| 1 |
<?php namespace TierPricingTable\Addons\NonLoggedInUsers\Visibility; |
| 2 |
|
| 3 |
use TierPricingTable\TierPricingTablePlugin; |
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use WC_Product; |
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use WP_Query; |
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|
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/** |
| 8 |
* Applies the visibility rules on the storefront: hidden products leave every product list, related |
| 9 |
* and upsell lists, menus and the sitemap, cannot be bought, and their pages redirect or 404; hidden |
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* categories leave category lists, menus and their archives. Shop managers always see everything. |
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*/ |
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class ProductVisibilityService { |
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|
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/** @var int[]|null */ |
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protected $hiddenProducts = null; |
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|
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/** @var int[]|null */ |
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protected $hiddenCategories = null; |
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|
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protected bool $collecting = false; |
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|
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public function __construct() { |
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add_action( 'save_post_product', array( VisibilityMeta::class, 'bumpVersion' ) ); |
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add_action( 'woocommerce_update_product', array( VisibilityMeta::class, 'bumpVersion' ) ); |
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add_action( 'set_object_terms', array( $this, 'onTermsSet' ), 10, 4 ); |
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add_action( 'delete_product_cat', array( VisibilityMeta::class, 'bumpVersion' ) ); |
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|
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if ( is_admin() && ! wp_doing_ajax() ) { |
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return; |
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} |
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|
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add_action( 'pre_get_posts', array( $this, 'filterQuery' ) ); |
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add_filter( 'woocommerce_rest_product_object_query', array( $this, 'filterRestQuery' ), 10, 2 ); |
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add_filter( 'woocommerce_related_products', array( $this, 'filterIds' ) ); |
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add_filter( 'woocommerce_product_get_upsell_ids', array( $this, 'filterIds' ) ); |
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add_filter( 'woocommerce_product_get_cross_sell_ids', array( $this, 'filterIds' ) ); |
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add_filter( 'woocommerce_product_is_visible', array( $this, 'filterIsVisible' ), 10, 2 ); |
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add_filter( 'woocommerce_is_purchasable', array( $this, 'filterIsPurchasable' ), 10, 2 ); |
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add_filter( 'woocommerce_add_to_cart_validation', array( $this, 'validateAddToCart' ), 10, 2 ); |
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add_action( 'woocommerce_check_cart_items', array( $this, 'checkCartItems' ) ); |
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add_filter( 'terms_clauses', array( $this, 'filterTermsClauses' ), 10, 3 ); |
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add_filter( 'rest_pre_dispatch', array( $this, 'guardStoreApi' ), 10, 3 ); |
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add_filter( 'woocommerce_get_breadcrumb', array( $this, 'filterBreadcrumb' ) ); |
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add_filter( 'term_links-product_cat', array( $this, 'filterTermLinks' ) ); |
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add_action( 'woocommerce_product_meta_start', array( $this, 'bufferProductMeta' ) ); |
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add_action( 'woocommerce_product_meta_end', array( $this, 'flushProductMeta' ) ); |
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add_filter( 'wp_get_nav_menu_items', array( $this, 'filterMenuItems' ) ); |
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add_filter( 'wp_sitemaps_posts_query_args', array( $this, 'filterSitemapQuery' ), 10, 2 ); |
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add_action( 'template_redirect', array( $this, 'guardSingleViews' ), 5 ); |
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} |
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|
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/* --- who is looking ------------------------------------------------------------------------ */ |
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|
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public static function isExempt(): bool { |
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return current_user_can( 'manage_woocommerce' ); |
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} |
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|
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public static function isGuest(): bool { |
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return ! is_user_logged_in(); |
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} |
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|
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/** |
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* @return string[] |
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*/ |
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public static function getRoles(): array { |
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return self::isGuest() ? array() : array_values( array_map( 'strval', TierPricingTablePlugin::getCurrentUserRoles() ) ); |
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} |
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|
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public static function isProductVisibleFor( int $productId, array $roles, bool $isGuest ): bool { |
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return VisibilityRule::isProductVisible( |
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VisibilityMeta::getProductRule( $productId ), |
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VisibilityMeta::getProductCategoryRules( $productId ), |
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$roles, |
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$isGuest |
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); |
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} |
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|
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public function isProductHidden( int $productId ): bool { |
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return in_array( $productId, $this->getHiddenProducts(), true ); |
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} |
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|
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public function isCategoryHidden( int $termId ): bool { |
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return in_array( $termId, $this->getHiddenCategories(), true ); |
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} |
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|
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/* --- the hidden sets (cached per visitor kind) --------------------------------------------- */ |
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|
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/** |
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* @return int[] |
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*/ |
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public function getHiddenProducts(): array { |
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if ( null !== $this->hiddenProducts ) { |
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return $this->hiddenProducts; |
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} |
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|
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if ( self::isExempt() ) { |
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return $this->hiddenProducts = array(); |
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} |
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|
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$this->hiddenProducts = $this->remember( 'products', function () { |
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return self::collectHiddenProducts( self::getRoles(), self::isGuest() ); |
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} ); |
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|
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return $this->hiddenProducts; |
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} |
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|
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/** |
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* @return int[] |
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*/ |
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public function getHiddenCategories(): array { |
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if ( null !== $this->hiddenCategories ) { |
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return $this->hiddenCategories; |
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} |
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|
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if ( self::isExempt() ) { |
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return $this->hiddenCategories = array(); |
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} |
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|
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$this->hiddenCategories = $this->remember( 'categories', function () { |
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return self::collectHiddenCategories( self::getRoles(), self::isGuest() ); |
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} ); |
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|
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return $this->hiddenCategories; |
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} |
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|
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protected function remember( string $what, callable $compute ): array { |
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$key = 'tpt_visibility_' . $what . '_' . md5( VisibilityMeta::getVersion() . '|' . implode( ',', self::getRoles() ) . '|' . ( self::isGuest() ? 'guest' : 'user' ) ); |
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$ids = get_transient( $key ); |
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|
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if ( ! is_array( $ids ) ) { |
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$this->collecting = true; |
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$ids = array_values( array_unique( array_map( 'intval', (array) $compute() ) ) ); |
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$this->collecting = false; |
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|
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set_transient( $key, $ids, 12 * HOUR_IN_SECONDS ); |
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} |
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|
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return $ids; |
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} |
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|
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/** |
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* @return int[] restricted categories a visitor with these roles may not see, with their child categories |
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*/ |
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public static function collectHiddenCategories( array $roles, bool $isGuest ): array { |
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$hidden = array(); |
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|
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foreach ( VisibilityMeta::getRestrictedCategoryIds() as $termId ) { |
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if ( ! VisibilityRule::canSee( VisibilityMeta::getCategoryRule( $termId ), $roles, $isGuest ) ) { |
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$hidden[] = $termId; |
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|
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foreach ( get_term_children( $termId, 'product_cat' ) as $child ) { |
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$hidden[] = (int) $child; |
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} |
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} |
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} |
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|
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return $hidden; |
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} |
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|
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/** |
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* @return int[] products a visitor with these roles may not see (not cached; the storefront uses getHiddenProducts()) |
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*/ |
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public static function collectHiddenProducts( array $roles, bool $isGuest ): array { |
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$hidden = array(); |
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|
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foreach ( self::findProductsWithOwnRule() as $productId ) { |
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if ( ! VisibilityRule::canSee( VisibilityMeta::getProductRule( $productId ), $roles, $isGuest ) ) { |
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$hidden[] = $productId; |
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} |
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} |
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|
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// products in a hidden category that follow the category rules |
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foreach ( self::findProductsFollowingCategories( self::collectHiddenCategories( $roles, $isGuest ) ) as $productId ) { |
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$hidden[] = $productId; |
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} |
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|
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return $hidden; |
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} |
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|
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/** |
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* @return int[] every product that is hidden from somebody: an own rule, or a restricting category it follows |
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*/ |
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public static function collectRestrictedProducts(): array { |
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return array_values( array_unique( array_merge( |
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self::findProductsWithOwnRule(), |
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self::findProductsFollowingCategories( VisibilityMeta::getRestrictedCategoryIds() ) |
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) ) ); |
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} |
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|
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/** |
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* @return int[] products with a restricting rule of their own |
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*/ |
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protected static function findProductsWithOwnRule(): array { |
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$ids = get_posts( array( |
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'post_type' => 'product', |
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'post_status' => 'any', |
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'posts_per_page' => -1, |
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'fields' => 'ids', |
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'no_found_rows' => true, |
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'tpt_visibility' => true, |
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'meta_query' => array( // phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_query |
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array( |
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'key' => VisibilityMeta::PRODUCT_MODE, |
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'value' => array( VisibilityRule::MODE_INCLUDE, VisibilityRule::MODE_EXCLUDE ), |
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'compare' => 'IN', |
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), |
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), |
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) ); |
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|
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return array_map( 'intval', $ids ); |
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} |
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|
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/** |
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* @param int[] $categoryIds |
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* |
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* @return int[] products in these categories (or their children) that have no rule of their own |
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*/ |
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protected static function findProductsFollowingCategories( array $categoryIds ): array { |
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if ( ! $categoryIds ) { |
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return array(); |
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} |
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|
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$ids = get_posts( array( |
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'post_type' => 'product', |
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'post_status' => 'any', |
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'posts_per_page' => -1, |
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'fields' => 'ids', |
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'no_found_rows' => true, |
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'tpt_visibility' => true, |
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'tax_query' => array( // phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_tax_query |
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array( |
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'taxonomy' => 'product_cat', |
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'field' => 'term_id', |
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'terms' => array_map( 'intval', $categoryIds ), |
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'include_children' => true, |
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), |
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), |
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) ); |
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|
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$following = array(); |
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|
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foreach ( $ids as $productId ) { |
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if ( VisibilityRule::MODE_INHERIT === VisibilityMeta::getProductRule( (int) $productId )['mode'] ) { |
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$following[] = (int) $productId; |
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} |
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} |
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|
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return $following; |
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} |
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|
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/* --- lists ------------------------------------------------------------------------------- */ |
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|
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public function filterQuery( WP_Query $query ) { |
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if ( $this->collecting || $query->get( 'tpt_visibility' ) || is_admin() ) { |
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return; |
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} |
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|
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$postType = $query->get( 'post_type' ); |
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$types = array_filter( (array) $postType ); |
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$isProduct = in_array( 'product', $types, true ); |
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$isBroad = $query->is_main_query() && ( $query->is_search() || $query->is_post_type_archive( 'product' ) || $query->is_tax( get_object_taxonomies( 'product' ) ) ); |
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|
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if ( ! $isProduct && ! $isBroad ) { |
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return; |
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} |
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|
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// a hidden product's own page is handled on template_redirect (login page or not-found page) |
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if ( $query->is_main_query() && $query->is_singular() ) { |
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return; |
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} |
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|
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$hidden = $this->getHiddenProducts(); |
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|
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if ( ! $hidden ) { |
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return; |
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} |
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|
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$query->set( 'post__not_in', array_values( array_unique( array_merge( (array) $query->get( 'post__not_in' ), $hidden ) ) ) ); |
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} |
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|
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public function filterRestQuery( array $args, $request ): array { |
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$hidden = $this->getHiddenProducts(); |
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|
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if ( $hidden ) { |
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$args['post__not_in'] = array_values( array_unique( array_merge( (array) ( $args['post__not_in'] ?? array() ), $hidden ) ) ); |
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} |
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|
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return $args; |
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} |
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|
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public function filterIds( $ids ) { |
| 292 |
if ( ! is_array( $ids ) ) { |
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return $ids; |
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} |
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|
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$hidden = $this->getHiddenProducts(); |
| 297 |
|
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return $hidden ? array_values( array_diff( array_map( 'intval', $ids ), $hidden ) ) : $ids; |
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} |
| 300 |
|
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public function filterIsVisible( $visible, $productId ) { |
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return $visible && ! $this->isProductHidden( (int) $productId ); |
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} |
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|
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public function filterIsPurchasable( $purchasable, $product ) { |
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if ( $product instanceof WC_Product && $this->isProductHidden( $this->rootId( $product ) ) ) { |
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return false; |
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} |
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|
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return $purchasable; |
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} |
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|
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public function validateAddToCart( $passed, $productId ) { |
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if ( $passed && $this->isProductHidden( $this->rootId( (int) $productId ) ) ) { |
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wc_add_notice( __( 'This product is not available to you.', 'tier-pricing-table' ), 'error' ); |
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|
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return false; |
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} |
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|
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return $passed; |
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} |
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|
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public function checkCartItems() { |
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if ( ! WC()->cart ) { |
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return; |
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} |
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|
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foreach ( WC()->cart->get_cart() as $key => $item ) { |
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$productId = (int) ( $item['product_id'] ?? 0 ); |
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|
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if ( $productId && $this->isProductHidden( $productId ) ) { |
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WC()->cart->remove_cart_item( $key ); |
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wc_add_notice( __( 'An item that is no longer available to you was removed from your cart.', 'tier-pricing-table' ), 'notice' ); |
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} |
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} |
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} |
| 337 |
|
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/** |
| 339 |
* Hidden categories leave category lists: widgets, blocks, dropdowns, menus and the Store API, |
| 340 |
* whether they go through get_terms() or straight through WP_Term_Query. |
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* |
| 342 |
* Only listing queries are touched: the per-object queries behind get_the_terms() and the |
| 343 |
* "get everything" queries that build WordPress' own term caches stay complete, so no cache |
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* ever stores a visitor's view. The clause is part of the SQL, so the term query cache keeps |
| 345 |
* a visitor's list apart from a customer's. |
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*/ |
| 347 |
public function filterTermsClauses( $clauses, $taxonomies, $args ) { |
| 348 |
if ( $this->collecting || ! did_action( 'init' ) || ! in_array( 'product_cat', (array) $taxonomies, true ) ) { |
| 349 |
return $clauses; |
| 350 |
} |
| 351 |
|
| 352 |
if ( ! empty( $args['tpt_visibility'] ) || ! empty( $args['object_ids'] ) || 'all' === ( $args['get'] ?? '' ) ) { |
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return $clauses; |
| 354 |
} |
| 355 |
|
| 356 |
if ( ! in_array( (string) ( $args['fields'] ?? 'all' ), array( 'all', 'all_with_object_id', 'ids', 'names', 'slugs', 'id=>name', 'id=>slug' ), true ) ) { |
| 357 |
return $clauses; |
| 358 |
} |
| 359 |
|
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$hidden = $this->getHiddenCategories(); |
| 361 |
|
| 362 |
if ( $hidden ) { |
| 363 |
$clauses['where'] .= ' AND t.term_id NOT IN (' . implode( ',', array_map( 'intval', $hidden ) ) . ')'; |
| 364 |
} |
| 365 |
|
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return $clauses; |
| 367 |
} |
| 368 |
|
| 369 |
/** |
| 370 |
* The Store API's single product and single category routes return nothing hidden. |
| 371 |
* |
| 372 |
* @param mixed $result |
| 373 |
* @param \WP_REST_Server $server |
| 374 |
* @param \WP_REST_Request $request |
| 375 |
*/ |
| 376 |
public function guardStoreApi( $result, $server, $request ) { |
| 377 |
if ( null !== $result ) { |
| 378 |
return $result; |
| 379 |
} |
| 380 |
|
| 381 |
$route = (string) $request->get_route(); |
| 382 |
|
| 383 |
if ( preg_match( '#^/wc/store/v\d+/products/categories/(\d+)$#', $route, $m ) ) { |
| 384 |
return $this->isCategoryHidden( (int) $m[1] ) ? $this->notFound() : $result; |
| 385 |
} |
| 386 |
|
| 387 |
if ( preg_match( '#^/wc/store/v\d+/products/([^/]+)$#', $route, $m ) ) { |
| 388 |
$productId = is_numeric( $m[1] ) ? (int) $m[1] : 0; |
| 389 |
|
| 390 |
if ( ! $productId ) { |
| 391 |
$post = get_page_by_path( sanitize_title( urldecode( $m[1] ) ), OBJECT, 'product' ); |
| 392 |
$productId = $post ? (int) $post->ID : 0; |
| 393 |
} |
| 394 |
|
| 395 |
return $productId && $this->isProductHidden( $this->rootId( $productId ) ) ? $this->notFound() : $result; |
| 396 |
} |
| 397 |
|
| 398 |
return $result; |
| 399 |
} |
| 400 |
|
| 401 |
protected function notFound(): \WP_Error { |
| 402 |
return new \WP_Error( 'woocommerce_rest_product_invalid_id', __( 'Invalid product ID.', 'tier-pricing-table' ), array( 'status' => 404 ) ); |
| 403 |
} |
| 404 |
|
| 405 |
/** |
| 406 |
* A visible product inside a hidden category does not name that category in its breadcrumb. |
| 407 |
*/ |
| 408 |
public function filterBreadcrumb( $crumbs ) { |
| 409 |
$links = $this->getHiddenCategoryLinks(); |
| 410 |
|
| 411 |
if ( ! $links || ! is_array( $crumbs ) ) { |
| 412 |
return $crumbs; |
| 413 |
} |
| 414 |
|
| 415 |
return array_values( array_filter( $crumbs, function ( $crumb ) use ( $links ) { |
| 416 |
return ! in_array( untrailingslashit( (string) ( $crumb[1] ?? '' ) ), $links, true ); |
| 417 |
} ) ); |
| 418 |
} |
| 419 |
|
| 420 |
/** |
| 421 |
* ... nor in its "Category:" line. |
| 422 |
*/ |
| 423 |
public function filterTermLinks( $termLinks ) { |
| 424 |
$links = $this->getHiddenCategoryLinks(); |
| 425 |
|
| 426 |
if ( ! $links || ! is_array( $termLinks ) ) { |
| 427 |
return $termLinks; |
| 428 |
} |
| 429 |
|
| 430 |
return array_values( array_filter( $termLinks, function ( $html ) use ( $links ) { |
| 431 |
foreach ( $links as $link ) { |
| 432 |
if ( false !== strpos( (string) $html, 'href="' . esc_url( $link ) ) ) { |
| 433 |
return false; |
| 434 |
} |
| 435 |
} |
| 436 |
|
| 437 |
return true; |
| 438 |
} ) ); |
| 439 |
} |
| 440 |
|
| 441 |
/** |
| 442 |
* When every category of the product is hidden, the empty "Category:" line goes too. |
| 443 |
*/ |
| 444 |
public function bufferProductMeta() { |
| 445 |
if ( $this->getHiddenCategories() ) { |
| 446 |
ob_start(); |
| 447 |
} |
| 448 |
} |
| 449 |
|
| 450 |
public function flushProductMeta() { |
| 451 |
if ( ! $this->getHiddenCategories() ) { |
| 452 |
return; |
| 453 |
} |
| 454 |
|
| 455 |
$html = (string) ob_get_clean(); |
| 456 |
|
| 457 |
echo preg_replace( '#<span class="posted_in">(?:(?!</span>)(?!<a ).)*</span>#s', '', $html ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped |
| 458 |
} |
| 459 |
|
| 460 |
/** |
| 461 |
* @return string[] permalinks (without the trailing slash) of the hidden categories |
| 462 |
*/ |
| 463 |
protected function getHiddenCategoryLinks(): array { |
| 464 |
$links = array(); |
| 465 |
|
| 466 |
foreach ( $this->getHiddenCategories() as $termId ) { |
| 467 |
$link = get_term_link( $termId, 'product_cat' ); |
| 468 |
|
| 469 |
if ( ! is_wp_error( $link ) ) { |
| 470 |
$links[] = untrailingslashit( $link ); |
| 471 |
} |
| 472 |
} |
| 473 |
|
| 474 |
return $links; |
| 475 |
} |
| 476 |
|
| 477 |
public function filterMenuItems( $items ) { |
| 478 |
if ( ! is_array( $items ) || is_admin() || ! did_action( 'init' ) ) { |
| 479 |
return $items; |
| 480 |
} |
| 481 |
|
| 482 |
return array_values( array_filter( $items, function ( $item ) { |
| 483 |
if ( 'taxonomy' === $item->type && 'product_cat' === $item->object ) { |
| 484 |
return ! $this->isCategoryHidden( (int) $item->object_id ); |
| 485 |
} |
| 486 |
|
| 487 |
if ( 'post_type' === $item->type && 'product' === $item->object ) { |
| 488 |
return ! $this->isProductHidden( (int) $item->object_id ); |
| 489 |
} |
| 490 |
|
| 491 |
return true; |
| 492 |
} ) ); |
| 493 |
} |
| 494 |
|
| 495 |
public function filterSitemapQuery( array $args, string $postType ): array { |
| 496 |
if ( 'product' !== $postType ) { |
| 497 |
return $args; |
| 498 |
} |
| 499 |
|
| 500 |
// the sitemap is read by crawlers, that is, guests |
| 501 |
$this->hiddenProducts = null; |
| 502 |
$hidden = self::collectHiddenProducts( array(), true ); |
| 503 |
$this->hiddenProducts = null; |
| 504 |
|
| 505 |
if ( $hidden ) { |
| 506 |
$args['post__not_in'] = array_values( array_unique( array_merge( (array) ( $args['post__not_in'] ?? array() ), $hidden ) ) ); |
| 507 |
} |
| 508 |
|
| 509 |
return $args; |
| 510 |
} |
| 511 |
|
| 512 |
/* --- single views -------------------------------------------------------------------------- */ |
| 513 |
|
| 514 |
public function guardSingleViews() { |
| 515 |
if ( is_singular( 'product' ) && $this->isProductHidden( (int) get_queried_object_id() ) ) { |
| 516 |
$this->deny(); |
| 517 |
} |
| 518 |
|
| 519 |
if ( is_tax( 'product_cat' ) && $this->isCategoryHidden( (int) get_queried_object_id() ) ) { |
| 520 |
$this->deny(); |
| 521 |
} |
| 522 |
} |
| 523 |
|
| 524 |
/** |
| 525 |
* A guest is sent to the login page (with the way back), everybody else gets a not-found page. |
| 526 |
*/ |
| 527 |
protected function deny() { |
| 528 |
if ( self::isGuest() && VisibilitySettings::redirectGuestsFromHidden() ) { |
| 529 |
wp_safe_redirect( ClosedStoreService::getLoginUrl( $this->currentUrl() ) ); |
| 530 |
exit; |
| 531 |
} |
| 532 |
|
| 533 |
// the template loader, which runs right after this action, renders the not-found page |
| 534 |
global $wp_query; |
| 535 |
|
| 536 |
$wp_query->set_404(); |
| 537 |
status_header( 404 ); |
| 538 |
nocache_headers(); |
| 539 |
} |
| 540 |
|
| 541 |
protected function currentUrl(): string { |
| 542 |
$host = isset( $_SERVER['HTTP_HOST'] ) ? sanitize_text_field( wp_unslash( $_SERVER['HTTP_HOST'] ) ) : (string) wp_parse_url( home_url(), PHP_URL_HOST ); |
| 543 |
$path = isset( $_SERVER['REQUEST_URI'] ) ? esc_url_raw( wp_unslash( $_SERVER['REQUEST_URI'] ) ) : '/'; |
| 544 |
|
| 545 |
return esc_url_raw( ( is_ssl() ? 'https://' : 'http://' ) . $host . $path ); |
| 546 |
} |
| 547 |
|
| 548 |
protected function rootId( $product ): int { |
| 549 |
$product = $product instanceof WC_Product ? $product : wc_get_product( (int) $product ); |
| 550 |
|
| 551 |
if ( ! $product ) { |
| 552 |
return 0; |
| 553 |
} |
| 554 |
|
| 555 |
return (int) ( $product->get_parent_id() ?: $product->get_id() ); |
| 556 |
} |
| 557 |
|
| 558 |
public function onTermsSet( $objectId, $terms, $ttIds, $taxonomy ) { |
| 559 |
if ( 'product_cat' === $taxonomy ) { |
| 560 |
VisibilityMeta::bumpVersion(); |
| 561 |
} |
| 562 |
} |
| 563 |
} |
| 564 |
|
