Wordpress Http Requests Debug Log

wordpress-http-debug.php

<?php
class WordPress_Http_Debug
{
  function __construct()
  {
    /**
     * Uses the filter bellow to create a timer for the request
     */
    add_filter('https_ssl_verify', [$this, 'request_timer']);
    /**
     * Debug wordpress http calls by logging information to a logfile
     */
    add_action('http_api_debug', [$this, 'debug_log'], 10, 5);

    $this->request_time = null;
    $this->http_error_log = '/var/log/nginx/wordpress-http.log';
  }
  function request_timer() {
    $this->request_time = microtime(true);
  }

  function debug_payload($response, $type, $class, $args, $url) {
    $logpayload = [
      'date' => date('Y-m-d H:m:i.u'),
      'server_uri' => "//$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]?$_SERVER[QUERY_STRING]",
      'request_url' => $url,
      'request_method' => $args['method'],
      'request_body' => $args['body'],
      'request_duration' => microtime(true) - $this->request_time,
      // 'request_args' => $args,
      'response_code' => wp_remote_retrieve_response_code( $response ),
    ];
    $this->request_time = null;
    
    // log error responses
    if (is_wp_error( $response )) {
      $logpayload['request_error'] = (array) $response;
    }
    return $logpayload;
  }

  function debug_log($response, $type, $class, $args, $url) {
    $logpayload = $this->debug_payload($response, $type, $class, $args, $url);
    if (file_put_contents($this->http_error_log, json_encode($logpayload) . "\n", FILE_APPEND) === false) {
      error_log('tm_debug_http_api FAILED to write log');
    }
  }
}
new WordPress_Http_Debug();