public static void RegisterAuth()
 {
     if (OpenAuth.AuthenticationClients.GetByProviderName("linkedin") == null)
     {
         var client = new LinkedInOAuth2Client("86h0tsh0fansqk", "GzIEj706ElSYEWT9");
         OpenAuth.AuthenticationClients.Add("linkedin", () => client);
     }
 }
        public IAuthenticationClient Build(ProviderConfigurationViewModel providerConfiguration)
        {
            string ClientId     = providerConfiguration.ProviderIdKey;
            string ClientSecret = providerConfiguration.ProviderSecret;
            var    client       = new LinkedInOAuth2Client(ClientId, ClientSecret);

            return(client);
        }
        public ActionResult ExternalLoginCallback(string returnUrl)
        {
            string ProviderName = OpenAuth.GetProviderNameFromCurrentRequest();

            if (ProviderName == null || ProviderName == "")
            {
                NameValueCollection nvs = Request.QueryString;
                if (nvs.Count > 0)
                {
                    if (nvs["state"] != null)
                    {
                        NameValueCollection provideritem = HttpUtility.ParseQueryString(nvs["state"]);
                        if (provideritem["__provider__"] != null)
                        {
                            ProviderName = provideritem["__provider__"];
                        }
                    }
                }
            }

            LinkedInOAuth2Client.RewriteRequest();

            var redirectUrl = Url.Action("ExternalLoginCallback", new { ReturnUrl = returnUrl });
            var authResult  = OpenAuth.VerifyAuthentication(redirectUrl);

            string providerDisplayName = OpenAuth.GetProviderDisplayName(ProviderName);

            if (!authResult.IsSuccessful)
            {
                return(Redirect(Url.Action("Index", "Home")));
            }
            else
            {
                //Get provider user details
                string providerUserId   = authResult.ProviderUserId;
                string providerUserName = authResult.UserName;
                string firstName        = null;
                string lastName         = null;
                string accessToken      = null;
                string email            = null;

                if (email == null && authResult.ExtraData.ContainsKey("email-address"))
                {
                    email = authResult.ExtraData["email-address"];
                }
                if (firstName == null && authResult.ExtraData.ContainsKey("first-name"))
                {
                    firstName = authResult.ExtraData["first-name"];
                }
                if (lastName == null && authResult.ExtraData.ContainsKey("last-name"))
                {
                    lastName = authResult.ExtraData["last-name"];
                }
                if (accessToken == null && authResult.ExtraData.ContainsKey("accesstoken"))
                {
                    accessToken = authResult.ExtraData["accesstoken"];
                }
                var userInfo = new List <object>();
                userInfo.Add(new
                {
                    ProviderDisplayName = providerDisplayName,
                    ProviderUserId      = providerUserId,
                    FirstName           = firstName,
                    LastName            = lastName,
                    Email       = email,
                    AccessToken = accessToken
                });

                return(RedirectToAction("RedirectToClient"));
            }
        }
        public IHttpActionResult ExternalLoginCallback(string code, string state)
        {
            string ProviderName = OpenAuth.GetProviderNameFromCurrentRequest();

            string username  = "";
            string returnURI = "";

            // For future user when we integrate with other oauth2 applications
            if (ProviderName == null || ProviderName == "")
            {
                var    nvs        = Request.GetQueryNameValuePairs();
                string stateParam = nvs.LastOrDefault(d => d.Key == "state").Value;
                if (state != null)
                {
                    // We need some variables from our state parameter.
                    NameValueCollection provideritem = HttpUtility.ParseQueryString(stateParam);
                    if (provideritem["__provider__"] != null)
                    {
                        ProviderName = provideritem["__provider__"];
                    }

                    if (provideritem["username"] != null)
                    {
                        username = provideritem["username"];
                        // Check to make sure username exists in database.
                        if (!_accountRepository.Exists(d => d.UserName == username))
                        {
                            return(Unauthorized());
                        }
                    }
                    // No username was provided.
                    else
                    {
                        return(Unauthorized());
                    }

                    if (provideritem["returnURI"] != null)
                    {
                        returnURI = provideritem["returnURI"];
                    }
                }
                else
                {
                    return(BadRequest());
                }
            }
            else
            {
                var    nvs        = Request.GetQueryNameValuePairs();
                string stateParam = nvs.LastOrDefault(d => d.Key == "state").Value;
                if (state != null)
                {
                    // We need some variables from our state parameter.
                    NameValueCollection provideritem = HttpUtility.ParseQueryString(stateParam);

                    if (provideritem["username"] != null)
                    {
                        username = provideritem["username"];
                        // Check to make sure username exists in database.
                        if (!_accountRepository.Exists(d => d.UserName == username))
                        {
                            return(Unauthorized());
                        }
                    }
                    // No username was provided.
                    else
                    {
                        return(Unauthorized());
                    }

                    if (provideritem["returnURI"] != null)
                    {
                        returnURI = provideritem["returnURI"];
                    }
                }
                else
                {
                    return(BadRequest());
                }
            }

            // Rewrite the request to include the requested headers and info for exchanging
            // the authorization code for a LinkedIn access token
            LinkedInOAuth2Client.RewriteRequest();

            // Now that the request has been rewritten, make the call and include the same callback uri provided earlier
            var authResult = OpenAuth.VerifyAuthentication(_externalCallBack);

            // For future user when we integrate with other oauth2 applications
            string providerDisplayName = OpenAuth.GetProviderDisplayName(ProviderName);

            //If the verification process failed
            if (!authResult.IsSuccessful)
            {
                return(Unauthorized());
            }
            else
            {
                //Get provider user details
                string providerUserId   = authResult.ProviderUserId;
                string providerUserName = authResult.UserName;
                string firstName        = null;
                string lastName         = null;
                string accessToken      = null;
                string email            = null;

                if (email == null && authResult.ExtraData.ContainsKey("email-address"))
                {
                    email = authResult.ExtraData["email-address"];
                }
                if (firstName == null && authResult.ExtraData.ContainsKey("first-name"))
                {
                    firstName = authResult.ExtraData["first-name"];
                }
                if (lastName == null && authResult.ExtraData.ContainsKey("last-name"))
                {
                    lastName = authResult.ExtraData["last-name"];
                }
                if (accessToken == null && authResult.ExtraData.ContainsKey("accesstoken"))
                {
                    accessToken = authResult.ExtraData["accesstoken"];
                }
                var userInfo = new List <object>();
                userInfo.Add(new
                {
                    ProviderDisplayName = providerDisplayName,
                    ProviderUserId      = providerUserId,
                    FirstName           = firstName,
                    LastName            = lastName,
                    Email       = email,
                    AccessToken = accessToken
                });

                try
                {
                    // If the given user already has a LinkedIn access token
                    if (_linkedInAccessTokenRepository.Exists(d => d.UserName == username, d => d.Account))
                    {
                        LinkedInAccessToken token = _linkedInAccessTokenRepository.GetSingle(d => d.UserName == username, d => d.Account);
                        token.Expired       = false;
                        token.TokenCreation = DateTime.UtcNow;
                        token.Value         = accessToken;
                        _linkedInAccessTokenRepository.Update(token);
                    }
                    else
                    {
                        LinkedInAccessToken token = new LinkedInAccessToken()
                        {
                            UserName      = username,
                            TokenCreation = DateTime.UtcNow,
                            Value         = accessToken
                        };
                        _linkedInAccessTokenRepository.Insert(token);
                    }
                } catch (Exception)
                {
                    return(InternalServerError());
                }

                if (returnURI != "null")
                {
                    // Try the given redirectUri
                    try
                    {
                        return(Redirect(returnURI + "?linkedin=success"));
                    }
                    // If it fails, go with the default
                    catch (Exception)
                    {
                        return(Redirect("http://localhost:8080/Home?linkedin=success"));
                    }
                }

                return(Redirect("http://localhost:8080/Home?linkedin=success"));
            }
        }