From 5de338e45ebca0d055e0bb2a8df4db20fa61c6de Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Sat, 17 Oct 2015 07:38:36 -0400
Subject: [PATCH] Update changelog

---
 program/lib/Roundcube/rcube.php |   51 ++++++++++++++++++++++++++++++++++-----------------
 1 files changed, 34 insertions(+), 17 deletions(-)

diff --git a/program/lib/Roundcube/rcube.php b/program/lib/Roundcube/rcube.php
index 1e3b366..2335761 100644
--- a/program/lib/Roundcube/rcube.php
+++ b/program/lib/Roundcube/rcube.php
@@ -1027,15 +1027,14 @@
      */
     public function get_request_token()
     {
-        $sess_id = $_COOKIE[ini_get('session.name')];
-        if (!$sess_id) {
-            $sess_id = session_id();
+        if (empty($_SESSION['request_token'])) {
+            $plugin = $this->plugins->exec_hook('request_token', array(
+                'value' => rcube_utils::random_bytes(32)));
+
+            $_SESSION['request_token'] = $plugin['value'];
         }
 
-        $plugin = $this->plugins->exec_hook('request_token', array(
-            'value' => md5('RT' . $this->get_user_id() . $this->config->get('des_key') . $sess_id)));
-
-        return $plugin['value'];
+        return $_SESSION['request_token'];
     }
 
 
@@ -1671,8 +1670,7 @@
                 $a_recipients[] = $headers['Bcc'];
 
             // remove Bcc header and get the whole head of the message as string
-            $send_headers = array('Bcc' => null);
-            $smtp_headers = $message->txtHeaders($send_headers, true);
+            $smtp_headers = $this->message_head($message, array('Bcc'));
 
             if ($message->getParam('delay_file_io')) {
                 // use common temp dir
@@ -1712,15 +1710,13 @@
         }
         // send mail using PHP's mail() function
         else {
-            // unset some headers because they will be added by the mail() function
-            $headers_enc = $headers;
-            $headers_res = array('To' => null, 'Subject' => null);
-            $header_str  = $message->txtHeaders($headers_res, true);
+            // 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]);
                 }
             }
 
@@ -1734,8 +1730,8 @@
             }
             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") {
@@ -1793,6 +1789,27 @@
         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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