iOS 进阶开发— 原生APNS配置以及server实现(c++版本)

本文转自:http://blog.csdn.net/o_surface_o/article/details/9271631

关于iOS APNS的server provider 一直没有看到关于c++版本的，不过现在的各种第三方APNS已经很成熟了，比如百度的云推送SDK等等，这里简单总结一下如何实现iOS原生的APNS server provider.

第一步，生成证书，如何生成.p12证书这里就不细说了，如果不清楚的请查阅其他文档，或者评论里留言，如果问的多的话我再加上

 openssl pkcs12 -clcerts -nokeys -out cert.pem -in Certificate.p12
 provide new password if asked.
 openssl pkcs12 -nocerts -out key.pem -in Certificate.p12
 provide new password if asked.
 cat cert.pem key.unencrypted.pem > ck.pem

测试版本要生成developer 证书，发布的要对应的生成发布版本的。

生成.pem证书之后，把pem证书放到你的server provider工程中去。

第二步:server provider实现(c++版本)

要实现server provider, 需要先编译安装openssl, 因为Apple 的APNS是基于openssl实现的。

先来看头文件实现

 /*
  * Auth The Croods
  */
 #pragma once
 #include
 #include
 #include
 #include
 #include
 #include
 #include
 #include
 #include

 // certificate
 #define CERTFILE "./apns_dev.pem"
 #define SSL_CTX_LOAD_VERIFY_LOCATIONS_FAILED  -1
 #define BIO_DO_CONNECT_FAILED                 -2
 #define SSL_GET_VERIFY_RESULT_FAILED          -3

 class APNS_Croods
 {
 private:
     SSL_CTX                *m_pctx;
     SSL                    *m_pssl;
     const SSL_METHOD       *m_pmeth;
     X509                   *m_pserver_cert;
     EVP_PKEY               *m_pkey;
     BIO *bio;

 public:
     APNS_Croods(void);
     ~APNS_Croods(void);
     int APNS_protal();
     void Reset();
     int pushmessage(const char *token, const char *payload);
     void token2bytes(const char *token, char *bytes);
 };

接下来看类实现：

 #include "APNS_Croods.h"
 APNS_Croods::APNS_Croods(void)
 {
     m_pctx            = NULL;
     m_pssl            = NULL;
     m_pmeth            = NULL;
     m_pserver_cert    = NULL;
     m_pkey            = NULL;
     bio                = NULL;
 }

 APNS_Croods::APNS_Croods(void)
 {
     Reset();
 }

 int APNS_Croods::pushmessage(const char *token, const char *payload){
     char tokenBytes[32];
     char message[293];
     int msgLength;

     token2bytes(token, tokenBytes);

     unsigned char command = 0;
     size_t payloadLength = strlen(payload);
     char *pointer = message;
     unsigned short networkTokenLength = htons((u_short)32);
     unsigned short networkPayloadLength = htons((unsigned short)payloadLength);
     memcpy(pointer, &command, sizeof(unsigned char));
     pointer +=sizeof(unsigned char);
     memcpy(pointer, &networkTokenLength, sizeof(unsigned short));
     pointer += sizeof(unsigned short);
     memcpy(pointer, tokenBytes, 32);
     pointer += 32;
     memcpy(pointer, &networkPayloadLength, sizeof(unsigned short));
     pointer += sizeof(unsigned short);
     memcpy(pointer, payload, payloadLength);
     pointer += payloadLength;
     msgLength = (int)(pointer - message);
     int ret = SSL_write(m_pssl, message, msgLength);

     return ret;
 }

 int APNS_Croods::APNS_protal()
 {
     //
     char token[] = "8da412ec d60b4a8d ea08a8f5 31f0e832 ba87c072 8920cf7d 2e436f40 c367205b";
     char payload[] = "{\"aps\":{\"alert\":\"Hello world!!! message from c++\",\"badge\":1}}";
     char host[] = "gateway.sandbox.push.apple.com:2195";

     /*
     * Lets get nice error messages
     */
     SSL_load_error_strings();
     ERR_load_BIO_strings();
     OpenSSL_add_all_algorithms();

     /*
     * Setup all the global SSL stuff
     */
     SSL_library_init();

     m_pctx = SSL_CTX_new(SSLv23_client_method());
     if (SSL_CTX_use_certificate_chain_file(m_pctx, CERTFILE) != 1) {
         printf("Error loading certificate from file\n");
         return -1;
     }
     if (SSL_CTX_use_PrivateKey_file(m_pctx, CERTFILE, SSL_FILETYPE_PEM) != 1) {
         printf("Error loading private key from file\n");
         return -2;
     }
     bio = BIO_new_connect(host);
     if (!bio) {
         printf("Error creating connection BIO\n");
         return -3;
     }
     if (BIO_do_connect(bio) <= 0) {
         printf("Error connection to remote machine\n");
         return -4;
     }
     if (!(m_pssl = SSL_new(m_pctx))) {
         printf("Error creating an SSL contexxt\n");
         return -5;
     }

     SSL_set_bio(m_pssl, bio, bio);
     int slRc = SSL_connect(m_pssl);
     if (slRc <= 0) {
         printf("Error connecting SSL object>>%d\n", slRc);
         return -6;
     }
     int ret = pushmessage(token,payload);

     printf("push ret[%d]\n", ret);
     Reset();
     return 0;
 }

 // change deviceToken string to binary bytes
 void APNS_Croods::token2bytes(const char *token, char *bytes){
     int val;
     while (*token) {
         sscanf_s(token, "%2x", &val);
         *(bytes++) = (char)val;
         token += 2;
         while (*token == ' ') {
             // skip space
             ++token;
         }
     }
 }

 void APNS_Croods::Reset()
 {
     if(m_pssl)
     {
         SSL_shutdown(m_pssl);
         SSL_free(m_pssl);
         m_pssl = NULL;
     }
     if(m_pctx)
     {
         SSL_CTX_free(m_pctx);
         m_pctx = NULL;
     }
 }

注意：

 char host[] = "gateway.sandbox.push.apple.com:2195";

这是apple APNS的developer 接口，如果是发布的话，要改成相应的发布接口，具体官网查询一下吧

下边接着来看，iOS客户端应用如何实现程序启动时读取通知内容：

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    

 NSDictionary * remoteNotification = [launchOptions objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey];
     NSLog(@">>>>remoteNotification>>%@>>>>>launchOptions>>>%@", remoteNotification,launchOptions);
     if (remoteNotification!=nil) {
         NSLog(@">>>>remoteNotification.userInfo>>%@", [[remoteNotification objectForKey:@"aps"]objectForKey:@"alert"]);
         NSString *alertBody = [[remoteNotification objectForKey:@"aps"]objectForKey:@"alert"];
     }

}

简单罗列了一下，但具体思路应该大家都能看懂了，如有不明白的，请留言