first commit

wp-content/plugins/newsletter/statistics/css/tnp-statistics.css

@@ -0,0 +1,144 @@
+
+
+/* General Purpose Classes */
+
+.tnp-legend {
+    font-family: "Source Sans Pro", sans-serif;
+    color: #fff;
+    text-transform: uppercase;
+    padding: 0px 15px;
+    display: inline-block;
+    vertical-align: middle; 
+}
+
+
+
+
+/* Statistics General Infobox */
+
+.tnp-statistics-general-icon {
+    display: inline-block;
+    background-color: #2980B9;
+    padding: 20px 18px 14px 18px;
+}
+
+.tnp-statistics-general-box {
+    background-color: #2980B9;
+    display: inline-block;
+    padding: 10px;
+    margin: 10px 0px 10px 0px;
+}
+
+#tnp-heading .tnp-statistics-general-box p {
+    color: #fff;
+    line-height: 25px;
+}
+
+.tnp-statistics-general-title {
+    font-family: "Source Sans Pro", sans-serif;
+    letter-spacing: 0.05rem;
+    background-color: #2980B9;
+    color: #fff;
+    margin: 15px 0px;
+    padding: 9px;
+    border: 0;
+    font-size: 14px;
+    text-transform: uppercase;
+}
+
+.tnp-statistics-info-box {
+    background-color: #3a5168;
+}
+
+.tnp-statistics-info-box .button, .tnp-statistics-info-box .button-secondary {
+    vertical-align: middle;
+}
+
+/* Subscribers Reached Box   */
+
+
+
+.tnp-row-pie-charts {
+    margin: 20px 0px;
+}
+
+.tnp-row-pie-charts canvas[style] {
+    width: 100% !important;
+    height: 100% !important;
+}
+
+.tnp-widget .tnp-data {
+    text-align: center;
+    padding: 15px 0;
+}
+
+.tnp-widget .tnp-data .tnp-data-title{
+    font-size: 9px;
+    font-weight: 700;
+    text-transform: uppercase;
+    font-family: "Source Sans Pro";
+}
+
+.tnp-widget .tnp-data .tnp-data-value{
+    font-size: 15px;
+    color: #415b76;
+}
+
+
+
+/* Map Box */
+
+#tnp-map-chart {
+    width: 450px;
+    height: 320px;
+    margin: 0px auto;
+    position: relative;
+    overflow: hidden;
+}
+
+#tnp-map-chart .jqvmap-zoomin, #tnp-map-chart .jqvmap-zoomout {
+    color: #fff;
+    padding: 0px;
+}
+
+.tnp-map-legend, .tnp-gender-legend, .tnp-events-legend {
+    font-family: "Source Sans Pro", sans-serif;
+    color: #2C3E50;
+    text-transform: uppercase;
+    text-align: center;
+    margin-bottom: 40px !important;
+}
+
+/* Subscribers Gender Box */
+
+#tnp-gender-chart {
+    width: 90%;
+    margin: 0 auto;
+}
+
+
+/* Events Over Time */
+
+#tnp-events-chart {
+    width: 80%;
+    margin: 0 auto;
+    height: 300px;
+}
+
+/* Retarget Table Layout */
+
+.tnp-retarget .tnp-retarget-table {
+    background-color: #34495E;
+    border: none;
+}
+
+.tnp-retarget .tnp-retarget-table th {
+    color: #fff;
+    border: none;
+}
+
+#tnp-body.tnp-statistics .tnp-widget {
+    min-height: 500px;
+}
+
+

wp-content/plugins/newsletter/statistics/index.php

@@ -0,0 +1,302 @@
+<?php
+/* @var $wpdb wpdb */
+if (!defined('ABSPATH'))
+    exit;
+
+require_once NEWSLETTER_INCLUDES_DIR . '/controls.php';
+$module = NewsletterStatistics::instance();
+$controls = new NewsletterControls();
+
+wp_enqueue_script('tnp-chart');
+
+if ($controls->is_action('country')) {
+    $module->country();
+    $controls->messages = $module->country_result;
+}
+
+if ($controls->is_action('import')) {
+    $wpdb->query("insert ignore into " . $wpdb->prefix . "newsletter_sent (user_id, email_id, time) select user_id, email_id, UNIX_TIMESTAMP(created) from " . NEWSLETTER_STATS_TABLE);
+    $controls->messages = 'Done!';
+}
+
+$types = $wpdb->get_results("select distinct type from " . NEWSLETTER_EMAILS_TABLE);
+$type_options = array();
+
+foreach ($types as $type) {
+    if ($type->type == 'followup')
+        continue;
+    if ($type->type == 'message') {
+        $type_options[$type->type] = 'Standard Newsletter';
+    } else if ($type->type == 'feed') {
+        $type_options[$type->type] = 'Feed by Mail';
+    } else if (strpos($type->type, 'automated') === 0) {
+        list($a, $id) = explode('_', $type->type);
+        $type_options[$type->type] = 'Automated Channel ' . $id;
+    } else {
+        $type_options[$type->type] = $type->type;
+    }
+}
+
+
+if (empty($controls->data['type'])) {
+    $emails = $wpdb->get_results("select send_on, id, subject, total, status, type, track, sent, subject from " . NEWSLETTER_EMAILS_TABLE . " where status='sent' order by send_on desc limit 20");
+} else {
+    $emails = $wpdb->get_results($wpdb->prepare("select send_on, id, subject, total, type from " . NEWSLETTER_EMAILS_TABLE . " where status='sent' and type=%s order by send_on desc limit 20", $controls->data['type']));
+}
+$overview_labels = array();
+$overview_titles = array();
+$overview_open_rate = array();
+$overview_click_rate = array();
+
+$total_sent = 0;
+$open_count_total = 0;
+$click_count_total = 0;
+foreach ($emails as $email) {
+    $entry = array();
+
+    // Skip newsletters which has no sent records
+    $total = $module->get_total_count($email);
+    if (empty($total)) {
+        continue;
+    }
+
+    $total_sent += $total;
+
+    //$entry[0] = $email->subject . ' [' . date('Y-m-d', $email->send_on) . ', ' . $email->type . ']';
+    $entry[0] = date('Y-m-d', $email->send_on);
+    $open_count = $module->get_open_count($email);
+    $open_count_total += $open_count;
+    $entry[1] = $open_count / $total * 100;
+    $entry[1] = round($entry[1], 2);
+    $entry[2] = $email->subject; // . ' (' . percent($open_count, $email->sent) . ')';
+    $click_count = $module->get_click_count($email);
+    $click_count_total += $click_count;
+    $entry[3] = $click_count / $total * 100;
+    $entry[3] = round($entry[3], 2);
+
+    $overview_labels[] = strftime('%a, %e %b', $email->send_on);
+    $overview_open_rate[] = $entry[1];
+    $overview_click_rate[] = $entry[3];
+    $overview_titles[] = $entry[2];
+}
+
+$overview_labels = array_reverse($overview_labels);
+$overview_open_rate = array_reverse($overview_open_rate);
+$overview_click_rate = array_reverse($overview_click_rate);
+?>
+
+<div class="wrap" id="tnp-wrap">
+    <?php include NEWSLETTER_DIR . '/tnp-header.php' ?>
+    <div id="tnp-heading">
+
+
+        <h2><?php _e('Global Newsletter Statistics', 'newsletter') ?></h2>
+
+    </div>
+
+    <div id="tnp-body" class="tnp-statistics">
+        <form method="post" action="">
+
+            <?php $controls->init(); ?>
+
+            <?php if (empty($emails)) { ?>
+                <img src="https://cdn.thenewsletterplugin.com/tnp-reports-dummy-image.png" style="max-width: 100%">
+
+            <?php } else { ?>
+
+                <div class="row">
+
+                    <div class="tnp-statistics-info-box">
+                        <p class="tnp-legend">Select Newsletter category:</p>
+                        <?php $controls->select('type', $type_options, 'All') ?>
+                        <?php $controls->button('update', __('Update Charts', 'newsletter')) ?>
+                    </div>
+
+                </div>
+
+                <br>
+
+                <div class="row">
+                    <div class="col-md-6">
+                        <div class="tnp-widget">
+                            <h3>Overview (Last 20 Newsletters)</h3>
+                            <div class="inside">
+
+                                <p class="tnp-events-legend">Subscribers interactions distribution over time,<br>starting from the sending day.</p>
+
+                                <div id="tnp-events-chart">
+                                    <canvas id="tnp-events-chart-canvas"></canvas>
+                                </div>
+
+                                <script type="text/javascript">
+                                    var events_data = {
+                                        labels: <?php echo json_encode($overview_labels) ?>,
+                                        datasets: [
+                                            {
+                                                label: "Open",
+                                                fill: false,
+                                                strokeColor: "#27AE60",
+                                                backgroundColor: "#27AE60",
+                                                borderColor: "#27AE60",
+                                                pointBorderColor: "#27AE60",
+                                                pointBackgroundColor: "#27AE60",
+                                                data: <?php echo json_encode($overview_open_rate) ?>
+                                            },
+                                            {
+                                                label: "Click",
+                                                fill: false,
+                                                strokeColor: "#C0392B",
+                                                backgroundColor: "#C0392B",
+                                                borderColor: "#C0392B",
+                                                pointBorderColor: "#C0392B",
+                                                pointBackgroundColor: "#C0392B",
+                                                data: <?php echo json_encode($overview_click_rate) ?>,
+                                                yAxisID: "y-axis-2"
+                                            }
+                                        ]
+                                    };
+
+                                    var titles = <?php echo json_encode(array_reverse($overview_titles)) ?>;
+
+                                    jQuery(document).ready(function ($) {
+                                        ctxe = $('#tnp-events-chart-canvas').get(0).getContext("2d");
+                                        eventsLineChart = new Chart(ctxe, {type: 'line', data: events_data,
+                                            options: {
+                                                scales: {
+                                                    xAxes: [{type: "category", "id": "x-axis-1", gridLines: {display: false}, ticks: {fontFamily: "Source Sans Pro"}}],
+                                                    yAxes: [
+                                                        {type: "linear", "id": "y-axis-1", gridLines: {display: false}, ticks: {fontColor: "#27AE60", fontFamily: "Source Sans Pro"}},
+                                                        {type: "linear", "id": "y-axis-2", position: "right", gridLines: {display: false}, ticks: {fontColor: "#C0392B", fontFamily: "Source Sans Pro"}}
+                                                    ]
+                                                },
+                                                tooltips: {
+                                                    callbacks: {
+                                                        afterTitle: function (data) {
+                                                            return titles[data[0].index];
+                                                        },
+                                                        label: function (tooltipItem, data) {
+                                                            return data.datasets[0].label + ": " + data.datasets[0].data[tooltipItem.index] + "% " +
+                                                                    data.datasets[1].label + ": " + data.datasets[1].data[tooltipItem.index] + "%";
+                                                        }
+                                                    }
+                                                }
+                                            }
+                                        });
+                                    });
+                                </script>
+
+                                <div class="row">
+                                    <div class="col-md-4">
+                                        <div class="tnp-data">
+                                            <div class="tnp-data-title"><?php _e('Total Sent Messages', 'newsletter') ?></div>
+                                            <div class="tnp-data-value"><?php echo $total_sent; ?></div>
+                                        </div>
+                                    </div>
+
+                                    <div class="col-md-4">
+                                        <div class="tnp-data">
+                                            <div class="tnp-data-title"><?php _e('Opened Newsletters', 'newsletter') ?></div>
+                                            <div class="tnp-data-value"><?php echo $open_count_total; ?> (<?php echo $module->percent($open_count_total, $total_sent); ?>)</div>
+                                        </div>
+                                    </div>
+
+                                    <div class="col-md-4">
+                                        <div class="tnp-data">
+                                            <div class="tnp-data-title"><?php _e('Clicked Newsletters', 'newsletter') ?></div>
+                                            <div class="tnp-data-value"><?php echo $click_count_total; ?> (<?php echo $module->percent($click_count_total, $total_sent); ?>)</div>
+                                        </div>
+                                    </div>
+                                </div>  
+                            </div>
+                        </div>
+                    </div>
+
+
+                    <!-- WORLD MAP -->
+                    <div class="col-md-6">
+                        <div class="tnp-widget">
+                            <h3><?php _e('Countries', 'newsletter') ?></h3>
+                            <div class="inside">
+                                <?php
+                                if (!has_action('newsletter_statistics_index_map')) {
+                                    ?><a href="https://www.thenewsletterplugin.com/premium?utm_source=plugin&utm_medium=link&utm_content=worldmap&utm_campaign=newsletter-reports" target="_blank">
+                                        <img src="<?php echo plugins_url('newsletter') ?>/statistics/images/map.gif" style="width: 100%">
+                                    </a><?php
+                                } else {
+                                    do_action('newsletter_statistics_index_map');
+                                }
+                                ?>
+
+                            </div>
+                        </div>
+                    </div>
+
+                </div>
+
+                <div class="row">
+
+
+                    <!-- LAST NEWSLETTERS -->
+                    <div class="col-md-12">
+                        <div class="tnp-widget">
+                            <h3><?php _e('Last newsletters', 'newsletter') ?> <a href="admin.php?page=newsletter_statistics_newsletters"><?php _e('Details', 'newsletter') ?></a></h3>
+                            <div class="inside">
+                                <?php
+                                $emails = $wpdb->get_results($wpdb->prepare("select send_on, id, subject, total, status, type, track, sent, subject from " . NEWSLETTER_EMAILS_TABLE . " where status in ('sent', 'sending') and send_on<%d order by send_on desc limit 5", time()));
+                                ?>
+
+                                <table class="widefat">
+                                    <thead>
+                                        <tr>
+                                            <th>Id</th>
+                                            <th><?php _e('Subject', 'newsletter') ?></th>
+                                            <th>Type</th>
+                                            <th><?php _e('Status', 'newsletter') ?></th>
+                                            <th>&nbsp;</th>
+                                        </tr>
+                                    </thead>
+
+                                    <tbody>
+                                        <?php foreach ($emails as &$email) { ?>
+                                            <tr>
+                                                <td><?php echo $email->id; ?></td>
+                                                <td><?php echo htmlspecialchars($email->subject); ?></td>
+                                                <td><?php echo $module->get_email_type_label($email); ?></td>
+                                                <td><?php echo $module->get_email_status_label($email); ?></td>
+                                                <td>
+                                                    <a href="<?php echo NewsletterStatistics::instance()->get_statistics_url($email->id); ?>" class="button-primary">Statistics</a>
+                                                </td>
+                                            </tr>
+                                        <?php } ?>
+                                    </tbody>
+                                </table>
+
+                            </div>
+                        </div>
+                    </div>
+                </div>
+
+                <div class="row">
+                    <div class="col-md-6">
+                        <div class="tnp-statistics-info-box">
+                            <p class="tnp-legend">Check Statistics global<br>configurations.</p>
+                            <a class="button-primary" href="admin.php?page=newsletter_statistics_settings"><?php _e('Settings') ?></a>
+                        </div>
+                    </div>
+                    <div class="col-md-6">
+
+                    </div>
+
+                </div>
+
+
+
+            <?php } ?>
+
+
+        </form>
+
+
+    </div>
+    <?php include NEWSLETTER_DIR . '/tnp-footer.php' ?>
+</div>

wp-content/plugins/newsletter/statistics/newsletters.php

@@ -0,0 +1,79 @@
+<?php
+if (!defined('ABSPATH')) exit;
+
+require_once NEWSLETTER_INCLUDES_DIR . '/controls.php';
+$module = NewsletterStatistics::instance();
+$controls = new NewsletterControls();
+$emails = Newsletter::instance()->get_emails();
+
+$types = $wpdb->get_results("select distinct type from " . NEWSLETTER_EMAILS_TABLE);
+$type_options = array();
+foreach ($types as $type) {
+    if ($type->type == 'followup')
+        continue;
+    if ($type->type == 'message') {
+        $type_options[$type->type] = 'Standard Newsletter';
+    } else if ($type->type == 'feed') {
+        $type_options[$type->type] = 'Feed by Mail';
+    } else if (strpos($type->type, 'automated') === 0) {
+        list($a, $id) = explode('_', $type->type);
+        $type_options[$type->type] = 'Automated Channel ' . $id;
+    } else {
+        $type_options[$type->type] = $type->type;
+    }
+}
+?>
+
+<div class="wrap" id="tnp-wrap">
+
+    <?php include NEWSLETTER_DIR . '/tnp-header.php'; ?>
+
+    <div id="tnp-heading">
+
+        <h2><?php _e('Newsletters', 'newsletter') ?></h2>
+
+    </div>
+
+    <div id="tnp-body">
+
+        <form method="post" action="">
+            <?php $controls->init(); ?>
+
+            <table class="widefat">
+                <thead>
+                    <tr>
+                        <th>Id</th>
+                        <th><?php _e('Subject', 'newsletter') ?></th>
+                        <th>Type</th>
+                        <th><?php _e('Status', 'newsletter') ?></th>
+                        <th>&nbsp;</th>
+                        <th>&nbsp;</th>
+                        <th><?php _e('Tracking', 'newsletter') ?></th>
+                        <th>&nbsp;</th>
+                    </tr>
+                </thead>
+
+                <tbody>
+                    <?php foreach ($emails as &$email) { ?>
+                        <?php if ($email->type != 'message' && $email->type != 'feed') continue; ?>
+                        <tr>
+                            <td><?php echo $email->id; ?></td>
+                            <td><?php echo esc_html($email->subject); ?></td>
+                            <td><?php echo esc_html($module->get_email_type_label($email)) ?></td>
+                            <td><?php echo esc_html($module->get_email_status_label($email)) ?></td>
+                            <td><?php if ($email->status == 'sent' || $email->status == 'sending') echo $email->sent . ' ' . __('of', 'newsletter') . ' ' . $email->total; ?></td>
+                            <td><?php if ($email->status == 'sent' || $email->status == 'sending') echo $module->format_date($email->send_on); ?></td>
+                            <td><?php echo $email->track == 1 ? 'Yes' : 'No'; ?></td>
+                            <td>
+                                <a class="button-primary" href="<?php echo NewsletterStatistics::instance()->get_statistics_url($email->id); ?>">statistics</a>
+                            </td>
+                        </tr>
+                    <?php } ?>
+                </tbody>
+            </table>
+
+        </form>
+    </div>
+
+    <?php include NEWSLETTER_DIR . '/tnp-footer.php'; ?>
+</div>

wp-content/plugins/newsletter/statistics/settings.php

@@ -0,0 +1,77 @@
+<?php
+if (!defined('ABSPATH')) exit;
+
+require_once NEWSLETTER_INCLUDES_DIR . '/controls.php';
+$module = NewsletterStatistics::instance();
+$controls = new NewsletterControls();
+
+if (!$controls->is_action()) {
+    $controls->data = $module->options;
+}
+
+do_action('newsletter_statistics_settings_init', $controls);
+
+if ($controls->is_action('save')) {
+    $module->save_options($controls->data);
+    $controls->add_message_saved();
+}
+?>
+
+<div class="wrap" id="tnp-wrap">
+
+    <?php include NEWSLETTER_DIR . '/tnp-header.php'; ?>
+
+    <div id="tnp-heading">
+
+        <h2><?php _e('Statistics Settings', 'newsletter') ?></h2>
+
+    </div>
+
+    <div id="tnp-body">
+
+        <form method="post" action="">
+            <?php $controls->init(); ?>
+
+
+            <div id="tabs">
+                <ul>
+                    <li><a href="#tab-configuration"><?php _e('Configuration', 'newsletter') ?></a></li>
+                    <li><a href="#tab-countries"><?php _e('Countries', 'newsletter') ?></a></li>
+                </ul>
+
+
+                <div id="tab-configuration">
+                    <table class="form-table">
+                        <tr>
+                            <th><?php _e('Secret key', 'newsletter') ?></th>
+                            <td>
+                                <?php $controls->text('key') ?>
+                                <p class="description">
+                                    <?php _e('This auto-generated key is used to protect the click tracking. If you change it old tracking links to external domains won\'t be registered anymore.', 'newsletter-statistics') ?> 
+                                </p>
+                            </td>
+                        </tr>        
+                    </table>
+                    <p>
+                        <?php $controls->button_save() ?>
+                    </p>
+                </div>
+
+                <div id="tab-countries">
+                    <?php
+                    if (!has_action('newsletter_statistics_settings_countries')) {
+                        ?>
+                        <p>This panel contains information about country detection added by 
+                            <a href="https://www.thenewsletterplugin.com/plugins/newsletter/reports-module" target="_blank">Reports Extension</a>.</p>
+                        <?php
+                    } else {
+                        do_action('newsletter_statistics_settings_countries', $controls);
+                    }
+                    ?>
+                </div>
+            </div>
+        </form>
+    </div>
+
+    <?php include NEWSLETTER_DIR . '/tnp-footer.php' ?>
+</div>

wp-content/plugins/newsletter/statistics/statistics.php

@@ -0,0 +1,351 @@
+<?php
+
+defined('ABSPATH') || exit;
+
+class NewsletterStatistics extends NewsletterModule {
+
+    static $instance;
+    
+    const SENT_READ = 1;
+    const SENT_CLICK = 2;
+
+    /**
+     * @return NewsletterStatistics
+     */
+    static function instance() {
+        if (self::$instance == null) {
+            self::$instance = new NewsletterStatistics();
+        }
+        return self::$instance;
+    }
+
+    function __construct() {
+        parent::__construct('statistics', '1.1.8');
+        add_action('wp_loaded', array($this, 'hook_wp_loaded'));
+        if (is_admin()) {
+            add_action('admin_enqueue_scripts', array($this, 'hook_admin_enqueue_scripts'));
+        }
+    }
+
+    function hook_admin_enqueue_scripts() {
+        if (isset($_GET['page']) && (strpos($_GET['page'], 'newsletter_statistics') === 0 || strpos($_GET['page'], 'newsletter_reports') === 0)) {
+            wp_enqueue_style('newsletter-admin-statistics', plugins_url('newsletter') . '/statistics/css/tnp-statistics.css', array('tnp-admin'), time());
+        }
+    }
+
+    /**
+     * 
+     * @global wpdb $wpdb
+     */
+    function hook_wp_loaded() {
+        global $wpdb;
+
+        // Newsletter Link Tracking
+        if (isset($_GET['nltr'])) {
+
+            // Patch for links with ;
+            $parts = explode(';', base64_decode($_GET['nltr']));
+            $email_id = (int) array_shift($parts);
+            $user_id = (int) array_shift($parts);
+            $signature = array_pop($parts);
+            $anchor = array_pop($parts); // No more used
+            // The remaining elements are the url splitted when it contains
+            $url = implode(';', $parts);
+
+            if (empty($user_id) || empty($url)) {
+                header("HTTP/1.0 404 Not Found");
+                die('Invalid data');
+            }
+
+            $parts = parse_url($url);
+
+            $verified = $signature == md5($email_id . ';' . $user_id . ';' . $url . ';' . $anchor . $this->options['key']);
+
+            if (!$verified) {
+                header("HTTP/1.0 404 Not Found");
+                die('Url not verified');
+            }
+
+            $user = Newsletter::instance()->get_user($user_id);
+            if (!$user) {
+                header("HTTP/1.0 404 Not Found");
+                die('Invalid subscriber');
+            }
+
+            // Test emails
+            if (empty($email_id)) {
+                header('Location: ' . esc_url_raw($url));
+                die();
+            }
+
+            $email = $this->get_email($email_id);
+            if (!$email) {
+                header("HTTP/1.0 404 Not Found");
+                die('Invalid newsletter');
+            }
+
+            setcookie('newsletter', $user->id . '-' . $user->token, time() + 60 * 60 * 24 * 365, '/');
+
+            $is_action = strpos($url, '?na=');
+
+            $ip = $this->get_remote_ip();
+            $ip = $this->process_ip($ip);
+
+            if (!$is_action) {
+                $this->add_click($url, $user_id, $email_id, $ip);
+                $this->update_open_value(self::SENT_CLICK, $user_id, $email_id, $ip);
+            } else {
+                // Track an action as an email read and not a click
+                $this->update_open_value(self::SENT_READ, $user_id, $email_id, $ip);
+            }
+            
+            $this->update_user_ip($user, $ip);
+            $this->update_user_last_activity($user);
+
+            header('Location: ' . apply_filters('newsletter_redirect_url', $url, $email, $user));
+            die();
+        }
+
+        // Newsletter Open Traking Image
+        if (isset($_GET['noti'])) {
+            $this->logger->debug('Open tracking: ' . $_GET['noti']);
+
+            list($email_id, $user_id, $signature) = explode(';', base64_decode($_GET['noti']), 3);
+
+            $email = $this->get_email($email_id);
+            if (!$email) {
+                $this->logger->error('Open tracking request for unexistant email');
+                die();
+            }
+
+            $user = $this->get_user($user_id);
+            if (!$user) {
+                $this->logger->error('Open tracking request for unexistant subscriber');
+                die();
+            }
+
+            if ($email->token) {
+                $this->logger->debug('Signature: ' . $signature);
+                $s = md5($email_id . $user_id . $email->token);
+                if ($s != $signature) {
+                    $this->logger->error('Open tracking request with wrong signature. Email token: ' . $email->token);
+                    die();
+                }
+            } else {
+                $this->logger->info('Email with no token hence not signature to check');
+            }
+
+            $ip = $this->get_remote_ip();
+            $ip = $this->process_ip($ip); 
+
+            $this->add_click('', $user_id, $email_id, $ip);
+            $this->update_open_value(self::SENT_READ, $user_id, $email_id, $ip);
+
+            $this->update_user_last_activity($user);
+
+            header('Content-Type: image/gif', true);
+            echo base64_decode('_R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7');
+            die();
+        }
+    }
+
+    function upgrade() {
+        global $wpdb, $charset_collate;
+
+        parent::upgrade();
+
+        $sql = "CREATE TABLE `" . $wpdb->prefix . "newsletter_stats` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  `url` varchar(255) NOT NULL DEFAULT '',
+  `user_id` int(11) NOT NULL DEFAULT '0',
+  `email_id` varchar(10) NOT NULL DEFAULT '0',
+  `link_id` int(11) NOT NULL DEFAULT '0',
+  `ip` varchar(20) NOT NULL DEFAULT '',
+  `country` varchar(4) NOT NULL DEFAULT '',
+  PRIMARY KEY (`id`),
+  KEY `email_id` (`email_id`),
+  KEY `user_id` (`user_id`)
+) $charset_collate;";
+
+        dbDelta($sql);
+
+        if (empty($this->options['key'])) {
+            $this->options['key'] = md5($_SERVER['REMOTE_ADDR'] . rand(100000, 999999) . time());
+            $this->save_options($this->options);
+        }
+    }
+
+    function admin_menu() {
+        $this->add_admin_page('index', 'Statistics');
+        $this->add_admin_page('view', 'Statistics');
+        $this->add_admin_page('newsletters', 'Statistics');
+        $this->add_admin_page('settings', 'Statistics');
+        $this->add_admin_page('view_retarget', 'Statistics');
+        $this->add_admin_page('view_urls', 'Statistics');
+        $this->add_admin_page('view_users', 'Statistics');
+    }
+
+    function relink($text, $email_id, $user_id, $email_token = '') {
+        $this->relink_email_id = $email_id;
+        $this->relink_user_id = $user_id;
+        $this->relink_email_token = $email_token;
+
+        $this->logger->debug('Relink with token: ' . $email_token);
+        $text = preg_replace_callback('/(<[aA][^>]+href[\s]*=[\s]*["\'])([^>"\']+)(["\'][^>]*>)(.*?)(<\/[Aa]>)/is', array($this, 'relink_callback'), $text);
+
+        $signature = md5($email_id . $user_id . $email_token);
+        $text = str_replace('</body>', '<img width="1" height="1" alt="" src="' . home_url('/') . '?noti=' . urlencode(base64_encode($email_id . ';' . $user_id . ';' . $signature)) . '"/></body>', $text);
+        return $text;
+    }
+
+    function relink_callback($matches) {
+        $href = trim(str_replace('&amp;', '&', $matches[2]));
+
+        // Do not replace the tracking or subscription/unsubscription links.
+        //if (strpos($href, '/newsletter/') !== false) {
+        //    return $matches[0];
+        //}
+        
+        // Do not replace URL which are tags (special case for ElasticEmail)
+        if (strpos($href, '{') === 0) {
+            return $matches[0];
+        }
+
+//        if (strpos($href, '?na=') !== false) {
+//            return $matches[0];
+//        }
+        // Do not relink anchors
+        if (substr($href, 0, 1) == '#') {
+            return $matches[0];
+        }
+        // Do not relink mailto:
+        if (substr($href, 0, 7) == 'mailto:') {
+            return $matches[0];
+        }
+
+        // This is the link text which is added to the tracking data
+        $anchor = '';
+//        if ($this->options['anchor'] == 1) {
+//            $anchor = trim(str_replace(';', ' ', $matches[4]));
+//            // Keep images but not other tags
+//            $anchor = strip_tags($anchor, '<img>');
+//
+//            // Truncate if needed to avoid to much long URLs
+//            if (stripos($anchor, '<img') === false && strlen($anchor) > 100) {
+//                $anchor = substr($anchor, 0, 100);
+//            }
+//        }
+        $r = $this->relink_email_id . ';' . $this->relink_user_id . ';' . $href . ';' . $anchor;
+        $r = $r . ';' . md5($r . $this->options['key']);
+        $r = base64_encode($r);
+        $r = urlencode($r);
+
+        $url = home_url('/') . '?nltr=' . $r;
+
+        return $matches[1] . $url . $matches[3] . $matches[4] . $matches[5];
+    }
+
+    function get_statistics_url($email_id) {
+        $page = apply_filters('newsletter_statistics_view', 'newsletter_statistics_view');
+        return 'admin.php?page=' . $page . '&amp;id=' . $email_id;
+    }
+
+    function maybe_fix_sent_stats($email) {
+        global $wpdb;
+
+        // Very old emails was missing the send_on
+        if ($email->send_on == 0) {
+            $this->query($wpdb->prepare("update " . NEWSLETTER_EMAILS_TABLE . " set send_on=unix_timestamp(created) where id=%d limit 1", $email->id));
+            $email = $this->get_email($email->id);
+        }
+
+        if ($email->status == 'sending') {
+            return;
+        }
+
+        if ($email->type == 'followup') {
+            return;
+        }
+
+        $count = $wpdb->get_var($wpdb->prepare("select count(*) from " . NEWSLETTER_SENT_TABLE . " where email_id=%d", $email->id));
+
+        if ($count) {
+            return;
+        }
+
+        if (empty($email->query)) {
+            $email->query = "select * from " . NEWSLETTER_USERS_TABLE . " where status='C'";
+        }
+
+        $query = $email->query . " and unix_timestamp(created)<" . $email->send_on;
+
+        $query = str_replace('*', 'id, ' . $email->id . ', ' . $email->send_on, $query);
+        $this->query("insert ignore into " . NEWSLETTER_SENT_TABLE . " (user_id, email_id, time) " . $query);
+    }
+
+    function update_stats($email) {
+        global $wpdb;
+
+        $wpdb->query($wpdb->prepare("update " . $wpdb->prefix . "newsletter_sent s1 join " . $wpdb->prefix . "newsletter_stats s2 on s1.user_id=s2.user_id and s1.email_id=s2.email_id and s1.email_id=%d set s1.open=1, s1.ip=s2.ip", $email->id));
+        $wpdb->query($wpdb->prepare("update " . $wpdb->prefix . "newsletter_sent s1 join " . $wpdb->prefix . "newsletter_stats s2 on s1.user_id=s2.user_id and s1.email_id=s2.email_id and s2.url<>'' and s1.email_id=%d set s1.open=2, s1.ip=s2.ip", $email->id));
+    }
+    
+    function reset_stats($email) {
+        global $wpdb;
+        $email_id = $this->to_int_id($email);
+        $this->query("delete from " . $wpdb->prefix . "newsletter_sent where email_id=" . $email_id);
+        $this->query("delete from " . $wpdb->prefix . "newsletter_stats where email_id=" . $email_id);
+    }
+
+    function get_total_count($email_id) {
+        global $wpdb;
+        return (int) $wpdb->get_var($wpdb->prepare("select count(*) from " . NEWSLETTER_SENT_TABLE . " where email_id=%d", $this->to_int_id($email_id)));
+    }
+
+    function get_open_count($email_id) {
+        global $wpdb;
+
+        return (int) $wpdb->get_var($wpdb->prepare("select count(*) from " . NEWSLETTER_SENT_TABLE . " where open>0 and email_id=%d", $this->to_int_id($email_id)));
+    }
+
+    function get_click_count($email_id) {
+        global $wpdb;
+        return (int) $wpdb->get_var($wpdb->prepare("select count(*) from " . NEWSLETTER_SENT_TABLE . " where open>1 and email_id=%d", $this->to_int_id($email_id)));
+    }
+
+    function get_error_count($email_id) {
+        global $wpdb;
+        return (int) $wpdb->get_var($wpdb->prepare("select count(*) from " . NEWSLETTER_SENT_TABLE . " where status>0 and email_id=%d", $this->to_int_id($email_id)));
+    }
+
+    function add_click($url, $user_id, $email_id, $ip = null) {
+        global $wpdb;
+        if (is_null($ip)) {
+            $ip = $this->get_remote_ip();
+        }
+        
+        $ip = $this->process_ip($ip);
+        
+        $this->insert(NEWSLETTER_STATS_TABLE, array(
+            'email_id' => $email_id,
+            'user_id' => $user_id,
+            'url' => $url,
+            'ip' => $ip
+                )
+        );
+    }
+
+    function update_open_value($value, $user_id, $email_id, $ip = null) {
+        global $wpdb;
+        if (is_null($ip)) {
+            $ip = $this->get_remote_ip();
+        }
+        $ip = $this->process_ip($ip);
+        $this->query($wpdb->prepare("update " . NEWSLETTER_SENT_TABLE . " set open=%d, ip=%s where email_id=%d and user_id=%d and open<%d limit 1", $value, $ip, $email_id, $user_id, $value));
+    }
+
+}
+
+NewsletterStatistics::instance();
+

wp-content/plugins/newsletter/statistics/view-retarget.php

@@ -0,0 +1,31 @@
+<?php
+if (!defined('ABSPATH')) exit;
+
+$email_id = (int) $_GET['id'];
+$module = NewsletterStatistics::instance();
+
+$email = $module->get_email($email_id);
+?>
+
+<div class="wrap" id="tnp-wrap">
+
+    <?php include NEWSLETTER_DIR . '/tnp-header.php' ?>
+
+    <div id="tnp-heading">
+        <h2>Retargeting for "<?php echo htmlspecialchars($email->subject); ?>"</h2>
+
+    </div>
+
+    <div id="tnp-body" style="min-width: 500px">
+
+        <p><a href="admin.php?page=newsletter_statistics_view&id=<?php echo $email->id ?>" class="button-primary">Back to the dashboard</a></p>
+
+        <a href="https://www.thenewsletterplugin.com/premium?utm_source=plugin&utm_medium=link&utm_content=retarget&utm_campaign=newsletter-reports" target="_blank">
+            <img style="width: 100%" src="<?php echo plugins_url('newsletter') ?>/statistics/images/retarget.png">
+        </a>
+
+    </div>
+
+    <?php include NEWSLETTER_DIR . '/tnp-footer.php' ?>
+
+</div>

wp-content/plugins/newsletter/statistics/view-urls.php

@@ -0,0 +1,29 @@
+<?php
+if (!defined('ABSPATH')) exit;
+
+$email_id = (int) $_GET['id'];
+$module = NewsletterStatistics::instance();
+
+$email = $module->get_email($email_id);
+?>
+
+<div class="wrap" id="tnp-wrap">
+    
+    <?php include NEWSLETTER_DIR . '/tnp-header.php' ?>
+
+    <div id="tnp-heading">
+        <h2>Clicked links for "<?php echo esc_html($email->subject); ?>"</h2>
+
+    </div>
+
+    <div id="tnp-body" style="min-width: 500px">
+
+        <p><a href="admin.php?page=newsletter_statistics_view&id=<?php echo $email->id ?>" class="button-primary">Back to the dashboard</a></p>
+
+        <p>Clicked link details are available with <a href="https://www.thenewsletterplugin.com/plugins/newsletter/reports-module" target="_blank">Report Extension</a>.</p>
+
+    </div>
+
+    <?php include NEWSLETTER_DIR . '/tnp-footer.php' ?>
+    
+</div>

wp-content/plugins/newsletter/statistics/view-users.php

@@ -0,0 +1,30 @@
+<?php
+if (!defined('ABSPATH')) exit;
+
+$email_id = (int) $_GET['id'];
+$module = NewsletterStatistics::instance();
+
+$email = $module->get_email($email_id);
+?>
+
+<div class="wrap" id="tnp-wrap">
+
+    <?php include NEWSLETTER_DIR . '/tnp-header.php' ?>
+
+    <div id="tnp-heading">
+        <h2>Reached subscribers for "<?php echo esc_html($email->subject); ?>"</h2>
+    </div>
+
+    <div id="tnp-body" style="min-width: 500px">
+
+        <p><a href="admin.php?page=newsletter_statistics_view&id=<?php echo $email->id ?>" class="button-primary">Back to the dashboard</a></p>
+
+        <a href="https://www.thenewsletterplugin.com/premium?utm_source=plugin&utm_medium=link&utm_content=audience&utm_campaign=newsletter-reports" target="_blank">
+            <img src="<?php echo plugins_url('newsletter') ?>/statistics/images/users.png">
+        </a>
+
+    </div>
+
+    <?php include NEWSLETTER_DIR . '/tnp-footer.php' ?>
+
+</div>

wp-content/plugins/newsletter/statistics/view.php

@@ -0,0 +1,162 @@
+<?php
+if (!defined('ABSPATH')) exit;
+
+require_once NEWSLETTER_INCLUDES_DIR . '/controls.php';
+
+$module = NewsletterStatistics::instance();
+$controls = new NewsletterControls();
+
+wp_enqueue_script('tnp-chart');
+
+$email = $module->get_email($_GET['id']);
+
+//$module->maybe_fix_sent_stats($email);
+$module->update_stats($email);
+       
+
+$total_count = $module->get_total_count($email->id);
+$open_count = $module->get_open_count($email->id);
+$click_count = $module->get_click_count($email->id);
+
+?>
+
+<div class="wrap" id="tnp-wrap">
+    <?php include NEWSLETTER_DIR . '/tnp-header.php' ?>
+    <div id="tnp-heading">
+        <h2><?php _e('Statistics of', 'newsletter') ?> "<?php echo htmlspecialchars($email->subject); ?>"</h2>
+    </div>
+
+    <div id="tnp-body" style="min-width: 500px">
+        
+        <?php if ($email->status == 'new') { ?>
+        
+        <div class="tnp-warning"><?php _e('No data, newsletter not sent yet.', 'newsletter')?></div>
+        
+        <?php } else { ?>
+
+        <form action="" method="post">
+            <?php $controls->init(); ?>
+
+            <div class="row">
+
+                <div class="col-md-6">
+                    <!-- START Statistics -->
+                    <div class="tnp-widget">
+
+                        <h3>Subscribers Reached <a href="admin.php?page=newsletter_statistics_view_users&id=<?php echo $email->id ?>">Details</a> 
+                            <a href="admin.php?page=newsletter_statistics_view_retarget&id=<?php echo $email->id ?>">Retarget</a></h3>
+                        
+                        <div class="inside">
+                            <div class="row tnp-row-pie-charts">
+                                <div class="col-md-6">
+                                    <canvas id="tnp-rates1-chart"></canvas>
+                                </div>
+                                <div class="col-md-6">
+                                    <canvas id="tnp-rates2-chart"></canvas>
+                                </div>
+                            </div>
+
+                            <script type="text/javascript">
+                               
+                                var rates1 = {
+                                    labels: [
+                                        "Not opened",
+                                        "Opened"
+                                    ],
+                                    datasets: [
+                                        {
+                                            data: [<?php echo $total_count - $open_count; ?>, <?php echo $open_count; ?>],
+                                            backgroundColor: [
+                                                "#E67E22",
+                                                "#2980B9"
+                                            ],
+                                            hoverBackgroundColor: [
+                                                "#E67E22",
+                                                "#2980B9"
+                                            ]
+                                        }]};
+                                        
+                                var rates2 = {
+                                    labels: [
+                                        "Opened",
+                                        "Clicked"
+                                    ],
+                                    datasets: [
+                                        {
+                                            data: [<?php echo $open_count-$click_count; ?>, <?php echo $click_count; ?>],
+                                            backgroundColor: [
+                                                "#2980B9",
+                                                "#27AE60"
+                                            ],
+                                            hoverBackgroundColor: [
+                                                "#2980B9",
+                                                "#27AE60"
+                                            ]
+                                        }]};
+
+                                jQuery(document).ready(function ($) {
+                                    ctx1 = $('#tnp-rates1-chart').get(0).getContext("2d");
+                                    ctx2 = $('#tnp-rates2-chart').get(0).getContext("2d");
+                                    myPieChart1 = new Chart(ctx1, {type: 'pie', data: rates1});
+                                    myPieChart2 = new Chart(ctx2, {type: 'pie', data: rates2});
+                                });
+
+                            </script>
+
+                            <div class="row tnp-row-values">
+                                <div class="col-md-6">
+                                    <div class="tnp-data">
+                                        <?php if ($email->status == 'sending' || $email->status == 'paused'): ?>
+                                            <div class="tnp-data-title">Sent</div>
+                                            <div class="tnp-data-value"><?php echo $email->sent; ?> of <?php echo $email->total; ?></div>
+                                        <?php else: ?>
+                                            <div class="tnp-data-title">Total Sent</div>
+                                            <div class="tnp-data-value"><?php echo $email->sent; ?></div>
+                                        <?php endif; ?>
+                                    </div>
+                                    <!--
+                                    <div class="tnp-data">
+                                        <div class="tnp-data-title">Interactions</div>
+                                        <div class="tnp-data-value"><?php echo $open_count; ?> (<?php echo $module->percent($open_count, $total_count); ?>)</div>
+                                    </div>
+                                    -->
+
+                                </div>
+                                <div class="col-md-6">
+                                    <div class="tnp-data">
+                                        <div class="tnp-data-title">Opened</div>
+                                        <div class="tnp-data-value"><?php echo $open_count; ?> (<?php echo $module->percent($open_count, $total_count); ?>)</div>
+                                    </div>
+                                    <div class="tnp-data">
+                                        <div class="tnp-data-title">Clicked</div>
+                                        <div class="tnp-data-value"><?php echo $click_count; ?> (<?php echo $module->percent($click_count, $total_count); ?>)</div>
+                                    </div>
+                                </div>
+                            </div>
+
+                        </div>
+
+                    </div>
+                </div>
+
+                <div class="col-md-6">
+                    <div class="tnp-widget">
+                        <h3>World Map</h3>
+                        <div class="inside">
+                            <a href="https://www.thenewsletterplugin.com/premium?utm_source=plugin&utm_medium=link&utm_content=worldmap&utm_campaign=newsletter-reports" target="_blank">
+                                <img style="width: 100%" src="<?php echo plugins_url('newsletter') ?>/statistics/images/map.gif">
+                            </a>
+                        </div>
+                    </div>
+                </div>
+
+            </div><!-- row -->
+
+
+        </form>
+        
+        <?php } // if "new" ?>
+
+    </div>
+    <?php include NEWSLETTER_DIR . '/tnp-footer.php' ?>
+</div>