public ActionResult Index()
{
KaribouAlpha.DAL.KaribouAlphaContext db = new DAL.KaribouAlphaContext();
GoogleAuthClient googleClient = db.GoogleAuthClients.SingleOrDefault(_google => _google.Active);
if (googleClient != null)
{
string loginUrl = "https://accounts.google.com/o/oauth2/auth?";
string scope = "email%20profile";
StringBuilder urlBuilder = new StringBuilder(loginUrl);
urlBuilder.Append("client_id=" + googleClient.ClientId);
urlBuilder.Append("&redirect_uri=" + googleClient.RedirectUrl);
urlBuilder.Append("&response_type=" + "code");
urlBuilder.Append("&scope=" + scope);
urlBuilder.Append("&access_type=" + "offline");
urlBuilder.Append("&state=" + System.Guid.NewGuid().ToString());
return(Redirect(urlBuilder.ToString()));
}
ViewBag.EmailError = true;
return(View("CallBack"));
}
public async Task <ActionResult> CallBack(string state, string code)
{
ViewBag.EmailError = false;
string path = "";
bool writeLog = false;
if (System.Configuration.ConfigurationManager.AppSettings["DebugLogFile"] != null)
{
if (string.IsNullOrEmpty(System.Configuration.ConfigurationManager.AppSettings["DebugLogFile"].ToString()) == false)
{
path = System.Configuration.ConfigurationManager.AppSettings["DebugLogFile"].ToString();
writeLog = true;
}
}
KaribouAlpha.DAL.KaribouAlphaContext db = new DAL.KaribouAlphaContext();
GoogleAuthClient googleClient = db.GoogleAuthClients.SingleOrDefault(_google => _google.Active);
if (googleClient == null || (!string.IsNullOrEmpty(code) && code.ToLower() == "error"))
{
if (writeLog && googleClient == null)
{
System.IO.File.AppendAllText(path, Environment.NewLine + System.DateTime.Now.ToString() + " google client is not setup..");
}
else if (writeLog)
{
System.IO.File.AppendAllText(path, Environment.NewLine + System.DateTime.Now.ToString() + "user may be declined code is error...");
}
ViewBag.EmailError = true;
return(View());
}
try
{
if (writeLog)
{
System.IO.File.AppendAllText(path, Environment.NewLine + System.DateTime.Now.ToString() + "- google - start getting token from code....");
}
System.Net.HttpWebRequest webRequest = (System.Net.HttpWebRequest)System.Net.WebRequest.Create("https://accounts.google.com/o/oauth2/token");
webRequest.Method = "POST";
string parameters = "code=" + code + "&client_id=" + googleClient.ClientId + "&client_secret=" + googleClient.ClientSecret + "&redirect_uri=" + googleClient.RedirectUrl + "&grant_type=authorization_code";
byte[] byteArray = Encoding.UTF8.GetBytes(parameters);
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.ContentLength = byteArray.Length;
Stream postStream = webRequest.GetRequestStream();
postStream.Write(byteArray, 0, byteArray.Length);
postStream.Close();
WebResponse response = webRequest.GetResponse();
postStream = response.GetResponseStream();
StreamReader reader = new StreamReader(postStream);
string responseFromServer = reader.ReadToEnd();
GooglePlusAccessToken responseToken = JsonConvert.DeserializeObject <GooglePlusAccessToken>(responseFromServer);
if (responseToken != null)
{
string accessToken = string.Empty;
accessToken = responseToken.access_token;
if (!string.IsNullOrEmpty(accessToken))
{
Task <GoogleUserOutputData> data = GetGoogleUserInfo(accessToken);
if (data != null && data.Result != null)
{
User user = await this._authenticationRepository.FindAsync(new Microsoft.AspNet.Identity.UserLoginInfo("Google", data.Result.id));
bool hasRegistered = user != null;
bool hasCervitUser = false;
long existingCervitUserId = this._authenticationRepository.FindUserExists(data.Result.email);
hasCervitUser = (existingCervitUserId > 0);
if (hasRegistered)
{
hasCervitUser = false;
}
ViewBag.hascervituser = hasCervitUser.ToString();
ViewBag.haslocalaccount = hasRegistered.ToString();
ViewBag.provider = "Google";
ViewBag.external_user_name = data.Result.id;
ViewBag.external_access_token = accessToken;
ViewBag.email = data.Result.email;
}
}
}
}
catch (Exception ex)
{
if (writeLog)
{
System.IO.File.AppendAllText(path, Environment.NewLine + System.DateTime.Now.ToString() + "- google - error during getting token from code...." + ex.ToString());
}
ViewBag.EmailError = true;
}
return(View());
}
