nellson 2019-07-01
由于各种原因,没有接入完整的调用链追踪,(┬_┬)。但是我们自身再通过php的curl调用各端接口时,会请求多次。那么有没有一种方法可以在不植入业务代码的前提下,捕捉到这些curl的请求呢。显然,ci有基本的hook操作。我们可以在相关节点时,可选择的把这些收集到到的通过异步的方式发送给指定的监听者。
class Ycurl { public $resource_arr; public static $resource_id = 0; //资源(resource handle id public $save_requests = true;//是否保存,默认全部保存 public $requests = array();//n次请求参数、返回参数,错误(如果有) public $request_counts = 0;//总的请求次数,可能一个页面调用多次 public $send_redis_email = false;//是否需要以异常方式发送邮件 ... $ret = curl_exec($ch); $curl_info_arr = curl_getinfo($ch); $this->request_counts += 1; if ($this->save_requests === true) { $arg_list = func_get_args(); $this->requests[$resource_id]['url'] = $curl_info_arr['url']; $this->requests[$resource_id]['req_params'] = json_encode([$arg_list], 320); $this->requests[$resource_id]['response'] = $ret; $this->requests[$resource_id]['http_code'] = $curl_info_arr['http_code']; $this->requests[$resource_id]['is_error'] = curl_error($ch); $this->requests[$resource_id]['total_time'] = $curl_info_arr['total_time']; $this->requests[$resource_id]['primary_ip'] = $curl_info_arr['primary_ip']; if($this->send_redis_email){ redis_list_add(json_encode($this->requests,320)); } }
从ci对象中抽取curl对象,其他自定义的对象也可以同样思路。
$hook['post_system'][] = array( 'class' => 'Curl_trace', 'function' => '_split_ci_of_curl', 'filename' => 'curl_trace.php', 'filepath' => 'hooks'
<?php /** * Created by PhpStorm. * User: TongBo * Date: 2019/2/26 * Time: 16:19 */ defined('BASEPATH') OR exit('No direct script access allowed'); Class Curl_trace { public $ci; public function __construct() { $this->ci =& get_instance(); } /** *抽取整个ci对象的所有curl对象实例 * @time 2019/3/1 11:12 * @author tongbo */ public function _split_ci_of_curl() { $class = $this->ci->router->fetch_class(); $need_trace_controller = [ 'home', 'admin', ]; $func = $this->ci->router->fetch_method(); if (in_array($class, $need_trace_controller) or 1) { foreach (get_object_vars($this->ci) as $name => $ci_object) { if (is_object($ci_object)) { if ($ci_object instanceof Ycurl) { $curls[get_class($this->ci) . "/{$func}:$" . $name] = $ci_object; } } } if (!empty($curls)) { foreach ($curls as $ctl_func => $curl) { foreach ($curl->requests as $index => $single_curl_obj) { $tmp[$ctl_func][$index] = $single_curl_obj; $tmp[$ctl_func][$index]['record_time'] = date('Ymd H:i:s' . substr((string)microtime(), 1, 8) . ' e'); redis_list_add(json_encode([$ctl_func . "_" . $index, $tmp[$ctl_func][$index]], 320)); } } } } } }
ci框架中不可避免的使用了exit操作,或者其他业务代码中也使用。这样导致钩子函数无法正常完成他的使用。除了必要规范不必要的exit之外,我们也可以用register_shut_down这个函数来实现每次都必须记录。(考虑性价比吧)