/**
* Generate the stats pixel.
*
* Looks something like:
* https://pixel.wp.com/g.gif?v=ext&j=1%3A3.9.1&blog=1234&post=5678&tz=-4&srv=example.com&host=example.com&ref=&rand=0.4107963021218808
*/
function jetpack_amp_build_stats_pixel_url()
{
global $wp_the_query;
if (function_exists('stats_build_view_data')) {
// added in https://github.com/Automattic/jetpack/pull/3445
$data = stats_build_view_data();
} else {
$blog = Jetpack_Options::get_option('id');
$tz = get_option('gmt_offset');
$v = 'ext';
$blog_url = parse_url(site_url());
$srv = $blog_url['host'];
$j = sprintf('%s:%s', JETPACK__API_VERSION, JETPACK__VERSION);
$post = $wp_the_query->get_queried_object_id();
$data = compact('v', 'j', 'blog', 'post', 'tz', 'srv');
}
$data['host'] = rawurlencode($_SERVER['HTTP_HOST']);
$data['rand'] = 'RANDOM';
// amp placeholder
$data['ref'] = 'DOCUMENT_REFERRER';
// amp placeholder
$data = array_map('rawurlencode', $data);
return add_query_arg($data, 'https://pixel.wp.com/g.gif');
}
function stats_template_redirect()
{
global $current_user, $stats_footer;
if (is_feed() || is_robots() || is_trackback() || is_preview()) {
return;
}
// Should we be counting this user's views?
if (!empty($current_user->ID)) {
$count_roles = stats_get_option('count_roles');
if (!array_intersect($current_user->roles, $count_roles)) {
return;
}
}
add_action('wp_footer', 'stats_footer', 101);
add_action('wp_head', 'stats_add_shutdown_action');
$script = set_url_scheme('//stats.wp.com/e-' . gmdate('YW') . '.js');
$data = stats_build_view_data();
$data_stats_array = stats_array($data);
$stats_footer = <<<END
<script type='text/javascript' src='{$script}' async defer></script>
<script type='text/javascript'>
\t_stq = window._stq || [];
\t_stq.push([ 'view', {{$data_stats_array}} ]);
\t_stq.push([ 'clickTrackerInit', '{$data['blog']}', '{$data['post']}' ]);
</script>
END;
}
