From 0e99d37a18cf81b549b8fc7e8948e9bd338deaad Mon Sep 17 00:00:00 2001
From: thomascube <thomas@roundcube.net>
Date: Mon, 01 Jun 2009 11:35:53 -0400
Subject: [PATCH] Use event system on the client to handle ajax callbacks

---
 program/include/rcube_vcard.php |   25 ++++++++++++++++++-------
 1 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/program/include/rcube_vcard.php b/program/include/rcube_vcard.php
index 5ce1d36..c9ff49f 100644
--- a/program/include/rcube_vcard.php
+++ b/program/include/rcube_vcard.php
@@ -5,7 +5,7 @@
  | program/include/rcube_vcard.php                                       |
  |                                                                       |
  | This file is part of the RoundCube Webmail client                     |
- | Copyright (C) 2008, RoundCube Dev. - Switzerland                      |
+ | Copyright (C) 2008-2009, RoundCube Dev. - Switzerland                 |
  | Licensed under the GNU GPL                                            |
  |                                                                       |
  | PURPOSE:                                                              |
@@ -172,6 +172,7 @@
     $encoding = self::detect_encoding($data);
     if ($encoding && $encoding != RCMAIL_CHARSET) {
       $data = rcube_charset_convert($data, $encoding);
+      $data = preg_replace(array('/^[\xFE\xFF]{2}/', '/^\xEF\xBB\xBF/', '/^\x00+/'), '', $data); // also remove BOM
     }
 
     $vcard_block = '';
@@ -225,10 +226,14 @@
     return $vcard;
   }
 
+  private static function rfc2425_fold_callback($matches)
+  {
+    return ":\n  ".rtrim(chunk_split($matches[1], 72, "\n  "));
+  }
 
   private static function rfc2425_fold($val)
   {
-    return preg_replace('/:([^\n]{72,})/e', '":\n  ".rtrim(chunk_split("\\1", 72, "\n  "))', $val) . "\n";
+    return preg_replace_callback('/:([^\n]{72,})/', array('self', 'rfc2425_fold_callback'), $val) . "\n";
   }
 
 
@@ -258,15 +263,15 @@
           $line[1] .= ';' . (strpos($prop, '=') ? $prop : 'TYPE='.$prop);
       }
 
-      if (!preg_match('/^(BEGIN|END)$/', $line[1]) && preg_match_all('/([^\\;]+);?/', $line[1], $regs2)) {
+      if (!preg_match('/^(BEGIN|END)$/i', $line[1]) && preg_match_all('/([^\\;]+);?/', $line[1], $regs2)) {
         $entry = array('');
-        $field = $regs2[1][0];
+        $field = strtoupper($regs2[1][0]);
 
         foreach($regs2[1] as $attrid => $attr) {
           if ((list($key, $value) = explode('=', $attr)) && $value) {
             if ($key == 'ENCODING') {
               # add next line(s) to value string if QP line end detected
-              while ($value == 'QUOTED-PRINTABLE' && ereg('=$', $lines[$i]))
+              while ($value == 'QUOTED-PRINTABLE' && preg_match('/=$/', $lines[$i]))
                   $line[2] .= "\n" . $lines[++$i];
               
               $line[2] = self::decode_value($line[2], $value);
@@ -409,7 +414,13 @@
     if (substr($string, 0, 2) == "\xFF\xFE")     return 'UTF-16LE';  // Little Endian
     if (substr($string, 0, 3) == "\xEF\xBB\xBF") return 'UTF-8';
 
-    if ($enc = rc_detect_encoding($string))
+    // use mb_detect_encoding()
+    $encodings = array('UTF-8', 'ISO-8859-1', 'ISO-8859-2', 'ISO-8859-3',
+      'ISO-8859-4', 'ISO-8859-5', 'ISO-8859-6', 'ISO-8859-7', 'ISO-8859-8', 'ISO-8859-9',
+      'ISO-8859-10', 'ISO-8859-13', 'ISO-8859-14', 'ISO-8859-15', 'ISO-8859-16',
+      'WINDOWS-1252', 'WINDOWS-1251', 'BIG5', 'GB2312');
+
+    if (function_exists('mb_detect_encoding') && ($enc = mb_detect_encoding($string, $encodings)))
       return $enc;
 
     // No match, check for UTF-8
@@ -426,7 +437,7 @@
         )*\z/xs', substr($string, 0, 2048)))
       return 'UTF-8';
 
-    return 'ISO-8859-1'; # fallback to Latin-1
+    return rcmail::get_instance()->config->get('default_charset', 'ISO-8859-1'); # fallback to Latin-1
   }
 
 }

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