"github.com/xoctopus/x/misc/must"
"github.com/xoctopus/x/reflectx"
"github.com/xoctopus/x/textx"
)
type Endpoint struct {
Scheme string
Host string
Port uint16
Base string
Path string
Username string
Password Password
Param url.Values
}
func (e Endpoint) String() string {
u := url.URL{
Scheme: e.Scheme,
Host: e.Hostname(),
RawPath: "",
RawQuery: e.Param.Encode(),
}
if e.Base != "" {
u.Path = "/" + e.Base
}
if e.Param != nil {
u.RawQuery = e.Param.Encode()
}
if e.Username != "" || e.Password != "" {
u.User = url.UserPassword(e.Username, e.Password.String())
}
s, err := url.QueryUnescape(u.String())
must.NoErrorWrap(err, "failed to query unescape: %s", u.String())
return s
}
func (e Endpoint) SecurityString() string {
if e.Password != "" {
e.Password = Password(e.Password.SecurityString())
}
return e.String()
}
func (e Endpoint) IsZero() bool {
return e.Host == ""
}
func (e Endpoint) Hostname() string {
if e.Port == 0 {
return e.Host
}
return fmt.Sprintf("%s:%d", e.Host, e.Port)
}
func (e Endpoint) MarshalText() ([]byte, error) {
return []byte(e.String()), nil
}
func (e *Endpoint) UnmarshalText(text []byte) error {
ep, err := ParseEndpoint(string(text))
if err != nil {
return err
}
*e = *ep
return nil
}
func ParseEndpoint(text string) (*Endpoint, error) {
u, err := url.Parse(text)
if err != nil {
return nil, err
}
ep := &Endpoint{}
ep.Scheme = u.Scheme
if q := u.Query(); len(q) > 0 {
ep.Param = q
}
ep.Path = u.Path
if len(u.Path) > 0 {
ep.Base = strings.TrimPrefix(u.Path, "/")
}
ep.Host = u.Hostname()
if port, err := strconv.ParseUint(u.Port(), 10, 16); err == nil {
ep.Port = uint16(port)
}
if u.User != nil {
ep.Username = u.User.Username()
password, _ := u.User.Password()
ep.Password = Password(password)
}
return ep, nil
}
func UnmarshalExtra(ext url.Values, v any) error {
rv := reflect.ValueOf(v)
if rv.Kind() != reflect.Pointer {
return ErrUnmarshalExtraNonPointer(rv.Type().String())
}
rv = rv.Elem()
if rv.Kind() != reflect.Struct {
return ErrUnmarshalExtraNonStruct(rv.Type().String())
}
rt := rv.Type()
for i := 0; i < rv.NumField(); i++ {
ft := rt.Field(i)
fn := ft.Name
if !ast.IsExported(fn) {
continue
}
if tag, ok := ft.Tag.Lookup("name"); ok {
key, _ := reflectx.ParseTagValue(tag)
if key == "-" {
continue
}
if key != "" {
fn = key
}
}
fv := rv.Field(i)
value := ext.Get(fn)
if value == "" {
value = ft.Tag.Get("default")
}
if err := textx.UnmarshalText([]byte(value), fv.Addr()); err != nil {
return err
}
}
return nil
}
type ErrUnmarshalExtraNonPointer string
func (e ErrUnmarshalExtraNonPointer) Error() string {
return "non-pointer value `" + string(e) + "` is not supported"
}
type ErrUnmarshalExtraNonStruct string
func (e ErrUnmarshalExtraNonStruct) Error() string {
return "non-struct value `" + string(e) + "` is not supported"
}