kevdoran commented on a change in pull request #302:
URL: https://github.com/apache/nifi-registry/pull/302#discussion_r490533774
##########
File path:
nifi-registry-core/nifi-registry-security-utils/src/main/java/org/apache/nifi/registry/security/util/ProxiedEntitiesUtils.java
##########
@@ -39,6 +41,55 @@
private static final String ANONYMOUS_CHAIN = "<>";
+ /**
+ * Formats a list of DN/usernames to be set as a HTTP header using well
known conventions.
+ *
+ * @param proxiedEntities the raw identities (usernames and DNs) to be
formatted as a chain
+ * @return the value to use in the X-ProxiedEntitiesChain header
+ */
+ public static String getProxiedEntitiesChain(final String[]
proxiedEntities) {
+ if (proxiedEntities == null) {
+ return null;
+ }
+
+ final List<String> proxiedEntityChain = Arrays.stream(proxiedEntities)
+ .map(ProxiedEntitiesUtils::formatProxyDn)
+ .collect(Collectors.toList());
+ return StringUtils.join(proxiedEntityChain, "");
+ }
+
+ /**
+ * Tokenizes the specified proxy chain.
+ *
+ * @param rawProxyChain raw chain
+ * @return tokenized proxy chain
+ */
+ public static List<String> tokenizeProxiedEntitiesChain(final String
rawProxyChain) {
+ final List<String> proxyChain = new ArrayList<>();
+ if (!StringUtils.isEmpty(rawProxyChain)) {
+ // Split the String on the >< token
+ rawProxyChain.split("><");
Review comment:
This was unintentional. I had started refactoring code to remove the dep
on commons, but the commons method semantics are necessary. Good catch, I will
remove this.
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