From e1567419411fbd56a3f3ac5f0a805b1e345fa0cc Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Mon, 28 Jul 2014 13:03:16 -0400
Subject: [PATCH] Fix bug where $Forwarded flag was being set even if server didn't support it (#1490000)

---
 CHANGELOG                                    |    1 +
 program/lib/Roundcube/rcube_imap_generic.php |   19 ++++++++++++++-----
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/CHANGELOG b/CHANGELOG
index 6ca2847..a6ade5b 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -40,6 +40,7 @@
 - Fix mbox files import
 - Fix some mime-type to extension mapping checks in Installer (#1489983)
 - Fix errors when using localStorage in Safari's private browsing mode (#1489996)
+- Fix bug where $Forwarded flag was being set even if server didn't support it (#1490000)
 
 RELEASE 1.0.2
 -------------
diff --git a/program/lib/Roundcube/rcube_imap_generic.php b/program/lib/Roundcube/rcube_imap_generic.php
index d76014f..a43dfee 100644
--- a/program/lib/Roundcube/rcube_imap_generic.php
+++ b/program/lib/Roundcube/rcube_imap_generic.php
@@ -2028,10 +2028,6 @@
      */
     protected function modFlag($mailbox, $messages, $flag, $mod = '+')
     {
-        if ($mod != '+' && $mod != '-') {
-            $mod = '+';
-        }
-
         if (!$this->select($mailbox)) {
             return false;
         }
@@ -2041,12 +2037,25 @@
             return false;
         }
 
+        if ($this->flags[strtoupper($flag)]) {
+            $flag = $this->flags[strtoupper($flag)];
+        }
+
+        if (!$flag || !in_array($flag, (array) $this->data['PERMANENTFLAGS'])
+            || !in_array('\\*', (array) $this->data['PERMANENTFLAGS'])
+        ) {
+            return false;
+        }
+
         // Clear internal status cache
         if ($flag == 'SEEN') {
             unset($this->data['STATUS:'.$mailbox]['UNSEEN']);
         }
 
-        $flag   = $this->flags[strtoupper($flag)];
+        if ($mod != '+' && $mod != '-') {
+            $mod = '+';
+        }
+
         $result = $this->execute('UID STORE', array(
             $this->compressMessageSet($messages), $mod . 'FLAGS.SILENT', "($flag)"),
             self::COMMAND_NORESPONSE);

--
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