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| 1 | <?php |
| 2 | /** |
| 3 | * Speed Score API endpoints. |
| 4 | * |
| 5 | * @package automattic/jetpack-boost-speed-score |
| 6 | */ |
| 7 | |
| 8 | namespace Automattic\Jetpack\Boost_Speed_Score; |
| 9 | |
| 10 | use Automattic\Jetpack\Boost_Core\Lib\Utils; |
| 11 | |
| 12 | if ( ! defined( 'JETPACK_BOOST_REST_NAMESPACE' ) ) { |
| 13 | define( 'JETPACK_BOOST_REST_NAMESPACE', 'jetpack-boost/v1' ); |
| 14 | } |
| 15 | |
| 16 | // For use in situations where you want additional namespacing. |
| 17 | if ( ! defined( 'JETPACK_BOOST_REST_PREFIX' ) ) { |
| 18 | define( 'JETPACK_BOOST_REST_PREFIX', '' ); |
| 19 | } |
| 20 | |
| 21 | /** |
| 22 | * Class Speed_Score |
| 23 | * |
| 24 | * @phan-constructor-used-for-side-effects |
| 25 | */ |
| 26 | class Speed_Score { |
| 27 | |
| 28 | const PACKAGE_VERSION = '0.4.18'; |
| 29 | |
| 30 | /** |
| 31 | * Array of module slugs that are currently active and can impact speed score. |
| 32 | * |
| 33 | * @var string[] |
| 34 | */ |
| 35 | protected $modules; |
| 36 | |
| 37 | /** |
| 38 | * A string representing the client making the request (e.g. 'boost-plugin', 'jetpack-dashboard', etc). |
| 39 | * |
| 40 | * @var string |
| 41 | */ |
| 42 | protected $client; |
| 43 | |
| 44 | /** |
| 45 | * Constructor. |
| 46 | * |
| 47 | * @param string[] $modules - Array of module slugs that are currently active and can impact speed score. |
| 48 | * @param string $client - A string representing the client making the request. |
| 49 | */ |
| 50 | public function __construct( $modules, $client ) { |
| 51 | /* |
| 52 | * Plugins using the old version of the package may pass an object instead of an array. Converting the |
| 53 | * object to an array keeps it backward compatible. We will lose the module slugs in case of an object, |
| 54 | * but it is better than a fatal error. |
| 55 | */ |
| 56 | if ( ! is_array( $modules ) ) { |
| 57 | $modules = array(); |
| 58 | } |
| 59 | |
| 60 | $this->modules = $modules; |
| 61 | $this->client = $client; |
| 62 | |
| 63 | add_action( 'rest_api_init', array( $this, 'register_rest_routes' ) ); |
| 64 | add_action( 'jetpack_boost_deactivate', array( $this, 'clear_speed_score_request_cache' ) ); |
| 65 | |
| 66 | /** |
| 67 | * Mark the speed score history as stale when the environment changes. |
| 68 | * |
| 69 | * @since 0.3.9 - This hook replaced `handle_environment_change` action. |
| 70 | * @since $$next-version - jetpack_boost_critical_css_environment_changed has been replaced by jetpack_boost_environment_changed. |
| 71 | */ |
| 72 | add_action( 'jetpack_boost_environment_changed', array( Speed_Score_History::class, 'mark_stale' ) ); |
| 73 | /** |
| 74 | * The `handle_environment_change` action is replaced by `jetpack_boost_environment_changed` in Jetpack Boost. |
| 75 | * Keeping the `handle_environment_change` action for backward compatibility. |
| 76 | */ |
| 77 | add_action( 'handle_environment_change', array( Speed_Score_History::class, 'mark_stale' ) ); |
| 78 | add_action( 'jetpack_boost_deactivate', array( Speed_Score_History::class, 'mark_stale' ) ); |
| 79 | } |
| 80 | |
| 81 | /** |
| 82 | * Register Speed Score related REST routes. |
| 83 | */ |
| 84 | public function register_rest_routes() { |
| 85 | register_rest_route( |
| 86 | JETPACK_BOOST_REST_NAMESPACE, |
| 87 | JETPACK_BOOST_REST_PREFIX . '/speed-scores', |
| 88 | array( |
| 89 | 'methods' => \WP_REST_Server::EDITABLE, |
| 90 | 'callback' => array( $this, 'fetch_speed_score' ), |
| 91 | 'permission_callback' => array( $this, 'can_access_speed_scores' ), |
| 92 | ) |
| 93 | ); |
| 94 | |
| 95 | register_rest_route( |
| 96 | JETPACK_BOOST_REST_NAMESPACE, |
| 97 | JETPACK_BOOST_REST_PREFIX . '/speed-scores/refresh', |
| 98 | array( |
| 99 | 'methods' => \WP_REST_Server::EDITABLE, |
| 100 | 'callback' => array( $this, 'dispatch_speed_score_request' ), |
| 101 | 'permission_callback' => array( $this, 'can_access_speed_scores' ), |
| 102 | ) |
| 103 | ); |
| 104 | |
| 105 | register_rest_route( |
| 106 | JETPACK_BOOST_REST_NAMESPACE, |
| 107 | JETPACK_BOOST_REST_PREFIX . '/speed-scores-history', |
| 108 | array( |
| 109 | 'methods' => \WP_REST_Server::EDITABLE, |
| 110 | 'callback' => array( $this, 'dispatch_speed_score_graph_history_request' ), |
| 111 | 'permission_callback' => array( $this, 'can_access_speed_scores' ), |
| 112 | 'args' => array( |
| 113 | 'start' => array( |
| 114 | 'required' => true, |
| 115 | 'type' => 'number', |
| 116 | ), |
| 117 | 'end' => array( |
| 118 | 'required' => true, |
| 119 | 'type' => 'number', |
| 120 | ), |
| 121 | ), |
| 122 | ) |
| 123 | ); |
| 124 | } |
| 125 | |
| 126 | /** |
| 127 | * Verify and normalize the URL argument for a request. |
| 128 | * |
| 129 | * @param \WP_REST_Request $request The request object. |
| 130 | * |
| 131 | * @return string|\WP_Error An error to return or the target url. |
| 132 | */ |
| 133 | private function process_url_arg( $request ) { |
| 134 | $params = $request->get_json_params(); |
| 135 | |
| 136 | if ( ! isset( $params['url'] ) ) { |
| 137 | return new \WP_Error( |
| 138 | 'invalid_parameter', |
| 139 | __( |
| 140 | 'The url parameter is required', |
| 141 | 'jetpack-boost-speed-score' |
| 142 | ), |
| 143 | array( 'status' => 400 ) |
| 144 | ); |
| 145 | } |
| 146 | |
| 147 | return Utils::force_url_to_absolute( $params['url'] ); |
| 148 | } |
| 149 | |
| 150 | /** |
| 151 | * Handler for POST /speed-scores/refresh. |
| 152 | * |
| 153 | * @param \WP_REST_Request $request The request object. |
| 154 | * |
| 155 | * @return \WP_REST_Response|\WP_Error The response. |
| 156 | */ |
| 157 | public function dispatch_speed_score_request( $request ) { |
| 158 | $url = $this->process_url_arg( $request ); |
| 159 | if ( is_wp_error( $url ) ) { |
| 160 | return $url; |
| 161 | } |
| 162 | |
| 163 | // Create and store the Speed Score request. |
| 164 | $score_request = new Speed_Score_Request( $url, $this->modules, null, 'pending', null, $this->client ); |
| 165 | $score_request->store( 1800 ); // Keep the request for 30 minutes even if no one access the results. |
| 166 | |
| 167 | // Send the request. |
| 168 | $score_request->execute(); |
| 169 | |
| 170 | $score_request_no_boost = $this->maybe_dispatch_no_boost_score_request( $url ); |
| 171 | |
| 172 | return $this->prepare_speed_score_response( $url, $score_request, $score_request_no_boost ); |
| 173 | } |
| 174 | |
| 175 | /** |
| 176 | * Handler for POST /speed-scores-history. |
| 177 | * |
| 178 | * @param \WP_REST_Request $request The request object. |
| 179 | * |
| 180 | * @return \WP_REST_Response|\WP_Error The response. |
| 181 | */ |
| 182 | public function dispatch_speed_score_graph_history_request( $request ) { |
| 183 | $score_history_request = new Speed_Score_Graph_History_Request( $request->get_param( 'start' ), $request->get_param( 'end' ), array() ); |
| 184 | // Send the request. |
| 185 | return $score_history_request->execute(); |
| 186 | } |
| 187 | |
| 188 | /** |
| 189 | * Remove the string "jb-disable-module" from array of strings. |
| 190 | * |
| 191 | * This is intended to be used by the filter `jetpack_boost_excluded_query_parameters` to allow `jb-disable-module` url parameter during score requests. |
| 192 | * |
| 193 | * @param string[] $params List of parameters to be removed from url. |
| 194 | * |
| 195 | * @return string[] Revised list of parameters to remove from url. |
| 196 | */ |
| 197 | public function allow_jb_disable_module( $params ) { |
| 198 | $index = array_search( 'jb-disable-modules', $params, true ); |
| 199 | unset( $params[ $index ] ); |
| 200 | |
| 201 | return $params; |
| 202 | } |
| 203 | |
| 204 | /** |
| 205 | * Handler for POST /speed-scores. |
| 206 | * |
| 207 | * @param \WP_REST_Request $request The request object. |
| 208 | * |
| 209 | * @return \WP_REST_Response|\WP_Error The response. |
| 210 | */ |
| 211 | public function fetch_speed_score( $request ) { |
| 212 | $url = $this->process_url_arg( $request ); |
| 213 | if ( is_wp_error( $url ) ) { |
| 214 | return $url; |
| 215 | } |
| 216 | |
| 217 | // Poll update if there is an ongoing request for scores with boost disabled. |
| 218 | $url_no_boost = $this->get_boost_modules_disabled_url( $url ); |
| 219 | $score_request_no_boost = $this->get_score_request_by_url( $url_no_boost ); |
| 220 | if ( $score_request_no_boost && $score_request_no_boost->is_pending() ) { |
| 221 | $response = $score_request_no_boost->poll_update(); |
| 222 | if ( is_wp_error( $response ) ) { |
| 223 | return $response; |
| 224 | } |
| 225 | } |
| 226 | |
| 227 | // Poll update if there is an ongoing request for scores with boost enabled. |
| 228 | $score_request = $this->get_score_request_by_url( $url ); |
| 229 | if ( $score_request && $score_request->is_pending() ) { |
| 230 | $response = $score_request->poll_update(); |
| 231 | if ( is_wp_error( $response ) ) { |
| 232 | return $response; |
| 233 | } |
| 234 | } |
| 235 | |
| 236 | // If this is a fresh install, there might not be any speed score history. In which case, we want to fetch the initial scores. |
| 237 | // While updating plugin from 1.2 -> 1.3, the history will be missing along with a non-pending score request due to data structure change. |
| 238 | $history = new Speed_Score_History( $url ); |
| 239 | if ( null === $history->latest_scores() && ( empty( $score_request ) || ! $score_request->is_pending() ) ) { |
| 240 | return $this->dispatch_speed_score_request( $request ); |
| 241 | } |
| 242 | |
| 243 | return $this->prepare_speed_score_response( $url, $score_request, $score_request_no_boost ); |
| 244 | } |
| 245 | |
| 246 | /** |
| 247 | * If it is time to fetch the score without boost, fetch it. |
| 248 | * |
| 249 | * @param string $url Url of the site. |
| 250 | * |
| 251 | * @return Speed_Score_Request |
| 252 | */ |
| 253 | private function maybe_dispatch_no_boost_score_request( $url ) { |
| 254 | |
| 255 | // Allow `jb-disable-module` URL param to fetch score without boost modules being active. |
| 256 | add_filter( 'jetpack_boost_excluded_query_parameters', array( $this, 'allow_jb_disable_module' ) ); |
| 257 | |
| 258 | $url_no_boost = $this->get_boost_modules_disabled_url( $url ); |
| 259 | |
| 260 | $history = new Speed_Score_History( $url_no_boost ); |
| 261 | $score_request = $this->get_score_request_by_url( $url_no_boost ); |
| 262 | if ( |
| 263 | // If there isn't already a pending request. |
| 264 | ( empty( $score_request ) || ! $score_request->is_pending() ) |
| 265 | && ! empty( $this->modules ) |
| 266 | && $history->is_stale() |
| 267 | ) { |
| 268 | $score_request = new Speed_Score_Request( $url_no_boost, array(), null, 'pending', null, $this->client ); // Dispatch a new speed score request to measure score without boost. |
| 269 | $score_request->store( 3600 ); // Keep the request for 1 hour even if no one access the results. The value is persisted for 1 hour in wp.com from initial request. |
| 270 | |
| 271 | // Send the request. |
| 272 | $score_request->execute(); |
| 273 | } |
| 274 | remove_filter( 'jetpack_boost_excluded_query_parameters', array( $this, 'allow_jb_disable_module' ) ); |
| 275 | |
| 276 | return $score_request; |
| 277 | } |
| 278 | |
| 279 | /** |
| 280 | * Get Speed_Score_Request instance by url. |
| 281 | * |
| 282 | * @param string $url Url to get the Speed_Score_Request instance for. |
| 283 | * |
| 284 | * @return Speed_Score_Request |
| 285 | */ |
| 286 | private function get_score_request_by_url( $url ) { |
| 287 | return Speed_Score_Request::get( |
| 288 | Speed_Score_Request::generate_cache_id_from_url( $url ) |
| 289 | ); |
| 290 | } |
| 291 | |
| 292 | /** |
| 293 | * Add query parameters to the url that would disable all boost modules. |
| 294 | * |
| 295 | * @param string $url The original URL we are measuring for score. |
| 296 | * |
| 297 | * @return string |
| 298 | */ |
| 299 | private function get_boost_modules_disabled_url( $url ) { |
| 300 | return add_query_arg( 'jb-disable-modules', 'all', $url ); |
| 301 | } |
| 302 | |
| 303 | /** |
| 304 | * Can the user access speed scores? |
| 305 | * |
| 306 | * @return bool |
| 307 | */ |
| 308 | public function can_access_speed_scores() { |
| 309 | return current_user_can( 'manage_options' ); |
| 310 | } |
| 311 | |
| 312 | /** |
| 313 | * Clear speed score request cache on jetpack_boost_deactivate action. |
| 314 | */ |
| 315 | public function clear_speed_score_request_cache() { |
| 316 | Speed_Score_Request::clear_cache(); |
| 317 | } |
| 318 | |
| 319 | /** |
| 320 | * Prepare the speed score response. |
| 321 | * |
| 322 | * @param string $url URL of the speed is requested for. |
| 323 | * @param Speed_Score_Request $score_request Speed score request. |
| 324 | * @param Speed_Score_Request $score_request_no_boost Speed score request without boost enabled. |
| 325 | * |
| 326 | * @return \WP_Error|\WP_HTTP_Response|\WP_REST_Response |
| 327 | */ |
| 328 | private function prepare_speed_score_response( $url, $score_request, $score_request_no_boost ) { |
| 329 | $history = new Speed_Score_History( $url ); |
| 330 | $url_no_boost = $this->get_boost_modules_disabled_url( $url ); |
| 331 | $history_no_boost = new Speed_Score_History( $url_no_boost ); |
| 332 | |
| 333 | $response = array(); |
| 334 | |
| 335 | if ( ( ! $score_request || $score_request->is_success() ) && ( ! $score_request_no_boost || $score_request_no_boost->is_success() ) ) { |
| 336 | $response['status'] = 'success'; |
| 337 | |
| 338 | $response['scores'] = array( |
| 339 | 'current' => $history->latest_scores(), |
| 340 | 'noBoost' => null, |
| 341 | ); |
| 342 | |
| 343 | // Only include noBoost scores if at least one module is enabled. |
| 344 | if ( $score_request && ! empty( $score_request->get_active_modules() ) ) { |
| 345 | $response['scores']['noBoost'] = $history_no_boost->latest_scores(); |
| 346 | } |
| 347 | |
| 348 | $response['scores']['isStale'] = $history->is_stale(); |
| 349 | |
| 350 | } elseif ( ( $score_request && $score_request->is_error() ) || ( $score_request_no_boost && $score_request_no_boost->is_error() ) ) { |
| 351 | // If either request ended up in error, we can just return the one with error so front-end can take action. The relevent url is available on the serialized object. |
| 352 | if ( $score_request->is_error() ) { |
| 353 | // Serialized version of score request contains the status property and error description if any. |
| 354 | $response = $score_request->jsonSerialize(); |
| 355 | } else { |
| 356 | $response = $score_request_no_boost->jsonSerialize(); |
| 357 | } |
| 358 | } else { |
| 359 | // If no request ended up in error/success as previous conditions dictate, it means that either of them are in pending state. |
| 360 | $response['status'] = 'pending'; |
| 361 | } |
| 362 | |
| 363 | return rest_ensure_response( $response ); |
| 364 | } |
| 365 | } |