asp.net-mvc-4 - 在 MVC4 中使用 DotNetOpenAuth 的 LinkedIn 完整个人资料详细信息

Question

我的 MVC4 应用程序允许使用 LinkedIn 帐户登录。我想提取登录用户的 linkedIn 中可用的所有详细信息。目前我已经做了以下工作。

在我的 AuthConfig.cs 中，

  Dictionary<string, object> linkedInExtraData = new Dictionary<string, object>();           
        linkedInExtraData.Add("Icon", "../Images/linkedIn.png");          
        OAuthWebSecurity.RegisterClient(
          client: new App_Start.LinkedInCustomClient("xxxxxxxxxxxx", "yyyyyyyyyyyyyyy"),
          displayName: "LinkedIn",
          extraData: linkedInExtraData);

在 linkedInCustomClient.cs 中，来自 LinkedIn 开发人员工具包

public class LinkedInCustomClient : OAuthClient
{
    private static XDocument LoadXDocumentFromStream(Stream stream)
    {
        var settings = new XmlReaderSettings
        {
            MaxCharactersInDocument = 65536L
        };
        return XDocument.Load(XmlReader.Create(stream, settings));
    }


    /// Describes the OAuth service provider endpoints for LinkedIn.
    private static readonly ServiceProviderDescription LinkedInServiceDescription =
            new ServiceProviderDescription
            {
                AccessTokenEndpoint =
                        new MessageReceivingEndpoint("https://api.linkedin.com/uas/oauth/accessToken",
                        HttpDeliveryMethods.PostRequest),
                RequestTokenEndpoint =
                        new MessageReceivingEndpoint("https://api.linkedin.com/uas/oauth/requestToken?scope=r_fullprofile",
                        HttpDeliveryMethods.PostRequest),
                UserAuthorizationEndpoint =
                        new MessageReceivingEndpoint("https://www.linkedin.com/uas/oauth/authorize",
                        HttpDeliveryMethods.PostRequest),
                TamperProtectionElements =
                        new ITamperProtectionChannelBindingElement[] { new HmacSha1SigningBindingElement() },
                ProtocolVersion = ProtocolVersion.V10a
            };

    public LinkedInCustomClient(string consumerKey, string consumerSecret) :
        base("linkedIn", LinkedInServiceDescription, consumerKey, consumerSecret) { }

    /// Check if authentication succeeded after user is redirected back from the service provider.
    /// The response token returned from service provider authentication result. 
    [SuppressMessage("Microsoft.Design", "CA1031:DoNotCatchGeneralExceptionTypes",
        Justification = "We don't care if the request fails.")]
    protected override AuthenticationResult VerifyAuthenticationCore(AuthorizedTokenResponse response)
    {
        // See here for Field Selectors API http://developer.linkedin.com/docs/DOC-1014
        const string profileRequestUrl =
            "https://api.linkedin.com/v1/people/~:(id,first-name,last-name,interests,headline,industry,summary,email-address,location:(name),picture-url,positions,associations,languages,honors,educations,date-of-birth,primary-twitter-account,three-current-positions,three-past-positions,group-memberships,specialties,skills)";


        string accessToken = response.AccessToken;
        string tokenSecret = (response as ITokenSecretContainingMessage).TokenSecret;
        string Verifier = response.ExtraData.Values.First();


        var profileEndpoint =
            new MessageReceivingEndpoint(profileRequestUrl, HttpDeliveryMethods.GetRequest);
        HttpWebRequest request =
            WebWorker.PrepareAuthorizedRequest(profileEndpoint, accessToken);

        try
        { 
            using (WebResponse profileResponse = request.GetResponse())
            {
                using (Stream responseStream = profileResponse.GetResponseStream())
                {
                    XDocument document = LoadXDocumentFromStream(responseStream); 

                    return new AuthenticationResult(
                        isSuccessful: true,
                        provider: ProviderName,
                        providerUserId: userId,
                        userName: userName,
                        extraData: extraData);
                }
            }
        }
        catch (Exception exception)
        {
            return new AuthenticationResult(exception);
        }
    }

}

在我的 Controller 中，

AuthenticationResult result = OAuthWebSecurity.VerifyAuthentication(Url.Action("ExternalLoginCallback", new { ReturnUrl = returnUrl }));
        if (!result.IsSuccessful)
        {
            return RedirectToAction("ExternalLoginFailure");
        }

我需要在我的 Controller 中获取以下详细信息作为身份验证结果。

(id,first-name,last-name,interests,headline,industry,summary,email-address,location:(name),picture-url,positions,associations,languages,honors,educations,date-of-birth,primary-twitter-account,three-current-positions,three-past-positions,group-memberships,specialties,skills)

Answer 1

LinkedIn 对您的请求的响应将是一个 xml 文件。格式和字段在LinkedIn Profile Fields中提到。

要获取电子邮件字段，您需要将请求 token url 修改为

RequestTokenEndpoint = new MessageReceivingEndpoint("https://api.linkedin.com/uas/oauth/requestToken?scope=r_fullprofile+r_emailaddress",
HttpDeliveryMethods.PostRequest),

您可以通过以下代码获取所需的字段

 XDocument document = LoadXDocumentFromStream(responseStream); 

例如:从 xml 文件中获取名字字段，

var firstName = document.Root.Element("first-name").Value;

语言、职位、技能等字段将作为个人资料的一部分作为结构化对象返回。

例如:语言字段。

    var Lang = document.Root.Element("languages");                        
    var languages = new List<string>();
    if (Lang != null)
    {
     foreach (var l in Lang.Elements())
        {
          if (l.Element("language") != null && l.Element("language").Element("name") != null)
          {
            languages.Add(l.Element("language").Element("name").Value);
           }
         }
      }

然后您可以将字段添加到可在 Controller 中访问的“extraData”。

 extraData.Add("firstName", firstName);
 extraData.Add("languages", lang);