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ðŸ“„ abstract-wc-data.php(24.78 KB)
ðŸ“„ abstract-wc-deprecated-hooks.php(3.11 KB)
ðŸ“„ abstract-wc-integration.php(1.84 KB)
ðŸ“„ abstract-wc-log-handler.php(2.5 KB)
ðŸ“„ abstract-wc-object-query.php(1.94 KB)
ðŸ“„ abstract-wc-order.php(74.76 KB)
ðŸ“„ abstract-wc-payment-gateway.php(14.05 KB)
ðŸ“„ abstract-wc-payment-token.php(5.67 KB)
ðŸ“„ abstract-wc-privacy.php(3.85 KB)
ðŸ“„ abstract-wc-product.php(58.72 KB)
ðŸ“„ abstract-wc-session.php(2.3 KB)
ðŸ“„ abstract-wc-settings-api.php(31.81 KB)
ðŸ“„ abstract-wc-shipping-method.php(16.24 KB)
ðŸ“„ abstract-wc-widget.php(12.17 KB)
ðŸ“„ class-wc-background-process.php(4.87 KB)

Editing: abstract-wc-shipping-method.php

<?php
/**
 * Abstract shipping method
 *
 * @class WC_Shipping_Method
 * @package WooCommerce\Abstracts
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * WooCommerce Shipping Method Class.
 *
 * Extended by shipping methods to handle shipping calculations etc.
 *
 * @class       WC_Shipping_Method
 * @version     3.0.0
 * @package     WooCommerce\Abstracts
 */
abstract class WC_Shipping_Method extends WC_Settings_API {

/**
	 * Features this method supports. Possible features used by core:
	 * - shipping-zones Shipping zone functionality + instances
	 * - instance-settings Instance settings screens.
	 * - settings Non-instance settings screens. Enabled by default for BW compatibility with methods before instances existed.
	 * - instance-settings-modal Allows the instance settings to be loaded within a modal in the zones UI.
	 *
	 * @var array
	 */
	public $supports = array( 'settings' );

/**
	 * Unique ID for the shipping method - must be set.
	 *
	 * @var string
	 */
	public $id = '';

/**
	 * Method title.
	 *
	 * @var string
	 */
	public $method_title = '';

/**
	 * Method description.
	 *
	 * @var string
	 */
	public $method_description = '';

/**
	 * Yes or no based on whether the method is enabled.
	 *
	 * @var string
	 */
	public $enabled = 'yes';

/**
	 * Shipping method title for the frontend.
	 *
	 * @var string
	 */
	public $title;

/**
	 * This is an array of rates - methods must populate this array to register shipping costs.
	 *
	 * @var array
	 */
	public $rates = array();

/**
	 * If 'taxable' tax will be charged for this method (if applicable).
	 *
	 * @var string
	 */
	public $tax_status = 'taxable';

/**
	 * Fee for the method (if applicable).
	 *
	 * @var string
	 */
	public $fee = null;

/**
	 * Minimum fee for the method (if applicable).
	 *
	 * @var string
	 */
	public $minimum_fee = null;

/**
	 * Instance ID if used.
	 *
	 * @var int
	 */
	public $instance_id = 0;

/**
	 * Instance form fields.
	 *
	 * @var array
	 */
	public $instance_form_fields = array();

/**
	 * Instance settings.
	 *
	 * @var array
	 */
	public $instance_settings = array();

/**
	 * Availability - legacy. Used for method Availability.
	 * No longer useful for instance based shipping methods.
	 *
	 * @deprecated 2.6.0
	 * @var string
	 */
	public $availability;

/**
	 * Availability countries - legacy. Used for method Availability.
	 * No longer useful for instance based shipping methods.
	 *
	 * @deprecated 2.6.0
	 * @var array
	 */
	public $countries = array();

/**
	 * Shipping method order.
	 *
	 * @var int
	 */
	public $method_order;

/**
	 * Whether the shipping method has settings or not. Preferably, use {@see has_settings()} instead.
	 *
	 * @var bool
	 */
	public $has_settings;

/**
	 * When the method supports the settings modal, this is the admin settings HTML.
	 * Preferably, use {@see get_admin_options_html()} instead.
	 *
	 * @var string|bool
	 */
	public $settings_html;

/**
	 * Constructor.
	 *
	 * @param int $instance_id Instance ID.
	 */
	public function __construct( $instance_id = 0 ) {
		$this->instance_id = absint( $instance_id );
	}

/**
	 * Check if a shipping method supports a given feature.
	 *
	 * Methods should override this to declare support (or lack of support) for a feature.
	 *
	 * @param string $feature The name of a feature to test support for.
	 * @return bool True if the shipping method supports the feature, false otherwise.
	 */
	public function supports( $feature ) {
		return apply_filters( 'woocommerce_shipping_method_supports', in_array( $feature, $this->supports ), $feature, $this );
	}

/**
	 * Called to calculate shipping rates for this method. Rates can be added using the add_rate() method.
	 *
	 * @param array $package Package array.
	 */
	public function calculate_shipping( $package = array() ) {}

/**
	 * Whether or not we need to calculate tax on top of the shipping rate.
	 *
	 * @return boolean
	 */
	public function is_taxable() {
		return wc_tax_enabled() && 'taxable' === $this->tax_status && ( WC()->customer && ! WC()->customer->get_is_vat_exempt() );
	}

/**
	 * Whether or not this method is enabled in settings.
	 *
	 * @since 2.6.0
	 * @return boolean
	 */
	public function is_enabled() {
		return 'yes' === $this->enabled;
	}

/**
	 * Return the shipping method instance ID.
	 *
	 * @since 2.6.0
	 * @return int
	 */
	public function get_instance_id() {
		return $this->instance_id;
	}

/**
	 * Return the shipping method title.
	 *
	 * @since 2.6.0
	 * @return string
	 */
	public function get_method_title() {
		return apply_filters( 'woocommerce_shipping_method_title', $this->method_title, $this );
	}

/**
	 * Return the shipping method description.
	 *
	 * @since 2.6.0
	 * @return string
	 */
	public function get_method_description() {
		return apply_filters( 'woocommerce_shipping_method_description', $this->method_description, $this );
	}

/**
	 * Return the shipping title which is user set.
	 *
	 * @return string
	 */
	public function get_title() {
		return apply_filters( 'woocommerce_shipping_method_title', $this->title, $this->id );
	}

/**
	 * Return calculated rates for a package.
	 *
	 * @since 2.6.0
	 * @param array $package Package array.
	 * @return array
	 */
	public function get_rates_for_package( $package ) {
		$this->rates = array();
		if ( $this->is_available( $package ) && ( empty( $package['ship_via'] ) || in_array( $this->id, $package['ship_via'] ) ) ) {
			$this->calculate_shipping( $package );
		}
		return $this->rates;
	}

/**
	 * Returns a rate ID based on this methods ID and instance, with an optional
	 * suffix if distinguishing between multiple rates.
	 *
	 * @since 2.6.0
	 * @param string $suffix Suffix.
	 * @return string
	 */
	public function get_rate_id( $suffix = '' ) {
		$rate_id = array( $this->id );

if ( $this->instance_id ) {
			$rate_id[] = $this->instance_id;
		}

if ( $suffix ) {
			$rate_id[] = $suffix;
		}

return implode( ':', $rate_id );
	}

/**
	 * Add a shipping rate. If taxes are not set they will be calculated based on cost.
	 *
	 * @param array $args Arguments (default: array()).
	 */
	public function add_rate( $args = array() ) {
		$args = apply_filters(
			'woocommerce_shipping_method_add_rate_args',
			wp_parse_args(
				$args,
				array(
					'id'             => $this->get_rate_id(), // ID for the rate. If not passed, this id:instance default will be used.
					'label'          => '', // Label for the rate.
					'cost'           => '0', // Amount or array of costs (per item shipping).
					'taxes'          => '', // Pass taxes, or leave empty to have it calculated for you, or 'false' to disable calculations.
					'calc_tax'       => 'per_order', // Calc tax per_order or per_item. Per item needs an array of costs.
					'meta_data'      => array(), // Array of misc meta data to store along with this rate - key value pairs.
					'package'        => false, // Package array this rate was generated for @since 2.6.0.
					'price_decimals' => wc_get_price_decimals(),
				)
			),
			$this
		);

// ID and label are required.
		if ( ! $args['id'] || ! $args['label'] ) {
			return;
		}

// Total up the cost.
		$total_cost = is_array( $args['cost'] ) ? array_sum( $args['cost'] ) : $args['cost'];
		$taxes      = $args['taxes'];

// Taxes - if not an array and not set to false, calc tax based on cost and passed calc_tax variable. This saves shipping methods having to do complex tax calculations.
		if ( ! is_array( $taxes ) && false !== $taxes && $total_cost > 0 && $this->is_taxable() ) {
			$taxes = 'per_item' === $args['calc_tax'] ? $this->get_taxes_per_item( $args['cost'] ) : WC_Tax::calc_shipping_tax( $total_cost, WC_Tax::get_shipping_tax_rates() );
		}

// Round the total cost after taxes have been calculated.
		$total_cost = wc_format_decimal( $total_cost, $args['price_decimals'] );

// Create rate object.
		$rate = new WC_Shipping_Rate();
		$rate->set_id( $args['id'] );
		$rate->set_method_id( $this->id );
		$rate->set_instance_id( $this->instance_id );
		$rate->set_label( $args['label'] );
		$rate->set_cost( $total_cost );
		$rate->set_taxes( $taxes );

if ( ! empty( $args['meta_data'] ) ) {
			foreach ( $args['meta_data'] as $key => $value ) {
				$rate->add_meta_data( $key, $value );
			}
		}

// Store package data.
		if ( $args['package'] ) {
			$items_in_package = array();
			foreach ( $args['package']['contents'] as $item ) {
				$product            = $item['data'];
				$items_in_package[] = $product->get_name() . ' &times; ' . $item['quantity'];
			}
			$rate->add_meta_data( __( 'Items', 'woocommerce' ), implode( ', ', $items_in_package ) );
		}

$this->rates[ $args['id'] ] = apply_filters( 'woocommerce_shipping_method_add_rate', $rate, $args, $this );
	}

/**
	 * Calc taxes per item being shipping in costs array.
	 *
	 * @since 2.6.0
	 * @param  array $costs Costs.
	 * @return array of taxes
	 */
	protected function get_taxes_per_item( $costs ) {
		$taxes = array();

// If we have an array of costs we can look up each items tax class and add tax accordingly.
		if ( is_array( $costs ) ) {

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

foreach ( $costs as $cost_key => $amount ) {
				if ( ! isset( $cart[ $cost_key ] ) ) {
					continue;
				}

$item_taxes = WC_Tax::calc_shipping_tax( $amount, WC_Tax::get_shipping_tax_rates( $cart[ $cost_key ]['data']->get_tax_class() ) );

// Sum the item taxes.
				foreach ( array_keys( $taxes + $item_taxes ) as $key ) {
					$taxes[ $key ] = ( isset( $item_taxes[ $key ] ) ? $item_taxes[ $key ] : 0 ) + ( isset( $taxes[ $key ] ) ? $taxes[ $key ] : 0 );
				}
			}

// Add any cost for the order - order costs are in the key 'order'.
			if ( isset( $costs['order'] ) ) {
				$item_taxes = WC_Tax::calc_shipping_tax( $costs['order'], WC_Tax::get_shipping_tax_rates() );

return $taxes;
	}

/**
	 * Is this method available?
	 *
	 * @param array $package Package.
	 * @return bool
	 */
	public function is_available( $package ) {
		$available = $this->is_enabled();

// Country availability (legacy, for non-zone based methods).
		if ( ! $this->instance_id && $available ) {
			$countries = is_array( $this->countries ) ? $this->countries : array();

switch ( $this->availability ) {
				case 'specific':
				case 'including':
					$available = in_array( $package['destination']['country'], array_intersect( $countries, array_keys( WC()->countries->get_shipping_countries() ) ) );
					break;
				case 'excluding':
					$available = in_array( $package['destination']['country'], array_diff( array_keys( WC()->countries->get_shipping_countries() ), $countries ) );
					break;
				default:
					$available = in_array( $package['destination']['country'], array_keys( WC()->countries->get_shipping_countries() ) );
					break;
			}
		}

return apply_filters( 'woocommerce_shipping_' . $this->id . '_is_available', $available, $package, $this );
	}

/**
	 * Get fee to add to shipping cost.
	 *
	 * @param string|float $fee Fee.
	 * @param float        $total Total.
	 * @return float
	 */
	public function get_fee( $fee, $total ) {
		if ( strstr( $fee, '%' ) ) {
			$fee = ( $total / 100 ) * str_replace( '%', '', $fee );
		}
		if ( ! empty( $this->minimum_fee ) && $this->minimum_fee > $fee ) {
			$fee = $this->minimum_fee;
		}
		return $fee;
	}

/**
	 * Does this method have a settings page?
	 *
	 * @return bool
	 */
	public function has_settings() {
		return $this->instance_id ? $this->supports( 'instance-settings' ) : $this->supports( 'settings' );
	}

/**
	 * Return admin options as a html string.
	 *
	 * @return string
	 */
	public function get_admin_options_html() {
		if ( $this->instance_id ) {
			$settings_html = $this->generate_settings_html( $this->get_instance_form_fields(), false );
		} else {
			$settings_html = $this->generate_settings_html( $this->get_form_fields(), false );
		}

return '<table class="form-table">' . $settings_html . '</table>';
	}

/**
	 * Output the shipping settings screen.
	 */
	public function admin_options() {
		if ( ! $this->instance_id ) {
			echo '<h2>' . esc_html( $this->get_method_title() ) . '</h2>';
		}
		echo wp_kses_post( wpautop( $this->get_method_description() ) );
		echo $this->get_admin_options_html(); // phpcs:ignore WordPress.XSS.EscapeOutput.OutputNotEscaped
	}

/**
	 * Get_option function.
	 *
	 * Gets and option from the settings API, using defaults if necessary to prevent undefined notices.
	 *
	 * @param  string $key Key.
	 * @param  mixed  $empty_value Empty value.
	 * @return mixed  The value specified for the option or a default value for the option.
	 */
	public function get_option( $key, $empty_value = null ) {
		// Instance options take priority over global options.
		if ( $this->instance_id && array_key_exists( $key, $this->get_instance_form_fields() ) ) {
			return $this->get_instance_option( $key, $empty_value );
		}

// Return global option.
		$option = apply_filters( 'woocommerce_shipping_' . $this->id . '_option', parent::get_option( $key, $empty_value ), $key, $this );
		return $option;
	}

/**
	 * Gets an option from the settings API, using defaults if necessary to prevent undefined notices.
	 *
	 * @param  string $key Key.
	 * @param  mixed  $empty_value Empty value.
	 * @return mixed  The value specified for the option or a default value for the option.
	 */
	public function get_instance_option( $key, $empty_value = null ) {
		if ( empty( $this->instance_settings ) ) {
			$this->init_instance_settings();
		}

// Get option default if unset.
		if ( ! isset( $this->instance_settings[ $key ] ) ) {
			$form_fields                     = $this->get_instance_form_fields();
			$this->instance_settings[ $key ] = $this->get_field_default( $form_fields[ $key ] );
		}

if ( ! is_null( $empty_value ) && '' === $this->instance_settings[ $key ] ) {
			$this->instance_settings[ $key ] = $empty_value;
		}

$instance_option = apply_filters( 'woocommerce_shipping_' . $this->id . '_instance_option', $this->instance_settings[ $key ], $key, $this );
		return $instance_option;
	}

/**
	 * Get settings fields for instances of this shipping method (within zones).
	 * Should be overridden by shipping methods to add options.
	 *
	 * @since 2.6.0
	 * @return array
	 */
	public function get_instance_form_fields() {
		return apply_filters( 'woocommerce_shipping_instance_form_fields_' . $this->id, array_map( array( $this, 'set_defaults' ), $this->instance_form_fields ) );
	}

/**
	 * Return the name of the option in the WP DB.
	 *
	 * @since 2.6.0
	 * @return string
	 */
	public function get_instance_option_key() {
		return $this->instance_id ? $this->plugin_id . $this->id . '_' . $this->instance_id . '_settings' : '';
	}

/**
	 * Initialise Settings for instances.
	 *
	 * @since 2.6.0
	 */
	public function init_instance_settings() {
		$this->instance_settings = get_option( $this->get_instance_option_key(), null );

// If there are no settings defined, use defaults.
		if ( ! is_array( $this->instance_settings ) ) {
			$form_fields             = $this->get_instance_form_fields();
			$this->instance_settings = array_merge( array_fill_keys( array_keys( $form_fields ), '' ), wp_list_pluck( $form_fields, 'default' ) );
		}
	}

/**
	 * Processes and saves global shipping method options in the admin area.
	 *
	 * This method is usually attached to woocommerce_update_options_x hooks.
	 *
	 * @since 2.6.0
	 * @return bool was anything saved?
	 */
	public function process_admin_options() {
		if ( ! $this->instance_id ) {
			return parent::process_admin_options();
		}

// Check we are processing the correct form for this instance.
		if ( ! isset( $_REQUEST['instance_id'] ) || absint( $_REQUEST['instance_id'] ) !== $this->instance_id ) { // WPCS: input var ok, CSRF ok.
			return false;
		}

$this->init_instance_settings();

$post_data = $this->get_post_data();

foreach ( $this->get_instance_form_fields() as $key => $field ) {
			if ( 'title' !== $this->get_field_type( $field ) ) {
				try {
					$this->instance_settings[ $key ] = $this->get_field_value( $key, $field, $post_data );
				} catch ( Exception $e ) {
					$this->add_error( $e->getMessage() );
				}
			}
		}

return update_option( $this->get_instance_option_key(), apply_filters( 'woocommerce_shipping_' . $this->id . '_instance_settings_values', $this->instance_settings, $this ), 'yes' );
	}
}

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