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Parse.ly / 3.0.2
Parse.ly v3.0.2
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wp-parsely / src / class-parsely.php

class-parsely.php in Parse.ly 3.0.2, at src/class-parsely.php

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1 <?php
2 /**
3 * Parsely class
4 *
5 * @package Parsely
6 * @since 2.5.0
7 */
8
9 declare(strict_types=1);
10
11 namespace Parsely;
12
13 use WP_Post;
14 use WP_User;
15
16 /**
17 * Holds most of the logic for the plugin.
18 *
19 * @since 1.0.0
20 * @since 2.5.0 Moved from plugin root file to this file.
21 */
22 class Parsely {
23 /**
24 * Declare our constants
25 */
26 public const VERSION = PARSELY_VERSION;
27 public const MENU_SLUG = 'parsely'; // Defines the page param passed to options-general.php.
28 public const OPTIONS_KEY = 'parsely'; // Defines the key used to store options in the WP database.
29 public const CAPABILITY = 'manage_options'; // The capability required for the user to administer settings.
30
31 /**
32 * Declare some class properties
33 *
34 * @var array $option_defaults The defaults we need for the class.
35 */
36 private $option_defaults = array(
37 'apikey' => '',
38 'content_id_prefix' => '',
39 'api_secret' => '',
40 'use_top_level_cats' => false,
41 'custom_taxonomy_section' => 'category',
42 'cats_as_tags' => false,
43 'track_authenticated_users' => true,
44 'lowercase_tags' => true,
45 'force_https_canonicals' => false,
46 'track_post_types' => array( 'post' ),
47 'track_page_types' => array( 'page' ),
48 'disable_javascript' => false,
49 'disable_amp' => false,
50 'meta_type' => 'json_ld',
51 'logo' => '',
52 'metadata_secret' => '',
53 'parsely_wipe_metadata_cache' => false,
54 );
55
56 /**
57 * Declare post types that Parse.ly will process as "posts".
58 *
59 * @link https://www.parse.ly/help/integration/jsonld#distinguishing-between-posts-and-pages
60 *
61 * @since 2.5.0
62 * @var string[]
63 */
64 private $supported_jsonld_post_types = array(
65 'NewsArticle',
66 'Article',
67 'TechArticle',
68 'BlogPosting',
69 'LiveBlogPosting',
70 'Report',
71 'Review',
72 'CreativeWork',
73 );
74
75 /**
76 * Declare post types that Parse.ly will process as "non-posts".
77 *
78 * @link https://www.parse.ly/help/integration/jsonld#distinguishing-between-posts-and-pages
79 *
80 * @since 2.5.0
81 * @var string[]
82 */
83 private $supported_jsonld_non_post_types = array(
84 'WebPage',
85 'Event',
86 'Hotel',
87 'Restaurant',
88 'Movie',
89 );
90
91 /**
92 * Register action and filter hook callbacks.
93 *
94 * Also, immediately upgrade options if needed.
95 *
96 * @return void
97 */
98 public function run(): void {
99 // Run upgrade options if they exist for the version currently defined.
100 $options = $this->get_options();
101 if ( empty( $options['plugin_version'] ) || self::VERSION !== $options['plugin_version'] ) {
102 $method = 'upgrade_plugin_to_version_' . str_replace( '.', '_', self::VERSION );
103 if ( method_exists( $this, $method ) ) {
104 call_user_func_array( array( $this, $method ), array( $options ) );
105 }
106 // Update our version info.
107 $options['plugin_version'] = self::VERSION;
108 update_option( self::OPTIONS_KEY, $options );
109 }
110
111 // phpcs:ignore WordPress.WP.CronInterval.CronSchedulesInterval
112 add_filter( 'cron_schedules', array( $this, 'wpparsely_add_cron_interval' ) );
113 add_action( 'parsely_bulk_metas_update', array( $this, 'bulk_update_posts' ) );
114 add_action( 'save_post', array( $this, 'update_metadata_endpoint' ) );
115 add_action( 'wp_head', array( $this, 'insert_page_header_metadata' ) );
116 add_action( 'wp_enqueue_scripts', array( $this, 'wp_parsely_style_init' ) );
117 }
118
119 /**
120 * Adds 10 minute cron interval.
121 *
122 * @param array $schedules WP schedules array.
123 * @return array
124 */
125 public function wpparsely_add_cron_interval( array $schedules ): array {
126 $schedules['everytenminutes'] = array(
127 'interval' => 600, // time in seconds.
128 'display' => __( 'Every 10 Minutes', 'wp-parsely' ),
129 );
130 return $schedules;
131 }
132
133 /**
134 * Initialize Parse.ly WordPress style.
135 *
136 * @return void
137 */
138 public function wp_parsely_style_init(): void {
139 wp_register_style( 'wp-parsely-style', plugin_dir_url( PARSELY_FILE ) . 'wp-parsely.css', array(), self::VERSION );
140 }
141
142 /**
143 * Actually inserts the code for the <meta name='parsely-page'> parameter within the <head></head> tag.
144 *
145 * @since 3.0.0
146 *
147 * @return void
148 */
149 public function insert_page_header_metadata(): void {
150 /**
151 * Filters whether the Parse.ly meta tags should be inserted in the page.
152 *
153 * By default, the tags are inserted.
154 *
155 * @since 3.0.0
156 *
157 * @param bool $insert_metadata True to insert the metadata, false otherwise.
158 */
159 if ( ! apply_filters( 'wp_parsely_should_insert_metadata', true ) ) {
160 return;
161 }
162
163 $parsely_options = $this->get_options();
164
165 if (
166 $this->api_key_is_missing() ||
167
168 // Chosen not to track logged-in users.
169 ( ! $parsely_options['track_authenticated_users'] && $this->parsely_is_user_logged_in() ) ||
170
171 // 404 pages are not tracked.
172 is_404() ||
173
174 // Search pages are not tracked.
175 is_search()
176 ) {
177 return;
178 }
179
180 global $post;
181
182 // We can't construct the metadata without a valid post object.
183 if ( empty( $post ) ) {
184 return;
185 }
186
187 // Assign default values for LD+JSON
188 // TODO: Mapping of an install's post types to Parse.ly post types (namely page/post).
189 $parsely_page = $this->construct_parsely_metadata( $parsely_options, $post );
190
191 // Something went wrong - abort.
192 if ( empty( $parsely_page ) || ! isset( $parsely_page['headline'] ) ) {
193 return;
194 }
195
196 echo "\n" . '<!-- BEGIN Parse.ly ' . esc_html( self::VERSION ) . ' -->' . "\n";
197
198 // Insert JSON-LD or repeated metas.
199 if ( 'json_ld' === $parsely_options['meta_type'] ) {
200 include plugin_dir_path( PARSELY_FILE ) . 'views/json-ld.php';
201 } else {
202 // Assume `meta_type` is `repeated_metas`.
203 $parsely_post_type = $this->convert_jsonld_to_parsely_type( $parsely_page['@type'] );
204 if ( isset( $parsely_page['keywords'] ) && is_array( $parsely_page['keywords'] ) ) {
205 $parsely_page['keywords'] = implode( ',', $parsely_page['keywords'] );
206 }
207
208 $parsely_metas = array(
209 'title' => $parsely_page['headline'] ?? null,
210 'link' => $parsely_page['url'] ?? null,
211 'type' => $parsely_post_type,
212 'image-url' => $parsely_page['thumbnailUrl'] ?? null,
213 'pub-date' => $parsely_page['datePublished'] ?? null,
214 'section' => $parsely_page['articleSection'] ?? null,
215 'tags' => $parsely_page['keywords'] ?? null,
216 'author' => isset( $parsely_page['author'] ),
217 );
218 $parsely_metas = array_filter( $parsely_metas, array( $this, 'filter_empty_and_not_string_from_array' ) );
219
220 if ( isset( $parsely_page['author'] ) ) {
221 $parsely_page_authors = wp_list_pluck( $parsely_page['author'], 'name' );
222 $parsely_page_authors = array_filter( $parsely_page_authors, array( $this, 'filter_empty_and_not_string_from_array' ) );
223 }
224
225 include plugin_dir_path( PARSELY_FILE ) . 'views/repeated-metas.php';
226 }
227
228 // Add any custom metadata.
229 if ( isset( $parsely_page['custom_metadata'] ) ) {
230 include plugin_dir_path( PARSELY_FILE ) . 'views/custom-metadata.php';
231 }
232
233 echo '<!-- END Parse.ly -->' . "\n\n";
234 }
235
236 /**
237 * Deprecated. Echoes the metadata into the page, and returns the inserted values.
238 *
239 * To just echo the metadata, use the `insert_page_header_metadata()` method.
240 * To get the metadata to be inserted, use the `construct_parsely_metadata()` method.
241 *
242 * @deprecated 3.0.0
243 * @see construct_parsely_metadata()
244 *
245 * @return array
246 */
247 public function insert_parsely_page(): array {
248 _deprecated_function( __FUNCTION__, '3.0', 'construct_parsely_metadata()' );
249 $this->insert_page_header_metadata();
250
251 global $post;
252 return $this->construct_parsely_metadata( $this->get_options(), $post );
253 }
254
255 /**
256 * Function to be used in `array_filter` to clean up repeated metas
257 *
258 * @param mixed $var Value to filter from the array.
259 * @return bool Returns true if the variable is not empty, and it's a string
260 */
261 private static function filter_empty_and_not_string_from_array( $var ): bool {
262 return ! empty( $var ) && is_string( $var );
263 }
264
265 /**
266 * Compare the post_status key against an allowed list (by default, only 'publish'ed content includes tracking data).
267 *
268 * @since 2.5.0
269 *
270 * @param int|WP_Post $post Which post object or ID to check.
271 * @return bool Should the post status be tracked for the provided post's post_type. By default, only 'publish' is allowed.
272 */
273 public static function post_has_trackable_status( $post ): bool {
274 static $cache = array();
275 $post_id = is_int( $post ) ? $post : $post->ID;
276 if ( isset( $cache[ $post_id ] ) ) {
277 return $cache[ $post_id ];
278 }
279
280 /**
281 * Filters whether the post password check should be skipped when getting the post trackable status.
282 *
283 * @since 3.0.1
284 *
285 * @param bool $skip True if the password check should be skipped.
286 * @param int|WP_Post $post Which post object or ID is being checked.
287 *
288 * @returns bool
289 */
290 $skip_password_check = apply_filters( 'wp_parsely_skip_post_password_check', false, $post );
291 if ( ! $skip_password_check && post_password_required( $post ) ) {
292 $cache[ $post_id ] = false;
293 return false;
294 }
295
296 /**
297 * Filters the statuses that are permitted to be tracked.
298 *
299 * By default, the only status tracked is 'publish'. Use this filter if you have other published content that has a different (custom) status.
300 *
301 * @since 2.5.0
302 *
303 * @param string[] $trackable_statuses The list of post statuses that are allowed to be tracked.
304 * @param int|WP_Post $post Which post object or ID is being checked.
305 */
306 $statuses = apply_filters( 'wp_parsely_trackable_statuses', array( 'publish' ), $post );
307 $cache[ $post_id ] = in_array( get_post_status( $post ), $statuses, true );
308 return $cache[ $post_id ];
309 }
310
311 /**
312 * Creates parsely metadata object from post metadata.
313 *
314 * @param array $parsely_options parsely_options array.
315 * @param WP_Post $post object.
316 * @return array
317 */
318 public function construct_parsely_metadata( array $parsely_options, WP_Post $post ): array {
319 $parsely_page = array(
320 '@context' => 'http://schema.org',
321 '@type' => 'WebPage',
322 );
323 $current_url = $this->get_current_url();
324 $queried_object_id = get_queried_object_id();
325
326 if ( is_front_page() && ! is_paged() ) {
327 $parsely_page['headline'] = $this->get_clean_parsely_page_value( get_bloginfo( 'name', 'raw' ) );
328 $parsely_page['url'] = home_url();
329 } elseif ( is_front_page() && is_paged() ) {
330 $parsely_page['headline'] = $this->get_clean_parsely_page_value( get_bloginfo( 'name', 'raw' ) );
331 $parsely_page['url'] = $current_url;
332 } elseif (
333 is_home() && (
334 ! ( 'page' === get_option( 'show_on_front' ) && ! get_option( 'page_on_front' ) ) ||
335 $queried_object_id && (int) get_option( 'page_for_posts' ) === $queried_object_id
336 )
337 ) {
338 $parsely_page['headline'] = get_the_title( get_option( 'page_for_posts', true ) );
339 $parsely_page['url'] = $current_url;
340 } elseif ( is_author() ) {
341 // TODO: why can't we have something like a WP_User object for all the other cases? Much nicer to deal with than functions.
342 $author = ( get_query_var( 'author_name' ) ) ? get_user_by( 'slug', get_query_var( 'author_name' ) ) : get_userdata( get_query_var( 'author' ) );
343 $parsely_page['headline'] = $this->get_clean_parsely_page_value( 'Author - ' . $author->data->display_name );
344 $parsely_page['url'] = $current_url;
345 } elseif ( is_category() || is_post_type_archive() || is_tax() ) {
346 $category = get_queried_object();
347 $parsely_page['headline'] = $this->get_clean_parsely_page_value( $category->name );
348 $parsely_page['url'] = $current_url;
349 } elseif ( is_date() ) {
350 if ( is_year() ) {
351 /* translators: %s: Archive year */
352 $parsely_page['headline'] = sprintf( __( 'Yearly Archive - %s', 'wp-parsely' ), get_the_time( 'Y' ) );
353 } elseif ( is_month() ) {
354 /* translators: %s: Archive month, formatted as F, Y */
355 $parsely_page['headline'] = sprintf( __( 'Monthly Archive - %s', 'wp-parsely' ), get_the_time( 'F, Y' ) );
356 } elseif ( is_day() ) {
357 /* translators: %s: Archive day, formatted as F jS, Y */
358 $parsely_page['headline'] = sprintf( __( 'Daily Archive - %s', 'wp-parsely' ), get_the_time( 'F jS, Y' ) );
359 } elseif ( is_time() ) {
360 /* translators: %s: Archive time, formatted as F jS g:i:s A */
361 $parsely_page['headline'] = sprintf( __( 'Hourly, Minutely, or Secondly Archive - %s', 'wp-parsely' ), get_the_time( 'F jS g:i:s A' ) );
362 }
363 $parsely_page['url'] = $current_url;
364 } elseif ( is_tag() ) {
365 $tag = single_tag_title( '', false );
366 if ( empty( $tag ) ) {
367 $tag = single_term_title( '', false );
368 }
369 /* translators: %s: Tag name */
370 $parsely_page['headline'] = $this->get_clean_parsely_page_value( sprintf( __( 'Tagged - %s', 'wp-parsely' ), $tag ) );
371 $parsely_page['url'] = $current_url;
372 } elseif ( in_array( get_post_type( $post ), $parsely_options['track_post_types'], true ) && self::post_has_trackable_status( $post ) ) {
373 $authors = $this->get_author_names( $post );
374 $category = $this->get_category_name( $post, $parsely_options );
375
376 if ( has_post_thumbnail( $post ) ) {
377 $image_id = get_post_thumbnail_id( $post );
378 $image_url = wp_get_attachment_image_src( $image_id );
379 $image_url = $image_url[0];
380 } else {
381 $image_url = $this->get_first_image( $post );
382 }
383
384 $tags = $this->get_tags( $post->ID );
385 if ( $parsely_options['cats_as_tags'] ) {
386 $tags = array_merge( $tags, $this->get_categories( $post->ID ) );
387 // add custom taxonomy values.
388 $tags = array_merge( $tags, $this->get_custom_taxonomy_values( $post, $parsely_options ) );
389 }
390 // the function 'mb_strtolower' is not enabled by default in php, so this check
391 // falls back to the native php function 'strtolower' if necessary.
392 if ( function_exists( 'mb_strtolower' ) ) {
393 $lowercase_callback = 'mb_strtolower';
394 } else {
395 $lowercase_callback = 'strtolower';
396 }
397 if ( $parsely_options['lowercase_tags'] ) {
398 $tags = array_map( $lowercase_callback, $tags );
399 }
400
401 /**
402 * Filters the post tags that are used as metadata keywords.
403 *
404 * @since 1.8.0
405 *
406 * @param string[] $tags Post tags.
407 * @param int $ID Post ID.
408 */
409 $tags = apply_filters( 'wp_parsely_post_tags', $tags, $post->ID );
410 $tags = array_map( array( $this, 'get_clean_parsely_page_value' ), $tags );
411 $tags = array_values( array_unique( $tags ) );
412
413 /**
414 * Filters the JSON-LD @type.
415 *
416 * @since 2.5.0
417 *
418 * @param array $jsonld_type JSON-LD @type value, default is NewsArticle.
419 * @param int $id Post ID.
420 * @param string $post_type The Post type in WordPress.
421 */
422 $type = (string) apply_filters( 'wp_parsely_post_type', 'NewsArticle', $post->ID, $post->post_type );
423 $supported_types = array_merge( $this->supported_jsonld_post_types, $this->supported_jsonld_non_post_types );
424
425 // Validate type before passing it further as an invalid type will not be recognized by Parse.ly.
426 if ( ! in_array( $type, $supported_types ) ) {
427 $error = sprintf(
428 /* translators: 1: JSON @type like NewsArticle, 2: URL */
429 __( '@type %1$s is not supported by Parse.ly. Please use a type mentioned in %2$s', 'wp-parsely' ),
430 $type,
431 'https://www.parse.ly/help/integration/jsonld#distinguishing-between-posts-and-pages'
432 );
433 // phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_trigger_error
434 trigger_error( esc_html( $error ), E_USER_WARNING );
435 $type = 'NewsArticle';
436 }
437
438 $parsely_page['@type'] = $type;
439 $parsely_page['mainEntityOfPage'] = array(
440 '@type' => 'WebPage',
441 '@id' => $this->get_current_url( 'post' ),
442 );
443 $parsely_page['headline'] = $this->get_clean_parsely_page_value( get_the_title( $post ) );
444 $parsely_page['url'] = $this->get_current_url( 'post', $post->ID );
445 $parsely_page['thumbnailUrl'] = $image_url;
446 $parsely_page['image'] = array(
447 '@type' => 'ImageObject',
448 'url' => $image_url,
449 );
450
451 $this->set_metadata_post_times( $parsely_page, $post );
452
453 $parsely_page['articleSection'] = $category;
454 $author_objects = array();
455 foreach ( $authors as $author ) {
456 $author_tag = array(
457 '@type' => 'Person',
458 'name' => $author,
459 );
460 $author_objects[] = $author_tag;
461 }
462 $parsely_page['author'] = $author_objects;
463 $parsely_page['creator'] = $authors;
464 $parsely_page['publisher'] = array(
465 '@type' => 'Organization',
466 'name' => get_bloginfo( 'name' ),
467 'logo' => $parsely_options['logo'],
468 );
469 $parsely_page['keywords'] = $tags;
470 } elseif ( in_array( get_post_type(), $parsely_options['track_page_types'], true ) && self::post_has_trackable_status( $post ) ) {
471 $parsely_page['headline'] = $this->get_clean_parsely_page_value( get_the_title( $post ) );
472 $parsely_page['url'] = $this->get_current_url( 'post' );
473 } elseif ( 'page' === get_option( 'show_on_front' ) && ! get_option( 'page_on_front' ) ) {
474 $parsely_page['headline'] = $this->get_clean_parsely_page_value( get_bloginfo( 'name', 'raw' ) );
475 $parsely_page['url'] = home_url();
476 }
477
478 /**
479 * Filters the structured metadata.
480 *
481 * @since 2.5.0
482 *
483 * @param array $parsely_page Existing structured metadata for a page.
484 * @param WP_Post $post Post object.
485 * @param array $parsely_options The Parsely options.
486 */
487 return apply_filters( 'wp_parsely_metadata', $parsely_page, $post, $parsely_options );
488 }
489
490 /**
491 * Sets all metadata values related to post time.
492 *
493 * @since 3.0.2
494 *
495 * @param array $metadata Array containing all metadata. It will be potentially mutated to add keys: dateCreated, dateModified, & datePublished.
496 * @param WP_Post $post Post object from which to extract time data.
497 * @return void
498 */
499 private function set_metadata_post_times( array &$metadata, WP_Post $post ): void {
500 $date_format = 'Y-m-d\TH:i:s\Z';
501 $post_created_gmt = get_post_time( $date_format, true, $post );
502
503 if ( false === $post_created_gmt ) {
504 return;
505 }
506
507 $metadata['dateCreated'] = $post_created_gmt;
508 $metadata['datePublished'] = $post_created_gmt;
509 $metadata['dateModified'] = $post_created_gmt;
510
511 $post_modified_gmt = get_post_modified_time( $date_format, true, $post );
512
513 if ( false !== $post_modified_gmt && $post_modified_gmt > $post_created_gmt ) {
514 $metadata['dateModified'] = $post_modified_gmt;
515 }
516 }
517
518 /**
519 * Updates the Parsely metadata endpoint with the new metadata of the post.
520 *
521 * @param int $post_id id of the post to update.
522 * @return void
523 */
524 public function update_metadata_endpoint( int $post_id ): void {
525 $parsely_options = $this->get_options();
526
527 if ( $this->api_key_is_missing() || empty( $parsely_options['metadata_secret'] ) ) {
528 return;
529 }
530
531 $post = get_post( $post_id );
532 $metadata = $this->construct_parsely_metadata( $parsely_options, $post );
533
534 $endpoint_metadata = array(
535 'canonical_url' => $metadata['url'],
536 'page_type' => $this->convert_jsonld_to_parsely_type( $metadata['@type'] ),
537 'title' => $metadata['headline'],
538 'image_url' => $metadata['thumbnailUrl'],
539 'pub_date_tmsp' => $metadata['datePublished'],
540 'section' => $metadata['articleSection'],
541 'authors' => $metadata['creator'],
542 'tags' => $metadata['keywords'],
543 );
544
545 $parsely_api_endpoint = 'https://api.parsely.com/v2/metadata/posts';
546 $parsely_metadata_secret = $parsely_options['metadata_secret'];
547 $headers = array(
548 'Content-Type' => 'application/json',
549 );
550 $body = wp_json_encode(
551 array(
552 'secret' => $parsely_metadata_secret,
553 'apikey' => $parsely_options['apikey'],
554 'metadata' => $endpoint_metadata,
555 )
556 );
557 $response = wp_remote_post(
558 $parsely_api_endpoint,
559 array(
560 'method' => 'POST',
561 'headers' => $headers,
562 'blocking' => false,
563 'body' => $body,
564 'data_format' => 'body',
565 )
566 );
567
568 if ( ! is_wp_error( $response ) ) {
569 $current_timestamp = time();
570 update_post_meta( $post_id, 'parsely_metadata_last_updated', $current_timestamp );
571 }
572 }
573
574 /**
575 * Updates posts with Parsely metadata api in bulk.
576 *
577 * @return void
578 */
579 public function bulk_update_posts(): void {
580 global $wpdb;
581 $parsely_options = $this->get_options();
582 $allowed_types = array_merge( $parsely_options['track_post_types'], $parsely_options['track_page_types'] );
583 $allowed_types_string = implode(
584 ', ',
585 array_map(
586 function( $v ) {
587 return "'" . esc_sql( $v ) . "'";
588 },
589 $allowed_types
590 )
591 );
592 $ids = wp_cache_get( 'parsely_post_ids_need_meta_updating' );
593 if ( false === $ids ) {
594 $ids = array();
595 // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery
596 $results = $wpdb->get_results(
597 $wpdb->prepare( "SELECT DISTINCT(id) FROM {$wpdb->posts} WHERE post_type IN (\" . %s . \") AND id NOT IN (SELECT post_id FROM {$wpdb->postmeta} WHERE meta_key = 'parsely_metadata_last_updated');", $allowed_types_string ),
598 ARRAY_N
599 );
600 foreach ( $results as $result ) {
601 array_push( $ids, $result[0] );
602 }
603 wp_cache_set( 'parsely_post_ids_need_meta_updating', $ids, '', 86400 );
604 }
605
606 for ( $i = 0; $i < 100; $i++ ) {
607 $post_id = array_pop( $ids );
608 if ( null === $post_id ) {
609 wp_clear_scheduled_hook( 'parsely_bulk_metas_update' );
610 break;
611 }
612 $this->update_metadata_endpoint( $post_id );
613 }
614 }
615
616 /**
617 * Get the cache buster value for script and styles.
618 *
619 * If WP_DEBUG is defined and truthy, and we're not running tests, then use a random number.
620 * Otherwise, use the plugin version.
621 *
622 * @since 2.5.0
623 *
624 * @return string Random number string or plugin version string.
625 */
626 public static function get_asset_cache_buster(): string {
627 static $cache_buster;
628 if ( isset( $cache_buster ) ) {
629 return $cache_buster;
630 }
631
632 $cache_buster = defined( 'WP_DEBUG' ) && WP_DEBUG && empty( 'WP_TESTS_DOMAIN' ) ? wp_rand() : PARSELY_VERSION;
633
634 /**
635 * Filters the cache buster value for linked scripts and styles.
636 *
637 * @since 2.5.0
638 *
639 * @param string $cache_buster Plugin version, unless WP_DEBUG is defined and truthy, and tests are not running.
640 */
641 return apply_filters( 'wp_parsely_cache_buster', (string) $cache_buster );
642 }
643
644 /**
645 * Returns the tags associated with this page or post
646 *
647 * @param int $post_id The id of the post you're trying to get tags for.
648 * @return array The tags of the post represented by the post id.
649 */
650 private function get_tags( int $post_id ): array {
651 $tags = array();
652 foreach ( wp_get_post_tags( $post_id ) as $wp_tag ) {
653 array_push( $tags, $wp_tag->name );
654 }
655
656 return $tags;
657 }
658
659 /**
660 * Returns an array of all the child categories for the current post
661 *
662 * @param int $post_id The id of the post you're trying to get categories for.
663 * @param string $delimiter What character will delimit the categories.
664 * @return array All the child categories of the current post.
665 */
666 private function get_categories( int $post_id, string $delimiter = '/' ): array {
667 $tags = array();
668 foreach ( get_the_category( $post_id ) as $category ) {
669 $hierarchy = get_category_parents( $category, false, $delimiter );
670 $hierarchy = rtrim( $hierarchy, '/' );
671 array_push( $tags, $hierarchy );
672 }
673 // take last element in the hierarchy, a string representing the full parent->child tree,
674 // and split it into individual category names.
675 $tags = explode( '/', end( $tags ) );
676 // remove uncategorized value from tags.
677 return array_diff( $tags, array( 'Uncategorized' ) );
678 }
679
680 /**
681 * Safely returns options for the plugin by assigning defaults contained in optionDefaults. As soon as actual
682 * options are saved, they override the defaults. This prevents us from having to do a lot of isset() checking
683 * on variables.
684 *
685 * @return array
686 */
687 public function get_options(): array {
688 $options = get_option( self::OPTIONS_KEY, $this->option_defaults );
689
690 if ( ! is_array( $options ) ) {
691 return $this->option_defaults;
692 }
693
694 return array_merge( $this->option_defaults, $options );
695 }
696
697 /**
698 * Returns a properly cleaned category/taxonomy value and will optionally use the top-level category/taxonomy value
699 * if so instructed via the `use_top_level_cats` option.
700 *
701 * @param WP_Post $post_obj The object for the post.
702 * @param array $parsely_options The parsely options.
703 * @return string Cleaned category name for the post in question.
704 */
705 private function get_category_name( WP_Post $post_obj, array $parsely_options ): string {
706 $taxonomy_dropdown_choice = get_the_terms( $post_obj->ID, $parsely_options['custom_taxonomy_section'] );
707 // Get top-level taxonomy name for chosen taxonomy and assign to $parent_name; it will be used
708 // as the category value if 'use_top_level_cats' option is checked.
709 // Assign as "Uncategorized" if no value is checked for the chosen taxonomy.
710 $category = 'Uncategorized';
711 if ( ! empty( $taxonomy_dropdown_choice ) ) {
712 if ( $parsely_options['use_top_level_cats'] ) {
713 $first_term = array_shift( $taxonomy_dropdown_choice );
714 $term_name = $this->get_top_level_term( $first_term->term_id, $first_term->taxonomy );
715 } else {
716 $term_name = $this->get_bottom_level_term( $post_obj->ID, $parsely_options['custom_taxonomy_section'] );
717 }
718
719 if ( $term_name ) {
720 $category = $term_name;
721 }
722 }
723
724 /**
725 * Filters the constructed category name that are used as metadata keywords.
726 *
727 * @since 1.8.0
728 *
729 * @param string $category Category name.
730 * @param WP_Post $post_obj Post object.
731 * @param array $parsely_options The Parsely options.
732 */
733 $category = apply_filters( 'wp_parsely_post_category', $category, $post_obj, $parsely_options );
734
735 return $this->get_clean_parsely_page_value( $category );
736 }
737
738 /**
739 * Return the top-most category/taxonomy value in a hierarcy given a taxonomy value's ID
740 * ( WordPress calls taxonomy values 'terms' ).
741 *
742 * @param int $term_id The id of the top level term.
743 * @param string $taxonomy_name The name of the taxonomy.
744 * @return string|false $parent The top level name of the category / taxonomy.
745 */
746 private function get_top_level_term( int $term_id, string $taxonomy_name ) {
747 $parent = get_term_by( 'id', $term_id, $taxonomy_name );
748 while ( false !== $parent && 0 !== $parent->parent ) {
749 $parent = get_term_by( 'id', $parent->parent, $taxonomy_name );
750 }
751 return $parent ? $parent->name : false;
752 }
753
754 /**
755 * Return the bottom-most category/taxonomy value in a hierarcy given a post ID
756 * ( WordPress calls taxonomy values 'terms' ).
757 *
758 * @param int $post_id The post id you're interested in.
759 * @param string $taxonomy_name The name of the taxonomy.
760 * @return string Name of the custom taxonomy.
761 */
762 private function get_bottom_level_term( int $post_id, string $taxonomy_name ): string {
763 $terms = get_the_terms( $post_id, $taxonomy_name );
764 $term_ids = is_array( $terms ) ? wp_list_pluck( $terms, 'term_id' ) : array();
765 $parents = is_array( $terms ) ? array_filter( wp_list_pluck( $terms, 'parent' ) ) : array();
766
767 // Get array of IDs of terms which are not parents.
768 $term_ids_not_parents = array_diff( $term_ids, $parents );
769 // Get corresponding term objects, which are mapped to array index keys.
770 $terms_not_parents = array_intersect_key( $terms, $term_ids_not_parents );
771 // remove array index keys.
772 $terms_not_parents_cleaned = array();
773 foreach ( $terms_not_parents as $index => $value ) {
774 array_push( $terms_not_parents_cleaned, $value );
775 }
776 // if you assign multiple child terms in a custom taxonomy, will only return the first.
777 return $terms_not_parents_cleaned[0]->name;
778 }
779
780 /**
781 * Get all term values from custom taxonomies.
782 *
783 * @param WP_Post $post_obj The post object.
784 * @param array $parsely_options Unused? The parsely options.
785 * @return array
786 */
787 private function get_custom_taxonomy_values( WP_Post $post_obj, array $parsely_options ): array {
788 // filter out default WordPress taxonomies.
789 $all_taxonomies = array_diff( get_taxonomies(), array( 'post_tag', 'nav_menu', 'author', 'link_category', 'post_format' ) );
790 $all_values = array();
791
792 if ( is_array( $all_taxonomies ) ) {
793 foreach ( $all_taxonomies as $taxonomy ) {
794 $custom_taxonomy_objects = get_the_terms( $post_obj->ID, $taxonomy );
795 if ( is_array( $custom_taxonomy_objects ) ) {
796 foreach ( $custom_taxonomy_objects as $custom_taxonomy_object ) {
797 array_push( $all_values, $custom_taxonomy_object->name );
798 }
799 }
800 }
801 }
802 return $all_values;
803 }
804
805 /**
806 * Returns a list of coauthors for a post assuming the Co-Authors Plus plugin is
807 * installed. Borrowed from
808 * https://github.com/Automattic/Co-Authors-Plus/blob/master/template-tags.php#L3-35
809 *
810 * @param int $post_id The id of the post.
811 * @return array
812 */
813 private function get_coauthor_names( int $post_id ): array {
814 $coauthors = array();
815 if ( class_exists( 'coauthors_plus' ) ) {
816 global $post, $post_ID, $coauthors_plus;
817
818 if ( ! $post_id && $post_ID ) {
819 $post_id = $post_ID;
820 }
821
822 if ( ! $post_id && $post ) {
823 $post_id = $post->ID;
824 }
825
826 if ( $post_id ) {
827 $coauthor_terms = get_the_terms( $post_id, $coauthors_plus->coauthor_taxonomy );
828
829 if ( is_array( $coauthor_terms ) && ! empty( $coauthor_terms ) ) {
830 foreach ( $coauthor_terms as $coauthor ) {
831 $coauthor_slug = preg_replace( '#^cap-#', '', $coauthor->slug );
832 $post_author = $coauthors_plus->get_coauthor_by( 'user_nicename', $coauthor_slug );
833 // In case the user has been deleted while plugin was deactivated.
834 if ( ! empty( $post_author ) ) {
835 $coauthors[] = new WP_User( $post_author );
836 }
837 }
838 } elseif ( ! $coauthors_plus->force_guest_authors ) {
839 if ( $post && $post_id === $post->ID ) {
840 $post_author = get_userdata( $post->post_author );
841 }
842 if ( ! empty( $post_author ) ) {
843 $coauthors[] = $post_author;
844 }
845 } // the empty else case is because if we force guest authors, we don't ever care what value wp_posts.post_author has.
846 }
847 }
848 return $coauthors;
849 }
850
851 /**
852 * Determine author name from display name, falling back to firstname
853 * lastname, then nickname and finally the nicename.
854 *
855 * @param ?WP_User $author The author of the post.
856 * @return string
857 */
858 private function get_author_name( ?WP_User $author ): string {
859 // gracefully handle situation where no author is available.
860 if ( empty( $author ) || ! is_object( $author ) ) {
861 return '';
862 }
863
864 $author_name = $author->display_name;
865 if ( ! empty( $author_name ) ) {
866 return $author_name;
867 }
868
869 $author_name = $author->user_firstname . ' ' . $author->user_lastname;
870 if ( ' ' !== $author_name ) {
871 return $author_name;
872 }
873
874 $author_name = $author->nickname;
875 if ( ! empty( $author_name ) ) {
876 return $author_name;
877 }
878
879 return $author->user_nicename;
880 }
881
882 /**
883 * Retrieve all the authors for a post as an array. Can include multiple
884 * authors if coauthors plugin is in use.
885 *
886 * @param WP_Post $post The post object.
887 * @return array
888 */
889 private function get_author_names( WP_Post $post ): array {
890 $authors = $this->get_coauthor_names( $post->ID );
891 if ( empty( $authors ) ) {
892 $post_author = get_user_by( 'id', $post->post_author );
893 if ( $post_author ) {
894 $authors = array( $post_author );
895 }
896 }
897
898 /**
899 * Filters the list of author WP_User objects for a post.
900 *
901 * @since 1.14.0
902 *
903 * @param WP_User[] $authors One or more authors as WP_User objects.
904 * @param WP_Post $post Post object.
905 */
906 $authors = apply_filters( 'wp_parsely_pre_authors', $authors, $post );
907
908 // Getting the author name for each author.
909 $authors = array_map( array( $this, 'get_author_name' ), $authors );
910
911 /**
912 * Filters the list of author names for a post.
913 *
914 * @since 1.14.0
915 *
916 * @param string[] $authors One or more author names.
917 * @param WP_Post $post Post object.
918 */
919 $authors = apply_filters( 'wp_parsely_post_authors', $authors, $post );
920 $authors = array_map( array( $this, 'get_clean_parsely_page_value' ), $authors );
921 return $authors;
922 }
923
924 /**
925 * Sanitize content
926 *
927 * @since 2.6.0
928 *
929 * @param string $val The content you'd like sanitized.
930 * @return string
931 */
932 public function get_clean_parsely_page_value( string $val ): string {
933 $val = str_replace( "\n", '', $val );
934 $val = str_replace( "\r", '', $val );
935 $val = wp_strip_all_tags( $val );
936 return trim( $val );
937 }
938
939 /**
940 * Get the URL of the plugin settings page.
941 *
942 * @return string
943 */
944 public static function get_settings_url(): string {
945 return admin_url( 'options-general.php?page=' . self::MENU_SLUG );
946 }
947
948 /**
949 * Get the URL of the current PHP script.
950 * A fall-back implementation to determine permalink
951 *
952 * @since 3.0.0 $parsely_type Default parameter changed to `non-post`.
953 *
954 * @param string $parsely_type Optional. Parse.ly post type you're interested in, either 'post' or 'non-post'. Default is 'non-post'.
955 * @param int $post_id Optional. ID of the post you want to get the URL for. Default is 0, which means the global `$post` is used.
956 * @return string
957 */
958 public function get_current_url( string $parsely_type = 'non-post', int $post_id = 0 ): string {
959 if ( 'post' === $parsely_type ) {
960 $permalink = (string) get_permalink( $post_id );
961
962 /**
963 * Filters the permalink for a post.
964 *
965 * @since 1.14.0
966 * @since 2.5.0 Added $post_id.
967 *
968 * @param string $permalink The permalink URL or false if post does not exist.
969 * @param string $parsely_type Parse.ly type ("post" or "non-post").
970 * @param int $post_id ID of the post you want to get the URL for. May be 0, so $permalink will be
971 * for the global $post.
972 */
973 $url = apply_filters( 'wp_parsely_permalink', $permalink, $parsely_type, $post_id );
974 } else {
975 $request_uri = isset( $_SERVER['REQUEST_URI'] )
976 ? sanitize_text_field( wp_unslash( $_SERVER['REQUEST_URI'] ) )
977 : '';
978
979 $url = home_url( $request_uri );
980 }
981
982 $options = $this->get_options();
983 return $options['force_https_canonicals']
984 ? str_replace( 'http://', 'https://', $url )
985 : str_replace( 'https://', 'http://', $url );
986 }
987
988 /**
989 * Get the first image from a post
990 * https://css-tricks.com/snippets/wordpress/get-the-first-image-from-a-post/
991 *
992 * @param WP_Post $post The post object you're interested in.
993 * @return string
994 */
995 public function get_first_image( WP_Post $post ): string {
996 ob_start();
997 ob_end_clean();
998 if ( preg_match_all( '/<img.+src=[\'"]( [^\'"]+ )[\'"].*>/i', $post->post_content, $matches ) ) {
999 return $matches[1][0];
1000 }
1001 return '';
1002 }
1003
1004 /**
1005 * Check to see if parsely user is logged in.
1006 *
1007 * @return bool
1008 */
1009 public function parsely_is_user_logged_in(): bool {
1010 // can't use $blog_id here because it futzes with the global $blog_id.
1011 $current_blog_id = get_current_blog_id();
1012 $current_user_id = get_current_user_id();
1013 return is_user_member_of_blog( $current_user_id, $current_blog_id );
1014 }
1015
1016 /**
1017 * Convert JSON-LD type to respective Parse.ly page type.
1018 *
1019 * If the JSON-LD type is one of the types Parse.ly supports as a "post", then "post" will be returned.
1020 * Otherwise, for "non-posts" and unknown types, "index" is returned.
1021 *
1022 * @since 2.5.0
1023 *
1024 * @see https://www.parse.ly/help/integration/metatags#field-description
1025 *
1026 * @param string $type JSON-LD type.
1027 * @return string "post" or "index".
1028 */
1029 public function convert_jsonld_to_parsely_type( string $type ): string {
1030 return in_array( $type, $this->supported_jsonld_post_types ) ? 'post' : 'index';
1031 }
1032
1033 /**
1034 * Determine if an API key is saved in the options.
1035 *
1036 * @since 2.6.0
1037 *
1038 * @return bool True is API key is set, false if it is missing.
1039 */
1040 public function api_key_is_set(): bool {
1041 $options = $this->get_options();
1042
1043 return (
1044 isset( $options['apikey'] ) &&
1045 is_string( $options['apikey'] ) &&
1046 '' !== $options['apikey']
1047 );
1048 }
1049
1050 /**
1051 * Determine if an API key is not saved in the options.
1052 *
1053 * @since 2.6.0
1054 *
1055 * @return bool True if API key is missing, false if it is set.
1056 */
1057 public function api_key_is_missing(): bool {
1058 return ! $this->api_key_is_set();
1059 }
1060
1061 /**
1062 * Get the API key if set.
1063 *
1064 * @since 2.6.0
1065 *
1066 * @return string API key if set, or empty string if not.
1067 */
1068 public function get_api_key(): string {
1069 $options = $this->get_options();
1070
1071 return $this->api_key_is_set() ? $options['apikey'] : '';
1072 }
1073 }
1074