我在本地主机上的aspx页面上使用ReCaptcha和javascript API。我在某处读到只要我在localhost上使用它就不需要密钥。所以,我使用了一些我在某处找到的随机密钥。我可以成功地渲染recaptcha挑战。以下是我的javascript代码。
Recaptcha.create("6Ld4iQsAAAAAAM3nfX_K0vXaUudl2Gk0lpTF3REf", 'captchadiv',
{
tabindex: 1,
theme: "clean",
callback: Recaptcha.focus_response_field
});
//To Validate user response
function Recaptcha_IsCorrect()
{
var xmlHttpRequest;
var PageURL = document.URL;
var xmlDoc;
if (window.XMLHttpRequest)
{
xmlHttpRequest = new XMLHttpRequest();
}
else
{
xmlHttpRequest = new ActiveXObject("Microsoft.xmlHttpRequest");
}
var challenge = Recaptcha.get_challenge();
var userResponse = Recaptcha.get_response();
var url = "../Ajax/PIAsyncAjax.asmx/ValidateReCaptcha?clientIP=127.0.0.1&privateKey=6Ld4iQsAAAAAAM3nfX_K0vXaUudl2Gk0lpTF3REf&challenge=" + challenge + "&response=" + userResponse;
xmlHttpRequest.open("GET", url);
xmlHttpRequest.onreadystatechange = function ()
{
if (xmlHttpRequest.readyState == 4 && xmlHttpRequest.status == 200)
{
alert(xmlHttpRequest.responseText);
}
};
xmlHttpRequest.send();
}
以下是我的webservice代码,它暴露了webmethod以验证ReCaptcha用户输入。我收到错误“invalid-site-private-key”。
namespace YADA.YADAYADA{
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
public class PIAsyncAjax : System.Web.Services.WebService
{
[WebMethod]
public string ValidateReCaptcha(string clientIP, string privateKey, string challenge, string response)
{
bool isValid = false;
string validationResponse = "";
reCaptchaValidation validator =
new reCaptchaValidation(null,
clientIP,
privateKey,
challenge,
response);
isValid = validator.Validate();
if (isValid)
{
validationResponse = "true";
}
else
{
if (!validator.IsErrored)
{
validationResponse = "false";
}
else
{
// oh dear, something not right
if (validator.Exception != null) // an exception occurred while
// trying to validate
validationResponse = validator.Exception.ToString();
else if (validator.ValidationResult != null) // the validation web service
// returned an error code
// (other than an invalid captcha solution)
validationResponse = "web service error: " + validator.ValidationResult;
}
}
return validationResponse;
}
}
public class reCaptchaValidation
{
private string challenge, response, privateKey, ip;
private IWebProxy proxy;
public reCaptchaValidation(string clientIP, string privateKey,
string challenge, string response) : this(null, clientIP, privateKey,
challenge, response) { }
public reCaptchaValidation(IWebProxy proxy, string clientIP,
string privateKey, string challenge, string response)
{
this.proxy = proxy;
this.ip = clientIP;
this.privateKey = privateKey;
this.challenge = challenge;
this.response = response;
}
private bool _errored;
public bool IsErrored
{
get
{
return _errored;
}
}
private Exception _ex;
public Exception Exception
{
get
{
return _ex;
}
}
private string _vr;
public string ValidationResult
{
get
{
return _vr;
}
}
public bool Validate()
{
try
{
string post = "privatekey=" + HttpUtility.UrlEncode(privateKey) +
"&remoteip=" + HttpUtility.UrlEncode(ip) + "&challenge=" +
HttpUtility.UrlEncode(challenge) + "&response=" +
HttpUtility.UrlEncode(response);
WebRequest wr = HttpWebRequest.Create
("http://www.google.com/recaptcha/api/verify");
wr.Method = "POST";
if (proxy != null)
wr.Proxy = proxy;
wr.ContentLength = post.Length;
wr.ContentType = "application/x-www-form-urlencoded";
using (StreamWriter sw = new StreamWriter(wr.GetRequestStream()))
{
sw.Write(post);
sw.Close();
}
HttpWebResponse resp = (HttpWebResponse)wr.GetResponse();
using (StreamReader sr = new StreamReader(resp.GetResponseStream()))
{
string valid = sr.ReadLine();
if (valid != null)
{
if (valid.ToLower().Trim() == "false")
{
string errorcode = sr.ReadLine();
if (errorcode != null)
{
if (errorcode.ToLower().Trim() != "incorrect-captcha-sol")
{
_vr = errorcode;
_errored = true;
return false;
}
}
}
return (valid.ToLower().Trim() == "true");
}
else _vr = "empty web service response";
sr.Close();
return false;
}
}
catch (Exception caught)
{
_errored = true;
_ex = caught;
}
return false;
}
}}
我做错了什么?我应该得到私钥吗?任何帮助都会很棒。
提前致谢, Venkat。
答案 0 :(得分:0)
它适用于我刚刚创建的公钥和私钥。该死的,我只是假设,“localhost”在注册时不会被接受为合法的域名。