对象访问 URL

const char *cos_gen_object_url(const cos_request_options_t *options, 
                               const cos_string_t *bucket, 
                               const cos_string_t *object)

// COS 的 bucket 名称, [bucket]-[appid], 如: mybucket-1253666666，可在 https://console.cloud.tencent.com/cos5/bucket 查看
char bucket_name[] = "examplebucket-12500000000";
// 开发者访问 COS 服务时拥有的用户维度唯一资源标识，用以标识资源，可在 https://console.cloud.tencent.com/cam/capi 页面获取
char appid[] = "12500000000";
// 开发者拥有的项目身份ID/密钥，可在 https://console.cloud.tencent.com/cam/capi 页面获取
char secret_id[] = "AKIDXXXXXXXX";
char secret_key[] = "1A2Z3YYYYYYYYYY";
//endpoint 是 COS 访问域名信息（不设置存储桶前缀，访问 COS 时会自动在前面拼接上[bucket]-[appid]）， 详情请参见 https://cloud.tencent.com/document/product/436/6224 文档
char endpoint[] = "cos.ap-guangzhou.myqcloud.com";
// 是否使用自定域名。如果设置为 COS_TRUE ，则访问 COS 时需要将 endpoint 的值修改为自定义域名
int is_cname = COS_FALSE;

void init_test_config(cos_config_t* config, int is_cname) {
    cos_str_set(&config->endpoint, endpoint);
    cos_str_set(&config->access_key_id, secret_id);
    cos_str_set(&config->access_key_secret, secret_key);
    cos_str_set(&config->appid, appid);
    // cos_str_set(&config->sts_token, token);  // 使用临时密钥时的 token
    config->is_cname = is_cname;  // 是否使用自定义域名
}

void init_test_request_options(cos_request_options_t* options, int is_cname) {
    options->config = cos_config_create(options->pool);
    init_test_config(options->config, is_cname);
    options->ctl = cos_http_controller_create(options->pool, 0);
}

void get_object_url_demo()
{
    char object_name[] = "test.txt";  // 对象名称
    cos_pool_t *p = NULL;
    cos_request_options_t *options = NULL;
    cos_string_t bucket;
    cos_string_t object;
        
    cos_pool_create(&p, NULL);
    options = cos_request_options_create(p);
    init_test_request_options(options, is_cname);
    cos_str_set(&bucket, bucket_name);
    cos_str_set(&object, object_name);

    printf("url:%s\\n", cos_gen_object_url(options, &bucket, &object));
    cos_pool_destroy(p);
}

int main(int argc, char *argv[])
{
    if (cos_http_io_initialize(NULL, 0) != COSE_OK) {
       exit(1);
    }

    get_object_url_demo();

    cos_http_io_deinitialize();
    return 0;
}