--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/program/steps/utils/error.inc	Thu Jan 04 15:52:31 2018 -0500
@@ -0,0 +1,168 @@
+<?php
+
+/**
+ +-----------------------------------------------------------------------+
+ | program/steps/utils/error.inc                                         |
+ |                                                                       |
+ | This file is part of the Roundcube Webmail client                     |
+ | Copyright (C) 2005-2015, 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:                                                              |
+ |   Display error message page                                          |
+ |                                                                       |
+ +-----------------------------------------------------------------------+
+ | Author: Thomas Bruederli <roundcube@gmail.com>                        |
+ +-----------------------------------------------------------------------+
+*/
+
+$rcmail = rcmail::get_instance();
+
+// browser is not compatible with this application
+if ($ERROR_CODE == 409) {
+    $user_agent    = htmlentities($_SERVER['HTTP_USER_AGENT']);
+    $__error_title = 'Your browser does not suit the requirements for this application';
+    $__error_text  = <<<EOF
+<i>Supported browsers:</i><br />
+&raquo; &nbsp;Microsoft Internet Explorer 7+<br />
+&raquo; &nbsp;Mozilla Firefox 3+<br />
+&raquo; &nbsp;Chrome 10+<br />
+&raquo; &nbsp;Safari 4+<br />
+&raquo; &nbsp;Opera 8+<br />
+<br />
+&raquo; &nbsp;JavaScript enabled<br />
+&raquo; &nbsp;Support for XMLHTTPRequest<br />
+
+<p><i>Your configuration:</i><br />
+$user_agent</p>
+EOF;
+}
+
+// authorization error
+else if ($ERROR_CODE == 401) {
+    $__error_title = mb_strtoupper($rcmail->gettext('errauthorizationfailed'));
+    $__error_text  = nl2br($rcmail->gettext('errunauthorizedexplain') . "\n" .
+                        $rcmail->gettext('errcontactserveradmin'));
+}
+
+// forbidden due to request check
+else if ($ERROR_CODE == 403) {
+    if ($_SERVER['REQUEST_METHOD'] == 'GET' && $rcmail->request_status == rcube::REQUEST_ERROR_URL) {
+        $url = $rcmail->url($_GET, true, false, true);
+        $add = html::a($url, $rcmail->gettext('clicktoresumesession'));
+    }
+    else {
+        $add = $rcmail->gettext('errcontactserveradmin');
+    }
+
+    $__error_title = mb_strtoupper($rcmail->gettext('errrequestcheckfailed'));
+    $__error_text  = nl2br($rcmail->gettext('errcsrfprotectionexplain')) . '<p>' . $add . '</p>';
+}
+
+// failed request (wrong step in URL)
+else if ($ERROR_CODE == 404) {
+    $request_url   = htmlentities($_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']);
+    $__error_title = mb_strtoupper($rcmail->gettext('errnotfound'));
+    $__error_text  = nl2br($rcmail->gettext('errnotfoundexplain') . "\n" .
+                        $rcmail->gettext('errcontactserveradmin'));
+
+    $__error_text .= '<p><i>' . $rcmail->gettext('errfailedrequest') . ":</i><br />\n<tt>//$request_url</tt></p>";
+}
+
+// invalid compose ID
+else if ($ERROR_CODE == 450 && $_SERVER['REQUEST_METHOD'] == 'GET' && $rcmail->action == 'compose') {
+    $url = $rcmail->url('compose');
+
+    $__error_title = mb_strtoupper($rcmail->gettext('errcomposesession'));
+    $__error_text  = nl2br($rcmail->gettext('errcomposesessionexplain'))
+        . '<p>' . html::a($url, $rcmail->gettext('clicktocompose')) . '</p>';
+}
+
+// database connection error
+else if ($ERROR_CODE == 601) {
+    $__error_title = "CONFIGURATION ERROR";
+    $__error_text  =  nl2br($ERROR_MESSAGE) . "<br />Please read the INSTALL instructions!";
+}
+
+// database connection error
+else if ($ERROR_CODE == 603) {
+    $__error_title = "DATABASE ERROR: CONNECTION FAILED!";
+    $__error_text  =  "Unable to connect to the database!<br />Please contact your server-administrator.";
+}
+
+// system error
+else {
+    $__error_title = "SERVICE CURRENTLY NOT AVAILABLE!";
+    $__error_text  = "Please contact your server-administrator.";
+
+    if (($rcmail->config->get('debug_level') & 4) && $ERROR_MESSAGE) {
+        $__error_text = $ERROR_MESSAGE;
+    }
+    else {
+        $__error_text = sprintf('Error No. [%s]', $ERROR_CODE);
+    }
+}
+
+// inform plugins
+if ($rcmail && $rcmail->plugins) {
+    $plugin = $rcmail->plugins->exec_hook('error_page', array(
+        'code' => $ERROR_CODE,
+        'title' => $__error_title,
+        'text' => $__error_text,
+    ));
+
+    if (!empty($plugin['title']))
+        $__error_title = $plugin['title'];
+    if (!empty($plugin['text']))
+        $__error_text = $plugin['text'];
+}
+
+$HTTP_ERR_CODE = $ERROR_CODE && $ERROR_CODE < 600 ? $ERROR_CODE : 500;
+
+// Ajax request
+if ($rcmail->output && $rcmail->output->type == 'js') {
+    header("HTTP/1.0 $HTTP_ERR_CODE $__error_title");
+    die;
+}
+
+// compose page content
+$__page_content = <<<EOF
+<div>
+<h3 class="error-title">$__error_title</h3>
+<div class="error-text">$__error_text</div>
+</div>
+EOF;
+
+if ($rcmail->output && $rcmail->output->template_exists('error')) {
+    $rcmail->output->reset();
+    $rcmail->output->set_env('server_error', $ERROR_CODE);
+    $rcmail->output->set_env('comm_path', $rcmail->comm_path);
+    $rcmail->output->send('error');
+}
+
+$__skin = $rcmail->config->get('skin', 'default');
+$__productname = $rcmail->config->get('product_name', 'Roundcube Webmail');
+
+// print system error page
+print <<<EOF
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml"><head>
+<title>$__productname :: ERROR</title>
+<link rel="stylesheet" type="text/css" href="skins/$__skin/common.css" />
+</head>
+<body>
+
+<table border="0" cellsapcing="0" cellpadding="0" width="100%" height="80%"><tr><td align="center">
+
+$__page_content
+
+</td></tr></table>
+
+</body>
+</html>
+EOF;
+
+exit;