mailgun · oleksandr-mykhailenko · Sep 18, 2023 · Sep 10, 2023
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,10 @@
 Changelog
 =========
+1.9.6 (2023-09-10)
+- Added typehints to methods 
+- Added code for making plugin WP VIP GO compatible for the `From mail`
+- Added Toastr for sending nice message instead of using alerts
+
 1.9.5 (2023-06-20)
 - Fix bug with sending emails
 

diff --git a/includes/admin.php b/includes/admin.php
@@ -102,7 +102,7 @@ public function init()
      * @return    void
      *
      */
-    public function admin_menu()
+    public function admin_menu(): void
     {
         if (current_user_can('manage_options')) {
             $this->hook_suffix = add_options_page(__('Mailgun', 'mailgun'), __('Mailgun', 'mailgun'),
@@ -121,7 +121,7 @@ public function admin_menu()
      * @return    void
      *
      */
-    public function admin_js()
+    public function admin_js(): void
     {
         wp_enqueue_script('jquery');
     }
@@ -130,10 +130,13 @@ public function admin_js()
      * Output JS to footer for enhanced admin page functionality.
      *
      */
-    public function admin_footer_js()
+    public function admin_footer_js(): void
     {
         ?>
+        <link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/toastr.js/latest/toastr.min.css" >
+        <script src="//cdnjs.cloudflare.com/ajax/libs/toastr.js/latest/toastr.min.js"></script>
         <script type="text/javascript">
+
             /* <![CDATA[ */
             var mailgunApiOrNot = function () {
                 if (jQuery('#mailgun-api').val() == 1) {
@@ -173,13 +176,16 @@ public function admin_footer_js()
                             jQuery('#mailgun-test').val('<?php _e('Test Configuration', 'mailgun'); ?>')
                         })
                         .success(function (data) {
-                            alert(
-                                'Mailgun ' + data.method + ' Test ' + data.message
-                                + '; status "' + data.error + '"'
-                            )
+                            if (typeof data.message !== 'undefined' && data.message === 'Failure') {
+                                toastr.error('Mailgun ' + data.method + ' Test ' + data.message
+                                    + '; status "' + data.error + '"');
+                            } else {
+                                toastr.success('Mailgun ' + data.method + ' Test ' + data.message
+                                    + '; status "' + data.error + '"');
+                            }
                         })
                         .error(function () {
-                            alert('Mailgun Test <?php _e('Failure', 'mailgun'); ?>')
+                            toastr.error('Mailgun Test <?php _e('Failure', 'mailgun'); ?>')
                         })
                 })
                 jQuery('#mailgun-form').change(function () {
@@ -197,7 +203,7 @@ public function admin_footer_js()
      * @return    void
      *
      */
-    public function options_page()
+    public function options_page(): void
     {
         if (!@include 'options-page.php') {
             printf(__('<div id="message" class="updated fade"><p>The options page for the <strong>Mailgun</strong> plugin cannot be displayed. The file <strong>%s</strong> is missing.  Please reinstall the plugin.</p></div>',
@@ -211,7 +217,7 @@ public function options_page()
      * @return    void
      *
      */
-    public function lists_page()
+    public function lists_page(): void
     {
         if (!@include 'lists-page.php') {
             printf(__('<div id="message" class="updated fade"><p>The lists page for the <strong>Mailgun</strong> plugin cannot be displayed. The file <strong>%s</strong> is missing.  Please reinstall the plugin.</p></div>',
@@ -227,7 +233,7 @@ public function lists_page()
      * @return    void
      *
      */
-    public function admin_init()
+    public function admin_init(): void
     {
         $this->register_settings();
 
@@ -240,7 +246,7 @@ public function admin_init()
      * @return    void
      *
      */
-    public function register_settings()
+    public function register_settings(): void
     {
         register_setting('mailgun', 'mailgun', array(&$this, 'validation'));
     }
@@ -253,7 +259,7 @@ public function register_settings()
      * @return    array
      *
      */
-    public function validation(array $options)
+    public function validation(array $options): array
     {
         $apiKey = trim($options['apiKey']);
         $username = trim($options['username']);
@@ -303,12 +309,15 @@ public function validation(array $options)
      * @return    void
      *
      */
-    public function admin_notices()
+    public function admin_notices(): void
     {
         $screen = get_current_screen();
-        if (!current_user_can('manage_options') || $screen->id == $this->hook_suffix):
+        if (!isset($screen)) {
             return;
-        endif;
+        }
+        if (!current_user_can('manage_options') || $screen->id === $this->hook_suffix) {
+            return;
+        }
 
         $smtpPasswordUndefined = (!$this->get_option('password') && (!defined('MAILGUN_PASSWORD') || !MAILGUN_PASSWORD));
         $smtpActiveNotConfigured = ($this->get_option('useAPI') === '0' && $smtpPasswordUndefined);
@@ -362,7 +371,7 @@ public function admin_notices()
      * @return    array
      *
      */
-    public function filter_plugin_actions($links)
+    public function filter_plugin_actions($links): array
     {
         $settings_link = '<a href="' . menu_page_url('mailgun', false) . '">' . __('Settings', 'mailgun') . '</a>';
         array_unshift($links, $settings_link);
@@ -427,13 +436,19 @@ public function ajax_send_test()
                 ), JSON_THROW_ON_ERROR)
             );
         }
-        $result = wp_mail(
-            $admin_email,
-            __('Mailgun WordPress Plugin Test', 'mailgun'),
-            sprintf(__("This is a test email generated by the Mailgun WordPress plugin.\n\nIf you have received this message, the requested test has succeeded.\n\nThe sending region is set to %s.\n\nThe method used to send this email was: %s.",
-                'mailgun'), $region, $method),
-            ['Content-Type: text/plain']
-        );
+
+        try {
+            $result = wp_mail(
+                $admin_email,
+                __('Mailgun WordPress Plugin Test', 'mailgun'),
+                sprintf(__("This is a test email generated by the Mailgun WordPress plugin.\n\nIf you have received this message, the requested test has succeeded.\n\nThe sending region is set to %s.\n\nThe method used to send this email was: %s.",
+                    'mailgun'), $region, $method),
+                ['Content-Type: text/plain']
+            );
+        } catch (Throwable $throwable) {
+            //Log purpose
+        }
+
 
 
 

diff --git a/includes/mg-filter.php b/includes/mg-filter.php
@@ -331,3 +331,44 @@ function mg_smtp_get_region($getRegion)
             return false;
     }
 }
+
+/**
+ * Override WP VIP GO filter
+ * It sets default email address to `[email protected]`
+ */
+if ((defined('WPCOM_IS_VIP_ENV') && WPCOM_IS_VIP_ENV) || (defined('VIP_GO_ENV') && VIP_GO_ENV)) {
+
+    global $mg_from_mail;
+
+    /**
+     * @param string $from_mail
+     * @return mixed
+     */
+    function mg_wp_mail_from_standard(string $from_mail)
+    {
+        global $mg_from_mail;
+
+        $mg_from_mail = $from_mail;
+
+        return $from_mail;
+    }
+
+    add_filter('wp_mail_from', 'mg_wp_mail_from_standard', 0);
+
+    /**
+     * @param string $from_mail
+     * @return mixed
+     */
+    function mg_wp_mail_from_new(string $from_mail)
+    {
+        global $mg_from_mail;
+
+        if (!empty($mg_from_mail) && is_email($mg_from_mail)) {
+            return $mg_from_mail;
+        }
+
+        return $from_mail;
+    }
+
+    add_filter('wp_mail_from', 'mg_wp_mail_from_new', 2);
+}
diff --git a/includes/widget.php b/includes/widget.php
@@ -33,8 +33,12 @@ public function __construct()
         );
     }
 
-    // Creating widget front-end
-    // This is where the action happens
+    /**
+     * @param $args
+     * @param $instance
+     * @return void
+     * @throws JsonException
+     */
     public function widget($args, $instance)
     {
         $mailgun = Mailgun::getInstance();
@@ -61,6 +65,11 @@ public function widget($args, $instance)
     }
 
     // Widget Backend
+
+    /**
+     * @param $instance
+     * @return string|void
+     */
     public function form($instance)
     {
         if (isset($instance['list_address'])) {
@@ -102,11 +111,14 @@ public function form($instance)
     }
 
     // Updating widget replacing old instances with new
+
+    /**
+     * @param $new_instance
+     * @param $old_instance
+     * @return array
+     */
     public function update($new_instance, $old_instance)
     {
-        $instance = array();
-        $instance = $new_instance;
-
-        return $instance;
+        return $new_instance;
     }
 }
diff --git a/includes/wp-mail-api.php b/includes/wp-mail-api.php
@@ -27,14 +27,11 @@
 /**
  * mg_api_last_error is a compound getter/setter for the last error that was
  * encountered during a Mailgun API call.
- *
- * @param string $error OPTIONAL
- *
- * @return    string    Last error that occurred.
- *
+ * @param string|null $error OPTIONAL
+ * @return string|null    Last error that occurred.
  * @since    1.5.0
  */
-function mg_api_last_error($error = null)
+function mg_api_last_error(string $error = null): ?string
 {
     static $last_error;
 
@@ -61,7 +58,11 @@ function mg_api_last_error($error = null)
  * @since 1.5.7
  */
 add_filter('mg_mutate_to_rcpt_vars', 'mg_mutate_to_rcpt_vars_cb');
-function mg_mutate_to_rcpt_vars_cb($to_addrs)
+/**
+ * @param $to_addrs
+ * @return array
+ */
+function mg_mutate_to_rcpt_vars_cb($to_addrs): array
 {
     if (is_string($to_addrs)) {
         $to_addrs = explode(',', $to_addrs);
@@ -79,7 +80,7 @@ function mg_mutate_to_rcpt_vars_cb($to_addrs)
 
             return [
                 'to' => '%recipient%',
-                'rcpt_vars' => json_encode($rcpt_vars),
+                'rcpt_vars' => json_encode($rcpt_vars, JSON_THROW_ON_ERROR),
             ];
         }
     }
@@ -473,7 +474,12 @@ function wp_mail($to, $subject, $message, $headers = '', $attachments = [])
     }
 }
 
-function mg_build_payload_from_body($body, $boundary)
+/**
+ * @param $body
+ * @param $boundary
+ * @return string
+ */
+function mg_build_payload_from_body($body, $boundary): string
 {
     $payload = '';
 
@@ -500,25 +506,29 @@ function mg_build_payload_from_body($body, $boundary)
     return $payload;
 }
 
-function mg_build_attachments_payload($attachments, $boundary)
+/**
+ * @param $attachments
+ * @param $boundary
+ * @return string|null
+ */
+function mg_build_attachments_payload($attachments, $boundary): ?string
 {
     $payload = '';
 
+    if (empty($attachments)) {
+        return null;
+    }
     // If we have attachments, add them to the payload.
-    if (!empty($attachments)) {
-        $i = 0;
-        foreach ($attachments as $attachment) {
-            if (!empty($attachment)) {
-                $payload .= '--' . $boundary;
-                $payload .= "\r\n";
-                $payload .= 'Content-Disposition: form-data; name="attachment[' . $i . ']"; filename="' . basename($attachment) . '"' . "\r\n\r\n";
-                $payload .= file_get_contents($attachment);
-                $payload .= "\r\n";
-                $i++;
-            }
+    $i = 0;
+    foreach ($attachments as $attachment) {
+        if (!empty($attachment)) {
+            $payload .= '--' . $boundary;
+            $payload .= "\r\n";
+            $payload .= 'Content-Disposition: form-data; name="attachment[' . $i . ']"; filename="' . basename($attachment) . '"' . "\r\n\r\n";
+            $payload .= file_get_contents($attachment);
+            $payload .= "\r\n";
+            $i++;
         }
-    } else {
-        return null;
     }
 
     return $payload;

diff --git a/mailgun.php b/mailgun.php
@@ -3,8 +3,8 @@
  * Plugin Name:  Mailgun
  * Plugin URI:   http://wordpress.org/extend/plugins/mailgun/
  * Description:  Mailgun integration for WordPress
- * Version:      1.9.5
- * Tested up to: 6.1
+ * Version:      1.9.6
+ * Tested up to: 6.3.1
  * Author:       Mailgun
  * Author URI:   http://www.mailgun.com/
  * License:      GPLv2 or later

diff --git a/readme.md b/readme.md
@@ -4,9 +4,9 @@ Mailgun for WordPress
 Contributors: mailgun, sivel, lookahead.io, m35dev
 Tags: mailgun, smtp, http, api, mail, email
 Requires at least: 3.3
-Tested up to: 6.1.1
-Stable tag: 1.9.5
-Requires PHP: 5.6
+Tested up to: 6.3.1
+Stable tag: 1.9.6
+Requires PHP: 7.4
 License: GPLv2 or later
 
 Easily send email from your WordPress site through Mailgun using the HTTP API or SMTP.
@@ -133,6 +133,11 @@ MAILGUN_TRACK_OPENS  Type: string Choices: 'yes' or 'no'
 
 == Changelog ==
 
+= 1.9.6 (2023-09-10): =
+- Added typehints to methods
+- Added code for making plugin WP VIP GO compatible for the `From mail`
+- Added Toastr for sending nice message instead of using alerts
+
 = 1.9.5 (2023-06-20): =
 - Fix bug with sending emails