cURL CSRF令牌 [英] cURL CSRF Token

问题描述

我几个月前，我的同事通过获取工作日程表创建了日历订阅。我相信他已经通过cURL这样做了。

I few months ago, my colleague created an calendar subscription by getting the work schedule. I believe he has done this by cURL.

现在我正在建立一个网站来概述今天应该完成的任务。

Now I'm building a website to have an overview about the tasks that should be done today.

我想检索计划，以便我可以使用它来显示正在特定日期工作的人的姓名。

I want to retrieve the schedule so I can use it to display the name of the people that are working a specific day.

我在网上找到了一个教程，解释了如何在登录后获取数据。
我做的是我复制了登录表单中的输入字段的名称和名为 signin [_csrf_token] 的隐藏字段的名称

I found a tutorial on the web that explains how I can get de data after a login. what I did is that I copied the name of the input fields in the login form, and the name of a hidden field named signin[_csrf_token]

这些名称，我创建了以下代码：

with those names, I created the following code:

<?php

$username = "myusername";
$password = "mypassword";
$url = "http://planner.a-mac.nl/employeeSchedule";
$cookie= "koekje.txt";
$token = "2e4c16f2b664f3ed01827dd38dc11d22";
$ch = curl_init();


                        curl_setopt($ch, CURLOPT_POST, true);
                        curl_setopt($ch, CURLOPT_URL, $url);
                        curl_setopt($ch, CURLOPT_COOKIEJAR, '/tmp/'.$cookie);
                        curl_setopt($ch, CURLOPT_COOKIEFILE, '/tmp/'.$cookie);


                        curl_setopt($ch, CURLOPT_POSTFIELDS, "signin[username]=" . $username ."&signin[password]=" . $password . "&signin[_csrf_token]=" . $token);
                        //stuur de gegevens uit het formulier door naar de link

                        curl_exec($ch);
                        //Zet de output op het scherm

                        if (curl_errno($ch))
                            {
                                   print curl_error($ch);
                                   //Als er een fout is geef deze dan
                            }
                        else
                            {
                                curl_close($ch);
                                //Sluit de link met de website
                            }
?>

当我使用上面的代码加载页面时，我得到的登录表单带有错误信息： / p>

When I load my page with the above code, I get the login form with the error message:

检测到CSRF攻击

CSRF Attack Detected

我如何解决这个问题，所以我可以从网站得到什么数据？

Could someone help me how to solve this problem so I can what data I got from the website?

我联系了我的老同事，但他说他不知道了。 ..

I contacted my old colleague, but he says "he doesn't know anymore"...

推荐答案

CSRF令牌字段值不是固定的，而是新创建的会话的随机生成的值。您需要首先对网页进行干净调用，以获取CSRF令牌值，之后才能与CSRF令牌一起POST用户名/密码，如：

The CSRF token field value is not fixed but is a randomly generated value for newly created sessions. You need a "clean" call to the webpage first to obtain a CSRF token value, only after that you can POST the username/password together with the CSRF token, as in:

<?php

  $username = "myusername";
  $password = "mypassword";
  $url = "http://planner.a-mac.nl/employeeSchedule";
  $cookie= "koekje.txt";
  $ch = curl_init();

  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_COOKIEJAR, '/tmp/'.$cookie);
  curl_setopt($ch, CURLOPT_COOKIEFILE, '/tmp/'.$cookie);

  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  $response = curl_exec($ch);
  if (curl_errno($ch)) die(curl_error($ch));

  $doc = new DOMDocument();
  $doc->loadHTML($response);
  $token = $doc->getElementById("signin__csrf_token")->attributes->getNamedItem("value")->value;

  curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);
  curl_setopt($ch, CURLOPT_POST, true);

  $params = array(
    'signin[username]' => $username,
    'signin[password]' => $password,
    'signin[_csrf_token]' => $token
  );
  curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($params));

  curl_exec($ch);

  if (curl_errno($ch)) print curl_error($ch);
  curl_close($ch);
?>

这篇关于cURL CSRF令牌的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！