get_active_container_id();
if ( ! $container_id || $this->should_exclude_current_user() ) {
return;
}
// Built from the same source the admin UI displays, so what we show the
// user is byte-for-byte what is injected. The dynamic id is escaped inside
// head_snippet(); the rest is a static, trusted template.
echo self::head_snippet( $container_id ) . "\n"; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
}
public function inject_body_snippet(): void {
$container_id = $this->get_active_container_id();
if ( ! $container_id || $this->should_exclude_current_user() ) {
return;
}
echo self::body_snippet( $container_id ) . "\n"; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
$this->body_snippet_injected = true;
}
/**
* The exact `` GTM loader snippet Adbot injects for a container.
* Single source of truth shared by the injector and the REST/admin UI so the
* code shown to the user always matches what is on the page.
*/
public static function head_snippet( string $container_id ): string {
return "\n"
. '\n"
. '';
}
/**
* The exact `` (noscript) GTM snippet Adbot injects for a container.
*/
public static function body_snippet( string $container_id ): string {
return "\n"
. '' . "\n"
. '';
}
public function inject_body_snippet_fallback(): void {
if ( $this->body_snippet_injected ) {
return;
}
$this->inject_body_snippet();
}
private function get_active_container_id(): ?string {
if ( ! get_option( 'adbot_snippet_active' ) ) {
return null;
}
// A matching snippet from the theme / another plugin is already on the
// site — never add a second copy (it would double-fire every tag).
if ( get_option( 'adbot_snippet_external_detected' ) ) {
return null;
}
$container_id = get_option( 'adbot_snippet_container_id' );
if ( ! $container_id || ! preg_match( '/^GTM-[A-Z0-9]+$/', $container_id ) ) {
return null;
}
return $container_id;
}
private function should_exclude_current_user(): bool {
$settings = get_option( 'adbot_settings', [] );
if ( ! empty( $settings['exclude_admins'] ) && current_user_can( 'manage_options' ) ) {
return true;
}
return false;
}
}