From 5b3dd412d2e28f80fb2d12dbdcab992cc6f219a5 Mon Sep 17 00:00:00 2001
From: thomascube <thomas@roundcube.net>
Date: Tue, 15 Jul 2008 12:48:20 -0400
Subject: [PATCH] Check PERMANENTFLAGS before saving MDNSent flag (#1484963, #1485163)

---
 program/include/rcube_imap.php |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/program/include/rcube_imap.php b/program/include/rcube_imap.php
index 395a1b3..3daea0c 100644
--- a/program/include/rcube_imap.php
+++ b/program/include/rcube_imap.php
@@ -346,6 +346,21 @@
 
 
   /**
+   * Checks the PERMANENTFLAGS capability of the current mailbox
+   * and returns true if the given flag is supported by the IMAP server
+   *
+   * @param   string  Permanentflag name
+   * @return  mixed   True if this flag is supported
+   * @access  public
+   */
+  function check_permflag($flag)
+    {
+    $flagsmap = $GLOBALS['IMAP_FLAGS'];
+    return (($imap_flag = $flagsmap[strtoupper($flag)]) && in_array_nocase($imap_flag, $this->conn->permanentflags));
+    }
+
+
+  /**
    * Returns the delimiter that is used by the IMAP server for folder separation
    *
    * @return  string  Delimiter string

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