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| 1 | <?php |
| 2 | /** |
| 3 | * Default image for social cards without a content-specific image. |
| 4 | * |
| 5 | * @package automattic/jetpack-seo |
| 6 | */ |
| 7 | |
| 8 | namespace Automattic\Jetpack\SEO; |
| 9 | |
| 10 | use WP_Error; |
| 11 | use WP_REST_Request; |
| 12 | |
| 13 | /** |
| 14 | * Supplies an owner-selected image through the existing social fallback. |
| 15 | * |
| 16 | * @since $$next-version$$ |
| 17 | */ |
| 18 | class Share_Image { |
| 19 | /** |
| 20 | * Option containing the attachment ID. |
| 21 | * |
| 22 | * @var string |
| 23 | */ |
| 24 | const OPTION = 'jetpack_seo_default_share_image'; |
| 25 | |
| 26 | /** Register the fallback without changing Social's content-specific images. */ |
| 27 | public static function init() { |
| 28 | add_filter( 'jetpack_og_default_site_image', array( __CLASS__, 'fallback_image' ), 20 ); |
| 29 | } |
| 30 | |
| 31 | /** |
| 32 | * Reject invalid media choices before core updates any settings. |
| 33 | * |
| 34 | * @param mixed $response Previous response. |
| 35 | * @param array $handler Route handler. |
| 36 | * @param WP_REST_Request $request Settings request. |
| 37 | * @return mixed |
| 38 | */ |
| 39 | public static function validate_request( $response, $handler, WP_REST_Request $request ) { |
| 40 | if ( null !== $response || ! current_user_can( 'manage_options' ) || ! preg_match( '#^/wp/v2/(?:sites/[^/]+/)?settings$#', $request->get_route() ) || ! in_array( $request->get_method(), array( 'POST', 'PUT', 'PATCH' ), true ) || ! $request->has_param( self::OPTION ) ) { |
| 41 | return $response; |
| 42 | } |
| 43 | $value = $request->get_param( self::OPTION ); |
| 44 | if ( 0 === $value ) { |
| 45 | return $response; |
| 46 | } |
| 47 | if ( ! current_user_can( 'upload_files' ) || ! current_user_can( 'edit_post', $value ) || ! self::image( $value ) ) { |
| 48 | return new WP_Error( 'jetpack_seo_invalid_share_image', __( 'Choose a JPEG, PNG, GIF or WebP image from the Media Library.', 'jetpack-seo' ), array( 'status' => 400 ) ); |
| 49 | } |
| 50 | return $response; |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * Resolve a supported attachment on the current site. |
| 55 | * |
| 56 | * @param int $id Attachment ID. |
| 57 | * @return array|null |
| 58 | */ |
| 59 | public static function image( $id ) { |
| 60 | if ( ! $id || 'attachment' !== get_post_type( $id ) || 'trash' === get_post_status( $id ) || ! in_array( get_post_mime_type( $id ), array( 'image/jpeg', 'image/png', 'image/gif', 'image/webp' ), true ) ) { |
| 61 | return null; |
| 62 | } |
| 63 | $image = wp_get_attachment_image_src( $id, 'full' ); |
| 64 | if ( ! $image || empty( $image[1] ) || empty( $image[2] ) ) { |
| 65 | return null; |
| 66 | } |
| 67 | return array( |
| 68 | 'type' => 'seo_default', |
| 69 | 'id' => (int) $id, |
| 70 | 'src' => $image[0], |
| 71 | 'width' => $image[1], |
| 72 | 'height' => $image[2], |
| 73 | 'alt_text' => (string) get_post_meta( $id, '_wp_attachment_image_alt', true ), |
| 74 | ); |
| 75 | } |
| 76 | |
| 77 | /** |
| 78 | * Preserve an existing custom fallback, otherwise use the configured image. |
| 79 | * |
| 80 | * @param array $image Existing custom fallback. |
| 81 | * @return array |
| 82 | */ |
| 83 | public static function fallback_image( $image ) { |
| 84 | if ( Seo_Tools::is_disabled() ) { |
| 85 | return $image; |
| 86 | } |
| 87 | return ! empty( $image['src'] ) ? $image : ( self::image( (int) get_option( self::OPTION, 0 ) ) ?? $image ); |
| 88 | } |
| 89 | } |