From 87be310193431381015d02e0ad68742751c80db5 Mon Sep 17 00:00:00 2001
From: mguessan <mguessan@3d1905a2-6b24-0410-a738-b14d5a86fcbd>
Date: Fri, 3 Jan 2014 22:07:04 +0000
Subject: [PATCH] Fix regression in itemId detection

git-svn-id: http://svn.code.sf.net/p/davmail/code/trunk@2205 3d1905a2-6b24-0410-a738-b14d5a86fcbd
---
 src/java/davmail/exchange/ews/EwsExchangeSession.java | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/java/davmail/exchange/ews/EwsExchangeSession.java b/src/java/davmail/exchange/ews/EwsExchangeSession.java
index 06896e3c..8fe556d0 100644
--- a/src/java/davmail/exchange/ews/EwsExchangeSession.java
+++ b/src/java/davmail/exchange/ews/EwsExchangeSession.java
@@ -2450,8 +2450,8 @@ public class EwsExchangeSession extends ExchangeSession {
      */
     protected static boolean isItemId(String itemName) {
         return itemName.length() >= 152
-                // item name is base64
-                && itemName.matches("^([A-Za-z0-9+/]{4})*([A-Za-z0-9+/]{4}|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{2}==)$");
+                // item name is base64url
+                && itemName.matches("^([A-Za-z0-9-_]{4})*([A-Za-z0-9-_]{4}|[A-Za-z0-9-_]{3}=|[A-Za-z0-9-_]{2}==)$");
     }