From eecaad8b8e2c447429c31a01d49260ddd6b4ee03 Mon Sep 17 00:00:00 2001
From: Paul Martin <paul@paulsputer.com>
Date: Sat, 16 Apr 2016 17:35:32 -0400
Subject: [PATCH] Proof of concept #1026

---
 src/main/java/com/gitblit/transport/ssh/IPublicKeyManager.java |   18 +++++++++++++++++-
 1 files changed, 17 insertions(+), 1 deletions(-)

diff --git a/src/main/java/com/gitblit/transport/ssh/IPublicKeyManager.java b/src/main/java/com/gitblit/transport/ssh/IPublicKeyManager.java
index 956a76e..1e74b2f 100644
--- a/src/main/java/com/gitblit/transport/ssh/IPublicKeyManager.java
+++ b/src/main/java/com/gitblit/transport/ssh/IPublicKeyManager.java
@@ -16,6 +16,7 @@
 package com.gitblit.transport.ssh;
 
 import java.text.MessageFormat;
+import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.TimeUnit;
@@ -46,7 +47,11 @@
 			.build(new CacheLoader<String, List<SshKey>>() {
 				@Override
 				public List<SshKey> load(String username) {
-					return getKeysImpl(username);
+					List<SshKey> keys = getKeysImpl(username);
+					if (keys == null) {
+						return Collections.emptyList();
+					}
+					return Collections.unmodifiableList(keys);
 				}
 			});
 
@@ -74,6 +79,17 @@
 		return null;
 	}
 
+	public final void renameUser(String oldName, String newName) {
+		List<SshKey> keys = getKeys(oldName);
+		if (keys == null || keys.isEmpty()) {
+			return;
+		}
+		removeAllKeys(oldName);
+		for (SshKey key : keys) {
+			addKey(newName, key);
+		}
+	}
+
 	protected abstract boolean isStale(String username);
 
 	protected abstract List<SshKey> getKeysImpl(String username);

--
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