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context.go
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context.go
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package jwk
import (
"context"
"net/http"
"reflect"
"time"
)
// optionals
type (
OptionalEncodeSet interface {
WithEncodeSet(ctx context.Context) context.Context
}
OptionalEncodeKey interface {
WithEncodeKey(ctx context.Context) context.Context
}
OptionalDecodeSet interface {
WithDecodeSet(ctx context.Context) context.Context
}
OptionalDecodeKey interface {
WithDecodeKey(ctx context.Context) context.Context
}
OptionalFetchSet interface {
WithFetchSet(ctx context.Context) context.Context
}
OptionalFetchKey interface {
WithFetchKey(ctx context.Context) context.Context
}
)
// options
type (
OptionEncodeSet struct {
DisallowUnknownField bool
}
OptionEncodeKey struct {
DisallowUnknownField bool
}
OptionDecodeSet struct {
DisallowUnknownField bool
}
OptionDecodeKey struct {
// if len(KeyType) > 0, decode fail when `kty` != constraintKeyType
constraintKeyType KeyType
AllowUnknownField bool
DisallowUnknownAlgorithm bool
DisallowUnknownUse bool
DisallowUnknownOp bool
DisallowDuplicatedOps bool
DisallowBothUseAndOps bool
IgnorePrecomputed bool
IgnoreValidate bool
// For RSA Private Key, when this true, it ignore JWK define `dp`, `dq` and `qi` and precomputed values.
// Recalculate bool
// If this Value is true, Decoder don't execute key validation
// If you can trust key is safe set it true
// NoValidate bool
// If you want to select a specific key included in a set, use that handler.
// The handler uses the first value that returns true as the Key.
// That handler will check the key without kid last and iterate through the lexicographical order.
// If there is the same kid, it is checked in the order of EC, RSA, and oct using kty.
// If this value is set, the input of DecodeKey must be in Set format.
Selector func(Key) bool
HandleID func(*string) *string
}
OptionFetch struct {
Client *http.Client
}
)
// withs
type (
withOptionEncodeSet struct{ handle func(*OptionEncodeSet) }
withOptionEncodeKey struct{ handle func(*OptionEncodeKey) }
withOptionDecodeSet struct{ handle func(*OptionDecodeSet) }
withOptionDecodeKey struct{ handle func(*OptionDecodeKey) }
withOptionFetch struct{ handle func(*OptionFetch) }
withContext struct{ context context.Context }
withHTTPClient struct{ clt *http.Client }
withSelector struct{ selector func(Key) bool }
withHandleID struct{ handleID func(*string) *string }
)
// utility function for context
// ppoption must be one of (**OptionEncodeSet|**OptionEncodeKey|**OptionDecodeSet|**OptionDecodeKey|**OptionFetch)
// If there is no Option* in context, it return default option, not <nil>
// remind, ppoption must be pointer of pointer for example
// var opt *OptionFetch
// MustGetOptionFromContext(ctx, &opt, false)
func MustGetOptionFromContext(ctx context.Context, ppoption interface{}, orInsert bool) context.Context {
reflectCTXType := reflect.TypeOf(ppoption)
switch ctxv := ppoption.(type) {
case **OptionEncodeSet:
if v := ctx.Value(reflectCTXType); v != nil {
*ctxv = v.(*OptionEncodeSet)
return ctx
}
*ctxv = new(OptionEncodeSet)
if orInsert {
ctx = context.WithValue(ctx, reflectCTXType, *ctxv)
}
case **OptionEncodeKey:
if v := ctx.Value(reflectCTXType); v != nil {
*ctxv = v.(*OptionEncodeKey)
return ctx
}
*ctxv = new(OptionEncodeKey)
if orInsert {
ctx = context.WithValue(ctx, reflectCTXType, *ctxv)
}
case **OptionDecodeSet:
if v := ctx.Value(reflectCTXType); v != nil {
*ctxv = v.(*OptionDecodeSet)
return ctx
}
*ctxv = new(OptionDecodeSet)
if orInsert {
ctx = context.WithValue(ctx, reflectCTXType, *ctxv)
}
case **OptionDecodeKey:
if v := ctx.Value(reflectCTXType); v != nil {
*ctxv = v.(*OptionDecodeKey)
return ctx
}
*ctxv = new(OptionDecodeKey)
if orInsert {
ctx = context.WithValue(ctx, reflectCTXType, *ctxv)
}
case **OptionFetch:
if v := ctx.Value(reflectCTXType); v != nil {
*ctxv = v.(*OptionFetch)
return ctx
}
*ctxv = &OptionFetch{
Client: http.DefaultClient,
}
if orInsert {
ctx = context.WithValue(ctx, reflectCTXType, *ctxv)
}
}
return ctx
}
// for any
func WithContext(overide context.Context) *withContext {
return &withContext{
context: overide,
}
}
func (w *withContext) WithEncodeSet(ctx context.Context) context.Context {
return w.context
}
func (w *withContext) WithEncodeKey(ctx context.Context) context.Context {
return w.context
}
func (w *withContext) WithDecodeSet(ctx context.Context) context.Context {
return w.context
}
func (w *withContext) WithDecodeKey(ctx context.Context) context.Context {
return w.context
}
func (w *withContext) WithFetchSet(ctx context.Context) context.Context {
return w.context
}
func (w *withContext) WithFetchKey(ctx context.Context) context.Context {
return w.context
}
// for
// `OptionalFetchSet`,
// `OptionalFetchKey`
func WithHTTPClient(hclt *http.Client) *withHTTPClient {
return &withHTTPClient{
clt: hclt,
}
}
func (w *withHTTPClient) WithFetchSet(ctx context.Context) context.Context {
var ifset *OptionFetch
ctx = MustGetOptionFromContext(ctx, &ifset, true)
ifset.Client = w.clt
return ctx
}
func (w *withHTTPClient) WithFetchKey(ctx context.Context) context.Context {
var ifkey *OptionFetch
ctx = MustGetOptionFromContext(ctx, &ifkey, true)
ifkey.Client = w.clt
return ctx
}
// for
// `OptionalFetchKey`
// `OptionalDecodeKey`
func WithSelector(selector func(Key) bool) *withSelector {
return &withSelector{
selector: selector,
}
}
func (w *withSelector) WithFetchKey(ctx context.Context) context.Context {
var ifkey *OptionDecodeKey
ctx = MustGetOptionFromContext(ctx, &ifkey, true)
ifkey.Selector = w.selector
return ctx
}
func (w *withSelector) WithDecodeKey(ctx context.Context) context.Context {
var ifkey *OptionDecodeKey
ctx = MustGetOptionFromContext(ctx, &ifkey, true)
ifkey.Selector = w.selector
return ctx
}
// for
// `OptionalFetchSet`
// `OptionalFetchKey`
// `OptionalDecodeSet`
// `OptionalDecodeKey`
func WithHandleID(handleID func(s *string) *string) *withHandleID {
return &withHandleID{
handleID: handleID,
}
}
func (w *withHandleID) WithFetchSet(ctx context.Context) context.Context {
var ifkey *OptionDecodeKey
ctx = MustGetOptionFromContext(ctx, &ifkey, true)
ifkey.HandleID = w.handleID
return ctx
}
func (w *withHandleID) WithDecodeSet(ctx context.Context) context.Context {
var ifkey *OptionDecodeKey
ctx = MustGetOptionFromContext(ctx, &ifkey, true)
ifkey.HandleID = w.handleID
return ctx
}
func (w *withHandleID) WithFetchKey(ctx context.Context) context.Context {
var ifkey *OptionDecodeKey
ctx = MustGetOptionFromContext(ctx, &ifkey, true)
ifkey.HandleID = w.handleID
return ctx
}
func (w *withHandleID) WithDecodeKey(ctx context.Context) context.Context {
var ifkey *OptionDecodeKey
ctx = MustGetOptionFromContext(ctx, &ifkey, true)
ifkey.HandleID = w.handleID
return ctx
}
func WithOptionEncodeSet(handle func(value *OptionEncodeSet)) *withOptionEncodeSet {
return &withOptionEncodeSet{handle: handle}
}
func (w *withOptionEncodeSet) WithEncodeSet(ctx context.Context) context.Context {
var option *OptionEncodeSet
ctx = MustGetOptionFromContext(ctx, &option, true)
w.handle(option)
return ctx
}
func WithOptionEncodeKey(handle func(value *OptionEncodeKey)) *withOptionEncodeKey {
return &withOptionEncodeKey{handle: handle}
}
func (w *withOptionEncodeKey) WithEncodeSet(ctx context.Context) context.Context {
var option *OptionEncodeKey
ctx = MustGetOptionFromContext(ctx, &option, true)
w.handle(option)
return ctx
}
func (w *withOptionEncodeKey) WithEncodeKey(ctx context.Context) context.Context {
var option *OptionEncodeKey
ctx = MustGetOptionFromContext(ctx, &option, true)
w.handle(option)
return ctx
}
func WithOptionDecodeSet(handle func(value *OptionDecodeSet)) *withOptionDecodeSet {
return &withOptionDecodeSet{handle: handle}
}
func (w *withOptionDecodeSet) WithFetchSet(ctx context.Context) context.Context {
var option *OptionDecodeSet
ctx = MustGetOptionFromContext(ctx, &option, true)
w.handle(option)
return ctx
}
func (w *withOptionDecodeSet) WithDecodeSet(ctx context.Context) context.Context {
var option *OptionDecodeSet
ctx = MustGetOptionFromContext(ctx, &option, true)
w.handle(option)
return ctx
}
func WithOptionDecodeKey(handle func(value *OptionDecodeKey)) *withOptionDecodeKey {
return &withOptionDecodeKey{handle: handle}
}
func (w *withOptionDecodeKey) WithFetchSet(ctx context.Context) context.Context {
var option *OptionDecodeKey
ctx = MustGetOptionFromContext(ctx, &option, true)
w.handle(option)
return ctx
}
func (w *withOptionDecodeKey) WithFetchKey(ctx context.Context) context.Context {
var option *OptionDecodeKey
ctx = MustGetOptionFromContext(ctx, &option, true)
w.handle(option)
return ctx
}
func (w *withOptionDecodeKey) WithDecodeSet(ctx context.Context) context.Context {
var option *OptionDecodeKey
ctx = MustGetOptionFromContext(ctx, &option, true)
w.handle(option)
return ctx
}
func (w *withOptionDecodeKey) WithDecodeKey(ctx context.Context) context.Context {
var option *OptionDecodeKey
ctx = MustGetOptionFromContext(ctx, &option, true)
w.handle(option)
return ctx
}
func WithOptionFetch(handle func(value *OptionFetch)) *withOptionFetch {
return &withOptionFetch{handle: handle}
}
func (w *withOptionFetch) WithFetchSet(ctx context.Context) context.Context {
var option *OptionFetch
ctx = MustGetOptionFromContext(ctx, &option, true)
w.handle(option)
return ctx
}
func (w *withOptionFetch) WithFetchKey(ctx context.Context) context.Context {
var option *OptionFetch
ctx = MustGetOptionFromContext(ctx, &option, true)
w.handle(option)
return ctx
}
// context.Context for *OptionDecodeKey
func (opt *OptionDecodeKey) Deadline() (deadline time.Time, ok bool) {
return time.Time{}, false
}
// context.Context for *OptionDecodeKey
func (opt *OptionDecodeKey) Done() <-chan struct{} {
return nil
}
// context.Context for *OptionDecodeKey
func (opt *OptionDecodeKey) Err() error {
return nil
}
// context.Context for *OptionDecodeKey
func (opt *OptionDecodeKey) Value(key interface{}) interface{} {
if typ, ok := key.(reflect.Type); ok {
if typ == reflect.TypeOf(&opt) {
return opt
}
}
return nil
}
// context.Context for *OptionDecodeSet
func (opt *OptionDecodeSet) Deadline() (deadline time.Time, ok bool) {
return time.Time{}, false
}
// context.Context for *OptionDecodeSet
func (opt *OptionDecodeSet) Done() <-chan struct{} {
return nil
}
// context.Context for *OptionDecodeSet
func (opt *OptionDecodeSet) Err() error {
return nil
}
// context.Context for *OptionDecodeSet
func (opt *OptionDecodeSet) Value(key interface{}) interface{} {
if typ, ok := key.(reflect.Type); ok {
if typ == reflect.TypeOf(&opt) {
return opt
}
}
return nil
}
// context.Context for *OptionEncodeSet
func (opt *OptionEncodeSet) Deadline() (deadline time.Time, ok bool) {
return time.Time{}, false
}
// context.Context for *OptionEncodeSet
func (opt *OptionEncodeSet) Done() <-chan struct{} {
return nil
}
// context.Context for *OptionEncodeSet
func (opt *OptionEncodeSet) Err() error {
return nil
}
// context.Context for *OptionEncodeSet
func (opt *OptionEncodeSet) Value(key interface{}) interface{} {
if typ, ok := key.(reflect.Type); ok {
if typ == reflect.TypeOf(&opt) {
return opt
}
}
return nil
}
// context.Context for *OptionEncodeKey
func (opt *OptionEncodeKey) Deadline() (deadline time.Time, ok bool) {
return time.Time{}, false
}
// context.Context for *OptionEncodeKey
func (opt *OptionEncodeKey) Done() <-chan struct{} {
return nil
}
// context.Context for *OptionEncodeKey
func (opt *OptionEncodeKey) Err() error {
return nil
}
// context.Context for *OptionEncodeKey
func (opt *OptionEncodeKey) Value(key interface{}) interface{} {
if typ, ok := key.(reflect.Type); ok {
if typ == reflect.TypeOf(&opt) {
return opt
}
}
return nil
}
// context.Context for *OptionFetch
func (opt *OptionFetch) Deadline() (deadline time.Time, ok bool) {
return time.Time{}, false
}
// context.Context for *OptionFetch
func (opt *OptionFetch) Done() <-chan struct{} {
return nil
}
// context.Context for *OptionFetch
func (opt *OptionFetch) Err() error {
return nil
}
// context.Context for *OptionFetch
func (opt *OptionFetch) Value(key interface{}) interface{} {
if typ, ok := key.(reflect.Type); ok {
if typ == reflect.TypeOf(&opt) {
return opt
}
}
return nil
}