php - Googleシリアル通知（IPN）でのPHPの使用

Question

これをPHPで機能させる方法を見つけようとしています。必要なデータを取得するためのコードが20行未満のペイパル用のIPNが機能しています。Googleドキュメントを読んでみましたが、具体的すぎるか、一般的すぎます。いくつかのサンプルコードがありますが、これは5つのファイルに約1300行あり、理解できません。完了したトランザクションからほんの一握りの変数が必要ですが、それ以上は必要ありません。数行のコードでこれを行うことは可能ですか（つまり、1300行分の「インクルード」ファイルがないことを意味します）、それともGoogle Checkoutのプロセスは本当にかさばりますか？

Answer 1

これが私が始めたコードです。まだ終わっていません。それは完璧に動作します。あなたがする必要があるのは、Googleが送り返すデータを取得し、このコードがファイルに書き込み、それを使用して販売テーブルに挿入し、顧客に受け取った支払いの通知を送信することなどです。秘訣は、Googleが投稿を送信するときに、Authorizationヘッダーを使用してコールバックする必要があります。そうしないと、それが考慮されません。

function post2google($url, $timeout = 30, $port = 80, $buffer = 128) {
  $mid = "123456789";
  $mky = "qwertyuiop";
  $aut = base64_encode($mid . ":" . $mky);

  $arr = parse_url($url);

  $ssl = "";
  if($arr['scheme'] == "https") $ssl = "ssl://";

  $post  = "POST " . $arr['path'] . " HTTP/1.1\r\n";
  $post .= "Host: " . $arr['host'] . "\r\n";

  $post .= "Authorization: Basic " . $aut . "\r\n";
  $post .= "Content-Type: application/xml; charset=UTF-8\r\n";
  $post .= "Accept: application/xml; charset=UTF-8\r\n";

  $post .= "Content-Length: " . strlen($arr['query']) . "\r\n";
  $post .= "Connection: Close\r\n";
  $post .= "\r\n";
  $post .= $arr['query'];

  $f = fsockopen($ssl . $arr['host'], $port, $errno, $errstr, $timeout);

  if(!$f)
    return $errstr . " (" . $errno . ")";

  else{
    fputs($f, $post);
    while(!feof($f)) { $echo .= @fgets($f, $buffer); }
    fclose($f);

    return $echo;
  }
}
$re =  post2google("https://checkout.google.com/api/checkout/v2/reportsForm/Merchant/123456789?_type=notification-history-request&serial-number=" . $_REQUEST['serial-number'], 3, 443);

$re = str_replace("&", "\n", $re) . "\n\n--\n\n";

file_put_contents("gpn.txt", $re, FILE_APPEND);

Answer 2

動作するようになりました。これが、HTTP通知/応答の処理に使用できるコードのスケルトンです。これは明らかに上記のtntuの例から導き出されたものです。（ありがとう！）

//incoming data is in the var $_POST['serial-number']
//"send" the response to acknowledge the serial number that google talks about all over but never explains how
echo "_type=notification-acknowledgment&serial-number=".$_POST['serial-number'];

//now we need to call google's server and ask for this transaction's data:
//you'll need to change your merchant id in the $url and $mid vars, and your merchant key in the $mky var
$url = "https://sandbox.google.com/checkout/api/checkout/v2/reportsForm/Merchant/1234567890?_type=notification-history-request&serial-number=" . $_REQUEST['serial-number'];
$mid = "1234567890"; 
$mky = "ABCDEFGHIJK";
$aut = base64_encode($mid . ":" . $mky);

$arr = parse_url($url);
$ssl = "";
if($arr['scheme'] == "https") $ssl = "ssl://";

$post  = "POST " . $arr['path'] . " HTTP/1.1\r\n";
$post .= "Host: " . $arr['host'] . "\r\n";
$post .= "Authorization: Basic " . $aut . "\r\n";
$post .= "Content-Type: application/xml; charset=UTF-8\r\n";
$post .= "Accept: application/xml; charset=UTF-8\r\n";
$post .= "Content-Length: " . strlen($arr['query']) . "\r\n";
$post .= "Connection: Close\r\n";
$post .= "\r\n";
$post .= $arr['query'];

//now we actually make the request by opening a socket and calling Google's server
$f = fsockopen($ssl . $arr['host'], 443, $errno, $errstr, 30);

if(!$f){
    //something failed in the opening of the socket, we didn't contact google at all, you can do whatever you want here such as emailing yourself about it and what you were trying to send, etc
    @mail("troubleshooting@yourdomain.com","Google IPN - HTTP ERROR ",$errstr . " (" . $errno . ")\n\n\n".$arr['query']);
}else{
    //the socket was opened, send the request for the order data: 
    fputs($f, $post); // you're sending
    while(!feof($f)) { $response .= @fgets($f, 128); } //google replies and you store it in $response
    fclose($f); //close the socket, we're done talking to google's server

    $spl=strpos($response,"_type="); //parse the type because parse_str won't catch it
    if ($spl!==false){
        $spl2=strpos($response,"&",$spl);
        $ordertype=substr($response,($spl+6),($spl2-$spl)-6);
    }//$ordertype will tell you which type of notification is being sent, new-order-notification, risk-information-notification, etc
    $subresponse=substr($response,$spl2+1); //put the rest of it into an array for easy access
    parse_str($subresponse,$order);//you can now access google's response in $order[] vars
    //IMPORTANT: dots in Google's field names are replaced by underscore, for example:
    // $order['google-order-number'] and $order['buyer-billing-address_address1'] NOT $order['buyer-billing-address.address1']
    //order field names are shown here: 
    //https://developers.google.com/checkout/developer/Google_Checkout_HTML_API_Notification_API#order_summary

     //this is the point where you will want to use the data contained in $order[] to create a new record in your database or whatever.
    //NOTE: be sure to store and check for duplicates using the google-order-number because you will get multiple notifications from google regarding the same order

    if (strtoupper($order['order-summary_financial-order-state']) == "CHARGEABLE"){
        //CHARGEABLE is what indicates it is safe to create a login for the user (if you are delivering digital goods) 
        // insert into db, and/or email user with key or download url
    }
}