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Current File : /proc/thread-self/cwd/wp-content/plugins/woocommerce/includes/wc-cart-functions.php
<?php
/**
 * WooCommerce Cart Functions
 *
 * Functions for cart specific things.
 *
 * @package WooCommerce\Functions
 * @version 2.5.0
 */

use Automattic\Jetpack\Constants;

defined( 'ABSPATH' ) || exit;

/**
 * Prevent password protected products being added to the cart.
 *
 * @param  bool $passed     Validation.
 * @param  int  $product_id Product ID.
 * @return bool
 */
function wc_protected_product_add_to_cart( $passed, $product_id ) {
	if ( post_password_required( $product_id ) ) {
		$passed = false;
		wc_add_notice( __( 'This product is protected and cannot be purchased.', 'woocommerce' ), 'error' );
	}
	return $passed;
}
add_filter( 'woocommerce_add_to_cart_validation', 'wc_protected_product_add_to_cart', 10, 2 );

/**
 * Clears the cart session when called.
 */
function wc_empty_cart() {
	if ( ! isset( WC()->cart ) || '' === WC()->cart ) {
		WC()->cart = new WC_Cart();
	}
	WC()->cart->empty_cart( false );
}

/**
 * Load the persistent cart.
 *
 * @param string  $user_login User login.
 * @param WP_User $user       User data.
 * @deprecated 2.3
 */
function wc_load_persistent_cart( $user_login, $user ) {
	if ( ! $user || ! apply_filters( 'woocommerce_persistent_cart_enabled', true ) ) {
		return;
	}

	$saved_cart = get_user_meta( $user->ID, '_woocommerce_persistent_cart_' . get_current_blog_id(), true );

	if ( ! $saved_cart ) {
		return;
	}

	$cart = WC()->session->cart;

	if ( empty( $cart ) || ! is_array( $cart ) || 0 === count( $cart ) ) {
		WC()->session->cart = $saved_cart['cart'];
	}
}

/**
 * Retrieves unvalidated referer from '_wp_http_referer' or HTTP referer.
 *
 * Do not use for redirects, use {@see wp_get_referer()} instead.
 *
 * @since 2.6.1
 * @return string|false Referer URL on success, false on failure.
 */
function wc_get_raw_referer() {
	if ( function_exists( 'wp_get_raw_referer' ) ) {
		return wp_get_raw_referer();
	}

	if ( ! empty( $_REQUEST['_wp_http_referer'] ) ) { // WPCS: input var ok, CSRF ok.
		return wp_unslash( $_REQUEST['_wp_http_referer'] ); // WPCS: input var ok, CSRF ok, sanitization ok.
	} elseif ( ! empty( $_SERVER['HTTP_REFERER'] ) ) { // WPCS: input var ok, CSRF ok.
		return wp_unslash( $_SERVER['HTTP_REFERER'] ); // WPCS: input var ok, CSRF ok, sanitization ok.
	}

	return false;
}

/**
 * Add to cart messages.
 *
 * @param int|array $products Product ID list or single product ID.
 * @param bool      $show_qty Should qty's be shown? Added in 2.6.0.
 * @param bool      $return   Return message rather than add it.
 *
 * @return mixed
 */
function wc_add_to_cart_message( $products, $show_qty = false, $return = false ) {
	$titles = array();
	$count  = 0;

	if ( ! is_array( $products ) ) {
		$products = array( $products => 1 );
		$show_qty = false;
	}

	if ( ! $show_qty ) {
		$products = array_fill_keys( array_keys( $products ), 1 );
	}

	foreach ( $products as $product_id => $qty ) {
		/* translators: %s: product name */
		$titles[] = apply_filters( 'woocommerce_add_to_cart_qty_html', ( $qty > 1 ? absint( $qty ) . ' &times; ' : '' ), $product_id ) . apply_filters( 'woocommerce_add_to_cart_item_name_in_quotes', sprintf( _x( '&ldquo;%s&rdquo;', 'Item name in quotes', 'woocommerce' ), strip_tags( get_the_title( $product_id ) ) ), $product_id );
		$count   += $qty;
	}

	$titles = array_filter( $titles );
	/* translators: %s: product name */
	$added_text = sprintf( _n( '%s has been added to your cart.', '%s have been added to your cart.', $count, 'woocommerce' ), wc_format_list_of_items( $titles ) );

	// Output success messages.
	if ( 'yes' === get_option( 'woocommerce_cart_redirect_after_add' ) ) {
		$return_to = apply_filters( 'woocommerce_continue_shopping_redirect', wc_get_raw_referer() ? wp_validate_redirect( wc_get_raw_referer(), false ) : wc_get_page_permalink( 'shop' ) );
		$message   = sprintf( '<a href="%s" tabindex="1" class="button wc-forward">%s</a> %s', esc_url( $return_to ), esc_html__( 'Continue shopping', 'woocommerce' ), esc_html( $added_text ) );
	} else {
		$message = sprintf( '<a href="%s" tabindex="1" class="button wc-forward">%s</a> %s', esc_url( wc_get_cart_url() ), esc_html__( 'View cart', 'woocommerce' ), esc_html( $added_text ) );
	}

	if ( has_filter( 'wc_add_to_cart_message' ) ) {
		wc_deprecated_function( 'The wc_add_to_cart_message filter', '3.0', 'wc_add_to_cart_message_html' );
		$message = apply_filters( 'wc_add_to_cart_message', $message, $product_id );
	}

	$message = apply_filters( 'wc_add_to_cart_message_html', $message, $products, $show_qty );

	if ( $return ) {
		return $message;
	} else {
		wc_add_notice( $message, apply_filters( 'woocommerce_add_to_cart_notice_type', 'success' ) );
	}
}

/**
 * Comma separate a list of item names, and replace final comma with 'and'.
 *
 * @param  array $items Cart items.
 * @return string
 */
function wc_format_list_of_items( $items ) {
	$item_string = '';

	foreach ( $items as $key => $item ) {
		$item_string .= $item;

		if ( count( $items ) === $key + 2 ) {
			$item_string .= ' ' . __( 'and', 'woocommerce' ) . ' ';
		} elseif ( count( $items ) !== $key + 1 ) {
			$item_string .= ', ';
		}
	}

	return $item_string;
}

/**
 * Clear cart after payment.
 */
function wc_clear_cart_after_payment() {
	global $wp;

	if ( ! empty( $wp->query_vars['order-received'] ) ) {

		$order_id  = absint( $wp->query_vars['order-received'] );
		$order_key = isset( $_GET['key'] ) ? wc_clean( wp_unslash( $_GET['key'] ) ) : ''; // WPCS: input var ok, CSRF ok.

		if ( $order_id > 0 ) {
			$order = wc_get_order( $order_id );

			if ( $order && hash_equals( $order->get_order_key(), $order_key ) ) {
				WC()->cart->empty_cart();
			}
		}
	}

	if ( WC()->session->order_awaiting_payment > 0 ) {
		$order = wc_get_order( WC()->session->order_awaiting_payment );

		if ( $order && $order->get_id() > 0 ) {
			// If the order has not failed, or is not pending, the order must have gone through.
			if ( ! $order->has_status( array( 'failed', 'pending', 'cancelled' ) ) ) {
				WC()->cart->empty_cart();
			}
		}
	}
}
add_action( 'get_header', 'wc_clear_cart_after_payment' );

/**
 * Get the subtotal.
 */
function wc_cart_totals_subtotal_html() {
	echo WC()->cart->get_cart_subtotal(); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
}

/**
 * Get shipping methods.
 */
function wc_cart_totals_shipping_html() {
	$packages = WC()->shipping()->get_packages();
	$first    = true;

	foreach ( $packages as $i => $package ) {
		$chosen_method = isset( WC()->session->chosen_shipping_methods[ $i ] ) ? WC()->session->chosen_shipping_methods[ $i ] : '';
		$product_names = array();

		if ( count( $packages ) > 1 ) {
			foreach ( $package['contents'] as $item_id => $values ) {
				$product_names[ $item_id ] = $values['data']->get_name() . ' &times;' . $values['quantity'];
			}
			$product_names = apply_filters( 'woocommerce_shipping_package_details_array', $product_names, $package );
		}

		wc_get_template(
			'cart/cart-shipping.php',
			array(
				'package'                  => $package,
				'available_methods'        => $package['rates'],
				'show_package_details'     => count( $packages ) > 1,
				'show_shipping_calculator' => is_cart() && apply_filters( 'woocommerce_shipping_show_shipping_calculator', $first, $i, $package ),
				'package_details'          => implode( ', ', $product_names ),
				/* translators: %d: shipping package number */
				'package_name'             => apply_filters( 'woocommerce_shipping_package_name', ( ( $i + 1 ) > 1 ) ? sprintf( _x( 'Shipping %d', 'shipping packages', 'woocommerce' ), ( $i + 1 ) ) : _x( 'Shipping', 'shipping packages', 'woocommerce' ), $i, $package ),
				'index'                    => $i,
				'chosen_method'            => $chosen_method,
				'formatted_destination'    => WC()->countries->get_formatted_address( $package['destination'], ', ' ),
				'has_calculated_shipping'  => WC()->customer->has_calculated_shipping(),
			)
		);

		$first = false;
	}
}

/**
 * Get taxes total.
 */
function wc_cart_totals_taxes_total_html() {
	echo apply_filters( 'woocommerce_cart_totals_taxes_total_html', wc_price( WC()->cart->get_taxes_total() ) ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
}

/**
 * Get a coupon label.
 *
 * @param string|WC_Coupon $coupon Coupon data or code.
 * @param bool             $echo   Echo or return.
 *
 * @return string
 */
function wc_cart_totals_coupon_label( $coupon, $echo = true ) {
	if ( is_string( $coupon ) ) {
		$coupon = new WC_Coupon( $coupon );
	}

	/* translators: %s: coupon code */
	$label = apply_filters( 'woocommerce_cart_totals_coupon_label', sprintf( esc_html__( 'Coupon: %s', 'woocommerce' ), $coupon->get_code() ), $coupon );

	if ( $echo ) {
		echo $label; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
	} else {
		return $label;
	}
}

/**
 * Get coupon display HTML.
 *
 * @param string|WC_Coupon $coupon Coupon data or code.
 */
function wc_cart_totals_coupon_html( $coupon ) {
	if ( is_string( $coupon ) ) {
		$coupon = new WC_Coupon( $coupon );
	}

	$discount_amount_html = '';

	$amount               = WC()->cart->get_coupon_discount_amount( $coupon->get_code(), WC()->cart->display_cart_ex_tax );
	$discount_amount_html = '-' . wc_price( $amount );

	if ( $coupon->get_free_shipping() && empty( $amount ) ) {
		$discount_amount_html = __( 'Free shipping coupon', 'woocommerce' );
	}

	$discount_amount_html = apply_filters( 'woocommerce_coupon_discount_amount_html', $discount_amount_html, $coupon );
	$coupon_html          = $discount_amount_html . ' <a href="' . esc_url( add_query_arg( 'remove_coupon', rawurlencode( $coupon->get_code() ), Constants::is_defined( 'WOOCOMMERCE_CHECKOUT' ) ? wc_get_checkout_url() : wc_get_cart_url() ) ) . '" class="woocommerce-remove-coupon" data-coupon="' . esc_attr( $coupon->get_code() ) . '">' . __( '[Remove]', 'woocommerce' ) . '</a>';

	echo wp_kses( apply_filters( 'woocommerce_cart_totals_coupon_html', $coupon_html, $coupon, $discount_amount_html ), array_replace_recursive( wp_kses_allowed_html( 'post' ), array( 'a' => array( 'data-coupon' => true ) ) ) ); // phpcs:ignore PHPCompatibility.PHP.NewFunctions.array_replace_recursiveFound
}

/**
 * Get order total html including inc tax if needed.
 */
function wc_cart_totals_order_total_html() {
	$value = '<strong>' . WC()->cart->get_total() . '</strong> ';

	// If prices are tax inclusive, show taxes here.
	if ( wc_tax_enabled() && WC()->cart->display_prices_including_tax() ) {
		$tax_string_array = array();
		$cart_tax_totals  = WC()->cart->get_tax_totals();

		if ( get_option( 'woocommerce_tax_total_display' ) === 'itemized' ) {
			foreach ( $cart_tax_totals as $code => $tax ) {
				$tax_string_array[] = sprintf( '%s %s', $tax->formatted_amount, $tax->label );
			}
		} elseif ( ! empty( $cart_tax_totals ) ) {
			$tax_string_array[] = sprintf( '%s %s', wc_price( WC()->cart->get_taxes_total( true, true ) ), WC()->countries->tax_or_vat() );
		}

		if ( ! empty( $tax_string_array ) ) {
			$taxable_address = WC()->customer->get_taxable_address();
			if ( WC()->customer->is_customer_outside_base() && ! WC()->customer->has_calculated_shipping() ) {
				$country = WC()->countries->estimated_for_prefix( $taxable_address[0] ) . WC()->countries->countries[ $taxable_address[0] ];
				/* translators: 1: tax amount 2: country name */
				$tax_text = wp_kses_post( sprintf( __( '(includes %1$s estimated for %2$s)', 'woocommerce' ), implode( ', ', $tax_string_array ), $country ) );
			} else {
				/* translators: %s: tax amount */
				$tax_text = wp_kses_post( sprintf( __( '(includes %s)', 'woocommerce' ), implode( ', ', $tax_string_array ) ) );
			}

			$value .= '<small class="includes_tax">' . $tax_text . '</small>';
		}
	}

	echo apply_filters( 'woocommerce_cart_totals_order_total_html', $value ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
}

/**
 * Get the fee value.
 *
 * @param object $fee Fee data.
 */
function wc_cart_totals_fee_html( $fee ) {
	$cart_totals_fee_html = WC()->cart->display_prices_including_tax() ? wc_price( $fee->total + $fee->tax ) : wc_price( $fee->total );

	echo apply_filters( 'woocommerce_cart_totals_fee_html', $cart_totals_fee_html, $fee ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
}

/**
 * Get a shipping methods full label including price.
 *
 * @param  WC_Shipping_Rate $method Shipping method rate data.
 * @return string
 */
function wc_cart_totals_shipping_method_label( $method ) {
	$label     = $method->get_label();
	$has_cost  = 0 < $method->cost;
	$hide_cost = ! $has_cost && in_array( $method->get_method_id(), array( 'free_shipping', 'local_pickup' ), true );

	if ( $has_cost && ! $hide_cost ) {
		if ( WC()->cart->display_prices_including_tax() ) {
			$label .= ': ' . wc_price( $method->cost + $method->get_shipping_tax() );
			if ( $method->get_shipping_tax() > 0 && ! wc_prices_include_tax() ) {
				$label .= ' <small class="tax_label">' . WC()->countries->inc_tax_or_vat() . '</small>';
			}
		} else {
			$label .= ': ' . wc_price( $method->cost );
			if ( $method->get_shipping_tax() > 0 && wc_prices_include_tax() ) {
				$label .= ' <small class="tax_label">' . WC()->countries->ex_tax_or_vat() . '</small>';
			}
		}
	}

	return apply_filters( 'woocommerce_cart_shipping_method_full_label', $label, $method );
}

/**
 * Round discount.
 *
 * @param  double $value Amount to round.
 * @param  int    $precision DP to round.
 * @return float
 */
function wc_cart_round_discount( $value, $precision ) {
	return wc_round_discount( $value, $precision );
}

/**
 * Gets chosen shipping method IDs from chosen_shipping_methods session, without instance IDs.
 *
 * @since  2.6.2
 * @return string[]
 */
function wc_get_chosen_shipping_method_ids() {
	$method_ids     = array();
	$chosen_methods = WC()->session->get( 'chosen_shipping_methods', array() );
	foreach ( $chosen_methods as $chosen_method ) {
		$chosen_method = explode( ':', $chosen_method );
		$method_ids[]  = current( $chosen_method );
	}
	return $method_ids;
}

/**
 * Get chosen method for package from session.
 *
 * @since  3.2.0
 * @param  int   $key Key of package.
 * @param  array $package Package data array.
 * @return string|bool
 */
function wc_get_chosen_shipping_method_for_package( $key, $package ) {
	$chosen_methods = WC()->session->get( 'chosen_shipping_methods' );
	$chosen_method  = isset( $chosen_methods[ $key ] ) ? $chosen_methods[ $key ] : false;
	$changed        = wc_shipping_methods_have_changed( $key, $package );

	// This is deprecated but here for BW compat. TODO: Remove in 4.0.0.
	$method_counts = WC()->session->get( 'shipping_method_counts' );

	if ( ! empty( $method_counts[ $key ] ) ) {
		$method_count = absint( $method_counts[ $key ] );
	} else {
		$method_count = 0;
	}

	// If not set, not available, or available methods have changed, set to the DEFAULT option.
	if ( ! $chosen_method || $changed || ! isset( $package['rates'][ $chosen_method ] ) || count( $package['rates'] ) !== $method_count ) {
		$chosen_method          = wc_get_default_shipping_method_for_package( $key, $package, $chosen_method );
		$chosen_methods[ $key ] = $chosen_method;
		$method_counts[ $key ]  = count( $package['rates'] );

		WC()->session->set( 'chosen_shipping_methods', $chosen_methods );
		WC()->session->set( 'shipping_method_counts', $method_counts );

		do_action( 'woocommerce_shipping_method_chosen', $chosen_method );
	}
	return $chosen_method;
}

/**
 * Choose the default method for a package.
 *
 * @since  3.2.0
 * @param  int    $key Key of package.
 * @param  array  $package Package data array.
 * @param  string $chosen_method Chosen method id.
 * @return string
 */
function wc_get_default_shipping_method_for_package( $key, $package, $chosen_method ) {
	$rate_keys = array_keys( $package['rates'] );
	$default   = current( $rate_keys );
	$coupons   = WC()->cart->get_coupons();
	foreach ( $coupons as $coupon ) {
		if ( $coupon->get_free_shipping() ) {
			foreach ( $rate_keys as $rate_key ) {
				if ( 0 === stripos( $rate_key, 'free_shipping' ) ) {
					$default = $rate_key;
					break;
				}
			}
			break;
		}
	}
	return apply_filters( 'woocommerce_shipping_chosen_method', $default, $package['rates'], $chosen_method );
}

/**
 * See if the methods have changed since the last request.
 *
 * @since  3.2.0
 * @param  int   $key Key of package.
 * @param  array $package Package data array.
 * @return bool
 */
function wc_shipping_methods_have_changed( $key, $package ) {
	// Lookup previous methods from session.
	$previous_shipping_methods = WC()->session->get( 'previous_shipping_methods' );
	// Get new and old rates.
	$new_rates  = array_keys( $package['rates'] );
	$prev_rates = isset( $previous_shipping_methods[ $key ] ) ? $previous_shipping_methods[ $key ] : false;
	// Update session.
	$previous_shipping_methods[ $key ] = $new_rates;
	WC()->session->set( 'previous_shipping_methods', $previous_shipping_methods );
	return $new_rates !== $prev_rates;
}

/**
 * Gets a hash of important product data that when changed should cause cart items to be invalidated.
 *
 * The woocommerce_cart_item_data_to_validate filter can be used to add custom properties.
 *
 * @param WC_Product $product Product object.
 * @return string
 */
function wc_get_cart_item_data_hash( $product ) {
	return md5(
		wp_json_encode(
			apply_filters(
				'woocommerce_cart_item_data_to_validate',
				array(
					'type'       => $product->get_type(),
					'attributes' => 'variation' === $product->get_type() ? $product->get_variation_attributes() : '',
				),
				$product
			)
		)
	);
}

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