Changes
This PR adds the ability to manipulate a token string after it has been extracted from a header using options.WithTokenStringPostExtractionFn.
Example:
oidcHandler := oidcgin.New(
options.WithIssuer(cfg.Issuer),
options.WithFallbackSignatureAlgorithm(cfg.FallbackSignatureAlgorithm),
options.WithRequiredClaims(map[string]interface{}{
"cid": cfg.ClientID,
}),
options.WithTokenString(
options.WithTokenStringHeaderName("Authorization"),
options.WithTokenStringTokenPrefix("Bearer "),
),
options.WithTokenString(
options.WithTokenStringHeaderName("Sec-WebSocket-Protocol"),
options.WithTokenStringTokenPrefix("base64url.bearer.authorization.k8s.io."),
options.WithTokenStringListSeparator(","),
options.WithTokenStringPostExtractionFn(func(s string) (string, error) {
bytes, err := base64.RawStdEncoding.DecodeString(s)
if err != nil {
return "", err
}
return string(bytes), nil
}),
),
)