Spring Security和Facebook OAuth 2.0与Graph API集成

Question

请至少伪(但工作环境不是"也许这应该工作")应用程序上下文和控制器/过滤器将验证和/或自动注册Facebook用户.

这个链接:http://blog.kadirpekel.com/2009/11/09/facebook-connect-integration-with-spring-security/不会这样做.实际上我会把减号给任何将其作为答案发布的人.我花了2个小时的东西,我没有让它工作.在这项努力之后,我结束了更大胆,感觉比平常更愚蠢:-(

我真的很想看到facebook连接的OAuth 2.0解决方案.并将Facebook JavaScript API的使用限制在绝对最低限度.

以下链接显示了我的需求:http: //www.richardnichols.net/2010/06/implementing-facebook-oauth-2-0-authentication-in-java/

请仅发布此问题的代码.我已经得到了我能处理的所有建议.

UPDATE

如果有兴趣的话,我有servlet解决方案,并在这里发布答案: JSP中的Facebook连接示例(tomcat)

Answer 1

这是 facebook OAuth 2.0 的 MVC 实现，代码是用 C# 编写的，希望它与 java 的相似之处可以帮助您。

控制器（入口点）：控制器（在MVC中）是代码中当有人点击登录链接后控件到达的点。

 public ActionResult Authenticate()
        {
                var oauthFacebook = new FacebookOAuth();
                if (Request["code"] == null)
                {
                    //Redirect the user to Facebook for authorization.
                    Response.Redirect(oauthFacebook.AuthorizationLinkGet());
                }
                else
                {
                    //Get the access token and secret.
                    oauthFacebook.AccessTokenGet(Request["code"]);
                    if (oauthFacebook.Token.Length > 0)
                    {
                        //We can now make our api calls
                        var user = oauthFacebook.GetAttributes();
                    }
                }
        }

FacebookOAuth 类

public class FacebookOAuth : Oauth
    {
        public FacebookOAuth()
        {
            Authorize = "https://graph.facebook.com/oauth/authorize";
            AccessToken = "https://graph.facebook.com/oauth/access_token";
            CallbackUrl = "http://<YourURLHere>/Authenticate";
            AttributesBaseUrl = "https://graph.facebook.com/me/?access_token=";
            ConsumerKey = ConfigurationManager.AppSettings["FacebookConsumerKey"];//Ur Consumer Key goes here
            ConsumerSecret = ConfigurationManager.AppSettings["FacebookConsumerSecret"];//Ur Consumer secret goes here
            Provider = "Facebook";
        }

        public override string AuthorizationLinkGet()
        {
            return
                string.Format(
                    "{0}?client_id={1}&redirect_uri={2}&scope=email,user_education_history,user_location,user_hometown",
                    Authorize, ConsumerKey, CallbackUrl);
        }

        public User GetAttributes()
        {
            string attributesUrl = string.Format("{0}{1}", AttributesBaseUrl, Token);
            string attributes = WebRequest(Method.Get, attributesUrl, String.Empty);
            var FacebookUser = new JavaScriptSerializer().Deserialize<FacebookUser>(attributes);
            return new User()
            {
                FirstName = FacebookUser.first_name,
                MiddleName = FacebookUser.middle_name,
                LastName = FacebookUser.last_name,
                Locale = FacebookUser.locale,
                UserEmail = FacebookUser.email,
                AuthProvider = Provider,
                AuthToken=Token
            };
        }
    }

OAuth 基类（FacebookOAuth 派生的类）

  public abstract class Oauth
    {
        #region Method enum

        public enum Method
        {
            Get,
            Post,
            Delete
        } ;

        #endregion

        protected string AccessToken;
        protected string AttributesBaseUrl;
        protected string Authorize;
        protected string CallbackUrl;
        protected string ConsumerKey;
        protected string ConsumerSecret;
        public string Provider { get; protected set; }

        public string Token { get; set; }

        public virtual string AuthorizationLinkGet()
        {
            return
                string.Format(
                    "{0}?client_id={1}&redirect_uri={2}&scope=publish_stream,email,user_education_history,user_location",
                    Authorize, ConsumerKey, CallbackUrl);
        }

        public void AccessTokenGet(string authToken)
        {
            Token = authToken;
            string accessTokenUrl = string.Format("{0}?client_id={1}&redirect_uri={2}&client_secret={3}&code={4}",
                                                  AccessToken, ConsumerKey, CallbackUrl, ConsumerSecret, authToken);
            string response = WebRequest(Method.Get, accessTokenUrl, String.Empty);

            if (response.Length > 0)
            {
                //Store the returned access_token
                NameValueCollection qs = HttpUtility.ParseQueryString(response);

                if (qs["access_token"] != null)
                {
                    Token = qs["access_token"];
                }
            }
        }

        public string WebRequest(Method method, string url, string postData)
        {
            StreamWriter requestWriter;
            string responseData = string.Empty;

            var webRequest = System.Net.WebRequest.Create(url) as HttpWebRequest;
            if (webRequest != null)
            {
                webRequest.Method = method.ToString();
                webRequest.ServicePoint.Expect100Continue = false;
                webRequest.Timeout = 20000;

                if (method == Method.Post)
                {
                    webRequest.ContentType = "application/x-www-form-urlencoded";
                    //POST the data.
                    requestWriter = new StreamWriter(webRequest.GetRequestStream());
                    try
                    {
                        requestWriter.Write(postData);
                    }

                    finally
                    {
                        requestWriter.Close();
                    }
                }
                responseData = WebResponseGet(webRequest);
            }
            return responseData;
        }

        public string WebResponseGet(HttpWebRequest webRequest)
        {
            StreamReader responseReader = null;
            string responseData;
            try
            {
                responseReader = new StreamReader(webRequest.GetResponse().GetResponseStream());
                responseData = responseReader.ReadToEnd();
            }
            finally
            {
                if (webRequest != null) webRequest.GetResponse().GetResponseStream().Close();
                if (responseReader != null) responseReader.Close();
            }
            return responseData;
        }
    }