private void LogHttpResponse(HttpResponseMessage request)
{
_logger?.LogResponse(request);
}
/// <summary>
/// Login using given credentials asynchronously
/// </summary>
/// <returns>
/// Success --> is succeed
/// TwoFactorRequired --> requires 2FA login.
/// BadPassword --> Password is wrong
/// InvalidUser --> User/phone number is wrong
/// Exception --> Something wrong happened
/// </returns>
public async Task <IResult <InstaLoginResult> > LoginAsync()
{
ValidateUser();
ValidateRequestMessage();
try
{
var firstResponse = await _httpRequestProcessor.GetAsync(_httpRequestProcessor.Client.BaseAddress);
var cookies =
_httpRequestProcessor.HttpHandler.CookieContainer.GetCookies(_httpRequestProcessor.Client
.BaseAddress);
_logger?.LogResponse(firstResponse);
var csrftoken = cookies[InstaApiConstants.CSRFTOKEN]?.Value ?? String.Empty;
_user.CsrfToken = csrftoken;
var instaUri = UriCreator.GetLoginUri();
var signature =
$"{_httpRequestProcessor.RequestMessage.GenerateSignature(InstaApiConstants.IG_SIGNATURE_KEY)}.{_httpRequestProcessor.RequestMessage.GetMessageString()}";
var fields = new Dictionary <string, string>
{
{ InstaApiConstants.HEADER_IG_SIGNATURE, signature },
{ InstaApiConstants.HEADER_IG_SIGNATURE_KEY_VERSION, InstaApiConstants.IG_SIGNATURE_KEY_VERSION }
};
var request = HttpHelper.GetDefaultRequest(HttpMethod.Post, instaUri, _deviceInfo);
request.Content = new FormUrlEncodedContent(fields);
request.Properties.Add(InstaApiConstants.HEADER_IG_SIGNATURE, signature);
request.Properties.Add(InstaApiConstants.HEADER_IG_SIGNATURE_KEY_VERSION, InstaApiConstants.IG_SIGNATURE_KEY_VERSION);
var response = await _httpRequestProcessor.SendAsync(request);
var json = await response.Content.ReadAsStringAsync();
if (response.StatusCode != HttpStatusCode.OK) //If the password is correct BUT 2-Factor Authentication is enabled, it will still get a 400 error (bad request)
{
//Then check it
var loginFailReason = JsonConvert.DeserializeObject <InstaLoginBaseResponse>(json);
if (loginFailReason.InvalidCredentials)
{
return(Result.Fail("Invalid Credentials",
loginFailReason.ErrorType == "bad_password"
? InstaLoginResult.BadPassword
: InstaLoginResult.InvalidUser));
}
if (loginFailReason.TwoFactorRequired)
{
_twoFactorInfo = loginFailReason.TwoFactorLoginInfo;
//2FA is required!
return(Result.Fail("Two Factor Authentication is required", InstaLoginResult.TwoFactorRequired));
}
return(Result.UnExpectedResponse <InstaLoginResult>(response, json));
}
var loginInfo = JsonConvert.DeserializeObject <InstaLoginResponse>(json);
IsUserAuthenticated = loginInfo.User?.UserName.ToLower() == _user.UserName.ToLower();
var converter = ConvertersFabric.Instance.GetUserShortConverter(loginInfo.User);
_user.LoggedInUder = converter.Convert();
_user.RankToken = $"{_user.LoggedInUder.Pk}_{_httpRequestProcessor.RequestMessage.phone_id}";
return(Result.Success(InstaLoginResult.Success));
}
catch (Exception exception)
{
LogException(exception);
return(Result.Fail(exception, InstaLoginResult.Exception));
}
finally
{
InvalidateProcessors();
}
}