| 1 |
<?php |
| 2 |
/** |
| 3 |
* ElasticPress-Elasticsearch API functions |
| 4 |
* |
| 5 |
* @since 3.0 |
| 6 |
* @package elasticpress |
| 7 |
*/ |
| 8 |
|
| 9 |
namespace ElasticPress; |
| 10 |
|
| 11 |
use ElasticPress\Utils as Utils; |
| 12 |
use \WP_Error as WP_Error; |
| 13 |
|
| 14 |
if ( ! defined( 'ABSPATH' ) ) { |
| 15 |
exit; // Exit if accessed directly. |
| 16 |
} |
| 17 |
|
| 18 |
/** |
| 19 |
* Elasticsearch API class |
| 20 |
*/ |
| 21 |
class Elasticsearch { |
| 22 |
|
| 23 |
/** |
| 24 |
* Logged queries for debugging |
| 25 |
* |
| 26 |
* @since 1.8 |
| 27 |
* @var array |
| 28 |
*/ |
| 29 |
private $queries = []; |
| 30 |
|
| 31 |
/** |
| 32 |
* ES plugins |
| 33 |
* |
| 34 |
* @var array |
| 35 |
* @since 2.2 |
| 36 |
*/ |
| 37 |
public $elasticsearch_plugins = null; |
| 38 |
|
| 39 |
/** |
| 40 |
* ES version number |
| 41 |
* |
| 42 |
* @var string |
| 43 |
* @since 2.2 |
| 44 |
*/ |
| 45 |
public $elasticsearch_version = null; |
| 46 |
|
| 47 |
/** |
| 48 |
* Server type (elasticsearch, opensearch, etc.) |
| 49 |
* |
| 50 |
* @var string |
| 51 |
*/ |
| 52 |
public $server_type = 'elasticsearch'; |
| 53 |
|
| 54 |
/** |
| 55 |
* Return singleton instance of class |
| 56 |
* |
| 57 |
* @return object |
| 58 |
* @since 0.1.0 |
| 59 |
*/ |
| 60 |
public static function factory() { |
| 61 |
static $instance = false; |
| 62 |
|
| 63 |
if ( ! $instance ) { |
| 64 |
$instance = new self(); |
| 65 |
} |
| 66 |
|
| 67 |
return $instance; |
| 68 |
} |
| 69 |
|
| 70 |
/** |
| 71 |
* Index a document in Elasticsearch. |
| 72 |
* |
| 73 |
* We require $document to have ID set |
| 74 |
* |
| 75 |
* @param string $index Index name. |
| 76 |
* @param string $type Index type. Previously this was used for index type. Now it's just passed to hooks for legacy reasons. |
| 77 |
* @param array $document Formatted Elasticsearch document. |
| 78 |
* @param boolean $blocking Blocking HTTP request or not. |
| 79 |
* @since 3.0 |
| 80 |
* @return boolean|array |
| 81 |
*/ |
| 82 |
public function index_document( $index, $type, $document, $blocking = true ) { |
| 83 |
/** |
| 84 |
* Filter Elasticsearch index document request path |
| 85 |
* |
| 86 |
* @hook ep_index_{document_type}_request_path |
| 87 |
* @param {string} $path Path to index document |
| 88 |
* @param {int} $document_id Document ID |
| 89 |
* @param {array} $document Document to index |
| 90 |
* @param {string} $type Type of document |
| 91 |
* @return {string} New path |
| 92 |
* @since 3.0 |
| 93 |
*/ |
| 94 |
if ( version_compare( $this->get_elasticsearch_version(), '7.0', '<' ) ) { |
| 95 |
$path = apply_filters( 'ep_index_' . $type . '_request_path', $index . '/' . $type . '/' . $document['ID'], $document, $type ); |
| 96 |
} else { |
| 97 |
$path = apply_filters( 'ep_index_' . $type . '_request_path', $index . '/_doc/' . $document['ID'], $document, $type ); |
| 98 |
} |
| 99 |
|
| 100 |
$path = apply_filters( 'ep_index_request_path', $path, $document, $type ); |
| 101 |
|
| 102 |
if ( function_exists( 'wp_json_encode' ) ) { |
| 103 |
$encoded_document = wp_json_encode( $document ); |
| 104 |
} else { |
| 105 |
// phpcs:disable |
| 106 |
$encoded_document = json_encode( $document ); |
| 107 |
// phpcs:enable |
| 108 |
} |
| 109 |
|
| 110 |
$request_args = array( |
| 111 |
'body' => $encoded_document, |
| 112 |
'method' => 'POST', |
| 113 |
'timeout' => apply_filters( 'ep_index_document_timeout', 15 ), |
| 114 |
'blocking' => $blocking, |
| 115 |
); |
| 116 |
|
| 117 |
$request = $this->remote_request( $path, $request_args, [], 'index' ); |
| 118 |
|
| 119 |
/** |
| 120 |
* Backwards compat for pre-3.0 |
| 121 |
*/ |
| 122 |
|
| 123 |
/** |
| 124 |
* Fires after indexing document |
| 125 |
* |
| 126 |
* @hook ep_index_post_retrieve_raw_response |
| 127 |
* @param {array} $request Remote request response |
| 128 |
* @param {array} $document Current document |
| 129 |
* @param {string} $path Elasticsearch request path |
| 130 |
*/ |
| 131 |
do_action( 'ep_index_post_retrieve_raw_response', $request, $document, $path ); |
| 132 |
|
| 133 |
/** |
| 134 |
* Fires after indexing document |
| 135 |
* |
| 136 |
* @hook ep_index_retrieve_raw_response |
| 137 |
* @param {array} $request Remote request response |
| 138 |
* @param {array} $document Current document |
| 139 |
* @param {string} $path Elasticsearch request path |
| 140 |
*/ |
| 141 |
do_action( 'ep_index_retrieve_raw_response', $request, $document, $path ); |
| 142 |
|
| 143 |
if ( ! is_wp_error( $request ) ) { |
| 144 |
$response_body = wp_remote_retrieve_body( $request ); |
| 145 |
|
| 146 |
$return = json_decode( $response_body ); |
| 147 |
} else { |
| 148 |
$return = false; |
| 149 |
} |
| 150 |
|
| 151 |
/** |
| 152 |
* Backwards compat for pre-3.0 |
| 153 |
*/ |
| 154 |
|
| 155 |
/** |
| 156 |
* Fires after indexing document and body decoding |
| 157 |
* |
| 158 |
* @hook ep_index_index_post |
| 159 |
* @param {array} $document Current document |
| 160 |
* @param {array|boolean} $return Elasticsearch response. False on error. |
| 161 |
*/ |
| 162 |
do_action( 'ep_after_index_post', $document, $return ); |
| 163 |
|
| 164 |
/** |
| 165 |
* Fires after indexing document and body decoding |
| 166 |
* |
| 167 |
* @hook ep_index_index |
| 168 |
* @param {array} $document Current document |
| 169 |
* @param {array|boolean} $return Elasticsearch response. False on error. |
| 170 |
*/ |
| 171 |
do_action( 'ep_after_index', $document, $return ); |
| 172 |
|
| 173 |
return $return; |
| 174 |
} |
| 175 |
|
| 176 |
/** |
| 177 |
* Pull the site id from the index name |
| 178 |
* |
| 179 |
* @param string $index_name Index name. |
| 180 |
* @since 0.9.0 |
| 181 |
* @return int |
| 182 |
*/ |
| 183 |
public function parse_site_id( $index_name ) { |
| 184 |
return (int) preg_replace( '#^.*\-([0-9]+)$#', '$1', $index_name ); |
| 185 |
} |
| 186 |
|
| 187 |
/** |
| 188 |
* Refresh all index. Sometimes useful if you need changes to show up instantly. |
| 189 |
* |
| 190 |
* @since 3.0 |
| 191 |
* @return bool |
| 192 |
*/ |
| 193 |
public function refresh_indices() { |
| 194 |
|
| 195 |
$request_args = array( 'method' => 'POST' ); |
| 196 |
|
| 197 |
$request = $this->remote_request( '_refresh', $request_args, [], 'refresh_indices' ); |
| 198 |
|
| 199 |
if ( ! is_wp_error( $request ) ) { |
| 200 |
if ( isset( $request['response']['code'] ) && 200 === $request['response']['code'] ) { |
| 201 |
return true; |
| 202 |
} |
| 203 |
} |
| 204 |
|
| 205 |
return false; |
| 206 |
} |
| 207 |
|
| 208 |
/** |
| 209 |
* Get Elasticsearch version. We cache this so we don't have to do it every time. |
| 210 |
* |
| 211 |
* @param bool $force Bust cache or not. |
| 212 |
* @since 2.1.2 |
| 213 |
* @return string|bool |
| 214 |
*/ |
| 215 |
public function get_elasticsearch_version( $force = false ) { |
| 216 |
|
| 217 |
$info = $this->get_elasticsearch_info( $force ); |
| 218 |
|
| 219 |
/** |
| 220 |
* Filter Elasticsearch version |
| 221 |
* |
| 222 |
* @hook ep_elasticsearch_version |
| 223 |
* @param {string} $version Version |
| 224 |
* @return {string} New version |
| 225 |
* @since 2.1.2 |
| 226 |
*/ |
| 227 |
return apply_filters( 'ep_elasticsearch_version', $info['version'] ); |
| 228 |
} |
| 229 |
|
| 230 |
/** |
| 231 |
* Get server type. We cache this so we don't have to do it every time. |
| 232 |
* |
| 233 |
* @param bool $force Bust cache or not. |
| 234 |
* @since 4.2.1 |
| 235 |
* @return string|bool |
| 236 |
*/ |
| 237 |
public function get_server_type( $force = false ) { |
| 238 |
|
| 239 |
$info = $this->get_elasticsearch_info( $force ); |
| 240 |
|
| 241 |
/** |
| 242 |
* Filter server type |
| 243 |
* |
| 244 |
* @hook ep_server_type |
| 245 |
* @param {string} $type Type (elasticsearch, opensearch, others) |
| 246 |
* @return {string} New type |
| 247 |
* @since 4.2.1 |
| 248 |
*/ |
| 249 |
return apply_filters( 'ep_server_type', $info['server_type'] ); |
| 250 |
} |
| 251 |
|
| 252 |
/** |
| 253 |
* Get Elasticsearch plugins. We cache this so we don't have to do it every time. |
| 254 |
* |
| 255 |
* @param bool $force Force cache refresh or not. |
| 256 |
* @since 2.2 |
| 257 |
* @return string|bool |
| 258 |
*/ |
| 259 |
public function get_elasticsearch_plugins( $force = false ) { |
| 260 |
|
| 261 |
$info = $this->get_elasticsearch_info( $force ); |
| 262 |
|
| 263 |
/** |
| 264 |
* Filter Elasticsearch plugins |
| 265 |
* |
| 266 |
* @hook ep_elasticsearch_plugins |
| 267 |
* @param {array} $plugins Elasticsearch plugins |
| 268 |
* @return {array} New plugins |
| 269 |
* @since 2.2 |
| 270 |
*/ |
| 271 |
return apply_filters( 'ep_elasticsearch_plugins', $info['plugins'] ); |
| 272 |
} |
| 273 |
|
| 274 |
/** |
| 275 |
* Run a query on Elasticsearch |
| 276 |
* |
| 277 |
* @param string $index Index name. |
| 278 |
* @param string $type Index type. Previously this was used for index type. Now it's just passed to hooks for legacy reasons. |
| 279 |
* @param array $query Prepared ES query. |
| 280 |
* @param array $query_args WP query args. |
| 281 |
* @param mixed $query_object Could be WP_Query, WP_User_Query, etc. |
| 282 |
* @since 3.0 |
| 283 |
* @return bool|array |
| 284 |
*/ |
| 285 |
public function query( $index, $type, $query, $query_args, $query_object = null ) { |
| 286 |
if ( version_compare( $this->get_elasticsearch_version(), '7.0', '<' ) ) { |
| 287 |
$path = $index . '/' . $type . '/_search'; |
| 288 |
} else { |
| 289 |
$path = $index . '/_search'; |
| 290 |
} |
| 291 |
|
| 292 |
// For backwards compat |
| 293 |
/** |
| 294 |
* Filter Elasticsearch query request path |
| 295 |
* |
| 296 |
* @hook ep_search_request_path |
| 297 |
* @param {string} $path Request path |
| 298 |
* @param {string} $index Index name |
| 299 |
* @param {string} $type Index type |
| 300 |
* @param {array} $query Prepared Elasticsearch query |
| 301 |
* @param {array} $query_args Query arguments |
| 302 |
* @param {mixed} $query_object Could be WP_Query, WP_User_Query, etc. |
| 303 |
* @return {string} New path |
| 304 |
*/ |
| 305 |
$path = apply_filters( 'ep_search_request_path', $path, $index, $type, $query, $query_args, $query_object ); |
| 306 |
|
| 307 |
/** |
| 308 |
* Filter Elasticsearch query request path |
| 309 |
* |
| 310 |
* @hook ep_query_request_path |
| 311 |
* @param {string} $path Request path |
| 312 |
* @param {string} $index Index name |
| 313 |
* @param {string} $type Index type |
| 314 |
* @param {array} $query Prepared Elasticsearch query |
| 315 |
* @param {array} $query_args Query arguments |
| 316 |
* @param {mixed} $query_object Could be WP_Query, WP_User_Query, etc. |
| 317 |
* @return {string} New path |
| 318 |
*/ |
| 319 |
$path = apply_filters( 'ep_query_request_path', $path, $index, $type, $query, $query_args, $query_object ); |
| 320 |
|
| 321 |
$request_args = array( |
| 322 |
'body' => wp_json_encode( $query ), |
| 323 |
'method' => 'POST', |
| 324 |
'headers' => array( |
| 325 |
'Content-Type' => 'application/json', |
| 326 |
), |
| 327 |
); |
| 328 |
|
| 329 |
/** |
| 330 |
* Filter whether to send the EP-Search-Term header or not. |
| 331 |
* |
| 332 |
* @todo Evaluate if we should remove tests for is_admin() and empty post types. |
| 333 |
* |
| 334 |
* @since 3.5.2 |
| 335 |
* @hook ep_query_send_ep_search_term_header |
| 336 |
* @param {bool} $send_header True means send the EP-Search-Term header |
| 337 |
* @param {array} $query_args WP query args |
| 338 |
* @return {bool} New $send_header value |
| 339 |
*/ |
| 340 |
$send_ep_search_term_header = apply_filters( |
| 341 |
'ep_query_send_ep_search_term_header', |
| 342 |
( |
| 343 |
Utils\is_epio() && |
| 344 |
! empty( $query_args['s'] ) && |
| 345 |
Utils\is_integrated_request( 'search' ) && |
| 346 |
! isset( $_GET['post_type'] ) // phpcs:ignore WordPress.Security.NonceVerification |
| 347 |
), |
| 348 |
$query_args |
| 349 |
); |
| 350 |
|
| 351 |
// If needed, send the search term as a header to ES so the backend understands what a normal query looks like |
| 352 |
if ( $send_ep_search_term_header ) { |
| 353 |
$request_args['headers']['EP-Search-Term'] = rawurlencode( $query_args['s'] ); |
| 354 |
} |
| 355 |
|
| 356 |
/** |
| 357 |
* Filter Elasticsearch query request arguments |
| 358 |
* |
| 359 |
* @hook ep_query_request_args |
| 360 |
* @since 3.6.4 |
| 361 |
* @param {array} $request_args Request arguments |
| 362 |
* @param {string} $path Request path |
| 363 |
* @param {string} $index Index name |
| 364 |
* @param {string} $type Index type |
| 365 |
* @param {array} $query Prepared Elasticsearch query |
| 366 |
* @param {array} $query_args Query arguments |
| 367 |
* @param {mixed} $query_object Could be WP_Query, WP_User_Query, etc. |
| 368 |
* @return {array} New request arguments |
| 369 |
*/ |
| 370 |
$request_args = apply_filters( 'ep_query_request_args', $request_args, $path, $index, $type, $query, $query_args, $query_object ); |
| 371 |
|
| 372 |
$request = $this->remote_request( $path, $request_args, $query_args, 'query' ); |
| 373 |
|
| 374 |
$remote_req_res_code = absint( wp_remote_retrieve_response_code( $request ) ); |
| 375 |
|
| 376 |
$is_valid_res = ( $remote_req_res_code >= 200 && $remote_req_res_code <= 299 ); |
| 377 |
|
| 378 |
/** |
| 379 |
* Filter whether Elasticsearch remote request response code is valid |
| 380 |
* |
| 381 |
* @hook ep_remote_request_is_valid_res |
| 382 |
* @param {boolean} $is_valid_res Whether response code is valid or not |
| 383 |
* @param {array} $request Remote request response |
| 384 |
* @return {string} New value |
| 385 |
*/ |
| 386 |
if ( ! is_wp_error( $request ) && apply_filters( 'ep_remote_request_is_valid_res', $is_valid_res, $request ) ) { |
| 387 |
|
| 388 |
$response_body = wp_remote_retrieve_body( $request ); |
| 389 |
|
| 390 |
$response = json_decode( $response_body, true ); |
| 391 |
|
| 392 |
$hits = $this->get_hits_from_query( $response ); |
| 393 |
$total_hits = $this->get_total_hits_from_query( $response ); |
| 394 |
|
| 395 |
if ( ! empty( $response['aggregations'] ) ) { |
| 396 |
/** |
| 397 |
* Deprecated way to retrieve aggregations. |
| 398 |
* |
| 399 |
* @hook ep_retrieve_aggregations |
| 400 |
* @param {array} $aggregations Elasticsearch aggregations |
| 401 |
* @param {array} $query Prepared Elasticsearch query |
| 402 |
* @param {string} $scope Backwards compat for scope parameter. |
| 403 |
* @param {array} $query_args Current WP Query arguments |
| 404 |
*/ |
| 405 |
do_action( 'ep_retrieve_aggregations', $response['aggregations'], $query, '', $query_args ); |
| 406 |
} |
| 407 |
|
| 408 |
/** |
| 409 |
* Fires after valid Elasticsearch query |
| 410 |
* |
| 411 |
* @hook ep_valid_response |
| 412 |
* @param {array} $response Elasticsearch decoded response |
| 413 |
* @param {array} $query Prepared Elasticsearch query |
| 414 |
* @param {array} $query_args Current WP Query arguments |
| 415 |
* @param {mixed} $query_object Could be WP_Query, WP_User_Query, etc. |
| 416 |
*/ |
| 417 |
do_action( 'ep_valid_response', $response, $query, $query_args, $query_object ); |
| 418 |
|
| 419 |
// Backwards compat |
| 420 |
/** |
| 421 |
* Fires after valid Elasticsearch query |
| 422 |
* |
| 423 |
* @hook ep_retrieve_raw_response |
| 424 |
* @param {array} $response Elasticsearch request |
| 425 |
* @param {array} $query Prepared Elasticsearch query |
| 426 |
* @param {array} $query_args Current WP Query arguments |
| 427 |
* @param {mixed} $query_object Could be WP_Query, WP_User_Query, etc. |
| 428 |
*/ |
| 429 |
do_action( 'ep_retrieve_raw_response', $request, $query, $query_args, $query_object ); |
| 430 |
|
| 431 |
$documents = []; |
| 432 |
|
| 433 |
foreach ( $hits as $hit ) { |
| 434 |
$document = $hit['_source']; |
| 435 |
$document['site_id'] = $this->parse_site_id( $hit['_index'] ); |
| 436 |
|
| 437 |
if ( ! empty( $hit['highlight'] ) ) { |
| 438 |
$document['highlight'] = $hit['highlight']; |
| 439 |
} |
| 440 |
|
| 441 |
/** |
| 442 |
* Filter Elasticsearch retrieved document |
| 443 |
* |
| 444 |
* @hook ep_retrieve_the_{index_type} |
| 445 |
* @param {array} $document Document retrieved from Elasticsearch |
| 446 |
* @param {array} $hit Raw Elasticsearch hit |
| 447 |
* @param {string} $index Index name |
| 448 |
* @return {array} New document |
| 449 |
*/ |
| 450 |
$documents[] = apply_filters( 'ep_retrieve_the_' . $type, $document, $hit, $index ); |
| 451 |
} |
| 452 |
|
| 453 |
/** |
| 454 |
* Filter Elasticsearch query results |
| 455 |
* |
| 456 |
* @hook ep_es_query_results |
| 457 |
* @param {array} $results Results from Elasticsearch |
| 458 |
* @param {response} $response Raw response from Elasticsearch |
| 459 |
* @param {array} $query Raw Elasticsearch query |
| 460 |
* @param {array} $query_args Query arguments |
| 461 |
* @param {mixed} $query_object Could be WP_Query, WP_User_Query, etc. |
| 462 |
* @return {array} New results |
| 463 |
*/ |
| 464 |
return apply_filters( |
| 465 |
'ep_es_query_results', |
| 466 |
[ |
| 467 |
'found_documents' => $total_hits, |
| 468 |
'documents' => $documents, |
| 469 |
], |
| 470 |
$response, |
| 471 |
$query, |
| 472 |
$query_args, |
| 473 |
$query_object |
| 474 |
); |
| 475 |
} |
| 476 |
|
| 477 |
/** |
| 478 |
* Fires after invalid Elasticsearch query |
| 479 |
* |
| 480 |
* @hook ep_invalid_response |
| 481 |
* @param {array} $request Remote request response |
| 482 |
* @param {array} $query Prepared Elasticsearch query |
| 483 |
* @param {array} $query_args Current WP Query arguments |
| 484 |
* @param {mixed} $query_object Could be WP_Query, WP_User_Query, etc. |
| 485 |
*/ |
| 486 |
do_action( 'ep_invalid_response', $request, $query, $query_args, $query_object ); |
| 487 |
|
| 488 |
return false; |
| 489 |
} |
| 490 |
|
| 491 |
/** |
| 492 |
* Returns the number of total results that ElasticSearch found for the given query |
| 493 |
* |
| 494 |
* @param array $response Response to get total hits from. |
| 495 |
* @since 2.5 |
| 496 |
* @return int |
| 497 |
*/ |
| 498 |
public function get_total_hits_from_query( $response ) { |
| 499 |
|
| 500 |
if ( $this->is_empty_query( $response ) ) { |
| 501 |
return 0; |
| 502 |
} |
| 503 |
|
| 504 |
return $response['hits']['total']; |
| 505 |
} |
| 506 |
|
| 507 |
/** |
| 508 |
* Returns array containing hits returned from query, if such exist |
| 509 |
* |
| 510 |
* @param array $response Response to get hits from. |
| 511 |
* @since 2.5 |
| 512 |
* @return array |
| 513 |
*/ |
| 514 |
public function get_hits_from_query( $response ) { |
| 515 |
|
| 516 |
if ( $this->is_empty_query( $response ) ) { |
| 517 |
return []; |
| 518 |
} |
| 519 |
|
| 520 |
/** |
| 521 |
* Filter Elasticsearch allows to flatten hits, if searched hits are come within aggregations. |
| 522 |
* |
| 523 |
* @see https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-metrics-top-hits-aggregation.html |
| 524 |
* |
| 525 |
* @hook ep_get_hits_from_query |
| 526 |
* @param {array} $hits from Elasticsearch |
| 527 |
* @param {response} $response Raw response from Elasticsearch |
| 528 |
* @return {array} hits |
| 529 |
*/ |
| 530 |
return apply_filters( 'ep_get_hits_from_query', $response['hits']['hits'], $response ); |
| 531 |
} |
| 532 |
|
| 533 |
/** |
| 534 |
* Check if a response array contains results or not |
| 535 |
* |
| 536 |
* @param array $response Response to check. |
| 537 |
* @since 0.1.2 |
| 538 |
* @return bool |
| 539 |
*/ |
| 540 |
public function is_empty_query( $response ) { |
| 541 |
|
| 542 |
if ( ! is_array( $response ) ) { |
| 543 |
return true; |
| 544 |
} |
| 545 |
|
| 546 |
if ( isset( $response['error'] ) ) { |
| 547 |
return true; |
| 548 |
} |
| 549 |
|
| 550 |
if ( empty( $response['hits'] ) ) { |
| 551 |
return true; |
| 552 |
} |
| 553 |
|
| 554 |
if ( isset( $response['hits']['total'] ) && 0 === (int) $response['hits']['total'] ) { |
| 555 |
return true; |
| 556 |
} |
| 557 |
|
| 558 |
return false; |
| 559 |
} |
| 560 |
|
| 561 |
/** |
| 562 |
* Delete an Elasticsearch document |
| 563 |
* |
| 564 |
* @param string $index Index name. |
| 565 |
* @param string $type Index type. Previously this was used for index type. Now it's just passed to hooks for legacy reasons. |
| 566 |
* @param int $document_id Document id to delete. |
| 567 |
* @param boolean $blocking Blocking HTTP request or not. |
| 568 |
* @since 3.0 |
| 569 |
* @return boolean |
| 570 |
*/ |
| 571 |
public function delete_document( $index, $type, $document_id, $blocking = true ) { |
| 572 |
if ( version_compare( $this->get_elasticsearch_version(), '7.0', '<' ) ) { |
| 573 |
$path = $index . '/' . $type . '/' . $document_id; |
| 574 |
} else { |
| 575 |
$path = $index . '/_doc/' . $document_id; |
| 576 |
} |
| 577 |
|
| 578 |
$request_args = [ |
| 579 |
'method' => 'DELETE', |
| 580 |
'timeout' => 15, |
| 581 |
'blocking' => $blocking, |
| 582 |
]; |
| 583 |
|
| 584 |
$request = $this->remote_request( $path, $request_args, [], 'delete' ); |
| 585 |
|
| 586 |
if ( ! is_wp_error( $request ) ) { |
| 587 |
$response_body = wp_remote_retrieve_body( $request ); |
| 588 |
|
| 589 |
$response = json_decode( $response_body, true ); |
| 590 |
|
| 591 |
if ( ! empty( $response['found'] ) ) { |
| 592 |
return true; |
| 593 |
} |
| 594 |
} |
| 595 |
|
| 596 |
return false; |
| 597 |
} |
| 598 |
|
| 599 |
/** |
| 600 |
* Add appropriate headers to request |
| 601 |
* |
| 602 |
* @since 1.4 |
| 603 |
* @return array |
| 604 |
*/ |
| 605 |
public function format_request_headers() { |
| 606 |
$headers = array( |
| 607 |
'Content-Type' => 'application/json', |
| 608 |
); |
| 609 |
|
| 610 |
// Check for ElasticPress API key and add to header if needed. |
| 611 |
if ( defined( 'EP_API_KEY' ) && EP_API_KEY ) { |
| 612 |
$headers['X-ElasticPress-API-Key'] = EP_API_KEY; |
| 613 |
} |
| 614 |
|
| 615 |
/** |
| 616 |
* ES Shield info |
| 617 |
* |
| 618 |
* @since 1.9 |
| 619 |
*/ |
| 620 |
$shield = Utils\get_shield_credentials(); |
| 621 |
|
| 622 |
if ( ! empty( $shield ) ) { |
| 623 |
// phpcs:disable |
| 624 |
$headers['Authorization'] = 'Basic ' . base64_encode( $shield ); |
| 625 |
// phpcs:enable |
| 626 |
} |
| 627 |
|
| 628 |
/** |
| 629 |
* Filter Elasticsearch request headers |
| 630 |
* |
| 631 |
* @hook ep_format_request_headers |
| 632 |
* @param {array} $headers Current headers |
| 633 |
* @return {array} New headers |
| 634 |
*/ |
| 635 |
$headers = apply_filters( 'ep_format_request_headers', $headers ); |
| 636 |
|
| 637 |
return $headers; |
| 638 |
} |
| 639 |
|
| 640 |
/** |
| 641 |
* Get a document from Elasticsearch given an id |
| 642 |
* |
| 643 |
* @param string $index Index name. |
| 644 |
* @param string $type Index type. Previously this was used for index type. Now it's just passed to hooks for legacy reasons. |
| 645 |
* @param int $document_id Document id to get. |
| 646 |
* @since 3.0 |
| 647 |
* @return boolean|array |
| 648 |
*/ |
| 649 |
public function get_document( $index, $type, $document_id ) { |
| 650 |
if ( version_compare( $this->get_elasticsearch_version(), '7.0', '<' ) ) { |
| 651 |
$path = $index . '/' . $type . '/' . $document_id; |
| 652 |
} else { |
| 653 |
$path = $index . '/_doc/' . $document_id; |
| 654 |
} |
| 655 |
|
| 656 |
$request_args = [ 'method' => 'GET' ]; |
| 657 |
|
| 658 |
$request = $this->remote_request( $path, $request_args, [], 'get' ); |
| 659 |
|
| 660 |
if ( ! is_wp_error( $request ) ) { |
| 661 |
$response_body = wp_remote_retrieve_body( $request ); |
| 662 |
|
| 663 |
$response = json_decode( $response_body, true ); |
| 664 |
|
| 665 |
if ( ! empty( $response['exists'] ) || ! empty( $response['found'] ) ) { |
| 666 |
return $response['_source']; |
| 667 |
} |
| 668 |
} |
| 669 |
|
| 670 |
return false; |
| 671 |
} |
| 672 |
|
| 673 |
/** |
| 674 |
* Delete the network alias. |
| 675 |
* |
| 676 |
* Network aliases are used to query documents across blogs in a network. |
| 677 |
* |
| 678 |
* @param string $alias Alias to use. |
| 679 |
* @since 3.0 |
| 680 |
* @return array|boolean |
| 681 |
*/ |
| 682 |
public function delete_network_alias( $alias ) { |
| 683 |
$path = '*/_alias/' . $alias; |
| 684 |
|
| 685 |
$request_args = [ 'method' => 'DELETE' ]; |
| 686 |
|
| 687 |
$request = $this->remote_request( $path, $request_args, [], 'delete_network_alias' ); |
| 688 |
|
| 689 |
if ( ! is_wp_error( $request ) && ( 200 >= wp_remote_retrieve_response_code( $request ) && 300 > wp_remote_retrieve_response_code( $request ) ) ) { |
| 690 |
$response_body = wp_remote_retrieve_body( $request ); |
| 691 |
|
| 692 |
return json_decode( $response_body ); |
| 693 |
} |
| 694 |
|
| 695 |
return false; |
| 696 |
} |
| 697 |
|
| 698 |
/** |
| 699 |
* Get multiple documents from Elasticsearch given an array of ids |
| 700 |
* |
| 701 |
* @param string $index Index name. |
| 702 |
* @param string $type Index type. Previously this was used for index type. Now it's just passed to hooks for legacy reasons. |
| 703 |
* @param array $document_ids Array of document ids to get. |
| 704 |
* @since 3.6.0 |
| 705 |
* @return boolean|array |
| 706 |
*/ |
| 707 |
public function get_documents( $index, $type, $document_ids ) { |
| 708 |
if ( version_compare( $this->get_elasticsearch_version(), '7.0', '<' ) ) { |
| 709 |
$path = apply_filters( 'ep_index_' . $type . '_request_path', $index . '/' . $type . '/_mget', $document_ids, $type ); |
| 710 |
} else { |
| 711 |
$path = apply_filters( 'ep_index_' . $type . '_request_path', $index . '/_mget', $document_ids, $type ); |
| 712 |
} |
| 713 |
|
| 714 |
$request_args = [ |
| 715 |
'method' => 'POST', |
| 716 |
'body' => wp_json_encode( |
| 717 |
array( |
| 718 |
'ids' => $document_ids, |
| 719 |
) |
| 720 |
), |
| 721 |
]; |
| 722 |
|
| 723 |
$request = $this->remote_request( $path, $request_args, [], 'post' ); |
| 724 |
|
| 725 |
if ( is_wp_error( $request ) ) { |
| 726 |
return false; |
| 727 |
} |
| 728 |
|
| 729 |
$response_body = wp_remote_retrieve_body( $request ); |
| 730 |
|
| 731 |
$response = json_decode( $response_body, true ); |
| 732 |
|
| 733 |
$docs = []; |
| 734 |
|
| 735 |
if ( isset( $response['docs'] ) && is_array( $response['docs'] ) ) { |
| 736 |
foreach ( $response['docs'] as $doc ) { |
| 737 |
if ( ! empty( $doc['exists'] ) || ! empty( $doc['found'] ) ) { |
| 738 |
$docs[ $doc['_id'] ] = $doc['_source']; |
| 739 |
} |
| 740 |
} |
| 741 |
} |
| 742 |
|
| 743 |
/** |
| 744 |
* Filter documents found by Elasticsearch through the /_mget endpoint. |
| 745 |
* |
| 746 |
* @hook ep_get_documents |
| 747 |
* @since 3.6.0 |
| 748 |
* @param {array} $docs Documents found indexed by ID |
| 749 |
* @param {string} $index Index name |
| 750 |
* @param {string} $type Index type |
| 751 |
* @param {array} $document_ids Array of document ids |
| 752 |
* @return {array} Documents to be returned |
| 753 |
*/ |
| 754 |
$docs = apply_filters( 'ep_get_documents', $docs, $index, $type, $document_ids ); |
| 755 |
|
| 756 |
return $docs; |
| 757 |
} |
| 758 |
|
| 759 |
/** |
| 760 |
* Create the network alias. |
| 761 |
* |
| 762 |
* Network aliases are used to query documents across blogs in a network. |
| 763 |
* |
| 764 |
* @param array $indexes Indexes to group under alias. |
| 765 |
* @param string $network_alias Name of network alias. |
| 766 |
* @since 3.0 |
| 767 |
* @return boolean |
| 768 |
*/ |
| 769 |
public function create_network_alias( $indexes, $network_alias ) { |
| 770 |
|
| 771 |
$path = '_aliases'; |
| 772 |
|
| 773 |
$args = array( |
| 774 |
'actions' => [], |
| 775 |
); |
| 776 |
|
| 777 |
foreach ( $indexes as $index ) { |
| 778 |
if ( empty( $index ) ) { |
| 779 |
continue; |
| 780 |
} |
| 781 |
|
| 782 |
$args['actions'][] = array( |
| 783 |
'add' => array( |
| 784 |
'index' => $index, |
| 785 |
'alias' => $network_alias, |
| 786 |
), |
| 787 |
); |
| 788 |
} |
| 789 |
|
| 790 |
$request_args = array( |
| 791 |
'body' => wp_json_encode( $args ), |
| 792 |
'method' => 'POST', |
| 793 |
'timeout' => 25, |
| 794 |
); |
| 795 |
|
| 796 |
$request = $this->remote_request( $path, $request_args, [], 'create_network_alias' ); |
| 797 |
|
| 798 |
if ( ! is_wp_error( $request ) && ( 200 >= wp_remote_retrieve_response_code( $request ) && 300 > wp_remote_retrieve_response_code( $request ) ) ) { |
| 799 |
return true; |
| 800 |
} |
| 801 |
|
| 802 |
return false; |
| 803 |
} |
| 804 |
|
| 805 |
/** |
| 806 |
* Put a mapping into Elasticsearch |
| 807 |
* |
| 808 |
* @param string $index Index name. |
| 809 |
* @param array $mapping Mapping array. |
| 810 |
* @since 3.0 |
| 811 |
* @return boolean |
| 812 |
*/ |
| 813 |
public function put_mapping( $index, $mapping ) { |
| 814 |
/** |
| 815 |
* Filter Elasticsearch mapping before put mapping |
| 816 |
* |
| 817 |
* @hook ep_config_mapping |
| 818 |
* @param {array} $mapping Elasticsearch mapping |
| 819 |
* @param {string} $index Index name |
| 820 |
* @return {array} New mapping |
| 821 |
*/ |
| 822 |
$mapping = apply_filters( 'ep_config_mapping', $mapping, $index ); |
| 823 |
|
| 824 |
$request_args = [ |
| 825 |
'body' => wp_json_encode( $mapping ), |
| 826 |
'method' => 'PUT', |
| 827 |
'timeout' => 30, |
| 828 |
]; |
| 829 |
|
| 830 |
$request = $this->remote_request( $index, $request_args, [], 'put_mapping' ); |
| 831 |
|
| 832 |
/** |
| 833 |
* Filter Elasticsearch put mapping response |
| 834 |
* |
| 835 |
* @hook ep_config_mapping_request |
| 836 |
* @param {array} $request Elasticsearch response |
| 837 |
* @param {string} $index Elasticsearch index name |
| 838 |
* @param {array} $mapping Mapping sent to Elasticsearch |
| 839 |
* @return {array} New response |
| 840 |
*/ |
| 841 |
$request = apply_filters( 'ep_config_mapping_request', $request, $index, $mapping ); |
| 842 |
|
| 843 |
$response_body = wp_remote_retrieve_body( $request ); |
| 844 |
|
| 845 |
if ( ! is_wp_error( $request ) && 200 === wp_remote_retrieve_response_code( $request ) ) { |
| 846 |
$response_body = wp_remote_retrieve_body( $request ); |
| 847 |
|
| 848 |
return true; |
| 849 |
} |
| 850 |
|
| 851 |
return false; |
| 852 |
} |
| 853 |
|
| 854 |
/** |
| 855 |
* Get current index mapping from Elasticsearch. |
| 856 |
* |
| 857 |
* @param string $index The index name. |
| 858 |
* @since 3.5 |
| 859 |
* @return array |
| 860 |
*/ |
| 861 |
public function get_mapping( $index ) { |
| 862 |
$request_args = [ |
| 863 |
'method' => 'GET', |
| 864 |
'timeout' => 30, |
| 865 |
]; |
| 866 |
|
| 867 |
$request = $this->remote_request( $index, $request_args, [], 'get_mapping' ); |
| 868 |
|
| 869 |
if ( is_wp_error( $request ) || 200 !== wp_remote_retrieve_response_code( $request ) ) { |
| 870 |
return []; |
| 871 |
} |
| 872 |
|
| 873 |
$body = wp_remote_retrieve_body( $request ); |
| 874 |
|
| 875 |
if ( ! $body ) { |
| 876 |
return []; |
| 877 |
} |
| 878 |
|
| 879 |
$mapping = json_decode( $body, true ); |
| 880 |
|
| 881 |
return is_array( $mapping ) ? $mapping : []; |
| 882 |
} |
| 883 |
|
| 884 |
/** |
| 885 |
* Close an open index. |
| 886 |
* |
| 887 |
* @param string $index Index name. |
| 888 |
* @since 3.5 |
| 889 |
* @return boolean |
| 890 |
*/ |
| 891 |
public function close_index( $index ) { |
| 892 |
$request_args = [ |
| 893 |
'method' => 'POST', |
| 894 |
'timeout' => 30, |
| 895 |
]; |
| 896 |
|
| 897 |
$close = trailingslashit( $index ) . '_close'; |
| 898 |
$request = $this->remote_request( $close, $request_args, [], 'close_index' ); |
| 899 |
|
| 900 |
return ( ! is_wp_error( $request ) && 200 === wp_remote_retrieve_response_code( $request ) ); |
| 901 |
} |
| 902 |
|
| 903 |
/** |
| 904 |
* Open a closed index. |
| 905 |
* |
| 906 |
* @param string $index Index name. |
| 907 |
* @since 3.5 |
| 908 |
* @return boolean |
| 909 |
*/ |
| 910 |
public function open_index( $index ) { |
| 911 |
$request_args = [ |
| 912 |
'method' => 'POST', |
| 913 |
'timeout' => 30, |
| 914 |
]; |
| 915 |
|
| 916 |
$open = trailingslashit( $index ) . '_open'; |
| 917 |
$request = $this->remote_request( $open, $request_args, [], 'open_index' ); |
| 918 |
|
| 919 |
return ( ! is_wp_error( $request ) && 200 === wp_remote_retrieve_response_code( $request ) ); |
| 920 |
} |
| 921 |
|
| 922 |
/** |
| 923 |
* Update index settings. |
| 924 |
* |
| 925 |
* @param string $index Index name. |
| 926 |
* @param array $settings Setting update array. |
| 927 |
* @param boolean $close_first Optional. True if index must be closed prior to update. |
| 928 |
* Dynamic settings can be updated on open indices. Static |
| 929 |
* settings must be closed. Default false. |
| 930 |
* @since 3.5 |
| 931 |
* @return boolean |
| 932 |
*/ |
| 933 |
public function update_index_settings( $index, $settings, $close_first = false ) { |
| 934 |
$request_args = [ |
| 935 |
'body' => wp_json_encode( $settings ), |
| 936 |
'method' => 'PUT', |
| 937 |
'timeout' => 30, |
| 938 |
]; |
| 939 |
|
| 940 |
if ( $close_first ) { |
| 941 |
$this->close_index( $index ); |
| 942 |
} |
| 943 |
|
| 944 |
$settings = trailingslashit( $index ) . '_settings'; |
| 945 |
$request = $this->remote_request( $settings, $request_args, [], 'update_index_settings' ); |
| 946 |
|
| 947 |
$updated = ( ! is_wp_error( $request ) && 200 === wp_remote_retrieve_response_code( $request ) ); |
| 948 |
|
| 949 |
if ( $close_first ) { |
| 950 |
$opened = $this->open_index( $index ); |
| 951 |
return ( $updated && $opened ); |
| 952 |
} |
| 953 |
|
| 954 |
return $updated; |
| 955 |
} |
| 956 |
|
| 957 |
/** |
| 958 |
* Delete an Elasticsearch index |
| 959 |
* |
| 960 |
* @param string $index Index name. |
| 961 |
* @since 3.0 |
| 962 |
* @return boolean |
| 963 |
*/ |
| 964 |
public function delete_index( $index ) { |
| 965 |
|
| 966 |
$request_args = [ |
| 967 |
'method' => 'DELETE', |
| 968 |
'timeout' => 30, |
| 969 |
]; |
| 970 |
|
| 971 |
$request = $this->remote_request( $index, $request_args, [], 'delete_index' ); |
| 972 |
|
| 973 |
// 200 means the delete was successful |
| 974 |
// 404 means the index was non-existent, but we should still pass this through as we will occasionally want to delete an already deleted index |
| 975 |
if ( ! is_wp_error( $request ) && ( 200 === wp_remote_retrieve_response_code( $request ) || 404 === wp_remote_retrieve_response_code( $request ) ) ) { |
| 976 |
$response_body = wp_remote_retrieve_body( $request ); |
| 977 |
|
| 978 |
return json_decode( $response_body ); |
| 979 |
} |
| 980 |
|
| 981 |
return false; |
| 982 |
} |
| 983 |
|
| 984 |
/** |
| 985 |
* Delete all indices |
| 986 |
* |
| 987 |
* @since 3.0 |
| 988 |
* @return boolean |
| 989 |
*/ |
| 990 |
public function delete_all_indices() { |
| 991 |
return $this->delete_index( '*' ); |
| 992 |
} |
| 993 |
|
| 994 |
/** |
| 995 |
* Check if an ES index exists |
| 996 |
* |
| 997 |
* @param string $index Index name. |
| 998 |
* @since 3.0 |
| 999 |
* @return boolean |
| 1000 |
*/ |
| 1001 |
public function index_exists( $index ) { |
| 1002 |
|
| 1003 |
$request_args = [ |
| 1004 |
'method' => 'HEAD', |
| 1005 |
]; |
| 1006 |
|
| 1007 |
$request = $this->remote_request( $index, $request_args, [], 'index_exists' ); |
| 1008 |
|
| 1009 |
// 200 means the index exists. |
| 1010 |
// 404 means the index was non-existent. |
| 1011 |
if ( ! is_wp_error( $request ) && ( 200 === wp_remote_retrieve_response_code( $request ) || 404 === wp_remote_retrieve_response_code( $request ) ) ) { |
| 1012 |
|
| 1013 |
if ( 404 === wp_remote_retrieve_response_code( $request ) ) { |
| 1014 |
return false; |
| 1015 |
} |
| 1016 |
|
| 1017 |
if ( 200 === wp_remote_retrieve_response_code( $request ) ) { |
| 1018 |
return true; |
| 1019 |
} |
| 1020 |
} |
| 1021 |
|
| 1022 |
return false; |
| 1023 |
} |
| 1024 |
|
| 1025 |
/** |
| 1026 |
* Bulk index Elasticsearch documents |
| 1027 |
* |
| 1028 |
* @param string $index Index name. |
| 1029 |
* @param string $type Index type. Previously this was used for index type. Now it's just passed to hooks for legacy reasons. |
| 1030 |
* @param string $body Encoded JSON. |
| 1031 |
* @since 3.0 |
| 1032 |
* @return WP_Error|array |
| 1033 |
*/ |
| 1034 |
public function bulk_index( $index, $type, $body ) { |
| 1035 |
/** |
| 1036 |
* Filter Elasticsearch bulk index request path |
| 1037 |
* |
| 1038 |
* @hook ep_bulk_index_request_path |
| 1039 |
* @param {string} Request path |
| 1040 |
* @param {string} $body Bulk index request body |
| 1041 |
* @param {string} $type Index type |
| 1042 |
* @return {string} New path |
| 1043 |
*/ |
| 1044 |
if ( version_compare( $this->get_elasticsearch_version(), '7.0', '<' ) ) { |
| 1045 |
$path = apply_filters( 'ep_bulk_index_request_path', $index . '/' . $type . '/_bulk', $body, $type ); |
| 1046 |
} else { |
| 1047 |
$path = apply_filters( 'ep_bulk_index_request_path', $index . '/_bulk', $body, $type ); |
| 1048 |
} |
| 1049 |
|
| 1050 |
$request_args = array( |
| 1051 |
'method' => 'POST', |
| 1052 |
'body' => $body, |
| 1053 |
'timeout' => apply_filters( 'ep_bulk_index_timeout', 30 ), |
| 1054 |
); |
| 1055 |
|
| 1056 |
$request = $this->remote_request( $path, $request_args, [], 'bulk_index' ); |
| 1057 |
|
| 1058 |
if ( is_wp_error( $request ) ) { |
| 1059 |
return $request; |
| 1060 |
} |
| 1061 |
|
| 1062 |
$response = wp_remote_retrieve_response_code( $request ); |
| 1063 |
|
| 1064 |
if ( 200 !== $response ) { |
| 1065 |
return new WP_Error( $response, wp_remote_retrieve_response_message( $request ), $request ); |
| 1066 |
} |
| 1067 |
|
| 1068 |
return json_decode( wp_remote_retrieve_body( $request ), true ); |
| 1069 |
} |
| 1070 |
|
| 1071 |
/** |
| 1072 |
* Return queries for debugging |
| 1073 |
* |
| 1074 |
* @since 1.8 |
| 1075 |
* @return array |
| 1076 |
*/ |
| 1077 |
public function get_query_log() { |
| 1078 |
return $this->queries; |
| 1079 |
} |
| 1080 |
|
| 1081 |
/** |
| 1082 |
* Wrapper for wp_remote_request |
| 1083 |
* |
| 1084 |
* This is a wrapper function for wp_remote_request to account for request failures. |
| 1085 |
* |
| 1086 |
* @since 1.6 |
| 1087 |
* |
| 1088 |
* @param string $path Site URL to retrieve. |
| 1089 |
* @param array $args Optional. Request arguments. Default empty array. |
| 1090 |
* @param array $query_args Optional. The query args originally passed to WP_Query. |
| 1091 |
* @param string $type Type of request, used for debugging. |
| 1092 |
* |
| 1093 |
* @return WP_Error|array The response or WP_Error on failure. |
| 1094 |
*/ |
| 1095 |
public function remote_request( $path, $args = [], $query_args = [], $type = null ) { |
| 1096 |
|
| 1097 |
if ( empty( $args['method'] ) ) { |
| 1098 |
$args['method'] = 'GET'; |
| 1099 |
} |
| 1100 |
|
| 1101 |
// Checks for any previously set headers |
| 1102 |
$existing_headers = isset( $args['headers'] ) ? (array) $args['headers'] : []; |
| 1103 |
|
| 1104 |
// Add the API Header. |
| 1105 |
// Note that the "User Agent" header will be changed via WordPress's `http_headers_useragent` filter later. |
| 1106 |
$new_headers = $this->format_request_headers(); |
| 1107 |
|
| 1108 |
$args['headers'] = array_merge( $existing_headers, $new_headers ); |
| 1109 |
|
| 1110 |
/** |
| 1111 |
* Filter Elasticsearch args prior to remote request |
| 1112 |
* |
| 1113 |
* @hook ep_pre_request_args |
| 1114 |
* @since 3.6.4 |
| 1115 |
* @param {array} $args Request args |
| 1116 |
* @param {string} $path Site URL to retrieve |
| 1117 |
* @param {array} $query_args The query args originally passed to WP_Query. |
| 1118 |
* @param {string|null} $type Type of request, used for debugging. |
| 1119 |
* @return {array} New request args |
| 1120 |
*/ |
| 1121 |
$args = apply_filters( 'ep_pre_request_args', $args, $path, $query_args, $type ); |
| 1122 |
|
| 1123 |
$query = array( |
| 1124 |
'time_start' => microtime( true ), |
| 1125 |
'time_finish' => false, |
| 1126 |
'args' => $args, |
| 1127 |
'blocking' => true, |
| 1128 |
'failed_hosts' => [], |
| 1129 |
'request' => false, |
| 1130 |
'host' => Utils\get_host(), |
| 1131 |
'query_args' => $query_args, |
| 1132 |
); |
| 1133 |
|
| 1134 |
$request = false; |
| 1135 |
$failures = 0; |
| 1136 |
|
| 1137 |
add_filter( 'http_headers_useragent', [ $this, 'add_elasticpress_version_to_user_agent' ] ); |
| 1138 |
|
| 1139 |
// Optionally let us try back up hosts and account for failures. |
| 1140 |
while ( true ) { |
| 1141 |
/** |
| 1142 |
* Filter Elasticsearch host prior to remote request |
| 1143 |
* |
| 1144 |
* @hook ep_pre_request_host |
| 1145 |
* @param {string} Request host |
| 1146 |
* @param {int} $failures Number of current failures |
| 1147 |
* @param {string} $path Request path |
| 1148 |
* @param {array} $args Request arguments |
| 1149 |
* @return {string} New host |
| 1150 |
*/ |
| 1151 |
$query['host'] = apply_filters( 'ep_pre_request_host', $query['host'], $failures, $path, $args ); |
| 1152 |
|
| 1153 |
/** |
| 1154 |
* Filter Elasticsearch url prior to remote request |
| 1155 |
* |
| 1156 |
* @hook ep_pre_request_url |
| 1157 |
* @param {string} Request url |
| 1158 |
* @param {int} $failures Number of current failures |
| 1159 |
* @param {string} $host Request host |
| 1160 |
* @param {string} $path Request path |
| 1161 |
* @param {array} $args Request arguments |
| 1162 |
* @return {string} New url |
| 1163 |
*/ |
| 1164 |
$query['url'] = apply_filters( 'ep_pre_request_url', esc_url( trailingslashit( $query['host'] ) . $path ), $failures, $query['host'], $path, $args ); |
| 1165 |
|
| 1166 |
/** |
| 1167 |
* Filter whether remote request should be intercepted |
| 1168 |
* |
| 1169 |
* @hook ep_intercept_remote_request |
| 1170 |
* @param {boolean} $intercept True to intercept |
| 1171 |
* @return {boolean} New value |
| 1172 |
*/ |
| 1173 |
if ( true === apply_filters( 'ep_intercept_remote_request', false ) ) { |
| 1174 |
/** |
| 1175 |
* Filter intercepted request |
| 1176 |
* |
| 1177 |
* @hook ep_do_intercept_request |
| 1178 |
* @since 3.2.2 |
| 1179 |
* @since 3.6.5 added $type |
| 1180 |
* @param {array} $request New remote request response |
| 1181 |
* @param {array} $query Remote request arguments |
| 1182 |
* @param {args} $args Request arguments |
| 1183 |
* @param {int} $failures Number of failures |
| 1184 |
* @param {string} $type Type of request |
| 1185 |
* @return {array} New request |
| 1186 |
*/ |
| 1187 |
$request = apply_filters( 'ep_do_intercept_request', new WP_Error( 400, 'No Request defined' ), $query, $args, $failures, $type ); |
| 1188 |
} else { |
| 1189 |
$request = wp_remote_request( $query['url'], $args ); // try the existing host to avoid unnecessary calls. |
| 1190 |
} |
| 1191 |
|
| 1192 |
$request_response_code = (int) wp_remote_retrieve_response_code( $request ); |
| 1193 |
|
| 1194 |
$is_valid_res = ( $request_response_code >= 200 && $request_response_code <= 299 ); |
| 1195 |
$is_non_blocking_request = ( 0 === $request_response_code ); |
| 1196 |
|
| 1197 |
if ( false === $request || is_wp_error( $request ) || ( ! $is_valid_res && ! $is_non_blocking_request ) ) { |
| 1198 |
$failures++; |
| 1199 |
|
| 1200 |
/** |
| 1201 |
* Filter max number of times to attempt remote requests |
| 1202 |
* |
| 1203 |
* @hook ep_max_remote_request_tries |
| 1204 |
* @param {int} $tries Number of times to try |
| 1205 |
* @param {path} $path Request path |
| 1206 |
* @param {args} $args Request arguments |
| 1207 |
* @return {int} New number of tries |
| 1208 |
*/ |
| 1209 |
if ( $failures >= apply_filters( 'ep_max_remote_request_tries', 1, $path, $args ) ) { |
| 1210 |
break; |
| 1211 |
} |
| 1212 |
} else { |
| 1213 |
break; |
| 1214 |
} |
| 1215 |
} |
| 1216 |
|
| 1217 |
remove_filter( 'http_headers_useragent', [ $this, 'add_elasticpress_version_to_user_agent' ] ); |
| 1218 |
|
| 1219 |
// Return now if we're not blocking, since we won't have a response yet. |
| 1220 |
if ( isset( $args['blocking'] ) && false === $args['blocking'] ) { |
| 1221 |
$query['blocking'] = true; |
| 1222 |
$query['request'] = $request; |
| 1223 |
$this->add_query_log( $query ); |
| 1224 |
|
| 1225 |
return $request; |
| 1226 |
} |
| 1227 |
|
| 1228 |
$query['time_finish'] = microtime( true ); |
| 1229 |
$query['request'] = $request; |
| 1230 |
$this->add_query_log( $query ); |
| 1231 |
|
| 1232 |
/** |
| 1233 |
* Fires after Elasticsearch remote request |
| 1234 |
* |
| 1235 |
* @hook ep_remote_request |
| 1236 |
* @param {array} $query Remote request arguments |
| 1237 |
* @param {string} $type Request type |
| 1238 |
*/ |
| 1239 |
do_action( 'ep_remote_request', $query, $type ); |
| 1240 |
|
| 1241 |
return $request; |
| 1242 |
|
| 1243 |
} |
| 1244 |
|
| 1245 |
/** |
| 1246 |
* Parse response from Elasticsearch |
| 1247 |
* |
| 1248 |
* Determines if there is an issue or if the response is valid. |
| 1249 |
* |
| 1250 |
* @since 1.9 |
| 1251 |
* @param object $response JSON decoded response from Elasticsearch. |
| 1252 |
* @return array Contains the status message or the returned statistics. |
| 1253 |
*/ |
| 1254 |
public function parse_api_response( $response ) { |
| 1255 |
|
| 1256 |
if ( null === $response ) { |
| 1257 |
|
| 1258 |
return array( |
| 1259 |
'status' => false, |
| 1260 |
'msg' => esc_html__( 'Invalid response from ElasticPress server. Please contact your administrator.' ), |
| 1261 |
); |
| 1262 |
|
| 1263 |
} elseif ( |
| 1264 |
isset( $response->error ) && |
| 1265 |
( |
| 1266 |
( is_string( $response->error ) && stristr( $response->error, 'IndexMissingException' ) ) || |
| 1267 |
( isset( $response->error->reason ) && stristr( $response->error->reason, 'no such index' ) ) |
| 1268 |
) |
| 1269 |
) { |
| 1270 |
|
| 1271 |
if ( is_multisite() ) { |
| 1272 |
|
| 1273 |
$error = __( 'Site not indexed. <p>Please run: <code>wp elasticpress index --setup --network-wide</code> using WP-CLI. Or use the index button on the left of this screen.</p>', 'elasticpress' ); |
| 1274 |
|
| 1275 |
} else { |
| 1276 |
|
| 1277 |
$error = __( 'Site not indexed. <p>Please run: <code>wp elasticpress index --setup</code> using WP-CLI. Or use the index button on the left of this screen.</p>', 'elasticpress' ); |
| 1278 |
|
| 1279 |
} |
| 1280 |
|
| 1281 |
return array( |
| 1282 |
'status' => false, |
| 1283 |
'msg' => $error, |
| 1284 |
); |
| 1285 |
|
| 1286 |
} |
| 1287 |
|
| 1288 |
return array( |
| 1289 |
'status' => true, |
| 1290 |
'data' => $response->_all->primaries->indexing, |
| 1291 |
); |
| 1292 |
|
| 1293 |
} |
| 1294 |
|
| 1295 |
/** |
| 1296 |
* Set ES plugins and version, detect server type, and cache everything |
| 1297 |
* |
| 1298 |
* @since 4.2.1 |
| 1299 |
* @param bool $force Bust cache or not. |
| 1300 |
* @return array |
| 1301 |
*/ |
| 1302 |
public function set_elasticsearch_info( $force = false ) { |
| 1303 |
if ( empty( Utils\get_host() ) ) { |
| 1304 |
return; |
| 1305 |
} |
| 1306 |
|
| 1307 |
if ( ! $force && null !== $this->elasticsearch_version && null !== $this->elasticsearch_plugins ) { |
| 1308 |
return; |
| 1309 |
} |
| 1310 |
|
| 1311 |
// Get ES info from cache if available. If we are forcing, then skip cache check. |
| 1312 |
if ( ! $force ) { |
| 1313 |
if ( defined( 'EP_IS_NETWORK' ) && EP_IS_NETWORK ) { |
| 1314 |
$es_info = get_site_transient( 'ep_es_info' ); |
| 1315 |
} else { |
| 1316 |
$es_info = get_transient( 'ep_es_info' ); |
| 1317 |
} |
| 1318 |
if ( ! empty( $es_info ) ) { |
| 1319 |
$this->elasticsearch_version = $es_info['version']; |
| 1320 |
$this->elasticsearch_plugins = $es_info['plugins']; |
| 1321 |
$this->server_type = $es_info['server_type']; |
| 1322 |
return; |
| 1323 |
} |
| 1324 |
} |
| 1325 |
|
| 1326 |
$path = '_nodes/plugins'; |
| 1327 |
|
| 1328 |
$request = $this->remote_request( $path, array( 'method' => 'GET' ) ); |
| 1329 |
|
| 1330 |
if ( is_wp_error( $request ) || 200 !== wp_remote_retrieve_response_code( $request ) ) { |
| 1331 |
$this->elasticsearch_version = false; |
| 1332 |
$this->elasticsearch_plugins = false; |
| 1333 |
|
| 1334 |
/** |
| 1335 |
* Try a different endpoint in case the plugins url is restricted |
| 1336 |
* |
| 1337 |
* @since 2.2.1 |
| 1338 |
*/ |
| 1339 |
|
| 1340 |
$request = $this->remote_request( '', array( 'method' => 'GET' ) ); |
| 1341 |
|
| 1342 |
if ( ! is_wp_error( $request ) && 200 === wp_remote_retrieve_response_code( $request ) ) { |
| 1343 |
$response_body = wp_remote_retrieve_body( $request ); |
| 1344 |
$response = json_decode( $response_body, true ); |
| 1345 |
|
| 1346 |
try { |
| 1347 |
$this->elasticsearch_version = $response['version']['number']; |
| 1348 |
if ( ! empty( $response['version']['distribution'] ) ) { |
| 1349 |
$this->server_type = $response['version']['distribution']; |
| 1350 |
} |
| 1351 |
} catch ( \Exception $e ) { |
| 1352 |
// Do nothing. |
| 1353 |
} |
| 1354 |
} |
| 1355 |
return; |
| 1356 |
} |
| 1357 |
|
| 1358 |
$response = json_decode( wp_remote_retrieve_body( $request ), true ); |
| 1359 |
|
| 1360 |
$this->elasticsearch_plugins = []; |
| 1361 |
$this->elasticsearch_version = false; |
| 1362 |
|
| 1363 |
if ( isset( $response['nodes'] ) ) { |
| 1364 |
$node = end( $response['nodes'] ); |
| 1365 |
// Save version of last node. We assume all nodes are same version. |
| 1366 |
$this->elasticsearch_version = $node['version']; |
| 1367 |
|
| 1368 |
if ( isset( $node['plugins'] ) && is_array( $node['plugins'] ) ) { |
| 1369 |
foreach ( $node['plugins'] as $plugin ) { |
| 1370 |
$this->elasticsearch_plugins[ $plugin['name'] ] = $plugin['version']; |
| 1371 |
} |
| 1372 |
} |
| 1373 |
if ( isset( $node['modules'] ) |
| 1374 |
&& is_array( $node['modules'] ) |
| 1375 |
&& ! empty( $node['modules'] ) |
| 1376 |
&& ! empty( $node['modules'][0]['opensearch_version'] ) |
| 1377 |
) { |
| 1378 |
$this->server_type = 'opensearch'; |
| 1379 |
} |
| 1380 |
} |
| 1381 |
|
| 1382 |
/** |
| 1383 |
* Cache ES info |
| 1384 |
* |
| 1385 |
* @since 2.3.1 |
| 1386 |
*/ |
| 1387 |
$this->cache_elasticsearch_info(); |
| 1388 |
} |
| 1389 |
|
| 1390 |
/** |
| 1391 |
* Return ES plugins, version and type. |
| 1392 |
* |
| 1393 |
* This function also sets those values in the object instance, getting it from cache |
| 1394 |
* or not, according to `$force` value. |
| 1395 |
* |
| 1396 |
* @param bool $force Bust cache or not. |
| 1397 |
* @since 2.2 |
| 1398 |
* @return array |
| 1399 |
*/ |
| 1400 |
public function get_elasticsearch_info( $force = false ) { |
| 1401 |
$this->set_elasticsearch_info( $force ); |
| 1402 |
return [ |
| 1403 |
'plugins' => $this->elasticsearch_plugins, |
| 1404 |
'version' => $this->elasticsearch_version, |
| 1405 |
'server_type' => $this->server_type, |
| 1406 |
]; |
| 1407 |
} |
| 1408 |
|
| 1409 |
/** |
| 1410 |
* Cache the ES info. |
| 1411 |
* |
| 1412 |
* @since 4.2.1 |
| 1413 |
*/ |
| 1414 |
protected function cache_elasticsearch_info() { |
| 1415 |
/** |
| 1416 |
* Filter elasticsearch info cache expiration |
| 1417 |
* |
| 1418 |
* @hook ep_es_info_cache_expiration |
| 1419 |
* @param {int} $time Cache time in seconds |
| 1420 |
* @return {int} New cache time |
| 1421 |
*/ |
| 1422 |
if ( defined( 'EP_IS_NETWORK' ) && EP_IS_NETWORK ) { |
| 1423 |
set_site_transient( |
| 1424 |
'ep_es_info', |
| 1425 |
array( |
| 1426 |
'version' => $this->elasticsearch_version, |
| 1427 |
'plugins' => $this->elasticsearch_plugins, |
| 1428 |
'server_type' => $this->server_type, |
| 1429 |
), |
| 1430 |
apply_filters( 'ep_es_info_cache_expiration', ( 5 * MINUTE_IN_SECONDS ) ) |
| 1431 |
); |
| 1432 |
} else { |
| 1433 |
set_transient( |
| 1434 |
'ep_es_info', |
| 1435 |
array( |
| 1436 |
'version' => $this->elasticsearch_version, |
| 1437 |
'plugins' => $this->elasticsearch_plugins, |
| 1438 |
'server_type' => $this->server_type, |
| 1439 |
), |
| 1440 |
apply_filters( 'ep_es_info_cache_expiration', ( 5 * MINUTE_IN_SECONDS ) ) |
| 1441 |
); |
| 1442 |
} |
| 1443 |
} |
| 1444 |
|
| 1445 |
/** |
| 1446 |
* Get cluster status |
| 1447 |
* |
| 1448 |
* Retrieves cluster stats from Elasticsearch. |
| 1449 |
* |
| 1450 |
* @since 1.9 |
| 1451 |
* @return array Contains the status message or the returned statistics. |
| 1452 |
*/ |
| 1453 |
public function get_cluster_status() { |
| 1454 |
|
| 1455 |
if ( is_wp_error( Utils\get_host() ) ) { |
| 1456 |
|
| 1457 |
return array( |
| 1458 |
'status' => false, |
| 1459 |
'msg' => esc_html__( 'Elasticsearch Host is not available.', 'elasticpress' ), |
| 1460 |
); |
| 1461 |
|
| 1462 |
} else { |
| 1463 |
|
| 1464 |
$request = $this->remote_request( '_cluster/stats', array( 'method' => 'GET' ) ); |
| 1465 |
|
| 1466 |
if ( ! is_wp_error( $request ) ) { |
| 1467 |
|
| 1468 |
$response = json_decode( wp_remote_retrieve_body( $request ) ); |
| 1469 |
|
| 1470 |
return $response; |
| 1471 |
|
| 1472 |
} |
| 1473 |
|
| 1474 |
return array( |
| 1475 |
'status' => false, |
| 1476 |
'msg' => $request->get_error_message(), |
| 1477 |
); |
| 1478 |
|
| 1479 |
} |
| 1480 |
} |
| 1481 |
|
| 1482 |
/** |
| 1483 |
* Get an Elasticsearch pipeline |
| 1484 |
* |
| 1485 |
* @param string $id Id of pipeline. |
| 1486 |
* @since 2.3 |
| 1487 |
* @return WP_Error|bool|array |
| 1488 |
*/ |
| 1489 |
public function get_pipeline( $id ) { |
| 1490 |
$path = '_ingest/pipeline/' . $id; |
| 1491 |
|
| 1492 |
$request_args = array( |
| 1493 |
'method' => 'GET', |
| 1494 |
); |
| 1495 |
|
| 1496 |
/** |
| 1497 |
* Filter get pipeline request arguments |
| 1498 |
* |
| 1499 |
* @hook ep_get_pipeline_args |
| 1500 |
* @param {array} $request_args Request arguments |
| 1501 |
* @return {array} New arguments |
| 1502 |
*/ |
| 1503 |
$request = $this->remote_request( $path, apply_filters( 'ep_get_pipeline_args', $request_args ), [], 'get_pipeline' ); |
| 1504 |
|
| 1505 |
if ( is_wp_error( $request ) ) { |
| 1506 |
return $request; |
| 1507 |
} |
| 1508 |
|
| 1509 |
$response = wp_remote_retrieve_response_code( $request ); |
| 1510 |
|
| 1511 |
if ( 200 !== $response ) { |
| 1512 |
return new WP_Error( $response, wp_remote_retrieve_response_message( $request ), $request ); |
| 1513 |
} |
| 1514 |
|
| 1515 |
$body = json_decode( wp_remote_retrieve_body( $request ), true ); |
| 1516 |
|
| 1517 |
if ( empty( $body ) ) { |
| 1518 |
return false; |
| 1519 |
} |
| 1520 |
|
| 1521 |
return $body; |
| 1522 |
} |
| 1523 |
|
| 1524 |
/** |
| 1525 |
* Put an Elasticsearch pipeline |
| 1526 |
* |
| 1527 |
* @param string $id Pipeline id. |
| 1528 |
* @param array $args Args to send to ES. |
| 1529 |
* @since 2.3 |
| 1530 |
* @return WP_Error|bool |
| 1531 |
*/ |
| 1532 |
public function create_pipeline( $id, $args ) { |
| 1533 |
$path = '_ingest/pipeline/' . $id; |
| 1534 |
|
| 1535 |
$request_args = array( |
| 1536 |
'body' => wp_json_encode( $args ), |
| 1537 |
'method' => 'PUT', |
| 1538 |
); |
| 1539 |
|
| 1540 |
/** |
| 1541 |
* Filter create pipeline request arguments |
| 1542 |
* |
| 1543 |
* @hook ep_create_pipeline_args |
| 1544 |
* @param {array} $request_args Request arguments |
| 1545 |
* @return {array} New arguments |
| 1546 |
*/ |
| 1547 |
$request = $this->remote_request( $path, apply_filters( 'ep_create_pipeline_args', $request_args ), [], 'create_pipeline' ); |
| 1548 |
|
| 1549 |
if ( is_wp_error( $request ) ) { |
| 1550 |
return $request; |
| 1551 |
} |
| 1552 |
|
| 1553 |
$response = wp_remote_retrieve_response_code( $request ); |
| 1554 |
|
| 1555 |
if ( 200 > $response || 300 <= $response ) { |
| 1556 |
return new WP_Error( $response, wp_remote_retrieve_response_message( $request ), $request ); |
| 1557 |
} |
| 1558 |
|
| 1559 |
$body = json_decode( wp_remote_retrieve_body( $request ), true ); |
| 1560 |
|
| 1561 |
if ( empty( $body ) ) { |
| 1562 |
return false; |
| 1563 |
} |
| 1564 |
|
| 1565 |
return true; |
| 1566 |
} |
| 1567 |
|
| 1568 |
/** |
| 1569 |
* Conditionally add the ElasticPress version to the User Agent string. |
| 1570 |
* |
| 1571 |
* @since 3.6.1 |
| 1572 |
* @param string $user_agent Original User Agent. |
| 1573 |
* @return string |
| 1574 |
*/ |
| 1575 |
public function add_elasticpress_version_to_user_agent( $user_agent ) { |
| 1576 |
/** |
| 1577 |
* Filter the User Agent header when submitting requests to Elasticsearch. |
| 1578 |
* |
| 1579 |
* @hook ep_remote_request_add_ep_user_agent |
| 1580 |
* @param {bool} $should_add_ep_verion Whether the ElasticPress version should be added to the User Agent string. |
| 1581 |
* @return {bool} New value |
| 1582 |
* @since 3.6.1 |
| 1583 |
*/ |
| 1584 |
if ( apply_filters( 'ep_remote_request_add_ep_user_agent', Utils\is_epio() ) ) { |
| 1585 |
$end_part = '; ' . get_bloginfo( 'url' ); |
| 1586 |
$user_agent = str_replace( |
| 1587 |
$end_part, |
| 1588 |
' (ElasticPress/' . EP_VERSION . ')' . $end_part, |
| 1589 |
$user_agent |
| 1590 |
); |
| 1591 |
} |
| 1592 |
return $user_agent; |
| 1593 |
} |
| 1594 |
|
| 1595 |
/** |
| 1596 |
* Query logging. Don't log anything to the queries property when |
| 1597 |
* WP_DEBUG is not enabled. Calls action 'ep_add_query_log' if you |
| 1598 |
* want to access the query outside of the ElasticPress plugin. This |
| 1599 |
* runs regardless of debufg settings. |
| 1600 |
* |
| 1601 |
* @param array $query Query to log. |
| 1602 |
*/ |
| 1603 |
protected function add_query_log( $query ) { |
| 1604 |
if ( ( defined( 'WP_DEBUG' ) && WP_DEBUG ) || ( defined( 'WP_EP_DEBUG' ) && WP_EP_DEBUG ) ) { |
| 1605 |
$this->queries[] = $query; |
| 1606 |
} |
| 1607 |
|
| 1608 |
/** |
| 1609 |
* Fires after item is added to the query log |
| 1610 |
* |
| 1611 |
* @hook ep_add_query_log |
| 1612 |
* @param {array} $query Query to log |
| 1613 |
*/ |
| 1614 |
do_action( 'ep_add_query_log', $query ); |
| 1615 |
} |
| 1616 |
|
| 1617 |
} |
| 1618 |
|
