From f94e442469deca30b39f3fa08aade83cbd0ede70 Mon Sep 17 00:00:00 2001
From: thomascube <thomas@roundcube.net>
Date: Fri, 16 Dec 2011 13:38:59 -0500
Subject: [PATCH] Add more classes and options to HTML elements for better styleability

---
 program/steps/mail/func.inc |  256 ++++++++++++++++++++++++++++-----------------------
 1 files changed, 141 insertions(+), 115 deletions(-)

diff --git a/program/steps/mail/func.inc b/program/steps/mail/func.inc
index ae0d3a5..d44e9c3 100644
--- a/program/steps/mail/func.inc
+++ b/program/steps/mail/func.inc
@@ -47,12 +47,12 @@
 
 // set imap properties and session vars
 if (strlen(trim($mbox = get_input_value('_mbox', RCUBE_INPUT_GPC, true))))
-  $IMAP->set_mailbox(($_SESSION['mbox'] = $mbox));
-else if ($IMAP)
-  $_SESSION['mbox'] = $IMAP->get_mailbox_name();
+  $RCMAIL->imap->set_mailbox(($_SESSION['mbox'] = $mbox));
+else if ($RCMAIL->imap)
+  $_SESSION['mbox'] = $RCMAIL->imap->get_mailbox_name();
 
 if (!empty($_GET['_page']))
-  $IMAP->set_page(($_SESSION['page'] = intval($_GET['_page'])));
+  $RCMAIL->imap->set_page(($_SESSION['page'] = intval($_GET['_page'])));
 
 // set default sort col/order to session
 if (!isset($_SESSION['sort_col']))
@@ -69,31 +69,31 @@
     unset($a_threading[$_SESSION['mbox']]);
   $RCMAIL->user->save_prefs(array('message_threading' => $a_threading));
 }
-$IMAP->set_threading($a_threading[$_SESSION['mbox']]);
+$RCMAIL->imap->set_threading($a_threading[$_SESSION['mbox']]);
 
 // set message set for search result
 if (!empty($_REQUEST['_search']) && isset($_SESSION['search'])
     && $_SESSION['search_request'] == $_REQUEST['_search']
 ) {
-  $IMAP->set_search_set($_SESSION['search']);
+  $RCMAIL->imap->set_search_set($_SESSION['search']);
   $OUTPUT->set_env('search_request', $_REQUEST['_search']);
   $OUTPUT->set_env('search_text', $_SESSION['last_text_search']);
 }
 
 // set main env variables, labels and page title
 if (empty($RCMAIL->action) || $RCMAIL->action == 'list') {
-  $mbox_name = $IMAP->get_mailbox_name();
+  $mbox_name = $RCMAIL->imap->get_mailbox_name();
 
   if (empty($RCMAIL->action)) {
     // initialize searching result if search_filter is used
     if ($_SESSION['search_filter'] && $_SESSION['search_filter'] != 'ALL') {
       $search_request = md5($mbox_name.$_SESSION['search_filter']);
 
-      $IMAP->search($mbox_name, $_SESSION['search_filter'], RCMAIL_CHARSET, $_SESSION['sort_col']);
-      $_SESSION['search'] = $IMAP->get_search_set();
+      $RCMAIL->imap->search($mbox_name, $_SESSION['search_filter'], RCMAIL_CHARSET, $_SESSION['sort_col']);
+      $_SESSION['search'] = $RCMAIL->imap->get_search_set();
       $_SESSION['search_request'] = $search_request;
       $OUTPUT->set_env('search_request', $search_request);
-      }
+    }
 
       $search_mods = $RCMAIL->config->get('search_mods', $SEARCH_MODS_DEFAULT);
       $OUTPUT->set_env('search_mods', $search_mods);
@@ -101,11 +101,11 @@
 
   // set current mailbox and some other vars in client environment
   $OUTPUT->set_env('mailbox', $mbox_name);
-  $OUTPUT->set_env('pagesize', $IMAP->page_size);
-  $OUTPUT->set_env('quota', $IMAP->get_capability('QUOTA'));
-  $OUTPUT->set_env('delimiter', $IMAP->get_hierarchy_delimiter());
-  $OUTPUT->set_env('threading', (bool) $IMAP->threading);
-  $OUTPUT->set_env('threads', $IMAP->threading || $IMAP->get_capability('THREAD'));
+  $OUTPUT->set_env('pagesize', $RCMAIL->imap->page_size);
+  $OUTPUT->set_env('quota', $RCMAIL->imap->get_capability('QUOTA'));
+  $OUTPUT->set_env('delimiter', $RCMAIL->imap->get_hierarchy_delimiter());
+  $OUTPUT->set_env('threading', (bool) $RCMAIL->imap->threading);
+  $OUTPUT->set_env('threads', $RCMAIL->imap->threading || $RCMAIL->imap->get_capability('THREAD'));
   $OUTPUT->set_env('preview_pane_mark_read', $RCMAIL->config->get('preview_pane_mark_read', 0));
 
   if ($CONFIG['flag_for_deletion'])
@@ -130,7 +130,7 @@
       'movingmessage', 'copyingmessage', 'deletingmessage', 'markingmessage',
       'copy', 'move', 'quota');
 
-  $OUTPUT->set_pagetitle(rcmail_localize_foldername($IMAP->mod_mailbox($mbox_name)));
+  $OUTPUT->set_pagetitle(rcmail_localize_foldername($RCMAIL->imap->mod_mailbox($mbox_name)));
 }
 
 
@@ -139,7 +139,7 @@
  */
 function rcmail_message_list($attrib)
 {
-  global $IMAP, $CONFIG, $OUTPUT;
+  global $RCMAIL, $CONFIG, $OUTPUT;
 
   // add some labels to client
   $OUTPUT->add_label('from', 'to');
@@ -161,8 +161,8 @@
   // save some variables for use in ajax list
   $_SESSION['list_attrib'] = $attrib;
 
-  $mbox = $IMAP->get_mailbox_name();
-  $delim = $IMAP->get_hierarchy_delimiter();
+  $mbox = $RCMAIL->imap->get_mailbox_name();
+  $delim = $RCMAIL->imap->get_hierarchy_delimiter();
 
   // show 'to' instead of 'from' in sent/draft messages
   if ((strpos($mbox.$delim, $CONFIG['sent_mbox'].$delim)===0 || strpos($mbox.$delim, $CONFIG['drafts_mbox'].$delim)===0)
@@ -204,7 +204,7 @@
  */
 function rcmail_js_message_list($a_headers, $insert_top=FALSE, $a_show_cols=null)
 {
-  global $CONFIG, $IMAP, $RCMAIL, $OUTPUT;
+  global $CONFIG, $RCMAIL, $OUTPUT;
 
   if (empty($a_show_cols)) {
     if (!empty($_SESSION['list_attrib']['columns']))
@@ -218,8 +218,8 @@
     $head_replace = true;
   }
 
-  $mbox = $IMAP->get_mailbox_name();
-  $delim = $IMAP->get_hierarchy_delimiter();
+  $mbox = $RCMAIL->imap->get_mailbox_name();
+  $delim = $RCMAIL->imap->get_hierarchy_delimiter();
 
   // make sure 'threads' and 'subject' columns are present
   if (!in_array('subject', $a_show_cols))
@@ -266,14 +266,14 @@
     $a_msg_cols = array();
     $a_msg_flags = array();
 
-    $IMAP->set_charset(!empty($header->charset) ? $header->charset : $CONFIG['default_charset']);
+    $RCMAIL->imap->set_charset(!empty($header->charset) ? $header->charset : $CONFIG['default_charset']);
 
     // format each col; similar as in rcmail_message_list()
     foreach ($a_show_cols as $col) {
       if (in_array($col, array('from', 'to', 'cc', 'replyto')))
         $cont = Q(rcmail_address_string($header->$col, 3), 'show');
       else if ($col=='subject') {
-        $cont = trim($IMAP->decode_header($header->$col));
+        $cont = trim($RCMAIL->imap->decode_header($header->$col));
         if (!$cont) $cont = rcube_label('nosubject');
         $cont = Q($cont);
       }
@@ -287,6 +287,7 @@
       $a_msg_cols[$col] = $cont;
     }
 
+    $a_msg_flags = array_change_key_case(array_map('intval', (array) $header->flags));
     if ($header->depth)
       $a_msg_flags['depth'] = $header->depth;
     else if ($header->has_children)
@@ -297,16 +298,6 @@
       $a_msg_flags['has_children'] = $header->has_children;
     if ($header->unread_children)
       $a_msg_flags['unread_children'] = $header->unread_children;
-    if ($header->deleted)
-      $a_msg_flags['deleted'] = 1;
-    if (!$header->seen)
-      $a_msg_flags['unread'] = 1;
-    if ($header->answered)
-      $a_msg_flags['replied'] = 1;
-    if ($header->forwarded)
-      $a_msg_flags['forwarded'] = 1;
-    if ($header->flagged)
-      $a_msg_flags['flagged'] = 1;
     if ($header->others['list-post'])
       $a_msg_flags['ml'] = 1;
     if ($header->priority)
@@ -315,7 +306,7 @@
     $a_msg_flags['ctype'] = Q($header->ctype);
     $a_msg_flags['mbox'] = $mbox;
 
-    // merge with plugin result
+    // merge with plugin result (Deprecated, use $header->flags)
     if (!empty($header->list_flags) && is_array($header->list_flags))
       $a_msg_flags = array_merge($a_msg_flags, $header->list_flags);
     if (!empty($header->list_cols) && is_array($header->list_cols))
@@ -328,8 +319,8 @@
       $insert_top);
   }
 
-  if ($IMAP->threading) {
-    $OUTPUT->command('init_threads', (array) $roots);
+  if ($RCMAIL->imap->threading) {
+    $OUTPUT->command('init_threads', (array) $roots, $mbox);
   }
 }
 
@@ -388,6 +379,8 @@
     // make sort links
     if (in_array($col, $a_sort_cols))
       $col_name = html::a(array('href'=>"./#sort", 'onclick' => 'return '.JS_OBJECT_NAME.".command('sort','".$col."',this)", 'title' => rcube_label('sortby')), $col_name);
+    else if ($col_name[0] != '<')
+      $col_name = '<span class="' . $col .'">' . $col_name . '</span>';
 
     $sort_class = $col == $sort_col ? " sorted$sort_order" : '';
     $class_name = $col.$sort_class;
@@ -404,7 +397,7 @@
  * return an HTML iframe for loading mail content
  */
 function rcmail_messagecontent_frame($attrib)
-  {
+{
   global $OUTPUT, $RCMAIL;
 
   if (empty($attrib['id']))
@@ -417,11 +410,11 @@
   $OUTPUT->set_env('blankpage', $attrib['src'] ? $OUTPUT->abs_url($attrib['src']) : 'program/blank.gif');
 
   return html::iframe($attrib);
-  }
+}
 
 
 function rcmail_messagecount_display($attrib)
-  {
+{
   global $RCMAIL;
 
   if (!$attrib['id'])
@@ -432,33 +425,33 @@
   $content =  $RCMAIL->action != 'show' ? rcmail_get_messagecount_text() : rcube_label('loading');
 
   return html::span($attrib, $content);
-  }
+}
 
 
 function rcmail_get_messagecount_text($count=NULL, $page=NULL)
-  {
-  global $RCMAIL, $IMAP;
+{
+  global $RCMAIL;
 
   if ($page===NULL)
-    $page = $IMAP->list_page;
+    $page = $RCMAIL->imap->list_page;
 
-  $start_msg = ($page-1) * $IMAP->page_size + 1;
+  $start_msg = ($page-1) * $RCMAIL->imap->page_size + 1;
 
   if ($count!==NULL)
     $max = $count;
   else if ($RCMAIL->action)
-    $max = $IMAP->messagecount(NULL, $IMAP->threading ? 'THREADS' : 'ALL');
+    $max = $RCMAIL->imap->messagecount(NULL, $RCMAIL->imap->threading ? 'THREADS' : 'ALL');
 
   if ($max==0)
     $out = rcube_label('mailboxempty');
   else
-    $out = rcube_label(array('name' => $IMAP->threading ? 'threadsfromto' : 'messagesfromto',
+    $out = rcube_label(array('name' => $RCMAIL->imap->threading ? 'threadsfromto' : 'messagesfromto',
             'vars' => array('from'  => $start_msg,
-            'to'    => min($max, $start_msg + $IMAP->page_size - 1),
+            'to'    => min($max, $start_msg + $RCMAIL->imap->page_size - 1),
             'count' => $max)));
 
   return Q($out);
-  }
+}
 
 
 function rcmail_mailbox_name_display($attrib)
@@ -481,7 +474,7 @@
 }
 
 
-function rcmail_send_unread_count($mbox_name, $force=false, $count=null)
+function rcmail_send_unread_count($mbox_name, $force=false, $count=null, $mark='')
 {
   global $RCMAIL;
 
@@ -493,7 +486,8 @@
     $unseen = $count;
 
   if ($unseen != $old_unseen || ($mbox_name == 'INBOX'))
-    $RCMAIL->output->command('set_unread_count', $mbox_name, $unseen, ($mbox_name == 'INBOX'));
+    $RCMAIL->output->command('set_unread_count', $mbox_name, $unseen,
+      ($mbox_name == 'INBOX'), $unseen && $mark ? $mark : '');
 
   rcmail_set_unseen_count($mbox_name, $unseen);
 
@@ -559,7 +553,7 @@
  * @param array  CID map replaces (inline images)
  * @return string Clean HTML
  */
-function rcmail_wash_html($html, $p = array(), $cid_replaces)
+function rcmail_wash_html($html, $p, $cid_replaces)
 {
   global $REMOTE_OBJECTS;
 
@@ -568,7 +562,7 @@
   // special replacements (not properly handled by washtml class)
   $html_search = array(
     '/(<\/nobr>)(\s+)(<nobr>)/i',	// space(s) between <NOBR>
-    '/<title[^>]*>.*<\/title>/i',	// PHP bug #32547 workaround: remove title tag
+    '/<title[^>]*>[^<]*<\/title>/i',	// PHP bug #32547 workaround: remove title tag
     '/^(\0\0\xFE\xFF|\xFF\xFE\0\0|\xFE\xFF|\xFF\xFE|\xEF\xBB\xBF)/',	// byte-order mark (only outlook?)
     '/<html\s[^>]+>/i',			// washtml/DOMDocument cannot handle xml namespaces
   );
@@ -599,16 +593,16 @@
   $html = preg_replace_callback('/(<[\/]*)([^\s>]+)/', 'rcmail_html_tag_callback', $html);
 
   // charset was converted to UTF-8 in rcube_imap::get_message_part(),
-  // -> change charset specification in HTML accordingly
-  $charset_pattern = '(<meta\s+[^>]*content=)[\'"]?(\w+\/\w+;\s*charset=)([a-z0-9-_]+[\'"]?)';
-  if (preg_match("/$charset_pattern/Ui", $html)) {
-    $html = preg_replace("/$charset_pattern/i", '\\1"\\2'.RCMAIL_CHARSET.'"', $html);
-  }
-  else {
-    // add meta content-type to malformed messages, washtml cannot work without that
-    if (!preg_match('/<head[^>]*>(.*)<\/head>/Uims', $html))
-      $html = '<head></head>'. $html;
-    $html = substr_replace($html, '<meta http-equiv="Content-Type" content="text/html; charset='.RCMAIL_CHARSET.'" />', intval(stripos($html, '<head>')+6), 0);
+  // change/add charset specification in HTML accordingly,
+  // washtml cannot work without that
+  $meta = '<meta http-equiv="Content-Type" content="text/html; charset='.RCMAIL_CHARSET.'" />';
+
+  // remove old meta tag and add the new one, making sure
+  // that it is placed in the head (#1488093)
+  $html = preg_replace('/<meta[^>]+charset=[a-z0-9-_]+[^>]*>/Ui', '', $html);
+  $html = preg_replace('/(<head[^>]*>)/Ui', '\\1'.$meta, $html, -1, $rcount);
+  if (!$rcount) {
+    $html = '<head>' . $meta . '</head>' . $html;
   }
 
   // turn relative into absolute urls
@@ -647,6 +641,9 @@
   // allow CSS styles, will be sanitized by rcmail_washtml_callback()
   if (!$p['skip_washer_style_callback'])
     $washer->add_callback('style', 'rcmail_washtml_callback');
+
+  // Remove non-UTF8 characters (#1487813)
+  $html = rc_utf8_clean($html);
 
   $html = $washer->wash($html);
   $REMOTE_OBJECTS = $washer->extlinks;
@@ -775,7 +772,7 @@
 
           // previous line is flowed?
           if (isset($body[$last]) && $body[$n]
-            && $last != $last_sig
+            && $last !== $last_sig
             && $body[$last][strlen($body[$last])-1] == ' '
           ) {
             $body[$last] .= $body[$n];
@@ -827,7 +824,7 @@
 /**
  * Callback function for washtml cleaning class
  */
-function rcmail_washtml_callback($tagname, $attrib, $content)
+function rcmail_washtml_callback($tagname, $attrib, $content, $washtml)
 {
   switch ($tagname) {
     case 'form':
@@ -839,8 +836,11 @@
       $stripped = preg_replace('/[^a-zA-Z\(:;]/', '', rcmail_xss_entity_decode($content));
 
       // now check for evil strings like expression, behavior or url()
-      if (!preg_match('/expression|behavior|url\(|import[^a]/', $stripped)) {
-        $out = html::tag('style', array('type' => 'text/css'), $content);
+      if (!preg_match('/expression|behavior|javascript:|import[^a]/i', $stripped)) {
+        if (!$washtml->get_config('allow_remote') && stripos($stripped, 'url('))
+          $washtml->extlinks = true;
+        else
+          $out = html::tag('style', array('type' => 'text/css'), $content);
         break;
       }
 
@@ -873,7 +873,7 @@
  */
 function rcmail_message_headers($attrib, $headers=NULL)
   {
-  global $IMAP, $OUTPUT, $MESSAGE, $PRINT_MODE, $RCMAIL;
+  global $OUTPUT, $MESSAGE, $PRINT_MODE, $RCMAIL;
   static $sa_attrib;
 
   // keep header table attrib
@@ -892,6 +892,7 @@
   // show these headers
   $standard_headers = array('subject', 'from', 'to', 'cc', 'bcc', 'replyto',
     'mail-reply-to', 'mail-followup-to', 'date');
+  $exclude_headers = $attrib['exclude'] ? explode(',', $attrib['exclude']) : array();
   $output_headers = array();
 
   foreach ($standard_headers as $hkey) {
@@ -900,6 +901,9 @@
     else if ($headers['others'][$hkey])
       $value = $headers['others'][$hkey];
     else
+      continue;
+
+    if (in_array($hkey, $exclude_headers))
       continue;
 
     if ($hkey == 'date') {
@@ -930,7 +934,7 @@
     else if ($hkey == 'subject' && empty($value))
       $header_value = rcube_label('nosubject');
     else
-      $header_value = trim($IMAP->decode_header($value));
+      $header_value = trim($RCMAIL->imap->decode_header($value));
 
     $output_headers[$hkey] = array(
         'title' => rcube_label(preg_replace('/(^mail-|-)/', '', $hkey)),
@@ -939,7 +943,11 @@
   }
 
   $plugin = $RCMAIL->plugins->exec_hook('message_headers_output',
-    array('output' => $output_headers, 'headers' => $MESSAGE->headers));
+    array('output' => $output_headers, 'headers' => $MESSAGE->headers, 'exclude' => $exclude_headers));
+
+  // single header value is requested
+  if (!empty($attrib['valueof']))
+    return Q($plugin['output'][$attrib['valueof']]['value'], ($hkey == 'subject' ? 'strict' : 'show'));
 
   // compose html table
   $table = new html_table(array('cols' => 2));
@@ -977,8 +985,8 @@
  * @return string HTML content showing the message body
  */
 function rcmail_message_body($attrib)
-  {
-  global $CONFIG, $OUTPUT, $MESSAGE, $IMAP, $RCMAIL, $REMOTE_OBJECTS;
+{
+  global $CONFIG, $OUTPUT, $MESSAGE, $RCMAIL, $REMOTE_OBJECTS;
 
   if (!is_array($MESSAGE->parts) && empty($MESSAGE->body))
     return '';
@@ -994,14 +1002,20 @@
     if (preg_match('/^headertable([a-z]+)$/i', $attr, $regs))
       $header_attrib[$regs[1]] = $value;
 
-  if (!empty($MESSAGE->parts))
-    {
-    foreach ($MESSAGE->parts as $i => $part)
-      {
+  if (!empty($MESSAGE->parts)) {
+    foreach ($MESSAGE->parts as $i => $part) {
       if ($part->type == 'headers')
         $out .= rcmail_message_headers(sizeof($header_attrib) ? $header_attrib : NULL, $part->headers);
-      else if ($part->type == 'content' && $part->size)
-        {
+      else if ($part->type == 'content' && $part->size) {
+        // Check if we have enough memory to handle the message in it
+        // #1487424: we need up to 10x more memory than the body
+        if (!rcmail_mem_check($part->size * 10)) {
+          $out .= html::span('part-notice', rcube_label('messagetoobig'). ' '
+            . html::a('?_task=mail&_action=get&_download=1&_uid='.$MESSAGE->uid.'&_part='.$part->mime_id
+              .'&_mbox='. urlencode($RCMAIL->imap->get_mailbox_name()), rcube_label('download')));
+          continue;
+        }
+
         if (empty($part->ctype_parameters) || empty($part->ctype_parameters['charset']))
           $part->ctype_parameters['charset'] = $MESSAGE->headers->charset;
 
@@ -1020,7 +1034,7 @@
         $body = rcmail_print_body($part, array('safe' => $safe_mode, 'plain' => !$CONFIG['prefer_html']));
 
         if ($part->ctype_secondary == 'html') {
-          $body = rcmail_html4inline($body, $attrib['id'], 'rcmBody', $attrs);
+          $body = rcmail_html4inline($body, $attrib['id'], 'rcmBody', $attrs, $safe_mode);
           $div_attr = array('class' => 'message-htmlpart');
           $style = array();
 
@@ -1035,26 +1049,34 @@
         }
         else
           $out .= html::div('message-part', $plugin['prefix'] . $body);
-        }
       }
     }
+  }
   else {
-    $plugin = $RCMAIL->plugins->exec_hook('message_body_prefix', array(
-      'part' => $MESSAGE, 'prefix' => ''));
-
-    $out .= html::div('message-part', $plugin['prefix'] . html::tag('pre', array(),
-      rcmail_plain_body(Q($MESSAGE->body, 'strict', false))));
+    // Check if we have enough memory to handle the message in it
+    // #1487424: we need up to 10x more memory than the body
+    if (!rcmail_mem_check(strlen($MESSAGE->body) * 10)) {
+      $out .= html::span('part-notice', rcube_label('messagetoobig'). ' '
+        . html::a('?_task=mail&_action=get&_download=1&_uid='.$MESSAGE->uid.'&_part=0'
+          .'&_mbox='. urlencode($RCMAIL->imap->get_mailbox_name()), rcube_label('download')));
     }
+    else {
+      $plugin = $RCMAIL->plugins->exec_hook('message_body_prefix', array(
+        'part' => $MESSAGE, 'prefix' => ''));
 
-  $ctype_primary = strtolower($MESSAGE->structure->ctype_primary);
-  $ctype_secondary = strtolower($MESSAGE->structure->ctype_secondary);
+      $out .= html::div('message-part', $plugin['prefix'] . html::tag('pre', array(),
+        rcmail_plain_body(Q($MESSAGE->body, 'strict', false))));
+    }
+  }
 
   // list images after mail body
-  if ($CONFIG['inline_images']
-      && $ctype_primary == 'multipart'
-      && !empty($MESSAGE->attachments))
-    {
+  if ($CONFIG['inline_images'] && !empty($MESSAGE->attachments)) {
     foreach ($MESSAGE->attachments as $attach_prop) {
+      // skip inline images
+      if ($attach_prop->content_id && $attach_prop->disposition == 'inline') {
+        continue;
+      }
+
       // Content-Type: image/*...
       if (preg_match('/^image\//i', $attach_prop->mimetype) ||
         // ...or known file extension: many clients are using application/octet-stream
@@ -1064,11 +1086,11 @@
       ) {
         $out .= html::tag('hr') . html::p(array('align' => "center"),
           html::img(array(
-            'src' => $MESSAGE->get_part_url($attach_prop->mime_id),
+            'src' => $MESSAGE->get_part_url($attach_prop->mime_id, true),
             'title' => $attach_prop->filename,
             'alt' => $attach_prop->filename,
           )));
-        }
+      }
     }
   }
 
@@ -1077,7 +1099,7 @@
     $OUTPUT->set_env('blockedobjects', true);
 
   return html::div($attrib, $out);
-  }
+}
 
 
 /**
@@ -1100,23 +1122,21 @@
 /**
  * modify a HTML message that it can be displayed inside a HTML page
  */
-function rcmail_html4inline($body, $container_id, $body_id='', &$attributes=null)
+function rcmail_html4inline($body, $container_id, $body_id='', &$attributes=null, $allow_remote=false)
 {
   $last_style_pos = 0;
-  $body_lc = strtolower($body);
   $cont_id = $container_id.($body_id ? ' div.'.$body_id : '');
 
   // find STYLE tags
-  while (($pos = strpos($body_lc, '<style', $last_style_pos)) && ($pos2 = strpos($body_lc, '</style>', $pos)))
+  while (($pos = stripos($body, '<style', $last_style_pos)) && ($pos2 = stripos($body, '</style>', $pos)))
   {
-    $pos = strpos($body_lc, '>', $pos)+1;
+    $pos = strpos($body, '>', $pos)+1;
 
     // replace all css definitions with #container [def]
     $styles = rcmail_mod_css_styles(
-      substr($body, $pos, $pos2-$pos), $cont_id);
+      substr($body, $pos, $pos2-$pos), $cont_id, $allow_remote);
 
-    $body = substr($body, 0, $pos) . $styles . substr($body, $pos2);
-    $body_lc = strtolower($body);
+    $body = substr_replace($body, $styles, $pos, $pos2-$pos);
     $last_style_pos = $pos2;
   }
 
@@ -1239,9 +1259,9 @@
  */
 function rcmail_address_string($input, $max=null, $linked=false, $addicon=null)
 {
-  global $IMAP, $RCMAIL, $PRINT_MODE, $CONFIG;
+  global $RCMAIL, $PRINT_MODE, $CONFIG;
 
-  $a_parts = $IMAP->decode_address_list($input);
+  $a_parts = $RCMAIL->imap->decode_address_list($input);
 
   if (!sizeof($a_parts))
     return $input;
@@ -1291,6 +1311,7 @@
             'href' => "#add",
             'onclick' => sprintf("return %s.command('add-contact','%s',this)", JS_OBJECT_NAME, urlencode($string)),
             'title' => rcube_label('addtoaddressbook'),
+            'class' => 'rcmaddcontact',
           ),
           html::img(array(
             'src' => $CONFIG['skin_path'] . $addicon,
@@ -1385,7 +1406,7 @@
 }
 
 
-function rcmail_message_part_controls()
+function rcmail_message_part_controls($attrib)
 {
   global $MESSAGE;
 
@@ -1398,13 +1419,13 @@
 
   if (!empty($part->filename)) {
     $table->add('title', Q(rcube_label('filename')));
-    $table->add(null, Q($part->filename));
-    $table->add(null, '[' . html::a('?'.str_replace('_frame=', '_download=', $_SERVER['QUERY_STRING']), Q(rcube_label('download'))) . ']');
+    $table->add('header', Q($part->filename));
+    $table->add('download-link', html::a(array('href' => './?'.str_replace('_frame=', '_download=', $_SERVER['QUERY_STRING'])), Q(rcube_label('download'))));
   }
 
   if (!empty($part->size)) {
     $table->add('title', Q(rcube_label('filesize')));
-    $table->add(null, Q(show_bytes($part->size)));
+    $table->add('header', Q(show_bytes($part->size)));
   }
 
   return $table->show($attrib);
@@ -1430,12 +1451,12 @@
  */
 function rcmail_compose_cleanup($id)
 {
-  if (!isset($_SESSION['compose_data'][$id]))
+  if (!isset($_SESSION['compose_data_'.$id]))
     return;
 
   $rcmail = rcmail::get_instance();
   $rcmail->plugins->exec_hook('attachments_cleanup', array('group' => $id));
-  unset($_SESSION['compose_data'][$id]);
+  $rcmail->session->remove('compose_data_'.$id);
 }
 
 
@@ -1449,17 +1470,17 @@
  */
 function rcmail_send_mdn($message, &$smtp_error)
 {
-  global $RCMAIL, $IMAP;
+  global $RCMAIL;
 
-  if (!is_object($message) || !is_a($message, rcube_message))
+  if (!is_object($message) || !is_a($message, 'rcube_message'))
     $message = new rcube_message($message);
 
-  if ($message->headers->mdn_to && !$message->headers->mdn_sent &&
-    ($IMAP->check_permflag('MDNSENT') || $IMAP->check_permflag('*')))
+  if ($message->headers->mdn_to && empty($message->headers->flags['MDNSENT']) &&
+    ($RCMAIL->imap->check_permflag('MDNSENT') || $RCMAIL->imap->check_permflag('*')))
   {
     $identity = $RCMAIL->user->get_identity();
     $sender = format_email_recipient($identity['email'], $identity['name']);
-    $recipient = array_shift($IMAP->decode_address_list($message->headers->mdn_to));
+    $recipient = array_shift($RCMAIL->imap->decode_address_list($message->headers->mdn_to));
     $mailto = $recipient['mailto'];
 
     $compose = new Mail_mime("\r\n");
@@ -1510,7 +1531,7 @@
 
     if ($sent)
     {
-      $IMAP->set_flag($message->uid, 'MDNSENT');
+      $RCMAIL->imap->set_flag($message->uid, 'MDNSENT');
       return true;
     }
   }
@@ -1554,6 +1575,11 @@
   $select_filter->add(rcube_label('unanswered'), 'UNANSWERED');
   if (!$CONFIG['skip_deleted'])
     $select_filter->add(rcube_label('deleted'), 'DELETED');
+  $select_filter->add(rcube_label('priority').': '.rcube_label('highest'), 'HEADER X-PRIORITY 1');
+  $select_filter->add(rcube_label('priority').': '.rcube_label('high'), 'HEADER X-PRIORITY 2');
+  $select_filter->add(rcube_label('priority').': '.rcube_label('normal'), 'NOT HEADER X-PRIORITY 1 NOT HEADER X-PRIORITY 2 NOT HEADER X-PRIORITY 4 NOT HEADER X-PRIORITY 5');
+  $select_filter->add(rcube_label('priority').': '.rcube_label('low'), 'HEADER X-PRIORITY 4');
+  $select_filter->add(rcube_label('priority').': '.rcube_label('lowest'), 'HEADER X-PRIORITY 5');
 
   $out = $select_filter->show($_SESSION['search_filter']);
 

--
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