From 037af6890fe6fdb84a08d3c86083e847c90ec0ad Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Tue, 22 Oct 2013 08:17:26 -0400
Subject: [PATCH] Fix vulnerability in handling _session argument of utils/save-prefs (#1489382)

---
 program/steps/mail/sendmail.inc |  919 ++++++++++++++++++++++++++++++++++++++++++++++----------
 1 files changed, 748 insertions(+), 171 deletions(-)

diff --git a/program/steps/mail/sendmail.inc b/program/steps/mail/sendmail.inc
index bacb1b1..b1f5aeb 100644
--- a/program/steps/mail/sendmail.inc
+++ b/program/steps/mail/sendmail.inc
@@ -4,264 +4,841 @@
  +-----------------------------------------------------------------------+
  | program/steps/mail/sendmail.inc                                       |
  |                                                                       |
- | This file is part of the RoundCube Webmail client                     |
- | Copyright (C) 2005, RoundCube Dev. - Switzerland                      |
- | Licensed under the GNU GPL                                            |
+ | This file is part of the Roundcube Webmail client                     |
+ | Copyright (C) 2005-2011, The Roundcube Dev Team                       |
+ |                                                                       |
+ | Licensed under the GNU General Public License version 3 or            |
+ | any later version with exceptions for skins & plugins.                |
+ | See the README file for a full license statement.                     |
  |                                                                       |
  | PURPOSE:                                                              |
  |   Compose a new mail message with all headers and attachments         |
- |   and send it using IlohaMail's SMTP methods or with PHP mail()       |
+ |   and send it using the PEAR::Net_SMTP class or with PHP mail()       |
  |                                                                       |
  +-----------------------------------------------------------------------+
  | Author: Thomas Bruederli <roundcube@gmail.com>                        |
  +-----------------------------------------------------------------------+
-
- $Id$
-
 */
 
+// remove all scripts and act as called in frame
+$OUTPUT->reset();
+$OUTPUT->framed = TRUE;
 
-//require_once('lib/smtp.inc');
-require_once('include/rcube_smtp.inc');
-require_once('Mail/mime.php');
+$savedraft = !empty($_POST['_draft']) ? true : false;
 
+$COMPOSE_ID = get_input_value('_id', RCUBE_INPUT_GPC);
+$COMPOSE    =& $_SESSION['compose_data_'.$COMPOSE_ID];
 
-if (!isset($_SESSION['compose']['id']))
-  {
-  $_action = 'list';
-  return;
+/****** checks ********/
+
+if (!isset($COMPOSE['id'])) {
+  raise_error(array('code' => 500, 'type' => 'php',
+    'file' => __FILE__, 'line' => __LINE__,
+    'message' => "Invalid compose ID"), true, false);
+
+  $OUTPUT->show_message('internalerror', 'error');
+  $OUTPUT->send('iframe');
+}
+
+if (!$savedraft) {
+  if (empty($_POST['_to']) && empty($_POST['_cc']) && empty($_POST['_bcc'])
+    && empty($_POST['_subject']) && $_POST['_message']) {
+    $OUTPUT->show_message('sendingfailed', 'error');
+    $OUTPUT->send('iframe');
   }
+
+  if(!empty($CONFIG['sendmail_delay'])) {
+    $wait_sec = time() - intval($CONFIG['sendmail_delay']) - intval($CONFIG['last_message_time']);
+    if ($wait_sec < 0) {
+      $OUTPUT->show_message('senttooquickly', 'error', array('sec' => $wait_sec * -1));
+      $OUTPUT->send('iframe');
+    }
+  }
+}
 
 
 /****** message sending functions ********/
 
+// encrypt parts of the header
+function rcmail_encrypt_header($what)
+{
+  global $CONFIG, $RCMAIL;
+  if (!$CONFIG['http_received_header_encrypt']) {
+    return $what;
+  }
+  return $RCMAIL->encrypt($what);
+}
 
-
+// get identity record
 function rcmail_get_identity($id)
-  {
-  global $DB;
-  
-  // get identity record
-  $sql_result = $DB->query(sprintf("SELECT *, email AS mailto
-                                    FROM   %s
-                                    WHERE  identity_id=%d
-                                    AND    user_id=%d
-                                    AND    del!='1'",
-                                   get_table_name('identities'),
-                                   $id,
-                                   $_SESSION['user_id']));
-                                   
-  if ($DB->num_rows($sql_result))
-    {
-    $sql_arr = $DB->fetch_assoc($sql_result);
+{
+  global $RCMAIL, $message_charset;
+  global $RCMAIL;
+
+  if ($sql_arr = $RCMAIL->user->get_identity($id)) {
     $out = $sql_arr;
-    $out['string'] = sprintf('%s <%s>', $sql_arr['name'], $sql_arr['mailto']);
-    return $out;
+
+    if ($message_charset != RCMAIL_CHARSET) {
+      foreach ($out as $k => $v)
+        $out[$k] = rcube_charset_convert($v, RCMAIL_CHARSET, $message_charset);
     }
 
-  return FALSE;  
+    $out['mailto'] = $sql_arr['email'];
+    $out['string'] = format_email_recipient($sql_arr['email'], $sql_arr['name']);
+
+    return $out;
   }
 
+  return FALSE;
+}
+
+/**
+ * go from this:
+ * <img src="http[s]://.../tiny_mce/plugins/emotions/images/smiley-cool.gif" border="0" alt="Cool" title="Cool" />
+ *
+ * to this:
+ *
+ * <img src="/path/on/server/.../tiny_mce/plugins/emotions/images/smiley-cool.gif" border="0" alt="Cool" title="Cool" />
+ */
+function rcmail_fix_emoticon_paths($mime_message)
+{
+  global $RCMAIL;
+
+  $body = $mime_message->getHTMLBody();
+
+  // remove any null-byte characters before parsing
+  $body = preg_replace('/\x00/', '', $body);
+
+  $searchstr = 'program/js/tiny_mce/plugins/emotions/img/';
+  $offset = 0;
+
+  // keep track of added images, so they're only added once
+  $included_images = array();
+
+  if (preg_match_all('# src=[\'"]([^\'"]+)#', $body, $matches, PREG_OFFSET_CAPTURE)) {
+    foreach ($matches[1] as $m) {
+      // find emoticon image tags
+      if (preg_match('#'.$searchstr.'(.*)$#', $m[0], $imatches)) {
+        $image_name = $imatches[1];
+
+        // sanitize image name so resulting attachment doesn't leave images dir
+        $image_name = preg_replace('/[^a-zA-Z0-9_\.\-]/i', '', $image_name);
+        $img_file = INSTALL_PATH . '/' . $searchstr . $image_name;
+
+        if (! in_array($image_name, $included_images)) {
+          // add the image to the MIME message
+          if (!$mime_message->addHTMLImage($img_file, 'image/gif', '', true, $image_name)) {
+            $RCMAIL->output->show_message("emoticonerror", 'error');
+          }
+          array_push($included_images, $image_name);
+        }
+
+        $body = substr_replace($body, $img_file, $m[1] + $offset, strlen($m[0]));
+        $offset += strlen($img_file) - strlen($m[0]);
+      }
+    }
+  }
+
+  $mime_message->setHTMLBody($body);
+}
+
+/**
+ * Extract image attachments from HTML content (data URIs)
+ */
+function rcmail_extract_inline_images($mime_message, $from)
+{
+    $body   = $mime_message->getHTMLBody();
+    $offset = 0;
+    $list   = array();
+    $regexp = '# src=[\'"](data:(image/[a-z]+);base64,([a-z0-9+/=\r\n]+))([\'"])#i';
+
+    // get domain for the Content-ID, must be the same as in Mail_Mime::get()
+    if (preg_match('#@([0-9a-zA-Z\-\.]+)#', $from, $matches)) {
+        $domain = $matches[1];
+    } else {
+        $domain = 'localhost';
+    }
+
+    if (preg_match_all($regexp, $body, $matches, PREG_OFFSET_CAPTURE)) {
+        foreach ($matches[1] as $idx => $m) {
+            $data = preg_replace('/\r\n/', '', $matches[3][$idx][0]);
+            $data = base64_decode($data);
+
+            if (empty($data)) {
+                continue;
+            }
+
+            $hash      = md5($data) . '@' . $domain;
+            $mime_type = $matches[2][$idx][0];
+            $name      = $list[$hash];
+
+            // add the image to the MIME message
+            if (!$name) {
+                $ext         = preg_replace('#^[^/]+/#', '', $mime_type);
+                $name        = substr($hash, 0, 8) . '.' . $ext;
+                $list[$hash] = $name;
+
+                $mime_message->addHTMLImage($data, $mime_type, $name, false, $hash);
+            }
+
+            $body = substr_replace($body, $name, $m[1] + $offset, strlen($m[0]));
+            $offset += strlen($name) - strlen($m[0]);
+        }
+    }
+
+    $mime_message->setHTMLBody($body);
+}
+
+/**
+ * Parse and cleanup email address input (and count addresses)
+ *
+ * @param string  Address input
+ * @param boolean Do count recipients (saved in global $RECIPIENT_COUNT)
+ * @param boolean Validate addresses (errors saved in global $EMAIL_FORMAT_ERROR)
+ * @return string Canonical recipients string separated by comma
+ */
+function rcmail_email_input_format($mailto, $count=false, $check=true)
+{
+  global $RCMAIL, $EMAIL_FORMAT_ERROR, $RECIPIENT_COUNT;
+
+  // simplified email regexp, supporting quoted local part
+  $email_regexp = '(\S+|("[^"]+"))@\S+';
+
+  $delim = trim($RCMAIL->config->get('recipients_separator', ','));
+  $regexp  = array("/[,;$delim]\s*[\r\n]+/", '/[\r\n]+/', "/[,;$delim]\s*\$/m", '/;/', '/(\S{1})(<'.$email_regexp.'>)/U');
+  $replace = array($delim.' ', ', ', '', $delim, '\\1 \\2');
+
+  // replace new lines and strip ending ', ', make address input more valid
+  $mailto = trim(preg_replace($regexp, $replace, $mailto));
+
+  $result = array();
+  $items = rcube_explode_quoted_string($delim, $mailto);
+
+  foreach($items as $item) {
+    $item = trim($item);
+    // address in brackets without name (do nothing)
+    if (preg_match('/^<'.$email_regexp.'>$/', $item)) {
+      $item = rcube_idn_to_ascii(trim($item, '<>'));
+      $result[] = $item;
+    // address without brackets and without name (add brackets)
+    } else if (preg_match('/^'.$email_regexp.'$/', $item)) {
+      $item = rcube_idn_to_ascii($item);
+      $result[] = $item;
+    // address with name (handle name)
+    } else if (preg_match('/<*'.$email_regexp.'>*$/', $item, $matches)) {
+      $address = $matches[0];
+      $name = trim(str_replace($address, '', $item));
+      if ($name[0] == '"' && $name[count($name)-1] == '"') {
+        $name = substr($name, 1, -1);
+      }
+      $name = stripcslashes($name);
+      $address = rcube_idn_to_ascii(trim($address, '<>'));
+      $result[] = format_email_recipient($address, $name);
+      $item = $address;
+    } else if (trim($item)) {
+      continue;
+    }
+
+    // check address format
+    $item = trim($item, '<>');
+    if ($item && $check && !check_email($item)) {
+      $EMAIL_FORMAT_ERROR = $item;
+      return;
+    }
+  }
+
+  if ($count) {
+    $RECIPIENT_COUNT += count($result);
+  }
+
+  return implode(', ', $result);
+}
 
 
-/****** check submission and compose message ********/
+function rcmail_generic_message_footer($isHtml)
+{
+  global $CONFIG;
+
+  if ($isHtml && !empty($CONFIG['generic_message_footer_html'])) {
+    $file = $CONFIG['generic_message_footer_html'];
+    $html_footer = true;
+  }
+  else {
+    $file = $CONFIG['generic_message_footer'];
+    $html_footer = false;
+  }
+
+  if ($file && realpath($file)) {
+    // sanity check
+    if (!preg_match('/\.(php|ini|conf)$/', $file) && strpos($file, '/etc/') === false) {
+      $footer = file_get_contents($file);
+      if ($isHtml && !$html_footer)
+        $footer = '<pre>' . $footer . '</pre>';
+      return $footer;
+    }
+  }
+
+  return false;
+}
 
 
-$mailto_regexp = '/,\s*$/';
+/****** compose message ********/
 
-// trip ending ', ' from 
-$mailto = preg_replace($mailto_regexp, '', $_POST['_to']);
+if (strlen($_POST['_draft_saveid']) > 3)
+  $olddraftmessageid = get_input_value('_draft_saveid', RCUBE_INPUT_POST);
 
-// decode address strings
-$to_address_arr = $IMAP->decode_address_list($mailto);
-$identity_arr = rcmail_get_identity($_POST['_from']);
+$message_id = rcmail_gen_message_id();
 
+// set default charset
+$message_charset = isset($_POST['_charset']) ? $_POST['_charset'] : $OUTPUT->get_charset();
 
-$from = $identity_arr['mailto'];
-$first_to = is_array($to_address_arr[0]) ? $to_address_arr[0]['mailto'] : $mailto;
+$EMAIL_FORMAT_ERROR = NULL;
+$RECIPIENT_COUNT = 0;
 
+$mailto = rcmail_email_input_format(get_input_value('_to', RCUBE_INPUT_POST, TRUE, $message_charset), true);
+$mailcc = rcmail_email_input_format(get_input_value('_cc', RCUBE_INPUT_POST, TRUE, $message_charset), true);
+$mailbcc = rcmail_email_input_format(get_input_value('_bcc', RCUBE_INPUT_POST, TRUE, $message_charset), true);
 
-// create unique message-id
-$message_id = sprintf('<%s@%s>', md5(uniqid('rcmail')), $_SESSION['imap_host']);
+if ($EMAIL_FORMAT_ERROR) {
+  $OUTPUT->show_message('emailformaterror', 'error', array('email' => $EMAIL_FORMAT_ERROR));
+  $OUTPUT->send('iframe');
+}
 
+if (empty($mailto) && !empty($mailcc)) {
+  $mailto = $mailcc;
+  $mailcc = null;
+}
+else if (empty($mailto))
+  $mailto = 'undisclosed-recipients:;';
+
+// Get sender name and address...
+$from = get_input_value('_from', RCUBE_INPUT_POST, true, $message_charset);
+// ... from identity...
+if (is_numeric($from)) {
+  if (is_array($identity_arr = rcmail_get_identity($from))) {
+    if ($identity_arr['mailto'])
+      $from = $identity_arr['mailto'];
+    if ($identity_arr['string'])
+      $from_string = $identity_arr['string'];
+  }
+  else {
+    $from = null;
+  }
+}
+// ... if there is no identity record, this might be a custom from
+else if ($from_string = rcmail_email_input_format($from)) {
+  if (preg_match('/(\S+@\S+)/', $from_string, $m))
+    $from = trim($m[1], '<>');
+  else
+    $from = null;
+}
+
+if (!$from_string && $from)
+  $from_string = $from;
 
 // compose headers array
-$headers = array('Date' => date('D, j M Y G:i:s O'),
-                 'From' => $identity_arr['string'],
-                 'To'   => $mailto);
+$headers = array();
+
+// if configured, the Received headers goes to top, for good measure
+if ($CONFIG['http_received_header'])
+{
+  $nldlm = "\r\n\t";
+  // FROM/VIA
+  $http_header = 'from ';
+  if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
+    $host = $_SERVER['HTTP_X_FORWARDED_FOR'];
+    $hostname = gethostbyaddr($host);
+    if ($CONFIG['http_received_header_encrypt']) {
+      $http_header .= rcmail_encrypt_header($hostname);
+      if ($host != $hostname)
+        $http_header .= ' ('. rcmail_encrypt_header($host) . ')';
+    } else {
+      $http_header .= (($host != $hostname) ? $hostname : '[' . $host . ']');
+      if ($host != $hostname)
+        $http_header .= ' (['. $host .'])';
+    }
+    $http_header .= $nldlm . ' via ';
+  }
+  $host = $_SERVER['REMOTE_ADDR'];
+  $hostname = gethostbyaddr($host);
+  if ($CONFIG['http_received_header_encrypt']) {
+    $http_header .= rcmail_encrypt_header($hostname);
+    if ($host != $hostname)
+      $http_header .= ' ('. rcmail_encrypt_header($host) . ')';
+  } else {
+    $http_header .= (($host != $hostname) ? $hostname : '[' . $host . ']');
+    if ($host != $hostname)
+      $http_header .= ' (['. $host .'])';
+  }
+  // BY
+  $http_header .= $nldlm . 'by ' . $_SERVER['HTTP_HOST'];
+  // WITH
+  $http_header .= $nldlm . 'with HTTP (' . $_SERVER['SERVER_PROTOCOL'] .
+      ' '.$_SERVER['REQUEST_METHOD'] . '); ' . date('r');
+  $http_header = wordwrap($http_header, 69, $nldlm);
+
+  $headers['Received'] = $http_header;
+}
+
+$headers['Date'] = rcmail_user_date();
+$headers['From'] = rcube_charset_convert($from_string, RCMAIL_CHARSET, $message_charset);
+$headers['To'] = $mailto;
 
 // additional recipients
-if ($_POST['_cc'])
-  $headers['Cc'] = preg_replace($mailto_regexp, '', $_POST['_cc']);
-
-if ($_POST['_bcc'])
-  $headers['Bcc'] = preg_replace($mailto_regexp, '', $_POST['_bcc']);
-  
-if (strlen($identity_arr['bcc']))
+if (!empty($mailcc)) {
+  $headers['Cc'] = $mailcc;
+}
+if (!empty($mailbcc)) {
+  $headers['Bcc'] = $mailbcc;
+}
+if (!empty($identity_arr['bcc']) && stripos($headers['Bcc'], $identity_arr['bcc']) === false) {
   $headers['Bcc'] = ($headers['Bcc'] ? $headers['Bcc'].', ' : '') . $identity_arr['bcc'];
+  $RECIPIENT_COUNT ++;
+}
+
+if (($max_recipients = (int) $RCMAIL->config->get('max_recipients')) > 0) {
+  if ($RECIPIENT_COUNT > $max_recipients) {
+    $OUTPUT->show_message('toomanyrecipients', 'error', array('max' => $max_recipients));
+    $OUTPUT->send('iframe');
+  }
+}
 
 // add subject
-$headers['Subject'] = trim(stripslashes($_POST['_subject']));
+$headers['Subject'] = trim(get_input_value('_subject', RCUBE_INPUT_POST, TRUE, $message_charset));
 
-if (strlen($identity_arr['organization']))
+if (!empty($identity_arr['organization'])) {
   $headers['Organization'] = $identity_arr['organization'];
+}
+if (!empty($_POST['_replyto'])) {
+  $headers['Reply-To'] = rcmail_email_input_format(get_input_value('_replyto', RCUBE_INPUT_POST, TRUE, $message_charset));
+}
+else if (!empty($identity_arr['reply-to'])) {
+  $headers['Reply-To'] = rcmail_email_input_format($identity_arr['reply-to'], false, true);
+}
+if (!empty($headers['Reply-To'])) {
+  $headers['Mail-Reply-To'] = $headers['Reply-To'];
+}
+if (!empty($_POST['_followupto'])) {
+  $headers['Mail-Followup-To'] = rcmail_email_input_format(get_input_value('_followupto', RCUBE_INPUT_POST, TRUE, $message_charset));
+}
+if (!empty($COMPOSE['reply_msgid'])) {
+  $headers['In-Reply-To'] = $COMPOSE['reply_msgid'];
+}
 
-if (strlen($identity_arr['reply-to']))
-  $headers['Reply-To'] = $identity_arr['reply-to'];
+// remember reply/forward UIDs in special headers
+if (!empty($COMPOSE['reply_uid']) && $savedraft) {
+  $headers['X-Draft-Info'] = array('type' => 'reply', 'uid' => $COMPOSE['reply_uid']);
+}
+else if (!empty($COMPOSE['forward_uid']) && $savedraft) {
+  $headers['X-Draft-Info'] = array('type' => 'forward', 'uid' => $COMPOSE['forward_uid']);
+}
 
-if ($_SESSION['compose']['reply_msgid'])
-  $headers['In-Reply-To'] = $_SESSION['compose']['reply_msgid'];
+if (!empty($COMPOSE['references'])) {
+  $headers['References'] = $COMPOSE['references'];
+}
 
-
-if ($_POST['_priority'])
-  {
-  $priority = (int)$_POST['_priority'];
-  $a_priorities = array(1=>'lowest', 2=>'low', 4=>'high', 5=>'highest');
-  if ($str_priority = $a_priorities[$priority])
+if (!empty($_POST['_priority'])) {
+  $priority = intval($_POST['_priority']);
+  $a_priorities = array(1=>'highest', 2=>'high', 4=>'low', 5=>'lowest');
+  if ($str_priority = $a_priorities[$priority]) {
     $headers['X-Priority'] = sprintf("%d (%s)", $priority, ucfirst($str_priority));
   }
+}
 
+if (!empty($_POST['_receipt'])) {
+  $headers['Return-Receipt-To'] = $from_string;
+  $headers['Disposition-Notification-To'] = $from_string;
+}
 
 // additional headers
 $headers['Message-ID'] = $message_id;
 $headers['X-Sender'] = $from;
 
-if ($CONFIG['useragent'])
+if (is_array($headers['X-Draft-Info'])) {
+  $headers['X-Draft-Info'] = rcmail_draftinfo_encode($headers['X-Draft-Info'] + array('folder' => $COMPOSE['mailbox']));
+}
+if (!empty($CONFIG['useragent'])) {
   $headers['User-Agent'] = $CONFIG['useragent'];
+}
 
+// exec hook for header checking and manipulation
+// Depracated: use message_before_send hook instead
+$data = $RCMAIL->plugins->exec_hook('message_outgoing_headers', array('headers' => $headers));
+
+// sending aborted by plugin
+if ($data['abort'] && !$savedraft) {
+  $OUTPUT->show_message($data['message'] ? $data['message'] : 'sendingfailed');
+  $OUTPUT->send('iframe');
+}
+else
+  $headers = $data['headers'];
+
+
+$isHtml = (bool) get_input_value('_is_html', RCUBE_INPUT_POST);
+
+// fetch message body
+$message_body = get_input_value('_message', RCUBE_INPUT_POST, TRUE, $message_charset);
+
+if ($isHtml) {
+  $font   = rcube_fontdefs($RCMAIL->config->get('default_font'));
+  $bstyle = $font && is_string($font) ? " style='font-family: $font'" : '';
+
+  // append doctype and html/body wrappers
+  $message_body = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN">' .
+    "\r\n<html><body$bstyle>\r\n" . $message_body;
+}
+
+if (!$savedraft) {
+  if ($isHtml) {
+    // remove signature's div ID
+    $message_body = preg_replace('/\s*id="_rc_sig"/', '', $message_body);
+
+    // add inline css for blockquotes
+    $bstyle = 'padding-left:5px; border-left:#1010ff 2px solid; margin-left:5px';
+    $message_body = preg_replace('/<blockquote>/',
+      '<blockquote type="cite" style="'.$bstyle.'">', $message_body);
+  }
+
+  // Check spelling before send
+  if ($CONFIG['spellcheck_before_send'] && $CONFIG['enable_spellcheck']
+    && empty($COMPOSE['spell_checked']) && !empty($message_body)
+  ) {
+    $message_body = str_replace("\r\n", "\n", $message_body);
+    $spellchecker = new rcube_spellchecker(get_input_value('_lang', RCUBE_INPUT_GPC));
+    $spell_result = $spellchecker->check($message_body, $isHtml);
+
+    $COMPOSE['spell_checked'] = true;
+
+    if (!$spell_result) {
+      $result = $isHtml ? $spellchecker->get_words() : $spellchecker->get_xml();
+      $OUTPUT->show_message('mispellingsfound', 'error');
+      $OUTPUT->command('spellcheck_resume', $isHtml, $result);
+      $OUTPUT->send('iframe');
+    }
+  }
+
+  // generic footer for all messages
+  if ($footer = rcmail_generic_message_footer($isHtml)) {
+    $footer = rcube_charset_convert($footer, RCMAIL_CHARSET, $message_charset);
+    $message_body .= "\r\n" . $footer;
+  }
+}
+
+if ($isHtml) {
+  $message_body .= "\r\n</body></html>\r\n";
+}
+
+// sort attachments to make sure the order is the same as in the UI (#1488423)
+$files = get_input_value('_attachments', RCUBE_INPUT_POST);
+if ($files) {
+  $files = explode(',', $files);
+  $files = array_flip($files);
+  foreach ($files as $idx => $val) {
+    $files[$idx] = $COMPOSE['attachments'][$idx];
+    unset($COMPOSE['attachments'][$idx]);
+  }
+
+  $COMPOSE['attachments'] = array_merge(array_filter($files), $COMPOSE['attachments']);
+}
+
+// set line length for body wrapping
+$LINE_LENGTH = $RCMAIL->config->get('line_length', 72);
+
+// Since we can handle big messages with disk usage, we need more time to work
+@set_time_limit(0);
 
 // create PEAR::Mail_mime instance
-$MAIL_MIME = new Mail_mime();
-$MAIL_MIME->setTXTBody(stripslashes($_POST['_message']), FALSE, TRUE);
-//$MAIL_MIME->setTXTBody(wordwrap(stripslashes($_POST['_message'])), FALSE, TRUE);
+$MAIL_MIME = new Mail_mime("\r\n");
 
+// Check if we have enough memory to handle the message in it
+// It's faster than using files, so we'll do this if we only can
+if (is_array($COMPOSE['attachments']) && $CONFIG['smtp_server']
+  && ($mem_limit = parse_bytes(ini_get('memory_limit'))))
+{
+  $memory = function_exists('memory_get_usage') ? memory_get_usage() : 16*1024*1024; // safe value: 16MB
+
+  foreach ($COMPOSE['attachments'] as $id => $attachment)
+    $memory += $attachment['size'];
+
+  // Yeah, Net_SMTP needs up to 12x more memory, 1.33 is for base64
+  if ($memory * 1.33 * 12 > $mem_limit)
+    $MAIL_MIME->setParam('delay_file_io', true);
+}
+
+// For HTML-formatted messages, construct the MIME message with both
+// the HTML part and the plain-text part
+
+if ($isHtml) {
+  $plugin = $RCMAIL->plugins->exec_hook('message_outgoing_body',
+    array('body' => $message_body, 'type' => 'html', 'message' => $MAIL_MIME));
+
+  $MAIL_MIME->setHTMLBody($plugin['body']);
+
+  // replace emoticons
+  $plugin['body'] = rcmail_replace_emoticons($plugin['body']);
+
+  // add a plain text version of the e-mail as an alternative part.
+  $h2t = new rcube_html2text($plugin['body'], false, true, 0, $message_charset);
+  $plainTextPart = rc_wordwrap($h2t->get_text(), $LINE_LENGTH, "\r\n", false, $message_charset);
+  $plainTextPart = wordwrap($plainTextPart, 998, "\r\n", true);
+
+  // make sure all line endings are CRLF (#1486712)
+  $plainTextPart = preg_replace('/\r?\n/', "\r\n", $plainTextPart);
+
+  $plugin = $RCMAIL->plugins->exec_hook('message_outgoing_body',
+    array('body' => $plainTextPart, 'type' => 'alternative', 'message' => $MAIL_MIME));
+
+  $MAIL_MIME->setTXTBody($plugin['body']);
+
+  // look for "emoticon" images from TinyMCE and change their src paths to
+  // be file paths on the server instead of URL paths.
+  rcmail_fix_emoticon_paths($MAIL_MIME);
+
+  // Extract image Data URIs into message attachments (#1488502)
+  rcmail_extract_inline_images($MAIL_MIME, $from);
+}
+else {
+  $plugin = $RCMAIL->plugins->exec_hook('message_outgoing_body',
+    array('body' => $message_body, 'type' => 'plain', 'message' => $MAIL_MIME));
+
+  $message_body = $plugin['body'];
+
+  // compose format=flowed content if enabled
+  if ($flowed = ($savedraft || $RCMAIL->config->get('send_format_flowed', true)))
+    $message_body = rcube_mime::format_flowed($message_body, min($LINE_LENGTH+2, 79), $message_charset);
+  else
+    $message_body = rc_wordwrap($message_body, $LINE_LENGTH, "\r\n", false, $message_charset);
+
+  $message_body = wordwrap($message_body, 998, "\r\n", true);
+
+  $MAIL_MIME->setTXTBody($message_body, false, true);
+}
 
 // add stored attachments, if any
-if (is_array($_SESSION['compose']['attachments']))
-  foreach ($_SESSION['compose']['attachments'] as $attachment)
-    $MAIL_MIME->addAttachment($attachment['path'], $attachment['mimetype'], $attachment['name'], TRUE);
+if (is_array($COMPOSE['attachments']))
+{
+  foreach ($COMPOSE['attachments'] as $id => $attachment) {
+    // This hook retrieves the attachment contents from the file storage backend
+    $attachment = $RCMAIL->plugins->exec_hook('attachment_get', $attachment);
 
-  
-// add submitted attachments
-if (is_array($_FILES['_attachments']['tmp_name']))
-  foreach ($_FILES['_attachments']['tmp_name'] as $i => $filepath)
-    $MAIL_MIME->addAttachment($filepath, $files['type'][$i], $files['name'][$i], TRUE);
+    $dispurl = '/\ssrc\s*=\s*[\'"]*\S+display-attachment\S+file=rcmfile' . preg_quote($attachment['id']) . '[\s\'"]*/';
+    $message_body = $MAIL_MIME->getHTMLBody();
+    if ($isHtml && (preg_match($dispurl, $message_body) > 0)) {
+      $message_body = preg_replace($dispurl, ' src="'.$attachment['name'].'" ', $message_body);
+      $MAIL_MIME->setHTMLBody($message_body);
+
+      if ($attachment['data'])
+        $MAIL_MIME->addHTMLImage($attachment['data'], $attachment['mimetype'], $attachment['name'], false);
+      else
+        $MAIL_MIME->addHTMLImage($attachment['path'], $attachment['mimetype'], $attachment['name'], true);
+    }
+    else {
+      $ctype = str_replace('image/pjpeg', 'image/jpeg', $attachment['mimetype']); // #1484914
+      $file = $attachment['data'] ? $attachment['data'] : $attachment['path'];
+
+      $MAIL_MIME->addAttachment($file,
+        $ctype,
+        $attachment['name'],
+        ($attachment['data'] ? false : true),
+        ($ctype == 'message/rfc822' ? '8bit' : 'base64'),
+        'attachment',
+        '', '', '',
+        $CONFIG['mime_param_folding'] ? 'quoted-printable' : NULL,
+        $CONFIG['mime_param_folding'] == 2 ? 'quoted-printable' : NULL,
+        '', RCMAIL_CHARSET
+      );
+    }
+  }
+}
+
+// choose transfer encoding for plain/text body
+if (preg_match('/[^\x00-\x7F]/', $MAIL_MIME->getTXTBody()))
+  $transfer_encoding = $RCMAIL->config->get('force_7bit') ? 'quoted-printable' : '8bit';
+else
+  $transfer_encoding = '7bit';
 
 // encoding settings for mail composing
-$message_param = array('text_encoding' => '7bit',
-                       'html_encoding' => 'quoted-printable',
-                       'head_encoding' => 'quoted-printable',
-                       'head_charset'  => 'ISO-8859-1',
-                       'html_charset'  => 'ISO-8859-1',
-                       'text_charset'  => 'ISO-8859-1');
+$MAIL_MIME->setParam('text_encoding', $transfer_encoding);
+$MAIL_MIME->setParam('html_encoding', 'quoted-printable');
+$MAIL_MIME->setParam('head_encoding', 'quoted-printable');
+$MAIL_MIME->setParam('head_charset', $message_charset);
+$MAIL_MIME->setParam('html_charset', $message_charset);
+$MAIL_MIME->setParam('text_charset', $message_charset . ($flowed ? ";\r\n format=flowed" : ''));
 
-// compose message body and get headers
-$msg_body = $MAIL_MIME->get($message_param);
-$msg_subject = $headers['Subject'];
+// encoding subject header with mb_encode provides better results with asian characters
+if (function_exists('mb_encode_mimeheader')) {
+  mb_internal_encoding($message_charset);
+  $headers['Subject'] = mb_encode_mimeheader($headers['Subject'],
+    $message_charset, 'Q', "\r\n", 8);
+  mb_internal_encoding(RCMAIL_CHARSET);
+}
 
+// pass headers to message object
+$MAIL_MIME->headers($headers);
 
-// send thru SMTP server using cusotm SMTP library
-if ($CONFIG['smtp_server'])
-  {
-  // generate list of recipients
-  $a_recipients = array($mailto);
+// Begin SMTP Delivery Block
+if (!$savedraft)
+{
+  // check 'From' address (identity may be incomplete)
+  if (empty($from)) {
+    $OUTPUT->show_message('nofromaddress', 'error');
+    $OUTPUT->send('iframe');
+  }
 
-  if (strlen($headers['Cc']))
-    $a_recipients[] = $headers['Cc'];
-  if (strlen($headers['Bcc']))
-    $a_recipients[] = $headers['Bcc'];
+  // Handle Delivery Status Notification request
+  if (!empty($_POST['_dsn'])) {
+    $smtp_opts['dsn'] = true;
+  }
 
-  // generate message headers
-  $header_str = $MAIL_MIME->txtHeaders($headers);
+  $sent = rcmail_deliver_message($MAIL_MIME, $from, $mailto,
+    $smtp_error, $mailbody_file, $smtp_opts);
 
-  // send message
-  $sent = smtp_mail($from, $a_recipients, $header_str, $msg_body);
-
-  // log error
-  if (!$sent)
-    {
-    raise_error(array('code' => 800,
-                      'type' => 'smtp',
-                      'line' => __LINE__,
-                      'file' => __FILE__,
-                      'message' => "SMTP error: $SMTP_ERROR"), TRUE, FALSE);
+  // return to compose page if sending failed
+  if (!$sent) {
+    // remove temp file
+    if ($mailbody_file) {
+      unlink($mailbody_file);
     }
+
+    if ($smtp_error)
+      $OUTPUT->show_message($smtp_error['label'], 'error', $smtp_error['vars']); 
+    else
+      $OUTPUT->show_message('sendingfailed', 'error'); 
+    $OUTPUT->send('iframe');
   }
 
-// send mail using PHP's mail() function
-else
-  {
-  // unset some headers because they will be added by the mail() function
-  $headers_php = $headers;
-  unset($headers_php['To'], $headers_php['Subject']);
+  // save message sent time
+  if (!empty($CONFIG['sendmail_delay']))
+    $RCMAIL->user->save_prefs(array('last_message_time' => time()));
 
-  $header_str = $MAIL_MIME->txtHeaders($headers_php);
-  $sent = mail($mailto, $msg_subject, $msg_body, $header_str, "-f$from");
-  }
+  // set replied/forwarded flag
+  if ($COMPOSE['reply_uid'])
+    $RCMAIL->storage->set_flag($COMPOSE['reply_uid'], 'ANSWERED', $COMPOSE['mailbox']);
+  else if ($COMPOSE['forward_uid'])
+    $RCMAIL->storage->set_flag($COMPOSE['forward_uid'], 'FORWARDED', $COMPOSE['mailbox']);
+
+} // End of SMTP Delivery Block
 
 
-// return to compose page if sending failed
-if (!$sent)
-  {
-  $_action = 'compose';
-  $OUTPUT->add_script(sprintf("\n%s.set_env('action', '%s');", $JS_OBJECT_NAME, $_action));
-  show_message("sendingfailed", 'error'); 
-  return;
-  }
+// Determine which folder to save message
+if ($savedraft)
+  $store_target = $CONFIG['drafts_mbox'];
+else if (!$RCMAIL->config->get('no_save_sent_messages'))
+  $store_target = isset($_POST['_store_target']) ? get_input_value('_store_target', RCUBE_INPUT_POST) : $CONFIG['sent_mbox'];
 
-
-// set repliead flag
-if ($_SESSION['compose']['reply_uid'])
-  $IMAP->set_flag($_SESSION['compose']['reply_uid'], 'ANSWERED');
-
-
-// copy message to sent folder
-if ($CONFIG['sent_mbox'])
-  {
-  // create string of complete message headers
-  $header_str = $MAIL_MIME->txtHeaders($headers);
-
-  // check if mailbox exists
-  if (!in_array_nocase($CONFIG['sent_mbox'], $IMAP->list_mailboxes()))
-    $mbox = $IMAP->create_mailbox($CONFIG['sent_mbox'], TRUE);
-  else
-    $mbox = TRUE;
+if ($store_target) {
+  // check if folder is subscribed
+  if ($RCMAIL->storage->folder_exists($store_target, true))
+    $store_folder = true;
+  // folder may be existing but not subscribed (#1485241)
+  else if (!$RCMAIL->storage->folder_exists($store_target))
+    $store_folder = $RCMAIL->storage->create_folder($store_target, true);
+  else if ($RCMAIL->storage->subscribe($store_target))
+    $store_folder = true;
 
   // append message to sent box
-  if ($mbox)
-    $saved = $IMAP->save_message($CONFIG['sent_mbox'], $header_str."\r\n".$msg_body);
+  if ($store_folder) {
+    // message body in file
+    if ($mailbody_file || $MAIL_MIME->getParam('delay_file_io')) {
+      $headers = $MAIL_MIME->txtHeaders();
 
-  // raise error if saving failed
-  if (!$saved)
-    raise_error(array('code' => 800,
-                      'type' => 'imap',
-                      'file' => __FILE__,
-                      'message' => "Could not save message in $CONFIG[sent_mbox]"), TRUE, FALSE);
-  }
+      // file already created
+      if ($mailbody_file)
+        $msg = $mailbody_file;
+      else {
+        $temp_dir = $RCMAIL->config->get('temp_dir');
+        $mailbody_file = tempnam($temp_dir, 'rcmMsg');
+        if (!PEAR::isError($msg = $MAIL_MIME->saveMessageBody($mailbody_file)))
+          $msg = $mailbody_file;
+      }
+    }
+    else {
+      $msg = $MAIL_MIME->getMessage();
+      $headers = '';
+    }
 
+    if (PEAR::isError($msg))
+      raise_error(array('code' => 650, 'type' => 'php',
+	    'file' => __FILE__, 'line' => __LINE__,
+            'message' => "Could not create message: ".$msg->getMessage()),
+            TRUE, FALSE);
+    else {
+      $saved = $RCMAIL->storage->save_message($store_target, $msg, $headers,
+        $mailbody_file ? true : false, array('SEEN'));
+    }
 
-// log mail sending
-if ($CONFIG['smtp_log'])
-  {
-  $log_entry = sprintf("[%s] User: %d; Message for %s; Subject: %s\n",
-               date("d-M-Y H:i:s O", mktime()),
-               $_SESSION['user_id'],
-               $mailto,
-               $msg_subject);
-
-  if ($fp = fopen($INSTALL_PATH.'logs/sendmail', 'a'))
-    {
-    fwrite($fp, $log_entry);
-    fclose($fp);
+    if ($mailbody_file) {
+      unlink($mailbody_file);
+      $mailbody_file = null;
     }
   }
 
+  // raise error if saving failed
+  if (!$saved) {
+    raise_error(array('code' => 800, 'type' => 'imap',
+       'file' => __FILE__, 'line' => __LINE__,
+       'message' => "Could not save message in $store_target"), TRUE, FALSE);
 
-// show confirmation
-show_message('messagesent', 'confirmation');
+    if ($savedraft) {
+      $OUTPUT->show_message('errorsaving', 'error');
+      // start the auto-save timer again
+      $OUTPUT->command('auto_save_start');
+      $OUTPUT->send('iframe');
+    }
+  }
+
+  if ($olddraftmessageid) {
+    // delete previous saved draft
+    // @TODO: use message UID (remember to check UIDVALIDITY) to skip this SEARCH
+    $delete_idx = $RCMAIL->storage->search_once($CONFIG['drafts_mbox'],
+        'HEADER Message-ID '.$olddraftmessageid);
+
+    if ($del_uid = $delete_idx->get_element('FIRST')) {
+      $deleted = $RCMAIL->storage->delete_message($del_uid, $CONFIG['drafts_mbox']);
+
+      // raise error if deletion of old draft failed
+      if (!$deleted)
+        raise_error(array('code' => 800, 'type' => 'imap',
+          'file' => __FILE__, 'line' => __LINE__,
+          'message' => "Could not delete message from ".$CONFIG['drafts_mbox']), TRUE, FALSE);
+    }
+  }
+}
+// remove temp file
+else if ($mailbody_file) {
+  unlink($mailbody_file);
+}
 
 
-// kill compose entry from session
-rcmail_compose_cleanup();
+if ($savedraft) {
+  $msgid = strtr($message_id, array('>' => '', '<' => ''));
 
-?>
\ No newline at end of file
+  // remember new draft-uid ($saved could be an UID or TRUE here)
+  if (is_bool($saved)) {
+    $draft_idx = $RCMAIL->storage->search_once($CONFIG['drafts_mbox'], 'HEADER Message-ID '.$msgid);
+    $saved     = $draft_idx->get_element('FIRST');
+  }
+  $COMPOSE['param']['draft_uid'] = $saved;
+  $plugin = $RCMAIL->plugins->exec_hook('message_draftsaved', array('msgid' => $msgid, 'uid' => $saved, 'folder' => $store_target));
+
+  // display success
+  $OUTPUT->show_message($plugin['message'] ? $plugin['message'] : 'messagesaved', 'confirmation');
+
+  // update "_draft_saveid" and the "cmp_hash" to prevent "Unsaved changes" warning
+  $OUTPUT->command('set_draft_id', $msgid);
+  $OUTPUT->command('compose_field_hash', true);
+
+  // start the auto-save timer again
+  $OUTPUT->command('auto_save_start');
+
+  $OUTPUT->send('iframe');
+}
+else {
+  rcmail_compose_cleanup($COMPOSE_ID);
+
+  if ($store_folder && !$saved)
+    $OUTPUT->command('sent_successfully', 'error', rcube_label('errorsavingsent'));
+  else
+    $OUTPUT->command('sent_successfully', 'confirmation', rcube_label('messagesent'), $store_target);
+  $OUTPUT->send('iframe');
+}

--
Gitblit v1.9.1