--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/program/steps/mail/list.inc	Thu Jan 04 15:52:31 2018 -0500
@@ -0,0 +1,147 @@
+<?php
+
+/**
+ +-----------------------------------------------------------------------+
+ | program/steps/mail/list.inc                                           |
+ |                                                                       |
+ | This file is part of the Roundcube Webmail client                     |
+ | Copyright (C) 2005-2014, 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:                                                              |
+ |   Send message list to client (as remote response)                    |
+ |                                                                       |
+ +-----------------------------------------------------------------------+
+ | Author: Thomas Bruederli <roundcube@gmail.com>                        |
+ +-----------------------------------------------------------------------+
+*/
+
+if (!$OUTPUT->ajax_call) {
+    return;
+}
+
+$save_arr      = array();
+$dont_override = (array) $RCMAIL->config->get('dont_override');
+
+// is there a sort type for this request?
+if ($sort = rcube_utils::get_input_value('_sort', rcube_utils::INPUT_GET)) {
+    // yes, so set the sort vars
+    list($sort_col, $sort_order) = explode('_', $sort);
+
+    // set session vars for sort (so next page and task switch know how to sort)
+    if (!in_array('message_sort_col', $dont_override)) {
+        $_SESSION['sort_col'] = $save_arr['message_sort_col'] = $sort_col;
+    }
+    if (!in_array('message_sort_order', $dont_override)) {
+        $_SESSION['sort_order'] = $save_arr['message_sort_order'] = $sort_order;
+    }
+}
+
+// register layout change
+if ($layout = rcube_utils::get_input_value('_layout', rcube_utils::INPUT_GET)) {
+    $OUTPUT->set_env('layout', $layout);
+    $save_arr['layout'] = $layout;
+    // force header replace on layout change
+    $cols = $_SESSION['list_attrib']['columns'];
+}
+// is there a set of columns for this request?
+else if ($cols = rcube_utils::get_input_value('_cols', rcube_utils::INPUT_GET)) {
+    $_SESSION['list_attrib']['columns'] = explode(',', $cols);
+    if (!in_array('list_cols', $dont_override)) {
+        $save_arr['list_cols'] = explode(',', $cols);
+    }
+}
+
+if (!empty($save_arr)) {
+    $RCMAIL->user->save_prefs($save_arr);
+}
+
+$mbox_name = $RCMAIL->storage->get_folder();
+$threading = (bool) $RCMAIL->storage->get_threading();
+
+// Synchronize mailbox cache, handle flag changes
+$RCMAIL->storage->folder_sync($mbox_name);
+
+// fetch message headers
+if ($count = $RCMAIL->storage->count($mbox_name, $threading ? 'THREADS' : 'ALL', !empty($_REQUEST['_refresh']))) {
+    $a_headers = $RCMAIL->storage->list_messages($mbox_name, NULL, rcmail_sort_column(), rcmail_sort_order());
+}
+
+// update search set (possible change of threading mode)
+if (!empty($_REQUEST['_search']) && isset($_SESSION['search'])
+    && $_SESSION['search_request'] == $_REQUEST['_search']
+) {
+    $search_request = $_REQUEST['_search'];
+    $_SESSION['search'] = $RCMAIL->storage->get_search_set();
+}
+// remove old search data
+else if (empty($_REQUEST['_search']) && isset($_SESSION['search'])) {
+    $RCMAIL->session->remove('search');
+}
+
+rcmail_list_pagetitle();
+
+// update mailboxlist
+if (empty($search_request)) {
+    rcmail_send_unread_count($mbox_name, !empty($_REQUEST['_refresh']), empty($a_headers) ? 0 : null);
+}
+
+// update message count display
+$pages  = ceil($count/$RCMAIL->storage->get_pagesize());
+$page   = $count ? $RCMAIL->storage->get_page() : 1;
+$exists = $RCMAIL->storage->count($mbox_name, 'EXISTS', true);
+
+$OUTPUT->set_env('messagecount', $count);
+$OUTPUT->set_env('pagecount', $pages);
+$OUTPUT->set_env('threading', $threading);
+$OUTPUT->set_env('current_page', $page);
+$OUTPUT->set_env('exists', $exists);
+$OUTPUT->command('set_rowcount', rcmail_get_messagecount_text($count), $mbox_name);
+
+// remove old message rows if commanded by the client
+if (!empty($_REQUEST['_clear'])) {
+    $OUTPUT->command('clear_message_list');
+}
+
+// add message rows
+rcmail_js_message_list($a_headers, false, $cols);
+
+if (isset($a_headers) && count($a_headers)) {
+    if ($search_request) {
+        $OUTPUT->show_message('searchsuccessful', 'confirmation', array('nr' => $count));
+    }
+
+    // remember last HIGHESTMODSEQ value (if supported)
+    // we need it for flag updates in check-recent
+    $data = $RCMAIL->storage->folder_data($mbox_name);
+    if (!empty($data['HIGHESTMODSEQ'])) {
+        $_SESSION['list_mod_seq'] = $data['HIGHESTMODSEQ'];
+    }
+}
+else {
+    // handle IMAP errors (e.g. #1486905)
+    if ($err_code = $RCMAIL->storage->get_error_code()) {
+        $RCMAIL->display_server_error();
+    }
+    else if ($search_request) {
+        $OUTPUT->show_message('searchnomatch', 'notice');
+    }
+    else {
+        $OUTPUT->show_message('nomessagesfound', 'notice');
+    }
+}
+
+// set trash folder state
+if ($mbox_name === $RCMAIL->config->get('trash_mbox')) {
+    $OUTPUT->command('set_trash_count', $exists);
+}
+
+if ($page == 1) {
+    $OUTPUT->command('set_quota', $RCMAIL->quota_content(null, $multifolder ? 'INBOX' : $mbox_name));
+}
+
+// send response
+$OUTPUT->send();