IMAP: improve invalid message header test

git-svn-id: http://svn.code.sf.net/p/davmail/code/trunk@2151 3d1905a2-6b24-0410-a738-b14d5a86fcbd
10 years ago · 2fe8bf6ce7
parent c035b094c4
commit 2fe8bf6ce7
1 changed files with 2 additions and 2 deletions
--- a/src/java/davmail/exchange/dav/DavExchangeSession.java
+++ b/src/java/davmail/exchange/dav/DavExchangeSession.java
@ -1089,10 +1089,10 @@ public class DavExchangeSession extends ExchangeSession {
                    final String MS_HEADER = "Microsoft Mail Internet Headers Version 2.0";
                    if (messageHeaders.startsWith(MS_HEADER)) {
                        messageHeaders = messageHeaders.substring(MS_HEADER.length());
-                        if (messageHeaders.charAt(0) == '\r') {
+                        if (!messageHeaders.isEmpty() && messageHeaders.charAt(0) == '\r') {
                            messageHeaders = messageHeaders.substring(1);
                        }
-                        if (messageHeaders.charAt(0) == '\n') {
+                        if (!messageHeaders.isEmpty() && messageHeaders.charAt(0) == '\n') {
                            messageHeaders = messageHeaders.substring(1);
                        }
                    }