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<?php |
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namespace JWage\APNS; |
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use ErrorException; |
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class SocketClient |
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{ |
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const PAYLOAD_MAX_BYTES = 256; |
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/** |
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* @var \JWage\APNS\Certificate |
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*/ |
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private $certificate; |
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/** |
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* @var string |
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*/ |
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private $host; |
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/** |
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* @var int |
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*/ |
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private $port; |
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/** |
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* @var Resource |
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*/ |
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private $apnsResource; |
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/** |
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* @var integer |
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*/ |
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private $error; |
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/** |
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* @var string |
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*/ |
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private $errorString; |
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/** |
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* Construct. |
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* |
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* @param \JWage\APNS\Certificate $certificate |
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* @param string $host |
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* @param string $port |
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*/ |
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public function __construct(Certificate $certificate, $host, $port) |
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{ |
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$this->certificate = $certificate; |
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$this->host = $host; |
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$this->port = $port; |
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} |
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public function __destruct() |
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{ |
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if (is_resource($this->apnsResource)) { |
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fclose($this->apnsResource); |
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} |
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} |
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/** |
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* Writes a binary message to apns. |
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* |
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* @param string $binaryMessage |
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* @return integer Returns the number of bytes written, or FALSE on error. |
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*/ |
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public function write($binaryMessage) |
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{ |
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if (strlen($binaryMessage) > self::PAYLOAD_MAX_BYTES) { |
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throw new \InvalidArgumentException( |
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sprintf('The maximum size allowed for a notification payload is %s bytes; Apple Push Notification Service refuses any notification that exceeds this limit.', self::PAYLOAD_MAX_BYTES) |
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); |
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} |
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return fwrite($this->getApnsResource(), $binaryMessage); |
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} |
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/** |
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* @return Resource |
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*/ |
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protected function getApnsResource() |
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{ |
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if (!is_resource($this->apnsResource)) { |
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$this->apnsResource = $this->createStreamClient(); |
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} |
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return $this->apnsResource; |
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} |
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/** |
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* @return Resource |
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*/ |
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protected function createStreamContext() |
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{ |
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$streamContext = stream_context_create(); |
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stream_context_set_option($streamContext, 'ssl', 'local_cert', $this->certificate->writeToTmp()); |
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return $streamContext; |
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} |
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/** |
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* @return Resource |
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*/ |
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protected function createStreamClient() |
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{ |
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$address = $this->getSocketAddress(); |
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$client = @stream_socket_client( |
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$address, |
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$this->error, |
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$this->errorString, |
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2, |
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STREAM_CLIENT_CONNECT, |
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$this->createStreamContext() |
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); |
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if (!$client) { |
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throw new ErrorException( |
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sprintf('Failed to create stream socket client to "%s". %s', $address, $this->errorString), $this->error |
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); |
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} |
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return $client; |
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} |
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/** |
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* @return string $socketAddress |
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*/ |
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protected function getSocketAddress() |
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{ |
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return sprintf('ssl://%s:%s', $this->host, $this->port); |
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} |
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} |
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jwage /
php-apns
This check looks for assignments to scalar types that may be of the wrong type.
To ensure the code behaves as expected, it may be a good idea to add an explicit type cast.