/// <summary>
/// GetAuthenticationDetailAsync
/// </summary>
/// <returns></returns>
public async Task <OAuth2AccessResponse> GetAuthenticationDetailAsync()
{
var mailResponse = new OAuth2AccessResponse();
var token = string.Empty;
try
{
token = _clientConfig.MailDataStore.Get($"{_clientConfig.MailDataStore.StoreKey}_GMailToken") as string;
if (string.IsNullOrEmpty(token))
{
mailResponse.ErrorMessage = "Access Token has expired.";
}
if (string.IsNullOrWhiteSpace(token))
{
var refreshData = _clientConfig.MailDataStore.Get($"{_clientConfig.MailDataStore.StoreKey}_GMailRefreshData") as GoogleTokenResponse;
if (refreshData != null)
{
var refreshRquest = new GoogleRefreshTokenRequest()
{
ClientId = _clientConfig.OAuth2TokenizeRequestInfo.ClientId,
ClientSecret = _clientConfig.OAuth2TokenizeRequestInfo.ClientSecret,
RefreshToken = refreshData.RefreshToken
};
var result = await RefreshToken(_clientConfig.OAuth2TokenizeRequestInfo.TokenEndPointUrl, refreshRquest);
if (!string.IsNullOrWhiteSpace(result.AccessToken))
{
var tokenExpireTime = double.Parse(result.ExpiresIn);
var tokenExpireDate = DateTimeOffset.Now.AddSeconds(tokenExpireTime);
_clientConfig.MailDataStore.Add($"{_clientConfig.MailDataStore.StoreKey}_GMailToken", result.AccessToken, tokenExpireDate);
token = result.AccessToken;
}
}
}
if (string.IsNullOrWhiteSpace(token))
{
mailResponse.ErrorMessage += " Re-authenticate.";
}
}
catch (Exception ex)
{
mailResponse.ErrorMessage += ex.Message;
}
mailResponse.IsSucces = !string.IsNullOrWhiteSpace(token);
mailResponse.Token = token;
_token = token;
return(mailResponse);
}
/// <summary>
/// RefreshToken
/// </summary>
/// <param name="url"></param>
/// <param name="postData"></param>
/// <returns></returns>
private async Task <GoogleTokenResponse> RefreshToken(string url, GoogleRefreshTokenRequest postData)
{
var result = new GoogleTokenResponse();
var keyValues = new List <KeyValuePair <string, string> >();
keyValues.Add(new KeyValuePair <string, string>("refresh_token", postData.RefreshToken));
keyValues.Add(new KeyValuePair <string, string>("client_id", postData.ClientId));
keyValues.Add(new KeyValuePair <string, string>("client_secret", postData.ClientSecret));
keyValues.Add(new KeyValuePair <string, string>("grant_type", "refresh_token"));
HttpContent cont = new FormUrlEncodedContent(keyValues);
using (HttpClient client = new HttpClient())
{
using (HttpResponseMessage response = await client.PostAsync(url, cont))
{
using (HttpContent content = response.Content)
{
string data = await content.ReadAsStringAsync();
if (!string.IsNullOrWhiteSpace(data))
{
if (data.Contains("error"))
{
result.ErrorMessage = data;
}
else
{
result = JsonToObject.FromJson <GoogleTokenResponse>(data);
}
}
}
}
}
return(result);
}