jerqi commented on code in PR #9788:
URL: https://github.com/apache/gravitino/pull/9788#discussion_r2734581228
##########
server-common/src/main/java/org/apache/gravitino/server/authentication/StaticSignKeyValidator.java:
##########
@@ -107,6 +123,23 @@ public Principal validateToken(String token, String
serviceAudience) {
}
}
+ /** Extracts the principal from the JWT claims using configured field(s). */
+ private String extractPrincipal(Claims claims) {
+ // Try the principal field(s) one by one in order
+ if (principalFields != null && !principalFields.isEmpty()) {
+ for (String field : principalFields) {
+ if (StringUtils.isNotBlank(field)) {
+ Object claimValue = claims.get(field);
+ if (claimValue != null) {
+ return claimValue.toString();
+ }
+ }
+ }
+ }
+
+ return null;
Review Comment:
throw exception directly here.
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