File: /home/enamadmin/www/wp-content/plugins/newsletter/system/delivery.php
<?php
/* @var $wpdb wpdb */
/* @var $this NewsletterSystemAdmin */
/* @var $controls NewsletterControls */
defined('ABSPATH') || exit;
wp_enqueue_script('tnp-chart');
$newsletter = Newsletter::instance();
$mailer = $newsletter->get_mailer();
if ($controls->is_action('test')) {
if (!NewsletterModule::is_email($controls->data['test_email'])) {
$controls->errors = 'The test email address is not set or is not correct.';
}
if (empty($controls->errors)) {
$options = $controls->data;
if ($controls->data['test_email'] == $newsletter->get_sender_email()) {
$controls->messages .= '<strong>Warning:</strong> you are using as test email the same address configured as sender in main configuration. Test can fail because of that.<br>';
}
$message = NewsletterMailerAddon::get_test_message($controls->data['test_email'], 'Newsletter test email at ' . date(DATE_ISO8601));
$r = $newsletter->deliver($message);
if (!is_wp_error($r)) {
$options['mail'] = 1;
$controls->messages .= 'A test email has been sent.<br>';
$controls->messages .= 'If you did not receive the message in your mailbox within 5 minutes '
. '(check also the spam folder), please contact your hosting provider.<br>'
. '<a href="https://www.thenewsletterplugin.com/documentation/?p=15170" target="_blank"><strong>Read more here</strong></a>.';
NewsletterMainAdmin::instance()->set_completed_step('test-email');
} else {
$options['mail'] = 0;
$options['mail_error'] = $r->get_error_message();
$controls->errors .= '<strong>FAILED</strong> (' . esc_html($r->get_error_message()) . ')<br>';
if (!empty($newsletter->options['return_path'])) {
$controls->errors .= '- Try to remove the return path on main settings.<br>';
}
$controls->errors .= '<a href="https://www.thenewsletterplugin.com/documentation/?p=15170" target="_blank"><strong>' . __('Read more', 'newsletter') . '</strong></a>.';
$parts = explode('@', $newsletter->get_sender_email());
$sitename = strtolower($_SERVER['SERVER_NAME']);
if (substr($sitename, 0, 4) == 'www.') {
$sitename = substr($sitename, 4);
}
if (strtolower($sitename) != strtolower($parts[1])) {
$controls->errors .= '- Try to set on main setting a sender address with the same domain of your blog: ' . esc_html($sitename) . ' (you are using ' . esc_html($newsletter->get_sender_email()) . ')<br>';
}
}
$this->save_options($options, 'status');
}
}
// Compute the number of newsletters ongoing and other stats
$emails = $wpdb->get_results("select * from " . NEWSLETTER_EMAILS_TABLE . " where status='sending' and send_on<" . time() . " order by id asc");
$total = 0;
$queued = 0;
foreach ($emails as $email) {
$total += $email->total;
$queued += $email->total - $email->sent;
}
$speed = $newsletter->get_send_speed();
$options = $this->get_options('status');
$functions = $this->get_hook_functions('phpmailer_init');
$icon = 'fas fa-plug';
if ($mailer instanceof NewsletterDefaultMailer) {
$mailer_name = 'Wordpress';
$service_name = 'Hosting Provider';
$icon = 'fab fa-wordpress';
} else {
$mailer_name = 'Unknown';
$service_name = 'Unknown';
if (is_object($mailer)) {
if (method_exists($mailer, 'get_description')) {
$mailer_name = esc_html($mailer->get_description());
$service_name = esc_html(ucfirst($mailer->get_name()) . ' Service');
} else {
$mailer_name = esc_html(get_class($mailer));
$service_name = $mailer_name;
}
}
}
$speed = Newsletter::instance()->get_send_speed();
?>
<style>
<?php include __DIR__ . '/css/system.css' ?>
</style>
<div class="wrap tnp-system tnp-system-delivery" id="tnp-wrap">
<?php include NEWSLETTER_ADMIN_HEADER; ?>
<div id="tnp-heading">
<h2><?php _e('System', 'newsletter') ?></h2>
<?php include __DIR__ . '/nav.php' ?>
</div>
<div id="tnp-body">
<?php $controls->show() ?>
<form method="post" action="">
<?php $controls->init(); ?>
<div class="tnp-dashboard">
<div class="tnp-cards-container">
<div class="tnp-card">
<?php
$condition = empty($options['mail']) ? 0 : 1;
if (!$condition && empty($options['mail_error']))
$condition = 2;
?>
<div class="tnp-card-title">Test <?php $this->condition_flag($condition) ?></div>
<p>
<?php $controls->text_email('test_email', ['required' => true]) ?>
<?php $controls->button('test', __('Send')) ?>
</p>
<?php if (!empty($options['mail_error'])) { ?>
<p style="font-weight: bold">Last test failed with error "<?php echo esc_html($options['mail_error']) ?>".</p>
<?php } ?>
<p>If you didn't receive the test email:</p>
<ol>
<li>If you're using an third party SMTP plugin, do a test from that plugin configuration panel</li>
<li>If you're using a Newsletter Delivery Addon, do a test from that addon configuration panel</li>
<li>If previous points do not apply to you, ask for support to your provider reporting the emails from your blog are not delivered</li>
</ol>
<p><a href="https://www.thenewsletterplugin.com/documentation/email-sending-issues" target="_blank">Read more to solve your issues, if any</a></p>
</div>
<div class="tnp-card">
<div class="tnp-card-title">Parameters</div>
<table class="widefat">
<thead>
<tr>
<th>Parameter</th>
<th></th>
<th>Note</th>
</tr>
</thead>
<tbody>
<tr>
<td>Speed</td>
<td class="status">
</td>
<td>
<strong><?php echo $speed ?></strong> emails per hour<br>
can be set on
<a href="admin.php?page=newsletter_main_main" target="_blank">Settings/General</a>
or on installed delivery addon if available
</td>
</tr>
<tr>
<td>Delivering</td>
<td class="status">
</td>
<td>
<?php if (count($emails)) { ?>
Delivering <?php echo count($emails) ?> newsletters to about <?php echo $queued ?> recipients.
At speed of <?php echo $speed ?> emails per hour it will take <?php printf('%.1f', $queued / $speed) ?> hours to finish.
<?php } else { ?>
Nothing delivering right now
<?php } ?>
</td>
</tr>
<tr>
<td>Mailer</td>
<td>
</td>
<td>
<?php echo esc_html($mailer->get_description()) ?>
</td>
</tr>
<tr>
<td>
Engine lock
</td>
<td>
</td>
<td>
<?php echo esc_html(get_option('newsletter_lock_engine')) ?>
</td>
</tr>
<tr>
<td>
NEWSLETTER_CRON_INTERVAL
</td>
<td>
</td>
<td>
<?php echo esc_html(NEWSLETTER_CRON_INTERVAL) ?> seconds
</td>
</tr>
<tr>
<td>
NEWSLETTER_SEND_DELAY
</td>
<td>
</td>
<td>
<?php echo esc_html(NEWSLETTER_SEND_DELAY) ?> milliseconds
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="tnp-cards-container">
<div class="tnp-card">
<?php
$stats = $this->get_send_stats();
$condition = 1;
if ($stats) {
$condition = $stats->mean > 5 ? 2 : 1;
}
?>
<div class="tnp-card-title">Statistics <?php $this->condition_flag($condition) ?></div>
<?php if (!$stats) { ?>
<p>Not enough data available.</p>
<?php } else { ?>
<?php if ($condition == 2) { ?>
<p>
<strong>Sending a single email is taking more than 5 seconds (by mean), too slow.</strong>
<a href="https://www.thenewsletterplugin.com/documentation/installation/status-panel/#email-speed" target="_blank">Read more</a>.
</p>
<?php } ?>
<p>
Average time to send an email: <?php echo $stats->mean ?> seconds<br>
<?php if ($stats->mean > 0) { ?>
Max speed: <?php echo sprintf("%.2f", 1.0 / $stats->mean * 3600) ?> emails per hour<br>
<?php } ?>
Max mean time measured: <?php echo $stats->max ?> seconds<br>
Min mean time measured: <?php echo $stats->min ?> seconds<br>
Total emails in the sample: <?php echo $stats->total_emails ?><br>
Total sending time: <?php echo $stats->total_time ?> seconds<br>
Runs in the sample: <?php echo $stats->total_runs ?><br>
Runs prematurely interrupted: <?php echo $stats->interrupted ?><br>
</p>
<canvas id="tnp-send-chart" style="width: 100%; height: 200px"></canvas>
<canvas id="tnp-send-speed" style="width: 100%; height: 200px"></canvas>
<script>
jQuery(function () {
var sendChartData = {
labels: <?php echo json_encode(range(1, count($stats->means))) ?>,
datasets: [
{
label: "Seconds to complete a batch",
data: <?php echo json_encode($stats->means) ?>,
borderColor: '#2980b9',
fill: false
}
]
};
var sendChartConfig = {
type: "line",
data: sendChartData,
options: {
responsive: false,
maintainAspectRatio: false,
scales: {
yAxes: [{
type: "linear",
ticks: {
beginAtZero: true
}
}
]
}
}
};
new Chart('tnp-send-chart', sendChartConfig);
var sendSpeedData = {
labels: <?php echo json_encode(range(1, count($stats->speeds))) ?>,
datasets: [
{
label: "Emails per second",
data: <?php echo json_encode($stats->speeds) ?>,
borderColor: '#2980b9',
fill: false
}
]
};
var sendSpeedConfig = {
type: "line",
data: sendSpeedData,
options: {
responsive: false,
maintainAspectRatio: false,
scales: {
yAxes: [{
type: "linear",
ticks: {
beginAtZero: true
}
}
]
}
}
};
new Chart('tnp-send-speed', sendSpeedConfig);
});
</script>
<p><?php $controls->button_reset('reset_send_stats') ?></p>
<?php } ?>
</div>
</div>
<div class="tnp-cards-container">
<div class="tnp-card">
<div class="tnp-card-title">How are messages delivered by Newsletter to your subscribers?</div>
<div class="tnp-flow tnp-flow-row">
<div class="tnp-mail"><i class="fas fa-envelope"></i><br><br>Newsletter<br>
(max: <?php echo esc_html($speed) ?> emails per hour)
</div>
<div class="tnp-arrow">→</div>
<div class="tnp-addon"><i class="<?php echo $icon ?>"></i><br><br><?php echo $mailer_name ?></div>
<div class="tnp-arrow">→</div>
<div class="tnp-service"><i class="fas fa-cog"></i><br><br>
<?php echo esc_html($service_name) ?>
</div>
<div class="tnp-arrow">→</div>
<div class="tnp-user"><i class="fas fa-user"></i><br><br>Subscriber</div>
</div>
</div>
</div>
<div class="tnp-cards-container">
<div class="tnp-card">
<div class="tnp-card-title">Filters applied to WP mailing system</div>
<?php if (empty($functions)) { ?>
<p>None.</p>
<?php } else { ?>
<p><?php echo $functions ?></p>
<?php } ?>
</div>
</div>
</div>
</form>
</div>
<?php include NEWSLETTER_ADMIN_FOOTER; ?>
</div>