C++-Mongoose(3)-http-server-https-restful

news2024/11/17 4:58:37

1.url 结构

2.http和 http-restful区别在于对于mg_tls_opts的赋值

2.1 http和https 区分

a) port地址

static const char *s_http_addr = "http://0.0.0.0:8000"; // HTTP port

static const char *s_https_addr = "https://0.0.0.0:8443"; // HTTPS port

b)https时对mg_tls_opts赋值

 struct mg_tls_opts opts = {
#ifdef TLS_TWOWAY
        .ca = mg_str(s_tls_ca),
#endif
        .cert = mg_str(s_tls_cert),
        .key = mg_str(s_tls_key)};
    mg_tls_init(c, &opts);
  }

3个重要变量:
static const char* s_tls_ca ;
static const char* s_tls_cert；
static const char* s_tls_key;

#ifdef TLS_TWOWAY
static const char* s_tls_ca =
"-----BEGIN CERTIFICATE-----\n"
"MIIBqjCCAU+gAwIBAgIUESoOPGqMhf9uarzblVFwzrQweMcwCgYIKoZIzj0EAwIw\n"
"RDELMAkGA1UEBhMCSUUxDzANBgNVBAcMBkR1YmxpbjEQMA4GA1UECgwHQ2VzYW50\n"
"YTESMBAGA1UEAwwJVGVzdCBSb290MCAXDTIwMDUwOTIxNTE0NFoYDzIwNTAwNTA5\n"
"MjE1MTQ0WjBEMQswCQYDVQQGEwJJRTEPMA0GA1UEBwwGRHVibGluMRAwDgYDVQQK\n"
"DAdDZXNhbnRhMRIwEAYDVQQDDAlUZXN0IFJvb3QwWTATBgcqhkjOPQIBBggqhkjO\n"
"PQMBBwNCAAQsq9ECZiSW1xI+CVBP8VDuUehVA166sR2YsnJ5J6gbMQ1dUCH/QvLa\n"
"dBdeU7JlQcH8hN5KEbmM9BnZxMor6ussox0wGzAMBgNVHRMEBTADAQH/MAsGA1Ud\n"
"DwQEAwIBrjAKBggqhkjOPQQDAgNJADBGAiEAnHFsAIwGQQyRL81B04dH6d86Iq0l\n"
"fL8OKzndegxOaB0CIQCPwSIwEGFdURDqCC0CY2dnMrUGY5ZXu3hHCojZGS7zvg==\n"
"-----END CERTIFICATE-----\n";
#endif
static const char* s_tls_cert =
"-----BEGIN CERTIFICATE-----\n"
"MIIBhzCCASygAwIBAgIUbnMoVd8TtWH1T09dANkK2LU6IUswCgYIKoZIzj0EAwIw\n"
"RDELMAkGA1UEBhMCSUUxDzANBgNVBAcMBkR1YmxpbjEQMA4GA1UECgwHQ2VzYW50\n"
"YTESMBAGA1UEAwwJVGVzdCBSb290MB4XDTIwMDUwOTIxNTE0OVoXDTMwMDUwOTIx\n"
"NTE0OVowETEPMA0GA1UEAwwGc2VydmVyMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcD\n"
"QgAEkuBGnInDN6l06zVVQ1VcrOvH5FDu9MC6FwJc2e201P8hEpq0Q/SJS2nkbSuW\n"
"H/wBTTBaeXN2uhlBzMUWK790KKMvMC0wCQYDVR0TBAIwADALBgNVHQ8EBAMCA6gw\n"
"EwYDVR0lBAwwCgYIKwYBBQUHAwEwCgYIKoZIzj0EAwIDSQAwRgIhAPo6xx7LjCdZ\n"
"QY133XvLjAgVFrlucOZHONFVQuDXZsjwAiEAzHBNligA08c5U3SySYcnkhurGg50\n"
"BllCI0eYQ9ggp/o=\n"
"-----END CERTIFICATE-----\n";

static const char* s_tls_key =
"-----BEGIN PRIVATE KEY-----\n"
"MIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQglNni0t9Dg9icgG8w\n"
"kbfxWSS+TuNgbtNybIQXcm3NHpmhRANCAASS4EacicM3qXTrNVVDVVys68fkUO70\n"
"wLoXAlzZ7bTU/yESmrRD9IlLaeRtK5Yf/AFNMFp5c3a6GUHMxRYrv3Qo\n"
"-----END PRIVATE KEY-----\n";

2.2code

restfulserver_fn函数

static void restfulserver_fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) 
{
  if (ev == MG_EV_ACCEPT && fn_data != NULL)  //1.如果收到消息 MG_EV_ACCEPT
  {
      struct mg_tls_opts opts =               //1.1.结构赋值
      {
          #ifdef TLS_TWOWAY
            .ca = mg_str(s_tls_ca),
          #endif
             .cert = mg_str(s_tls_cert),
             .key = mg_str(s_tls_key)
        };   
       mg_tls_init(c, &opts);                  //1.2放入上下文中
   }


  if (ev == MG_EV_HTTP_MSG)                    //2.如果收到消息 MG_EV_HTTP_MSG
  {
      struct mg_http_message *hm = (struct mg_http_message *) ev_data;
      //1.get请求 ,显示
      if (mg_http_match_uri(hm, "/api/stats"))   
      {
      // Print some statistics about currently established connections
          mg_printf(c, "HTTP/1.1 200 OK\r\nTransfer-Encoding: chunked\r\n\r\n");
          mg_http_printf_chunk(c, "ID PROTO TYPE      LOCAL           REMOTE\n");
          for (struct mg_connection *t = c->mgr->conns; t != NULL; t = t->next) 
          {
              mg_http_printf_chunk(c, "%-3lu %4s %s %M %M\n", t->id,
                                 t->is_udp ? "UDP" : "TCP",
                                 t->is_listening  ? "LISTENING"
                                 : t->is_accepted ? "ACCEPTED "
                                                  : "CONNECTED",
                             mg_print_ip, &t->loc, mg_print_ip, &t->rem);
         }
         mg_http_printf_chunk(c, "");  // Don't forget the last empty chunk
      } 
      //2.post请求 回result
      else if (mg_http_match_uri(hm, "/api/f2/*"))  
      {
         mg_http_reply(c, 200, "", "{\"result\": \"%.*s\"}\n", (int) hm->uri.len,
                    hm->uri.ptr);
      } 
      //3.显示当前目录文件列表

      else                           
      {
         struct mg_http_serve_opts opts = {.root_dir = s_root_dir};
         mg_http_serve_dir(c, ev_data, &opts);
      }
  }
  (void) fn_data;
}

main 函数

void main()
{
	struct mg_mgr mgr;                            // Event manager
	mg_log_set(MG_LL_DEBUG);                      // Set log level
	mg_mgr_init(&mgr);                            // Initialise event manager
	mg_http_listen(&mgr, s_http_addr, restfulserver_fn, NULL);  // Create HTTP listener
	mg_http_listen(&mgr, s_https_addr, restfulserver_fn, (void*)1);  // HTTPS listener
	for (;;) mg_mgr_poll(&mgr, 1000);                    // Infinite event loop
	mg_mgr_free(&mgr);
}

2.3测试

启动httpserver 程序
1.2.1 浏览器访问:http://127.0.0.1:8000:
将显示exe程序根目录文件列表
1.2.2 浏览器访问: http://127.0.0.1:8000/api/stats:
将显示：

1.2.3 使用postman: 发送post请求:
http://127.0.0.1:8000/api/f2/*，