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fix: allow expired ID token hint to end sessions (#522)

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* fix: allow expired ID token hint to end sessions

This change adds a specific error for expired ID Token hints, including too old "issued at" and "max auth age".
The error is returned VerifyIDTokenHint so that the end session handler can choose to ignore this error.

This fixes the behavior to be in line with [OpenID Connect RP-Initiated Logout 1.0, section 4](https://openid.net/specs/openid-connect-rpinitiated-1_0.html#ValidationAndErrorHandling).

* Tes IDTokenHintExpiredError
This commit is contained in:
Tim Möhlmann 2024-01-19 12:30:51 +02:00 • committed by GitHub
parent 3f26eb10ad
commit b8e520afd0
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4 changed files with 74 additions and 46 deletions
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3
pkg/op/session.go
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@ -2,6 +2,7 @@ package op
import (
"context"
"errors"
"net/http"
"net/url"
"path"
@ -68,7 +69,7 @@ func ValidateEndSessionRequest(ctx context.Context, req *oidc.EndSessionRequest,
}
if req.IdTokenHint != "" {
claims, err := VerifyIDTokenHint[*oidc.IDTokenClaims](ctx, req.IdTokenHint, ender.IDTokenHintVerifier(ctx))
if err != nil {
if err != nil && !errors.As(err, &IDTokenHintExpiredError{}) {
return nil, oidc.ErrInvalidRequest().WithDescription("id_token_hint invalid").WithParent(err)
}
session.UserID = claims.GetSubject()