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class-wc-checkout.php
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<?php
/**
* Checkout functionality
*
* The WooCommerce checkout class handles the checkout process, collecting user data and processing the payment.
*
* @package WooCommerce/Classes
* @version 3.4.0
*/
defined( 'ABSPATH' ) || exit;
/**
* Checkout class.
*/
class WC_Checkout {
/**
* The single instance of the class.
*
* @var WC_Checkout|null
*/
protected static $instance = null;
/**
* Checkout fields are stored here.
*
* @var array|null
*/
protected $fields = null;
/**
* Holds posted data for backwards compatibility.
*
* @var array
*/
protected $legacy_posted_data = array();
/**
* Gets the main WC_Checkout Instance.
*
* @since 2.1
* @static
* @return WC_Checkout Main instance
*/
public static function instance() {
if ( is_null( self::$instance ) ) {
self::$instance = new self();
// Hook in actions once.
add_action( 'woocommerce_checkout_billing', array( self::$instance, 'checkout_form_billing' ) );
add_action( 'woocommerce_checkout_shipping', array( self::$instance, 'checkout_form_shipping' ) );
// woocommerce_checkout_init action is ran once when the class is first constructed.
do_action( 'woocommerce_checkout_init', self::$instance );
}
return self::$instance;
}
/**
* See if variable is set. Used to support legacy public variables which are no longer defined.
*
* @param string $key Key.
* @return bool
*/
public function __isset( $key ) {
return in_array(
$key,
array(
'enable_signup',
'enable_guest_checkout',
'must_create_account',
'checkout_fields',
'posted',
'shipping_method',
'payment_method',
'customer_id',
'shipping_methods',
),
true
);
}
/**
* Sets the legacy public variables for backwards compatibility.
*
* @param string $key Key.
* @param mixed $value Value.
*/
public function __set( $key, $value ) {
switch ( $key ) {
case 'enable_signup':
$bool_value = wc_string_to_bool( $value );
if ( $bool_value !== $this->is_registration_enabled() ) {
remove_filter( 'woocommerce_checkout_registration_enabled', '__return_true', 0 );
remove_filter( 'woocommerce_checkout_registration_enabled', '__return_false', 0 );
add_filter( 'woocommerce_checkout_registration_enabled', $bool_value ? '__return_true' : '__return_false', 0 );
}
break;
case 'enable_guest_checkout':
$bool_value = wc_string_to_bool( $value );
if ( $bool_value === $this->is_registration_required() ) {
remove_filter( 'woocommerce_checkout_registration_required', '__return_true', 0 );
remove_filter( 'woocommerce_checkout_registration_required', '__return_false', 0 );
add_filter( 'woocommerce_checkout_registration_required', $bool_value ? '__return_false' : '__return_true', 0 );
}
break;
case 'checkout_fields':
$this->fields = $value;
break;
case 'shipping_methods':
WC()->session->set( 'chosen_shipping_methods', $value );
break;
case 'posted':
$this->legacy_posted_data = $value;
break;
}
}
/**
* Gets the legacy public variables for backwards compatibility.
*
* @param string $key Key.
* @return array|string
*/
public function __get( $key ) {
if ( in_array( $key, array( 'posted', 'shipping_method', 'payment_method' ), true ) && empty( $this->legacy_posted_data ) ) {
$this->legacy_posted_data = $this->get_posted_data();
}
switch ( $key ) {
case 'enable_signup':
return $this->is_registration_enabled();
case 'enable_guest_checkout':
return ! $this->is_registration_required();
case 'must_create_account':
return $this->is_registration_required() && ! is_user_logged_in();
case 'checkout_fields':
return $this->get_checkout_fields();
case 'posted':
wc_doing_it_wrong( 'WC_Checkout->posted', 'Use $_POST directly.', '3.0.0' );
return $this->legacy_posted_data;
case 'shipping_method':
return $this->legacy_posted_data['shipping_method'];
case 'payment_method':
return $this->legacy_posted_data['payment_method'];
case 'customer_id':
return apply_filters( 'woocommerce_checkout_customer_id', get_current_user_id() );
case 'shipping_methods':
return (array) WC()->session->get( 'chosen_shipping_methods' );
}
}
/**
* Cloning is forbidden.
*/
public function __clone() {
wc_doing_it_wrong( __FUNCTION__, __( 'Cloning is forbidden.', 'woocommerce' ), '2.1' );
}
/**
* Unserializing instances of this class is forbidden.
*/
public function __wakeup() {
wc_doing_it_wrong( __FUNCTION__, __( 'Unserializing instances of this class is forbidden.', 'woocommerce' ), '2.1' );
}
/**
* Is registration required to checkout?
*
* @since 3.0.0
* @return boolean
*/
public function is_registration_required() {
return apply_filters( 'woocommerce_checkout_registration_required', 'yes' !== get_option( 'woocommerce_enable_guest_checkout' ) );
}
/**
* Is registration enabled on the checkout page?
*
* @since 3.0.0
* @return boolean
*/
public function is_registration_enabled() {
return apply_filters( 'woocommerce_checkout_registration_enabled', 'yes' === get_option( 'woocommerce_enable_signup_and_login_from_checkout' ) );
}
/**
* Get an array of checkout fields.
*
* @param string $fieldset to get.
* @return array
*/
public function get_checkout_fields( $fieldset = '' ) {
if ( is_null( $this->fields ) ) {
$this->fields = array(
'billing' => WC()->countries->get_address_fields( $this->get_value( 'billing_country' ), 'billing_' ),
'shipping' => WC()->countries->get_address_fields( $this->get_value( 'shipping_country' ), 'shipping_' ),
'account' => array(),
'order' => array(
'order_comments' => array(
'type' => 'textarea',
'class' => array( 'notes' ),
'label' => __( 'Order notes', 'woocommerce' ),
'placeholder' => esc_attr__( 'Notes about your order, e.g. special notes for delivery.', 'woocommerce' ),
),
),
);
if ( 'no' === get_option( 'woocommerce_registration_generate_username' ) ) {
$this->fields['account']['account_username'] = array(
'type' => 'text',
'label' => __( 'Account username', 'woocommerce' ),
'required' => true,
'placeholder' => esc_attr__( 'Username', 'woocommerce' ),
);
}
if ( 'no' === get_option( 'woocommerce_registration_generate_password' ) ) {
$this->fields['account']['account_password'] = array(
'type' => 'password',
'label' => __( 'Create account password', 'woocommerce' ),
'required' => true,
'placeholder' => esc_attr__( 'Password', 'woocommerce' ),
);
}
$this->fields = apply_filters( 'woocommerce_checkout_fields', $this->fields );
}
if ( $fieldset ) {
return $this->fields[ $fieldset ];
} else {
return $this->fields;
}
}
/**
* When we process the checkout, lets ensure cart items are rechecked to prevent checkout.
*/
public function check_cart_items() {
do_action( 'woocommerce_check_cart_items' );
}
/**
* Output the billing form.
*/
public function checkout_form_billing() {
wc_get_template( 'checkout/form-billing.php', array( 'checkout' => $this ) );
}
/**
* Output the shipping form.
*/
public function checkout_form_shipping() {
wc_get_template( 'checkout/form-shipping.php', array( 'checkout' => $this ) );
}
/**
* Create an order. Error codes:
* 520 - Cannot insert order into the database.
* 521 - Cannot get order after creation.
* 522 - Cannot update order.
* 525 - Cannot create line item.
* 526 - Cannot create fee item.
* 527 - Cannot create shipping item.
* 528 - Cannot create tax item.
* 529 - Cannot create coupon item.
*
* @throws Exception When checkout validation fails.
* @param array $data Posted data.
* @return int|WP_ERROR
*/
public function create_order( $data ) {
// Give plugins the opportunity to create an order themselves.
$order_id = apply_filters( 'woocommerce_create_order', null, $this );
if ( $order_id ) {
return $order_id;
}
try {
$order_id = absint( WC()->session->get( 'order_awaiting_payment' ) );
$cart_hash = md5( wp_json_encode( wc_clean( WC()->cart->get_cart_for_session() ) ) . WC()->cart->total );
$available_gateways = WC()->payment_gateways->get_available_payment_gateways();
$order = $order_id ? wc_get_order( $order_id ) : null;
/**
* If there is an order pending payment, we can resume it here so
* long as it has not changed. If the order has changed, i.e.
* different items or cost, create a new order. We use a hash to
* detect changes which is based on cart items + order total.
*/
if ( $order && $order->has_cart_hash( $cart_hash ) && $order->has_status( array( 'pending', 'failed' ) ) ) {
// Action for 3rd parties.
do_action( 'woocommerce_resume_order', $order_id );
// Remove all items - we will re-add them later.
$order->remove_order_items();
} else {
$order = new WC_Order();
}
foreach ( $data as $key => $value ) {
if ( is_callable( array( $order, "set_{$key}" ) ) ) {
$order->{"set_{$key}"}( $value );
// Store custom fields prefixed with wither shipping_ or billing_. This is for backwards compatibility with 2.6.x.
// TODO: Fix conditional to only include shipping/billing address fields in a smarter way without str(i)pos.
} elseif ( ( 0 === stripos( $key, 'billing_' ) || 0 === stripos( $key, 'shipping_' ) )
&& ! in_array( $key, array( 'shipping_method', 'shipping_total', 'shipping_tax' ), true ) ) {
$order->update_meta_data( '_' . $key, $value );
}
}
$order->set_created_via( 'checkout' );
$order->set_cart_hash( $cart_hash );
$order->set_customer_id( apply_filters( 'woocommerce_checkout_customer_id', get_current_user_id() ) );
$order->set_currency( get_woocommerce_currency() );
$order->set_prices_include_tax( 'yes' === get_option( 'woocommerce_prices_include_tax' ) );
$order->set_customer_ip_address( WC_Geolocation::get_ip_address() );
$order->set_customer_user_agent( wc_get_user_agent() );
$order->set_customer_note( isset( $data['order_comments'] ) ? $data['order_comments'] : '' );
$order->set_payment_method( isset( $available_gateways[ $data['payment_method'] ] ) ? $available_gateways[ $data['payment_method'] ] : $data['payment_method'] );
$order->set_shipping_total( WC()->cart->get_shipping_total() );
$order->set_discount_total( WC()->cart->get_discount_total() );
$order->set_discount_tax( WC()->cart->get_discount_tax() );
$order->set_cart_tax( WC()->cart->get_cart_contents_tax() + WC()->cart->get_fee_tax() );
$order->set_shipping_tax( WC()->cart->get_shipping_tax() );
$order->set_total( WC()->cart->get_total( 'edit' ) );
$this->create_order_line_items( $order, WC()->cart );
$this->create_order_fee_lines( $order, WC()->cart );
$this->create_order_shipping_lines( $order, WC()->session->get( 'chosen_shipping_methods' ), WC()->shipping->get_packages() );
$this->create_order_tax_lines( $order, WC()->cart );
$this->create_order_coupon_lines( $order, WC()->cart );
/**
* Action hook to adjust order before save.
*
* @since 3.0.0
*/
do_action( 'woocommerce_checkout_create_order', $order, $data );
// Save the order.
$order_id = $order->save();
do_action( 'woocommerce_checkout_update_order_meta', $order_id, $data );
return $order_id;
} catch ( Exception $e ) {
return new WP_Error( 'checkout-error', $e->getMessage() );
}
}
/**
* Add line items to the order.
*
* @param WC_Order $order Order instance.
* @param WC_Cart $cart Cart instance.
*/
public function create_order_line_items( &$order, $cart ) {
foreach ( $cart->get_cart() as $cart_item_key => $values ) {
/**
* Filter hook to get initial item object.
*
* @since 3.1.0
*/
$item = apply_filters( 'woocommerce_checkout_create_order_line_item_object', new WC_Order_Item_Product(), $cart_item_key, $values, $order );
$product = $values['data'];
$item->legacy_values = $values; // @deprecated For legacy actions.
$item->legacy_cart_item_key = $cart_item_key; // @deprecated For legacy actions.
$item->set_props(
array(
'quantity' => $values['quantity'],
'variation' => $values['variation'],
'subtotal' => $values['line_subtotal'],
'total' => $values['line_total'],
'subtotal_tax' => $values['line_subtotal_tax'],
'total_tax' => $values['line_tax'],
'taxes' => $values['line_tax_data'],
)
);
if ( $product ) {
$item->set_props(
array(
'name' => $product->get_name(),
'tax_class' => $product->get_tax_class(),
'product_id' => $product->is_type( 'variation' ) ? $product->get_parent_id() : $product->get_id(),
'variation_id' => $product->is_type( 'variation' ) ? $product->get_id() : 0,
)
);
}
$item->set_backorder_meta();
/**
* Action hook to adjust item before save.
*
* @since 3.0.0
*/
do_action( 'woocommerce_checkout_create_order_line_item', $item, $cart_item_key, $values, $order );
// Add item to order and save.
$order->add_item( $item );
}
}
/**
* Add fees to the order.
*
* @param WC_Order $order Order instance.
* @param WC_Cart $cart Cart instance.
*/
public function create_order_fee_lines( &$order, $cart ) {
foreach ( $cart->get_fees() as $fee_key => $fee ) {
$item = new WC_Order_Item_Fee();
$item->legacy_fee = $fee; // @deprecated For legacy actions.
$item->legacy_fee_key = $fee_key; // @deprecated For legacy actions.
$item->set_props(
array(
'name' => $fee->name,
'tax_class' => $fee->taxable ? $fee->tax_class : 0,
'amount' => $fee->amount,
'total' => $fee->total,
'total_tax' => $fee->tax,
'taxes' => array(
'total' => $fee->tax_data,
),
)
);
/**
* Action hook to adjust item before save.
*
* @since 3.0.0
*/
do_action( 'woocommerce_checkout_create_order_fee_item', $item, $fee_key, $fee, $order );
// Add item to order and save.
$order->add_item( $item );
}
}
/**
* Add shipping lines to the order.
*
* @param WC_Order $order Order Instance.
* @param array $chosen_shipping_methods Chosen shipping methods.
* @param array $packages Packages.
*/
public function create_order_shipping_lines( &$order, $chosen_shipping_methods, $packages ) {
foreach ( $packages as $package_key => $package ) {
if ( isset( $chosen_shipping_methods[ $package_key ], $package['rates'][ $chosen_shipping_methods[ $package_key ] ] ) ) {
$shipping_rate = $package['rates'][ $chosen_shipping_methods[ $package_key ] ];
$item = new WC_Order_Item_Shipping();
$item->legacy_package_key = $package_key; // @deprecated For legacy actions.
$item->set_props(
array(
'method_title' => $shipping_rate->label,
'method_id' => $shipping_rate->method_id,
'instance_id' => $shipping_rate->instance_id,
'total' => wc_format_decimal( $shipping_rate->cost ),
'taxes' => array(
'total' => $shipping_rate->taxes,
),
)
);
foreach ( $shipping_rate->get_meta_data() as $key => $value ) {
$item->add_meta_data( $key, $value, true );
}
/**
* Action hook to adjust item before save.
*
* @since 3.0.0
*/
do_action( 'woocommerce_checkout_create_order_shipping_item', $item, $package_key, $package, $order );
// Add item to order and save.
$order->add_item( $item );
}
}
}
/**
* Add tax lines to the order.
*
* @param WC_Order $order Order instance.
* @param WC_Cart $cart Cart instance.
*/
public function create_order_tax_lines( &$order, $cart ) {
foreach ( array_keys( $cart->get_cart_contents_taxes() + $cart->get_shipping_taxes() + $cart->get_fee_taxes() ) as $tax_rate_id ) {
if ( $tax_rate_id && apply_filters( 'woocommerce_cart_remove_taxes_zero_rate_id', 'zero-rated' ) !== $tax_rate_id ) {
$item = new WC_Order_Item_Tax();
$item->set_props(
array(
'rate_id' => $tax_rate_id,
'tax_total' => $cart->get_tax_amount( $tax_rate_id ),
'shipping_tax_total' => $cart->get_shipping_tax_amount( $tax_rate_id ),
'rate_code' => WC_Tax::get_rate_code( $tax_rate_id ),
'label' => WC_Tax::get_rate_label( $tax_rate_id ),
'compound' => WC_Tax::is_compound( $tax_rate_id ),
)
);
/**
* Action hook to adjust item before save.
*
* @since 3.0.0
*/
do_action( 'woocommerce_checkout_create_order_tax_item', $item, $tax_rate_id, $order );
// Add item to order and save.
$order->add_item( $item );
}
}
}
/**
* Add coupon lines to the order.
*
* @param WC_Order $order Order instance.
* @param WC_Cart $cart Cart instance.
*/
public function create_order_coupon_lines( &$order, $cart ) {
foreach ( $cart->get_coupons() as $code => $coupon ) {
$item = new WC_Order_Item_Coupon();
$item->set_props(
array(
'code' => $code,
'discount' => $cart->get_coupon_discount_amount( $code ),
'discount_tax' => $cart->get_coupon_discount_tax_amount( $code ),
)
);
$item->add_meta_data( 'coupon_data', $coupon->get_data() );
/**
* Action hook to adjust item before save.
*
* @since 3.0.0
*/
do_action( 'woocommerce_checkout_create_order_coupon_item', $item, $code, $coupon, $order );
// Add item to order and save.
$order->add_item( $item );
}
}
/**
* See if a fieldset should be skipped.
*
* @since 3.0.0
* @param string $fieldset_key Fieldset key.
* @param array $data Posted data.
* @return bool
*/
protected function maybe_skip_fieldset( $fieldset_key, $data ) {
if ( 'shipping' === $fieldset_key && ( ! $data['ship_to_different_address'] || ! WC()->cart->needs_shipping_address() ) ) {
return true;
}
if ( 'account' === $fieldset_key && ( is_user_logged_in() || ( ! $this->is_registration_required() && empty( $data['createaccount'] ) ) ) ) {
return true;
}
return false;
}
/**
* Get posted data from the checkout form.
*
* @since 3.1.0
* @return array of data.
*/
public function get_posted_data() {
$skipped = array();
$data = array(
'terms' => (int) isset( $_POST['terms'] ), // WPCS: input var ok, CSRF ok.
'createaccount' => (int) ! empty( $_POST['createaccount'] ), // WPCS: input var ok, CSRF ok.
'payment_method' => isset( $_POST['payment_method'] ) ? wc_clean( wp_unslash( $_POST['payment_method'] ) ) : '', // WPCS: input var ok, CSRF ok.
'shipping_method' => isset( $_POST['shipping_method'] ) ? wc_clean( wp_unslash( $_POST['shipping_method'] ) ) : '', // WPCS: input var ok, CSRF ok.
'ship_to_different_address' => ! empty( $_POST['ship_to_different_address'] ) && ! wc_ship_to_billing_address_only(), // WPCS: input var ok, CSRF ok.
'woocommerce_checkout_update_totals' => isset( $_POST['woocommerce_checkout_update_totals'] ), // WPCS: input var ok, CSRF ok.
);
foreach ( $this->get_checkout_fields() as $fieldset_key => $fieldset ) {
if ( $this->maybe_skip_fieldset( $fieldset_key, $data ) ) {
$skipped[] = $fieldset_key;
continue;
}
foreach ( $fieldset as $key => $field ) {
$type = sanitize_title( isset( $field['type'] ) ? $field['type'] : 'text' );
switch ( $type ) {
case 'checkbox':
$value = isset( $_POST[ $key ] ) ? 1 : ''; // WPCS: input var ok, CSRF ok.
break;
case 'multiselect':
$value = isset( $_POST[ $key ] ) ? implode( ', ', wc_clean( wp_unslash( $_POST[ $key ] ) ) ) : ''; // WPCS: input var ok, CSRF ok.
break;
case 'textarea':
$value = isset( $_POST[ $key ] ) ? wc_sanitize_textarea( wp_unslash( $_POST[ $key ] ) ) : ''; // WPCS: input var ok, CSRF ok.
break;
default:
$value = isset( $_POST[ $key ] ) ? wc_clean( wp_unslash( $_POST[ $key ] ) ) : ''; // WPCS: input var ok, CSRF ok.
break;
}
$data[ $key ] = apply_filters( 'woocommerce_process_checkout_' . $type . '_field', apply_filters( 'woocommerce_process_checkout_field_' . $key, $value ) );
}
}
if ( in_array( 'shipping', $skipped, true ) && ( WC()->cart->needs_shipping_address() || wc_ship_to_billing_address_only() ) ) {
foreach ( $this->get_checkout_fields( 'shipping' ) as $key => $field ) {
$data[ $key ] = isset( $data[ 'billing_' . substr( $key, 9 ) ] ) ? $data[ 'billing_' . substr( $key, 9 ) ] : '';
}
}
// BW compatibility.
$this->legacy_posted_data = $data;
return apply_filters( 'woocommerce_checkout_posted_data', $data );
}
/**
* Validates the posted checkout data based on field properties.
*
* @since 3.0.0
* @param array $data An array of posted data.
* @param WP_Error $errors Validation error.
*/
protected function validate_posted_data( &$data, &$errors ) {
foreach ( $this->get_checkout_fields() as $fieldset_key => $fieldset ) {
if ( $this->maybe_skip_fieldset( $fieldset_key, $data ) ) {
continue;
}
foreach ( $fieldset as $key => $field ) {
if ( ! isset( $data[ $key ] ) ) {
continue;
}
$required = ! empty( $field['required'] );
$format = array_filter( isset( $field['validate'] ) ? (array) $field['validate'] : array() );
$field_label = isset( $field['label'] ) ? $field['label'] : '';
switch ( $fieldset_key ) {
case 'shipping':
/* translators: %s: field name */
$field_label = sprintf( __( 'Shipping %s', 'woocommerce' ), $field_label );
break;
case 'billing':
/* translators: %s: field name */
$field_label = sprintf( __( 'Billing %s', 'woocommerce' ), $field_label );
break;
}
if ( in_array( 'postcode', $format, true ) ) {
$country = isset( $data[ $fieldset_key . '_country' ] ) ? $data[ $fieldset_key . '_country' ] : WC()->customer->{"get_{$fieldset_key}_country"}();
$data[ $key ] = wc_format_postcode( $data[ $key ], $country );
if ( '' !== $data[ $key ] && ! WC_Validation::is_postcode( $data[ $key ], $country ) ) {
/* translators: %s: field name */
$errors->add( 'validation', sprintf( __( '%s is not a valid postcode / ZIP.', 'woocommerce' ), '<strong>' . esc_html( $field_label ) . '</strong>' ) );
}
}
if ( in_array( 'phone', $format, true ) ) {
$data[ $key ] = wc_format_phone_number( $data[ $key ] );
if ( '' !== $data[ $key ] && ! WC_Validation::is_phone( $data[ $key ] ) ) {
/* translators: %s: phone number */
$errors->add( 'validation', sprintf( __( '%s is not a valid phone number.', 'woocommerce' ), '<strong>' . esc_html( $field_label ) . '</strong>' ) );
}
}
if ( in_array( 'email', $format, true ) && '' !== $data[ $key ] ) {
$data[ $key ] = sanitize_email( $data[ $key ] );
if ( ! is_email( $data[ $key ] ) ) {
/* translators: %s: email address */
$errors->add( 'validation', sprintf( __( '%s is not a valid email address.', 'woocommerce' ), '<strong>' . esc_html( $field_label ) . '</strong>' ) );
continue;
}
}
if ( '' !== $data[ $key ] && in_array( 'state', $format, true ) ) {
$country = isset( $data[ $fieldset_key . '_country' ] ) ? $data[ $fieldset_key . '_country' ] : WC()->customer->{"get_{$fieldset_key}_country"}();
$valid_states = WC()->countries->get_states( $country );
if ( ! empty( $valid_states ) && is_array( $valid_states ) && count( $valid_states ) > 0 ) {
$valid_state_values = array_map( 'wc_strtoupper', array_flip( array_map( 'wc_strtoupper', $valid_states ) ) );
$data[ $key ] = wc_strtoupper( $data[ $key ] );
if ( isset( $valid_state_values[ $data[ $key ] ] ) ) {
// With this part we consider state value to be valid as well, convert it to the state key for the valid_states check below.
$data[ $key ] = $valid_state_values[ $data[ $key ] ];
}
if ( ! in_array( $data[ $key ], $valid_state_values, true ) ) {
/* translators: 1: state field 2: valid states */
$errors->add( 'validation', sprintf( __( '%1$s is not valid. Please enter one of the following: %2$s', 'woocommerce' ), '<strong>' . esc_html( $field_label ) . '</strong>', implode( ', ', $valid_states ) ) );
}
}
}
if ( $required && '' === $data[ $key ] ) {
/* translators: %s: field name */
$errors->add( 'required-field', apply_filters( 'woocommerce_checkout_required_field_notice', sprintf( __( '%s is a required field.', 'woocommerce' ), '<strong>' . esc_html( $field_label ) . '</strong>' ), $field_label ) );
}
}
}
}
/**
* Validates that the checkout has enough info to proceed.
*
* @since 3.0.0
* @param array $data An array of posted data.
* @param WP_Error $errors Validation errors.
*/
protected function validate_checkout( &$data, &$errors ) {
$this->validate_posted_data( $data, $errors );
$this->check_cart_items();
if ( empty( $data['woocommerce_checkout_update_totals'] ) && ! empty( $_POST['terms-field'] ) && empty( $data['terms'] ) && apply_filters( 'woocommerce_checkout_show_terms', wc_get_page_id( 'terms' ) > 0 ) ) { // WPCS: input var ok, CSRF ok.
$errors->add( 'terms', __( 'Please read and accept the terms and conditions to proceed with your order.', 'woocommerce' ) );
}
if ( WC()->cart->needs_shipping() ) {
$shipping_country = WC()->customer->get_shipping_country();
if ( empty( $shipping_country ) ) {
$errors->add( 'shipping', __( 'Please enter an address to continue.', 'woocommerce' ) );
} elseif ( ! in_array( WC()->customer->get_shipping_country(), array_keys( WC()->countries->get_shipping_countries() ), true ) ) {
/* translators: %s: shipping location */
$errors->add( 'shipping', sprintf( __( 'Unfortunately <strong>we do not ship %s</strong>. Please enter an alternative shipping address.', 'woocommerce' ), WC()->countries->shipping_to_prefix() . ' ' . WC()->customer->get_shipping_country() ) );
} else {
$chosen_shipping_methods = WC()->session->get( 'chosen_shipping_methods' );
foreach ( WC()->shipping->get_packages() as $i => $package ) {
if ( ! isset( $chosen_shipping_methods[ $i ], $package['rates'][ $chosen_shipping_methods[ $i ] ] ) ) {
$errors->add( 'shipping', __( 'No shipping method has been selected. Please double check your address, or contact us if you need any help.', 'woocommerce' ) );
}
}
}
}
if ( WC()->cart->needs_payment() ) {
$available_gateways = WC()->payment_gateways->get_available_payment_gateways();
if ( ! isset( $available_gateways[ $data['payment_method'] ] ) ) {
$errors->add( 'payment', __( 'Invalid payment method.', 'woocommerce' ) );
} else {
$available_gateways[ $data['payment_method'] ]->validate_fields();
}
}
do_action( 'woocommerce_after_checkout_validation', $data, $errors );
}
/**
* Set address field for customer.
*
* @since 3.0.7
* @param string $field String to update.
* @param string $key Field key.
* @param array $data Array of data to get the value from.
*/
protected function set_customer_address_fields( $field, $key, $data ) {
if ( isset( $data[ "billing_{$field}" ] ) ) {
WC()->customer->{"set_billing_{$field}"}( $data[ "billing_{$field}" ] );
WC()->customer->{"set_shipping_{$field}"}( $data[ "billing_{$field}" ] );
}
if ( isset( $data[ "shipping_{$field}" ] ) ) {
WC()->customer->{"set_shipping_{$field}"}( $data[ "shipping_{$field}" ] );
}
}
/**
* Update customer and session data from the posted checkout data.
*
* @since 3.0.0
* @param array $data Posted data.
*/
protected function update_session( $data ) {
// Update both shipping and billing to the passed billing address first if set.
$address_fields = array(
'address_1',
'address_2',
'city',
'postcode',
'state',
'country',
);
array_walk( $address_fields, array( $this, 'set_customer_address_fields' ), $data );
WC()->customer->save();
// Update customer shipping and payment method to posted method.
$chosen_shipping_methods = WC()->session->get( 'chosen_shipping_methods' );
if ( is_array( $data['shipping_method'] ) ) {
foreach ( $data['shipping_method'] as $i => $value ) {
$chosen_shipping_methods[ $i ] = $value;
}
}
WC()->session->set( 'chosen_shipping_methods', $chosen_shipping_methods );
WC()->session->set( 'chosen_payment_method', $data['payment_method'] );
// Update cart totals now we have customer address.
WC()->cart->calculate_totals();
}
/**
* Process an order that does require payment.
*
* @since 3.0.0
* @param int $order_id Order ID.
* @param string $payment_method Payment method.
*/
protected function process_order_payment( $order_id, $payment_method ) {
$available_gateways = WC()->payment_gateways->get_available_payment_gateways();
if ( ! isset( $available_gateways[ $payment_method ] ) ) {
return;
}
// Store Order ID in session so it can be re-used after payment failure.
WC()->session->set( 'order_awaiting_payment', $order_id );
// Process Payment.
$result = $available_gateways[ $payment_method ]->process_payment( $order_id );
// Redirect to success/confirmation/payment page.
if ( isset( $result['result'] ) && 'success' === $result['result'] ) {
$result = apply_filters( 'woocommerce_payment_successful_result', $result, $order_id );
if ( is_ajax() ) {
wp_send_json( $result );
} else {
wp_redirect( $result['redirect'] );
exit;
}
}
}
/**
* Process an order that doesn't require payment.
*
* @since 3.0.0
* @param int $order_id Order ID.
*/
protected function process_order_without_payment( $order_id ) {
$order = wc_get_order( $order_id );
$order->payment_complete();
wc_empty_cart();
if ( is_ajax() ) {
wp_send_json(
array(
'result' => 'success',
'redirect' => apply_filters( 'woocommerce_checkout_no_payment_needed_redirect', $order->get_checkout_order_received_url(), $order ),
)
);
} else {
wp_safe_redirect(
apply_filters( 'woocommerce_checkout_no_payment_needed_redirect', $order->get_checkout_order_received_url(), $order )
);
exit;
}
}
/**
* Create a new customer account if needed.
*
* @throws Exception When not able to create customer.
* @param array $data Posted data.
*/
protected function process_customer( $data ) {
$customer_id = apply_filters( 'woocommerce_checkout_customer_id', get_current_user_id() );
if ( ! is_user_logged_in() && ( $this->is_registration_required() || ! empty( $data['createaccount'] ) ) ) {
$username = ! empty( $data['account_username'] ) ? $data['account_username'] : '';
$password = ! empty( $data['account_password'] ) ? $data['account_password'] : '';
$customer_id = wc_create_new_customer( $data['billing_email'], $username, $password );
if ( is_wp_error( $customer_id ) ) {
throw new Exception( $customer_id->get_error_message() );
}
wp_set_current_user( $customer_id );
wc_set_customer_auth_cookie( $customer_id );
// As we are now logged in, checkout will need to refresh to show logged in data.
WC()->session->set( 'reload_checkout', true );
// Also, recalculate cart totals to reveal any role-based discounts that were unavailable before registering.
WC()->cart->calculate_totals();
}
// On multisite, ensure user exists on current site, if not add them before allowing login.
if ( $customer_id && is_multisite() && is_user_logged_in() && ! is_user_member_of_blog() ) {
add_user_to_blog( get_current_blog_id(), $customer_id, 'customer' );
}
// Add customer info from other fields.
if ( $customer_id && apply_filters( 'woocommerce_checkout_update_customer_data', true, $this ) ) {
$customer = new WC_Customer( $customer_id );
if ( ! empty( $data['billing_first_name'] ) ) {
$customer->set_first_name( $data['billing_first_name'] );
}
if ( ! empty( $data['billing_last_name'] ) ) {
$customer->set_last_name( $data['billing_last_name'] );
}
// If the display name is an email, update to the user's full name.
if ( is_email( $customer->get_display_name() ) ) {
$customer->set_display_name( $data['billing_first_name'] . ' ' . $data['billing_last_name'] );
}
foreach ( $data as $key => $value ) {
// Use setters where available.
if ( is_callable( array( $customer, "set_{$key}" ) ) ) {
$customer->{"set_{$key}"}( $value );
// Store custom fields prefixed with wither shipping_ or billing_.
} elseif ( 0 === stripos( $key, 'billing_' ) || 0 === stripos( $key, 'shipping_' ) ) {
$customer->update_meta_data( $key, $value );
}
}
/**
* Action hook to adjust customer before save.
*
* @since 3.0.0
*/
do_action( 'woocommerce_checkout_update_customer', $customer, $data );
$customer->save();
}
do_action( 'woocommerce_checkout_update_user_meta', $customer_id, $data );
}
/**
* If checkout failed during an AJAX call, send failure response.
*/
protected function send_ajax_failure_response() {
if ( is_ajax() ) {
// Only print notices if not reloading the checkout, otherwise they're lost in the page reload.
if ( ! isset( WC()->session->reload_checkout ) ) {
ob_start();
wc_print_notices();
$messages = ob_get_clean();
}
$response = array(
'result' => 'failure',
'messages' => isset( $messages ) ? $messages : '',
'refresh' => isset( WC()->session->refresh_totals ),
'reload' => isset( WC()->session->reload_checkout ),
);
unset( WC()->session->refresh_totals, WC()->session->reload_checkout );
wp_send_json( $response );
}
}
/**
* Process the checkout after the confirm order button is pressed.
*
* @throws Exception When validation fails.
*/
public function process_checkout() {
try {
$nonce_value = wc_get_var( $_REQUEST['woocommerce-process-checkout-nonce'], wc_get_var( $_REQUEST['_wpnonce'], '' ) ); // @codingStandardsIgnoreLine.
if ( empty( $nonce_value ) || ! wp_verify_nonce( $nonce_value, 'woocommerce-process_checkout' ) ) {
WC()->session->set( 'refresh_totals', true );
throw new Exception( __( 'We were unable to process your order, please try again.', 'woocommerce' ) );
}
wc_maybe_define_constant( 'WOOCOMMERCE_CHECKOUT', true );
wc_set_time_limit( 0 );
do_action( 'woocommerce_before_checkout_process' );
if ( WC()->cart->is_empty() ) {
/* translators: %s: shop cart url */
throw new Exception( sprintf( __( 'Sorry, your session has expired. <a href="%s" class="wc-backward">Return to shop</a>', 'woocommerce' ), esc_url( wc_get_page_permalink( 'shop' ) ) ) );
}
do_action( 'woocommerce_checkout_process' );
$errors = new WP_Error();
$posted_data = $this->get_posted_data();
// Update session for customer and totals.
$this->update_session( $posted_data );
// Validate posted data and cart items before proceeding.