class-wc-cart-session.php — WooCommerce 10.9.4

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

woocommerce / includes Last commit date

class-wc-cart-session.php

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