From eb318205fcebe671f20a62a6e5e1d81622e0586f Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Tue, 18 Aug 2015 07:57:19 -0400
Subject: [PATCH] Fix compatibility with Mail_Mime >= 1.9.0

---
 program/lib/Roundcube/rcube.php |   51 ++++++++++++++++++++++++++++++---------------------
 CHANGELOG                       |    1 +
 2 files changed, 31 insertions(+), 21 deletions(-)

diff --git a/CHANGELOG b/CHANGELOG
index fdb956b..f7a0c01 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,7 @@
 ===========================
 
 - Get rid of Mail_mimeDecode package dependency (#1490416)
+- Fix compatibility with Net_SMTP > 1.6.3 and Mail_Mime >= 1.9.0
 - Fix SQL error on logout when using session_storage=php (#1490421)
 - Fix so plain text signature field uses monospace font (#1490435)
 - Fix draft removal after a message is sent and storing sent message is disabled (#1490467)
diff --git a/program/lib/Roundcube/rcube.php b/program/lib/Roundcube/rcube.php
index 62663b2..9ea0681 100644
--- a/program/lib/Roundcube/rcube.php
+++ b/program/lib/Roundcube/rcube.php
@@ -1465,13 +1465,8 @@
             if (strlen($headers['Bcc']))
                 $a_recipients[] = $headers['Bcc'];
 
-            // clean Bcc from header for recipients
-            $send_headers = $headers;
-            unset($send_headers['Bcc']);
-            // here too, it because txtHeaders() below use $message->_headers not only $send_headers
-            unset($message->_headers['Bcc']);
-
-            $smtp_headers = $message->txtHeaders($send_headers, true);
+            // remove Bcc header and get the whole head of the message as string
+            $smtp_headers = $this->message_head($message, array('Bcc'));
 
             if ($message->getParam('delay_file_io')) {
                 // use common temp dir
@@ -1508,19 +1503,13 @@
         }
         // send mail using PHP's mail() function
         else {
-            // unset some headers because they will be added by the mail() function
-            $headers_enc = $message->headers($headers);
-            $headers_php = $message->_headers;
-            unset($headers_php['To'], $headers_php['Subject']);
-
-            // reset stored headers and overwrite
-            $message->_headers = array();
-            $header_str = $message->txtHeaders($headers_php);
+            // unset To,Subject headers because they will be added by the mail() function
+            $header_str = $this->message_head($message, array('To', 'Subject'));
 
             // #1485779
             if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
-                if (preg_match_all('/<([^@]+@[^>]+)>/', $headers_enc['To'], $m)) {
-                    $headers_enc['To'] = implode(', ', $m[1]);
+                if (preg_match_all('/<([^@]+@[^>]+)>/', $headers['To'], $m)) {
+                    $headers['To'] = implode(', ', $m[1]);
                 }
             }
 
@@ -1534,8 +1523,8 @@
             }
             else {
                 $delim   = $this->config->header_delimiter();
-                $to      = $headers_enc['To'];
-                $subject = $headers_enc['Subject'];
+                $to      = $headers['To'];
+                $subject = $headers['Subject'];
                 $header_str = rtrim($header_str);
 
                 if ($delim != "\r\n") {
@@ -1588,12 +1577,32 @@
             fclose($msg_body);
         }
 
-        $message->_headers = array();
-        $message->headers($headers);
+        $message->headers($headers, true);
 
         return $sent;
     }
 
+    /**
+     * Return message headers as a string
+     */
+    protected function message_head($message, $unset = array())
+    {
+        // Mail_mime >= 1.9.0
+        if (method_exists($message, 'isMultipart')) {
+            foreach ($unset as $header) {
+                $headers[$header] = null;
+            }
+        }
+        else {
+            $headers = $message->headers();
+            foreach ($unset as $header) {
+                unset($headers[$header]);
+            }
+            $message->_headers = array();
+        }
+
+        return $message->txtHeaders($headers, true);
+    }
 }
 
 

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