4G_module/third-party/aliyun/LinkSDK/demos/http_basic_demo.c

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2024-09-02 17:54:29 +08:00
/*
* `Linux`pthread的POSIX设备, SDK配置HTTP参数并成功鉴权,
*
* + demo_http_post_lightswitch() , 1HTTP消息
*
* , TODO
*
*/
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "aiot_http_api.h"
#include "aiot_sysdep_api.h"
#include "aiot_state_api.h"
/* TODO: 替换为自己设备的三元组 */
char *product_key = "${YourProductKey}";
char *device_name = "${YourDeviceName}";
char *device_secret = "${YourDeviceSecret}";
/*
TODO:
, 20210730
http_host的格式为"${YourInstanceId}.http.iothub.aliyuncs.com"
${YourInstanceId}: /Id
20210730
http_host修改为: http_host = "iot-as-http.${YourRegionId}.aliyuncs.com"
${YourRegionId}, cn-shanghai等
http_host举例: iot-as-http.cn-shanghai.aliyuncs.com
: https://help.aliyun.com/document_detail/147356.html
*/
char *http_host = "${YourInstanceId}.http.iothub.aliyuncs.com";
/* 位于portfiles/aiot_port文件夹下的系统适配函数集合 */
extern aiot_sysdep_portfile_t g_aiot_sysdep_portfile;
/* 位于external/ali_ca_cert.c中的服务器证书 */
extern const char *ali_ca_cert;
/* TODO: 如果要关闭日志, 就把这个函数实现为空, 如果要减少日志, 可根据code选择不打印
*
* : [1578127395.399][LK-0409] > POST /auth HTTP/1.1
*
* code就是0409(), code值的定义见core/aiot_state_api.h
*
*/
/* 日志回调函数, SDK的日志会从这里输出 */
int32_t demo_state_logcb(int32_t code, char *message)
{
printf("%s", message);
return 0;
}
/* HTTP事件回调函数, 当内部Token变化时被触发, 事件定义见core/aiot_http_api.h */
void demo_http_event_handler(void *handle, const aiot_http_event_t *event, void *user_data)
{
int32_t res;
/* token失效事件处理 */
if (event->type == AIOT_HTTPEVT_TOKEN_INVALID) {
printf("token invalid, invoke iot_http_auth to get new token\n");
res = aiot_http_auth(handle);
printf("aiot_http_auth in callback, res = -0x%04x\r\n", -res);
}
}
/* HTTP事件回调函数, 当SDK读取到网络报文时被触发, 报文描述类型见core/aiot_http_api.h */
void demo_http_recv_handler(void *handle, const aiot_http_recv_t *packet, void *userdata)
{
switch (packet->type) {
case AIOT_HTTPRECV_STATUS_CODE: {
/* TODO: 以下代码如果不被注释, SDK收到HTTP报文时, 会通过这个用户回调打印HTTP状态码, 如404, 200, 302等 */
/* printf("status code: %d\n", packet->data.status_code.code); */
}
break;
case AIOT_HTTPRECV_HEADER: {
/* TODO: 以下代码如果不被注释, SDK收到HTTP报文时, 会通过这个用户回调打印HTTP首部, 如Content-Length等 */
/* printf("key: %s, value: %s\n", packet->data.header.key, packet->data.header.value); */
}
break;
/* TODO: 如果需要处理云平台的HTTP回应报文, 修改这里, 现在只是将回应打印出来 */
case AIOT_HTTPRECV_BODY: {
printf("%.*s\r\n", packet->data.body.len, packet->data.body.buffer);
}
break;
default: {
}
break;
}
}
/* 用HTTP通道上报业务数据给云平台, 例如: 灯已关闭 */
int32_t demo_http_post_lightswitch(void *handle)
{
/* TODO: 如果要修改上报的数据内容, 就修改 data[] 数组 */
char data[] = "{\"id\":\"1\",\"version\":\"1.0\",\"params\":{\"LightSwitch\":0}}";
int32_t res;
/* 用HTTP通道向云平台上报1条业务数据, 接口是aiot_http_send() */
res = aiot_http_send(handle,
"/sys/a13FN5TplKq/http_basic_demo/thing/event/property/post",
(uint8_t *)data,
strlen(data));
if (res < 0) {
printf("aiot_http_send res = -0x%04X\r\n", -res);
return res;
}
res = aiot_http_recv(handle);
if (res >= 0) {
/* 成功接收到服务器应答, 且业务应答码为0, 说明数据上报成功 */
return 0;
} else {
printf("aiot_http_recv res = -0x%04X\r\n", -res);
return -1;
}
}
int main(int argc, char *argv[])
{
void *http_handle = NULL;
int32_t res;
uint16_t port = 443;
aiot_sysdep_network_cred_t cred;
/* 配置SDK的底层依赖 */
aiot_sysdep_set_portfile(&g_aiot_sysdep_portfile);
/* 配置SDK的日志输出 */
aiot_state_set_logcb(demo_state_logcb);
/* 创建SDK的安全凭据, 用于建立TLS连接 */
memset(&cred, 0, sizeof(aiot_sysdep_network_cred_t));
cred.option = AIOT_SYSDEP_NETWORK_CRED_SVRCERT_CA;
cred.max_tls_fragment = 16384;
cred.x509_server_cert = ali_ca_cert;
cred.x509_server_cert_len = strlen(ali_ca_cert);
/* 创建1个HTTP客户端实例并内部初始化默认参数 */
http_handle = aiot_http_init();
/* 配置服务器域名 */
aiot_http_setopt(http_handle, AIOT_HTTPOPT_HOST, (void *)http_host);
/* 配置服务器端口 */
aiot_http_setopt(http_handle, AIOT_HTTPOPT_PORT, (void *)&port);
/* 配置设备安全凭证 */
aiot_http_setopt(http_handle, AIOT_HTTPOPT_NETWORK_CRED, &cred);
/* 配置设备三元组 */
aiot_http_setopt(http_handle, AIOT_HTTPOPT_PRODUCT_KEY, product_key);
aiot_http_setopt(http_handle, AIOT_HTTPOPT_DEVICE_NAME, device_name);
aiot_http_setopt(http_handle, AIOT_HTTPOPT_DEVICE_SECRET, device_secret);
/* 配置数据到达时, SDK应调用的用户回调函数 */
aiot_http_setopt(http_handle, AIOT_HTTPOPT_RECV_HANDLER, demo_http_recv_handler);
/* 配置内部状态变化时, SDK应调用的用户回调函数 */
aiot_http_setopt(http_handle, AIOT_HTTPOPT_EVENT_HANDLER, demo_http_event_handler);
/*
* TODO: , TCP(TLS)
*/
/*
{
int32_t tcp_port = 80;
memset(&cred, 0, sizeof(aiot_sysdep_network_cred_t));
cred.option = AIOT_SYSDEP_NETWORK_CRED_NONE;
aiot_http_setopt(http_handle, AIOT_HTTPOPT_NETWORK_CRED, &cred);
aiot_http_setopt(http_handle, AIOT_HTTPOPT_PORT, &tcp_port);
}
*/
/* 设备认证, 获取token */
res = aiot_http_auth(http_handle);
if (res == 0) {
printf("aiot_http_auth succeed\r\n\r\n");
} else {
/* 如果认证失败, 就销毁实例, 回收资源, 结束程序退出 */
printf("aiot_http_auth failed, res = -0x%04X\r\n\r\n", -res);
printf("please check variables like http_host, produt_key, device_name, device_secret in demo\r\n");
aiot_http_deinit(&http_handle);
return -1;
}
/* TODO: 以下代码如果不被注释, 会演示上报 1 次数据到物联网平台 */
/*
demo_http_post_lightswitch(http_handle);
printf("\r\n");
*/
/* 销毁HTTP实例 */
aiot_http_deinit(&http_handle);
printf("program exit as normal return\r\n");
printf("\r\n");
return 0;
}