| @@ -10,11 +10,99 @@ | ||
| 10 | 10 | * |
| 11 | 11 | * @package automattic/jetpack |
| 12 | 12 | */ |
| 13 | 13 | |
| 14 | +use Automattic\Block_Scanner; | |
| 15 | +use Automattic\Jetpack\Connection\Manager as Connection_Manager; | |
| 16 | +use Automattic\Jetpack\Current_Plan; | |
| 17 | +use Automattic\Jetpack\Post_Media\Images; | |
| 18 | +use Automattic\Jetpack\Status; | |
| 14 | 19 | use Automattic\Jetpack\Status\Host; |
| 15 | 20 | |
| 21 | +if ( ! defined( 'ABSPATH' ) ) { | |
| 22 | + exit( 0 ); | |
| 23 | +} | |
| 24 | + | |
| 16 | 25 | add_action( 'wp_head', 'jetpack_og_tags' ); |
| 26 | + | |
| 27 | +/** | |
| 28 | + * Keep Twitter Cards from analyzing the body of a gated post. | |
| 29 | + * | |
| 30 | + * Twitter_Cards::twitter_cards_tags() runs at priority 11 and, when a card type | |
| 31 | + * is already set, emits only the site default image instead of images and | |
| 32 | + * videos parsed out of the body. | |
| 33 | + * | |
| 34 | + * @since 16.2 | |
| 35 | + * | |
| 36 | + * @param array $tags Open Graph tags. | |
| 37 | + * @return array | |
| 38 | + */ | |
| 39 | +function jetpack_og_gate_twitter_cards( $tags ) { | |
| 40 | + /** This filter is documented in class.jetpack.php */ | |
| 41 | + if ( apply_filters( 'jetpack_disable_twitter_cards', false ) ) { | |
| 42 | + return $tags; | |
| 43 | + } | |
| 44 | + | |
| 45 | + if ( ! is_singular() ) { | |
| 46 | + return $tags; | |
| 47 | + } | |
| 48 | + | |
| 49 | + $post = get_post(); | |
| 50 | + if ( ! $post instanceof WP_Post || ! \Automattic\Jetpack\SEO\Content_Gate::is_gated( $post ) ) { | |
| 51 | + return $tags; | |
| 52 | + } | |
| 53 | + | |
| 54 | + if ( empty( $tags['twitter:text:title'] ) ) { | |
| 55 | + $tags['twitter:text:title'] = get_the_title( $post ); | |
| 56 | + } | |
| 57 | + | |
| 58 | + // Twitter_Cards stops once a card type is set, so carry the featured image | |
| 59 | + // across here; it is chosen separately and never parsed out of the body. | |
| 60 | + $card_type = 'summary'; | |
| 61 | + if ( empty( $tags['twitter:image'] ) ) { | |
| 62 | + $image = Images::get_image( | |
| 63 | + $post->ID, | |
| 64 | + array( | |
| 65 | + 'width' => 144, | |
| 66 | + 'height' => 144, | |
| 67 | + 'from_slideshow' => false, | |
| 68 | + 'from_gallery' => false, | |
| 69 | + 'from_attachment' => false, | |
| 70 | + 'from_blocks' => false, | |
| 71 | + 'from_html' => false, | |
| 72 | + ) | |
| 73 | + ); | |
| 74 | + | |
| 75 | + // Twitter's limits: 4096px maximum, and 300x157 minimum for a large card. | |
| 76 | + if ( | |
| 77 | + ! empty( $image['src'] ) | |
| 78 | + && isset( $image['src_width'] ) && isset( $image['src_height'] ) | |
| 79 | + && (int) $image['src_width'] <= 4096 | |
| 80 | + && (int) $image['src_height'] <= 4096 | |
| 81 | + ) { | |
| 82 | + if ( (int) $image['src_width'] >= 300 && (int) $image['src_height'] >= 157 ) { | |
| 83 | + $card_type = 'summary_large_image'; | |
| 84 | + $tags['twitter:image'] = esc_url( add_query_arg( 'w', 640, $image['src'] ) ); | |
| 85 | + } else { | |
| 86 | + $tags['twitter:image'] = esc_url( add_query_arg( 'w', 144, $image['src'] ) ); | |
| 87 | + } | |
| 88 | + | |
| 89 | + if ( ! empty( $image['alt_text'] ) ) { | |
| 90 | + $alt_length = 420; | |
| 91 | + $tags['twitter:image:alt'] = strlen( $image['alt_text'] ) > $alt_length | |
| 92 | + ? esc_attr( mb_substr( $image['alt_text'], 0, $alt_length ) . '…' ) | |
| 93 | + : esc_attr( $image['alt_text'] ); | |
| 94 | + } | |
| 95 | + } | |
| 96 | + } | |
| 97 | + | |
| 98 | + if ( empty( $tags['twitter:card'] ) ) { | |
| 99 | + $tags['twitter:card'] = $card_type; | |
| 100 | + } | |
| 101 | + | |
| 102 | + return $tags; | |
| 103 | +} | |
| 104 | +add_filter( 'jetpack_open_graph_tags', 'jetpack_og_gate_twitter_cards', 10 ); | |
| 17 | 105 | add_action( 'web_stories_story_head', 'jetpack_og_tags' ); |
| 18 | 106 | |
| 19 | 107 | // Add a Fediverse Open Graph Tag when an author has connected their Mastodon account. |
| 20 | 108 | add_filter( 'jetpack_open_graph_tags', 'jetpack_add_fediverse_creator_open_graph_tag', 10, 1 ); |
| @@ -98,16 +186,14 @@ | ||
| 98 | 186 | $tags['og:type'] = 'website'; |
| 99 | 187 | $tags['og:title'] = wp_get_document_title(); |
| 100 | 188 | |
| 101 | 189 | $archive = get_queried_object(); |
| 102 | - if ( ! empty( $archive ) ) { | |
| 103 | - if ( is_category() || is_tag() || is_tax() ) { | |
| 104 | - $tags['og:url'] = get_term_link( $archive->term_id, $archive->taxonomy ); | |
| 105 | - $tags['og:description'] = $archive->description; | |
| 106 | - } elseif ( is_post_type_archive() ) { | |
| 190 | + if ( $archive instanceof WP_Term ) { | |
| 191 | + $tags['og:url'] = get_term_link( $archive->term_id, $archive->taxonomy ); | |
| 192 | + $tags['og:description'] = $archive->description; | |
| 193 | + } elseif ( ! empty( $archive ) && is_post_type_archive() ) { | |
| 107 | 194 | $tags['og:url'] = get_post_type_archive_link( $archive->name ); |
| 108 | 195 | $tags['og:description'] = $archive->description; |
| 109 | - } | |
| 110 | 196 | } |
| 111 | 197 | } elseif ( is_singular() && is_a( $data, 'WP_Post' ) ) { |
| 112 | 198 | $tags['og:type'] = 'article'; |
| 113 | 199 | if ( empty( $data->post_title ) ) { |
| @@ -117,9 +203,9 @@ | ||
| 117 | 203 | $tags['og:title'] = wp_kses( apply_filters( 'the_title', $data->post_title, $data->ID ), array() ); |
| 118 | 204 | } |
| 119 | 205 | |
| 120 | 206 | $tags['og:url'] = get_permalink( $data->ID ); |
| 121 | - if ( ! post_password_required() ) { | |
| 207 | + if ( ! post_password_required( $data ) ) { | |
| 122 | 208 | /* |
| 123 | 209 | * If the post author set an excerpt, use that. |
| 124 | 210 | * Otherwise, pick the post content that comes before the More tag if there is one. |
| 125 | 211 | * Do not use the post content if it contains premium content. |
| @@ -125,11 +211,17 @@ | ||
| 125 | 211 | * Do not use the post content if it contains premium content. |
| 126 | 212 | */ |
| 127 | 213 | if ( ! empty( $data->post_excerpt ) ) { |
| 128 | 214 | $tags['og:description'] = jetpack_og_get_description( $data->post_excerpt ); |
| 129 | - } elseif ( ! has_block( 'premium-content/container', $data->post_content ) ) { | |
| 130 | - $excerpt = explode( '<!--more-->', $data->post_content )[0]; | |
| 131 | - $tags['og:description'] = jetpack_og_get_description( $excerpt ); | |
| 215 | + } else { | |
| 216 | + $content = \Automattic\Jetpack\SEO\Content_Gate::is_gated( $data ) | |
| 217 | + ? \Automattic\Jetpack\SEO\Content_Gate::public_teaser( $data ) | |
| 218 | + : $data->post_content; | |
| 219 | + | |
| 220 | + if ( '' !== $content ) { | |
| 221 | + $excerpt = explode( '<!--more-->', $content )[0]; | |
| 222 | + $tags['og:description'] = jetpack_og_get_description( $excerpt ); | |
| 223 | + } | |
| 132 | 224 | } |
| 133 | 225 | } |
| 134 | 226 | |
| 135 | 227 | $tags['article:published_time'] = gmdate( 'c', strtotime( $data->post_date_gmt ) ); |
| @@ -245,9 +337,9 @@ | ||
| 245 | 337 | |
| 246 | 338 | foreach ( (array) $tags as $tag_property => $tag_content ) { |
| 247 | 339 | // to accommodate multiple images. |
| 248 | 340 | $tag_content = (array) $tag_content; |
| 249 | - $tag_content = array_unique( $tag_content ); | |
| 341 | + $tag_content = array_unique( array_filter( $tag_content, 'is_scalar' ) ); | |
| 250 | 342 | |
| 251 | 343 | foreach ( $tag_content as $tag_content_single ) { |
| 252 | 344 | if ( empty( $tag_content_single ) && ! in_array( $tag_property, $allowed_empty_tags, true ) ) { |
| 253 | 345 | continue; // Only allow certain empty tags. |
| @@ -326,20 +418,28 @@ | ||
| 326 | 418 | if ( is_singular() && ! is_home() ) { |
| 327 | 419 | // Grab obvious image if post is an attachment page for an image. |
| 328 | 420 | if ( is_attachment( get_the_ID() ) && str_starts_with( get_post_mime_type(), 'image' ) ) { |
| 329 | 421 | $image['src'] = wp_get_attachment_url( get_the_ID() ); |
| 330 | - $image['alt_text'] = Jetpack_PostImages::get_alt_text( get_the_ID() ); | |
| 422 | + $image['alt_text'] = Images::get_alt_text( get_the_ID() ); | |
| 331 | 423 | } |
| 332 | 424 | |
| 333 | 425 | // Attempt to find something good for this post using our generalized PostImages code. |
| 334 | - if ( empty( $image ) && class_exists( 'Jetpack_PostImages' ) ) { | |
| 335 | - $post_image = Jetpack_PostImages::get_image( | |
| 336 | - get_the_ID(), | |
| 337 | - array( | |
| 338 | - 'width' => $width, | |
| 339 | - 'height' => $height, | |
| 340 | - ) | |
| 426 | + if ( empty( $image ) ) { | |
| 427 | + $image_args = array( | |
| 428 | + 'width' => $width, | |
| 429 | + 'height' => $height, | |
| 341 | 430 | ); |
| 431 | + // Every source but the featured image is parsed out of the body. | |
| 432 | + if ( \Automattic\Jetpack\SEO\Content_Gate::is_gated( get_post( get_the_ID() ) ) ) { | |
| 433 | + $image_args += array( | |
| 434 | + 'from_slideshow' => false, | |
| 435 | + 'from_gallery' => false, | |
| 436 | + 'from_attachment' => false, | |
| 437 | + 'from_blocks' => false, | |
| 438 | + 'from_html' => false, | |
| 439 | + ); | |
| 440 | + } | |
| 441 | + $post_image = Images::get_image( get_the_ID(), $image_args ); | |
| 342 | 442 | if ( ! empty( $post_image ) && is_array( $post_image ) ) { |
| 343 | 443 | $image['src'] = $post_image['src']; |
| 344 | 444 | if ( isset( $post_image['src_width'] ) && isset( $post_image['src_height'] ) ) { |
| 345 | 445 | $image['width'] = $post_image['src_width']; |
| @@ -352,30 +452,153 @@ | ||
| 352 | 452 | } |
| 353 | 453 | } elseif ( is_author() ) { |
| 354 | 454 | $author = get_queried_object(); |
| 355 | 455 | if ( is_a( $author, 'WP_User' ) ) { |
| 356 | - $image['src'] = get_avatar_url( | |
| 456 | + $image['src'] = get_avatar_url( | |
| 357 | 457 | $author->user_email, |
| 358 | 458 | array( |
| 359 | 459 | 'size' => $width, |
| 360 | 460 | ) |
| 361 | 461 | ); |
| 362 | - $image['alt_text'] = $author->display_name; | |
| 462 | + $image['alt_text'] = $author->display_name; | |
| 363 | 463 | } |
| 364 | 464 | } |
| 365 | 465 | |
| 466 | + /* | |
| 467 | + * Generate a fallback social image, | |
| 468 | + * dynamically generated based on the site name, | |
| 469 | + * a representative image of the site, | |
| 470 | + * and a custom template used by our Social Image Generator. | |
| 471 | + */ | |
| 472 | + if ( empty( $image ) ) { | |
| 473 | + $site_image = jetpack_og_get_fallback_social_image( $width, $height ); | |
| 474 | + if ( ! empty( $site_image ) ) { | |
| 475 | + $image['src'] = $site_image['src']; | |
| 476 | + $image['width'] = $site_image['width']; | |
| 477 | + $image['height'] = $site_image['height']; | |
| 478 | + } | |
| 479 | + } | |
| 480 | + | |
| 481 | + // If we didn't get an explicit alt tag from the image, set a default. | |
| 482 | + if ( empty( $image['alt_text'] ) ) { | |
| 483 | + /** | |
| 484 | + * Filter the default Open Graph image alt text, used when the Open Graph image from the post does not have an alt text. | |
| 485 | + * | |
| 486 | + * @since 10.4 | |
| 487 | + * | |
| 488 | + * @param string $str Default Open Graph image alt text. | |
| 489 | + */ | |
| 490 | + $image['alt_text'] = apply_filters( 'jetpack_open_graph_image_default_alt_text', '' ); | |
| 491 | + } | |
| 492 | + | |
| 493 | + return $image; | |
| 494 | +} | |
| 495 | + | |
| 496 | +/** | |
| 497 | + * Get a fallback social image for the site. | |
| 498 | + * | |
| 499 | + * @since 14.9 | |
| 500 | + * | |
| 501 | + * @param int $width The width of the image. | |
| 502 | + * @param int $height The height of the image. | |
| 503 | + * | |
| 504 | + * @return array The source ('src'), 'width', 'height', and source type of the image. | |
| 505 | + */ | |
| 506 | +function jetpack_og_get_fallback_social_image( $width, $height ) { | |
| 507 | + // Default template. | |
| 508 | + $template = 'edge'; | |
| 509 | + | |
| 510 | + // Let's get the site's representative image. | |
| 511 | + $site_image = jetpack_og_get_site_image( $width, $height ); | |
| 512 | + | |
| 513 | + /** | |
| 514 | + * Define your own site's representative image, | |
| 515 | + * to override any fallback image found by looking through site's logo, site icon, and blavatar. | |
| 516 | + * This will allow you to overwrite the default fallback image generated dynamically. | |
| 517 | + * | |
| 518 | + * @since 15.0 | |
| 519 | + * | |
| 520 | + * @param array $site_image Your own site's representative image. | |
| 521 | + * @param array $site_image The site's representative image picked by Jetpack. { | |
| 522 | + * @type string $src The source of the image. | |
| 523 | + * @type int $width The width of the image. | |
| 524 | + * @type int $height The height of the image. | |
| 525 | + * @type string $type The type of the image. | |
| 526 | + * } | |
| 527 | + */ | |
| 528 | + $custom_site_image = apply_filters( 'jetpack_og_default_site_image', array(), $site_image ); | |
| 529 | + if ( ! empty( $custom_site_image['src'] ) ) { | |
| 530 | + return $custom_site_image; | |
| 531 | + } | |
| 532 | + | |
| 533 | + if ( empty( $site_image['src'] ) ) { | |
| 534 | + // When using the default blank image, use a different template in Social Image Generator. | |
| 535 | + $template = 'highway'; | |
| 536 | + $site_image['src'] = jetpack_og_get_site_fallback_blank_image(); | |
| 537 | + } | |
| 538 | + | |
| 539 | + // Return the site image if we are in offline mode instead of attempting to generate a dynamic one. | |
| 540 | + if ( ( new Status() )->is_offline_mode() ) { | |
| 541 | + return $site_image; | |
| 542 | + } | |
| 543 | + | |
| 544 | + /* | |
| 545 | + * Only attempt to generate a dynamic fallback image | |
| 546 | + * if we have a healthy connection to WPCOM. | |
| 547 | + * and if the site has the right plan. | |
| 548 | + */ | |
| 549 | + if ( | |
| 550 | + ( ( new Host() )->is_wpcom_simple() | |
| 551 | + || ( new Connection_Manager() )->is_connected() | |
| 552 | + ) | |
| 553 | + && Current_Plan::supports( 'social-image-generator' ) | |
| 554 | + ) { | |
| 555 | + /** | |
| 556 | + * Allow filtering the template to use with Social Image Generator. | |
| 557 | + * Available templates: highway, dois, fullscreen, edge. | |
| 558 | + * | |
| 559 | + * @since 14.9 | |
| 560 | + * | |
| 561 | + * @param string $template The template to use. | |
| 562 | + */ | |
| 563 | + $template = apply_filters( 'jetpack_og_fallback_social_image_template', $template ); | |
| 564 | + | |
| 565 | + // Let's generate the image. | |
| 566 | + $site_image = jetpack_og_generate_fallback_social_image( $site_image, $template ); | |
| 567 | + } | |
| 568 | + | |
| 569 | + return $site_image; | |
| 570 | +} | |
| 571 | + | |
| 572 | +/** | |
| 573 | + * Get the site's representative image. | |
| 574 | + * | |
| 575 | + * @since 14.9 | |
| 576 | + * | |
| 577 | + * @param int $width The width of the image. | |
| 578 | + * @param int $height The height of the image. | |
| 579 | + * | |
| 580 | + * @return array The source ('src'), 'width', 'height', and source type of the image. | |
| 581 | + */ | |
| 582 | +function jetpack_og_get_site_image( $width, $height ) { | |
| 366 | 583 | // First fall back, blavatar. |
| 367 | - if ( empty( $image ) && function_exists( 'blavatar_domain' ) ) { | |
| 584 | + if ( function_exists( 'blavatar_domain' ) ) { | |
| 368 | 585 | $blavatar_domain = blavatar_domain( site_url() ); |
| 369 | 586 | if ( blavatar_exists( $blavatar_domain ) ) { |
| 370 | - $image['src'] = blavatar_url( $blavatar_domain, 'img', $width, false, true ); | |
| 371 | - $image['width'] = $width; | |
| 372 | - $image['height'] = $height; | |
| 587 | + return array( | |
| 588 | + 'src' => blavatar_url( $blavatar_domain, 'img', $width, false, true ), | |
| 589 | + 'width' => $width, | |
| 590 | + 'height' => $height, | |
| 591 | + 'type' => 'blavatar', | |
| 592 | + ); | |
| 373 | 593 | } |
| 374 | 594 | } |
| 375 | 595 | |
| 376 | 596 | // Second fall back, Site Logo. |
| 377 | - if ( empty( $image ) && ( function_exists( 'jetpack_has_site_logo' ) && jetpack_has_site_logo() ) ) { | |
| 597 | + if ( | |
| 598 | + function_exists( 'jetpack_has_site_logo' ) | |
| 599 | + && jetpack_has_site_logo() | |
| 600 | + ) { | |
| 378 | 601 | $image_id = jetpack_get_site_logo( 'id' ); |
| 379 | 602 | $logo = wp_get_attachment_image_src( $image_id, 'full' ); |
| 380 | 603 | if ( |
| 381 | 604 | isset( $logo[0] ) && isset( $logo[1] ) && isset( $logo[2] ) |
| @@ -380,17 +603,39 @@ | ||
| 380 | 603 | if ( |
| 381 | 604 | isset( $logo[0] ) && isset( $logo[1] ) && isset( $logo[2] ) |
| 382 | 605 | && ( _jetpack_og_get_image_validate_size( $logo[1], $logo[2], $width, $height ) ) |
| 383 | 606 | ) { |
| 384 | - $image['src'] = $logo[0]; | |
| 385 | - $image['width'] = $logo[1]; | |
| 386 | - $image['height'] = $logo[2]; | |
| 387 | - $image['alt_text'] = Jetpack_PostImages::get_alt_text( $image_id ); | |
| 607 | + return array( | |
| 608 | + 'src' => $logo[0], | |
| 609 | + 'width' => $logo[1], | |
| 610 | + 'height' => $logo[2], | |
| 611 | + 'type' => 'site_logo', | |
| 612 | + ); | |
| 388 | 613 | } |
| 389 | 614 | } |
| 390 | 615 | |
| 391 | - // Third fall back, Core Site Icon, if valid in size. | |
| 392 | - if ( empty( $image ) && has_site_icon() ) { | |
| 616 | + // Third fall back, Core's site logo. | |
| 617 | + if ( has_custom_logo() ) { | |
| 618 | + $custom_logo_id = get_theme_mod( 'custom_logo' ); | |
| 619 | + $sl_details = wp_get_attachment_image_src( | |
| 620 | + $custom_logo_id, | |
| 621 | + 'full' | |
| 622 | + ); | |
| 623 | + if ( | |
| 624 | + isset( $sl_details[0] ) && isset( $sl_details[1] ) && isset( $sl_details[2] ) | |
| 625 | + && ( _jetpack_og_get_image_validate_size( $sl_details[1], $sl_details[2], $width, $height ) ) | |
| 626 | + ) { | |
| 627 | + return array( | |
| 628 | + 'src' => $sl_details[0], | |
| 629 | + 'width' => $sl_details[1], | |
| 630 | + 'height' => $sl_details[2], | |
| 631 | + 'alt_text' => Images::get_alt_text( $custom_logo_id ), | |
| 632 | + ); | |
| 633 | + } | |
| 634 | + } | |
| 635 | + | |
| 636 | + // Fourth fall back, Core Site Icon, if valid in size. | |
| 637 | + if ( has_site_icon() ) { | |
| 393 | 638 | $image_id = get_option( 'site_icon' ); |
| 394 | 639 | $icon = wp_get_attachment_image_src( $image_id, 'full' ); |
| 395 | 640 | if ( |
| 396 | 641 | isset( $icon[0] ) && isset( $icon[1] ) && isset( $icon[2] ) |
| @@ -395,43 +640,163 @@ | ||
| 395 | 640 | if ( |
| 396 | 641 | isset( $icon[0] ) && isset( $icon[1] ) && isset( $icon[2] ) |
| 397 | 642 | && ( _jetpack_og_get_image_validate_size( $icon[1], $icon[2], $width, $height ) ) |
| 398 | 643 | ) { |
| 399 | - $image['src'] = $icon[0]; | |
| 400 | - $image['width'] = $icon[1]; | |
| 401 | - $image['height'] = $icon[2]; | |
| 402 | - $image['alt_text'] = Jetpack_PostImages::get_alt_text( $image_id ); | |
| 644 | + return array( | |
| 645 | + 'src' => $icon[0], | |
| 646 | + 'width' => $icon[1], | |
| 647 | + 'height' => $icon[2], | |
| 648 | + 'type' => 'site_icon', | |
| 649 | + ); | |
| 403 | 650 | } |
| 404 | 651 | } |
| 405 | 652 | |
| 406 | - // Final fall back, blank image. | |
| 407 | - if ( empty( $image ) ) { | |
| 408 | - /** | |
| 409 | - * Filter the default Open Graph Image tag, used when no Image can be found in a post. | |
| 410 | - * | |
| 411 | - * @since 3.0.0 | |
| 412 | - * | |
| 413 | - * @param string $str Default Image URL. | |
| 414 | - */ | |
| 415 | - $image['src'] = apply_filters( 'jetpack_open_graph_image_default', 'https://s0.wp.com/i/blank.jpg' ); | |
| 653 | + return array( | |
| 654 | + 'src' => '', | |
| 655 | + 'width' => $width, | |
| 656 | + 'height' => $height, | |
| 657 | + 'type' => 'blank', | |
| 658 | + ); | |
| 659 | +} | |
| 660 | + | |
| 661 | +/** | |
| 662 | + * Get the site's fallback image. | |
| 663 | + * | |
| 664 | + * @since 14.9 | |
| 665 | + * | |
| 666 | + * @return string | |
| 667 | + */ | |
| 668 | +function jetpack_og_get_site_fallback_blank_image() { | |
| 669 | + /** | |
| 670 | + * Filter the default Open Graph Image tag, used when no Image can be found in a post. | |
| 671 | + * | |
| 672 | + * @since 3.0.0 | |
| 673 | + * | |
| 674 | + * @param string $str Default Image URL. | |
| 675 | + */ | |
| 676 | + return apply_filters( 'jetpack_open_graph_image_default', 'https://s0.wp.com/i/blank.jpg' ); | |
| 677 | +} | |
| 678 | + | |
| 679 | +/** | |
| 680 | + * Get available templates for Social Image Generator. | |
| 681 | + * | |
| 682 | + * @since 14.9 | |
| 683 | + * | |
| 684 | + * @return array The available templates. | |
| 685 | + */ | |
| 686 | +function jetpack_og_get_available_templates() { | |
| 687 | + if ( ! class_exists( '\Automattic\Jetpack\Publicize\Social_Image_Generator\Templates' ) ) { | |
| 688 | + return array(); | |
| 416 | 689 | } |
| 417 | 690 | |
| 418 | - // If we didn't get an explicit alt tag from the image, set a default. | |
| 419 | - if ( empty( $image['alt_text'] ) ) { | |
| 420 | - /** | |
| 421 | - * Filter the default Open Graph image alt text, used when the Open Graph image from the post does not have an alt text. | |
| 422 | - * | |
| 423 | - * @since 10.4 | |
| 424 | - * | |
| 425 | - * @param string $str Default Open Graph image alt text. | |
| 426 | - */ | |
| 427 | - $image['alt_text'] = apply_filters( 'jetpack_open_graph_image_default_alt_text', '' ); | |
| 691 | + return \Automattic\Jetpack\Publicize\Social_Image_Generator\Templates::TEMPLATES; | |
| 692 | +} | |
| 693 | + | |
| 694 | +/** | |
| 695 | + * Get a social image token from Social Image Generator. | |
| 696 | + * | |
| 697 | + * @since 14.9 | |
| 698 | + * | |
| 699 | + * @param string $site_title The site title. | |
| 700 | + * @param string $image_url The image URL. | |
| 701 | + * @param string $template The template to use. | |
| 702 | + * | |
| 703 | + * @return string|WP_Error The social image token, or a WP_Error if the token could not be generated. | |
| 704 | + */ | |
| 705 | +function jetpack_og_get_social_image_token( $site_title, $image_url, $template ) { | |
| 706 | + // Let's check if we have a cached token. | |
| 707 | + $cache_key = wp_hash( $site_title . $image_url . $template ); | |
| 708 | + $transient_name = 'jetpack_og_social_image_token_' . $cache_key; | |
| 709 | + $cached_token = get_transient( $transient_name ); | |
| 710 | + | |
| 711 | + if ( ! empty( $cached_token ) ) { | |
| 712 | + return $cached_token; | |
| 428 | 713 | } |
| 429 | 714 | |
| 430 | - return $image; | |
| 715 | + /** | |
| 716 | + * Filter the social image token for testing purposes. | |
| 717 | + * | |
| 718 | + * @since 14.9 | |
| 719 | + * | |
| 720 | + * @param string|WP_Error|null $token The token to return, or null to use default behavior. | |
| 721 | + */ | |
| 722 | + $token = apply_filters( 'jetpack_og_get_social_image_token', null ); | |
| 723 | + if ( null !== $token ) { | |
| 724 | + return $token; | |
| 725 | + } | |
| 726 | + | |
| 727 | + if ( ! function_exists( '\Automattic\Jetpack\Publicize\Social_Image_Generator\fetch_token' ) ) { | |
| 728 | + return new WP_Error( 'jetpack_og_get_social_image_token_error', __( 'Social Image Generator is not available.', 'jetpack' ) ); | |
| 729 | + } | |
| 730 | + | |
| 731 | + $token = \Automattic\Jetpack\Publicize\Social_Image_Generator\fetch_token( $site_title, $image_url, $template ); | |
| 732 | + | |
| 733 | + /* | |
| 734 | + * We want to cache 2 types of responses: | |
| 735 | + * - Successful responses with a token. | |
| 736 | + * - WP_Error responses that denote a WordPress.com connection issue. | |
| 737 | + */ | |
| 738 | + if ( | |
| 739 | + ! is_wp_error( $token ) | |
| 740 | + || ( | |
| 741 | + is_wp_error( $token ) | |
| 742 | + && 'invalid_user_permission_publicize' === $token->get_error_code() | |
| 743 | + ) | |
| 744 | + ) { | |
| 745 | + set_transient( $transient_name, $token, DAY_IN_SECONDS ); | |
| 746 | + } | |
| 747 | + | |
| 748 | + return $token; | |
| 431 | 749 | } |
| 432 | 750 | |
| 433 | 751 | /** |
| 752 | + * Generate and create a fallback social image. | |
| 753 | + * | |
| 754 | + * @since 14.9 | |
| 755 | + * | |
| 756 | + * @param array $representative_image The representative image of the site. | |
| 757 | + * @param string $template The template to use. | |
| 758 | + * | |
| 759 | + * @return array The source ('src'), 'width', and 'height' of the image. | |
| 760 | + */ | |
| 761 | +function jetpack_og_generate_fallback_social_image( $representative_image, $template ) { | |
| 762 | + $site_title = get_bloginfo( 'name' ); | |
| 763 | + $fallback_image = array( | |
| 764 | + 'src' => $representative_image['src'], | |
| 765 | + 'width' => $representative_image['width'], | |
| 766 | + 'height' => $representative_image['height'], | |
| 767 | + ); | |
| 768 | + | |
| 769 | + // Ensure that we use a valid template. | |
| 770 | + if ( | |
| 771 | + ! in_array( | |
| 772 | + $template, | |
| 773 | + jetpack_og_get_available_templates(), | |
| 774 | + true | |
| 775 | + ) | |
| 776 | + ) { | |
| 777 | + $template = 'edge'; | |
| 778 | + } | |
| 779 | + | |
| 780 | + // Let's generate the token matching the image.. | |
| 781 | + $token = jetpack_og_get_social_image_token( $site_title, $representative_image['src'], $template ); | |
| 782 | + | |
| 783 | + if ( is_wp_error( $token ) ) { | |
| 784 | + return $fallback_image; | |
| 785 | + } | |
| 786 | + | |
| 787 | + // Build the image URL and return it. | |
| 788 | + return array( | |
| 789 | + 'src' => sprintf( | |
| 790 | + 'https://s0.wp.com/_si/?t=%s', | |
| 791 | + $token | |
| 792 | + ), | |
| 793 | + 'width' => 1200, | |
| 794 | + 'height' => 630, | |
| 795 | + ); | |
| 796 | +} | |
| 797 | + | |
| 798 | +/** | |
| 434 | 799 | * Validate the width and height against required width and height |
| 435 | 800 | * |
| 436 | 801 | * @param int $width Width of the image. |
| 437 | 802 | * @param int $height Height of the image. |
| @@ -474,8 +839,9 @@ | ||
| 474 | 839 | * There should be: |
| 475 | 840 | * - no links |
| 476 | 841 | * - no shortcodes |
| 477 | 842 | * - no html tags or their contents |
| 843 | + * - no content within wp:query blocks | |
| 478 | 844 | * - not too many words. |
| 479 | 845 | * |
| 480 | 846 | * @param string $description Text coming from WordPress (autogenerated or manually generated by author). |
| 481 | 847 | * @param WP_Post|null $data Information about our post. |
| @@ -482,8 +848,11 @@ | ||
| 482 | 848 | * |
| 483 | 849 | * @return string $description Cleaned up description string. |
| 484 | 850 | */ |
| 485 | 851 | function jetpack_og_get_description( $description = '', $data = null ) { |
| 852 | + // Remove content within wp:query blocks. | |
| 853 | + $description = jetpack_og_remove_query_blocks( $description ); | |
| 854 | + | |
| 486 | 855 | // Remove tags such as <style or <script. |
| 487 | 856 | $description = wp_strip_all_tags( $description ); |
| 488 | 857 | |
| 489 | 858 | /* |
| @@ -537,8 +906,96 @@ | ||
| 537 | 906 | ); |
| 538 | 907 | } |
| 539 | 908 | |
| 540 | 909 | return $description; |
| 910 | +} | |
| 911 | + | |
| 912 | +/** | |
| 913 | + * Remove content within wp:query blocks from the description. | |
| 914 | + * | |
| 915 | + * @since 14.9 | |
| 916 | + * | |
| 917 | + * @param string $description The description text that may contain block markup. | |
| 918 | + * @return string The description with wp:query blocks removed. | |
| 919 | + */ | |
| 920 | +function jetpack_og_remove_query_blocks( $description ) { | |
| 921 | + // Handle non-string input | |
| 922 | + if ( ! is_string( $description ) ) { | |
| 923 | + return ''; | |
| 924 | + } | |
| 925 | + | |
| 926 | + $output = ''; | |
| 927 | + $offset = 0; | |
| 928 | + $depth = 0; | |
| 929 | + $in_query_block = false; | |
| 930 | + | |
| 931 | + $scanner = Block_Scanner::create( $description ); | |
| 932 | + if ( ! $scanner ) { | |
| 933 | + return $description; | |
| 934 | + } | |
| 935 | + | |
| 936 | + while ( $scanner->next_delimiter() ) { | |
| 937 | + $span = $scanner->get_span(); | |
| 938 | + $match_at = $span->start; | |
| 939 | + $length = $span->length; | |
| 940 | + | |
| 941 | + // Check if this is a query block. | |
| 942 | + if ( $scanner->is_block_type( 'query' ) ) { | |
| 943 | + switch ( $scanner->get_delimiter_type() ) { | |
| 944 | + case Block_Scanner::OPENER: | |
| 945 | + if ( ! $in_query_block ) { | |
| 946 | + // Copy content before the query block. | |
| 947 | + $output .= substr( $description, $offset, $match_at - $offset ); | |
| 948 | + $in_query_block = true; | |
| 949 | + } | |
| 950 | + ++$depth; | |
| 951 | + break; | |
| 952 | + | |
| 953 | + case Block_Scanner::CLOSER: | |
| 954 | + --$depth; | |
| 955 | + if ( $in_query_block && $depth === 0 ) { | |
| 956 | + // We've exited the query block, continue from after it. | |
| 957 | + $in_query_block = false; | |
| 958 | + $offset = $match_at + $length; | |
| 959 | + | |
| 960 | + // Remove extra newline if present | |
| 961 | + if ( | |
| 962 | + str_starts_with( substr( $description, $offset ), "\n" ) | |
| 963 | + && str_ends_with( $output, "\n" ) | |
| 964 | + ) { | |
| 965 | + ++$offset; | |
| 966 | + } | |
| 967 | + } | |
| 968 | + break; | |
| 969 | + | |
| 970 | + case Block_Scanner::VOID: | |
| 971 | + // Void query blocks should be removed entirely. | |
| 972 | + if ( ! $in_query_block ) { | |
| 973 | + $output .= substr( $description, $offset, $match_at - $offset ); | |
| 974 | + $offset = $match_at + $length; | |
| 975 | + // Remove extra newline if present | |
| 976 | + if ( | |
| 977 | + str_starts_with( substr( $description, $offset ), "\n" ) | |
| 978 | + && str_ends_with( $output, "\n" ) | |
| 979 | + ) { | |
| 980 | + ++$offset; | |
| 981 | + } | |
| 982 | + } | |
| 983 | + break; | |
| 984 | + } | |
| 985 | + } elseif ( ! $in_query_block ) { | |
| 986 | + // Not a query block, copy content including the delimiter if we're not inside a query block. | |
| 987 | + $output .= substr( $description, $offset, $match_at - $offset + $length ); | |
| 988 | + $offset = $match_at + $length; | |
| 989 | + } | |
| 990 | + } | |
| 991 | + | |
| 992 | + // Add any remaining content after the last delimiter. | |
| 993 | + if ( ! $in_query_block ) { | |
| 994 | + $output .= substr( $description, $offset ); | |
| 995 | + } | |
| 996 | + | |
| 997 | + return $output; | |
| 541 | 998 | } |
| 542 | 999 | |
| 543 | 1000 | /** |
| 544 | 1001 | * Display a Fediverse actor Open Graph tag when the post author has a Mastodon connection. |
