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| 1 | <?php |
| 2 | /** |
| 3 | * Class containing utility static methods for managing SEO options for Posts and Pages. |
| 4 | * |
| 5 | * @package automattic/jetpack |
| 6 | */ |
| 7 | |
| 8 | /** |
| 9 | * Provides static utility methods for managing SEO options for Posts and Pages. |
| 10 | */ |
| 11 | class Jetpack_SEO_Posts { |
| 12 | /** |
| 13 | * Key of the post meta values that will be used to store post custom data. |
| 14 | */ |
| 15 | const DESCRIPTION_META_KEY = 'advanced_seo_description'; |
| 16 | const HTML_TITLE_META_KEY = 'jetpack_seo_html_title'; |
| 17 | const NOINDEX_META_KEY = 'jetpack_seo_noindex'; |
| 18 | const SCHEMA_TYPE_META_KEY = 'jetpack_seo_schema_type'; |
| 19 | const POST_META_KEYS_ARRAY = array( |
| 20 | self::DESCRIPTION_META_KEY, |
| 21 | self::HTML_TITLE_META_KEY, |
| 22 | self::NOINDEX_META_KEY, |
| 23 | self::SCHEMA_TYPE_META_KEY, |
| 24 | ); |
| 25 | |
| 26 | /** |
| 27 | * Allowed Schema.org types that can be stored in the per-post schema-type |
| 28 | * meta. Empty string means "no override" — Schema_Builder picks a sensible |
| 29 | * default for the post. Single source of truth for the meta enum, the |
| 30 | * block-editor panel options, and Schema_Builder. |
| 31 | */ |
| 32 | const ALLOWED_SCHEMA_TYPES = array( '', 'article', 'faq' ); |
| 33 | |
| 34 | /** |
| 35 | * Build meta description for post SEO. |
| 36 | * |
| 37 | * @param WP_Post|null $post Source of data for custom description. |
| 38 | * |
| 39 | * @return string Post description or empty string. |
| 40 | */ |
| 41 | public static function get_post_description( $post = null ) { |
| 42 | $post = get_post( $post ); |
| 43 | if ( ! ( $post instanceof WP_Post ) ) { |
| 44 | return ''; |
| 45 | } |
| 46 | |
| 47 | // Check the post being described, not the global one. |
| 48 | if ( post_password_required( $post ) || ! is_singular() ) { |
| 49 | return ''; |
| 50 | } |
| 51 | |
| 52 | // Business users can overwrite the description. |
| 53 | $custom_description = self::get_post_custom_description( $post ); |
| 54 | |
| 55 | if ( ! empty( $custom_description ) ) { |
| 56 | return $custom_description; |
| 57 | } |
| 58 | |
| 59 | if ( ! empty( $post->post_excerpt ) ) { |
| 60 | return $post->post_excerpt; |
| 61 | } |
| 62 | |
| 63 | // The fall-through reads raw post_content, which never passes the `the_content` paywall. |
| 64 | $content = $post->post_content; |
| 65 | if ( \Automattic\Jetpack\SEO\Content_Gate::is_gated( $post ) ) { |
| 66 | $content = \Automattic\Jetpack\SEO\Content_Gate::public_teaser( $post ); |
| 67 | if ( '' === $content ) { |
| 68 | return ''; |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | // Remove content within wp:query blocks and return. |
| 73 | return Jetpack_SEO_Utils::remove_query_blocks( $content ); |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * Returns post's custom meta description if it is set, and if |
| 78 | * SEO tools are enabled for current blog. |
| 79 | * |
| 80 | * @param WP_Post|null $post Source of data for custom description. |
| 81 | * |
| 82 | * @return string Custom description or empty string |
| 83 | */ |
| 84 | public static function get_post_custom_description( $post = null ) { |
| 85 | $post = get_post( $post ); |
| 86 | if ( ! ( $post instanceof WP_Post ) ) { |
| 87 | return ''; |
| 88 | } |
| 89 | |
| 90 | $custom_description = get_post_meta( $post->ID, self::DESCRIPTION_META_KEY, true ); |
| 91 | |
| 92 | if ( empty( $custom_description ) || ! Jetpack_SEO_Utils::is_enabled_jetpack_seo() ) { |
| 93 | return ''; |
| 94 | } |
| 95 | |
| 96 | return $custom_description; |
| 97 | } |
| 98 | |
| 99 | /** |
| 100 | * Gets a custom HTML title for a post if one is set, and if |
| 101 | * SEO tools are enabled for the current blog. |
| 102 | * |
| 103 | * @param WP_Post|null $post Source of data for the custom HTML title. |
| 104 | * |
| 105 | * @return string Custom HTML title or an empty string if not set. |
| 106 | */ |
| 107 | public static function get_post_custom_html_title( $post = null ) { |
| 108 | $post = get_post( $post ); |
| 109 | if ( ! ( $post instanceof WP_Post ) ) { |
| 110 | return ''; |
| 111 | } |
| 112 | |
| 113 | $custom_html_title = get_post_meta( $post->ID, self::HTML_TITLE_META_KEY, true ); |
| 114 | |
| 115 | if ( empty( $custom_html_title ) || ! Jetpack_SEO_Utils::is_enabled_jetpack_seo() ) { |
| 116 | return ''; |
| 117 | } |
| 118 | |
| 119 | return $custom_html_title; |
| 120 | } |
| 121 | |
| 122 | /** |
| 123 | * Gets the `jetpack_seo_noindex` setting for a post, if |
| 124 | * SEO tools are enabled for the current blog. |
| 125 | * |
| 126 | * @param WP_Post|null $post Provided post or defaults to the global post. |
| 127 | * |
| 128 | * @return bool True if post should be marked as noindex, false otherwise. |
| 129 | */ |
| 130 | public static function get_post_noindex_setting( $post = null ) { |
| 131 | $post = get_post( $post ); |
| 132 | if ( ! ( $post instanceof WP_Post ) ) { |
| 133 | return false; |
| 134 | } |
| 135 | |
| 136 | $mark_as_noindex = get_post_meta( $post->ID, self::NOINDEX_META_KEY, true ); |
| 137 | |
| 138 | if ( empty( $mark_as_noindex ) || ! Jetpack_SEO_Utils::is_enabled_jetpack_seo() ) { |
| 139 | return false; |
| 140 | } |
| 141 | |
| 142 | return (bool) $mark_as_noindex; |
| 143 | } |
| 144 | |
| 145 | /** |
| 146 | * Filter callback for `jetpack_sitemap_skip_post`; if a post has `jetpack_seo_noindex` set to true, |
| 147 | * then exclude that post from the Jetpack sitemap. |
| 148 | * |
| 149 | * @param bool $skip Whether to skip the post in the sitemap. |
| 150 | * @param WP_Post $post The post to check. |
| 151 | * |
| 152 | * @return bool |
| 153 | */ |
| 154 | public static function exclude_noindex_posts_from_jetpack_sitemap( $skip, $post ) { |
| 155 | $exclude = self::get_post_noindex_setting( $post ); |
| 156 | if ( $exclude ) { |
| 157 | $skip = true; |
| 158 | } |
| 159 | return $skip; |
| 160 | } |
| 161 | |
| 162 | /** |
| 163 | * Registers the SEO post meta keys for use in the REST API: |
| 164 | * - self::DESCRIPTION_META_KEY |
| 165 | * - self::HTML_TITLE_META_KEY |
| 166 | * - self::NOINDEX_META_KEY |
| 167 | * - self::SCHEMA_TYPE_META_KEY |
| 168 | */ |
| 169 | public static function register_post_meta() { |
| 170 | $description_args = array( |
| 171 | 'type' => 'string', |
| 172 | 'description' => __( 'Custom post description to be used in HTML <meta /> tag.', 'jetpack' ), |
| 173 | 'single' => true, |
| 174 | 'default' => '', |
| 175 | 'show_in_rest' => array( |
| 176 | 'name' => self::DESCRIPTION_META_KEY, |
| 177 | ), |
| 178 | ); |
| 179 | |
| 180 | $html_title_args = array( |
| 181 | 'type' => 'string', |
| 182 | 'description' => __( 'Custom title to be used in HTML <title /> tag.', 'jetpack' ), |
| 183 | 'single' => true, |
| 184 | 'default' => '', |
| 185 | 'show_in_rest' => array( |
| 186 | 'name' => self::HTML_TITLE_META_KEY, |
| 187 | ), |
| 188 | ); |
| 189 | |
| 190 | $noindex_args = array( |
| 191 | 'type' => 'boolean', |
| 192 | 'description' => __( 'Whether to hide the post from search engines and the Jetpack sitemap.', 'jetpack' ), |
| 193 | 'single' => true, |
| 194 | 'default' => false, |
| 195 | 'show_in_rest' => array( |
| 196 | 'name' => self::NOINDEX_META_KEY, |
| 197 | ), |
| 198 | ); |
| 199 | |
| 200 | $schema_type_args = array( |
| 201 | 'type' => 'string', |
| 202 | 'description' => __( 'Schema.org type to emit as JSON-LD for this post.', 'jetpack' ), |
| 203 | 'single' => true, |
| 204 | 'default' => '', |
| 205 | 'sanitize_callback' => array( __CLASS__, 'sanitize_schema_type' ), |
| 206 | 'show_in_rest' => array( |
| 207 | 'name' => self::SCHEMA_TYPE_META_KEY, |
| 208 | // Enum so core REST rejects an unknown schema type with a proper |
| 209 | // rest_invalid_param error; the sanitize_callback is the |
| 210 | // defense-in-depth fallback for non-REST writes. |
| 211 | 'schema' => array( |
| 212 | 'type' => 'string', |
| 213 | 'enum' => self::ALLOWED_SCHEMA_TYPES, |
| 214 | ), |
| 215 | ), |
| 216 | ); |
| 217 | |
| 218 | register_meta( 'post', self::DESCRIPTION_META_KEY, $description_args ); |
| 219 | register_meta( 'post', self::HTML_TITLE_META_KEY, $html_title_args ); |
| 220 | register_meta( 'post', self::NOINDEX_META_KEY, $noindex_args ); |
| 221 | register_meta( 'post', self::SCHEMA_TYPE_META_KEY, $schema_type_args ); |
| 222 | } |
| 223 | |
| 224 | /** |
| 225 | * Sanitize a schema type to the allowed list. Unknown values become '' |
| 226 | * (no override) rather than erroring, so a non-REST write can't store junk. |
| 227 | * |
| 228 | * @param string $value The submitted value. |
| 229 | * @return string A value from self::ALLOWED_SCHEMA_TYPES. |
| 230 | */ |
| 231 | public static function sanitize_schema_type( $value ) { |
| 232 | $value = is_string( $value ) ? sanitize_key( $value ) : ''; |
| 233 | return in_array( $value, self::ALLOWED_SCHEMA_TYPES, true ) ? $value : ''; |
| 234 | } |
| 235 | |
| 236 | /** |
| 237 | * Get the per-post schema-type override, if any. |
| 238 | * |
| 239 | * @param WP_Post|int|null $post Post or post ID. |
| 240 | * @return string A value from self::ALLOWED_SCHEMA_TYPES ('' = no override). |
| 241 | */ |
| 242 | public static function get_post_schema_type( $post = null ) { |
| 243 | $post = get_post( $post ); |
| 244 | if ( ! ( $post instanceof WP_Post ) ) { |
| 245 | return ''; |
| 246 | } |
| 247 | return self::sanitize_schema_type( (string) get_post_meta( $post->ID, self::SCHEMA_TYPE_META_KEY, true ) ); |
| 248 | } |
| 249 | |
| 250 | /** |
| 251 | * Factual per-post SEO field coverage — presence/state only, never a score. |
| 252 | * |
| 253 | * Single source of truth shared by the Content tab, the edit.php columns, |
| 254 | * and the Overview coverage card so the three never drift. Reports whether |
| 255 | * each field has been *set*, independent of whether SEO tools are currently |
| 256 | * active (this is an authoring/audit view, not front-end emission). |
| 257 | * |
| 258 | * @param WP_Post|int|null $post Post or post ID. |
| 259 | * @return array{has_custom_title:bool,has_description:bool,has_schema_type:bool,noindex:bool} |
| 260 | */ |
| 261 | public static function get_post_seo_coverage( $post = null ) { |
| 262 | $post = get_post( $post ); |
| 263 | if ( ! ( $post instanceof WP_Post ) ) { |
| 264 | return array( |
| 265 | 'has_custom_title' => false, |
| 266 | 'has_description' => false, |
| 267 | 'has_schema_type' => false, |
| 268 | 'noindex' => false, |
| 269 | ); |
| 270 | } |
| 271 | |
| 272 | return array( |
| 273 | 'has_custom_title' => '' !== (string) get_post_meta( $post->ID, self::HTML_TITLE_META_KEY, true ), |
| 274 | 'has_description' => '' !== (string) get_post_meta( $post->ID, self::DESCRIPTION_META_KEY, true ), |
| 275 | 'has_schema_type' => '' !== self::get_post_schema_type( $post ), |
| 276 | 'noindex' => (bool) get_post_meta( $post->ID, self::NOINDEX_META_KEY, true ), |
| 277 | ); |
| 278 | } |
| 279 | } |