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* @return bool

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protected function is_recurring_settings_ok( $settings ) {

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$error = '';

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// Check subscription settings are provided.

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if ( empty( $settings['period'] ) || empty( $settings['email'] ) ) {

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$error = esc_html__( 'Stripe subscription payment stopped, missing form settings.', 'wpforms-lite' );

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}

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// Check for required customer email.

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if ( ! $error && empty( $this->fields[ $settings['email'] ]['value'] ) ) {

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$error = esc_html__( 'Stripe subscription payment stopped, customer email not found.', 'wpforms-lite' );

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}

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// Before proceeding, check if any basic errors were detected.

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if ( $error ) {

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$this->log_error( $error );

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$this->display_error( $error );

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return false;

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}

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return true;

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}

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/**

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* Process subscription API call.

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* @since 1.8.4

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* @param array $args Prepared subscription arguments.

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protected function process_subscription( $args ) {

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$this->subscription_settings = $args['settings'];

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if ( ! Helpers::is_license_ok() && Helpers::is_application_fee_supported() ) {

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$args['application_fee_percent'] = 3;

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}

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$this->api->process_subscription( $args );

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// Set payment processing flag.

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$this->is_payment_processed = true;

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// Update the credit card field value to contain basic details.

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$this->update_credit_card_field_value();

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$this->process_api_error( 'subscription' );

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}

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/**

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* Get base subscription arguments.

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* @since 1.8.4

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* @return array

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protected function get_base_subscription_args() {

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return [

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'form_id' => $this->form_id,

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'form_title' => sanitize_text_field( $this->form_data['settings']['form_title'] ),

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'amount' => $this->amount * Helpers::get_decimals_amount(),

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];

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}

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/**

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* Map WPForms Address field to Stripe format.

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* @since 1.8.8

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* @param array $submitted_data Submitted address data.

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* @param string $field_id Address field ID.

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* @return array

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private function map_address_field( array $submitted_data, string $field_id ): array {

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$line = sanitize_text_field( $submitted_data['address1'] );

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$country = '';

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if ( isset( $submitted_data['address2'] ) ) {

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$line .= ' ' . sanitize_text_field( $submitted_data['address2'] );

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}

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if ( isset( $submitted_data['country'] ) ) {

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$country = sanitize_text_field( $submitted_data['country'] );

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} elseif ( $this->form_data['fields'][ $field_id ]['scheme'] !== 'international' ) {

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$country = 'US';

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}

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return [

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'line1' => $line,

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'state' => isset( $submitted_data['state'] ) ? sanitize_text_field( $submitted_data['state'] ) : '',

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'city' => sanitize_text_field( $submitted_data['city'] ),

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'postal_code' => sanitize_text_field( $submitted_data['postal'] ),

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'country' => $country,

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];

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}

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/**

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* Check the submitted payment data whether it was corrupted.

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* If so, refund a payment / cancel subscription.

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* @since 1.8.8.2

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* @param array $entry Submitted entry data.

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* @return bool

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private function is_submitted_payment_data_corrupted( array $entry ): bool {

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// Bail early if there are no payment intents.

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if ( empty( $entry['payment_intent_id'] ) ) {

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return false;

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}

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// Get stored corrupted payment intents if exist.

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$corrupted_intents = (array) Transient::get( 'corrupted-stripe-intents' );

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// We must prevent a processing if payment intent was identified as corrupted.

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// Also if the transaction ID exists in DB (transaction ID is unique value).

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if ( in_array( $entry['payment_intent_id'], $corrupted_intents, true ) || wpforms()->get( 'payment' )->get_by( 'transaction_id', $entry['payment_intent_id'] ) ) {

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wpforms()->get( 'process' )->errors[ $this->form_id ]['footer'] = esc_html__( 'Secondary form submission was declined.', 'wpforms-lite' );

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return true;

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}

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$intent = $this->api->retrieve_payment_intent(

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$entry['payment_intent_id'],

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[

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'expand' => [ 'invoice.subscription' ],

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]

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);

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// Round to the nearest whole number because $this->amount can contain a number close to,

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// but slightly under it, due to how it is stored in the memory.

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$submitted_amount = round( $this->amount * Helpers::get_decimals_amount() );

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// Prevent form submission if a mismatch of the payment amount is detected.

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if ( ! empty( $intent ) && (int) $submitted_amount !== (int) $intent->amount ) {

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wpforms()->get( 'process' )->errors[ $this->form_id ]['footer'] = esc_html__( 'Irregular activity detected. Your submission has been declined and payment refunded.', 'wpforms-lite' );

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$args = [

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'reason' => 'fraudulent',

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];

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// We can't cancel a payment because it's already paid.

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// So we can perform a refund only.

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$this->api->refund_payment( $entry['payment_intent_id'], $args );

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// Cancel subscription if exists.

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if ( ! empty( $intent->invoice->subscription ) ) {

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$this->api->cancel_subscription( $intent->invoice->subscription->id );

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}

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// This payment indent is identified as corrupted.

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// Store it in order to prevent re-using it (form re-submitting).

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if ( ! in_array( $entry['payment_intent_id'], $corrupted_intents, true ) ) {

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$corrupted_intents[] = $entry['payment_intent_id'];

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Transient::set( 'corrupted-stripe-intents', $corrupted_intents, WEEK_IN_SECONDS );

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}

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return true;

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}

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return false;

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}

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}

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