Apple PUSH Notication Service (APNS) 配置攻略

iOs 3.0以后就支持APNS（ apple push notication Service).下面介绍怎么配置APNS服务。
APNS 分为客户端与服务器端2个部分：
客户端部分：
 1    创建一个App Id 。如果你已经是apple的注册用户（至少是开发者）。首先登录进入Apple developer program portal
 2   创建好App Id 点击 Configure。选择支持APNS，按照步骤选择你的开发证书（csr）。并下载cer文件双击安装（ Apple development iOS push notication Services:xxxxxxxxx)
3    此时 。Mac 上的 keychain 里面 Login 已经包含了想要的证书和密钥，按Control 将 证书和密钥export出。保存为cert.p12 和 key.p12 文件(导出过程需要输入密码。请务必保留这个密码）
4    打开终端。 cd 到保护cert.p12 key.p12的文件夹。将cert.p12 he key.p12转化为pem文件，并进行合并
 openssl pkcs12 -clcerts -nodes -out cert.pem -in cert.p12
openssl pkcs12 -nodes -out key.pem -in key.p12
cat cert.pem key.pem > yourapp.pem
5  生产对应App Id 的 privosion file。并加入XCode。用这个证书对你的应用进行签名（注意，App ID 必须匹配）
6   APNS 客户端主要涉及下面几个API
 6.1 将app注册notification里面.

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {             [[UIApplication sharedApplication] registerForRemoteNotificationTypes:(UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound)];           // other codes here.         return YES; }

6.2 从APNS上获取测试机的deviceToken.

- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {     NSLog(@"deviceToken: %@", deviceToken); }   - (void)application:(UIApplication *)application didFailToRegisterForRemoteNotificationsWithError:(NSError *)error {     NSLog(@"Error in registration. Error: %@", error); }

3  当收到 PUSH 的时候，处理

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {          NSLog(@" 收到推送消息 ： %@",[[userInfo objectForKey:@"aps"] objectForKey:@"alert"]);     if ([[userInfo objectForKey:@"aps"] objectForKey:@"alert"]!=NULL) {         UIAlertView* alert = [[UIAlertView alloc] initWithTitle:@"推送通知"                                                         message:[[userInfo objectForKey:@"aps"] objectForKey:@"alert"]                                                        delegate:self                                               cancelButtonTitle:@" 关闭"                                               otherButtonTitles:@" 更新状态",nil];         [alert show];         [alert release];     }

客户端部分基本上完成了，需要保留好 pem文件，p12文件的密码，和获得的DeviceToke，服务器方面需要使用到

服务器方面：
1）php驱动。需要将ck.pem和php脚本放到server 上。全部的php代码是：
    

<?php $deviceToken = '6974ac11 870e09fa 00e2238e 8cfafc7d 2052e342 182f5b57 fabca445 42b72e1b'; // 可以用你获得的DeviceToken替换 $pass = '123456';   // Passphrase for the private key (ck.pem file)     // Get the parameters from http get or from command line $message = $_GET['message'] or $message = $argv[1] or $message = 'A test message from worldcup'; $badge = (int)$_GET['badge'] or $badge = (int)$argv[2]; $sound = $_GET['sound'] or $sound = $argv[3];   // Construct the notification payload $body = array(); $body['aps'] = array('alert' => $message); if ($badge)   $body['aps']['badge'] = $badge; if ($sound)   $body['aps']['sound'] = $sound;   /* End of Configurable Items */ $ctx = stream_context_create(); stream_context_set_option($ctx, 'ssl', 'local_cert', 'ck.pem');   // assume the private key passphase was removed. stream_context_set_option($ctx, 'ssl', 'passphrase', $pass);   // connect to apns $fp = stream_socket_client('ssl://gateway.sandbox.push.apple.com:2195', $err, $errstr, 60, STREAM_CLIENT_CONNECT, $ctx); if (!$fp) {     print "Failed to connect $err $errstr\n";     return; } else {    print "Connection OK\n<br/>"; }   // send message $payload = json_encode($body); $msg = chr(0) . pack("n",32) . pack('H*', str_replace(' ', '', $deviceToken)) . pack("n",strlen($payload)) . $payload; print "Sending message :" . $payload . "\n";   fwrite($fp, $msg); fclose($fp); ?>

请 求一次 http://127.0.0.1/apns/apns.php?message=A%20test%20message%20from%20localhost&badge=2&sound=received5.caf就 会向APNS进行一次推送。我的请求结果如下：

Connection OK Sending message :{"aps":{"alert":"A test message from localhost","badge":2,"sound":"received5.caf"}}

将php部署好，在IE中访问即可。

经过测试，可以在真机上获得Push消息。
在iPhone4.3已测试通过。