PHP实现APNS推送

<?php /**
* @file apns.php
* @synopsis  apple APNS class
* @author Yee, <rlk002@gmail.com>
* @version 1.0
* @date 2012-09-17 11:27:59
*/
<span id="more-996"></span>
    class APNS
    {
        const ENVIRONMENT_PRODUCTION = 0;
        const ENVIRONMENT_SANDBOX = 1;
        const DEVICE_BINARY_SIZE = 32;
        const CONNECT_RETRY_INTERVAL = 1000000;
        const SOCKET_SELECT_TIMEOUT = 1000000;
        const COMMAND_PUSH = 1;
        const STATUS_CODE_INTERNAL_ERROR = 999;
        const ERROR_RESPONSE_SIZE = 6;
        const ERROR_RESPONSE_COMMAND = 8;
        const PAYLOAD_MAXIMUM_SIZE = 256;
        const APPLE_RESERVED_NAMESPACE = 'aps';
        protected $_environment;
        protected $_providerCertificateFile;
        protected $_rootCertificationAuthorityFile;
        protected $_connectTimeout;
        protected $_connectRetryTimes = 3;
        protected $_connectRetryInterval;
        protected $_socketSelectTimeout;
        protected $_hSocket;
        protected $_deviceTokens = array();
        protected $_text;
        protected $_badge;
        protected $_sound;
        protected $_customProperties;
        protected $_expiryValue = 604800;
        protected $_customIdentifier;
        protected $_autoAdjustLongPayload = true;
        protected $asurls = array('ssl://gateway.push.apple.com:2195','ssl://gateway.sandbox.push.apple.com:2195');
        protected $_errorResponseMessages = array
                            (
                                0   => 'No errors encountered',
                                1 => 'Processing error',
                                2 => 'Missing device token',
                                3 => 'Missing topic',
                                4 => 'Missing payload',
                                5 => 'Invalid token size',
                                6 => 'Invalid topic size',
                                7 => 'Invalid payload size',
                                8 => 'Invalid token',
                                self::STATUS_CODE_INTERNAL_ERROR => 'Internal error'
                            );
        function __construct($environment,$providerCertificateFile)
        {
            if($environment != self::ENVIRONMENT_PRODUCTION && $environment != self::ENVIRONMENT_SANDBOX) 
            {
                throw new Exception(
                    "Invalid environment '{$environment}'"
                );
            }
            $this->_environment = $environment;
            if(!is_readable($providerCertificateFile)) 
            {
                throw new Exception(
                    "Unable to read certificate file '{$providerCertificateFile}'"
                );
            }
            $this->_providerCertificateFile = $providerCertificateFile;
            $this->_connectTimeout = @ini_get("default_socket_timeout");
            $this->_connectRetryInterval = self::CONNECT_RETRY_INTERVAL;
            $this->_socketSelectTimeout = self::SOCKET_SELECT_TIMEOUT;
        }
        public function setRCA($rootCertificationAuthorityFile)
        {
            if(!is_readable($rootCertificationAuthorityFile)) 
            {
                throw new Exception(
                    "Unable to read Certificate Authority file '{$rootCertificationAuthorityFile}'"
                );
            }
            $this->_rootCertificationAuthorityFile = $rootCertificationAuthorityFile;
        }
        public function getRCA()
        {
            return $this->_rootCertificationAuthorityFile;
        }
        protected function _connect()
        {
            $sURL = $this->asurls[$this->_environment];
            $streamContext = stream_context_create(
                array
                    (
                        'ssl' => array
                        (
                            'verify_peer' => isset($this->_rootCertificationAuthorityFile),
                            'cafile' => $this->_rootCertificationAuthorityFile,
                            'local_cert' => $this->_providerCertificateFile
                        )
                    )
                );
            $this->_hSocket = @stream_socket_client($sURL,$nError,$sError,$this->_connectTimeout,STREAM_CLIENT_CONNECT, $streamContext);
            if (!$this->_hSocket) 
            {
                throw new Exception
                (
                    "Unable to connect to '{$sURL}': {$sError} ({$nError})"
                );
            }
            stream_set_blocking($this->_hSocket, 0);
            stream_set_write_buffer($this->_hSocket, 0);
            return true;
        }
        public function connect()
        {
            $bConnected = false;
            $retry = 0;
            while(!$bConnected) 
            {
                try 
                {
                    $bConnected = $this->_connect();
                }catch (Exception $e) 
                {
                    if ($nRetry >= $this->_connectRetryTimes) 
                    {
                        throw $e;
                    }else 
                    {
                        usleep($this->_nConnectRetryInterval);
                    }
                }
                $retry++;
            }
        }
        public function disconnect()
        {
            if (is_resource($this->_hSocket)) 
            {
                return fclose($this->_hSocket);
            }
            return false;
        }
        protected function getBinaryNotification($deviceToken, $payload, $messageID = 0, $Expire = 604800)
        {
            $tokenLength = strlen($deviceToken);
            $payloadLength = strlen($payload);
            $ret  = pack('CNNnH*', self::COMMAND_PUSH, $messageID, $Expire > 0 ? time() + $Expire : 0, self::DEVICE_BINARY_SIZE, $deviceToken);
            $ret .= pack('n', $payloadLength);
            $ret .= $payload;
            return $ret;
        }
        protected function readErrorMessage()
        {
            $errorResponse = @fread($this->_hSocket, self::ERROR_RESPONSE_SIZE);
            if ($errorResponse === false || strlen($errorResponse) != self::ERROR_RESPONSE_SIZE) 
            {
                return;
            }
            $errorResponse = $this->parseErrorMessage($errorResponse);
            if (!is_array($errorResponse) || empty($errorResponse)) 
            {
                return;
            }
            if (!isset($errorResponse['command'], $errorResponse['statusCode'], $errorResponse['identifier'])) 
            {
                return;
            }
            if ($errorResponse['command'] != self::ERROR_RESPONSE_COMMAND) 
            {
                return;
            }
            $errorResponse['timeline'] = time();
            $errorResponse['statusMessage'] = 'None (unknown)';
            if (isset($this->_aErrorResponseMessages[$errorResponse['statusCode']])) 
            {
                $errorResponse['statusMessage'] = $this->_errorResponseMessages[$errorResponse['statusCode']];
            }
            return $errorResponse;
        }
        protected function parseErrorMessage($errorMessage)
        {
            return unpack('Ccommand/CstatusCode/Nidentifier', $errorMessage);
        }
        public function send()
        {
            if (!$this->_hSocket) 
            {
                throw new Exception
                (
                    'Not connected to Push Notification Service'
                );
            }
            $sendCount = $this->getDTNumber();
            $messagePayload = $this->getPayload();
            foreach($this->_deviceTokens AS $key => $value)
            {
                $apnsMessage = $this->getBinaryNotification($value, $messagePayload, $messageID = 0, $Expire = 604800);
                $nLen = strlen($apnsMessage);
                $aErrorMessage = null;
                if ($nLen !== ($nWritten = (int)@fwrite($this->_hSocket, $apnsMessage))) 
                {
                    $aErrorMessage = array
                    (
                        'identifier' => $key,
                        'statusCode' => self::STATUS_CODE_INTERNAL_ERROR,
                        'statusMessage' => sprintf('%s (%d bytes written instead of %d bytes)',$this->_errorResponseMessages[self::STATUS_CODE_INTERNAL_ERROR], $nWritten, $nLen)
                    );
                }
            }
        }
        public function addDT($deviceToken)
        {
            if (!preg_match('~^[a-f0-9]{64}$~i', $deviceToken)) 
            {
                throw new Exception
                (
                    "Invalid device token '{$deviceToken}'"
                );
            }
            $this->_deviceTokens[] = $deviceToken;
        }       
        public function getDTNumber()
        {
            return count($this->_deviceTokens);
        }
        public function setText($text)
        {
            $this->_text = $text;
        }
        public function getText()
        {
            return $this->_text;
        }
        public function setBadge($badge)
        {
            if (!is_int($badge)) 
            {
                throw new Exception
                (
                    "Invalid badge number '{$badge}'"
                );
            }
            $this->_badge = $badge;
        }
        public function getBadge()
        {
            return $this->_badge;
        }
        public function setSound($sound = 'default')
        {
            $this->_sound = $sound;
        }
        public function getSound()
        {
            return $this->_sound;
        }
        public function setCP($name, $value)
        {
            if ($name == self::APPLE_RESERVED_NAMESPACE) 
            {
                throw new Exception
                (
                    "Property name '" . self::APPLE_RESERVED_NAMESPACE . "' can not be used for custom property."
                );
            }
            $this->_customProperties[trim($name)] = $value;
        }
        protected function _getPayload()
        {
            $aPayload[self::APPLE_RESERVED_NAMESPACE] = array();
            if (isset($this->_text)) 
            {
                $aPayload[self::APPLE_RESERVED_NAMESPACE]['alert'] = (string)$this->_text;
            }
            if (isset($this->_badge) && $this->_badge > 0) 
            {
                $aPayload[self::APPLE_RESERVED_NAMESPACE]['badge'] = (int)$this->_badge;
            }
            if (isset($this->_sound)) 
            {
                $aPayload[self::APPLE_RESERVED_NAMESPACE]['sound'] = (string)$this->_sound;
            }
            if (is_array($this->_customProperties)) 
            {
                foreach($this->_customProperties as $propertyName => $propertyValue) 
                {
                    $aPayload[$propertyName] = $propertyValue;
                }
            }
            return $aPayload;
        }
        public function setExpiry($expiryValue)
        {
            if (!is_int($expiryValue)) 
            {
                throw new Exception
                (
                    "Invalid seconds number '{$expiryValue}'"
                );
            }
            $this->_expiryValue = $expiryValue;
        }
        public function getExpiry()
        {
            return $this->_expiryValue;
        }
        public function setCustomIdentifier($customIdentifier)
        {
            $this->_customIdentifier = $customIdentifier;
        }
        public function getCustomIdentifier()
        {
            return $this->_customIdentifier;
        }       
        public function getPayload()
        {
            $sJSONPayload = str_replace
            (
                '"' . self::APPLE_RESERVED_NAMESPACE . '":[]',
                '"' . self::APPLE_RESERVED_NAMESPACE . '":{}',
                json_encode($this->_getPayload())
            );
            $nJSONPayloadLen = strlen($sJSONPayload);
            if ($nJSONPayloadLen > self::PAYLOAD_MAXIMUM_SIZE)
            {
                if ($this->_autoAdjustLongPayload) 
                {
                    $maxTextLen = $textLen = strlen($this->_text) - ($nJSONPayloadLen - self::PAYLOAD_MAXIMUM_SIZE);
                    if ($nMaxTextLen > 0)
                    {
                        while (strlen($this->_text = mb_substr($this->_text, 0, --$textLen, 'UTF-8')) > $maxTextLen);
                        return $this->getPayload();
                    }else
                    {
                        throw new Exception
                        (
                            "JSON Payload is too long: {$nJSONPayloadLen} bytes. Maximum size is " .
                            self::PAYLOAD_MAXIMUM_SIZE . " bytes. The message text can not be auto-adjusted."
                        );
                    }
                }else
                {
                    throw new Exception
                    (
                        "JSON Payload is too long: {$nJSONPayloadLen} bytes. Maximum size is " .
                        self::PAYLOAD_MAXIMUM_SIZE . " bytes"
                    );
                }
            }
            return $sJSONPayload;
        }   
    }
?>

    include 'apns.php';
    $rootpath = 'entrust_root_certification_authority.pem';  //ROOT证书地址
    $cp = 'production_push_certificates.pem';  //provider证书地址
    $apns = new APNS(0,$cp);
    try
    {
        $apns->setRCA($rootpath);  //设置ROOT证书
        $apns->connect(); //连接
        $apns->addDT('b9d98721b5586b61a00fbfa0d61a033954e1bfb8faaae3dfc5a1382xxxxxx');  //加入deviceToken
        $apns->setText('这是一条测试信息');  //发送内容
        $apns->setBadge(1);  //设置图标数
        $apns->setSound();  //设置声音
        $apns->setExpiry(3600);  //过期时间
        $apns->setCP('fljt',array('type' => '1','url' => 'http://www.google.com.hk'));  //自定义操作
        $apns->send();  //发送
    }catch(Exception $e)
    {
        echo $e;
    }