在 Rails 应用程序中编写类似 cURL 的函数

Question

我正在尝试将此 PHP cURL 函数转换为与我的 Rails 应用程序一起使用。该代码来自短信支付网关，需要验证POST参数。因为我是一个 PHP 大菜鸟，所以我不知道如何处理这个问题。

$verify_url = 'http://smsgatewayadress';



    $fields = '';

    $d = array(

            'merchant_ID' => $_POST['merchant_ID'],

            'local_ID' => $_POST['local_ID'],

            'total' => $_POST['total'],

            'ipn_verify' => $_POST['ipn_verify'],

            'timeout' => 10, 
            );



    foreach ($d as $k => $v)

    {

        $fields .= $k . "=" . urlencode($v) . "&";

    }

    $fields = substr($fields, 0, strlen($fields)-1);



    $ch = curl_init($verify_url); //this initiates a HTTP connection to $verify_url, the connection headers will be stored in $ch 

    curl_setopt($ch, CURLOPT_POST, 1); //sets the delivery method as POST

    curl_setopt($ch, CURLOPT_POSTFIELDS, $fields); //The data that is being sent via POST. From what I can see the cURL lib sends them as a string that is built in the foreach loop above

    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); //This verifies if the target url sends a redirect header and if it does cURL follows that link

    curl_setopt($ch, CURLOPT_HEADER, 0); //This ignores the headers from the answer

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //This specifies that the curl_exec function below must return the result to the accesed URL

    $result = curl_exec($ch); //It ransfers the data via POST to the URL, it gets read and returns the result



    if ($result == true)

    {

        //confirmed

        $can_download = true;

    }

    else

    {

        //failed
        $can_download = false;

    }

}



if (strpos($_SERVER['REQUEST_URI'], 'ipn.php'))

    echo $can_download ? '1' : '0'; //we tell the sms sever that we processed the request

我用 google 搜索了 Rails 中的 cURL lib 对应项，找到了大量选项，但没有一个选项是我能像该脚本那样理解和使用的。

如果有人能帮助我将此脚本从 php 转换为 ruby​​，我将不胜感激。

Answer 1

最直接的方法可能是使用 Ruby curb 库，这是最cURL 的简单包装。 Curl::Easy 中的许多选项直接映射到您此处的内容。一个基础可能是：

url = "http://smsgatewayadress/"
Curl::Easy.http_post(url,
  Curl::PostField.content('merchant_ID', params[:merchant_ID]),
  # ...
)