class-wc-cart-session.php — WooCommerce 11.1.0

woocommerce / includes / class-wc-cart-session.php

woocommerce / includes Last commit date

class-wc-cart-session.php

752 lines

1	<?php
2	/**
3	* Cart session handling class.
4	*
5	* @package WooCommerce\Classes
6	* @version 3.2.0
7	*/
8
9	use Automattic\WooCommerce\Enums\OrderStatus;
10	use Automattic\WooCommerce\Enums\ProductType;
11
12	if ( ! defined( 'ABSPATH' ) ) {
13	exit;
14	}
15
16	/**
17	* WC_Cart_Session class.
18	*
19	* @since 3.2.0
20	*/
21	final class WC_Cart_Session {
22
23	/**
24	* Reference to cart object.
25	*
26	* @since 3.2.0
27	* @var WC_Cart
28	*/
29	protected $cart;
30
31	/**
32	* Sets up the items provided, and calculate totals.
33	*
34	* @since 3.2.0
35	* @throws Exception If missing WC_Cart object.
36	*
37	* @param WC_Cart $cart Cart object to calculate totals for.
38	*/
39	public function __construct( $cart ) {
40	if ( ! is_a( $cart, 'WC_Cart' ) ) {
41	throw new Exception( 'A valid WC_Cart object is required' );
42	}
43
44	$this->set_cart( $cart );
45	}
46
47	/**
48	* Sets the cart instance.
49	*
50	* @param WC_Cart $cart Cart object.
51	*/
52	public function set_cart( WC_Cart $cart ) {
53	$this->cart = $cart;
54	}
55
56
57	/**
58	* Register methods for this object on the appropriate WordPress hooks.
59	*/
60	public function init() {
61	/**
62	* Filters whether hooks should be initialized for the current cart session.
63	*
64	* @param bool $must_initialize Will be passed as true, meaning that the cart hooks should be initialized.
65	* @param bool $session The WC_Cart_Session object that is being initialized.
66	* @returns bool True if the cart hooks should be actually initialized, false if not.
67	*
68	* @since 6.9.0
69	*/
70	if ( ! apply_filters( 'woocommerce_cart_session_initialize', true, $this ) ) {
71	return;
72	}
73
74	add_action( 'wp_loaded', array( $this, 'get_cart_from_session' ) );
75	add_action( 'woocommerce_cart_emptied', array( $this, 'destroy_cart_session' ) );
76	add_action( 'woocommerce_after_calculate_totals', array( $this, 'set_session' ), 1000 );
77	add_action( 'woocommerce_removed_coupon', array( $this, 'set_session' ) );
78
79	// Persistent cart stored to usermeta.
80	add_action( 'woocommerce_add_to_cart', array( $this, 'persistent_cart_update' ) );
81	add_action( 'woocommerce_cart_item_removed', array( $this, 'persistent_cart_update' ) );
82	add_action( 'woocommerce_cart_item_restored', array( $this, 'persistent_cart_update' ) );
83	add_action( 'woocommerce_cart_item_set_quantity', array( $this, 'persistent_cart_update' ) );
84
85	// Cookie events - cart cookies need to be set before headers are sent.
86	add_action( 'woocommerce_add_to_cart', array( $this, 'maybe_set_cart_cookies' ) );
87	add_action( 'wp', array( $this, 'maybe_set_cart_cookies' ), 99 );
88	add_action( 'shutdown', array( $this, 'maybe_set_cart_cookies' ), 0 );
89
90	add_action( 'template_redirect', array( $this, 'clean_up_removed_cart_contents' ) );
91	}
92
93	/**
94	* Get the cart data from the PHP session and store it in class variables.
95	*
96	* @since 3.2.0
97	*/
98	public function get_cart_from_session() {
99	/**
100	* Fires when cart is loaded from session.
101	*
102	* @since 3.2.0
103	*/
104	do_action( 'woocommerce_load_cart_from_session' );
105
106	$this->cart->set_totals( WC()->session->get( 'cart_totals', null ) );
107	$this->cart->set_applied_coupons( WC()->session->get( 'applied_coupons', array() ) );
108	$this->cart->set_coupon_discount_totals( WC()->session->get( 'coupon_discount_totals', array() ) );
109	$this->cart->set_coupon_discount_tax_totals( WC()->session->get( 'coupon_discount_tax_totals', array() ) );
110	$this->cart->set_removed_cart_contents( WC()->session->get( 'removed_cart_contents', array() ) );
111
112	$update_cart_session = false; // Flag to indicate the stored cart should be updated.
113	$order_again = false; // Flag to indicate whether this is a re-order.
114	$cart = WC()->session->get( 'cart', null );
115	$merge_saved_cart = (bool) get_user_meta( get_current_user_id(), '_woocommerce_load_saved_cart_after_login', true );
116
117	// Merge saved cart with current cart.
118	if ( is_null( $cart ) \|\| $merge_saved_cart ) {
119	$saved_cart = $this->get_saved_cart();
120	$cart = is_null( $cart ) ? array() : $cart;
121	$cart = array_merge( $saved_cart, $cart );
122	$update_cart_session = true;
123
124	delete_user_meta( get_current_user_id(), '_woocommerce_load_saved_cart_after_login' );
125	}
126
127	// Populate cart from order.
128	if ( isset( $_GET['order_again'], $_GET['_wpnonce'] ) && is_user_logged_in() && wp_verify_nonce( wp_unslash( $_GET['_wpnonce'] ), 'woocommerce-order_again' ) ) { // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
129	$cart = $this->populate_cart_from_order( absint( $_GET['order_again'] ), $cart );
130	$order_again = true;
131	$update_cart_session = true;
132	}
133
134	if ( ! empty( $cart ) ) {
135	// Prime caches to reduce future queries.
136	$product_ids = array_filter( array_column( $cart, 'product_id' ) );
137	$variations_ids = array_filter( array_column( $cart, 'variation_id' ) );
138	_prime_post_caches( array_merge( $product_ids, $variations_ids ) );
139	}
140
141	$cart_contents = array();
142
143	foreach ( $cart as $key => $values ) {
144	if ( ! is_customize_preview() && 'customize-preview' === $key ) {
145	continue;
146	}
147
148	$product = wc_get_product( $values['variation_id'] ? $values['variation_id'] : $values['product_id'] );
149
150	if ( empty( $product ) \|\| ! $product->exists() \|\| 0 >= $values['quantity'] ) {
151	continue;
152	}
153
154	/**
155	* Allow 3rd parties to validate this item before it's added to cart and add their own notices.
156	*
157	* @since 3.6.0
158	*
159	* @param bool $remove_cart_item_from_session If true, the item will not be added to the cart. Default: false.
160	* @param string $key Cart item key.
161	* @param array $values Cart item values e.g. quantity and product_id.
162	* @param WC_Product $product The product being added to the cart.
163	*/
164	if ( apply_filters( 'woocommerce_pre_remove_cart_item_from_session', false, $key, $values, $product ) ) {
165	$update_cart_session = true;
166	/**
167	* Fires when cart item is removed from the session.
168	*
169	* @since 3.6.0
170	*
171	* @param string $key Cart item key.
172	* @param array $values Cart item values e.g. quantity and product_id.
173	* @param WC_Product $product The product being added to the cart.
174	*/
175	do_action( 'woocommerce_remove_cart_item_from_session', $key, $values, $product );
176
177	/**
178	* Allow 3rd parties to override this item's is_purchasable() result with cart item data.
179	*
180	* @param bool $is_purchasable If false, the item will not be added to the cart. Default: product's is_purchasable() status.
181	* @param string $key Cart item key.
182	* @param array $values Cart item values e.g. quantity and product_id.
183	* @param WC_Product $product The product being added to the cart.
184	*
185	* @since 7.0.0
186	*/
187	} elseif ( ! apply_filters( 'woocommerce_cart_item_is_purchasable', $product->is_purchasable(), $key, $values, $product ) ) {
188	$update_cart_session = true;
189	/* translators: %s: product name */
190	$message = sprintf( __( '%s has been removed from your cart because it can no longer be purchased. Please contact us if you need assistance.', 'woocommerce' ), $product->get_name() );
191	/**
192	* Filter message about item removed from the cart.
193	*
194	* @since 3.8.0
195	* @param string $message Message.
196	* @param WC_Product $product Product data.
197	*/
198	$message = apply_filters( 'woocommerce_cart_item_removed_message', $message, $product );
199	wc_add_notice( $message, 'error' );
200	/**
201	* Fires when cart item is removed from the session.
202	*
203	* @since 3.6.0
204	*
205	* @param string $key Cart item key.
206	* @param array $values Cart item values e.g. quantity and product_id.
207	*/
208	do_action( 'woocommerce_remove_cart_item_from_session', $key, $values );
209	} elseif ( ! empty( $values['data_hash'] ) && ! hash_equals( $values['data_hash'], wc_get_cart_item_data_hash( $product ) ) ) { // phpcs:ignore PHPCompatibility.PHP.NewFunctions.hash_equalsFound
210	$update_cart_session = true;
211	/* translators: %1$s: product name. %2$s product permalink */
212	$message = sprintf( __( '%1$s has been removed from your cart because it has since been modified. You can add it back to your cart <a href="%2$s">here</a>.', 'woocommerce' ), $product->get_name(), $product->get_permalink() );
213
214	/**
215	* Filter message about item removed from the cart because it has since been modified.
216	*
217	* @since 3.8.0
218	* @param string $message Message.
219	* @param WC_Product $product Product data.
220	*/
221	$message = apply_filters( 'woocommerce_cart_item_removed_because_modified_message', $message, $product );
222	wc_add_notice( $message, 'notice' );
223
224	/**
225	* Fires when cart item is removed from the session.
226	*
227	* @since 3.6.0
228	*
229	* @param string $key Cart item key.
230	* @param array $values Cart item values e.g. quantity and product_id.
231	*/
232	do_action( 'woocommerce_remove_cart_item_from_session', $key, $values );
233
234	} else {
235	// Put session data into array. Run through filter so other plugins can load their own session data.
236	$session_data = array_merge(
237	$values,
238	array(
239	'data' => $product,
240	)
241	);
242
243	/**
244	* Filter to modify or add session data to the cart contents.
245	*
246	* @since 3.2.0
247	*
248	* @param array $session_data Data for an item in the cart.
249	* @param array $values Data for an item in the cart, without the product object.
250	* @param string $key The cart item hash.
251	*/
252	$cart_contents[ $key ] = apply_filters( 'woocommerce_get_cart_item_from_session', $session_data, $values, $key );
253	if ( ! isset( $cart_contents[ $key ]['data'] ) \|\| ! $cart_contents[ $key ]['data'] instanceof WC_Product ) {
254	// If the cart contents is missing the product object after filtering, something is wrong.
255	wc_doing_it_wrong(
256	__METHOD__,
257	'When filtering cart items with woocommerce_get_cart_item_from_session, each item must have a data key containing a product object.',
258	'9.8.0'
259	);
260
261	// Add the product back in.
262	$cart_contents[ $key ]['data'] = $product;
263	}
264
265	// Add to cart right away so the product is visible in woocommerce_get_cart_item_from_session hook.
266	$this->cart->set_cart_contents( $cart_contents );
267	}
268	}
269
270	// If it's not empty, it's been already populated by the loop above.
271	if ( ! empty( $cart_contents ) ) {
272	/**
273	* Filter the cart contents.
274	*
275	* @since 3.2.0
276	*
277	* @param array $cart_contents The cart contents.
278	*/
279	$this->cart->set_cart_contents( apply_filters( 'woocommerce_cart_contents_changed', $cart_contents ) );
280	}
281
282	/**
283	* Fires when cart is loaded from session.
284	*
285	* @since 3.2.0
286	*
287	* @param WC_Cart $cart The cart object.
288	*/
289	do_action( 'woocommerce_cart_loaded_from_session', $this->cart );
290
291	if ( $update_cart_session \|\| is_null( WC()->session->get( 'cart_totals', null ) ) ) {
292	$cart_for_session = $this->get_cart_for_session();
293	WC()->session->set( 'cart', empty( $cart_for_session ) ? null : $cart_for_session );
294	$this->cart->calculate_totals();
295
296	if ( $merge_saved_cart \|\| $update_cart_session ) {
297	$this->persistent_cart_update();
298	}
299	}
300
301	// If this is a re-order, redirect to the cart page to get rid of the `order_again` query string.
302	if ( $order_again ) {
303	wp_safe_redirect( wc_get_cart_url() );
304	exit;
305	}
306	}
307
308	/**
309	* Destroy cart session data.
310	*
311	* @since 3.2.0
312	*/
313	public function destroy_cart_session() {
314	$wc_session = WC()->session;
315
316	$wc_session->set( 'cart', null );
317	$wc_session->set( 'cart_totals', null );
318	$wc_session->set( 'applied_coupons', null );
319	$wc_session->set( 'coupon_discount_totals', null );
320	$wc_session->set( 'coupon_discount_tax_totals', null );
321	$wc_session->set( 'removed_cart_contents', null );
322	$wc_session->set( 'order_awaiting_payment', null );
323	$wc_session->set( 'store_api_draft_order', null );
324	$wc_session->set( 'shipping_method_counts', null );
325	$wc_session->set( 'previous_shipping_methods', null );
326	$wc_session->set( 'chosen_shipping_methods', null );
327	$this->remove_shipping_for_package_from_session();
328	}
329
330	/**
331	* Will set cart cookies if needed and when possible.
332	*
333	* Headers are only updated if headers have not yet been sent.
334	*
335	* @since 3.2.0
336	*/
337	public function maybe_set_cart_cookies() {
338	if ( headers_sent() \|\| ! did_action( 'wp_loaded' ) ) {
339	return;
340	}
341	if ( ! $this->cart->is_empty() ) {
342	$this->set_cart_cookies( true );
343	} elseif ( isset( $_COOKIE['woocommerce_items_in_cart'] ) ) { // WPCS: input var ok.
344	$this->set_cart_cookies( false );
345	}
346	$this->dedupe_cookies();
347	}
348
349	/**
350	* Remove duplicate cookies from the response.
351	*/
352	private function dedupe_cookies() {
353	$all_cookies = array_filter(
354	headers_list(),
355	function ( $header ) {
356	return stripos( $header, 'Set-Cookie:' ) !== false;
357	}
358	);
359	$final_cookies = array();
360	$update_cookies = false;
361	foreach ( $all_cookies as $cookie ) {
362
363	list(, $cookie_value) = explode( ':', $cookie, 2 );
364	list($cookie_name, $cookie_value) = explode( '=', trim( $cookie_value ), 2 );
365
366	if ( stripos( $cookie_name, 'woocommerce_' ) !== false ) {
367	$key = $this->find_cookie_by_name( $cookie_name, $final_cookies );
368	if ( false !== $key ) {
369	$update_cookies = true;
370	unset( $final_cookies[ $key ] );
371	}
372	}
373	$final_cookies[] = $cookie;
374	}
375
376	if ( $update_cookies ) {
377	header_remove( 'Set-Cookie' );
378	foreach ( $final_cookies as $cookie ) {
379	// Using header here preserves previous cookie args.
380	header( $cookie, false );
381	}
382	}
383	}
384
385	/**
386	* Find a cookie by name in an array of cookies.
387	*
388	* @param string $cookie_name Name of the cookie to find.
389	* @param array $cookies Array of cookies to search.
390	* @return mixed Key of the cookie if found, false if not.
391	*/
392	private function find_cookie_by_name( $cookie_name, $cookies ) {
393	foreach ( $cookies as $key => $cookie ) {
394	if ( strpos( $cookie, $cookie_name ) !== false ) {
395	return $key;
396	}
397	}
398	return false;
399	}
400
401	/**
402	* Sets the php session data for the cart and coupons.
403	*/
404	public function set_session() {
405	$wc_session = WC()->session;
406
407	$cart = $this->get_cart_for_session();
408	$applied_coupons = $this->cart->get_applied_coupons();
409	$coupon_discount_totals = $this->cart->get_coupon_discount_totals();
410	$coupon_discount_tax_totals = $this->cart->get_coupon_discount_tax_totals();
411	$removed_cart_contents = $this->cart->get_removed_cart_contents();
412
413	/*
414	* We want to clear out any empty/default data from the session that have no value in being stored so the session
415	* can be forgotten if empty.
416	*/
417	$wc_session->set( 'cart_totals', empty( $cart ) ? null : $this->cart->get_totals() );
418	$wc_session->set( 'cart', empty( $cart ) ? null : $cart );
419	$wc_session->set( 'applied_coupons', empty( $applied_coupons ) ? null : $applied_coupons );
420	$wc_session->set( 'coupon_discount_totals', empty( $coupon_discount_totals ) ? null : $coupon_discount_totals );
421	$wc_session->set( 'coupon_discount_tax_totals', empty( $coupon_discount_tax_totals ) ? null : $coupon_discount_tax_totals );
422	$wc_session->set( 'removed_cart_contents', empty( $removed_cart_contents ) ? null : $removed_cart_contents );
423	if ( ! $this->cart_has_shippable_products() ) {
424	$wc_session->set( 'shipping_method_counts', null );
425	$wc_session->set( 'previous_shipping_methods', null );
426	$wc_session->set( 'chosen_shipping_methods', null );
427	$this->remove_shipping_for_package_from_session();
428	}
429	if ( empty( $cart ) ) {
430	$wc_session->set( 'store_api_draft_order', null );
431	}
432
433	/**
434	* Fires when cart is updated.
435	*
436	* @since 3.2.0
437	*/
438	do_action( 'woocommerce_cart_updated' );
439	}
440
441	/**
442	* Returns the contents of the cart in an array without the 'data' element.
443	*
444	* @return array contents of the cart
445	*/
446	public function get_cart_for_session() {
447	$cart_session = array();
448
449	foreach ( $this->cart->get_cart() as $key => $values ) {
450	$cart_session[ $key ] = $values;
451	unset( $cart_session[ $key ]['data'] ); // Unset product object.
452	}
453
454	return $cart_session;
455	}
456
457	/**
458	* Save the persistent cart when the cart is updated.
459	*/
460	public function persistent_cart_update() {
461	/**
462	* Filters whether the persistent cart is enabled.
463	*
464	* @since 3.4.0
465	* @param bool $enabled Whether the persistent cart is enabled. Default true.
466	*/
467	if ( get_current_user_id() && apply_filters( 'woocommerce_persistent_cart_enabled', true ) ) {
468	update_user_meta(
469	get_current_user_id(),
470	'_woocommerce_persistent_cart_' . get_current_blog_id(),
471	array(
472	'cart' => $this->get_cart_for_session(),
473	)
474	);
475	}
476	}
477
478	/**
479	* Delete the persistent cart permanently.
480	*/
481	public function persistent_cart_destroy() {
482	/**
483	* Filters whether the persistent cart is enabled.
484	*
485	* @since 3.4.0
486	* @param bool $enabled Whether the persistent cart is enabled. Default true.
487	*/
488	if ( get_current_user_id() && apply_filters( 'woocommerce_persistent_cart_enabled', true ) ) {
489	delete_user_meta( get_current_user_id(), '_woocommerce_persistent_cart_' . get_current_blog_id() );
490	}
491	}
492
493	/**
494	* Set cart hash cookie and items in cart if not already set.
495	*
496	* @param bool $set Should cookies be set (true) or unset.
497	*/
498	private function set_cart_cookies( $set = true ) {
499	if ( $set ) {
500	$setcookies = array(
501	'woocommerce_items_in_cart' => '1',
502	'woocommerce_cart_hash' => WC()->cart->get_cart_hash(),
503	);
504	foreach ( $setcookies as $name => $value ) {
505	if ( ! isset( $_COOKIE[ $name ] ) \|\| $_COOKIE[ $name ] !== $value ) {
506	wc_setcookie( $name, $value );
507	$_COOKIE[ $name ] = $value;
508	}
509	}
510	} else {
511	$unsetcookies = array(
512	'woocommerce_items_in_cart',
513	'woocommerce_cart_hash',
514	);
515	foreach ( $unsetcookies as $name ) {
516	if ( isset( $_COOKIE[ $name ] ) ) {
517	wc_setcookie( $name, 0, time() - HOUR_IN_SECONDS );
518	unset( $_COOKIE[ $name ] );
519	}
520	}
521	}
522
523	do_action( 'woocommerce_set_cart_cookies', $set );
524	}
525
526	/**
527	* Get the persistent cart from the database.
528	*
529	* @since 3.5.0
530	* @return array
531	*/
532	private function get_saved_cart() {
533	$saved_cart = array();
534
535	/**
536	* Filters whether the persistent cart is enabled.
537	*
538	* @since 3.4.0
539	* @param bool $enabled Whether the persistent cart is enabled. Default true.
540	*/
541	if ( apply_filters( 'woocommerce_persistent_cart_enabled', true ) ) {
542	$saved_cart_meta = get_user_meta( get_current_user_id(), '_woocommerce_persistent_cart_' . get_current_blog_id(), true );
543
544	if ( is_array( $saved_cart_meta ) && isset( $saved_cart_meta['cart'] ) ) {
545	$saved_cart = array_filter( (array) $saved_cart_meta['cart'] );
546	}
547	}
548
549	return $saved_cart;
550	}
551
552	/**
553	* Get a cart from an order, if user has permission.
554	*
555	* @since 3.5.0
556	*
557	* @param int $order_id Order ID to try to load.
558	* @param array $cart Current cart array.
559	*
560	* @return array
561	*/
562	private function populate_cart_from_order( $order_id, $cart ) {
563	$order = wc_get_order( $order_id );
564
565	/**
566	* Filter the valid order statuses for reordering.
567	*
568	* @since 3.6.0
569	*
570	* @param array $valid_statuses Array of valid order statuses.
571	*/
572	$valid_statuses = apply_filters( 'woocommerce_valid_order_statuses_for_order_again', array( OrderStatus::COMPLETED ) );
573	if ( ! $order->get_id() \|\| ! $order->has_status( $valid_statuses ) \|\| ! current_user_can( 'order_again', $order->get_id() ) ) {
574	return;
575	}
576
577	if ( apply_filters( 'woocommerce_empty_cart_when_order_again', true ) ) {
578	$cart = array();
579	}
580
581	$inital_cart_size = count( $cart );
582	$order_items = $order->get_items();
583
584	foreach ( $order_items as $item ) {
585	$product_id = (int) apply_filters( 'woocommerce_add_to_cart_product_id', $item->get_product_id() );
586	$quantity = $item->get_quantity();
587	$variation_id = (int) $item->get_variation_id();
588	$variations = array();
589	$cart_item_data = apply_filters( 'woocommerce_order_again_cart_item_data', array(), $item, $order );
590	$product = $item->get_product();
591
592	if ( ! $product ) {
593	continue;
594	}
595
596	// Prevent reordering variable products if no selected variation.
597	if ( ! $variation_id && $product->is_type( ProductType::VARIABLE ) ) {
598	continue;
599	}
600
601	// Prevent reordering items specifically out of stock.
602	if ( ! $product->is_in_stock() ) {
603	continue;
604	}
605
606	foreach ( $item->get_meta_data() as $meta ) {
607	if ( taxonomy_is_product_attribute( $meta->key ) \|\| meta_is_product_attribute( $meta->key, $meta->value, $product_id ) ) {
608	$attribute_key = 'attribute_' . sanitize_title( $meta->key );
609	if ( taxonomy_is_product_attribute( $meta->key ) ) {
610	$variations[ $attribute_key ] = sanitize_title( $meta->value );
611	} else {
612	$variations[ $attribute_key ] = html_entity_decode( wc_clean( $meta->value ), ENT_QUOTES, get_bloginfo( 'charset' ) );
613	}
614	}
615	}
616
617	if ( ! apply_filters( 'woocommerce_add_to_cart_validation', true, $product_id, $quantity, $variation_id, $variations, $cart_item_data ) ) {
618	continue;
619	}
620
621	$product_data = wc_get_product( $variation_id ? $variation_id : $product_id );
622	if ( $product_data instanceof WC_Product && $product_data->is_sold_individually() ) {
623	// phpcs:ignore WooCommerce.Commenting.CommentHooks.MissingHookComment -- Filter documented in CartController::validate_add_to_cart().
624	$quantity = apply_filters( 'woocommerce_add_to_cart_sold_individually_quantity', 1, $quantity, $product_id, $variation_id, $cart_item_data );
625
626	$cart_id = WC()->cart->generate_cart_id( $product_id, $variation_id, $variations, $cart_item_data );
627	// phpcs:ignore WooCommerce.Commenting.CommentHooks.MissingHookComment -- Filter first added in WC_Cart::add_to_cart(), add documentation there.
628	$found_in_cart = apply_filters( 'woocommerce_add_to_cart_sold_individually_found_in_cart', isset( $cart[ $cart_id ] ) && isset( $cart[ $cart_id ]['quantity'] ) && $cart[ $cart_id ]['quantity'] > 0, $product_id, $variation_id, $cart_item_data, $cart_id );
629	if ( $found_in_cart ) {
630	/* translators: %s: product name */
631	$message = sprintf( __( 'You cannot add another "%s" to your cart.', 'woocommerce' ), $product_data->get_name() );
632	// phpcs:ignore WooCommerce.Commenting.CommentHooks.MissingHookComment -- Filter documented in WC_Cart::add_to_cart().
633	$message = apply_filters( 'woocommerce_cart_product_cannot_add_another_message', $message, $product_data );
634	$wp_button_class = wc_wp_theme_get_element_class_name( 'button' ) ? ' ' . wc_wp_theme_get_element_class_name( 'button' ) : '';
635	$message = sprintf( '%s <a href="%s" class="button wc-forward%s">%s</a>', $message, esc_url( wc_get_cart_url() ), esc_attr( $wp_button_class ), __( 'View cart', 'woocommerce' ) );
636	wc_add_notice( $message, 'error' );
637	continue;
638	}
639	}
640
641	// Add to cart directly.
642	$cart_id = WC()->cart->generate_cart_id( $product_id, $variation_id, $variations, $cart_item_data );
643	$product_data = wc_get_product( $variation_id ? $variation_id : $product_id );
644	$cart[ $cart_id ] = apply_filters(
645	'woocommerce_add_order_again_cart_item',
646	array_merge(
647	$cart_item_data,
648	array(
649	'key' => $cart_id,
650	'product_id' => $product_id,
651	'variation_id' => $variation_id,
652	'variation' => $variations,
653	'quantity' => $quantity,
654	'data' => $product_data,
655	'data_hash' => wc_get_cart_item_data_hash( $product_data ),
656	)
657	),
658	$cart_id
659	);
660	}
661
662	do_action_ref_array( 'woocommerce_ordered_again', array( $order->get_id(), $order_items, &$cart ) );
663
664	$num_items_in_cart = count( $cart );
665	$num_items_in_original_order = count( $order_items );
666	$num_items_added = $num_items_in_cart - $inital_cart_size;
667
668	if ( $num_items_in_original_order > $num_items_added ) {
669	wc_add_notice(
670	sprintf(
671	/* translators: %d item count */
672	_n(
673	'%d item from your previous order is currently unavailable and could not be added to your cart.',
674	'%d items from your previous order are currently unavailable and could not be added to your cart.',
675	$num_items_in_original_order - $num_items_added,
676	'woocommerce'
677	),
678	$num_items_in_original_order - $num_items_added
679	),
680	'error'
681	);
682	}
683
684	if ( 0 < $num_items_added ) {
685	wc_add_notice( __( 'The cart has been filled with the items from your previous order.', 'woocommerce' ) );
686	}
687
688	return $cart;
689	}
690
691	/**
692	* Remove shipping data for all packages from session.
693	*
694	* @return void
695	*/
696	private function remove_shipping_for_package_from_session() {
697	$wc_session = WC()->session;
698
699	if ( ! is_a( $wc_session, 'WC_Session_Handler' ) ) {
700	return;
701	}
702
703	foreach ( array_keys( $wc_session->get_session_data() ) as $key ) {
704	if ( 0 === strpos( $key, 'shipping_for_package_' ) ) {
705	$wc_session->set( $key, null );
706	}
707	}
708	}
709
710	/**
711	* Check if the cart has shippable products.
712	*
713	* @return bool
714	*/
715	private function cart_has_shippable_products() {
716	foreach ( $this->cart->get_cart() as $cart_item ) {
717	if ( $cart_item['data']->needs_shipping() ) {
718	return true;
719	}
720	}
721	return false;
722	}
723
724	/**
725	* Removes items from the removed cart contents on next user initiated request.
726	*
727	* @return void
728	*/
729	public function clean_up_removed_cart_contents() {
730	// Limit to page requests initiated by the user.
731	$is_page = is_singular() \|\| is_archive() \|\| is_search();
732
733	if ( is_404() \|\| ! $is_page ) {
734	return;
735	}
736
737	// Don't cleanup if user just removed an item (undo link is being displayed).
738	// phpcs:ignore WordPress.Security.NonceVerification.Recommended
739	if ( isset( $_GET['removed_item'] ) ) {
740	return;
741	}
742
743	// phpcs:ignore WordPress.Security.NonceVerification.Recommended
744	if ( isset( $_GET['undo_item'] ) ) {
745	return;
746	}
747
748	WC()->session->set( 'removed_cart_contents', null );
749	$this->cart->set_removed_cart_contents( array() );
750	}
751	}
752