Facebook Login Unknown Error

Hey Guys I found solution

Follow steps for the Facebook Extension.


step 1:   Update this on web.webconfig

<dependentAssembly>
        <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-9.0.0.0" newVersion="9.0.0.0" />
      </dependentAssembly>

<dependentAssembly>
        <assemblyIdentity name="Microsoft.Owin" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-3.1.0.0" newVersion="3.1.0.0" />
      </dependentAssembly>
       <dependentAssembly>
        <assemblyIdentity name="Microsoft.Owin.Security" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-3.1.0.0" newVersion="3.1.0.0" />
      </dependentAssembly>

step 2: Add this new class

public class FacebookOAuth2Client : 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 FacebookOAuth2Client(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 FacebookOAuth2Client(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);
        }
    }

Step: 3 Update File in FacebookProviderAuthorizer.cs

replace FacebookClient with your class FacebookOAuth2Client



Hope this will help all of you

Let me know if i miss anything.

Hey Guys I found solution

Follow steps for the Facebook Extension.


step 1:   Update this on web.webconfig

<dependentAssembly>
        <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-9.0.0.0" newVersion="9.0.0.0" />
      </dependentAssembly>

<dependentAssembly>
        <assemblyIdentity name="Microsoft.Owin" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-3.1.0.0" newVersion="3.1.0.0" />
      </dependentAssembly>
       <dependentAssembly>
        <assemblyIdentity name="Microsoft.Owin.Security" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-3.1.0.0" newVersion="3.1.0.0" />
      </dependentAssembly>

step 2: Add this new class

public class FacebookOAuth2Client : 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 FacebookOAuth2Client(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 FacebookOAuth2Client(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);
        }
    }

Step: 3 Update File in FacebookProviderAuthorizer.cs

replace FacebookClient with your class FacebookOAuth2Client



Hope this will help all of you

Let me know if i miss anything.


Thanks

Hey Guys I found solution

Follow steps for the Facebook Extension.


step 1:   Update this on web.webconfig

<dependentAssembly>
        <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-9.0.0.0" newVersion="9.0.0.0" />
      </dependentAssembly>

<dependentAssembly>
        <assemblyIdentity name="Microsoft.Owin" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-3.1.0.0" newVersion="3.1.0.0" />
      </dependentAssembly>
       <dependentAssembly>
        <assemblyIdentity name="Microsoft.Owin.Security" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-3.1.0.0" newVersion="3.1.0.0" />
      </dependentAssembly>

step 2: Add this new class

public class FacebookOAuth2Client : 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 FacebookOAuth2Client(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 FacebookOAuth2Client(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);
        }
    }

Step: 3 Update File in FacebookProviderAuthorizer.cs

replace FacebookClient with your class FacebookOAuth2Client



Hope this will help all of you

Let me know if i miss anything.


Thanks

Hi,

That would work if my nopcommerce version was >3.0..

Thank you.

FacebookApplication.VerifyAuthentication(_httpContext, GenerateLocalCallbackUri())


_httpcontext user: Name shows null value

this method return Successful value as false

Please help me


I'm working on localhost

I also set domain. Redirected url


I found some solution that say facebook hase change Microsoft.Owin version to rc1.  

I have api also included in nop plugin


Please let me update if anyone have solution

Anyone could help to compile the solution for v3.9?

Anyone could help to compile the solution for v3.9?

https://drive.google.com/open?id=0B9iAbtNvK8eIYjdvbmo3YkxKZm8

I hope that will help you ....