50 lines
1.6 KiB
PHP
50 lines
1.6 KiB
PHP
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<?php
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namespace FedaPay;
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/**
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* Class Webhook
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*
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* @property int $id
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* @property string $public_key
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* @property string $private_key
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* @property string $created_at
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* @property string $updated_at
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*
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* @package FedaPay
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*/
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abstract class Webhook
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{
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const DEFAULT_TOLERANCE = 300;
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/**
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* Returns an Event instance using the provided JSON payload. Throws a
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* \UnexpectedValueException if the payload is not valid JSON, and a
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* \FedaPay\SignatureVerificationException if the signature verification
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* fails for any reason.
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*
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* @param string $payload the payload sent by FedaPay.
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* @param string $sigHeader the contents of the signature header sent by
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* FedaPay.
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* @param string $secret secret used to generate the signature.
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* @param int $tolerance maximum difference allowed between the header's
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* timestamp and the current time
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* @return \FedaPay\Event the Event instance
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* @throws \UnexpectedValueException if the payload is not valid JSON,
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* @throws \FedaPay\Error\SignatureVerification if the verification fails.
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*/
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public static function constructEvent($payload, $sigHeader, $secret, $tolerance = self::DEFAULT_TOLERANCE)
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{
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WebhookSignature::verifyHeader($payload, $sigHeader, $secret, $tolerance);
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$data = json_decode($payload, true);
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$jsonError = json_last_error();
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if ($data === null && $jsonError !== JSON_ERROR_NONE) {
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$msg = "Invalid payload: $payload "
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. "(json_last_error() was $jsonError)";
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throw new \UnexpectedValueException($msg);
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}
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return new Event($data);
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}
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}
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