From 09c1a5573cf5702e66bbb6f9873618c0187e592b Mon Sep 17 00:00:00 2001
From: Josaphat Imani <josaphat.imani97@gmail.com>
Date: Wed, 31 Jan 2024 19:33:05 +0200
Subject: [PATCH] Added MDN to compose form

---
 modules/smtp/hm-smtp.php | 13 ++++++++++---
 modules/smtp/modules.php | 12 ++++++++++--
 modules/smtp/setup.php   |  1 +
 3 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/modules/smtp/hm-smtp.php b/modules/smtp/hm-smtp.php
index d842ecb705..a2b003ce9f 100644
--- a/modules/smtp/hm-smtp.php
+++ b/modules/smtp/hm-smtp.php
@@ -522,17 +522,24 @@ function des_encrypt($string, $challenge='KGS!@#$%') {
     }
 
     /* Send a message */
-    function send_message($from, $recipients, $message) {
+    function send_message($from, $recipients, $message, $from_params = '', $recipients_params = '') {
         $this->clean($from);
-        $command = 'MAIL FROM:<'.$from.'>';
+        if ($from_params) {
+            $from_params = ' ' . $from_params;
+        }
+        $from_params = $from_params ? ' ' . $from_params : '';
+        $command = 'MAIL FROM:<'.$from.'>' . $from_params;
         $this->send_command($command);
         $res = $this->get_response();
         $bail = false;
         $result = 'An error occurred sending the message';
         if(is_array($recipients)) {
+            if ($recipients_params) {
+                $recipients_params = ' ' . $recipients_params;
+            }
             foreach($recipients as $rcpt) {
                 $this->clean($rcpt);
-                $command = 'RCPT TO:<'.$rcpt.'>';
+                $command = 'RCPT TO:<'.$rcpt.'>'.$recipients_params;
                 $this->send_command($command);
                 $res = $this->get_response();
                 if ($this->compare_response($res, '250') != 0) {
diff --git a/modules/smtp/modules.php b/modules/smtp/modules.php
index 8afbd1d5c5..25e0654de8 100644
--- a/modules/smtp/modules.php
+++ b/modules/smtp/modules.php
@@ -668,6 +668,8 @@ public function process() {
             'draft_subject' => $form['compose_subject'],
             'draft_smtp' => $smtp_id
         );
+        $from_params = '';
+        $recipients_params = '';
 
         /* parse attachments */
         $uploaded_files = [];
@@ -685,6 +687,11 @@ public function process() {
         /* msg details */
         list($body, $cc, $bcc, $in_reply_to, $draft) = get_outbound_msg_detail($this->request->post, $draft, $body_type);
 
+        if ($this->request->post['compose_delivery_receipt']) {
+            $from_params      = 'RET=HDRS';
+            $recipients_params = 'NOTIFY=SUCCESS,FAILURE';
+        }
+
         /* smtp server details */
         $smtp_details = Hm_SMTP_List::dump($smtp_id, true);
         if (!$smtp_details) {
@@ -727,7 +734,7 @@ public function process() {
         }
 
         /* send the message */
-        $err_msg = $smtp->send_message($from, $recipients, $mime->get_mime_msg());
+        $err_msg = $smtp->send_message($from, $recipients, $mime->get_mime_msg(), $from_params, $recipients_params);
         if ($err_msg) {
             Hm_Msgs::add(sprintf("ERR%s", $err_msg));
             repopulate_compose_form($draft, $this);
@@ -1076,7 +1083,8 @@ protected function output() {
             '<div id="bcc_contacts"></div></div></div><input value="'.$this->html_safe($subject).
             '" name="compose_subject" class="compose_subject" type="text" placeholder="'.
             $this->trans('Subject').'" /><textarea id="compose_body" name="compose_body" class="compose_body">'.
-            $this->html_safe($body).'</textarea>';
+            $this->html_safe($body).'</textarea>'.
+            '<div><input value="1" name="compose_delivery_receipt" id="compose_delivery_receipt" type="checkbox" /><label for="compose_delivery_receipt">'.$this->trans('Request a delivery receipt').'</label></div>';
         if ($html == 2) {
             $res .= '<link href="'.WEB_ROOT.'modules/smtp/assets/markdown/editor.css" rel="stylesheet" />'.
                 '<script type="text/javascript" src="'.WEB_ROOT.'modules/smtp/assets/markdown/editor.js"></script>'.
diff --git a/modules/smtp/setup.php b/modules/smtp/setup.php
index 302736112a..6ff9569e27 100644
--- a/modules/smtp/setup.php
+++ b/modules/smtp/setup.php
@@ -162,6 +162,7 @@
         'compose_cc' => FILTER_UNSAFE_RAW,
         'compose_bcc' => FILTER_UNSAFE_RAW,
         'compose_smtp_id' => FILTER_SANITIZE_FULL_SPECIAL_CHARS,
+        'compose_delivery_receipt' => FILTER_VALIDATE_BOOLEAN,
         'draft_id' => FILTER_VALIDATE_INT,
         'draft_body' => FILTER_UNSAFE_RAW,
         'draft_subject' => FILTER_UNSAFE_RAW,