PHP 技术来查询 APNs 反馈服务器 [英] PHP technique to query the APNs Feedback Server

问题描述

就您查询的方式而言，有人可以澄清 APNs(Apple 推送通知)想要什么吗?

Can someone clarify what the APNs (Apple Push Notification) wants as far as how you query it?

文档说它在建立连接后立即开始发送.这是否意味着我不会对其执行 fread() ?

The docs say it starts sending as soon as the connection is made. Does this mean that I don't do an fread() on it?

这是我当前尝试阅读的代码.我没有将 fread() 放入循环中，因为我不知道什么响应表示没有更多的记录可读取"，而且我不想在我的服务器上出现无限循环.

Here's my current code to try and read it. I did NOT put the fread() in a loop as I do not know what response indicates "no more records to read" and I didn't want an infinite loop on my server.

<?php
$apnsCert = 'HOHRO-prod.pem';

$streamContext = stream_context_create();
stream_context_set_option($streamContext, 'ssl', 'local_cert', $apnsCert);
stream_context_set_option($streamContext, 'ssl', 'verify_peer', false);

$apns = stream_socket_client('ssl://feedback.push.apple.com:2196', $error, $errorString, 60, STREAM_CLIENT_CONNECT, $streamContext);

echo 'error=' . $error;
echo 'errorString=' . $errorString;


$result = fread($apns, 38);
echo 'result=' . $result;


fclose($apns);
?>

到目前为止，我得到的只是一个空回复.没有错误，所以它正在连接.

So far all I am getting is a null reply. There are no errors so it is connecting.

我不知道 null 回复是否意味着没有数据，或者我的 fread() 是错误的做法.

I don't know if the null reply means no data is there, or my fread() is the wrong way to do it.

谢谢

推荐答案

当我第一次尝试连接时，有一个大问题让我很困惑:APNS 反馈服务器只返回自上次过期"以来的设备令牌反馈请求.这意味着大多数情况下您会得到一个 NULL 响应，除非您已经在与大量的应用用户打交道.

Here's a big gotcha which confused me when I first tried connecting: the APNS feedback servers only return the device tokens that have "expired" since your last feedback request. Which means most of the time you'll get a NULL response unless you're already dealing with a high volume of users of your app.

因此，请确保将过期的设备令牌存储到磁盘或数据库中，因为在您的反馈查询之后，它们将永远消失.至少可以说，这让测试变得很痛苦！

So make sure you store the expired device tokens to disk or db, because after your feedback query they're gone for good. This makes testing a pain to say the least!

这是一个从 APNS 反馈服务器获取设备令牌的完整函数(非常感谢上面的答案帮助我把它们放在一起):

Here's a complete function to fetch the device tokens from the APNS feedback servers (many thanks to the answers above for helping me put it all together):

function send_feedback_request() {
    //connect to the APNS feedback servers
    //make sure you're using the right dev/production server & cert combo!
    $stream_context = stream_context_create();
    stream_context_set_option($stream_context, 'ssl', 'local_cert', '/path/to/my/cert.pem');
    $apns = stream_socket_client('ssl://feedback.push.apple.com:2196', $errcode, $errstr, 60, STREAM_CLIENT_CONNECT, $stream_context);
    if(!$apns) {
        echo "ERROR $errcode: $errstr\n";
        return;
    }


    $feedback_tokens = array();
    //and read the data on the connection:
    while(!feof($apns)) {
        $data = fread($apns, 38);
        if(strlen($data)) {
            $feedback_tokens[] = unpack("N1timestamp/n1length/H*devtoken", $data);
        }
    }
    fclose($apns);
    return $feedback_tokens;
}

如果一切顺利，该函数的返回值将如下所示(通过 print_r()):

If all is well, the return values from this function will look something like this (via print_r()):

Array
(
    Array
    (
        [timestamp] => 1266604759
        [length] => 32
        [devtoken] => abc1234..............etcetc
    ),
    Array
    (
        [timestamp] => 1266604922
        [length] => 32
        [devtoken] => def56789..............etcetc
    ),
)

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