OpenID登录：试图从谷歌OP获取邮箱地址 [英] OpenID: Trying to Get Email Address from Google OP

问题描述

我使用dotnetopenauth 3.2来实现OpenID和无法弄清楚如何让谷歌在声明响应传送的电子邮件地址。我知道，谷歌不支持简单的登记，但我不能确定他们做了什么支持。

I’m using dotnetopenauth 3.2 to implement Openid and can’t figure out how to get Google to pass the email address in the Claims Response. I know that Google doesn’t support simple registration, but I can’t determine what they do support.

注意，该问题是，我刚开始学习的OpenID，我知道我没有关于这一点我认为是导致我的困惑规范扎实掌握。

Caveat to this question is that I just started learning OpenID and I know I don’t have a solid grasp on the specification which I think is leading to my confusion.

任何帮助将是AP preciated！

Any help would be appreciated!

推荐答案

好了它。我贴在<一个问题href=\"http://groups.google.com/group/google-federated-login-api/browse_thread/thread/5521cae736698091#\"相对=nofollow> Goolge的公司联合登录API组，被告知使用<一个href=\"http://docs.dotnetopenauth.net/v3.3/html/N_DotNetOpenAuth_OpenId_Extensions_AttributeExchange.htm\"相对=nofollow>属性交换。

Ok figured it out. I posted a question on Goolge's Federated Log API group and was told to use Attribute exchange.

下面是code为 DotNetOpenAuth 。

的 请不要在生产中使用这个code。这是用于说明目的而已！的

Please don't use this code in production. This is for illustration purposes only!

的请求：

using (OpenIdRelyingParty openid = new OpenIdRelyingParty())
{
    IAuthenticationRequest request = openid.CreateRequest(openidurl);

    var fetch = new FetchRequest();
    fetch.Attributes.AddRequired(WellKnownAttributes.Contact.Email);
    request.AddExtension(fetch);

    // Send your visitor to their Provider for authentication.
    request.RedirectToProvider();
}

响应：

OpenIdRelyingParty openid = new OpenIdRelyingParty();
var response = openid.GetResponse();
if (response != null)
{
    switch (response.Status)
    {
        case AuthenticationStatus.Authenticated:
        {
            var fetch = response.GetExtension<FetchResponse>();
            string email = string.Empty();
            if (fetch != null)
            {
                email =  fetch.GetAttributeValue(
                    WellKnownAttributes.Contact.Email);
            }

            FormsAuthentication.RedirectFromLoginPage(
                response.ClaimedIdentifier, false);
            break;
        }
        ...
    }
}

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