57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
package op
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import (
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"context"
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"github.com/zitadel/oidc/v3/pkg/oidc"
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)
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type AccessTokenVerifier oidc.Verifier
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type AccessTokenVerifierOpt func(*AccessTokenVerifier)
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func WithSupportedAccessTokenSigningAlgorithms(algs ...string) AccessTokenVerifierOpt {
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return func(verifier *AccessTokenVerifier) {
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verifier.SupportedSignAlgs = algs
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}
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}
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// NewAccessTokenVerifier returns a AccessTokenVerifier suitable for access token verification.
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func NewAccessTokenVerifier(issuer string, keySet oidc.KeySet, opts ...AccessTokenVerifierOpt) *AccessTokenVerifier {
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verifier := &AccessTokenVerifier{
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Issuer: issuer,
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KeySet: keySet,
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}
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for _, opt := range opts {
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opt(verifier)
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}
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return verifier
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}
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// VerifyAccessToken validates the access token (issuer, signature and expiration).
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func VerifyAccessToken[C oidc.Claims](ctx context.Context, token string, v *AccessTokenVerifier) (claims C, err error) {
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var nilClaims C
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decrypted, err := oidc.DecryptToken(token)
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if err != nil {
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return nilClaims, 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 nilClaims, err
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}
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if err := oidc.CheckIssuer(claims, v.Issuer); err != nil {
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return nilClaims, 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 nilClaims, err
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}
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if err = oidc.CheckExpiration(claims, v.Offset); err != nil {
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return nilClaims, err
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}
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return claims, nil
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}
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