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package oidc
import (
"database/sql/driver"
"encoding/json"
"errors"
"fmt"
"reflect"
"strings"
"time"
jose "github.com/go-jose/go-jose/v4"
"github.com/muhlemmer/gu"
"github.com/zitadel/schema"
"golang.org/x/text/language"
)
type Audience []string
func (a *Audience) UnmarshalJSON(text []byte) error {
var i any
err := json.Unmarshal(text, &i)
if err != nil {
return err
}
switch aud := i.(type) {
case []any:
*a = make([]string, len(aud))
for i, audience := range aud {
(*a)[i] = audience.(string)
}
case string:
*a = []string{aud}
}
return nil
}
type Display string
func (d *Display) UnmarshalText(text []byte) error {
display := Display(text)
switch display {
case DisplayPage, DisplayPopup, DisplayTouch, DisplayWAP:
*d = display
}
return nil
}
type Gender string
type Locale struct {
tag language.Tag
}
func NewLocale(tag language.Tag) *Locale {
return &Locale{tag: tag}
}
func (l *Locale) Tag() language.Tag {
if l == nil {
return language.Und
}
return l.tag
}
func (l *Locale) String() string {
return l.Tag().String()
}
func (l *Locale) MarshalJSON() ([]byte, error) {
tag := l.Tag()
if tag.IsRoot() {
return []byte("null"), nil
}
return json.Marshal(tag)
}
// UnmarshalJSON implements json.Unmarshaler.
// When [language.ValueError] is encountered, the containing tag will be set
// to an empty value (language "und") and no error will be returned.
// This state can be checked with the `l.Tag().IsRoot()` method.
func (l *Locale) UnmarshalJSON(data []byte) error {
if len(data) == 0 || string(data) == "\"\"" {
return nil
}
err := json.Unmarshal(data, &l.tag)
if err == nil {
return nil
}
// catch "well-formed but unknown" errors
var target language.ValueError
if errors.As(err, &target) {
l.tag = language.Tag{}
return nil
}
return err
}
type Locales []language.Tag
// ParseLocales parses a slice of strings into Locales.
// If an entry causes a parse error or is undefined,
// it is ignored and not set to Locales.
func ParseLocales(locales []string) Locales {
out := make(Locales, 0, len(locales))
for _, locale := range locales {
tag, err := language.Parse(locale)
if err == nil && !tag.IsRoot() {
out = append(out, tag)
}
}
return out
}
// UnmarshalText implements the [encoding.TextUnmarshaler] interface.
// It decodes an unquoted space seperated string into Locales.
// Undefined language tags in the input are ignored and ommited from
// the resulting Locales.
func (l *Locales) UnmarshalText(text []byte) error {
*l = ParseLocales(
strings.Split(string(text), " "),
)
return nil
}
// UnmarshalJSON implements the [json.Unmarshaler] interface.
// It decodes a json array or a space seperated string into Locales.
// Undefined language tags in the input are ignored and ommited from
// the resulting Locales.
func (l *Locales) UnmarshalJSON(data []byte) error {
var dst any
if err := json.Unmarshal(data, &dst); err != nil {
return fmt.Errorf("oidc locales: %w", err)
}
// We catch the posibility of a space seperated string here,
// because UnmarshalText might have been implicetely called
// by the json library before we added UnmarshalJSON.
switch v := dst.(type) {
case nil:
*l = nil
case string:
*l = ParseLocales(strings.Split(v, " "))
case []any:
locales, err := gu.AssertInterfaces[string](v)
if err != nil {
return fmt.Errorf("oidc locales: %w", err)
}
*l = ParseLocales(locales)
default:
return fmt.Errorf("oidc locales: unsupported type: %T", v)
}
return nil
}
type MaxAge *uint
func NewMaxAge(i uint) MaxAge {
return &i
}
type SpaceDelimitedArray []string
type Prompt SpaceDelimitedArray
type ResponseType string
type ResponseMode string
func (s SpaceDelimitedArray) String() string {
return strings.Join(s, " ")
}
func (s *SpaceDelimitedArray) UnmarshalText(text []byte) error {
*s = strings.Split(string(text), " ")
return nil
}
func (s SpaceDelimitedArray) MarshalText() ([]byte, error) {
return []byte(s.String()), nil
}
func (s SpaceDelimitedArray) MarshalJSON() ([]byte, error) {
return json.Marshal((s).String())
}
func (s *SpaceDelimitedArray) UnmarshalJSON(data []byte) error {
var str string
if err := json.Unmarshal(data, &str); err != nil {
return err
}
*s = strings.Split(str, " ")
return nil
}
func (s *SpaceDelimitedArray) Scan(src any) error {
if src == nil {
*s = nil
return nil
}
switch v := src.(type) {
case string:
if len(v) == 0 {
*s = SpaceDelimitedArray{}
return nil
}
*s = strings.Split(v, " ")
case []byte:
if len(v) == 0 {
*s = SpaceDelimitedArray{}
return nil
}
*s = strings.Split(string(v), " ")
default:
return fmt.Errorf("cannot convert %T to SpaceDelimitedArray", src)
}
return nil
}
func (s SpaceDelimitedArray) Value() (driver.Value, error) {
return strings.Join(s, " "), nil
}
// NewEncoder returns a schema Encoder with
// a registered encoder for SpaceDelimitedArray.
func NewEncoder() *schema.Encoder {
e := schema.NewEncoder()
e.RegisterEncoder(SpaceDelimitedArray{}, func(value reflect.Value) string {
return value.Interface().(SpaceDelimitedArray).String()
})
return e
}
type Time int64
func (ts Time) AsTime() time.Time {
if ts == 0 {
return time.Time{}
}
return time.Unix(int64(ts), 0)
}
func FromTime(tt time.Time) Time {
if tt.IsZero() {
return 0
}
return Time(tt.Unix())
}
func NowTime() Time {
return FromTime(time.Now())
}
func (ts *Time) UnmarshalJSON(data []byte) error {
var v any
if err := json.Unmarshal(data, &v); err != nil {
return fmt.Errorf("oidc.Time: %w", err)
}
switch x := v.(type) {
case float64:
*ts = Time(x)
case string:
// Compatibility with Auth0:
// https://github.com/zitadel/oidc/issues/292
tt, err := time.Parse(time.RFC3339, x)
if err != nil {
return fmt.Errorf("oidc.Time: %w", err)
}
*ts = FromTime(tt)
case nil:
*ts = 0
default:
return fmt.Errorf("oidc.Time: unable to parse type %T with value %v", x, x)
}
return nil
}
type RequestObject struct {
Issuer string `json:"iss"`
Audience Audience `json:"aud"`
AuthRequest
}
func (r *RequestObject) GetIssuer() string {
return r.Issuer
}
func (*RequestObject) SetSignatureAlgorithm(algorithm jose.SignatureAlgorithm) {}
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