kezhuw commented on code in PR #2280:
URL: https://github.com/apache/zookeeper/pull/2280#discussion_r2273659021
##########
zookeeper-server/src/main/java/org/apache/zookeeper/server/auth/IPAuthenticationProvider.java:
##########
@@ -81,6 +96,121 @@ private byte[] v4addr2Bytes(String addr) {
return b;
}
+ /**
+ * Validates an IPv6 address string and converts it into a byte array.
+ *
+ * @param ipv6Addr The IPv6 address string to validate.
+ * @return A byte array representing the IPv6 address if valid, or null if
the address
+ * is invalid or cannot be parsed.
+ */
+ public static byte[] v6addr2Bytes(String ipv6Addr) {
+ // Split the address by "::" to handle zero compression, -1 to keep
trailing empty strings
+ String[] parts = ipv6Addr.trim().split("::", -1);
+
+ String[] segments1 = new String[0];
+ String[] segments2 = new String[0];
+
+ // Case 1: No "::" (full address)
+ if (parts.length == 1) {
+ segments1 = parts[0].split(":");
+ if (segments1.length != IPV6_SEGMENT_COUNT) {
+ LOG.warn("IPv6 address without '::' must have " +
IPV6_SEGMENT_COUNT + " segments: {}", ipv6Addr);
Review Comment:
```suggestion
LOG.warn("IPv6 address without '::' must have {} segments:
{}", IPV6_SEGMENT_COUNT, ipv6Addr);
```
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