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<?php
// phpcs:ignoreFile WPForms.PHP.BackSlash.RemoveBackslash
namespace WPForms\Integrations\Stripe\Api;
use WPForms\Vendor\Stripe\Customer;
use WPForms\Vendor\Stripe\Plan;
use WPForms\Vendor\Stripe\Stripe;
use WPForms\Vendor\Stripe\Subscription;
use WPForms\Integrations\Stripe\Helpers;
/**
* Common methods for every Stripe API implementation.
*
* @since 1.8.2
*/
abstract class Common {
/**
* API configuration.
*
* @since 1.8.2
*
* @var array
*/
protected $config;
/**
* Stripe customer object.
*
* @since 1.8.2
*
* @var Customer
*/
protected $customer;
/**
* Stripe subscription object.
*
* @since 1.8.2
*
* @var Subscription
*/
protected $subscription;
/**
* API error message.
*
* @since 1.8.2
*
* @var string
*/
protected $error;
/**
* API exception.
*
* @since 1.8.2
*
* @var \Exception
*/
protected $exception;
/**
* Get class variable value or its key.
*
* @since 1.8.2
*
* @param string $field Name of the variable to retrieve.
* @param string $key Name of the key to retrieve.
*
* @return mixed
*/
protected function get_var( $field, $key = '' ) {
$var = isset( $this->{$field} ) ? $this->{$field} : null;
if ( ! $key ) {
return $var;
}
if ( is_object( $var ) ) {
return isset( $var->{$key} ) ? $var->{$key} : null;
}
if ( is_array( $var ) ) {
return isset( $var[ $key ] ) ? $var[ $key ] : null;
}
return $var;
}
/**
* Get API configuration array or its key.
*
* @since 1.8.2
*
* @param string $key Name of the key to retrieve.
*
* @return mixed
*/
public function get_config( $key = '' ) {
return $this->get_var( 'config', $key );
}
/**
* Get saved Stripe customer object or its key.
*
* @since 1.8.2
*
* @param string $key Name of the key to retrieve.
*
* @return mixed
*/
public function get_customer( $key = '' ) {
return $this->get_var( 'customer', $key );
}
/**
* Get saved Stripe subscription object or its key.
*
* @since 1.8.2
*
* @param string $key Name of the key to retrieve.
*
* @return mixed
*/
public function get_subscription( $key = '' ) {
return $this->get_var( 'subscription', $key );
}
/**
* Get API error message.
*
* @since 1.8.2
*
* @return string
*/
public function get_error() {
return $this->get_var( 'error' );
}
/**
* Get API exception.
*
* @since 1.8.2
*
* @return \Exception
*/
public function get_exception() {
return $this->get_var( 'exception' );
}
/**
* Initial Stripe app configuration.
*
* @since 1.8.2
*/
public function setup_stripe() {
Stripe::setAppInfo(
'WPForms acct_17Xt6qIdtRxnENqV',
WPFORMS_VERSION,
'https://wpforms.com/addons/stripe-addon/',
'pp_partner_Dw7IkUZbIlCrtq'
);
}
/**
* Set a customer object.
* Check if a customer exists in Stripe, if not creates one.
*
* @since 1.8.2
* @since 1.8.6 Added customer name argument and allow empty email.
* @since 1.8.8 Added customer billing address argument.
*
* @param string $email Email to fetch an existing customer.
* @param string $name Customer name.
* @param array $address Customer billing address.
*/
protected function set_customer( string $email = '', string $name = '', array $address = [] ) {
if ( ! $email && ! $name ) {
return;
}
$args = [];
if ( $name ) {
$args['name'] = $name;
}
if ( $address ) {
$args['address'] = $address;
}
// Create a customer with name only if email is empty.
if ( ! $email ) {
try {
$customer = Customer::create( $args, Helpers::get_auth_opts() );
} catch ( \Exception $e ) {
$customer = null;
}
if ( ! isset( $customer->id ) ) {
return;
}
$this->customer = $customer;
return;
}
try {
$customers = Customer::all(
[ 'email' => $email ],
Helpers::get_auth_opts()
);
} catch ( \Exception $e ) {
$customers = null;
}
if ( isset( $customers->data[0]->id ) ) {
$this->customer = $customers->data[0];
if ( ! empty( $name ) && $name !== $this->customer->name ) {
try {
$this->customer = Customer::update(
$this->customer->id,
$args,
Helpers::get_auth_opts()
);
} catch ( \Exception $e ) {
wpforms_log(
'Stripe: Unable to update user name.',
$e->getMessage(),
[
'type' => [ 'payment', 'error' ],
]
);
}
}
return;
}
try {
$args['email'] = $email;
$customer = Customer::create( $args, Helpers::get_auth_opts() );
} catch ( \Exception $e ) {
$customer = null;
}
if ( ! isset( $customer->id ) ) {
return;
}
$this->customer = $customer;
}
/**
* Set an error message from a Stripe API exception.
*
* @since 1.8.2
*
* @param \Exception|\WPForms\Vendor\Stripe\Exception\ApiErrorException $e Stripe API exception to process.
*/
protected function set_error_from_exception( $e ) {
/**
* WPForms set Stripe error from exception.
*
* @since 1.8.2
*
* @param \Exception|\WPForms\Vendor\Stripe\Exception\ApiErrorException $e Stripe API exception to process.
*/
do_action( 'wpformsstripe_api_common_set_error_from_exception', $e ); // phpcs:ignore WPForms.PHP.ValidateHooks.InvalidHookName
if ( is_a( $e, '\WPForms\Vendor\Stripe\Exception\CardException' ) ) {
$body = $e->getJsonBody();
$this->error = $body['error']['message'];
return;
}
$errors = [
'\WPForms\Vendor\Stripe\Exception\RateLimitException' => esc_html__( 'Too many requests made to the API too quickly.', 'wpforms-lite' ),
'\WPForms\Vendor\Stripe\Exception\InvalidRequestException' => esc_html__( 'Invalid parameters were supplied to Stripe API.', 'wpforms-lite' ),
'\WPForms\Vendor\Stripe\Exception\AuthenticationException' => esc_html__( 'Authentication with Stripe API failed.', 'wpforms-lite' ),
'\WPForms\Vendor\Stripe\Exception\ApiConnectionException' => esc_html__( 'Network communication with Stripe failed.', 'wpforms-lite' ),
'\WPForms\Vendor\Stripe\Exception\ApiErrorException' => esc_html__( 'Unable to process Stripe payment.', 'wpforms-lite' ),
'\Exception' => esc_html__( 'Unable to process payment.', 'wpforms-lite' ),
];
foreach ( $errors as $error_type => $error_message ) {
if ( is_a( $e, $error_type ) ) {
$this->error = $error_message;
return;
}
}
}
/**
* Set an exception from a Stripe API exception.
*
* @since 1.8.2
*
* @param \Exception $e Stripe API exception to process.
*/
protected function set_exception( $e ) {
$this->exception = $e;
}
/**
* Handle Stripe API exception.
*
* @since 1.8.2
*
* @param \Exception $e Stripe API exception to process.
*/
protected function handle_exception( $e ) {
$this->set_exception( $e );
$this->set_error_from_exception( $e );
}
/**
* Get data for every subscription period.
*
* @since 1.8.2
*
* @return array
*/
protected function get_subscription_period_data() {
return [
'daily' => [
'name' => 'daily',
'interval' => 'day',
'count' => 1,
'desc' => esc_html__( 'Daily', 'wpforms-lite' ),
],
'weekly' => [
'name' => 'weekly',
'interval' => 'week',
'count' => 1,
'desc' => esc_html__( 'Weekly', 'wpforms-lite' ),
],
'monthly' => [
'name' => 'monthly',
'interval' => 'month',
'count' => 1,
'desc' => esc_html__( 'Monthly', 'wpforms-lite' ),
],
'quarterly' => [
'name' => 'quarterly',
'interval' => 'month',
'count' => 3,
'desc' => esc_html__( 'Quarterly', 'wpforms-lite' ),
],
'semiyearly' => [
'name' => 'semiyearly',
'interval' => 'month',
'count' => 6,
'desc' => esc_html__( 'Semi-Yearly', 'wpforms-lite' ),
],
'yearly' => [
'name' => 'yearly',
'interval' => 'year',
'count' => 1,
'desc' => esc_html__( 'Yearly', 'wpforms-lite' ),
],
];
}
/**
* Create Stripe plan.
*
* @since 1.8.2
*
* @param string $id ID of a plan to create.
* @param array $period Subscription period data.
* @param array $args Additional arguments.
*
* @return Plan|null
*/
protected function create_plan( $id, $period, $args ) {
$name = sprintf(
'%s (%s %s)',
! empty( $args['settings']['name'] ) ? $args['settings']['name'] : $args['form_title'],
$args['amount'],
$period['desc']
);
/**
* Allow to filter Stripe subscription plan name.
*
* @since 1.8.8
*
* @param string $name Plan name.
* @param array $period Subscription period data.
* @param array $args Additional arguments.
*/
$name = (string) apply_filters( 'wpforms_integrations_stripe_api_common_create_plan_name', $name, $period, $args );
$plan_args = [
'amount' => $args['amount'],
'interval' => $period['interval'],
'interval_count' => $period['count'],
'product' => [
'name' => sanitize_text_field( $name ),
],
'nickname' => sanitize_text_field( $name ),
'currency' => strtolower( wpforms_get_currency() ),
'id' => $id,
'metadata' => [
'form_name' => sanitize_text_field( $args['form_title'] ),
'form_id' => $args['form_id'],
],
];
try {
$plan = Plan::create( $plan_args, Helpers::get_auth_opts() );
} catch ( \Exception $e ) {
$plan = null;
}
return $plan;
}
/**
* Get Stripe plan ID.
* Check if a plan exists in Stripe, if not creates one.
*
* @since 1.8.2
*
* @param array $args Arguments needed for getting a valid plan ID.
*
* @return string
*/
protected function get_plan_id( $args ) {
$period_data = $this->get_subscription_period_data();
$period = array_key_exists( $args['settings']['period'], $period_data ) ? $period_data[ $args['settings']['period'] ] : $period_data['yearly'];
if ( ! empty( $args['settings']['name'] ) ) {
$slug = preg_replace( '/[^a-z0-9\-]/', '', strtolower( str_replace( ' ', '-', $args['settings']['name'] ) ) );
} else {
$slug = 'form' . $args['form_id'];
}
$plan_id = sprintf(
'%s_%s_%s',
$slug,
$args['amount'],
$period['name']
);
try {
$plan = Plan::retrieve( $plan_id, Helpers::get_auth_opts() );
} catch ( \Exception $e ) {
$plan = $this->create_plan( $plan_id, $period, $args );
}
return isset( $plan->id ) ? $plan->id : '';
}
}
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