--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/program/steps/addressbook/qrcode.inc	Thu Jan 04 15:52:31 2018 -0500
@@ -0,0 +1,75 @@
+<?php
+
+/**
+ +-----------------------------------------------------------------------+
+ | program/steps/addressbook/qrcode.inc                                  |
+ |                                                                       |
+ | This file is part of the Roundcube Webmail client                     |
+ | Copyright (C) 2005-2016, 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:                                                              |
+ |   Show contact data as QR code                                        |
+ |                                                                       |
+ +-----------------------------------------------------------------------+
+ | Author: Aleksander Machniak <alec@alec.pl>                            |
+ +-----------------------------------------------------------------------+
+*/
+
+// Get contact ID and source ID from request
+$cids   = rcmail_get_cids();
+$source = key($cids);
+$cid    = $cids ? array_shift($cids[$source]) : null;
+
+// read contact record
+$abook   = rcmail_contact_source($source, true);
+$contact = $abook->get_record($cid, true);
+
+// generate QR code image
+if ($data = rcmail_contact_qrcode($contact)) {
+    header('Content-Type: image/png');
+    header('Content-Length: ' . strlen($data));
+    echo $data;
+}
+else {
+    header('HTTP/1.0 404 Contact not found');
+}
+
+exit;
+
+
+function rcmail_contact_qrcode($contact)
+{
+    $vcard = new rcube_vcard();
+
+    // QR code input is limited, use only common fields
+    $fields = array('firstname', 'surname', 'middlename', 'nickname', 'organization',
+        'prefix', 'suffix', 'phone', 'email', 'jobtitle');
+
+    foreach ($contact as $field => $value) {
+        list($field, $section) = explode(':', $field, 2);
+        if (in_array($field, $fields)) {
+            foreach ((array) $value as $v) {
+                $vcard->set($field, $v, $section);
+            }
+        }
+    }
+
+    $data = $vcard->export();
+
+    $qrCode = new Endroid\QrCode\QrCode();
+    $qrCode
+        ->setText($data)
+        ->setSize(300)
+        ->setPadding(0)
+        ->setErrorCorrection('high')
+    //    ->setLabel('Scan the code')
+    //    ->setLabelFontSize(16)
+        ->setForegroundColor(array('r' => 0, 'g' => 0, 'b' => 0, 'a' => 0))
+        ->setBackgroundColor(array('r' => 255, 'g' => 255, 'b' => 255, 'a' => 0));
+
+    return $qrCode->get('png');
+}