334 lines
8.9 KiB
PHP
334 lines
8.9 KiB
PHP
<?php
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/**
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* PayPal Commerce Functions
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*
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* @package easy-digital-downloads
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* @subpackage Gateways\PayPal
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* @copyright Copyright (c) 2021, Sandhills Development, LLC
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* @license GPL2+
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* @since 2.11
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*/
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namespace EDD\Gateways\PayPal;
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use EDD\Gateways\PayPal\Exceptions\Authentication_Exception;
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/**
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* Determines whether or not there's a valid REST API connection.
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*
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* @param string $mode Mode to check (`live` or `sandbox`).
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*
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* @since 2.11
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* @return bool
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*/
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function has_rest_api_connection( $mode = '' ) {
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try {
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$api = new API( $mode );
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return true;
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} catch ( Authentication_Exception $e ) {
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return false;
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}
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}
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/**
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* Determines whether or not the account is ready to accept payments.
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* Requirements:
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*
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* - API keys must be set.
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* - Merchant account must be ready to accept payments.
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*
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* @see API::set_credentials()
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* @see AccountStatusValidator::check_merchant_account()
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*
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* @since 2.11
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*
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* @param string $mode
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*
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* @return bool
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*/
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function ready_to_accept_payments( $mode = '' ) {
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if ( empty( $mode ) ) {
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$mode = edd_is_test_mode() ? API::MODE_SANDBOX : API::MODE_LIVE;
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}
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if ( ! has_rest_api_connection( $mode ) ) {
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return false;
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}
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$validator = new AccountStatusValidator( $mode );
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$validator->check_merchant_account();
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return empty( $validator->errors_for_merchant_account->errors );
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}
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/**
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* Determines whether or not PayPal Standard should be enabled.
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* This returns true if the store owner previously had a PayPal Standard connection but has not yet
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* connected to the new REST API implementation.
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*
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* If PayPal Standard is enabled, then PayPal payments run through the legacy API.
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*
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* @param string $mode If omitted, current site mode is used.
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*
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* @since 2.11
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* @return bool
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*/
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function paypal_standard_enabled( $mode = '' ) {
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if ( empty( $mode ) ) {
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$mode = edd_is_test_mode() ? API::MODE_SANDBOX : API::MODE_LIVE;
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}
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$rest_connection = has_rest_api_connection( $mode );
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$enabled = ! $rest_connection && edd_get_option( 'paypal_email' );
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/**
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* Filters whether or not PayPal Standard is enabled.
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*
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* @since 2.11
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*
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* @param bool $enabled
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*/
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return apply_filters( 'edd_paypal_standard_enabled', $enabled );
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}
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/**
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* Returns the partner merchant ID for a given mode.
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*
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* @param string $mode If omitted, current site mode is used.
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*
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* @since 2.11
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* @return string
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*/
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function get_partner_merchant_id( $mode = '' ) {
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if ( empty( $mode ) ) {
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$mode = edd_is_test_mode() ? API::MODE_SANDBOX : API::MODE_LIVE;
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}
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if ( API::MODE_LIVE === $mode ) {
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return EDD_PAYPAL_MERCHANT_ID;
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} else {
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return EDD_PAYPAL_SANDBOX_MERCHANT_ID;
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}
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}
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/**
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* Returns the styles used for the PayPal buttons.
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*
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* @return array
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*/
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function get_button_styles() {
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$styles = array(
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'layout' => 'vertical',
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'size' => 'responsive',
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'shape' => 'rect',
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'color' => 'gold',
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'label' => 'paypal'
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);
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if ( ! edd_is_checkout() ) {
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$styles['layout'] = 'horizontal';
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$styles['label'] = 'buynow';
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}
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/**
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* Filters the button styles.
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*
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* @since 2.11
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*/
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return apply_filters( 'edd_paypal_smart_button_style', $styles );
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}
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/**
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* Gets the PayPal purchase units without the individual item breakdown.
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*
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* @since 2.11.2
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*
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* @param int $payment_id The payment/order ID.
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* @param array $purchase_data The array of purchase data.
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* @param array $payment_args The array created to insert the payment into the database.
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*
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* @return array
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*/
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function get_order_purchase_units_without_breakdown( $payment_id, $purchase_data, $payment_args ) {
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$order_amount = array(
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'currency_code' => edd_get_currency(),
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'value' => (string) edd_sanitize_amount( $purchase_data['price'] ),
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);
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if ( (float) $purchase_data['tax'] > 0 ) {
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$order_amount['breakdown'] = array(
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'item_total' => array(
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'currency_code' => edd_get_currency(),
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'value' => (string) edd_sanitize_amount( $purchase_data['price'] - $purchase_data['tax'] )
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),
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'tax_total' => array(
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'currency_code' => edd_get_currency(),
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'value' => (string) edd_sanitize_amount( $purchase_data['tax'] ),
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)
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);
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}
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return array(
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'reference_id' => $payment_args['purchase_key'],
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'amount' => $order_amount,
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'custom_id' => $payment_id
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);
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}
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/**
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* Gets the PayPal purchase units. The order breakdown includes the order items, tax, and discount.
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*
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* @since 2.11.2
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* @param int $payment_id The payment/order ID.
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* @param array $purchase_data The array of purchase data.
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* @param array $payment_args The array created to insert the payment into the database.
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* @return array
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*/
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function get_order_purchase_units( $payment_id, $purchase_data, $payment_args ) {
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$currency = edd_get_currency();
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$order_subtotal = $purchase_data['subtotal'];
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$items = get_order_items( $purchase_data );
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// Adjust the order subtotal if any items are discounted.
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foreach ( $items as &$item ) {
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// A discount can be negative, so cast it to an absolute value for comparison.
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if ( (float) abs( $item['discount'] ) > 0 ) {
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$order_subtotal -= $item['discount'];
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}
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// The discount amount is not passed to PayPal as part of the $item.
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unset( $item['discount'] );
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}
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$discount = 0;
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// Fees which are not item specific need to be added to the PayPal data as order items.
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if ( ! empty( $purchase_data['fees'] ) ) {
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foreach ( $purchase_data['fees'] as $fee ) {
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if ( ! empty( $fee['download_id'] ) ) {
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continue;
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}
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// Positive fees.
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if ( floatval( $fee['amount'] ) > 0 ) {
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$items[] = array(
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'name' => stripslashes_deep( html_entity_decode( wp_strip_all_tags( $fee['label'] ), ENT_COMPAT, 'UTF-8' ) ),
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'unit_amount' => array(
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'currency_code' => $currency,
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'value' => (string) edd_sanitize_amount( $fee['amount'] ),
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),
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'quantity' => 1,
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);
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$order_subtotal += abs( $fee['amount'] );
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} else {
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// This is a negative fee (discount) not assigned to a specific Download
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$discount += abs( $fee['amount'] );
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}
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}
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}
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$order_amount = array(
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'currency_code' => $currency,
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'value' => (string) edd_sanitize_amount( $purchase_data['price'] ),
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'breakdown' => array(
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'item_total' => array(
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'currency_code' => $currency,
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'value' => (string) edd_sanitize_amount( $order_subtotal ),
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),
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),
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);
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$tax = (float) $purchase_data['tax'] > 0 ? $purchase_data['tax'] : 0;
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if ( $tax > 0 ) {
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$order_amount['breakdown']['tax_total'] = array(
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'currency_code' => $currency,
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'value' => (string) edd_sanitize_amount( $tax ),
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);
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}
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// This is only added by negative global fees.
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if ( $discount > 0 ) {
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$order_amount['breakdown']['discount'] = array(
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'currency_code' => $currency,
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'value' => (string) edd_sanitize_amount( $discount ),
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);
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}
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return array(
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wp_parse_args( array(
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'amount' => $order_amount,
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'items' => $items
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), get_order_purchase_units_without_breakdown( $payment_id, $purchase_data, $payment_args ) )
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);
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}
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/**
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* Gets an array of order items, formatted for PayPal, from the $purchase_data.
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*
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* @since 2.11.2
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* @param array $purchase_data
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* @return array
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*/
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function get_order_items( $purchase_data ) {
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// Create an array of items for the order.
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$items = array();
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if ( ! is_array( $purchase_data['cart_details'] ) || empty( $purchase_data['cart_details'] ) ) {
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return $items;
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}
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$i = 0;
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foreach ( $purchase_data['cart_details'] as $item ) {
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$item_amount = ( $item['subtotal'] / $item['quantity'] ) - ( $item['discount'] / $item['quantity'] );
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if ( $item_amount <= 0 ) {
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$item_amount = 0;
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}
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$substr_func = function_exists( 'mb_substr' ) ? 'mb_substr' : 'substr';
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$name = $substr_func( edd_get_cart_item_name( $item ), 0, 127 );
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$items[ $i ] = array(
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'name' => stripslashes_deep( html_entity_decode( $name, ENT_COMPAT, 'UTF-8' ) ),
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'quantity' => $item['quantity'],
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'unit_amount' => array(
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'currency_code' => edd_get_currency(),
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'value' => (string) edd_sanitize_amount( $item_amount ),
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),
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'discount' => $item['discount'], // This is unset later and never sent to PayPal.
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);
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if ( edd_use_skus() ) {
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$sku = edd_get_download_sku( $item['id'] );
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if ( ! empty( $sku ) && '-' !== $sku ) {
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$items[ $i ]['sku'] = $sku;
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}
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}
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$i++;
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}
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return $items;
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}
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/**
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* Attempts to detect if there's an item total mismatch. This means the individual item breakdowns don't
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* add up to our proposed totals.
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*
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* @link https://github.com/easydigitaldownloads/easy-digital-downloads/pull/8835#issuecomment-921759101
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* @internal Not intended for public use.
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*
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* @since 2.11.2
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*
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* @param object $response
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*
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* @return bool
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*/
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function _is_item_total_mismatch( $response ) {
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if ( ! isset( $response->details ) || ! is_array( $response->details ) ) {
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return false;
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}
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foreach( $response->details as $detail ) {
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if ( ! empty( $detail->issue ) && 'ITEM_TOTAL_MISMATCH' === strtoupper( $detail->issue ) ) {
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return true;
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}
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}
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return false;
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}
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