From 5161ece63b99d39b2283f9b1bc77efd8bdd13aad Mon Sep 17 00:00:00 2001
From: Naoki Takezoe <takezoe@gmail.com>
Date: Fri, 13 May 2016 15:43:44 -0400
Subject: [PATCH] (refs #1104)Unique checking for the public key

---
 .../scala/gitbucket/core/controller/AccountController.scala   | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/main/scala/gitbucket/core/controller/AccountController.scala b/src/main/scala/gitbucket/core/controller/AccountController.scala
index 5ddc010ce..caddeabb8 100644
--- a/src/main/scala/gitbucket/core/controller/AccountController.scala
+++ b/src/main/scala/gitbucket/core/controller/AccountController.scala
@@ -447,8 +447,8 @@ trait AccountControllerBase extends AccountManagementControllerBase {
 
   private def validPublicKey: Constraint = new Constraint(){
     override def validate(name: String, value: String, messages: Messages): Option[String] = SshUtil.str2PublicKey(value) match {
-     case Some(_) => None
-     case None => Some("Key is invalid.")
+     case Some(_) if !getAllKeys().exists(_.publicKey == value) => None
+     case _ => Some("Key is invalid.")
     }
   }