使用 jQuery 验证 RECAPTCHA

Verifying RECAPTCHA with jQuery

提问by Magnar

I'm trying to verify a Recaptcha using jQuery, but I keep getting an error telling me: Access to restricted URI denied" code: "1012

我正在尝试使用 jQuery 验证 Recaptcha，但我不断收到错误消息，告诉我：访问受限 URI 被拒绝”代码：“1012

This is what I've tried so far:

这是我迄今为止尝试过的：

 var challengeVal = $("#recaptcha_challenge_field").attr("value");
 var reponseVal = $("#recaptcha_response_field").attr("value");
 var remoteIp = <%= "'" + Request.ServerVariables["REMOTE_HOST"] + "'" %>
 var privateKey = 'MY_PRIVATE_KEY';

 var requestUrl = "http://api-verify.recaptcha.net/verify?privatekey=" + privateKey + "&remoteip=" + remoteIp + "&challenge=" + challengeVal + "&response=" + reponseVal;

 $.ajax({
    type: "POST",
    url: requestUrl,
    dataType: "json",
    success: function(data) {
       alert('response from recaptcha');
    },
    error: function() {
       alert("An error occured.");
    }
  });

Anyone tried this, who can point me in the right direction?

任何人都试过这个，谁能指出我正确的方向？

Thanks.

谢谢。

回答by Magnar

JavaScript is prohibited from making cross-domain XMLHttpRequests for security reasons. There are workarounds, but they only work if you control both domains.

出于安全原因，禁止 JavaScript 进行跨域 XMLHttpRequest。有一些解决方法，但它们只有在您控制两个域时才有效。

Solution: Make an AJAX-call to your own server, and contact recaptcha through server side code.

解决方案：对自己的服务器进行AJAX调用，通过服务器端代码联系recaptcha。

回答by hanoo

i would look -> racaptcha docs AJAXthere is a full example in javascript.

我会看 -> racaptcha docs AJAX在 javascript 中有一个完整的例子。

回答by Guido Lemmens 2

A full demo can be found and downloaded from this page. But you still need to generate the public and private keys for your domain here https://www.google.com/recaptcha/admin/create

可以从此页面找到并下载完整的演示。但是您仍然需要在此处为​​您的域生成公钥和私钥https://www.google.com/recaptcha/admin/create

回答by mmengel

@Magnar already answered w/ respect to the security reasons. @Guido Lemmens 2 gave a PHP example. I wanted to add some ASP.NET WebForms (vs. MVC) code from another Stack question.

@Magnar 已经就安全原因做出了回答。@Guido Lemmens 2 给出了一个 PHP 示例。我想从另一个 Stack question添加一些 ASP.NET WebForms (vs. MVC) 代码。