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Fix: Properly parse trandata from request content before decryption #15

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Fix: Properly parse trandata from request content before decryption #15

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11 changes: 10 additions & 1 deletion src/Services/KnetResponseService.php
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Original file line number Diff line number Diff line change
Expand Up @@ -48,14 +48,23 @@ public function updateTransaction(KnetTransaction $transaction): KnetTransaction
*/
public static function decryptAndParse(Request $request): array
{
$trandata = $request->getContent();
// 1. Get the full request content
$content = $request->getContent();

// 2. Parse the content into an array
parse_str($content, $output);

// 3. Extract only the trandata field
$trandata = $output['trandata'] ?? null;

if (! $trandata) {
throw new AccessDeniedHttpException('Invalid Request');
}

// 4. Decrypt only the trandata field
$payload = KPayClient::decryptAES($trandata, config('knet.resource_key'));

// 5. Parse the decrypted result
parse_str($payload, $payloadArray);

if (! isset($payloadArray['trackid'])) {
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