使用 PHP 从 Apple 增强推送通知中读取错误

Posted 2023-02-24

【中文标题】使用 PHP 从 Apple 增强推送通知中读取错误

【英文标题】：Reading error from Apple enhanced push notification with PHP

【发布时间】：2011-07-12 14:34:48

【问题描述】：

我正在尝试触发错误，以便为 APNS 构建错误日志记录。因此我向服务器发送了一个太大的有效负载。但我没有错误。

代码：

连接：

$streamContext = stream_context_create();
stream_context_set_option($streamContext, 'ssl', 'local_cert', $this->_sslPem);
stream_context_set_option($streamContext, 'ssl', 'passphrase', "");

$this->_apnsConnection = stream_socket_client("ssl://" . Config::$apns['host'] . ":" . Config::$apns['port'], $error, $errorString, $timeout, STREAM_CLIENT_CONNECT, $streamContext);

if ($this->_apnsConnection) 
    stream_set_blocking($this->_apnsConnection, 0);

发送通知：

$this->_log("Sending notification to device token '$deviceToken'");

$identifiers = array();
for ($i = 0; $i < 4; $i++) 
    $identifiers[$i] = rand(1, 100);


$apnsMessage = chr(1) . chr($identifiers[0]) . chr($identifiers[1]) . chr($identifiers[2]) . chr($identifiers[3]) . pack('N', time() + 3600) 
    . chr(0) . chr(32) . pack('H*', str_replace(' ', '', $deviceToken)) . chr(0) . chr(strlen($message)) . $message;
$bytes = fwrite($this->_apnsConnection, $apnsMessage);

$this->_log("bytes written: $bytes");

$this->_log("Fetching response");
$response = fread($this->_apnsConnection, 6);

$this->_log("Strlen: " . strlen($response));

if ($response === false || strlen($response) != 6) 

    $this->_log("No response...");
 else 

    $responseArray = unpack('Ccommand/CstatusCode/Nidentifier', $response);
    $this->_log("Response!");
    $this->_log($responseArray);

输出：

2011-07-12 16:25:55: Sending notification to device token 'XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX'
2011-07-12 16:25:55: bytes written: 438
2011-07-12 16:25:55: Fetching response
2011-07-12 16:25:55: Strlen: 0
2011-07-12 16:25:55: No response...

【参考方案1】：

我有办法解决这个问题。

解决方案：

$read = array($this->_apnsConnection);
$null = null;
$changedStreams = stream_select($read, $null, $null, 0, 1000000);

if ($changedStreams === false)     

    $this->_log("Error: Unabled to wait for a stream availability");
 elseif ($changedStreams > 0) 

    $responseBinary = fread($this->_apnsConnection, 6);
    if ($responseBinary !== false || strlen($responseBinary) == 6) 

        $response = unpack('Ccommand/Cstatus_code/Nidentifier', $responseBinary);
        $this->_log($response);
    

【讨论】：

因为stream_set_blocking($this->_apnsConnection, 0); fread 将在错误有机会发送之前立即返回，请阅读***.com/questions/4034926/…