diff program/steps/mail/compose.inc @ 0:4681f974d28b

vanilla 1.3.3 distro, I hope
author Charlie Root
date Thu, 04 Jan 2018 15:52:31 -0500
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/program/steps/mail/compose.inc	Thu Jan 04 15:52:31 2018 -0500
@@ -0,0 +1,1896 @@
+<?php
+
+/**
+ +-----------------------------------------------------------------------+
+ | program/steps/mail/compose.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:                                                              |
+ |   Compose a new mail message with all headers and attachments         |
+ |                                                                       |
+ +-----------------------------------------------------------------------+
+ | Author: Thomas Bruederli <roundcube@gmail.com>                        |
+ +-----------------------------------------------------------------------+
+*/
+
+// define constants for message compose mode
+define('RCUBE_COMPOSE_REPLY', 'reply');
+define('RCUBE_COMPOSE_FORWARD', 'forward');
+define('RCUBE_COMPOSE_DRAFT', 'draft');
+define('RCUBE_COMPOSE_EDIT', 'edit');
+
+$MESSAGE_FORM = null;
+$COMPOSE_ID   = rcube_utils::get_input_value('_id', rcube_utils::INPUT_GET);
+$COMPOSE      = null;
+
+if ($COMPOSE_ID && $_SESSION['compose_data_'.$COMPOSE_ID])
+  $COMPOSE =& $_SESSION['compose_data_'.$COMPOSE_ID];
+
+// give replicated session storage some time to synchronize
+$retries = 0;
+while ($COMPOSE_ID && !is_array($COMPOSE) && $RCMAIL->db->is_replicated() && $retries++ < 5) {
+    usleep(500000);
+    $RCMAIL->session->reload();
+    if ($_SESSION['compose_data_'.$COMPOSE_ID]) {
+        $COMPOSE =& $_SESSION['compose_data_'.$COMPOSE_ID];
+    }
+}
+
+// Nothing below is called during message composition, only at "new/forward/reply/draft" initialization or
+// if a compose-ID is given (i.e. when the compose step is opened in a new window/tab).
+if (!is_array($COMPOSE)) {
+    // Infinite redirect prevention in case of broken session (#1487028)
+    if ($COMPOSE_ID) {
+        // if we know the message with specified ID was already sent
+        // we can ignore the error and compose a new message (#1490009)
+        if ($COMPOSE_ID != $_SESSION['last_compose_session']) {
+            rcube::raise_error(array('code' => 450), false, true);
+        }
+    }
+
+    $COMPOSE_ID = uniqid(mt_rand());
+    $params     = rcube_utils::request2param(rcube_utils::INPUT_GET, 'task|action', true);
+
+    $_SESSION['compose_data_'.$COMPOSE_ID] = array(
+        'id'      => $COMPOSE_ID,
+        'param'   => $params,
+        'mailbox' => $params['mbox'] ?: $RCMAIL->storage->get_folder(),
+    );
+    $COMPOSE =& $_SESSION['compose_data_'.$COMPOSE_ID];
+    rcmail_process_compose_params($COMPOSE);
+
+    // check if folder for saving sent messages exists and is subscribed (#1486802)
+    if ($sent_folder = $COMPOSE['param']['sent_mbox']) {
+        rcmail_check_sent_folder($sent_folder, true);
+    }
+
+    // redirect to a unique URL with all parameters stored in session
+    $OUTPUT->redirect(array(
+        '_action' => 'compose',
+        '_id'     => $COMPOSE['id'],
+        '_search' => $_REQUEST['_search'],
+    ));
+}
+
+
+// add some labels to client
+$OUTPUT->add_label('nosubject', 'nosenderwarning', 'norecipientwarning', 'nosubjectwarning', 'cancel',
+    'nobodywarning', 'notsentwarning', 'notuploadedwarning', 'savingmessage', 'sendingmessage', 
+    'messagesaved', 'converting', 'editorwarning', 'searching', 'uploading', 'uploadingmany',
+    'fileuploaderror', 'sendmessage', 'newresponse', 'responsename', 'responsetext', 'save',
+    'savingresponse', 'restoresavedcomposedata', 'restoremessage', 'delete', 'restore', 'ignore',
+    'selectimportfile', 'messageissent', 'loadingdata', 'nopubkeyfor', 'nopubkeyforsender',
+    'encryptnoattachments','encryptedsendialog','searchpubkeyservers', 'importpubkeys',
+    'encryptpubkeysfound',  'search', 'close', 'import', 'keyid', 'keylength', 'keyexpired',
+    'keyrevoked', 'keyimportsuccess', 'keyservererror', 'attaching', 'namex', 'attachmentrename',
+    'disclosedrecipwarning', 'disclosedreciptitle', 'bccinstead', 'nosubjecttitle');
+
+$OUTPUT->set_pagetitle($RCMAIL->gettext('compose'));
+
+$OUTPUT->set_env('compose_id', $COMPOSE['id']);
+$OUTPUT->set_env('session_id', session_id());
+$OUTPUT->set_env('mailbox', $RCMAIL->storage->get_folder());
+$OUTPUT->set_env('top_posting', intval($RCMAIL->config->get('reply_mode')) > 0);
+$OUTPUT->set_env('sig_below', $RCMAIL->config->get('sig_below'));
+$OUTPUT->set_env('recipients_separator', trim($RCMAIL->config->get('recipients_separator', ',')));
+$OUTPUT->set_env('save_localstorage', (bool)$RCMAIL->config->get('compose_save_localstorage'));
+$OUTPUT->set_env('max_disclosed_recipients', (int) $RCMAIL->config->get('max_disclosed_recipients', 5));
+$OUTPUT->set_env('is_sent', false);
+$OUTPUT->set_env('mimetypes', rcmail_supported_mimetypes());
+
+$drafts_mbox     = $RCMAIL->config->get('drafts_mbox');
+$config_show_sig = $RCMAIL->config->get('show_sig', 1);
+
+// add config parameters to client script
+if (strlen($drafts_mbox)) {
+    $OUTPUT->set_env('drafts_mailbox', $drafts_mbox);
+    $OUTPUT->set_env('draft_autosave', $RCMAIL->config->get('draft_autosave'));
+}
+
+// default font for HTML editor
+$font = rcmail::font_defs($RCMAIL->config->get('default_font'));
+if ($font && !is_array($font)) {
+    $OUTPUT->set_env('default_font', $font);
+}
+
+// default font size for HTML editor
+if ($font_size = $RCMAIL->config->get('default_font_size')) {
+    $OUTPUT->set_env('default_font_size', $font_size);
+}
+
+// get reference message and set compose mode
+if ($msg_uid = $COMPOSE['param']['draft_uid']) {
+    $compose_mode = RCUBE_COMPOSE_DRAFT;
+    $OUTPUT->set_env('draft_id', $msg_uid);
+    $RCMAIL->storage->set_folder($drafts_mbox);
+}
+else if ($msg_uid = $COMPOSE['param']['reply_uid']) {
+    $compose_mode = RCUBE_COMPOSE_REPLY;
+}
+else if ($msg_uid = $COMPOSE['param']['forward_uid']) {
+    $compose_mode = RCUBE_COMPOSE_FORWARD;
+    $COMPOSE['forward_uid']   = $msg_uid;
+    $COMPOSE['as_attachment'] = !empty($COMPOSE['param']['attachment']);
+}
+else if ($msg_uid = $COMPOSE['param']['uid']) {
+    $compose_mode = RCUBE_COMPOSE_EDIT;
+}
+
+if ($compose_mode) {
+    $COMPOSE['mode'] = $compose_mode;
+    $OUTPUT->set_env('compose_mode', $compose_mode);
+}
+
+if ($compose_mode == RCUBE_COMPOSE_EDIT || $compose_mode == RCUBE_COMPOSE_DRAFT) {
+    // don't add signature in draft/edit mode, we'll also not remove the old-one
+    // but only on page display, later we should be able to change identity/sig (#1489229)
+    if ($config_show_sig == 1 || $config_show_sig == 2) {
+        $OUTPUT->set_env('show_sig_later', true);
+    }
+}
+else if ($config_show_sig == 1)
+    $OUTPUT->set_env('show_sig', true);
+else if ($config_show_sig == 2 && empty($compose_mode))
+    $OUTPUT->set_env('show_sig', true);
+else if ($config_show_sig == 3 && ($compose_mode == RCUBE_COMPOSE_REPLY || $compose_mode == RCUBE_COMPOSE_FORWARD))
+    $OUTPUT->set_env('show_sig', true);
+
+// set line length for body wrapping
+$LINE_LENGTH = $RCMAIL->config->get('line_length', 72);
+
+if (!empty($msg_uid) && empty($COMPOSE['as_attachment'])) {
+    $mbox_name = $RCMAIL->storage->get_folder();
+
+    // set format before rcube_message construction
+    // use the same format as for the message view
+    if (isset($_SESSION['msg_formats'][$mbox_name.':'.$msg_uid])) {
+        $RCMAIL->config->set('prefer_html', $_SESSION['msg_formats'][$mbox_name.':'.$msg_uid]);
+    }
+    else {
+        $prefer_html = $RCMAIL->config->get('prefer_html') || $RCMAIL->config->get('htmleditor')
+            || $compose_mode == RCUBE_COMPOSE_DRAFT || $compose_mode == RCUBE_COMPOSE_EDIT;
+
+        $RCMAIL->config->set('prefer_html', $prefer_html);
+    }
+
+    $MESSAGE = new rcube_message($msg_uid);
+
+    // make sure message is marked as read
+    if ($MESSAGE->headers && $MESSAGE->context === null && empty($MESSAGE->headers->flags['SEEN'])) {
+        $RCMAIL->storage->set_flag($msg_uid, 'SEEN');
+    }
+
+    if (!empty($MESSAGE->headers->charset)) {
+        $RCMAIL->storage->set_charset($MESSAGE->headers->charset);
+    }
+
+    if (!$MESSAGE->headers) {
+        // error
+    }
+    else if ($compose_mode == RCUBE_COMPOSE_FORWARD || $compose_mode == RCUBE_COMPOSE_REPLY) {
+        if ($compose_mode == RCUBE_COMPOSE_REPLY) {
+            $COMPOSE['reply_uid'] = $MESSAGE->context === null ? $msg_uid : null;
+
+            if (!empty($COMPOSE['param']['all'])) {
+                $MESSAGE->reply_all = $COMPOSE['param']['all'];
+            }
+        }
+        else {
+            $COMPOSE['forward_uid'] = $msg_uid;
+        }
+
+        $COMPOSE['reply_msgid'] = $MESSAGE->headers->messageID;
+        $COMPOSE['references']  = trim($MESSAGE->headers->references . " " . $MESSAGE->headers->messageID);
+
+        // Save the sent message in the same folder of the message being replied to
+        if ($RCMAIL->config->get('reply_same_folder') && ($sent_folder = $COMPOSE['mailbox'])
+            && rcmail_check_sent_folder($sent_folder, false)
+        ) {
+            $COMPOSE['param']['sent_mbox'] = $sent_folder;
+        }
+    }
+    else if ($compose_mode == RCUBE_COMPOSE_DRAFT || $compose_mode == RCUBE_COMPOSE_EDIT) {
+        if ($compose_mode == RCUBE_COMPOSE_DRAFT) {
+            if ($draft_info = $MESSAGE->headers->get('x-draft-info')) {
+                // get reply_uid/forward_uid to flag the original message when sending
+                $info = rcmail_draftinfo_decode($draft_info);
+
+                if ($info['type'] == 'reply')
+                    $COMPOSE['reply_uid'] = $info['uid'];
+                else if ($info['type'] == 'forward')
+                    $COMPOSE['forward_uid'] = $info['uid'];
+
+                $COMPOSE['mailbox'] = $info['folder'];
+
+                // Save the sent message in the same folder of the message being replied to
+                if ($RCMAIL->config->get('reply_same_folder') && ($sent_folder = $info['folder'])
+                    && rcmail_check_sent_folder($sent_folder, false)
+                ) {
+                    $COMPOSE['param']['sent_mbox'] = $sent_folder;
+                }
+            }
+
+            $COMPOSE['param']['message-id'] = $MESSAGE->headers->get('message-id');
+
+            // use message UID as draft_id
+            $OUTPUT->set_env('draft_id', $msg_uid);
+        }
+
+        if ($in_reply_to = $MESSAGE->headers->get('in-reply-to')) {
+            $COMPOSE['reply_msgid'] = '<' . $in_reply_to . '>';
+        }
+
+        $COMPOSE['references'] = $MESSAGE->headers->references;
+    }
+}
+else {
+    $MESSAGE = new stdClass();
+
+    // apply mailto: URL parameters
+    if (!empty($COMPOSE['param']['in-reply-to'])) {
+        $COMPOSE['reply_msgid'] = '<' . $COMPOSE['param']['in-reply-to'] . '>';
+    }
+
+    if (!empty($COMPOSE['param']['references'])) {
+        $COMPOSE['references'] = $COMPOSE['param']['references'];
+    }
+}
+
+if (!empty($COMPOSE['reply_msgid'])) {
+    $OUTPUT->set_env('reply_msgid', $COMPOSE['reply_msgid']);
+}
+
+$MESSAGE->compose = array();
+
+// get user's identities
+$MESSAGE->identities = $RCMAIL->user->list_identities(null, true);
+
+// Set From field value
+if (!empty($_POST['_from'])) {
+    $MESSAGE->compose['from'] = rcube_utils::get_input_value('_from', rcube_utils::INPUT_POST);
+}
+else if (!empty($COMPOSE['param']['from'])) {
+    $MESSAGE->compose['from'] = $COMPOSE['param']['from'];
+}
+else if (count($MESSAGE->identities)) {
+    $ident = rcmail_identity_select($MESSAGE, $MESSAGE->identities, $compose_mode);
+
+    $MESSAGE->compose['from']  = $ident['identity_id'];
+    $MESSAGE->compose['ident'] = $ident;
+}
+
+// process $MESSAGE body/attachments, set $MESSAGE_BODY/$HTML_MODE vars and some session data
+$MESSAGE_BODY = rcmail_prepare_message_body();
+
+$OUTPUT->include_script('publickey.js');
+
+// register UI objects
+$OUTPUT->add_handlers(array(
+    'composeheaders'        => 'rcmail_compose_headers',
+    'composesubject'        => 'rcmail_compose_subject',
+    'composebody'           => 'rcmail_compose_body',
+    'composeattachmentlist' => 'rcmail_compose_attachment_list',
+    'composeattachmentform' => 'rcmail_compose_attachment_form',
+    'composeattachment'     => 'rcmail_compose_attachment_field',
+    'filedroparea'          => 'compose_file_drop_area',
+    'priorityselector'      => 'rcmail_priority_selector',
+    'editorselector'        => 'rcmail_editor_selector',
+    'receiptcheckbox'       => 'rcmail_mdn_checkbox', // deprecated
+    'mdncheckbox'           => 'rcmail_mdn_checkbox',
+    'dsncheckbox'           => 'rcmail_dsn_checkbox',
+    'storetarget'           => 'rcmail_store_target_selection',
+    'addressbooks'          => 'rcmail_addressbook_list',
+    'addresslist'           => 'rcmail_contacts_list',
+    'responseslist'         => 'rcmail_compose_responses_list',
+));
+
+$OUTPUT->send('compose');
+
+
+/****** compose mode functions ********/
+
+// process compose request parameters
+function rcmail_process_compose_params(&$COMPOSE)
+{
+    if ($COMPOSE['param']['to']) {
+        $mailto = explode('?', $COMPOSE['param']['to'], 2);
+
+        // #1486037: remove "mailto:" prefix
+        $COMPOSE['param']['to'] = preg_replace('/^mailto:/i', '', $mailto[0]);
+        // #1490346: decode the recipient address
+        // #1490510: use raw encoding for correct "+" character handling as specified in RFC6068
+        $COMPOSE['param']['to'] = rawurldecode($COMPOSE['param']['to']);
+
+        // Supported case-insensitive tokens in mailto URL
+        $url_tokens = array('to', 'cc', 'bcc', 'reply-to', 'in-reply-to', 'references', 'subject', 'body');
+
+        if (!empty($mailto[1])) {
+            parse_str($mailto[1], $query);
+            foreach ($query as $f => $val) {
+                if (($key = array_search(strtolower($f), $url_tokens)) !== false) {
+                    $f = $url_tokens[$key];
+                }
+
+                // merge mailto: addresses with addresses from 'to' parameter
+                if ($f == 'to' && !empty($COMPOSE['param']['to'])) {
+                    $to_addresses  = rcube_mime::decode_address_list($COMPOSE['param']['to'], null, true, null, true);
+                    $add_addresses = rcube_mime::decode_address_list($val, null, true);
+
+                    foreach ($add_addresses as $addr) {
+                        if (!in_array($addr['mailto'], $to_addresses)) {
+                            $to_addresses[]         = $addr['mailto'];
+                            $COMPOSE['param']['to'] = (!empty($to_addresses) ? ', ' : '') . $addr['string'];
+                        }
+                    }
+                }
+                else {
+                    $COMPOSE['param'][$f] = $val;
+                }
+            }
+        }
+    }
+
+    // resolve _forward_uid=* to an absolute list of messages from a search result
+    if ($COMPOSE['param']['forward_uid'] == '*' && is_object($_SESSION['search'][1])) {
+        $COMPOSE['param']['forward_uid'] = $_SESSION['search'][1]->get();
+    }
+
+    // clean HTML message body which can be submitted by URL
+    if (!empty($COMPOSE['param']['body'])) {
+        if ($COMPOSE['param']['html'] = strpos($COMPOSE['param']['body'], '<') !== false) {
+            $wash_params = array('safe' => false, 'inline_html' => true);
+            $COMPOSE['param']['body'] = rcmail_wash_html($COMPOSE['param']['body'], $wash_params, array());
+            $COMPOSE['param']['body'] = preg_replace('/<!--[^>\n]+>/', '', $COMPOSE['param']['body']);
+            $COMPOSE['param']['body'] = preg_replace('/<\/?body>/', '', $COMPOSE['param']['body']);
+        }
+    }
+
+    $RCMAIL = rcmail::get_instance();
+
+    // select folder where to save the sent message
+    $COMPOSE['param']['sent_mbox'] = $RCMAIL->config->get('sent_mbox');
+
+    // pipe compose parameters thru plugins
+    $plugin = $RCMAIL->plugins->exec_hook('message_compose', $COMPOSE);
+    $COMPOSE['param'] = array_merge($COMPOSE['param'], $plugin['param']);
+
+    // add attachments listed by message_compose hook
+    if (is_array($plugin['attachments'])) {
+        foreach ($plugin['attachments'] as $attach) {
+            // we have structured data
+            if (is_array($attach)) {
+                $attachment = $attach + array('group' => $COMPOSE_ID);
+            }
+            // only a file path is given
+            else {
+                $filename   = basename($attach);
+                $attachment = array(
+                    'group'    => $COMPOSE_ID,
+                    'name'     => $filename,
+                    'mimetype' => rcube_mime::file_content_type($attach, $filename),
+                    'size'     => filesize($attach),
+                    'path'     => $attach,
+                );
+            }
+
+            // save attachment if valid
+            if (($attachment['data'] && $attachment['name']) || ($attachment['path'] && file_exists($attachment['path']))) {
+                $attachment = rcmail::get_instance()->plugins->exec_hook('attachment_save', $attachment);
+            }
+
+            if ($attachment['status'] && !$attachment['abort']) {
+                unset($attachment['data'], $attachment['status'], $attachment['abort']);
+                $COMPOSE['attachments'][$attachment['id']] = $attachment;
+            }
+        }
+    }
+}
+
+function rcmail_compose_headers($attrib)
+{
+    global $RCMAIL, $MESSAGE;
+
+    list($form_start,) = get_form_tags($attrib);
+
+    $out  = '';
+    $part = strtolower($attrib['part']);
+
+    switch ($part) {
+    case 'from':
+        return $form_start . rcmail_compose_header_from($attrib);
+
+    case 'to':
+    case 'cc':
+    case 'bcc':
+        $fname  = '_' . $part;
+        $header = $param = $part;
+
+        $allow_attrib = array('id', 'class', 'style', 'cols', 'rows', 'tabindex');
+        $field_type   = 'html_textarea';
+        break;
+
+    case 'replyto':
+    case 'reply-to':
+        $fname  = '_replyto';
+        $param  = 'replyto';
+        $header = 'reply-to';
+
+    case 'followupto':
+    case 'followup-to':
+        if (!$fname) {
+            $fname  = '_followupto';
+            $param  = 'followupto';
+            $header = 'mail-followup-to';
+        }
+
+        $allow_attrib = array('id', 'class', 'style', 'size', 'tabindex');
+        $field_type   = 'html_inputfield';
+        break;
+    }
+
+    if ($fname && $field_type) {
+        // pass the following attributes to the form class
+        $field_attrib = array('name' => $fname, 'spellcheck' => 'false');
+        foreach ($attrib as $attr => $value) {
+            if (in_array($attr, $allow_attrib)) {
+                $field_attrib[$attr] = $value;
+            }
+        }
+
+        // create teaxtarea object
+        $input = new $field_type($field_attrib);
+        $out   = $input->show(rcmail_compose_header_value($param));
+    }
+
+    if ($form_start) {
+        $out = $form_start . $out;
+    }
+
+    // configure autocompletion
+    $RCMAIL->autocomplete_init();
+
+    return $out;
+}
+
+
+function rcmail_compose_header_from($attrib)
+{
+    global $MESSAGE, $OUTPUT, $RCMAIL, $COMPOSE;
+
+    // pass the following attributes to the form class
+    $field_attrib = array('name' => '_from');
+    foreach ($attrib as $attr => $value) {
+        if (in_array($attr, array('id', 'class', 'style', 'size', 'tabindex'))) {
+            $field_attrib[$attr] = $value;
+        }
+    }
+
+    if (count($MESSAGE->identities)) {
+        $a_signatures = array();
+        $identities   = array();
+        $top_posting  = intval($RCMAIL->config->get('reply_mode')) > 0
+            && !$RCMAIL->config->get('sig_below')
+            && ($COMPOSE['mode'] == RCUBE_COMPOSE_REPLY || $COMPOSE['mode'] == RCUBE_COMPOSE_FORWARD);
+
+        $separator     = $top_posting ? '---' : '-- ';
+        $add_separator = (bool) $RCMAIL->config->get('sig_separator');
+
+        $field_attrib['onchange'] = rcmail_output::JS_OBJECT_NAME.".change_identity(this)";
+        $select_from = new html_select($field_attrib);
+
+        // create SELECT element
+        foreach ($MESSAGE->identities as $sql_arr) {
+            $identity_id = $sql_arr['identity_id'];
+            $select_from->add(format_email_recipient($sql_arr['email'], $sql_arr['name']), $identity_id);
+
+            // add signature to array
+            if (!empty($sql_arr['signature']) && empty($COMPOSE['param']['nosig'])) {
+                $text = $html = $sql_arr['signature'];
+
+                if ($sql_arr['html_signature']) {
+                    $text = $RCMAIL->html2text($html, array('links' => false));
+                    $text = trim($text, "\r\n");
+                }
+                else {
+                    $t2h  = new rcube_text2html($text, false);
+                    $html = $t2h->get_html();
+                }
+
+                if ($add_separator && !preg_match('/^--[ -]\r?\n/m', $text)) {
+                    $text = $separator . "\n" . ltrim($text, "\r\n");
+                    $html = $separator . "<br>" . $html;
+                }
+
+                $a_signatures[$identity_id]['text'] = $text;
+                $a_signatures[$identity_id]['html'] = $html;
+            }
+
+            // add bcc and reply-to
+            if (!empty($sql_arr['reply-to'])) {
+                $identities[$identity_id]['replyto'] = $sql_arr['reply-to'];
+            }
+            if (!empty($sql_arr['bcc'])) {
+                $identities[$identity_id]['bcc'] = $sql_arr['bcc'];
+            }
+
+            $identities[$identity_id]['email'] = $sql_arr['email'];
+        }
+
+        $out = $select_from->show($MESSAGE->compose['from']);
+
+        // add signatures to client
+        $OUTPUT->set_env('signatures', $a_signatures);
+        $OUTPUT->set_env('identities', $identities);
+    }
+    // no identities, display text input field
+    else {
+        $field_attrib['class'] = 'from_address';
+        $input_from = new html_inputfield($field_attrib);
+        $out = $input_from->show($MESSAGE->compose['from']);
+    }
+
+    return $out;
+}
+
+function rcmail_compose_header_value($header)
+{
+    global $COMPOSE, $MESSAGE;
+
+    $RCMAIL        = rcube::get_instance();
+    $fvalue        = '';
+    $decode_header = true;
+    $charset       = $MESSAGE->headers->charset;
+    $separator     = trim($RCMAIL->config->get('recipients_separator', ',')) . ' ';
+
+    // we have a set of recipients stored is session
+    if ($header == 'to' && ($mailto_id = $COMPOSE['param']['mailto'])
+        && $_SESSION['mailto'][$mailto_id]
+    ) {
+        $fvalue        = urldecode($_SESSION['mailto'][$mailto_id]);
+        $decode_header = false;
+        $charset       = $RCMAIL->output->charset;
+
+        // make session to not grow up too much
+        unset($_SESSION['mailto'][$mailto_id]);
+        $COMPOSE['param']['to'] = $fvalue;
+    }
+    else if (!empty($_POST['_' . $header])) {
+        $fvalue  = rcube_utils::get_input_value('_' . $header, rcube_utils::INPUT_POST, true);
+        $charset = $RCMAIL->output->charset;
+    }
+    else if (!empty($COMPOSE['param'][$header])) {
+        $fvalue  = $COMPOSE['param'][$header];
+        $charset = $RCMAIL->output->charset;
+    }
+    else if ($COMPOSE['mode'] == RCUBE_COMPOSE_REPLY) {
+        // get recipent address(es) out of the message headers
+        if ($header == 'to') {
+            $mailfollowup = $MESSAGE->headers->others['mail-followup-to'];
+            $mailreplyto  = $MESSAGE->headers->others['mail-reply-to'];
+
+            // Reply to mailing list...
+            if ($MESSAGE->reply_all == 'list' && $mailfollowup) {
+                $fvalue = $mailfollowup;
+            }
+            else if ($MESSAGE->reply_all == 'list'
+                && preg_match('/<mailto:([^>]+)>/i', $MESSAGE->headers->others['list-post'], $m)
+            ) {
+                $fvalue = $m[1];
+            }
+            // Reply to...
+            else if ($MESSAGE->reply_all && $mailfollowup) {
+                $fvalue = $mailfollowup;
+            }
+            else if ($mailreplyto) {
+                $fvalue = $mailreplyto;
+            }
+            else if (!empty($MESSAGE->headers->replyto)) {
+                $fvalue  = $MESSAGE->headers->replyto;
+                $replyto = true;
+            }
+            else if (!empty($MESSAGE->headers->from)) {
+                $fvalue = $MESSAGE->headers->from;
+            }
+
+            // Reply to message sent by yourself (#1487074, #1489230, #1490439)
+            // Reply-To address need to be unset (#1490233)
+            if (!empty($MESSAGE->compose['ident']) && empty($replyto)) {
+                foreach (array($fvalue, $MESSAGE->headers->from) as $sender) {
+                    $senders = rcube_mime::decode_address_list($sender, null, false, $charset, true);
+
+                    if (in_array($MESSAGE->compose['ident']['email_ascii'], $senders)) {
+                        $fvalue = $MESSAGE->headers->to;
+                        break;
+                    }
+                }
+            }
+        }
+        // add recipient of original message if reply to all
+        else if ($header == 'cc' && !empty($MESSAGE->reply_all) && $MESSAGE->reply_all != 'list') {
+            if ($v = $MESSAGE->headers->to) {
+                $fvalue .= $v;
+            }
+            if ($v = $MESSAGE->headers->cc) {
+                $fvalue .= (!empty($fvalue) ? $separator : '') . $v;
+            }
+            // Use Sender header (#1489011)
+            if ($v = $MESSAGE->headers->get('Sender', false)) {
+                // Skip common mailing lists addresses: *-bounces@ and *-request@ (#1490452)
+                if (empty($MESSAGE->headers->others['list-post']) || !preg_match('/-(bounces|request)@/', $v)) {
+                    $fvalue .= (!empty($fvalue) ? $separator : '') . $v;
+                }
+            }
+
+            // When To: and Reply-To: are the same we add From: address to the list (#1489037)
+            if ($v = $MESSAGE->headers->from) {
+                $from    = rcube_mime::decode_address_list($v, null, false, $charset, true);
+                $to      = rcube_mime::decode_address_list($MESSAGE->headers->to, null, false, $charset, true);
+                $replyto = rcube_mime::decode_address_list($MESSAGE->headers->replyto, null, false, $charset, true);
+
+                if (count($replyto) && !count(array_diff($to, $replyto)) && count(array_diff($from, $to))) {
+                    $fvalue .= (!empty($fvalue) ? $separator : '') . $v;
+                }
+            }
+        }
+    }
+    else if (in_array($COMPOSE['mode'], array(RCUBE_COMPOSE_DRAFT, RCUBE_COMPOSE_EDIT))) {
+        // get drafted headers
+        if ($header == 'to' && !empty($MESSAGE->headers->to)) {
+            $fvalue = $MESSAGE->get_header('to', true);
+        }
+        else if ($header == 'cc' && !empty($MESSAGE->headers->cc)) {
+            $fvalue = $MESSAGE->get_header('cc', true);
+        }
+        else if ($header == 'bcc' && !empty($MESSAGE->headers->bcc)) {
+            $fvalue = $MESSAGE->get_header('bcc', true);
+        }
+        else if ($header == 'replyto' && !empty($MESSAGE->headers->others['mail-reply-to'])) {
+            $fvalue = $MESSAGE->get_header('mail-reply-to');
+        }
+        else if ($header == 'replyto' && !empty($MESSAGE->headers->replyto)) {
+            $fvalue = $MESSAGE->get_header('reply-to');
+        }
+        else if ($header == 'followupto' && !empty($MESSAGE->headers->others['mail-followup-to'])) {
+            $fvalue = $MESSAGE->get_header('mail-followup-to');
+        }
+    }
+
+    // split recipients and put them back together in a unique way
+    if (!empty($fvalue) && in_array($header, array('to', 'cc', 'bcc'))) {
+        $from_email   = @mb_strtolower($MESSAGE->compose['ident']['email']);
+        $to_addresses = rcube_mime::decode_address_list($fvalue, null, $decode_header, $charset);
+        $fvalue       = array();
+
+        foreach ($to_addresses as $addr_part) {
+            if (empty($addr_part['mailto'])) {
+                continue;
+            }
+
+            // According to RFC5321 local part of email address is case-sensitive
+            // however, here it is better to compare addresses in case-insensitive manner
+            $mailto    = format_email(rcube_utils::idn_to_utf8($addr_part['mailto']));
+            $mailto_lc = mb_strtolower($addr_part['mailto']);
+
+            if (($header == 'to' || $COMPOSE['mode'] != RCUBE_COMPOSE_REPLY || $mailto_lc != $from_email)
+                && !in_array($mailto_lc, (array) $MESSAGE->recipients)
+            ) {
+                if ($addr_part['name'] && $mailto != $addr_part['name']) {
+                    $mailto = format_email_recipient($mailto, $addr_part['name']);
+                }
+
+                $fvalue[]              = $mailto;
+                $MESSAGE->recipients[] = $mailto_lc;
+            }
+        }
+
+        $fvalue = implode($separator, $fvalue);
+    }
+
+    return $fvalue;
+}
+
+function rcmail_compose_editor_mode()
+{
+    global $RCMAIL, $COMPOSE;
+    static $useHtml;
+
+    if ($useHtml !== null) {
+        return $useHtml;
+    }
+
+    $html_editor  = intval($RCMAIL->config->get('htmleditor'));
+    $compose_mode = $COMPOSE['mode'];
+
+    if (is_bool($COMPOSE['param']['html'])) {
+        $useHtml = $COMPOSE['param']['html'];
+    }
+    else if (isset($_POST['_is_html'])) {
+        $useHtml = !empty($_POST['_is_html']);
+    }
+    else if ($compose_mode == RCUBE_COMPOSE_DRAFT || $compose_mode == RCUBE_COMPOSE_EDIT) {
+        $useHtml = rcmail_message_is_html();
+    }
+    else if ($compose_mode == RCUBE_COMPOSE_REPLY) {
+        $useHtml = $html_editor == 1 || ($html_editor >= 2 && rcmail_message_is_html());
+    }
+    else if ($compose_mode == RCUBE_COMPOSE_FORWARD) {
+        $useHtml = $html_editor == 1 || $html_editor == 4
+            || ($html_editor == 3 && rcmail_message_is_html());
+    }
+    else {
+        $useHtml = $html_editor == 1 || $html_editor == 4;
+    }
+
+    return $useHtml;
+}
+
+function rcmail_message_is_html()
+{
+    global $RCMAIL, $MESSAGE;
+
+    return $RCMAIL->config->get('prefer_html') && ($MESSAGE instanceof rcube_message) && $MESSAGE->has_html_part(true);
+}
+
+function rcmail_prepare_message_body()
+{
+    global $RCMAIL, $MESSAGE, $COMPOSE, $HTML_MODE;
+
+    // use posted message body
+    if (!empty($_POST['_message'])) {
+        $body   = rcube_utils::get_input_value('_message', rcube_utils::INPUT_POST, true);
+        $isHtml = (bool) rcube_utils::get_input_value('_is_html', rcube_utils::INPUT_POST);
+    }
+    else if ($COMPOSE['param']['body']) {
+        $body   = $COMPOSE['param']['body'];
+        $isHtml = (bool) $COMPOSE['param']['html'];
+    }
+    // forward as attachment
+    else if ($COMPOSE['mode'] == RCUBE_COMPOSE_FORWARD && $COMPOSE['as_attachment']) {
+        $isHtml = rcmail_compose_editor_mode();
+        $body   = '';
+
+        rcmail_write_forward_attachments();
+    }
+    // reply/edit/draft/forward
+    else if ($COMPOSE['mode'] && ($COMPOSE['mode'] != RCUBE_COMPOSE_REPLY || intval($RCMAIL->config->get('reply_mode')) != -1)) {
+        $isHtml   = rcmail_compose_editor_mode();
+        $messages = array();
+
+        if (!empty($MESSAGE->parts)) {
+            // collect IDs of message/rfc822 parts
+            foreach ($MESSAGE->mime_parts() as $part) {
+                if ($part->mimetype == 'message/rfc822') {
+                    $messages[] = $part->mime_id;
+                }
+            }
+
+            foreach ($MESSAGE->parts as $part) {
+                if ($part->realtype == 'multipart/encrypted') {
+                    // find the encrypted message payload part
+                    if ($pgp_mime_part = $MESSAGE->get_multipart_encrypted_part()) {
+                        $RCMAIL->output->set_env('pgp_mime_message', array(
+                            '_mbox' => $RCMAIL->storage->get_folder(),
+                            '_uid'  => $MESSAGE->uid,
+                            '_part' => $pgp_mime_part->mime_id,
+                        ));
+                    }
+                    continue;
+                }
+
+                // skip no-content and attachment parts (#1488557)
+                if ($part->type != 'content' || !$part->size || $MESSAGE->is_attachment($part)) {
+                    continue;
+                }
+
+                // skip all content parts inside the message/rfc822 part
+                foreach ($messages as $mimeid) {
+                    if (strpos($part->mime_id, $mimeid . '.') === 0) {
+                        continue 2;
+                    }
+                }
+
+                if ($part_body = rcmail_compose_part_body($part, $isHtml)) {
+                    $body .= ($body ? ($isHtml ? '<br/>' : "\n") : '') . $part_body;
+                }
+            }
+        }
+        else {
+            $body = rcmail_compose_part_body($MESSAGE, $isHtml);
+        }
+
+        // compose reply-body
+        if ($COMPOSE['mode'] == RCUBE_COMPOSE_REPLY) {
+            $body = rcmail_create_reply_body($body, $isHtml);
+
+            if ($MESSAGE->pgp_mime) {
+                $RCMAIL->output->set_env('compose_reply_header', rcmail_get_reply_header($MESSAGE));
+            }
+        }
+        // forward message body inline
+        else if ($COMPOSE['mode'] == RCUBE_COMPOSE_FORWARD) {
+            $body = rcmail_create_forward_body($body, $isHtml);
+        }
+        // load draft message body
+        else if ($COMPOSE['mode'] == RCUBE_COMPOSE_DRAFT || $COMPOSE['mode'] == RCUBE_COMPOSE_EDIT) {
+            $body = rcmail_create_draft_body($body, $isHtml);
+        }
+    }
+    else { // new message
+        $isHtml = rcmail_compose_editor_mode();
+    }
+
+    $plugin = $RCMAIL->plugins->exec_hook('message_compose_body',
+        array('body' => $body, 'html' => $isHtml, 'mode' => $COMPOSE['mode']));
+
+    $body = $plugin['body'];
+    unset($plugin);
+
+    // add blocked.gif attachment (#1486516)
+    $regexp = '# src="program/resources/blocked\.gif"#';
+    if ($isHtml && preg_match($regexp, $body)) {
+        $content = $RCMAIL->get_resource_content('blocked.gif');
+
+        if ($content && ($attachment = rcmail_save_image('blocked.gif', 'image/gif', $content))) {
+            $COMPOSE['attachments'][$attachment['id']] = $attachment;
+            $url = sprintf('%s&_id=%s&_action=display-attachment&_file=rcmfile%s',
+                $RCMAIL->comm_path, $COMPOSE['id'], $attachment['id']);
+            $body = preg_replace($regexp, ' src="' . $url . '"', $body);
+        }
+    }
+
+    $HTML_MODE = $isHtml;
+
+    return $body;
+}
+
+function rcmail_compose_part_body($part, $isHtml = false)
+{
+    global $RCMAIL, $COMPOSE, $MESSAGE, $LINE_LENGTH;
+
+    // Check if we have enough memory to handle the message in it
+    // #1487424: we need up to 10x more memory than the body
+    if (!rcube_utils::mem_check($part->size * 10)) {
+        return '';
+    }
+
+    // fetch part if not available
+    $body = $MESSAGE->get_part_body($part->mime_id, true);
+
+    // message is cached but not exists (#1485443), or other error
+    if ($body === false) {
+        return '';
+    }
+
+    // register this part as pgp encrypted
+    if (strpos($body, '-----BEGIN PGP MESSAGE-----') !== false) {
+        $MESSAGE->pgp_mime = true;
+        $RCMAIL->output->set_env('pgp_mime_message', array(
+            '_mbox' => $RCMAIL->storage->get_folder(), '_uid' => $MESSAGE->uid, '_part' => $part->mime_id,
+        ));
+    }
+
+    if ($isHtml) {
+        if ($part->ctype_secondary == 'html') {
+        }
+        else if ($part->ctype_secondary == 'enriched') {
+            $body = rcube_enriched::to_html($body);
+        }
+        else {
+            // try to remove the signature
+            if ($COMPOSE['mode'] != RCUBE_COMPOSE_DRAFT && $COMPOSE['mode'] != RCUBE_COMPOSE_EDIT) {
+                if ($RCMAIL->config->get('strip_existing_sig', true)) {
+                    $body = rcmail_remove_signature($body);
+                }
+            }
+
+            // add HTML formatting
+            $body = rcmail_plain_body($body, $part->ctype_parameters['format'] == 'flowed', $part->ctype_parameters['delsp'] == 'yes');
+        }
+    }
+    else {
+        if ($part->ctype_secondary == 'enriched') {
+            $body = rcube_enriched::to_html($body);
+            $part->ctype_secondary = 'html';
+        }
+
+        if ($part->ctype_secondary == 'html') {
+            // use html part if it has been used for message (pre)viewing
+            // decrease line length for quoting
+            $len  = $COMPOSE['mode'] == RCUBE_COMPOSE_REPLY ? $LINE_LENGTH-2 : $LINE_LENGTH;
+            $body = $RCMAIL->html2text($body, array('width' => $len));
+        }
+        else {
+            if ($part->ctype_secondary == 'plain' && $part->ctype_parameters['format'] == 'flowed') {
+                $body = rcube_mime::unfold_flowed($body, null, $part->ctype_parameters['delsp'] == 'yes');
+            }
+
+            // try to remove the signature
+            if ($COMPOSE['mode'] != RCUBE_COMPOSE_DRAFT && $COMPOSE['mode'] != RCUBE_COMPOSE_EDIT) {
+                if ($RCMAIL->config->get('strip_existing_sig', true)) {
+                    $body = rcmail_remove_signature($body);
+                }
+            }
+        }
+    }
+
+    return $body;
+}
+
+function rcmail_compose_body($attrib)
+{
+    global $RCMAIL, $OUTPUT, $HTML_MODE, $MESSAGE_BODY;
+
+    list($form_start, $form_end) = get_form_tags($attrib);
+    unset($attrib['form']);
+
+    if (empty($attrib['id'])) {
+        $attrib['id'] = 'rcmComposeBody';
+    }
+
+    // If desired, set this textarea to be editable by TinyMCE
+    if ($HTML_MODE) {
+        $attrib['class'] = 'mce_editor';
+    }
+
+    $attrib['name'] = '_message';
+
+    $textarea = new html_textarea($attrib);
+    $hidden   = new html_hiddenfield();
+
+    $hidden->add(array('name' => '_draft_saveid', 'value' => $RCMAIL->output->get_env('draft_id')));
+    $hidden->add(array('name' => '_draft', 'value' => ''));
+    $hidden->add(array('name' => '_is_html', 'value' => $HTML_MODE ? "1" : "0"));
+    $hidden->add(array('name' => '_framed', 'value' => '1'));
+
+    $OUTPUT->set_env('composebody', $attrib['id']);
+
+    // include HTML editor
+    $RCMAIL->html_editor();
+
+    // Set language list
+    if ($RCMAIL->config->get('enable_spellcheck')) {
+        $engine           = new rcube_spellchecker();
+        $dictionary       = (bool) $RCMAIL->config->get('spellcheck_dictionary');
+        $spellcheck_langs = $engine->languages();
+        $lang             = $_SESSION['language'];
+
+        // if not found in the list, try with two-letter code
+        if (!$spellcheck_langs[$lang]) {
+            $lang = strtolower(substr($lang, 0, 2));
+        }
+
+        if (!$spellcheck_langs[$lang]) {
+            $lang = 'en';
+        }
+
+        $editor_lang_set = array();
+        foreach ($spellcheck_langs as $key => $name) {
+            $editor_lang_set[] = ($key == $lang ? '+' : '') . rcube::JQ($name).'='.rcube::JQ($key);
+        }
+
+        // include GoogieSpell
+        $OUTPUT->include_script('googiespell.js');
+        $OUTPUT->add_script(sprintf(
+            "var googie = new GoogieSpell('%s/images/googiespell/','%s&lang=', %s);\n".
+            "googie.lang_chck_spell = \"%s\";\n".
+            "googie.lang_rsm_edt = \"%s\";\n".
+            "googie.lang_close = \"%s\";\n".
+            "googie.lang_revert = \"%s\";\n".
+            "googie.lang_no_error_found = \"%s\";\n".
+            "googie.lang_learn_word = \"%s\";\n".
+            "googie.setLanguages(%s);\n".
+            "googie.setCurrentLanguage('%s');\n".
+            "googie.setDecoration(false);\n".
+            "googie.decorateTextarea('%s');\n",
+            $RCMAIL->output->asset_url($RCMAIL->output->get_skin_path()),
+            $RCMAIL->url(array('_task' => 'utils', '_action' => 'spell', '_remote' => 1)),
+                !empty($dictionary) ? 'true' : 'false',
+            rcube::JQ(rcube::Q($RCMAIL->gettext('checkspelling'))),
+            rcube::JQ(rcube::Q($RCMAIL->gettext('resumeediting'))),
+            rcube::JQ(rcube::Q($RCMAIL->gettext('close'))),
+            rcube::JQ(rcube::Q($RCMAIL->gettext('revertto'))),
+            rcube::JQ(rcube::Q($RCMAIL->gettext('nospellerrors'))),
+            rcube::JQ(rcube::Q($RCMAIL->gettext('addtodict'))),
+            rcube_output::json_serialize($spellcheck_langs),
+            $lang,
+            $attrib['id']), 'foot');
+
+        $OUTPUT->add_label('checking');
+        $OUTPUT->set_env('spellcheck_langs', join(',', $editor_lang_set));
+        $OUTPUT->set_env('spell_langs', $spellcheck_langs);
+        $OUTPUT->set_env('spell_lang', $lang);
+    }
+
+    return ($form_start ? "$form_start\n" : '')
+        . "\n" . $hidden->show() . "\n" . $textarea->show($MESSAGE_BODY)
+        . ($form_end ? "\n$form_end\n" : '')
+        . '<iframe name="savetarget" src="program/resources/blank.gif"'
+        . ' style="width:0;height:0;border:none;visibility:hidden;" aria-hidden="true"></iframe>';
+}
+
+
+function rcmail_create_reply_body($body, $bodyIsHtml)
+{
+    global $RCMAIL, $MESSAGE, $LINE_LENGTH;
+
+    $prefix     = rcmail_get_reply_header($MESSAGE);
+    $reply_mode = intval($RCMAIL->config->get('reply_mode'));
+
+    if (!$bodyIsHtml) {
+        // soft-wrap and quote message text
+        $body = rcmail_wrap_and_quote($body, $LINE_LENGTH);
+
+        $prefix .= "\n";
+
+        if ($reply_mode > 0) { // top-posting
+            $prefix = "\n\n\n" . $prefix;
+            $suffix = '';
+        }
+        else {
+            $suffix = "\n";
+        }
+    }
+    else {
+        // save inline images to files
+        $cid_map = rcmail_write_inline_attachments($MESSAGE);
+        // set is_safe flag (we need this for html body washing)
+        rcmail_check_safe($MESSAGE);
+        // clean up html tags
+        $body = rcmail_wash_html($body, array('safe' => $MESSAGE->is_safe), $cid_map);
+
+        // build reply (quote content)
+        $prefix = '<p>' . rcube::Q($prefix) . "</p>\n";
+        $prefix .= '<blockquote>';
+
+        if ($reply_mode > 0) { // top-posting
+            $prefix = '<br>' . $prefix;
+            $suffix = '</blockquote>';
+        }
+        else {
+            $suffix = '</blockquote><p><br/></p>';
+        }
+    }
+
+    return $prefix . $body . $suffix;
+}
+
+function rcmail_get_reply_header($message)
+{
+    global $RCMAIL;
+
+    $from = array_pop(rcube_mime::decode_address_list($message->get_header('from'), 1, false, $message->headers->charset));
+    return $RCMAIL->gettext(array(
+        'name' => 'mailreplyintro',
+        'vars' => array(
+            'date'   => $RCMAIL->format_date($message->headers->date, $RCMAIL->config->get('date_long')),
+            'sender' => $from['name'] ?: rcube_utils::idn_to_utf8($from['mailto']),
+        )
+    ));
+}
+
+function rcmail_create_forward_body($body, $bodyIsHtml)
+{
+    global $RCMAIL, $MESSAGE, $COMPOSE;
+
+    // add attachments
+    if (!isset($COMPOSE['forward_attachments']) && is_array($MESSAGE->mime_parts)) {
+        $cid_map = rcmail_write_compose_attachments($MESSAGE, $bodyIsHtml);
+    }
+
+    $date = $RCMAIL->format_date($MESSAGE->headers->date, $RCMAIL->config->get('date_long'));
+
+    if (!$bodyIsHtml) {
+        $prefix = "\n\n\n-------- " . $RCMAIL->gettext('originalmessage') . " --------\n";
+        $prefix .= $RCMAIL->gettext('subject') . ': ' . $MESSAGE->subject . "\n";
+        $prefix .= $RCMAIL->gettext('date')    . ': ' . $date . "\n";
+        $prefix .= $RCMAIL->gettext('from')    . ': ' . $MESSAGE->get_header('from') . "\n";
+        $prefix .= $RCMAIL->gettext('to')      . ': ' . $MESSAGE->get_header('to') . "\n";
+
+        if ($cc = $MESSAGE->headers->get('cc')) {
+            $prefix .= $RCMAIL->gettext('cc') . ': ' . $cc . "\n";
+        }
+        if (($replyto = $MESSAGE->headers->get('reply-to')) && $replyto != $MESSAGE->get_header('from')) {
+            $prefix .= $RCMAIL->gettext('replyto') . ': ' . $replyto . "\n";
+        }
+
+        $prefix .= "\n";
+        $body = trim($body, "\r\n");
+    }
+    else {
+        // set is_safe flag (we need this for html body washing)
+        rcmail_check_safe($MESSAGE);
+
+        // clean up html tags
+        $body = rcmail_wash_html($body, array('safe' => $MESSAGE->is_safe), $cid_map);
+
+        $prefix = sprintf(
+            "<br /><p>-------- " . $RCMAIL->gettext('originalmessage') . " --------</p>" .
+            "<table border=\"0\" cellpadding=\"0\" cellspacing=\"0\"><tbody>" .
+            "<tr><th align=\"right\" nowrap=\"nowrap\" valign=\"baseline\">%s: </th><td>%s</td></tr>" .
+            "<tr><th align=\"right\" nowrap=\"nowrap\" valign=\"baseline\">%s: </th><td>%s</td></tr>" .
+            "<tr><th align=\"right\" nowrap=\"nowrap\" valign=\"baseline\">%s: </th><td>%s</td></tr>" .
+            "<tr><th align=\"right\" nowrap=\"nowrap\" valign=\"baseline\">%s: </th><td>%s</td></tr>",
+            $RCMAIL->gettext('subject'), rcube::Q($MESSAGE->subject),
+            $RCMAIL->gettext('date'), rcube::Q($date),
+            $RCMAIL->gettext('from'), rcube::Q($MESSAGE->get_header('from'), 'replace'),
+            $RCMAIL->gettext('to'), rcube::Q($MESSAGE->get_header('to'), 'replace'));
+
+        if ($cc = $MESSAGE->headers->get('cc'))
+            $prefix .= sprintf("<tr><th align=\"right\" nowrap=\"nowrap\" valign=\"baseline\">%s: </th><td>%s</td></tr>",
+                $RCMAIL->gettext('cc'), rcube::Q($cc, 'replace'));
+
+        if (($replyto = $MESSAGE->headers->get('reply-to')) && $replyto != $MESSAGE->get_header('from'))
+            $prefix .= sprintf("<tr><th align=\"right\" nowrap=\"nowrap\" valign=\"baseline\">%s: </th><td>%s</td></tr>",
+                $RCMAIL->gettext('replyto'), rcube::Q($replyto, 'replace'));
+
+        $prefix .= "</tbody></table><br>";
+    }
+
+    return $prefix . $body;
+}
+
+
+function rcmail_create_draft_body($body, $bodyIsHtml)
+{
+    global $MESSAGE, $COMPOSE;
+
+    // add attachments
+    // count($MESSAGE->mime_parts) can be 1 - e.g. attachment, but no text!
+    if (empty($COMPOSE['forward_attachments'])
+        && is_array($MESSAGE->mime_parts)
+        && count($MESSAGE->mime_parts) > 0
+    ) {
+        $cid_map = rcmail_write_compose_attachments($MESSAGE, $bodyIsHtml);
+    }
+
+    // clean up HTML tags - XSS prevention (#1489251)
+    if ($bodyIsHtml) {
+        $body = rcmail_wash_html($body, array('safe' => 1), $cid_map);
+
+        // cleanup
+        $body = preg_replace(array(
+                // remove comments (produced by washtml)
+                '/<!--[^>]+-->/',
+                // remove <body> tags
+                '/<body([^>]*)>/i',
+                '/<\/body>/i',
+                // convert TinyMCE's empty-line sequence (#1490463)
+                '/<p>\xC2\xA0<\/p>/',
+            ),
+            array(
+                '',
+                '',
+                '',
+                '<p><br /></p>',
+            ),
+            $body
+        );
+
+        // replace cid with href in inline images links
+        if (!empty($cid_map)) {
+            $body = str_replace(array_keys($cid_map), array_values($cid_map), $body);
+        }
+    }
+
+    return $body;
+}
+
+
+function rcmail_remove_signature($body)
+{
+    global $RCMAIL;
+
+    $body = str_replace("\r\n", "\n", $body);
+    $len  = strlen($body);
+    $sig_max_lines = $RCMAIL->config->get('sig_max_lines', 15);
+
+    while (($sp = strrpos($body, "-- \n", $sp ? -$len+$sp-1 : 0)) !== false) {
+        if ($sp == 0 || $body[$sp-1] == "\n") {
+            // do not touch blocks with more that X lines
+            if (substr_count($body, "\n", $sp) < $sig_max_lines) {
+                $body = substr($body, 0, max(0, $sp-1));
+            }
+            break;
+        }
+    }
+
+    return $body;
+}
+
+
+function rcmail_write_compose_attachments(&$message, $bodyIsHtml)
+{
+    global $RCMAIL, $COMPOSE;
+
+    $loaded_attachments = array();
+    foreach ((array)$COMPOSE['attachments'] as $attachment) {
+        $loaded_attachments[$attachment['name'] . $attachment['mimetype']] = $attachment;
+    }
+
+    $cid_map  = array();
+    $messages = array();
+
+    if ($message->pgp_mime) {
+        return $cid_map;
+    }
+
+    foreach ((array) $message->mime_parts() as $pid => $part) {
+        if ($part->mimetype == 'message/rfc822') {
+            $messages[] = $part->mime_id;
+        }
+
+        if ($part->disposition == 'attachment' || ($part->disposition == 'inline' && $bodyIsHtml) || $part->filename) {
+            // skip parts that aren't valid attachments
+            if ($part->ctype_primary == 'multipart' || $part->mimetype == 'application/ms-tnef') {
+                continue;
+            }
+
+            // skip message attachments in reply mode
+            if ($part->ctype_primary == 'message' && $COMPOSE['mode'] == RCUBE_COMPOSE_REPLY) {
+                continue;
+            }
+
+            // skip inline images when forwarding in text mode
+            if ($part->content_id && $part->disposition == 'inline' && !$bodyIsHtml && $COMPOSE['mode'] == RCUBE_COMPOSE_FORWARD) {
+                continue;
+            }
+
+            // skip version.txt parts of multipart/encrypted messages
+            if ($message->pgp_mime && $part->mimetype == 'application/pgp-encrypted' && $part->filename == 'version.txt') {
+                continue;
+            }
+
+            // skip attachments included in message/rfc822 attachment (#1486487, #1490607)
+            foreach ($messages as $mimeid) {
+                if (strpos($part->mime_id, $mimeid . '.') === 0) {
+                    continue 2;
+                }
+            }
+
+            if (($attachment = $loaded_attachments[rcmail_attachment_name($part) . $part->mimetype])
+                || ($attachment = rcmail_save_attachment($message, $pid, $COMPOSE['id']))
+            ) {
+                if ($bodyIsHtml && ($part->content_id || $part->content_location)) {
+                    $url = sprintf('%s&_id=%s&_action=display-attachment&_file=rcmfile%s',
+                        $RCMAIL->comm_path, $COMPOSE['id'], $attachment['id']);
+
+                    if ($part->content_id)
+                        $cid_map['cid:'.$part->content_id] = $url;
+                    else
+                        $cid_map[$part->content_location] = $url;
+                }
+            }
+        }
+    }
+
+    $COMPOSE['forward_attachments'] = true;
+
+    return $cid_map;
+}
+
+
+function rcmail_write_inline_attachments(&$message)
+{
+    global $RCMAIL, $COMPOSE;
+
+    $cid_map  = array();
+    $messages = array();
+
+    if ($message->pgp_mime) {
+        return $cid_map;
+    }
+
+    foreach ((array) $message->mime_parts() as $pid => $part) {
+        if ($part->mimetype == 'message/rfc822') {
+            $messages[] = $part->mime_id;
+        }
+
+        if (($part->content_id || $part->content_location) && $part->filename) {
+            // skip attachments included in message/rfc822 attachment (#1486487, #1490607)
+            foreach ($messages as $mimeid) {
+                if (strpos($part->mime_id, $mimeid . '.') === 0) {
+                    continue 2;
+                }
+            }
+
+            if ($attachment = rcmail_save_attachment($message, $pid, $COMPOSE['id'])) {
+                $url = sprintf('%s&_id=%s&_action=display-attachment&_file=rcmfile%s',
+                    $RCMAIL->comm_path, $COMPOSE['id'], $attachment['id']);
+
+                if ($part->content_id)
+                    $cid_map['cid:'.$part->content_id] = $url;
+                else
+                    $cid_map[$part->content_location] = $url;
+            }
+        }
+    }
+
+    return $cid_map;
+}
+
+// Creates attachment(s) from the forwarded message(s)
+function rcmail_write_forward_attachments()
+{
+    global $RCMAIL, $COMPOSE, $MESSAGE;
+
+    $storage = $RCMAIL->get_storage();
+    $names   = array();
+    $refs    = array();
+
+    if ($MESSAGE->pgp_mime) {
+        return;
+    }
+
+    $loaded_attachments = array();
+    foreach ((array)$COMPOSE['attachments'] as $attachment) {
+        $loaded_attachments[$attachment['name'] . $attachment['mimetype']] = $attachment;
+    }
+
+    if ($COMPOSE['forward_uid'] == '*') {
+        $index = $storage->index(null, rcmail_sort_column(), rcmail_sort_order());
+        $COMPOSE['forward_uid'] = $index->get();
+    }
+    else if (!is_array($COMPOSE['forward_uid']) && strpos($COMPOSE['forward_uid'], ':')) {
+        $COMPOSE['forward_uid'] = rcube_imap_generic::uncompressMessageSet($COMPOSE['forward_uid']);
+    }
+    else if (is_string($COMPOSE['forward_uid'])) {
+        $COMPOSE['forward_uid'] = explode(',', $COMPOSE['forward_uid']);
+    }
+
+    foreach ((array)$COMPOSE['forward_uid'] as $uid) {
+        $message = new rcube_message($uid);
+
+        if (empty($message->headers)) {
+            continue;
+        }
+
+        if (!empty($message->headers->charset)) {
+            $storage->set_charset($message->headers->charset);
+        }
+
+        if (empty($MESSAGE->subject)) {
+            $MESSAGE->subject = $message->subject;
+        }
+
+        // generate (unique) attachment name
+        $name = strlen($message->subject) ? mb_substr($message->subject, 0, 64) : 'message_rfc822';
+        if (!empty($names[$name])) {
+            $names[$name]++;
+            $name .= '_' . $names[$name];
+        }
+        $names[$name] = 1;
+        $name .= '.eml';
+
+        if (!empty($loaded_attachments[$name . 'message/rfc822'])) {
+            continue;
+        }
+
+        rcmail_save_attachment($message, null, $COMPOSE['id'], array('filename' => $name));
+
+        if ($message->headers->messageID) {
+            $refs[] = $message->headers->messageID;
+        }
+    }
+
+    // set In-Reply-To and References headers
+    if (count($refs) == 1) {
+        $COMPOSE['reply_msgid'] = $refs[0];
+    }
+    if (!empty($refs)) {
+        $COMPOSE['references'] = implode(' ', $refs);
+    }
+}
+
+function rcmail_save_image($path, $mimetype = '', $data = null)
+{
+    global $COMPOSE;
+
+    // handle attachments in memory
+    if (empty($data)) {
+        $data    = file_get_contents($path);
+        $is_file = true;
+    }
+
+    $name = rcmail_basename($path);
+
+    if (empty($mimetype)) {
+        if ($is_file) {
+            $mimetype = rcube_mime::file_content_type($path, $name);
+        }
+        else {
+            $mimetype = rcube_mime::file_content_type($data, $name, 'application/octet-stream', true);
+        }
+    }
+
+    $attachment = array(
+        'group'    => $COMPOSE['id'],
+        'name'     => $name,
+        'mimetype' => $mimetype,
+        'data'     => $data,
+        'size'     => strlen($data),
+    );
+
+    $attachment = rcmail::get_instance()->plugins->exec_hook('attachment_save', $attachment);
+
+    if ($attachment['status']) {
+        unset($attachment['data'], $attachment['status'], $attachment['content_id'], $attachment['abort']);
+        return $attachment;
+    }
+
+    return false;
+}
+
+function rcmail_basename($filename)
+{
+    // basename() is not unicode safe and locale dependent
+    if (stristr(PHP_OS, 'win') || stristr(PHP_OS, 'netware')) {
+        return preg_replace('/^.*[\\\\\\/]/', '', $filename);
+    }
+    else {
+        return preg_replace('/^.*[\/]/', '', $filename);
+    }
+}
+
+/**
+ * Creates reply subject by removing common subject
+ * prefixes/suffixes from the original message subject
+ */
+function rcmail_reply_subject($subject)
+{
+    $subject = trim($subject);
+
+    // replace Re:, Re[x]:, Re-x (#1490497)
+    $prefix = '/^(re:|re\[\d\]:|re-\d:)\s*/i';
+    do {
+        $subject = preg_replace($prefix, '', $subject, -1, $count);
+    }
+    while ($count);
+
+    // replace (was: ...) (#1489375)
+    $subject = preg_replace('/\s*\([wW]as:[^\)]+\)\s*$/', '', $subject);
+
+    return 'Re: ' . $subject;
+}
+
+function rcmail_compose_subject($attrib)
+{
+    global $MESSAGE, $COMPOSE;
+
+    list($form_start, $form_end) = get_form_tags($attrib);
+    unset($attrib['form']);
+
+    $attrib['name']       = '_subject';
+    $attrib['spellcheck'] = 'true';
+
+    $textfield = new html_inputfield($attrib);
+    $subject   = '';
+
+    // use subject from post
+    if (isset($_POST['_subject'])) {
+        $subject = rcube_utils::get_input_value('_subject', rcube_utils::INPUT_POST, TRUE);
+    }
+    else if (!empty($COMPOSE['param']['subject'])) {
+        $subject = $COMPOSE['param']['subject'];
+    }
+    // create a reply-subject
+    else if ($COMPOSE['mode'] == RCUBE_COMPOSE_REPLY) {
+        $subject = rcmail_reply_subject($MESSAGE->subject);
+    }
+    // create a forward-subject
+    else if ($COMPOSE['mode'] == RCUBE_COMPOSE_FORWARD) {
+        if (preg_match('/^fwd:/i', $MESSAGE->subject))
+            $subject = $MESSAGE->subject;
+        else
+            $subject = 'Fwd: '.$MESSAGE->subject;
+    }
+    // creeate a draft-subject
+    else if ($COMPOSE['mode'] == RCUBE_COMPOSE_DRAFT || $COMPOSE['mode'] == RCUBE_COMPOSE_EDIT) {
+        $subject = $MESSAGE->subject;
+    }
+
+    $out = $form_start ? "$form_start\n" : '';
+    $out .= $textfield->show($subject);
+    $out .= $form_end ? "\n$form_end" : '';
+
+    return $out;
+}
+
+function rcmail_compose_attachment_list($attrib)
+{
+    global $RCMAIL, $OUTPUT, $COMPOSE;
+
+    // add ID if not given
+    if (!$attrib['id'])
+        $attrib['id'] = 'rcmAttachmentList';
+
+    $out    = "\n";
+    $jslist = array();
+    $button = '';
+
+    if ($attrib['icon_pos'] == 'left')
+        $COMPOSE['icon_pos'] = 'left';
+
+    if (is_array($COMPOSE['attachments'])) {
+        if ($attrib['deleteicon']) {
+            $button = html::img(array(
+                'src' => $RCMAIL->output->abs_url($attrib['deleteicon'], true),
+                'alt' => $RCMAIL->gettext('delete')
+            ));
+        }
+        else if (rcube_utils::get_boolean($attrib['textbuttons'])) {
+            $button = rcube::Q($RCMAIL->gettext('delete'));
+        }
+
+        foreach ($COMPOSE['attachments'] as $id => $a_prop) {
+            if (empty($a_prop)) {
+                continue;
+            }
+
+            $link_content = sprintf('%s <span class="attachment-size"> (%s)</span>',
+                rcube::Q($a_prop['name']), $RCMAIL->show_bytes($a_prop['size']));
+
+            $content_link = html::a(array(
+                    'href'    => "#load",
+                    'class'   => 'filename',
+                    'onclick' => sprintf("return %s.command('load-attachment','rcmfile%s', this, event)", rcmail_output::JS_OBJECT_NAME, $id),
+                ), $link_content);
+
+            $delete_link = html::a(array(
+                    'href'    => "#delete",
+                    'title'   => $RCMAIL->gettext('delete'),
+                    'onclick' => sprintf("return %s.command('remove-attachment','rcmfile%s', this, event)", rcmail_output::JS_OBJECT_NAME, $id),
+                    'class'   => 'delete',
+                    'tabindex' => $attrib['tabindex'] ?: '0',
+                    'aria-label'   => $RCMAIL->gettext('delete') . ' ' . $a_prop['name'],
+                ), $button);
+
+            $out .= html::tag('li', array(
+                    'id'          => 'rcmfile'.$id,
+                    'class'       => rcube_utils::file2class($a_prop['mimetype'], $a_prop['name']),
+                    'onmouseover' => "rcube_webmail.long_subject_title_ex(this, 0)",
+                ),
+                $COMPOSE['icon_pos'] == 'left' ? $delete_link.$content_link : $content_link.$delete_link
+            );
+
+            $jslist['rcmfile'.$id] = array(
+                'name'     => $a_prop['name'],
+                'complete' => true,
+                'mimetype' => $a_prop['mimetype']
+            );
+        }
+    }
+
+    if ($attrib['deleteicon'])
+        $COMPOSE['deleteicon'] = $RCMAIL->output->abs_url($attrib['deleteicon'], true);
+    else if (rcube_utils::get_boolean($attrib['textbuttons']))
+        $COMPOSE['textbuttons'] = true;
+    if ($attrib['cancelicon'])
+        $OUTPUT->set_env('cancelicon', $RCMAIL->output->abs_url($attrib['cancelicon'], true));
+    if ($attrib['loadingicon'])
+        $OUTPUT->set_env('loadingicon', $RCMAIL->output->abs_url($attrib['loadingicon'], true));
+
+    $OUTPUT->set_env('attachments', $jslist);
+    $OUTPUT->add_gui_object('attachmentlist', $attrib['id']);
+
+    // put tabindex value into data-tabindex attribute
+    if (isset($attrib['tabindex'])) {
+        $attrib['data-tabindex'] = $attrib['tabindex'];
+        unset($attrib['tabindex']);
+    }
+
+    return html::tag('ul', $attrib, $out, html::$common_attrib);
+}
+
+
+function rcmail_compose_attachment_form($attrib)
+{
+    global $RCMAIL;
+
+    return $RCMAIL->upload_form($attrib, 'uploadform', 'send-attachment', array('multiple' => true));
+}
+
+function rcmail_priority_selector($attrib)
+{
+    global $RCMAIL, $MESSAGE;
+
+    list($form_start, $form_end) = get_form_tags($attrib);
+    unset($attrib['form']);
+
+    $attrib['name'] = '_priority';
+    $prio_list = array(
+        $RCMAIL->gettext('lowest')  => 5,
+        $RCMAIL->gettext('low')     => 4,
+        $RCMAIL->gettext('normal')  => 0,
+        $RCMAIL->gettext('high')    => 2,
+        $RCMAIL->gettext('highest') => 1,
+    );
+
+    $selector = new html_select($attrib);
+    $selector->add(array_keys($prio_list), array_values($prio_list));
+
+    if (isset($_POST['_priority']))
+        $sel = $_POST['_priority'];
+    else if (isset($MESSAGE->headers->priority) && intval($MESSAGE->headers->priority) != 3)
+        $sel = $MESSAGE->headers->priority;
+    else
+        $sel = 0;
+
+    $out = $form_start ? "$form_start\n" : '';
+    $out .= $selector->show((int) $sel);
+    $out .= $form_end ? "\n$form_end" : '';
+
+    return $out;
+}
+
+
+function rcmail_mdn_checkbox($attrib)
+{
+    global $RCMAIL, $MESSAGE;
+
+    list($form_start, $form_end) = get_form_tags($attrib);
+    unset($attrib['form']);
+
+    if (!isset($attrib['id']))
+        $attrib['id'] = 'receipt';
+
+    $attrib['name']  = '_mdn';
+    $attrib['value'] = '1';
+
+    $checkbox = new html_checkbox($attrib);
+
+    if (isset($_POST['_mdn']))
+        $mdn_default = $_POST['_mdn'];
+    else if (in_array($COMPOSE['mode'], array(RCUBE_COMPOSE_DRAFT, RCUBE_COMPOSE_EDIT)))
+        $mdn_default = (bool) $MESSAGE->headers->mdn_to;
+    else
+        $mdn_default = $RCMAIL->config->get('mdn_default');
+
+    $out = $form_start ? "$form_start\n" : '';
+    $out .= $checkbox->show($mdn_default);
+    $out .= $form_end ? "\n$form_end" : '';
+
+    return $out;
+}
+
+
+function rcmail_dsn_checkbox($attrib)
+{
+    global $RCMAIL;
+
+    list($form_start, $form_end) = get_form_tags($attrib);
+    unset($attrib['form']);
+
+    if (!isset($attrib['id']))
+        $attrib['id'] = 'dsn';
+
+    $attrib['name']  = '_dsn';
+    $attrib['value'] = '1';
+
+    $checkbox = new html_checkbox($attrib);
+
+    if (isset($_POST['_dsn']))
+        $dsn_value = (int) $_POST['_dsn'];
+    else
+        $dsn_value = $RCMAIL->config->get('dsn_default');
+
+    $out = $form_start ? "$form_start\n" : '';
+    $out .= $checkbox->show($dsn_value);
+    $out .= $form_end ? "\n$form_end" : '';
+
+    return $out;
+}
+
+
+function rcmail_editor_selector($attrib)
+{
+    global $RCMAIL;
+
+    // determine whether HTML or plain text should be checked
+    $useHtml = rcmail_compose_editor_mode();
+
+    if (empty($attrib['editorid']))
+        $attrib['editorid'] = 'rcmComposeBody';
+
+    if (empty($attrib['name']))
+        $attrib['name'] = 'editorSelect';
+
+    $attrib['onchange'] = "return rcmail.command('toggle-editor', {id: '".$attrib['editorid']."', html: this.value == 'html'}, '', event)";
+
+    $select = new html_select($attrib);
+
+    $select->add(rcube::Q($RCMAIL->gettext('htmltoggle')), 'html');
+    $select->add(rcube::Q($RCMAIL->gettext('plaintoggle')), 'plain');
+
+    return $select->show($useHtml ? 'html' : 'plain');
+}
+
+
+function rcmail_store_target_selection($attrib)
+{
+    global $COMPOSE, $RCMAIL;
+
+    $attrib['name'] = '_store_target';
+    $select = $RCMAIL->folder_selector(array_merge($attrib, array(
+        'noselection'   => '- ' . $RCMAIL->gettext('dontsave') . ' -',
+        'folder_filter' => 'mail',
+        'folder_rights' => 'w',
+    )));
+
+    return $select->show(isset($_POST['_store_target']) ? $_POST['_store_target'] : $COMPOSE['param']['sent_mbox'], $attrib);
+}
+
+
+function rcmail_check_sent_folder($folder, $create=false)
+{
+    global $RCMAIL;
+
+    // we'll not save the message, so it doesn't matter
+    if ($RCMAIL->config->get('no_save_sent_messages')) {
+        return true;
+    }
+
+    if ($RCMAIL->storage->folder_exists($folder, true)) {
+        return true;
+    }
+
+    // folder may exist but isn't subscribed (#1485241)
+    if ($create) {
+        if (!$RCMAIL->storage->folder_exists($folder))
+            return $RCMAIL->storage->create_folder($folder, true);
+        else
+            return $RCMAIL->storage->subscribe($folder);
+    }
+
+    return false;
+}
+
+
+function get_form_tags($attrib)
+{
+    global $RCMAIL, $MESSAGE_FORM, $COMPOSE;
+
+    $form_start = '';
+    if (!$MESSAGE_FORM) {
+        $hiddenfields = new html_hiddenfield(array('name' => '_task', 'value' => $RCMAIL->task));
+        $hiddenfields->add(array('name' => '_action', 'value' => 'send'));
+        $hiddenfields->add(array('name' => '_id', 'value' => $COMPOSE['id']));
+        $hiddenfields->add(array('name' => '_attachments'));
+
+        $form_start = empty($attrib['form']) ? $RCMAIL->output->form_tag(array('name' => "form", 'method' => "post")) : '';
+        $form_start .= $hiddenfields->show();
+    }
+
+    $form_end  = ($MESSAGE_FORM && !strlen($attrib['form'])) ? '</form>' : '';
+    $form_name = $attrib['form'] ?: 'form';
+
+    if (!$MESSAGE_FORM)
+        $RCMAIL->output->add_gui_object('messageform', $form_name);
+
+    $MESSAGE_FORM = $form_name;
+
+    return array($form_start, $form_end);
+}
+
+
+function rcmail_addressbook_list($attrib = array())
+{
+    global $RCMAIL, $OUTPUT;
+
+    $attrib += array('id' => 'rcmdirectorylist');
+
+    $out = '';
+    $line_templ = html::tag('li', array(
+        'id' => 'rcmli%s', 'class' => '%s'),
+        html::a(array('href' => '#list',
+            'rel' => '%s',
+            'onclick' => "return ".rcmail_output::JS_OBJECT_NAME.".command('list-addresses','%s',this)"), '%s'));
+
+    foreach ($RCMAIL->get_address_sources(false, true) as $j => $source) {
+        $id = strval(strlen($source['id']) ? $source['id'] : $j);
+        $js_id = rcube::JQ($id);
+
+        // set class name(s)
+        $class_name = 'addressbook';
+        if ($source['class_name'])
+            $class_name .= ' ' . $source['class_name'];
+
+        $out .= sprintf($line_templ,
+            rcube_utils::html_identifier($id,true),
+            $class_name,
+            $source['id'],
+            $js_id, ($source['name'] ?: $id));
+    }
+
+    $OUTPUT->add_gui_object('addressbookslist', $attrib['id']);
+
+    return html::tag('ul', $attrib, $out, html::$common_attrib);
+}
+
+// return the contacts list as HTML table
+function rcmail_contacts_list($attrib = array())
+{
+    global $RCMAIL, $OUTPUT;
+
+    $attrib += array('id' => 'rcmAddressList');
+
+    // set client env
+    $OUTPUT->add_gui_object('contactslist', $attrib['id']);
+    $OUTPUT->set_env('pagecount', 0);
+    $OUTPUT->set_env('current_page', 0);
+    $OUTPUT->include_script('list.js');
+
+    return $RCMAIL->table_output($attrib, array(), array('name'), 'ID');
+}
+
+
+/**
+ * Register a certain container as active area to drop files onto
+ */
+function compose_file_drop_area($attrib)
+{
+    global $OUTPUT;
+
+    if ($attrib['id']) {
+        $OUTPUT->add_gui_object('filedrop', $attrib['id']);
+        $OUTPUT->set_env('filedrop', array('action' => 'upload', 'fieldname' => '_attachments'));
+    }
+}
+
+
+/**
+ *
+ */
+function rcmail_compose_responses_list($attrib)
+{
+    global $RCMAIL, $OUTPUT;
+
+    $attrib += array('id' => 'rcmresponseslist', 'tagname' => 'ul', 'cols' => 1);
+
+    $jsenv = array();
+    $list = new html_table($attrib);
+    foreach ($RCMAIL->get_compose_responses(true) as $response) {
+        $key = $response['key'];
+        $item = html::a(array(
+            'href' => '#'.urlencode($response['name']),
+            'class' => rtrim('insertresponse ' . $attrib['itemclass']),
+            'unselectable' => 'on',
+            'tabindex' => '0',
+            'rel' => $key,
+        ), rcube::Q($response['name']));
+
+        $jsenv[$key] = $response;
+        $list->add(array(), $item);
+    }
+
+    // set client env
+    $OUTPUT->set_env('textresponses', $jsenv);
+    $OUTPUT->add_gui_object('responseslist', $attrib['id']);
+
+    return $list->show();
+}