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<?php
/**
* Output class.
*
* @since 1.0.0
*
* @package OMAPI
* @author Thomas Griffin
*/
// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Output class.
*
* @since 1.0.0
*/
class OMAPI_Output {
/**
* Holds the class object.
*
* @since 1.0.0
*
* @var object
*/
public static $instance;
/**
* Path to the file.
*
* @since 1.0.0
*
* @var string
*/
public $file = __FILE__;
/**
* Holds the base class object.
*
* @since 1.0.0
*
* @var object
*/
public $base;
/**
* Holds the meta fields used for checking output statuses.
*
* @since 1.0.0
*
* @var array
*/
public $fields = array();
/**
* Flag for determining if localized JS variable is output.
*
* @since 1.0.0
*
* @var bool
*/
public $localized = false;
/**
* Flag for determining if localized JS variable is output.
*
* @since 1.0.0
*
* @var bool
*/
public $data_output = false;
/**
* Holds JS slugs for maybe parsing shortcodes.
*
* @since 1.0.0
*
* @var array
*/
public $slugs = array();
/**
* Holds shortcode output.
*
* @since 1.0.0
*
* @var array
*/
public $shortcodes = array();
/**
* Whether we are in a live campaign preview.
*
* @since 2.2.0
*
* @var boolean
*/
protected static $live_preview = false;
/**
* Whether we are in a live campaign rules preview.
*
* @since 2.2.0
*
* @var boolean
*/
protected static $live_rules_preview = false;
/**
* Whether we are in a site verification request.
*
* @since 2.2.0
*
* @var boolean
*/
protected static $site_verification = false;
/**
* Primary class constructor.
*
* @since 1.0.0
*/
public function __construct() {
// Set our object.
$this->set();
add_filter( 'optinmonster_pre_campaign_should_output', array( $this, 'enqueue_helper_js_if_applicable' ), 999, 2 );
// If no credentials have been provided, do nothing.
if ( ! $this->base->get_api_credentials() ) {
return;
}
// Add the hook to allow OptinMonster to process.
add_action( 'pre_get_posts', array( $this, 'load_optinmonster_inline' ), 9999 );
add_action( 'wp', array( $this, 'maybe_load_optinmonster' ), 9999 );
}
/**
* Sets our object instance and base class instance.
*
* @since 1.0.0
*/
public function set() {
self::$instance = $this;
$this->base = OMAPI::get_instance();
$rules = new OMAPI_Rules();
// Keep these around for back-compat.
$this->fields = $rules->fields;
// phpcs:disable WordPress.Security.NonceVerification.Recommended
self::$live_preview = ! empty( $_GET['om-live-preview'] )
? $_GET['om-live-preview']
: false;
self::$live_rules_preview = ! empty( $_GET['om-live-rules-preview'] )
? $_GET['om-live-rules-preview']
: false;
self::$site_verification = ! empty( $_GET['om-verify-site'] )
? $_GET['om-verify-site']
: false;
// phpcs:enable
}
/**
* Conditionally loads the OptinMonster optin based on the query filter detection.
*
* @since 1.0.0
*/
public function maybe_load_optinmonster() {
// Checking if AMP is enabled.
if ( OMAPI_Utils::is_amp_enabled() ) {
return;
}
// Load actions and filters.
add_action( 'wp_enqueue_scripts', array( $this, 'api_script' ) );
add_action( 'wp_footer', array( $this, 'localize' ), 9999 );
add_action( 'wp_footer', array( $this, 'display_rules_data' ), 9999 );
add_action( 'wp_footer', array( $this, 'maybe_parse_shortcodes' ), 11 );
// Add the hook to allow OptinMonster to process.
add_action( 'wp_footer', array( $this, 'load_optinmonster' ) );
if ( self::$live_preview || self::$live_rules_preview ) {
add_filter( 'optin_monster_api_final_output', array( $this, 'load_previews' ), 10, 2 );
add_filter( 'optin_monster_api_empty_output', array( $this, 'load_previews' ), 10, 2 );
}
if ( self::$live_preview || self::$site_verification ) {
add_action( 'wp_footer', array( $this, 'load_global_optinmonster' ) );
}
}
/**
* Enqueues the OptinMonster API script.
*
* @since 1.0.0
*/
public function api_script() {
// A hook to change the API location. Using this hook, we can force to load in header; default location is footer.
$in_footer = apply_filters( 'optin_monster_api_loading_location', true );
wp_enqueue_script(
$this->base->plugin_slug . '-api-script',
OMAPI_Urls::om_api(),
array(),
$this->base->asset_version(),
$in_footer
);
if ( version_compare( get_bloginfo( 'version' ), '4.1.0', '>=' ) ) {
add_filter( 'script_loader_tag', array( $this, 'filter_api_script' ), 10, 2 );
} else {
add_filter( 'clean_url', array( $this, 'filter_api_url' ) );
}
}
/**
* Filters the API script tag to output the JS version embed and to add a custom ID.
*
* @since 1.0.0
*
* @param string $tag The HTML script output.
* @param string $handle The script handle to target.
* @return string $tag Amended HTML script with our ID attribute appended.
*/
public function filter_api_script( $tag, $handle ) {
// If the handle is not ours, do nothing.
if ( $this->base->plugin_slug . '-api-script' !== $handle ) {
return $tag;
}
// Adjust the output to the JS version embed and to add our custom script ID.
return $this->om_script_tag(
array(
'id' => 'omapi-script',
)
);
}
/**
* Filters the API script tag to add a custom ID.
*
* @since 1.0.0
*
* @param string $url The URL to filter.
* @return string $url Amended URL with our ID attribute appended.
*/
public function filter_api_url( $url ) {
// If the handle is not ours, do nothing.
if ( false === strpos( $url, str_replace( 'https://', '', OMAPI_Urls::om_api() ) ) ) {
return $url;
}
// Adjust the URL to add our custom script ID.
return "$url' async='async' id='omapi-script";
}
/**
* Loads an inline optin form (sidebar and after post) by checking against the current query.
*
* @since 1.0.0
*
* @param object $query The current main WP query object.
*/
public function load_optinmonster_inline( $query ) {
// If we are not on the main query or if in an rss feed, do nothing.
if ( ! $query->is_main_query() || $query->is_feed() ) {
return;
}
$priority = apply_filters( 'optin_monster_post_priority', 999 ); // Deprecated.
$priority = apply_filters( 'optin_monster_api_post_priority', 999 );
add_filter( 'the_content', array( $this, 'load_optinmonster_inline_content' ), $priority );
}
/**
* Filters the content to output a campaign form.
*
* @since 1.0.0
*
* @param string $content The current HTML string of main content.
* @return string $content Amended content with possibly a campaign.
*/
public function load_optinmonster_inline_content( $content ) {
global $post;
// Checking if AMP is enabled.
if ( OMAPI_Utils::is_amp_enabled() ) {
return $content;
}
// If the global $post is not set or the post status is not published, return early.
if ( empty( $post ) || isset( $post->ID ) && 'publish' !== get_post_status( $post->ID ) ) {
return $content;
}
// Don't do anything for excerpts.
// This prevents the optin accidentally being output when get_the_excerpt() or wp_trim_excerpt() is
// called by a theme or plugin, and there is no excerpt, meaning they call the_content and break us.
if ( in_array( current_filter(), array( 'get_the_excerpt', 'wp_trim_excerpt' ), true ) ) {
return $content;
}
// Prepare variables.
$post_id = self::current_id();
$optins = $this->base->get_optins();
// If no optins are found, return early.
if ( empty( $optins ) ) {
return $content;
}
// Loop through each optin and optionally output it on the site.
foreach ( $optins as $optin ) {
if ( OMAPI_Rules::check_inline( $optin, $post_id, true ) ) {
$this->set_slug( $optin );
// Prepare the optin campaign.
$prepared = $this->prepare_campaign( $optin );
$position = get_post_meta( $optin->ID, '_omapi_auto_location', true );
$inserter = new OMAPI_Inserter( $content, $prepared );
switch ( $position ) {
case 'paragraphs':
$paragraphs = get_post_meta( $optin->ID, '_omapi_auto_location_paragraphs', true );
$content = $inserter->after_paragraph( absint( $paragraphs ) );
break;
case 'words':
$words = get_post_meta( $optin->ID, '_omapi_auto_location_words', true );
$content = $inserter->after_words( absint( $words ) );
break;
case 'above_post':
$content = $inserter->prepend();
break;
case 'below_post':
default:
$content = $inserter->append();
break;
}
}
}
// Return the content.
return $content;
}
/**
* Possibly loads a campaign on a page.
*
* @since 1.0.0
*/
public function load_optinmonster() {
$post_id = self::current_id();
$prevented = is_singular() && $post_id && get_post_meta( $post_id, 'om_disable_all_campaigns', true );
if ( $prevented ) {
add_action( 'wp_footer', array( $this, 'prevent_all_campaigns' ), 11 );
}
$optins = $prevented ? array() : $this->base->get_optins();
$campaigns = array();
if ( empty( $optins ) ) {
// If no optins are found, send through filter to potentially add preview data.
$campaigns = apply_filters( 'optin_monster_api_empty_output', $campaigns, $post_id );
} else {
// Loop through each optin and optionally output it on the site.
foreach ( $optins as $campaign ) {
$rules = new OMAPI_Rules( $campaign, $post_id );
if ( $rules->should_output() ) {
$this->set_slug( $campaign );
// Prepare the optin campaign.
$campaigns[ $campaign->post_name ] = $this->prepare_campaign( $campaign );
continue;
}
$fields = $rules->field_values;
// Allow devs to filter the final output for more granular control over optin targeting.
// Devs should return the value for the slug key as false if the conditions are not met.
$campaigns = apply_filters( 'optinmonster_output', $campaigns ); // Deprecated.
$campaigns = apply_filters( 'optin_monster_output', $campaigns, $campaign, $fields, $post_id ); // Deprecated.
$campaigns = apply_filters( 'optin_monster_api_output', $campaigns, $campaign, $fields, $post_id );
}
// Run a final filter for all items.
$campaigns = apply_filters( 'optin_monster_api_final_output', $campaigns, $post_id );
}
// If the init code is empty, do nothing.
if ( empty( $campaigns ) ) {
return;
}
// Load the optins.
foreach ( (array) $campaigns as $campaign ) {
if ( $campaign ) {
echo $campaign; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
}
}
$is_preview = apply_filters(
'optin_monster_should_set_campaigns_as_preview',
is_preview() || is_customize_preview()
);
if ( $is_preview ) {
remove_action( 'wp_footer', array( $this, 'prevent_all_campaigns' ), 11 );
add_action( 'wp_footer', array( $this, 'set_campaigns_as_preview' ), 99 );
}
}
/**
* Possibly loads a campaign preview on a page.
*
* @since 2.2.0
*
* @param array $campaigns Array of campaign objects to output.
* @param int $post_id The current post id.
*
* @return array Array of campaign objects to output.
*/
public function load_previews( $campaigns, $post_id ) {
if ( self::$live_preview || self::$live_rules_preview ) {
$campaign_id = sanitize_text_field( self::$live_preview ? self::$live_preview : self::$live_rules_preview );
$embed = $this->om_script_tag(
array(
'id' => 'omapi-script-preview-' . $campaign_id,
'campaignId' => $campaign_id,
'userId' => $this->base->get_option( 'userId' ),
)
);
$embed = apply_filters( 'optin_monster_api_preview_output', $embed, $campaign_id, $post_id );
$this->set_preview_slug( $campaign_id );
$campaigns[ $campaign_id ] = $embed;
}
return $campaigns;
}
/**
* Loads the global OM code on this page.
*
* @since 1.8.0
*/
public function load_global_optinmonster() {
$option = $this->base->get_option();
// If we don't have the data we need, return early.
if ( empty( $option['userId'] ) || empty( $option['accountId'] ) ) {
return;
}
$option['id'] = 'omapi-script-global';
echo $this->om_script_tag( $option ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
}
/**
* Sets the slug for possibly parsing shortcodes.
*
* @since 1.0.0
*
* @param object $optin The optin object.
*/
public function set_slug( $optin ) {
$slug = str_replace( '-', '_', $optin->post_name );
// Set the slug.
$this->slugs[ $slug ] = array(
'slug' => $slug,
'mailpoet' => ! empty( $optin->ID ) && (bool) get_post_meta( $optin->ID, '_omapi_mailpoet', true ),
);
// Maybe set shortcode.
if ( ! empty( $optin->ID ) && get_post_meta( $optin->ID, '_omapi_shortcode', true ) ) {
$this->shortcodes[] = get_post_meta( $optin->ID, '_omapi_shortcode_output', true );
}
if ( ! empty( $this->slugs[ $slug ]['mailpoet'] ) ) {
$this->wp_mailpoet();
}
return $this;
}
/**
* Sets the preview slug for possibly parsing shortcodes.
*
* @since 2.2.0
*
* @param object $slug The campaign Id slug.
*/
public function set_preview_slug( $slug ) {
$optin = $this->base->get_optin_by_slug( $slug );
if ( empty( $optin ) ) {
$optin = (object) array(
'post_name' => $slug,
'ID' => 0,
);
}
$this->set_slug( $optin );
// Request the shortcodes from the campaign preview object.
$user_id = $this->base->get_option( 'userId' );
$route = "embed/{$user_id}/{$slug}/preview/shortcodes";
$body = OMAPI_Api::build( 'v2', $route, 'GET' )->request();
if ( ! empty( $body->{$slug} ) ) {
$this->shortcodes[] = OMAPI_Save::get_shortcodes_string( $body->{$slug} );
}
return $this;
}
/**
* Maybe outputs the JS variables to parse shortcodes.
*
* @since 1.0.0
*/
public function maybe_parse_shortcodes() {
// If no slugs have been set, do nothing.
if ( empty( $this->slugs ) ) {
return;
}
// Loop through any shortcodes and output them.
foreach ( $this->shortcodes as $shortcode_string ) {
if ( empty( $shortcode_string ) ) {
continue;
}
if ( strpos( $shortcode_string, '|||' ) !== false ) {
$all_shortcode = explode( '|||', $shortcode_string );
} else { // Backwards compat.
$all_shortcode = explode( ',', $shortcode_string );
}
foreach ( $all_shortcode as $shortcode ) {
if ( empty( $shortcode ) ) {
continue;
}
echo '<div style="position:absolute;overflow:hidden;clip:rect(0 0 0 0);height:1px;width:1px;margin:-1px;padding:0;border:0">';
echo '<div class="omapi-shortcode-helper">' . html_entity_decode( $shortcode, ENT_COMPAT, 'UTF-8' ) . '</div>'; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
echo '<div class="omapi-shortcode-parsed omapi-encoded">' . htmlentities( do_shortcode( html_entity_decode( $shortcode, ENT_COMPAT, 'UTF-8' ) ), ENT_COMPAT, 'UTF-8' ) . '</div>'; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
echo '</div>';
}
}
// Output the JS variables to signify shortcode parsing is needed.
?>
<script type="text/javascript">
<?php
foreach ( $this->slugs as $slug => $data ) {
echo 'var ' . $slug . '_shortcode = true;'; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
}
?>
</script>
<?php
}
/**
* Sets all OM campaigns to preview mode, which disables their form fields.
*
* @since 2.2.0
*/
public function set_campaigns_as_preview() {
?>
<script type="text/javascript">
// Disable OM analytics.
window._omdisabletracking = true;
document.addEventListener('om.Optin.init', function(evt) {
// Disables form submission.
evt.detail.Optin.preview = true;
} );
</script>
<?php
}
/**
* Prevents any OM campaigns from loading if we're on a singular post
* with the `om_disable_all_campaigns` meta set.
*
* @since 2.3.0
*/
public function prevent_all_campaigns() {
?>
<script type="text/javascript">
document.addEventListener('om.Shutdown.init', function(evt) {
evt.detail.Shutdown.preventAll = true;
});
</script>
<?php
}
/**
* Possibly localizes a JS variable for output use.
*
* @since 1.0.0
*/
public function localize() {
// If no slugs have been set, do nothing.
if ( empty( $this->slugs ) ) {
return;
}
// If already localized, do nothing.
if ( $this->localized ) {
return;
}
// Set flag to true.
$this->localized = true;
$slugs = function_exists( 'wp_json_encode' )
? wp_json_encode( $this->slugs )
: json_encode( $this->slugs ); // phpcs:ignore WordPress.WP.AlternativeFunctions.json_encode_json_encode
// Output JS variable.
?>
<script type="text/javascript">var omapi_localized = { ajax: '<?php echo esc_url_raw( add_query_arg( 'optin-monster-ajax-route', true, admin_url( 'admin-ajax.php' ) ) ); ?>', nonce: '<?php echo wp_create_nonce( 'omapi' ); ?>', slugs: <?php echo $slugs; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?> };</script>
<?php
}
/**
* Enqueues the WP mailpoet script for storing local optins.
*
* @since 1.8.2
*/
public function wp_mailpoet() {
// Only try to use the MailPoet integration if it is active.
if ( $this->base->is_mailpoet_active() ) {
wp_enqueue_script(
$this->base->plugin_slug . '-wp-mailpoet',
$this->base->url . 'assets/js/mailpoet.js',
array( 'jquery' ),
$this->base->asset_version(),
true
);
}
}
/**
* Enqueues the WP helper script for the API.
*
* @since 1.0.0
*/
public function wp_helper() {
wp_enqueue_script(
$this->base->plugin_slug . '-wp-helper',
$this->base->url . 'assets/js/helper.js',
array(),
$this->base->asset_version(),
true
);
}
/**
* Outputs a JS variable, in the footer of the site, with information about
* the current page, and the terms in use for the display rules.
*
* @since 1.6.5
*
* @return void
*/
public function display_rules_data() {
global $wp_query;
// If already localized, do nothing.
if ( $this->data_output ) {
return;
}
// Set flag to true.
$this->data_output = true;
$tax_terms = array();
$object = get_queried_object();
$object_id = self::current_id();
$object_class = is_object( $object ) ? get_class( $object ) : '';
$object_type = '';
$object_key = '';
$post = null;
if ( 'WP_Post' === $object_class ) {
$post = $object;
$object_type = 'post';
$object_key = $object->post_type;
} elseif ( 'WP_Term' === $object_class ) {
$object_type = 'term';
$object_key = $object->taxonomy;
}
// Get the current object's terms, if applicable. Defaults to public taxonomies only.
if ( ! empty( $post->ID ) && is_singular() || ( $wp_query->is_category() || $wp_query->is_tag() || $wp_query->is_tax() ) ) {
// Should we only check public taxonomies?
$only_public = apply_filters( 'optinmonster_only_check_public_taxonomies', true, $post );
$taxonomies = get_object_taxonomies( $post, false );
if ( ! empty( $taxonomies ) && is_array( $taxonomies ) ) {
foreach ( $taxonomies as $taxonomy ) {
// Private ones should remain private and not output in the JSON blob.
if ( $only_public && ! $taxonomy->public ) {
continue;
}
$terms = get_the_terms( $post, $taxonomy->name );
if ( ! empty( $terms ) && is_array( $terms ) ) {
$tax_terms = array_merge( $tax_terms, wp_list_pluck( $terms, 'term_id' ) );
}
}
$tax_terms = wp_parse_id_list( $tax_terms );
}
}
$output = array(
'wc_cart' => $this->woocommerce_cart(),
'object_id' => $object_id,
'object_key' => $object_key,
'object_type' => $object_type,
'term_ids' => $tax_terms,
);
$output = function_exists( 'wp_json_encode' )
? wp_json_encode( $output )
: json_encode( $output ); // phpcs:ignore WordPress.WP.AlternativeFunctions.json_encode_json_encode
// Output JS variable.
// phpcs:ignore XSS
?>
<script type="text/javascript">var omapi_data = <?php echo $output; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?>;</script>
<?php
}
/**
* Prepare the optin campaign html.
*
* @since 1.5.0
*
* @param object $optin The option post object.
*
* @return string The optin campaign html.
*/
public function prepare_campaign( $optin ) {
return isset( $optin->post_content ) && ! empty( $optin->post_content )
? trim( html_entity_decode( stripslashes( $optin->post_content ), ENT_QUOTES, 'UTF-8' ), '\'' )
: '';
}
/**
* Enqueues the WP helper script if relevant optin fields are found.
*
* @since 1.5.0
*
* @param bool $should_output Whether it should output.
* @param OMAPI_Rules $rules OMAPI_Rules object.
*
* @return array
*/
public function enqueue_helper_js_if_applicable( $should_output, $rules ) {
// Check to see if we need to load the WP API helper script.
if ( $should_output ) {
if ( ! $rules->field_empty( 'mailpoet' ) ) {
$this->wp_mailpoet();
}
$this->wp_helper();
}
return $should_output;
}
/**
* Get the current page/post's post id.
*
* @since 1.6.9
*
* @return int
*/
public static function current_id() {
$object = get_queried_object();
if ( is_object( $object ) && ! $object instanceof WP_Post ) {
return 0;
}
$post_id = get_queried_object_id();
if ( ! $post_id ) {
if ( 'page' === get_option( 'show_on_front' ) ) {
$post_id = get_option( 'page_for_posts' );
}
}
return $post_id;
}
/**
* AJAX callback for returning WooCommerce cart information.
*
* @since 1.7.0
*
* @return array An array of WooCommerce cart data.
*/
public function woocommerce_cart() {
// Bail if WooCommerce isn't currently active.
if ( ! OMAPI::is_woocommerce_active() ) {
return array();
}
// Check if WooCommerce is the minimum version.
if ( ! OMAPI_WooCommerce::is_minimum_version() ) {
return array();
}
// Bail if we don't have a cart object.
if ( ! isset( WC()->cart ) || '' === WC()->cart ) {
return array();
}
// Calculate the cart totals.
WC()->cart->calculate_totals();
// Get initial cart data.
$cart = WC()->cart->get_totals();
$cart['cart_items'] = WC()->cart->get_cart();
// Set the currency data.
$currencies = get_woocommerce_currencies();
$currency_code = get_woocommerce_currency();
$cart['currency'] = array(
'code' => $currency_code,
'symbol' => get_woocommerce_currency_symbol( $currency_code ),
'name' => isset( $currencies[ $currency_code ] ) ? $currencies[ $currency_code ] : '',
);
// Add in some extra data to the cart item.
foreach ( $cart['cart_items'] as $key => $item ) {
$item_details = array(
'type' => $item['data']->get_type(),
'sku' => $item['data']->get_sku(),
'categories' => $item['data']->get_category_ids(),
'tags' => $item['data']->get_tag_ids(),
'regular_price' => $item['data']->get_regular_price(),
'sale_price' => $item['data']->get_sale_price() ? $item['data']->get_sale_price() : $item['data']->get_regular_price(),
'virtual' => $item['data']->is_virtual(),
'downloadable' => $item['data']->is_downloadable(),
'sold_individually' => $item['data']->is_sold_individually(),
);
unset( $item['data'] );
$cart['cart_items'][ $key ] = array_merge( $item, $item_details );
}
// Send back a response.
return $cart;
}
/**
* Get the OptinMonster embed script JS.
*
* @since 1.9.8
*
* @param array $args Array of arguments for the script, including
* optional user id, account id, and script id.
*
* @return string The embed script JS.
*/
public function om_script_tag( $args = array() ) {
$src = esc_url_raw( OMAPI_Urls::om_api() );
$script_id = ! empty( $args['id'] )
? sprintf( 's.id="%s";', esc_attr( $args['id'] ) )
: '';
$campaign_or_account_id = ! empty( $args['accountId'] )
? sprintf( 's.dataset.account="%s";', esc_attr( $args['accountId'] ) )
: '';
if ( empty( $campaign_or_account_id ) && ! empty( $args['campaignId'] ) ) {
$campaign_or_account_id = sprintf( 's.dataset.campaign="%s";', esc_attr( $args['campaignId'] ) );
}
$user_id = ! empty( $args['userId'] )
? sprintf( 's.dataset.user="%s";', esc_attr( $args['userId'] ) )
: '';
$env = defined( 'OPTINMONSTER_ENV' )
? sprintf( 's.dataset.env="%s";', esc_attr( OPTINMONSTER_ENV ) )
: '';
$tag = '<script>';
$tag .= '(function(d){';
$tag .= 'var s=d.createElement("script");';
$tag .= 's.type="text/javascript";';
$tag .= 's.src="%1$s";';
$tag .= 's.async=true;';
$tag .= '%2$s';
$tag .= '%3$s';
$tag .= '%4$s';
$tag .= '%5$s';
$tag .= 'd.getElementsByTagName("head")[0].appendChild(s);';
$tag .= '})(document);';
$tag .= '</script>';
return sprintf(
$tag,
$src,
$script_id,
$campaign_or_account_id,
$user_id,
$env
);
}
}