From ec74645d46b205b83e51c061b2a48af21d898d26 Mon Sep 17 00:00:00 2001
From: alecpl <alec@alec.pl>
Date: Fri, 06 Mar 2009 15:52:21 -0500
Subject: [PATCH] - Use US-ASCII as failover when Unicode searching fails (#1485762) only US-ASCII is a must-have charset from IMAP's RFC
---
program/include/rcube_imap.php | 11 ++++++-----
1 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/program/include/rcube_imap.php b/program/include/rcube_imap.php
index 3dbd35d..dbae4e8 100644
--- a/program/include/rcube_imap.php
+++ b/program/include/rcube_imap.php
@@ -955,11 +955,11 @@
$results = $this->_search_index($mailbox, $str, $charset, $sort_field);
- // try search with ISO charset (should be supported by server)
+ // try search with US-ASCII charset (should be supported by server)
// only if UTF-8 search is not supported
- if (empty($results) && !is_array($results) && !empty($charset) && $charset!='ISO-8859-1')
+ if (empty($results) && !is_array($results) && !empty($charset) && $charset!='US-ASCII')
{
- // convert strings to ISO-8859-1
+ // convert strings to US_ASCII
if(preg_match_all('/\{([0-9]+)\}\r\n/', $str, $matches, PREG_OFFSET_CAPTURE))
{
$last = 0; $res = '';
@@ -967,7 +967,8 @@
{
$string_offset = $m[1] + strlen($m[0]) + 4; // {}\r\n
$string = substr($str, $string_offset - 1, $m[0]);
- $string = rcube_charset_convert($string, $charset, 'ISO-8859-1');
+ $string = rcube_charset_convert($string, $charset, 'US-ASCII');
+ if (!$string) continue;
$res .= sprintf("%s{%d}\r\n%s", substr($str, $last, $m[1] - $last - 1), strlen($string), $string);
$last = $m[0] + $string_offset - 1;
}
@@ -977,7 +978,7 @@
else // strings for conversion not found
$res = $str;
- $results = $this->search($mbox_name, $res, 'ISO-8859-1', $sort_field);
+ $results = $this->search($mbox_name, $res, '', $sort_field);
}
$this->set_search_set($str, $results, $charset, $sort_field);
--
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