Apple's docs say that:
"If you send a notification and APNs finds the notification malformed or otherwise unintelligible, it returns an error-response packet prior to disconnecting. (If there is no error, APNs doesn’t return anything.) Figure 5-3 depicts the format of the error-response packet."
This leads me to believe that the only reason that APNS would not send something back is if what I sent them was in the correct format. However when I try to fread for their response I get a string of 0 length and when unpacked becomes null, which I assume means nothing has been written back to me.
I the stream was opened by stream_socket_client() and did not return false or throw an exception. I know that my fwrite successfully wrote 154 bytes to that stream as well. Why would there be no response from Apple?
Here is the code for connecting to APNS:
function openConnection() {
$streamContext = stream_context_create();
stream_context_set_option($streamContext, 'ssl', 'local_cert', $this->APNS_CERT);
stream_context_set_option($streamContext, 'ssl', 'passphrase', $this->Password);
$apns = stream_socket_client('ssl://' . $this -> APNS_HOST . ':' . $this -> APNS_PORT, $error, $errorString, 60, STREAM_CLIENT_CONNECT, $streamContext);
return $apns;
}
Then, in the next method after calling openConnection:
//open the connection to use with apple.
$apns = $this->openConnection();
$alert = $message['alert'];
$badge = $message['badge'];
$deviceToken = $message['deviceToken'];
$payload['aps'] = array(
'alert' => $message['alert'],
'badge' => $message['badge'],
'sound' => $message['sound']
);
if ($message['extraPayload'] != null) {
$payload['acme'] = $message['extraPayload'];
}
$encodedString = json_encode($payload);
//create message
$apnsMessage = chr(1) . pack("N", $message['identifier']) . pack("N", $message['expire']) . pack("n", 32) . pack('H*', str_replace(' ', '', $message['deviceToken'])) . pack("n",strlen($encodedString)) . $encodedString;
$write = fwrite($apns, $apnsMessage);
echo $write;
//the echo was just to see if it wrote.
if (!$apns) {
socket_close($apns);
fclose($apns);
echo "connection to APNS was lost.";
}
//look for changes. $null=null because some bug doesn't just let you pass null.
$null = null;
$changedStreams = stream_select($streamArray, $null, $null, 0, 1000000);
//check if it is actually false
if ($changedStreams === false) {
//close stream when done.
socket_close($apns);
fclose($apns);
echo "No response from APNs";
} elseif ($changedStreams > 0) {
//then check if what they sent back is an error and grab the error packet
$responseBinary = fread($apns, 6);
var_dump($responseBinary);
//check that it's the right thing
if ($responseBinary != false || strlen($responseBinary) == 6) {
//convert it from it's binary stream state and print.
$response = unpack('Ccommand/Cstatus_code/Nidentifier', $responseBinary);
var_dump($response);
//close stream when done.
socket_close($apns);
fclose($apns);
}
} else {
echo "Apple failed to respond, message was not sent.";
}
The var_dump at the end is NULL.
Edit:
Turns out it was an error with conflicting credentials. It was solved by creating a new pem file.
