From 3a0dc87856cc0c2a47649e58e930621506e64cbf Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Sun, 5 May 2013 16:38:58 +0200
Subject: Fix backslash character handling on vCard import (#1489085)

---
 program/lib/Roundcube/rcube_vcard.php | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

(limited to 'program/lib/Roundcube/rcube_vcard.php')

diff --git a/program/lib/Roundcube/rcube_vcard.php b/program/lib/Roundcube/rcube_vcard.php
index 54bb9521d..cc3a35850 100644
--- a/program/lib/Roundcube/rcube_vcard.php
+++ b/program/lib/Roundcube/rcube_vcard.php
@@ -784,9 +784,30 @@ class rcube_vcard
                 }
                 return $result;
             }
+
+            $s = strtr($s, $rep2);
+        }
+
+        // some implementations (GMail) use non-standard backslash before colon (#1489085)
+        // we will handle properly any backslashed character - removing dummy backslahes
+        // return strtr($s, array("\r" => '', '\\\\' => '\\', '\n' => "\n", '\N' => "\n", '\,' => ',', '\;' => ';'));
+
+        $s   = str_replace("\r", '', $s);
+        $pos = 0;
+
+        while (($pos = strpos($s, '\\', $pos)) !== false) {
+            $next = substr($s, $pos + 1, 1);
+            if ($next == 'n' || $next == 'N') {
+                $s = substr_replace($s, "\n", $pos, 2);
+            }
+            else {
+                $s = substr_replace($s, '', $pos, 1);
+            }
+
+            $pos += 1;
         }
 
-        return strtr($s, array("\r" => '', '\\\\' => '\\', '\n' => "\n", '\N' => "\n", '\,' => ',', '\;' => ';'));
+        return $s;
     }
 
     /**
-- 
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