Facebook是否在2017年3月改变了他们的应用开发者API？_Facebook_Asp.net Mvc 4_Facebook Graph Api_Oauth 2.0_Facebook Authentication

Facebook是否在2017年3月改变了他们的应用开发者API？

facebook asp.net-mvc-4 facebook-graph-api oauth-2.0

Facebook是否在2017年3月改变了他们的应用开发者API？,facebook,asp.net-mvc-4,facebook-graph-api,oauth-2.0,facebook-authentication,Facebook,Asp.net Mvc 4,Facebook Graph Api,Oauth 2.0,Facebook Authentication,嗯，我是一个新手，正在尝试开发一个web应用程序，其用户将通过Facebook进行身份验证。我正在MVC4.Net框架中开发应用程序。因为它的内部程序已经完成，所以我不需要做太多的编码。我刚刚将API ID和密钥放在范围内 OAuthWebSecurity.RegisterFacebookClient( appId: "750397051803327", appSecret: "**************************"

嗯，我是一个新手，正在尝试开发一个web应用程序，其用户将通过Facebook进行身份验证。我正在MVC4.Net框架中开发应用程序。因为它的内部程序已经完成，所以我不需要做太多的编码。我刚刚将

API ID

和

密钥

放在范围内

OAuthWebSecurity.RegisterFacebookClient(
                appId: "750397051803327",
                appSecret: "**************************");

这是我的申请表我的应用程序正确地从用户处获取了用户权限。但在获得权限后，它不会通过显示此类异常登录失败来提供用户的登录状态。我从代码端进行了调试，发现它将isLoggedin发送为false，因此我没有获得访问权限

然而，2天前我没有得到这样的例外。我得到的数据很好。这是我以前数据的快照

我还需要那个数据，但怎么做？我的应用程序仪表板是否需要更改？可能我在应用程序仪表板中做了一些更改。如果是，那么具体是什么？还有一件事我很困惑，产品的需求是什么？出于这个特殊原因，我是否需要从产品中获取数据。如果是，那么我需要哪一个，以及如何配置它以恢复我以前顺利获取数据的系统过程

如果我从

产品中添加App Center
，我将获得另外两个密钥，如账户套件App secret
和账户套件客户端令牌，我需要将这些密钥用于请求的案例。对于此类登录批准，产品
需要哪些产品
，或者根本不需要哪些产品

。我对如何配置应用程序感到非常困惑

请建议我如何解决这个问题，以及如何配置我的应用程序API。谢谢。

是的！！！！我找到了自己问题的解决办法。据Facebook开发者报告，自2017年3月28日起，所有Facebook日志均不起作用。他们还通过他们的开发者Facebook群组让我们知道。邮局在这儿

据一个开发团队说，我们发现 facebook身份验证刚刚停止工作（美国东部时间下午2点）我们管理的应用程序。应用程序未更改，应用程序未更新暂停的。。。。。不确定在何处报告，因为“状态”是全部好

根据我得到的答案。在

MVC4

中，每个人都写下自己的

AppID

和

SecurityCode

。由于facebook GRAPH API的更改，以前的链接已断开。因此，每个人都需要更改RegisterFacebookClientCals。但是这个类在.Net库中是一个密封的类，所以任何人都不能扩展或覆盖它。因此，我们需要使用

包装器类。让我们考虑我的包装类是“代码> FoeBooclitV2DoT3所以我的类将是
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Web;
using DotNetOpenAuth.AspNet.Clients;
using Newtonsoft.Json;

public class FacebookClientV2Dot3 : OAuth2Client
{
    #region Constants and Fields

    /// <summary>
    /// The authorization endpoint.
    /// </summary>
    private const string AuthorizationEndpoint = "https://www.facebook.com/dialog/oauth";

    /// <summary>
    /// The token endpoint.
    /// </summary>
    private const string TokenEndpoint = "https://graph.facebook.com/oauth/access_token";

    /// <summary>
    /// The user info endpoint.
    /// </summary>
    private const string UserInfoEndpoint = "https://graph.facebook.com/me";

    /// <summary>
    /// The app id.
    /// </summary>
    private readonly string _appId;

    /// <summary>
    /// The app secret.
    /// </summary>
    private readonly string _appSecret;

    /// <summary>
    /// The requested scopes.
    /// </summary>
    private readonly string[] _requestedScopes;

    #endregion

    /// <summary>
    /// Creates a new Facebook OAuth2 client, requesting the default "email" scope.
    /// </summary>
    /// <param name="appId">The Facebook App Id</param>
    /// <param name="appSecret">The Facebook App Secret</param>
    public FacebookClient(string appId, string appSecret)
        : this(appId, appSecret, new[] { "email" }) { }

    /// <summary>
    /// Creates a new Facebook OAuth2 client.
    /// </summary>
    /// <param name="appId">The Facebook App Id</param>
    /// <param name="appSecret">The Facebook App Secret</param>
    /// <param name="requestedScopes">One or more requested scopes, passed without the base URI.</param>
    public FacebookClient(string appId, string appSecret, params string[] requestedScopes)
        : base("facebook")
    {
        if (string.IsNullOrWhiteSpace(appId))
            throw new ArgumentNullException("appId");

        if (string.IsNullOrWhiteSpace(appSecret))
            throw new ArgumentNullException("appSecret");

        if (requestedScopes == null)
            throw new ArgumentNullException("requestedScopes");

        if (requestedScopes.Length == 0)
            throw new ArgumentException("One or more scopes must be requested.", "requestedScopes");

        _appId = appId;
        _appSecret = appSecret;
        _requestedScopes = requestedScopes;
    }

    protected override Uri GetServiceLoginUrl(Uri returnUrl)
    {
        var state = string.IsNullOrEmpty(returnUrl.Query) ? string.Empty : returnUrl.Query.Substring(1);

        return BuildUri(AuthorizationEndpoint, new NameValueCollection
                {
                    { "client_id", _appId },
                    { "scope", string.Join(" ", _requestedScopes) },
                    { "redirect_uri", returnUrl.GetLeftPart(UriPartial.Path) },
                    { "state", state },
                });
    }

    protected override IDictionary<string, string> GetUserData(string accessToken)
    {
        var uri = BuildUri(UserInfoEndpoint, new NameValueCollection { { "access_token", accessToken } });

        var webRequest = (HttpWebRequest)WebRequest.Create(uri);

        using (var webResponse = webRequest.GetResponse())
        using (var stream = webResponse.GetResponseStream())
        {
            if (stream == null)
                return null;

            using (var textReader = new StreamReader(stream))
            {
                var json = textReader.ReadToEnd();
                var extraData = JsonConvert.DeserializeObject<Dictionary<string, object>>(json);
                var data = extraData.ToDictionary(x => x.Key, x => x.Value.ToString());

                data.Add("picture", string.Format("https://graph.facebook.com/{0}/picture", data["id"]));

                return data;
            }
        }
    }

    protected override string QueryAccessToken(Uri returnUrl, string authorizationCode)
    {
        var uri = BuildUri(TokenEndpoint, new NameValueCollection
                {
                    { "code", authorizationCode },
                    { "client_id", _appId },
                    { "client_secret", _appSecret },
                    { "redirect_uri", returnUrl.GetLeftPart(UriPartial.Path) },
                });

        var webRequest = (HttpWebRequest)WebRequest.Create(uri);
        string accessToken = null;
        HttpWebResponse response = (HttpWebResponse)webRequest.GetResponse();

        // handle response from FB 
        // this will not be a url with params like the first request to get the 'code'
        Encoding rEncoding = Encoding.GetEncoding(response.CharacterSet);

        using (StreamReader sr = new StreamReader(response.GetResponseStream(), rEncoding))
        {
            var serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
            var jsonObject = serializer.DeserializeObject(sr.ReadToEnd());
            var jConvert = JsonConvert.DeserializeObject(JsonConvert.SerializeObject(jsonObject));

            Dictionary<string, object> desirializedJsonObject = JsonConvert.DeserializeObject<Dictionary<string, object>>(jConvert.ToString());
            accessToken = desirializedJsonObject["access_token"].ToString();
        }
        return accessToken;
    }

    private static Uri BuildUri(string baseUri, NameValueCollection queryParameters)
    {
        var keyValuePairs = queryParameters.AllKeys.Select(k => HttpUtility.UrlEncode(k) + "=" + HttpUtility.UrlEncode(queryParameters[k]));
        var qs = String.Join("&", keyValuePairs);

        var builder = new UriBuilder(baseUri) { Query = qs };
        return builder.Uri;
    }

    /// <summary>
    /// Facebook works best when return data be packed into a "state" parameter.
    /// This should be called before verifying the request, so that the url is rewritten to support this.
    /// </summary>
    public static void RewriteRequest()
    {
        var ctx = HttpContext.Current;

        var stateString = HttpUtility.UrlDecode(ctx.Request.QueryString["state"]);
        if (stateString == null || !stateString.Contains("__provider__=facebook"))
            return;

        var q = HttpUtility.ParseQueryString(stateString);
        q.Add(ctx.Request.QueryString);
        q.Remove("state");

        ctx.RewritePath(ctx.Request.Path + "?" + q);
    }
}

然后一切都成功了。您的facebook登录将恢复到以前的状态
但是，您可能会面临有关此新API而不是以前的API的新问题，问题是IP白名单
。这样地。希望你只需要这个。快乐的编码。
根据我得到的解决方案。在MVC4
中，每个人都写下自己的AppID
和SecurityCode
。由于facebook GRAPH API的更改，以前的链接已断开。因此，每个人都需要更改RegisterFacebookClient
Cals。但是这个类在.Net库中是一个密封的类，所以任何人都不能扩展或覆盖它。因此，我们需要使用包装器类。让我们考虑我的包装类是“代码> FoeBooclitV2DoT3所以我的类将是
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Web;
using DotNetOpenAuth.AspNet.Clients;
using Newtonsoft.Json;

public class FacebookClientV2Dot3 : OAuth2Client
{
    #region Constants and Fields

    /// <summary>
    /// The authorization endpoint.
    /// </summary>
    private const string AuthorizationEndpoint = "https://www.facebook.com/dialog/oauth";

    /// <summary>
    /// The token endpoint.
    /// </summary>
    private const string TokenEndpoint = "https://graph.facebook.com/oauth/access_token";

    /// <summary>
    /// The user info endpoint.
    /// </summary>
    private const string UserInfoEndpoint = "https://graph.facebook.com/me";

    /// <summary>
    /// The app id.
    /// </summary>
    private readonly string _appId;

    /// <summary>
    /// The app secret.
    /// </summary>
    private readonly string _appSecret;

    /// <summary>
    /// The requested scopes.
    /// </summary>
    private readonly string[] _requestedScopes;

    #endregion

    /// <summary>
    /// Creates a new Facebook OAuth2 client, requesting the default "email" scope.
    /// </summary>
    /// <param name="appId">The Facebook App Id</param>
    /// <param name="appSecret">The Facebook App Secret</param>
    public FacebookClient(string appId, string appSecret)
        : this(appId, appSecret, new[] { "email" }) { }

    /// <summary>
    /// Creates a new Facebook OAuth2 client.
    /// </summary>
    /// <param name="appId">The Facebook App Id</param>
    /// <param name="appSecret">The Facebook App Secret</param>
    /// <param name="requestedScopes">One or more requested scopes, passed without the base URI.</param>
    public FacebookClient(string appId, string appSecret, params string[] requestedScopes)
        : base("facebook")
    {
        if (string.IsNullOrWhiteSpace(appId))
            throw new ArgumentNullException("appId");

        if (string.IsNullOrWhiteSpace(appSecret))
            throw new ArgumentNullException("appSecret");

        if (requestedScopes == null)
            throw new ArgumentNullException("requestedScopes");

        if (requestedScopes.Length == 0)
            throw new ArgumentException("One or more scopes must be requested.", "requestedScopes");

        _appId = appId;
        _appSecret = appSecret;
        _requestedScopes = requestedScopes;
    }

    protected override Uri GetServiceLoginUrl(Uri returnUrl)
    {
        var state = string.IsNullOrEmpty(returnUrl.Query) ? string.Empty : returnUrl.Query.Substring(1);

        return BuildUri(AuthorizationEndpoint, new NameValueCollection
                {
                    { "client_id", _appId },
                    { "scope", string.Join(" ", _requestedScopes) },
                    { "redirect_uri", returnUrl.GetLeftPart(UriPartial.Path) },
                    { "state", state },
                });
    }

    protected override IDictionary<string, string> GetUserData(string accessToken)
    {
        var uri = BuildUri(UserInfoEndpoint, new NameValueCollection { { "access_token", accessToken } });

        var webRequest = (HttpWebRequest)WebRequest.Create(uri);

        using (var webResponse = webRequest.GetResponse())
        using (var stream = webResponse.GetResponseStream())
        {
            if (stream == null)
                return null;

            using (var textReader = new StreamReader(stream))
            {
                var json = textReader.ReadToEnd();
                var extraData = JsonConvert.DeserializeObject<Dictionary<string, object>>(json);
                var data = extraData.ToDictionary(x => x.Key, x => x.Value.ToString());

                data.Add("picture", string.Format("https://graph.facebook.com/{0}/picture", data["id"]));

                return data;
            }
        }
    }

    protected override string QueryAccessToken(Uri returnUrl, string authorizationCode)
    {
        var uri = BuildUri(TokenEndpoint, new NameValueCollection
                {
                    { "code", authorizationCode },
                    { "client_id", _appId },
                    { "client_secret", _appSecret },
                    { "redirect_uri", returnUrl.GetLeftPart(UriPartial.Path) },
                });

        var webRequest = (HttpWebRequest)WebRequest.Create(uri);
        string accessToken = null;
        HttpWebResponse response = (HttpWebResponse)webRequest.GetResponse();

        // handle response from FB 
        // this will not be a url with params like the first request to get the 'code'
        Encoding rEncoding = Encoding.GetEncoding(response.CharacterSet);

        using (StreamReader sr = new StreamReader(response.GetResponseStream(), rEncoding))
        {
            var serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
            var jsonObject = serializer.DeserializeObject(sr.ReadToEnd());
            var jConvert = JsonConvert.DeserializeObject(JsonConvert.SerializeObject(jsonObject));

            Dictionary<string, object> desirializedJsonObject = JsonConvert.DeserializeObject<Dictionary<string, object>>(jConvert.ToString());
            accessToken = desirializedJsonObject["access_token"].ToString();
        }
        return accessToken;
    }

    private static Uri BuildUri(string baseUri, NameValueCollection queryParameters)
    {
        var keyValuePairs = queryParameters.AllKeys.Select(k => HttpUtility.UrlEncode(k) + "=" + HttpUtility.UrlEncode(queryParameters[k]));
        var qs = String.Join("&", keyValuePairs);

        var builder = new UriBuilder(baseUri) { Query = qs };
        return builder.Uri;
    }

    /// <summary>
    /// Facebook works best when return data be packed into a "state" parameter.
    /// This should be called before verifying the request, so that the url is rewritten to support this.
    /// </summary>
    public static void RewriteRequest()
    {
        var ctx = HttpContext.Current;

        var stateString = HttpUtility.UrlDecode(ctx.Request.QueryString["state"]);
        if (stateString == null || !stateString.Contains("__provider__=facebook"))
            return;

        var q = HttpUtility.ParseQueryString(stateString);
        q.Add(ctx.Request.QueryString);
        q.Remove("state");

        ctx.RewritePath(ctx.Request.Path + "?" + q);
    }
}

然后一切都成功了。您的facebook登录将恢复到以前的状态
但是，您可能会面临有关此新API而不是以前的API的新问题，问题是IP白名单
。这样地。希望你只需要这个。快乐编码