Codeigniter 4：无法解密加密的帖子数据

Posted 2023-03-28

【中文标题】Codeigniter 4：无法解密加密的帖子数据

【英文标题】：Codeigniter 4: failed to decrypt encrypted post data

【发布时间】：2022-01-21 08:00:37

【问题描述】：

对不起我的英语 我是 Codeigniter 4 的新手。我尝试从加密的发布请求中解密数据。我在视图中成功加密了我的数据，但在使用 javascript 发布后无法在我的控制器中再次解密。这是我的代码 我的控制器

<?php namespace App\Controllers; 
use CodeIgniter\Controller;
use App\Models\Store_MDL;
class Home extends BaseController
 
    protected $ProductModel; 
    protected $request;protected $session;protected $encrypt;
    public function __construct() 
        $this->ProductModel = new Store_MDL();
        $this->request = \Config\Services::request();
        $this->encrypt = \Config\Services::encrypter();
        $this->session = \Config\Services::session();
        $this->session->start();
    
    public function index()
    
        $data['encrypter'] = $this->encrypt;
        return view('home_page', $data);
    

    public function encthis()
       
        $val = $_POST['str'];
        $encrypters = $this->encrypt;
        //$ciphertext = $encrypters->encrypt('My secret message');  
        echo $encrypters->decrypt($val);
        //echo $val;
        return view('product/product-v');
       

这里是我的观点 home_page.php

<?php $n=0; foreach ($product as $rows)
                    $n++;
                    //echo count($rows);
                    if($n < count($rows))
                        $dev = '<div class="divider mb-3 mt-n2"></div>';
                    else$dev = '';
                    if($n % 2 == 0)
                        echo '<a href="#" value = "'.base_url().'/home/encthis" data-v="'.$encrypter->encrypt($rows['prno']).'" class = "n-link"><div class="row">
                                <div class="col-6">
                                    <h1 class="font-20 mb-0 line-height-l">'.$rows['prname'].'</h1>
                                    <p class="mb-3">
                                        '.$rows['prdescription'].'
                                    </p>
                                    <h2 class="font-16 mb-0">Rp. '.$rows['prprice'].'</h2>
                                </div>
                                <div class="col-6">
                                    <img src="'.base_url().'/public/uploads/'.$rows['prpath'].'/'.$rows['primage'].'" class="img-fluid rounded-circle shadow-xl">
                                </div>
                            </div></a>'.$dev;
                    else
                        echo '<a href="#" value = "'.base_url().'/home/encthis" data-v="'.$encrypter->encrypt($rows['prno']).'" class = "n-link"><div class="row">
                                <div class="col-6">
                                    <img src="'.base_url().'/public/uploads/'.$rows['prpath'].'/'.$rows['primage'].'" class="img-fluid rounded-circle shadow-xl">
                            </div>
                            <div class="col-6">
                                <h1 class="font-18 mb-0 line-height-l">'.$rows['prname'].'</h1>
                                <p class="mb-3">
                                    '.$rows['prdescription'].'
                                </p>
                                <h2 class="font-16 mb-0">Rp. '.$rows['prprice'].'</h2>
                            </div>
                        </div></a>'.$dev;
                    
                 ?>

比这里我的脚本

<script>    
    $('.n-link').on('click', function () 
                var link = $(this).attr('value');
                var pos = $(this).attr('data-v');
                $.post(link,  str:pos)
                  .done(function(data) 
                    document.getElementById("context").innerhtml = data;
                    
                ); 
            ); 
</script>

我总是收到通知 500（内部服务器错误）。

【参考方案1】：

经过几个小时的挣扎，我找到了一些线索， 换个方式

$encrypter->encrypt($rows['prno']); base64_encode($encrypter->encrypt($rows['prno']));

在控制器中， 改变

$encrypters->decrypt($val); $encrypters->decrypt(base64_decode($val));

希望有用