Initial commit

wp-content/plugins/fluent-smtp/app/Hooks/Handlers/ActionsRegistrar.php

@@ -0,0 +1,150 @@
+<?php
+
+namespace FluentMail\App\Hooks\Handlers;
+
+use FluentMail\Includes\Core\Application;
+use FluentMail\App\Hooks\Handlers\AdminMenuHandler;
+use FluentMail\App\Hooks\Handlers\SchedulerHandler;
+use FluentMail\App\Hooks\Handlers\InitializeSiteHandler;
+use WP_REST_Request;
+
+class ActionsRegistrar
+{
+    /**
+     * Application instance.
+     *
+     * @var Application
+     */
+    protected $app;
+
+    /**
+     * Constructor.
+     *
+     * @param Application $app
+     */
+    public function __construct(Application $app)
+    {
+        $this->app = $app;
+    }
+
+    /**
+     * Alternative static constructor.
+     *
+     * @param Application $app
+     * @return static
+     */
+    public static function init(Application $app)
+    {
+        $instance = new self($app);
+        $instance->registerHooks();
+        return $instance;
+    }
+
+    /**
+     * Register all core hooks and REST routes.
+     *
+     * @return void
+     */
+    public function registerHooks()
+    {
+        $this->registerAdminMenu();
+        $this->registerScheduler();
+        $this->registerSiteInitialization();
+        $this->registerCustomActions();
+        $this->registerRestRoutes();
+    }
+
+    /**
+     * Register admin menu and notices.
+     *
+     * @return void
+     */
+    protected function registerAdminMenu()
+    {
+        $adminMenuHandler = new AdminMenuHandler($this->app);
+        $adminMenuHandler->addFluentMailMenu();
+
+        $this->app->addAction('admin_notices', 'AdminMenuHandler@maybeAdminNotice');
+    }
+
+    /**
+     * Register background scheduler hooks.
+     *
+     * @return void
+     */
+    protected function registerScheduler()
+    {
+        (new SchedulerHandler)->register();
+    }
+
+    /**
+     * Register site-level initialization logic.
+     *
+     * @return void
+     */
+    protected function registerSiteInitialization()
+    {
+        (new InitializeSiteHandler)->addHandler();
+    }
+
+    /**
+     * Register custom application actions.
+     *
+     * @return void
+     */
+    protected function registerCustomActions()
+    {
+        $this->app->addCustomAction(
+            'handle_exception', 'ExceptionHandler@handle'
+        );
+    }
+
+    /**
+     * Register REST API routes.
+     *
+     * @return void
+     */
+    protected function registerRestRoutes()
+    {
+        $this->app->addAction('rest_api_init', function () {
+            register_rest_route('fluent-smtp', '/outlook_callback/', [
+                'methods'             => 'GET',
+                'callback'            => [$this, 'handleOutlookCallback'],
+                'permission_callback' => [$this, 'verifyOutlookCallbackState'],
+            ]);
+        });
+    }
+
+    /**
+     * Handle the Outlook OAuth callback.
+     *
+     * @param WP_REST_Request $request
+     * @return void
+     */
+    public function handleOutlookCallback(WP_REST_Request $request)
+    {
+        $code = $request->get_param('code');
+
+        $output = $this->app->view->make('admin.html_code', [
+            'title' => 'Your Access Code',
+            'body'  => sprintf(
+                '<p>Copy the following code and paste in the fluentSMTP settings</p><textarea readonly>%s</textarea>',
+                sanitize_textarea_field($code)
+            ),
+        ]);
+
+        wp_die($output, 'Access Code');
+    }
+
+    /**
+     * Verify the 'state' parameter in the OAuth callback.
+     *
+     * @return bool
+     */
+    public function verifyOutlookCallbackState()
+    {
+        $state = $_REQUEST['state'] ?? null;
+
+        return $state === get_option('_fluentmail_last_generated_state');
+    }
+}

wp-content/plugins/fluent-smtp/app/Hooks/Handlers/AdminMenuHandler.php

@@ -0,0 +1,456 @@
+<?php
+
+namespace FluentMail\App\Hooks\Handlers;
+
+use FluentMail\App\Models\Logger;
+use FluentMail\App\Models\Settings;
+use FluentMail\App\Services\Converter;
+use FluentMail\App\Services\NotificationHelper;
+use FluentMail\Includes\Core\Application;
+use FluentMail\App\Services\Mailer\Manager;
+use FluentMail\Includes\Support\Arr;
+use FluentMail\App\Services\TransStrings;
+
+class AdminMenuHandler
+{
+    protected $app = null;
+
+    public function __construct(Application $application)
+    {
+        $this->app = $application;
+    }
+
+    public function addFluentMailMenu()
+    {
+        add_action('admin_menu', array($this, 'addMenu'));
+
+        if (isset($_GET['page']) && $_GET['page'] == 'fluent-mail' && is_admin()) {
+            add_action('admin_enqueue_scripts', array($this, 'enqueueAssets'));
+
+            if (isset($_REQUEST['sub_action']) && $_REQUEST['sub_action'] == 'slack_success') {
+                add_action('admin_init', function () {
+                    $nonce = Arr::get($_REQUEST, '_slacK_nonce');
+                    if (!wp_verify_nonce($nonce, 'fluent_smtp_slack_register_site')) {
+                        wp_redirect(admin_url('options-general.php?page=fluent-mail&slack_security_failed=1#/notification-settings'));
+                        die();
+                    }
+
+                    $settings = (new Settings())->notificationSettings();
+                    $token = Arr::get($_REQUEST, 'site_token');
+
+                    if ($token && $token == Arr::get($settings, 'slack.token')) {
+                        NotificationHelper::updateChannelSettings('slack', [
+                            'status'      => 'yes',
+                            'token'       => sanitize_text_field($token),
+                            'slack_team'  => sanitize_text_field(Arr::get($_REQUEST, 'slack_team')),
+                            'webhook_url' => sanitize_url(Arr::get($_REQUEST, 'slack_webhook'))
+                        ]);
+                    }
+
+                    wp_redirect(admin_url('options-general.php?page=fluent-mail#/notification-settings'));
+                    die();
+                });
+            }
+
+        }
+
+        add_action('admin_bar_menu', array($this, 'addSimulationBar'), 999);
+
+        add_action('admin_init', array($this, 'initAdminWidget'));
+
+        add_action('install_plugins_table_header', function () {
+            if (!isset($_REQUEST['s']) || empty($_REQUEST['s']) || empty($_REQUEST['tab']) || $_REQUEST['tab'] != 'search') {
+                return;
+            }
+
+            $search = str_replace(['%20', '_', '-'], ' ', $_REQUEST['s']);
+            $search = trim(strtolower(sanitize_text_field($search)));
+
+            $searchTerms = ['wp-mail-smtp', 'wp mail', 'wp mail smtp', 'post mailer', 'wp smtp', 'smtp mail', 'smtp', 'post smtp', 'easy smtp', 'easy wp smtp', 'smtp mailer', 'gmail smtp', 'offload ses'];
+
+            if (!strpos($search, 'smtp')) {
+                if (!in_array($search, $searchTerms)) {
+                    return;
+                }
+            }
+            ?>
+            <div
+                style="background-color: #fff;border: 1px solid #dcdcde;box-sizing: border-box;padding: 20px;margin: 15px 0;"
+                class="fluent_smtp_box">
+                <h3 style="margin: 0;"><?php __('For SMTP, you already have FluentSMTP Installed', 'fluent-smtp'); ?></h3>
+                <p><?php __('You seem to be looking for an SMTP plugin, but there\'s no need for another one — FluentSMTP is already installed on your site. FluentSMTP is a comprehensive, free, and open-source plugin with full features available without any upsell', 'fluent-smtp'); ?>
+                    (<a href="https://fluentsmtp.com/why-we-built-fluentsmtp-plugin/"><?php __('learn why it\'s free', 'fluent-smtp'); ?></a>)<?php __('. It\'s compatible with various SMTP services, including Amazon SES, SendGrid, MailGun, ElasticEmail, SendInBlue, Google, Microsoft, and others, providing you with a wide range of options for your email needs.', 'fluent-smtp'); ?>
+                </p><a href="<?php echo esc_url(admin_url('options-general.php?page=fluent-mail#/')); ?>"
+                       class="wp-core-ui button button-primary"><?php __('Go To FluentSMTP Settings', 'fluent-smtp'); ?></a>
+                <p style="font-size: 80%; margin: 15px 0 0;"><?php __('This notice is from FluentSMTP plugin to prevent plugin
+                    conflict.', 'fluent-smtp') ?></p>
+            </div>
+            <?php
+        }, 1);
+
+        add_action('wp_ajax_fluent_smtp_get_dashboard_html', function () {
+            // This widget should be displayed for certain high-level users only.
+            if (!current_user_can('manage_options') || apply_filters('fluent_mail_disable_dashboard_widget', false)) {
+                wp_send_json([
+                    'html' => __('You do not have permission to see this data', 'fluent-smtp')
+                ]);
+            }
+
+            wp_send_json([
+                'html' => $this->getDashboardWidgetHtml()
+            ]);
+        });
+
+    }
+
+    public function addMenu()
+    {
+        $title = $this->app->applyCustomFilters('admin-menu-title', __('FluentSMTP', 'fluent-smtp'));
+
+        add_submenu_page(
+            'options-general.php',
+            $title,
+            $title,
+            'manage_options',
+            'fluent-mail',
+            [$this, 'renderApp'],
+            16
+        );
+
+    }
+
+    public function renderApp()
+    {
+        $dailyTaskHookName = 'fluentmail_do_daily_scheduled_tasks';
+
+        if (!wp_next_scheduled($dailyTaskHookName)) {
+            wp_schedule_event(time(), 'daily', $dailyTaskHookName);
+        }
+
+        $this->app->view->render('admin.menu');
+    }
+
+    public function enqueueAssets()
+    {
+        add_action('wp_print_scripts', function () {
+            $isSkip = apply_filters('fluentsmtp_skip_no_conflict', false);
+
+            if ($isSkip) {
+                return;
+            }
+
+            global $wp_scripts;
+            if (!$wp_scripts) {
+                return;
+            }
+
+            $themeUrl = content_url('themes');
+            $pluginUrl = plugins_url();
+            foreach ($wp_scripts->queue as $script) {
+                if (empty($wp_scripts->registered[$script]) || empty($wp_scripts->registered[$script]->src)) {
+                    continue;
+                }
+
+                $src = $wp_scripts->registered[$script]->src;
+                $isMatched = strpos($src, $pluginUrl) !== false && !strpos($src, 'fluent-smtp') !== false;
+                if (!$isMatched) {
+                    continue;
+                }
+
+                $isMatched = strpos($src, $themeUrl) !== false;
+
+                if ($isMatched) {
+                    wp_dequeue_script($wp_scripts->registered[$script]->handle);
+                }
+            }
+
+        }, 1);
+
+        wp_enqueue_script(
+            'fluent_mail_admin_app_boot',
+            fluentMailMix('admin/js/boot.js'),
+            ['jquery'],
+            FLUENTMAIL_PLUGIN_VERSION
+        );
+
+        wp_enqueue_script('fluentmail-chartjs', fluentMailMix('libs/chartjs/Chart.min.js'), [], FLUENTMAIL_PLUGIN_VERSION);
+        wp_enqueue_script('fluentmail-vue-chartjs', fluentMailMix('libs/chartjs/vue-chartjs.min.js'), [], FLUENTMAIL_PLUGIN_VERSION);
+        wp_enqueue_script('dompurify', fluentMailMix('libs/purify/purify.min.js'), [], '2.4.3');
+
+        wp_enqueue_style(
+            'fluent_mail_admin_app', fluentMailMix('admin/css/fluent-mail-admin.css'), [], FLUENTMAIL_PLUGIN_VERSION
+        );
+
+        $user = get_user_by('ID', get_current_user_id());
+
+        $disable_recommendation = wp_is_file_mod_allowed('install_plugins');
+
+        $settings = $this->getMailerSettings();
+
+        $recommendedSettings = false;
+        if (empty($settings['connections'])) {
+            $recommendedSettings = (new Converter())->getSuggestedConnection();
+        }
+
+        $displayName = trim($user->first_name . ' ' . $user->last_name);
+        if (!$displayName) {
+            $displayName = $user->display_name;
+        }
+
+        wp_localize_script('fluent_mail_admin_app_boot', 'FluentMailAdmin', [
+            'slug'                   => FLUENTMAIL,
+            'brand_logo'             => esc_url(fluentMailMix('images/logo.svg')),
+            'nonce'                  => wp_create_nonce(FLUENTMAIL),
+            'settings'               => $settings,
+            'images_url'             => esc_url(fluentMailMix('images/')),
+            'has_fluentcrm'          => defined('FLUENTCRM'),
+            'has_fluentform'         => defined('FLUENTFORM'),
+            'user_email'             => $user->user_email,
+            'user_display_name'      => $displayName,
+            'require_optin'          => $this->isRequireOptin(),
+            'has_ninja_tables'       => defined('NINJA_TABLES_VERSION'),
+            'disable_recommendation' => apply_filters('fluentmail_disable_recommendation', false),
+            'disable_installation'   => $disable_recommendation,
+            'plugin_url'             => 'https://fluentsmtp.com/?utm_source=wp&utm_medium=install&utm_campaign=dashboard',
+            'trans'                  => $this->getTrans(),
+            'recommended'            => $recommendedSettings,
+            'is_disabled_defined'    => defined('FLUENTMAIL_SIMULATE_EMAILS') && FLUENTMAIL_SIMULATE_EMAILS
+        ]);
+
+        do_action('fluent_mail_loading_app');
+
+        wp_enqueue_script(
+            'fluent_mail_admin_app',
+            fluentMailMix('admin/js/fluent-mail-admin-app.js'),
+            ['fluent_mail_admin_app_boot'],
+            FLUENTMAIL_PLUGIN_VERSION,
+            true
+        );
+
+        add_filter('admin_footer_text', function ($text) {
+            return sprintf(
+                __('%1$s is a free plugin & it will be always free %2$s. %3$s', 'fluent-smtp'),
+                '<b>FluentSMTP</b>',
+                '<a href="https://fluentsmtp.com/why-we-built-fluentsmtp-plugin/" target="_blank" rel="noopener noreferrer">'. esc_html__('(Learn why it\'s free)', 'fluent-smtp') .'</a>',
+                '<a href="https://wordpress.org/support/plugin/fluent-smtp/reviews/?filter=5" target="_blank" rel="noopener noreferrer">'. esc_html__('Write a review ★★★★★', 'fluent-smtp') .'</a>'
+            );
+        });
+    }
+
+    protected function getMailerSettings()
+    {
+        $settings = $this->app->make(Manager::class)->getMailerConfigAndSettings(true);
+
+        if ($settings['mappings'] && $settings['connections']) {
+            $validMappings = array_keys(Arr::get($settings, 'connections', []));
+
+            $settings['mappings'] = array_filter($settings['mappings'], function ($key) use ($validMappings) {
+                return in_array($key, $validMappings);
+            });
+        }
+
+        $settings['providers']['outlook']['callback_url'] = rest_url('fluent-smtp/outlook_callback');
+
+        $settings = array_merge(
+            $settings,
+            [
+                'user_email' => wp_get_current_user()->user_email
+            ]
+        );
+
+        return $settings;
+    }
+
+    public function maybeAdminNotice()
+    {
+        if (!current_user_can('manage_options')) {
+            return;
+        }
+
+        $connections = $this->app->make(Manager::class)->getConfig('connections');
+
+        global $wp_version;
+
+        $requireUpdate = version_compare($wp_version, '5.5', '<');
+
+        if ($requireUpdate) { ?>
+            <div class="notice notice-warning">
+                <p>
+                    <?php echo esc_html(sprintf(__('WordPress version 5.5 or greater is required for FluentSMTP. You are using version %s currently. Please update your WordPress Core to use FluentSMTP Plugin.', 'fluent-smtp'), $wp_version)); ?>
+                </p>
+            </div>
+        <?php } else if (empty($connections)) {
+            ?>
+            <div class="notice notice-warning">
+                <p>
+                    <?php esc_html_e('FluentSMTP needs to be configured for it to work.', 'fluent-smtp'); ?>
+                </p>
+                <p>
+                    <a href="<?php echo esc_url(admin_url('options-general.php?page=fluent-mail#/')); ?>"
+                       class="button button-primary">
+                        <?php esc_html_e('Configure FluentSMTP', 'fluent-smtp'); ?>
+                    </a>
+                </p>
+            </div>
+            <?php
+        }
+    }
+
+    public function addSimulationBar($adminBar)
+    {
+        if (!current_user_can('manage_options')) {
+            return;
+        }
+
+        $misc = $this->app->make(Manager::class)->getConfig('misc');
+
+        if ((!empty($misc['simulate_emails']) && $misc['simulate_emails'] == 'yes') || (defined('FLUENTMAIL_SIMULATE_EMAILS') && FLUENTMAIL_SIMULATE_EMAILS)) {
+            $args = [
+                'parent' => 'top-secondary',
+                'id'     => 'fluentsmtp_simulated',
+                'title'  => __('Email Disabled', 'fluent-smtp'),
+                'href'   => admin_url('options-general.php?page=fluent-mail#/connections'),
+                'meta'   => false
+            ];
+
+            echo '<style>li#wp-admin-bar-fluentsmtp_simulated a {background: red; color: white;}</style>';
+
+            $adminBar->add_node($args);
+        }
+    }
+
+    public function isRequireOptin()
+    {
+        $opted = get_option('_fluentsmtp_sub_update');
+        if ($opted) {
+            return 'no';
+        }
+        // check if dismissed
+        $dismissedStamp = get_option('_fluentsmtp_dismissed_timestamp');
+        if ($dismissedStamp && (time() - $dismissedStamp) < 30 * 24 * 60 * 60) {
+            return 'no';
+        }
+
+        return 'yes';
+    }
+
+    public function initAdminWidget()
+    {
+        // This widget should be displayed for certain high-level users only.
+        if (!current_user_can('manage_options') || apply_filters('fluent_mail_disable_dashboard_widget', false)) {
+            return;
+        }
+
+        add_action('wp_dashboard_setup', function () {
+            $widget_key = 'fluentsmtp_reports_widget';
+
+            wp_add_dashboard_widget(
+                $widget_key,
+                esc_html__('Fluent SMTP', 'fluent-smtp'),
+                [$this, 'dashWidgetContent']
+            );
+
+        });
+
+
+    }
+
+    public function dashWidgetContent()
+    {
+        ?>
+        <style type="text/css">
+            td.fstmp_failed {
+                color: red;
+                font-weight: bold;
+            }
+        </style>
+        <div id="fsmtp_dashboard_widget_html" class="fsmtp_dash_wrapper">
+            <h3 style="min-height: 170px;"><?php esc_html_e('Loading data...', 'fluent-smtp'); ?></h3>
+        </div>
+        <?php
+        add_action('admin_footer', function () {
+            ?>
+            <script type="application/javascript">
+                document.addEventListener('DOMContentLoaded', function () {
+                    // send an ajax request to ajax url with raw javascript
+                    var xhr = new XMLHttpRequest();
+                    xhr.open('POST', '<?php echo esc_url(admin_url('admin-ajax.php?action=fluent_smtp_get_dashboard_html')); ?>', true);
+                    xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
+                    xhr.onreadystatechange = function () {
+                        if (xhr.readyState === 4 && xhr.status === 200) {
+                            var response = JSON.parse(xhr.responseText);
+                            if (response && response.html) {
+                                document.getElementById('fsmtp_dashboard_widget_html').innerHTML = response.html;
+                            } else {
+                                document.getElementById('fsmtp_dashboard_widget_html').innerHTML = '<h3>Failed to load FluentSMTP Reports</h3>';
+                            }
+                        }
+                    };
+
+                    xhr.send();
+                });
+            </script>
+            <?php
+        });
+    }
+
+    protected function getDashboardWidgetHtml()
+    {
+        $stats = [];
+        $logModel = new Logger();
+        $currentTimeStamp = current_time('timestamp');
+        $startToday = gmdate('Y-m-d 00:00:01', $currentTimeStamp);
+
+        $allTime = $logModel->getStats();
+
+        $stats['today'] = [
+            'title'  => __('Today', 'fluent-smtp'),
+            'sent'   => ($allTime['sent']) ? $logModel->getTotalCountStat('sent', $startToday) : 0,
+            'failed' => ($allTime['failed']) ? $logModel->getTotalCountStat('failed', $startToday) : 0
+        ];
+
+        $lastWeek = gmdate('Y-m-d 00:00:01', strtotime('-7 days'));
+        $stats['week'] = [
+            'title'  => __('Last 7 days', 'fluent-smtp'),
+            'sent'   => ($allTime['sent']) ? $logModel->getTotalCountStat('sent', $lastWeek) : 0,
+            'failed' => ($allTime['failed']) ? $logModel->getTotalCountStat('failed', $lastWeek) : 0,
+        ];
+
+        $stats['all_time'] = [
+            'title'  => __('All', 'fluent-smtp'),
+            'sent'   => $allTime['sent'],
+            'failed' => $allTime['failed'],
+        ];
+        ob_start();
+        ?>
+        <table class="fsmtp_dash_table wp-list-table widefat fixed striped">
+            <thead>
+            <tr>
+                <th><?php esc_html_e('Date', 'fluent-smtp'); ?></th>
+                <th><?php esc_html_e('Sent', 'fluent-smtp'); ?></th>
+                <th><?php esc_html_e('Failed', 'fluent-smtp'); ?></th>
+            </tr>
+            </thead>
+            <tbody>
+            <?php foreach ($stats as $stat): ?>
+                <tr>
+                    <td><?php echo $stat['title']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?></td>
+                    <td><?php echo $stat['sent']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?></td>
+                    <td class="<?php echo ($stat['failed']) ? 'fstmp_failed' : ''; ?>"><?php echo $stat['failed']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?></td>
+                </tr>
+            <?php endforeach; ?>
+            </tbody>
+        </table>
+        <a style="text-decoration: none; padding-top: 10px; display: block"
+           href="<?php echo esc_url(admin_url('options-general.php?page=fluent-mail#/')); ?>"
+           class=""><?php esc_html_e('View All', 'fluent-smtp'); ?></a>
+        <?php
+
+        return ob_get_clean();
+    }
+
+    public function getTrans()
+    {
+        return TransStrings::getStrings();
+    }
+}

wp-content/plugins/fluent-smtp/app/Hooks/Handlers/ExceptionHandler.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace FluentMail\App\Hooks\Handlers;
+
+class ExceptionHandler
+{
+    protected $handlers = [
+        'FluentMail\Includes\Support\ForbiddenException'   => 'handleForbiddenException',
+        'FluentMail\Includes\Support\ValidationException'  => 'handleValidationException'
+    ];
+
+    public function handle($e)
+    {
+        foreach ($this->handlers as $key => $value) {
+            if ($e instanceof $key) {
+                return $this->{$value}($e);
+            }
+        }
+    }
+
+    public function handleForbiddenException($e)
+    {
+        wp_send_json_error([
+            'message' => $e->getMessage()
+        ], $e->getCode() ?: 403);
+    }
+
+    public function handleValidationException($e)
+    {
+        wp_send_json_error([
+            'message' => $e->getMessage(),
+            'errors'  => $e->errors()
+        ], $e->getCode() ?: 422);
+    }
+}

wp-content/plugins/fluent-smtp/app/Hooks/Handlers/InitializeSiteHandler.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace FluentMail\App\Hooks\Handlers;
+
+class InitializeSiteHandler
+{
+    public function addHandler()
+    {
+        add_action('wp_initialize_site', array($this, 'handle'));
+    }
+
+    public static function handle( $new_site )
+    {
+        require_once(FLUENTMAIL_PLUGIN_PATH . 'database/migrations/EmailLogs.php');
+        
+        $blog_id = $new_site->blog_id;
+        switch_to_blog((int)$blog_id);
+        \FluentMailMigrations\EmailLogs::migrate();
+        restore_current_blog();
+    }
+}

wp-content/plugins/fluent-smtp/app/Hooks/Handlers/ProviderValidator.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace FluentMail\App\Hooks\Handlers;
+
+class ProviderValidator
+{
+    public function handle($provider, $errors = [])
+    {
+        if ($validator = $this->getProviderValidator($provider, $errors)) {
+            return $validator->validate();
+        }
+        
+        return $errors;
+    }
+
+    protected function getProviderValidator($provider, $errors)
+    {
+        $key = $provider['provider'];
+
+        $path = FluentMail('path.app') . 'Services/Mailer/Providers/' . $key;
+
+        $file = $path . '/' . 'Validator.php';
+
+
+        if (file_exists($file)) {
+            $ns = 'FluentMail\App\Services\Mailer\Providers\\' . $key;
+
+            $class = $ns . '\Validator';
+
+            if (class_exists($class)) {
+                return new $class($provider, $errors);
+            }
+        }
+    }
+}

wp-content/plugins/fluent-smtp/app/Hooks/Handlers/SchedulerHandler.php

@@ -0,0 +1,356 @@
+<?php
+
+namespace FluentMail\App\Hooks\Handlers;
+
+use FluentMail\App\Models\Logger;
+use FluentMail\App\Models\Settings;
+use FluentMail\App\Services\NotificationHelper;
+use FluentMail\App\Services\Notification\Manager as NotificationManager;
+use FluentMail\Includes\Support\Arr;
+
+class SchedulerHandler
+{
+    protected $dailyActionName = 'fluentmail_do_daily_scheduled_tasks';
+
+    public function register()
+    {
+        add_action($this->dailyActionName, array($this, 'handleScheduledJobs'));
+        add_filter('fluentmail_email_sending_failed', array($this, 'maybeHandleFallbackConnection'), 10, 4);
+
+        add_action('fluentsmtp_renew_gmail_token', array($this, 'renewGmailToken'));
+
+        add_action('fluentmail_email_sending_failed_no_fallback', array($this, 'maybeSendNotification'), 10, 3);
+    }
+
+    public function handleScheduledJobs()
+    {
+        $this->deleteOldEmails();
+        $this->sendDailyDigest();
+    }
+
+    private function deleteOldEmails()
+    {
+        $settings = fluentMailGetSettings();
+        $logSaveDays = intval(Arr::get($settings, 'misc.log_saved_interval_days'));
+        if ($logSaveDays) {
+            (new \FluentMail\App\Models\Logger())->deleteLogsOlderThan($logSaveDays);
+        }
+    }
+
+    public function sendDailyDigest()
+    {
+        $settings = (new Settings())->notificationSettings();
+
+        if ($settings['enabled'] != 'yes' || empty($settings['notify_days']) || empty($settings['notify_email'])) {
+            return;
+        }
+
+        $currentDay = gmdate('D');
+        if (!in_array($currentDay, $settings['notify_days'])) {
+            return;
+        }
+
+        $sendTo = $settings['notify_email'];
+        $sendTo = str_replace(['{site_admin}', '{admin_email}'], get_option('admin_email'), $sendTo);
+
+        $sendToArray = explode(',', $sendTo);
+
+        $sendToArray = array_filter($sendToArray, function ($email) {
+            return is_email($email);
+        });
+
+        if (!$sendToArray) {
+            return false;
+        }
+
+        // we can send a summary email
+        $lastDigestSent = get_option('_fluentmail_last_email_digest');
+        if ($lastDigestSent) {
+            if ((time() - strtotime($lastDigestSent)) < 72000) {
+                return false; // we don't want to send another email if sent time within 20 hours
+            }
+        } else {
+            $lastDigestSent = gmdate('Y-m-d', strtotime('-7 days'));
+        }
+
+        // Let's create the stats
+        $startDate = gmdate('Y-m-d 00:00:01', (strtotime($lastDigestSent) - 86400));
+        $endDate = gmdate('Y-m-d 23:59:59', strtotime('-1 days'));
+
+        $reportingDays = floor((strtotime($endDate) - strtotime($startDate)) / 86400);
+
+        $loggerModel = new Logger();
+        $sentCount = $loggerModel->getTotalCountStat('sent', $startDate, $endDate);
+
+        $sentStats = [
+            'total'           => $sentCount,
+            'subjects'        => [],
+            'unique_subjects' => 0
+        ];
+        if ($sentCount) {
+            $sentStats['unique_subjects'] = $loggerModel->getSubjectCountStat('sent', $startDate, $endDate);
+            $sentStats['subjects'] = $loggerModel->getSubjectStat('sent', $startDate, $endDate, 10);
+        }
+
+        $failedCount = $loggerModel->getTotalCountStat('failed', $startDate, $endDate);
+        $failedStats = [
+            'total'           => $sentCount,
+            'subjects'        => [],
+            'unique_subjects' => 0
+        ];
+        if ($failedCount) {
+            $failedStats['unique_subjects'] = $loggerModel->getSubjectCountStat('failed', $startDate, $endDate);
+            $failedStats['subjects'] = $loggerModel->getSubjectStat('failed', $startDate, $endDate);
+        }
+
+        $sentSubTitle = sprintf(
+            __('Showing %1$s of %2$s different subject lines sent in the past %3$s', 'fluent-smtp'),
+            number_format_i18n(count($sentStats['subjects'])),
+            number_format_i18n($sentStats['unique_subjects']),
+            ($reportingDays < 2) ? 'day' : $reportingDays . ' days'
+        );
+
+        $failedSubTitle = sprintf(
+            __('Showing %1$s of %2$s different subject lines failed in the past %3$s', 'fluent-smtp'),
+            number_format_i18n(count($failedStats['subjects'])),
+            number_format_i18n($failedStats['unique_subjects']),
+            ($reportingDays < 2) ? 'day' : $reportingDays . ' days'
+        );
+
+        $sentTitle = __('Emails Sent', 'fluent-smtp');
+        if ($sentCount) {
+            $sentTitle .= ' <span style="font-size: 12px; vertical-align: middle;">(' . number_format_i18n($sentCount) . ')</span>';
+        }
+        $failedTitle = __('Email Failures', 'fluent-smtp');
+        if ($failedCount) {
+            $failedTitle .= ' <span style="font-size: 12px; vertical-align: middle;">(' . number_format_i18n($failedCount) . ')</span>';
+        }
+
+        $reportingDate = gmdate(get_option('date_format'), strtotime($startDate));
+
+        $data = [
+            'sent'        => [
+                'total'         => $sentCount,
+                'title'         => $sentTitle,
+                'subtitle'      => $sentSubTitle,
+                'subject_items' => $sentStats['subjects']
+            ],
+            'fail'        => [
+                'total'         => $failedCount,
+                'title'         => $failedTitle,
+                'subtitle'      => $failedSubTitle,
+                'subject_items' => $failedStats['subjects']
+            ],
+            'date_range'  => $reportingDate,
+            'domain_name' => $this->getDomainName()
+        ];
+
+        $emailBody = (string)fluentMail('view')->make('admin.digest_email', $data);
+        $emailSubject = $reportingDate . ' email sending stats for ' . $this->getDomainName();
+
+        $headers = array('Content-Type: text/html; charset=UTF-8');
+
+        update_option('_fluentmail_last_email_digest', gmdate('Y-m-d H:i:s'));
+
+        return wp_mail($sendToArray, $emailSubject, $emailBody, $headers);
+    }
+
+    private function getDomainName()
+    {
+        $parts = parse_url(site_url());
+        $url = $parts['host'] . (isset($parts['path']) ? $parts['path'] : '');
+        return untrailingslashit($url);
+    }
+
+    public function maybeHandleFallbackConnection($status, $logId, $handler, $data = [])
+    {
+        if (defined('FLUENTMAIL_EMAIL_TESTING')) {
+            return false;
+        }
+
+        $settings = (new \FluentMail\App\Models\Settings())->getSettings();
+
+        $fallbackConnectionId = \FluentMail\Includes\Support\Arr::get($settings, 'misc.fallback_connection');
+
+        if (!$fallbackConnectionId) {
+            do_action('fluentmail_email_sending_failed_no_fallback', $logId, $handler, $data);
+            return false;
+        }
+
+        $fallbackConnection = \FluentMail\Includes\Support\Arr::get($settings, 'connections.' . $fallbackConnectionId);
+
+        if (!$fallbackConnection) {
+            do_action('fluentmail_email_sending_failed_no_fallback', $logId, $handler, $data);
+            return false;
+        }
+
+        $phpMailer = $handler->getPhpMailer();
+
+        $fallbackSettings = $fallbackConnection['provider_settings'];
+        $phpMailer->setFrom($fallbackSettings['sender_email'], $phpMailer->FromName);
+
+        // Trap the fluentSMTPMail mailer here
+        $phpMailer = new \FluentMail\App\Services\Mailer\FluentPHPMailer($phpMailer);
+        return $phpMailer->sendViaFallback($logId);
+    }
+
+    public function renewGmailToken()
+    {
+        $settings = fluentMailGetSettings();
+
+        if (!$settings) {
+            return;
+        }
+
+        $connections = Arr::get($settings, 'connections', []);
+
+        foreach ($connections as $connection) {
+            if (Arr::get($connection, 'provider_settings.provider') != 'gmail') {
+                continue;
+            }
+            $providerSettings = $connection['provider_settings'];
+            if (($providerSettings['expire_stamp'] - 480) < time() && !empty($providerSettings['refresh_token'])) {
+                $this->callGmailApiForNewToken($connection['provider_settings']);
+            }
+        }
+    }
+
+    public function callGmailApiForNewToken($settings)
+    {
+        if (Arr::get($settings, 'key_store') == 'wp_config') {
+            $settings['client_id'] = defined('FLUENTMAIL_GMAIL_CLIENT_ID') ? FLUENTMAIL_GMAIL_CLIENT_ID : '';
+            $settings['client_secret'] = defined('FLUENTMAIL_GMAIL_CLIENT_SECRET') ? FLUENTMAIL_GMAIL_CLIENT_SECRET : '';
+        }
+
+        if (!class_exists('\FluentSmtpLib\Google\Client')) {
+            require_once FLUENTMAIL_PLUGIN_PATH . 'includes/libs/google-api-client/build/vendor/autoload.php';
+        }
+
+        try {
+            $client = new \FluentSmtpLib\Google\Client();
+            $client->setClientId($settings['client_id']);
+            $client->setClientSecret($settings['client_secret']);
+            $client->addScope("https://www.googleapis.com/auth/gmail.compose");
+            $client->setAccessType('offline');
+            $client->setApprovalPrompt('force');
+
+            $tokens = [
+                'access_token'  => $settings['access_token'],
+                'refresh_token' => $settings['refresh_token'],
+                'expires_in'    => $settings['expire_stamp'] - time()
+            ];
+
+            $client->setAccessToken($tokens);
+
+            $newTokens = $client->refreshToken($tokens['refresh_token']);
+            $result = $this->saveNewGmailTokens($settings, $newTokens);
+
+            if (!$result) {
+                return new \WP_Error('api_error', __('Failed to renew the token', 'fluent-smtp'));
+            }
+
+            return true;
+        } catch (\Exception $exception) {
+            return new \WP_Error('api_error', $exception->getMessage());
+        }
+    }
+
+
+    public function maybeSendNotification($rowId, $handler, $logData = [])
+    {
+        $lastNotificationSent = get_option('_fsmtp_last_notification_sent');
+        if ($lastNotificationSent && (time() - $lastNotificationSent) < 60) {
+            return false;
+        }
+
+        update_option('_fsmtp_last_notification_sent', time());
+
+        $notificationManager = new NotificationManager();
+        $channels = $notificationManager->getActiveChannels();
+
+        if (!$channels) {
+            return false;
+        }
+
+        foreach ($channels as $channel) {
+            $driver = $channel['driver'];
+            $channelSettings = Arr::get($channel, 'settings', []);
+
+            if ($driver == 'telegram') {
+                $data = [
+                    'token_id'      => Arr::get($channelSettings, 'token'),
+                    'provider'      => $handler->getSetting('provider'),
+                    'error_message' => $this->getErrorMessageFromResponse(maybe_unserialize(Arr::get($logData, 'response')))
+                ];
+
+                NotificationHelper::sendFailedNotificationTele($data);
+                continue;
+            }
+
+            if ($driver == 'slack') {
+                NotificationHelper::sendSlackMessage(NotificationHelper::formatSlackMessageBlock($handler, $logData), Arr::get($channelSettings, 'webhook_url'), false);
+                continue;
+            }
+
+            if ($driver == 'discord') {
+                NotificationHelper::sendDiscordMessage(NotificationHelper::formatDiscordMessageBlock($handler, $logData), Arr::get($channelSettings, 'webhook_url'), false);
+                continue;
+            }
+
+            if ($driver == 'pushover') {
+                NotificationHelper::sendPushoverMessage(
+                    NotificationHelper::formatPushoverMessage($handler, $logData),
+                    Arr::get($channelSettings, 'api_token'),
+                    Arr::get($channelSettings, 'user_key'),
+                    false,
+                    1 // High priority for failed emails
+                );
+                continue;
+            }
+        }
+
+        return true;
+    }
+
+    private function saveNewGmailTokens($existingData, $tokens)
+    {
+        if (empty($tokens['access_token']) || empty($tokens['refresh_token'])) {
+            return false;
+        }
+
+        $senderEmail = $existingData['sender_email'];
+
+        $existingData['access_token'] = $tokens['access_token'];
+        $existingData['refresh_token'] = $tokens['refresh_token'];
+        $existingData['expire_stamp'] = $tokens['expires_in'] + time();
+        $existingData['expires_in'] = $tokens['expires_in'];
+
+        (new Settings())->updateConnection($senderEmail, $existingData);
+        fluentMailGetProvider($senderEmail, true); // we are clearing the static cache here
+        wp_schedule_single_event($existingData['expire_stamp'] - 360, 'fluentsmtp_renew_gmail_token');
+        return true;
+    }
+
+    private function getErrorMessageFromResponse($response)
+    {
+        if (!$response || !is_array($response)) {
+            return '';
+        }
+
+        if (!empty($response['fallback_response']['message'])) {
+            $message = $response['fallback_response']['message'];
+        } else {
+            $message = Arr::get($response, 'message');
+        }
+
+        if (!$message) {
+            return '';
+        }
+
+        if (!is_string($message)) {
+            $message = json_encode($message);
+        }
+
+        return $message;
+    }
+}

wp-content/plugins/fluent-smtp/app/Hooks/actions.php

@@ -0,0 +1,8 @@
+<?php
+/*
+ * @var $app FluentMail\Includes\Core\Application
+ */
+
+use FluentMail\App\Hooks\Handlers\ActionsRegistrar;
+
+ActionsRegistrar::init($app);

wp-content/plugins/fluent-smtp/app/Hooks/filters.php

@@ -0,0 +1,21 @@
+<?php
+
+
+add_filter('fluent_crm/quick_links', function ($links) {
+    $links[] = [
+        'title' => __('SMTP/Mail Settings', 'fluent-smtp'),
+        'url'   => admin_url('options-general.php?page=fluent-mail#/')
+    ];
+
+    return $links;
+});
+
+add_filter( 'plugin_action_links_' . plugin_basename( FLUENTMAIL_PLUGIN_FILE ), function ($links) {
+    $links['settings'] = sprintf(
+        '<a href="%s" aria-label="%s">%s</a>',
+        admin_url('options-general.php?page=fluent-mail#/connections'),
+        esc_attr__( 'Go to Fluent SMTP Settings page', 'fluent-smtp' ),
+        esc_html__( 'Settings', 'fluent-smtp' )
+    );
+    return $links;
+}, 10, 1 );

wp-content/plugins/fluent-smtp/app/Hooks/index.php

@@ -0,0 +1 @@
+<?php // silence is golden