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<?php
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namespace Srmklive\PayPal\Traits;
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trait PayPalVerifyIPN
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{
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protected $webhook_id;
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public function setWebHookID(string $webhook_id): \Srmklive\PayPal\Services\PayPal
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{
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$this->webhook_id = $webhook_id;
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return $this;
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}
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/**
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* Verify incoming IPN through a web hook id.
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*
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* @throws \Throwable
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*
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* @return array|\Psr\Http\Message\StreamInterface|string
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*/
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public function verifyIPN(\Illuminate\Http\Request $request)
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{
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$headers = array_change_key_case($request->headers->all(), CASE_UPPER);
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if (!isset($headers['PAYPAL-AUTH-ALGO'][0]) ||
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!isset($headers['PAYPAL-TRANSMISSION-ID'][0]) ||
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!isset($headers['PAYPAL-CERT-URL'][0]) ||
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!isset($headers['PAYPAL-TRANSMISSION-SIG'][0]) ||
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!isset($headers['PAYPAL-TRANSMISSION-TIME'][0]) ||
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!isset($this->webhook_id)
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) {
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\Log::error('Invalid headers or webhook id supplied for paypal webhook');
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return response()->json([
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'status' => 'error',
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'message' => 'Invalid headers or web hook id provided',
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]);
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}
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$params = $request->all();
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$payload = [
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'auth_algo' => $headers['PAYPAL-AUTH-ALGO'][0],
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'cert_url' => $headers['PAYPAL-CERT-URL'][0],
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'transmission_id' => $headers['PAYPAL-TRANSMISSION-ID'][0],
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'transmission_sig' => $headers['PAYPAL-TRANSMISSION-SIG'][0],
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'transmission_time' => $headers['PAYPAL-TRANSMISSION-TIME'][0],
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'webhook_id' => $this->webhook_id,
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'webhook_event' => $params,
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];
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return $this->verifyWebHook($payload);
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}
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}
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