tomaswolf commented on code in PR #222:
URL: https://github.com/apache/mina-sshd/pull/222#discussion_r870480760
##########
sshd-core/src/main/java/org/apache/sshd/certificate/OpenSshCertificateBuilder.java:
##########
@@ -104,7 +110,21 @@ public OpenSshCertificateBuilder
principals(Collection<String> principals) {
}
public OpenSshCertificateBuilder
criticalOptions(List<OpenSshCertificate.CertificateOption> criticalOptions) {
- this.criticalOptions = criticalOptions;
+ if (criticalOptions != null && !criticalOptions.isEmpty()) {
+ // check if any duplicates
+ Set<String> names = new HashSet<String>();
+ Set<String> duplicates = criticalOptions.stream().filter(option ->
!names.add(option.getName()))
+ .map(option -> option.getName())
+ .collect(Collectors.toSet());
+ if (!duplicates.isEmpty()) {
+ throw new IllegalArgumentException("Duplicate critical option:
" + String.join(",", duplicates));
+ }
+ // lexically order by "name"
+ List<OpenSshCertificate.CertificateOption> sortedCriticalOptions =
criticalOptions.stream()
+
.sorted(Comparator.comparing(OpenSshCertificate.CertificateOption::getName))
+ .collect(Collectors.toList());
+ this.criticalOptions = sortedCriticalOptions;
+ }
Review Comment:
Please see OpenSSH [bug
3198](https://bugzilla.mindrot.org/show_bug.cgi?id=3198), fixed in OpenSSH 8.4
via [this
commit](https://github.com/openssh/openssh-portable/commit/2d8a3b7e8b0408dfeb933ac5cfd3a58f5bac49af).
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