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<?php
namespace WPForms\Integrations\Square;
use WPForms\Vendor\Square\Environment;
use WPForms\Helpers\Crypto;
/**
* Connection class.
*
* @since 1.9.5
*/
class Connection {
/**
* Valid connection status.
*
* @since 1.9.5
*/
const STATUS_VALID = 'valid';
/**
* Invalid connection status.
*
* @since 1.9.5
*/
const STATUS_INVALID = 'invalid';
/**
* Determine if a connection for production mode.
*
* @since 1.9.5
*
* @var bool
*/
private $live_mode;
/**
* Access token.
*
* @since 1.9.5
*
* @var string
*/
private $access_token;
/**
* Refresh token.
*
* @since 1.9.5
*
* @var string
*/
private $refresh_token;
/**
* Square-issued ID of an application.
*
* @since 1.9.5
*
* @var string
*/
private $client_id;
/**
* Square-issued ID of the merchant.
*
* @since 1.9.5
*
* @var string
*/
private $merchant_id;
/**
* Currency associated with a merchant account.
*
* @since 1.9.5
*
* @var string
*/
private $currency;
/**
* Connection status.
*
* @since 1.9.5
*
* @var string
*/
private $status;
/**
* Date when tokens should be renewed.
*
* @since 1.9.5
*
* @var int
*/
private $renew_at;
/**
* Determine if connection tokens are encrypted.
*
* @since 1.9.5
*
* @var bool
*/
private $encrypted;
/**
* Determine if scopes were updated.
*
* @since 1.9.5
*
* @var int
*/
private $scopes_updated = 0;
/**
* Connection constructor.
*
* @since 1.9.5
*
* @param array $data Connection data.
* @param bool $encrypted Optional. Default true. Use false when connection tokens were not encrypted.
*/
public function __construct( array $data, bool $encrypted = true ) {
$data = (array) $data;
if ( ! empty( $data['access_token'] ) ) {
$this->access_token = $data['access_token'];
}
if ( ! empty( $data['refresh_token'] ) ) {
$this->refresh_token = $data['refresh_token'];
}
if ( ! empty( $data['client_id'] ) ) {
$this->client_id = $data['client_id'];
}
if ( ! empty( $data['merchant_id'] ) ) {
$this->merchant_id = $data['merchant_id'];
}
if ( ! empty( $data['scopes_updated'] ) ) {
$this->scopes_updated = $data['scopes_updated'];
}
$this->set_status( empty( $data['status'] ) ? self::STATUS_VALID : $data['status'] );
$this->currency = empty( $data['currency'] ) ? '' : strtoupper( (string) $data['currency'] );
$this->renew_at = empty( $data['renew_at'] ) ? time() : (int) $data['renew_at'];
$this->live_mode = ! empty( $data['live_mode'] );
$this->encrypted = (bool) $encrypted;
}
/**
* Retrieve a connection instance if it exists.
*
* @since 1.9.5
*
* @param string $mode Square mode.
* @param bool $encrypted Optional. Default true. Use false when connection tokens were not encrypted.
*
* @return Connection|null
*/
public static function get( string $mode = '', bool $encrypted = true ) {
$mode = Helpers::validate_mode( $mode );
$connections = (array) get_option( 'wpforms_square_connections', [] );
if ( empty( $connections[ $mode ] ) ) {
return null;
}
return new self( (array) $connections[ $mode ], $encrypted );
}
/**
* Save connection data into DB.
*
* @since 1.9.5
*/
public function save() {
$connections = (array) get_option( 'wpforms_square_connections', [] );
$connections[ $this->get_mode() ] = $this->get_data();
update_option( 'wpforms_square_connections', $connections );
}
/**
* Delete connection data from DB.
*
* @since 1.9.5
*/
public function delete() {
$connections = (array) get_option( 'wpforms_square_connections', [] );
unset( $connections[ $this->get_mode() ] );
empty( $connections ) ? delete_option( 'wpforms_square_connections' ) : update_option( 'wpforms_square_connections', $connections );
}
/**
* Revoke tokens from DB.
*
* @since 1.9.5
*/
public function revoke_tokens() {
$connections = (array) get_option( 'wpforms_square_connections', [] );
$mode = $this->get_mode();
$connections[ $mode ] = $this->get_data();
$connections[ $mode ]['access_token'] = '';
$connections[ $mode ]['refresh_token'] = '';
update_option( 'wpforms_square_connections', $connections );
}
/**
* Retrieve true if a connection for production mode.
*
* @since 1.9.5
*
* @return bool
*/
public function get_live_mode(): bool {
return $this->live_mode;
}
/**
* Retrieve a connection mode.
*
* @since 1.9.5
*
* @return string
*/
public function get_mode(): string {
return $this->live_mode ? Environment::PRODUCTION : Environment::SANDBOX;
}
/**
* Retrieve an un-encrypted access token.
*
* @since 1.9.5
*
* @return string
*/
public function get_access_token(): string {
return $this->encrypted ? Crypto::decrypt( $this->access_token ) : $this->access_token;
}
/**
* Retrieve an un-encrypted refresh token.
*
* @since 1.9.5
*
* @return string
*/
public function get_refresh_token(): string {
return $this->encrypted ? Crypto::decrypt( $this->refresh_token ) : $this->refresh_token;
}
/**
* Retrieve a client ID.
*
* @since 1.9.5
*
* @return string
*/
public function get_client_id(): string {
return $this->client_id;
}
/**
* Retrieve an ID of the authorized merchant.
*
* @since 1.9.5
*
* @return string
*/
public function get_merchant_id(): string {
return $this->merchant_id;
}
/**
* Retrieve a currency code of the authorized merchant.
*
* @since 1.9.5
*
* @return string
*/
public function get_currency(): string {
return $this->currency;
}
/**
* Set a currency code.
*
* @since 1.9.5
*
* @param string $code Currency code.
*
* @return Connection
*/
public function set_currency( string $code ) {
$this->currency = strtoupper( $code );
return $this;
}
/**
* Retrieve a connection status.
*
* @since 1.9.5
*
* @return string
*/
public function get_status(): string {
return $this->status;
}
/**
* Set a connection status if it valid.
*
* @since 1.9.5
*
* @param string $status The connection status.
*
* @return Connection
*/
public function set_status( string $status ) {
if ( in_array( $status, $this->get_statuses(), true ) ) {
$this->status = $status;
}
return $this;
}
/**
* Retrieve a renewal timestamp.
*
* @since 1.9.5
*
* @return int
*/
public function get_renew_at(): int {
return $this->renew_at;
}
/**
* Set/update a renewal timestamp.
*
* @since 1.9.5
*
* @return Connection
*/
public function set_renew_at() {
// Tokens must automatically renew every 7 days or less.
$this->renew_at = time() + wp_rand( 5, 8 ) * DAY_IN_SECONDS;
return $this;
}
/**
* Retrieve a scopes updated timestamp.
*
* @since 1.9.5
*
* @return int
*/
public function get_scopes_updated(): int {
return $this->scopes_updated;
}
/**
* Set/update a scopes updated timestamp.
*
* @since 1.9.5
*
* @return Connection
*/
public function set_scopes_updated() {
$this->scopes_updated = time();
return $this;
}
/**
* Encrypt tokens, if it needed.
*
* @since 1.9.5
*
* @return Connection
*/
public function encrypt_tokens() {
// Bail if tokens have already encrypted.
if ( $this->encrypted ) {
return $this;
}
// Bail if tokens are not passed.
if ( empty( $this->access_token ) || empty( $this->refresh_token ) ) {
return $this;
}
// Prepare encrypted tokens.
$encrypted_access_token = Crypto::encrypt( $this->access_token );
$encrypted_refresh_token = Crypto::encrypt( $this->refresh_token );
// Bail if encrypted tokens are invalid.
if ( empty( $encrypted_access_token ) || empty( $encrypted_refresh_token ) ) {
return $this;
}
$this->encrypted = true;
$this->access_token = $encrypted_access_token;
$this->refresh_token = $encrypted_refresh_token;
return $this;
}
/**
* Retrieve available statuses.
*
* @since 1.9.5
*
* @return array
*/
private function get_statuses(): array {
return [ self::STATUS_VALID, self::STATUS_INVALID ];
}
/**
* Retrieve a connection in array format, simply like `toArray` method.
*
* @since 1.9.5
*
* @return array
*/
private function get_data(): array {
return [
'live_mode' => $this->live_mode,
'access_token' => $this->access_token,
'refresh_token' => $this->refresh_token,
'client_id' => $this->client_id,
'merchant_id' => $this->merchant_id,
'currency' => $this->currency,
'status' => $this->status,
'renew_at' => $this->renew_at,
'scopes_updated' => $this->scopes_updated,
];
}
/**
* Determine whether connection tokens is encrypted.
*
* @since 1.9.5
*
* @return bool
*/
private function is_encrypted(): bool {
return $this->encrypted;
}
/**
* Determine whether a connection is configured fully.
*
* @since 1.9.5
*
* @return bool
*/
public function is_configured(): bool {
return ! empty( $this->get_access_token() ) && ! empty( $this->get_refresh_token() ) && ! empty( $this->client_id ) && ! empty( $this->merchant_id );
}
/**
* Determine whether a connection is expired.
*
* @since 1.9.5
*
* @return bool
*/
public function is_expired(): bool {
return ( $this->renew_at - time() ) < HOUR_IN_SECONDS;
}
/**
* Determine whether a connection currency is matched with WPForms currency.
*
* @since 1.9.5
*
* @return bool
*/
public function is_currency_matched(): bool {
return $this->currency === strtoupper( wpforms_get_currency() );
}
/**
* Determine whether a connection is valid.
*
* @since 1.9.5
*
* @return bool
*/
public function is_valid(): bool {
return $this->get_status() === self::STATUS_VALID;
}
/**
* Determine whether a connection is ready for save.
*
* @since 1.9.5
*
* @return bool
*/
public function is_saveable(): bool {
return $this->is_configured() && ! $this->is_expired() && $this->is_encrypted();
}
/**
* Determine whether a connection is ready for use.
*
* @since 1.9.5
*
* @return bool
*/
public function is_usable(): bool {
return $this->is_configured() && $this->is_valid() && $this->is_currency_matched();
}
}