Convert php curl to GAE urlfetch for iTunes InApp verifyReceipt

问题

Can someone help to convert this PHP Curl to UrlFetch ? This is used for Apple iTunes verifyReceipt

if (getiTunesProductionLevel($app_id)=="sandbox" || $sandbox_override == TRUE) {
    $endpoint = 'https://sandbox.itunes.apple.com/verifyReceipt';
}
else {
    $endpoint = 'https://buy.itunes.apple.com/verifyReceipt';
}

$postData = json_encode(array(
    'receipt-data' => $receipt,
    'password' => $sharedSecret));

$ch = curl_init($endpoint);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
$response = curl_exec($ch);
$errno = curl_errno($ch);
$errmsg = curl_error($ch);
curl_close($ch);

this is as good as I can get. But not good enough.

logMessage(LogType::Info,"XXX URLFetch 0");
    $postData = json_encode(array(
    'receipt-data' => $receipt,
    'password' => $sharedSecret));
$post_data = json_decode($postData);
logMessage(LogType::Info,"XXX URLFetch 1");
$data = http_build_query($post_data);
logMessage(LogType::Info,"XXX URLFetch 2");

$context = [
  'http' => [
    'method' => 'post',
    'header' => "Content-Type: application/x-www-form-urlencoded\r\n",
    'content' => $data
  ]
];

logMessage(LogType::Info,"XXX URLFetch 3");
$context = stream_context_create($context);
logMessage(LogType::Info,"XXX URLFetch 4");
$result = file_get_contents($endpoint, false, $context);
logMessage(LogType::Info,"XXX result:" . $result);
$response = $result;
$errno = 0;
logMessage(LogType::Info,"XXX response:");

It is able to post but returns this response XXX result:{"status":21002}

回答1:

Why do you json_decode $post_data in your urlfetch code but not in curl?

回答2:

I had an error like this, it turned out 'POST' had to be in uppercase when running locally. On .appspot it worked with lowercase 'post' but not locally on my PC.

来源：https://stackoverflow.com/questions/22775207/convert-php-curl-to-gae-urlfetch-for-itunes-inapp-verifyreceipt