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| 1 | <?php |
| 2 | /** |
| 3 | * Stats Main |
| 4 | * |
| 5 | * @package automattic/jetpack-stats |
| 6 | */ |
| 7 | |
| 8 | namespace Automattic\Jetpack\Stats; |
| 9 | |
| 10 | use Automattic\Jetpack\Connection\Manager as Connection_Manager; |
| 11 | use Automattic\Jetpack\Constants; |
| 12 | use Automattic\Jetpack\Modules; |
| 13 | use Automattic\Jetpack\Stats\Abilities\Stats_Abilities; |
| 14 | use Automattic\Jetpack\Status; |
| 15 | use Automattic\Jetpack\Status\Visitor; |
| 16 | use WP_User; |
| 17 | |
| 18 | /** |
| 19 | * Stats Main class. |
| 20 | * |
| 21 | * Entrypoint for Stats. |
| 22 | * |
| 23 | * @since 0.1.0 |
| 24 | */ |
| 25 | class Main { |
| 26 | /** |
| 27 | * Stats version. |
| 28 | * Mostly needed for backwards compatibility. |
| 29 | */ |
| 30 | const STATS_VERSION = '9'; |
| 31 | |
| 32 | /** |
| 33 | * Singleton Main instance. |
| 34 | * |
| 35 | * @var Main |
| 36 | **/ |
| 37 | private static $instance = null; |
| 38 | |
| 39 | /** |
| 40 | * Initializer. |
| 41 | * Used to configure the stats package, eg when called via the Config package. |
| 42 | * |
| 43 | * @return object |
| 44 | */ |
| 45 | public static function init() { |
| 46 | if ( null === self::$instance ) { |
| 47 | self::$instance = new Main(); |
| 48 | } |
| 49 | |
| 50 | return self::$instance; |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * Class constructor. |
| 55 | * |
| 56 | * @return void |
| 57 | */ |
| 58 | private function __construct() { |
| 59 | /** |
| 60 | * This avoids conflicts when running Stats package with older versions of the Jetpack plugin. |
| 61 | * |
| 62 | * On JP version 11.5-a.2 the hooks below were removed from the Jetpack plugin and it is safe |
| 63 | * to register them in the Stats package. |
| 64 | */ |
| 65 | $jp_plugin_version = Constants::get_constant( 'JETPACK__VERSION' ); |
| 66 | if ( $jp_plugin_version && version_compare( $jp_plugin_version, '11.5-a.2', '<' ) ) { |
| 67 | return; |
| 68 | } |
| 69 | // Generate the tracking code after wp() has queried for posts. |
| 70 | add_action( 'template_redirect', array( __CLASS__, 'template_redirect' ), 1 ); |
| 71 | |
| 72 | add_action( 'wp_head', array( __CLASS__, 'hide_smile_css' ) ); |
| 73 | add_action( 'embed_head', array( __CLASS__, 'hide_smile_css' ) ); |
| 74 | |
| 75 | // Map stats caps. |
| 76 | add_filter( 'map_meta_cap', array( __CLASS__, 'map_meta_caps' ), 10, 3 ); |
| 77 | |
| 78 | XMLRPC_Provider::init(); |
| 79 | REST_Provider::init(); |
| 80 | Transient_Cleanup::init(); |
| 81 | |
| 82 | // Clean up transient cron on module deactivation. |
| 83 | add_action( 'jetpack_deactivate_module_stats', array( Transient_Cleanup::class, 'unschedule_cleanup' ) ); |
| 84 | |
| 85 | // Set up package version hook. |
| 86 | add_filter( 'jetpack_package_versions', __NAMESPACE__ . '\Package_Version::send_package_version_to_tracker' ); |
| 87 | |
| 88 | // Register WP Abilities API surface. Gated behind the |
| 89 | // `jetpack_wp_abilities_enabled` filter inside Registrar::init(), |
| 90 | // which defaults to false — so this call is safe to make unconditionally |
| 91 | // and still opt-in per-site until the flag is flipped. |
| 92 | Stats_Abilities::init(); |
| 93 | } |
| 94 | |
| 95 | /** |
| 96 | * Checks if filter is set and dnt is enabled. |
| 97 | * |
| 98 | * @return bool |
| 99 | */ |
| 100 | public static function jetpack_is_dnt_enabled() { |
| 101 | /** |
| 102 | * Filter the option which decides honor DNT or not. |
| 103 | * |
| 104 | * @module stats |
| 105 | * @since-jetpack 6.1.0 |
| 106 | * |
| 107 | * @param bool false Honors DNT for clients who don't want to be tracked. Defaults to false. Set to true to enable. |
| 108 | */ |
| 109 | if ( false === apply_filters( 'jetpack_honor_dnt_header_for_stats', false ) ) { |
| 110 | return false; |
| 111 | } |
| 112 | |
| 113 | foreach ( $_SERVER as $name => $value ) { |
| 114 | if ( 'http_dnt' === strtolower( $name ) && 1 === (int) $value ) { |
| 115 | return true; |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | return false; |
| 120 | } |
| 121 | |
| 122 | /** |
| 123 | * Maps view_stats cap to read cap as needed. |
| 124 | * |
| 125 | * @access public |
| 126 | * @param mixed $caps Caps. |
| 127 | * @param mixed $cap Cap. |
| 128 | * @param mixed $user_id User ID. |
| 129 | * @return array Possibly mapped capabilities for meta capability. |
| 130 | */ |
| 131 | public static function map_meta_caps( $caps, $cap, $user_id ) { |
| 132 | // Map view_stats to exists. |
| 133 | if ( 'view_stats' === $cap ) { |
| 134 | $user = new WP_User( $user_id ); |
| 135 | // WordPress 6.9 introduced lazy-loading of some WP_User properties, including `roles`. |
| 136 | // It also made said properties protected, so we can't modify keys directly. |
| 137 | $user_roles = $user->roles; |
| 138 | $user_role = array_shift( $user_roles ); // Work with the copy |
| 139 | $stats_roles = Options::get_option( 'roles' ); |
| 140 | |
| 141 | // Is the users role in the available stats roles? |
| 142 | if ( is_array( $stats_roles ) && in_array( $user_role, $stats_roles, true ) ) { |
| 143 | $caps = array( 'read' ); |
| 144 | } |
| 145 | } |
| 146 | |
| 147 | return $caps; |
| 148 | } |
| 149 | |
| 150 | /** |
| 151 | * Stats Template Redirect. |
| 152 | * |
| 153 | * @access public |
| 154 | * @return void |
| 155 | */ |
| 156 | public static function template_redirect() { |
| 157 | if ( ! self::should_track() ) { |
| 158 | return; |
| 159 | } |
| 160 | |
| 161 | add_action( 'wp_enqueue_scripts', array( Tracking_Pixel::class, 'enqueue_stats_script' ), 101 ); |
| 162 | add_action( 'wp_footer', array( Tracking_Pixel::class, 'add_amp_pixel' ), 101 ); |
| 163 | add_action( 'web_stories_print_analytics', array( Tracking_Pixel::class, 'add_amp_pixel' ), 101 ); |
| 164 | } |
| 165 | |
| 166 | /** |
| 167 | * CSS to hide the tracking pixel smiley. |
| 168 | * It is now hidden for everyone (used to be visible if you had set the hide_smile option). |
| 169 | * |
| 170 | * @access public |
| 171 | * @return void |
| 172 | */ |
| 173 | public static function hide_smile_css() { |
| 174 | if ( ! self::should_track() ) { |
| 175 | return; |
| 176 | } |
| 177 | ?> |
| 178 | <style>img#wpstats{display:none}</style> |
| 179 | <?php |
| 180 | } |
| 181 | |
| 182 | /** |
| 183 | * Whether we should add the tracking pixel. |
| 184 | * |
| 185 | * @return bool |
| 186 | */ |
| 187 | public static function should_track() { |
| 188 | global $current_user; |
| 189 | |
| 190 | // Not connected sites should not generate tracking stats. |
| 191 | if ( ! ( new Connection_Manager() )->is_connected() ) { |
| 192 | return false; |
| 193 | } |
| 194 | |
| 195 | // If the stats module is disabled we should not generate tracking stats. |
| 196 | if ( ! ( new Modules() )->is_active( 'stats' ) ) { |
| 197 | return false; |
| 198 | } |
| 199 | |
| 200 | // Do not generate tracking stats for feeds, robots, embeds, previews |
| 201 | // or to honour the DNT headers. |
| 202 | if ( |
| 203 | is_feed() |
| 204 | || is_robots() |
| 205 | || is_embed() |
| 206 | || is_trackback() |
| 207 | || is_preview() |
| 208 | || self::jetpack_is_dnt_enabled() |
| 209 | ) { |
| 210 | return false; |
| 211 | } |
| 212 | |
| 213 | // Sites in Safe Mode should not generate tracking stats. |
| 214 | $status = new Status(); |
| 215 | if ( $status->in_safe_mode() ) { |
| 216 | return false; |
| 217 | } |
| 218 | |
| 219 | // Should we be counting this user's views? |
| 220 | if ( ! empty( $current_user->ID ) ) { |
| 221 | $count_roles = Options::get_option( 'count_roles' ); |
| 222 | if ( ! is_array( $count_roles ) || ! array_intersect( $current_user->roles, $count_roles ) ) { |
| 223 | return false; |
| 224 | } |
| 225 | } |
| 226 | |
| 227 | /** |
| 228 | * Allow excluding specific IP addresses from being tracked in Stats. |
| 229 | * Note: for this to work well, visitors' IP addresses must: |
| 230 | * - be stored and returned properly in IP address headers; |
| 231 | * - not be impacted by any caching setup on your site. |
| 232 | * |
| 233 | * @module stats |
| 234 | * |
| 235 | * @since-jetpack 10.6 |
| 236 | * |
| 237 | * @param array $excluded_ips An array of IP address strings to exclude from tracking. |
| 238 | */ |
| 239 | $excluded_ips = (array) apply_filters( 'jetpack_stats_excluded_ips', array() ); |
| 240 | |
| 241 | // Should we be counting views for this IP address? |
| 242 | $current_user_ip = ( new Visitor() )->get_ip( true ); |
| 243 | if ( |
| 244 | ! empty( $excluded_ips ) |
| 245 | && in_array( $current_user_ip, $excluded_ips, true ) |
| 246 | ) { |
| 247 | return false; |
| 248 | } |
| 249 | |
| 250 | return true; |
| 251 | } |
| 252 | } |