102 lines
2.2 KiB
Go
102 lines
2.2 KiB
Go
package op
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import (
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"context"
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"time"
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"github.com/zitadel/oidc/pkg/oidc"
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)
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type IDTokenHintVerifier interface {
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oidc.Verifier
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SupportedSignAlgs() []string
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KeySet() oidc.KeySet
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ACR() oidc.ACRVerifier
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MaxAge() time.Duration
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}
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type idTokenHintVerifier struct {
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issuer string
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maxAgeIAT time.Duration
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offset time.Duration
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supportedSignAlgs []string
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maxAge time.Duration
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acr oidc.ACRVerifier
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keySet oidc.KeySet
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}
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func (i *idTokenHintVerifier) Issuer() string {
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return i.issuer
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}
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func (i *idTokenHintVerifier) MaxAgeIAT() time.Duration {
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return i.maxAgeIAT
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}
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func (i *idTokenHintVerifier) Offset() time.Duration {
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return i.offset
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}
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func (i *idTokenHintVerifier) SupportedSignAlgs() []string {
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return i.supportedSignAlgs
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}
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func (i *idTokenHintVerifier) KeySet() oidc.KeySet {
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return i.keySet
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}
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func (i *idTokenHintVerifier) ACR() oidc.ACRVerifier {
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return i.acr
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}
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func (i *idTokenHintVerifier) MaxAge() time.Duration {
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return i.maxAge
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}
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func NewIDTokenHintVerifier(issuer string, keySet oidc.KeySet) IDTokenHintVerifier {
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verifier := &idTokenHintVerifier{
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issuer: issuer,
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keySet: keySet,
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}
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return verifier
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}
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// VerifyIDTokenHint validates the id token according to
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//https://openid.net/specs/openid-connect-core-1_0.html#IDTokenValidation
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func VerifyIDTokenHint(ctx context.Context, token string, v IDTokenHintVerifier) (oidc.IDTokenClaims, error) {
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claims := oidc.EmptyIDTokenClaims()
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decrypted, err := oidc.DecryptToken(token)
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if err != nil {
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return nil, err
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}
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payload, err := oidc.ParseToken(decrypted, claims)
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if err != nil {
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return nil, err
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}
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if err := oidc.CheckIssuer(claims, v.Issuer()); err != nil {
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return nil, err
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}
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if err = oidc.CheckSignature(ctx, decrypted, payload, claims, v.SupportedSignAlgs(), v.KeySet()); err != nil {
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return nil, err
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}
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if err = oidc.CheckExpiration(claims, v.Offset()); err != nil {
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return nil, err
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}
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if err = oidc.CheckIssuedAt(claims, v.MaxAgeIAT(), v.Offset()); err != nil {
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return nil, err
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}
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if err = oidc.CheckAuthorizationContextClassReference(claims, v.ACR()); err != nil {
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return nil, err
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}
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if err = oidc.CheckAuthTime(claims, v.MaxAge()); err != nil {
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return nil, err
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}
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return claims, nil
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}
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