protected override async Task<bool> RefreshAccount(Account account)
{
lock (locker) {
if (refreshTask == null || refreshTask.IsCompleted)
refreshTask = RefreshToken (account);
}
return await refreshTask;
}
protected override async Task RefreshAccount(Account account)
{
if (refreshTask == null || refreshTask.IsCompleted)
refreshTask = RefreshToken(account);
await refreshTask;
}
protected async Task<bool> RefreshToken(Account accaccount)
{
try
{
var account = accaccount as OAuthAccount;
if (account == null)
throw new Exception("Invalid Account");
var message = new HttpRequestMessage (HttpMethod.Post, TokenUrl) {
Content = new FormUrlEncodedContent (new Dictionary<string, string>
{
{"grant_type","refresh_token"},
{"refresh_token",account.RefreshToken},
{"client_id",ClientId},
{"client_secret",ClientSecret},
}),
Headers = {
{"Accept","application/json"}
}
};
var reply = await Client.SendAsync (message);
var resp = await reply.Content.ReadAsStringAsync();
var result = Deserialize<OauthResponse>(resp);
if (!string.IsNullOrEmpty(result.Error))
{
if (string.IsNullOrWhiteSpace(account.RefreshToken) || result.Error == "invalid_grant" || result.ErrorDescription.IndexOf("revoked", StringComparison.CurrentCultureIgnoreCase) >= 0)
{
account.Token = "";
account.RefreshToken = "";
account.ExpiresIn = 1;
SaveAccount(account);
return await Authenticate() != null;
}
else
throw new Exception(result.ErrorDescription);
}
if (!string.IsNullOrEmpty(result.RefreshToken))
account.RefreshToken = result.RefreshToken;
account.TokenType = result.TokenType;
account.Token = result.AccessToken;
account.ExpiresIn = result.ExpiresIn;
account.Created = DateTime.UtcNow;
if (account == CurrentAccount)
await OnAccountUpdated(account);
CurrentAccount = account;
SaveAccount(account);
return true;
}
catch (Exception ex)
{
OnException(this, ex);
}
return false;
}
protected async Task RefreshToken(Account accaccount)
{
try
{
var account = accaccount as OAuthAccount;
if (account == null)
throw new Exception("Invalid Account");
var reply = await Client.PostAsync(TokenUrl, new FormUrlEncodedContent(new Dictionary<string, string>
{
{"grant_type","refresh_token"},
{"refresh_token",account.RefreshToken},
{"client_id",ClientId},
{"client_secret",ClientSecret},
}));
var resp = await reply.Content.ReadAsStringAsync();
var result = Deserialize<OauthResponse>(resp);
if (!string.IsNullOrEmpty(result.Error))
{
if (string.IsNullOrWhiteSpace(account.RefreshToken) || result.Error == "invalid_grant" || result.ErrorDescription.IndexOf("revoked", StringComparison.CurrentCultureIgnoreCase) >= 0)
{
account.Token = "";
account.RefreshToken = "";
account.ExpiresIn = 1;
SaveAccount(account);
await Authenticate();
return;
}
else
throw new Exception(result.ErrorDescription);
}
if (!string.IsNullOrEmpty(result.RefreshToken))
account.RefreshToken = result.RefreshToken;
account.TokenType = result.TokenType;
account.Token = result.AccessToken;
account.ExpiresIn = result.ExpiresIn;
account.Created = DateTime.UtcNow;
if (account == CurrentAccount)
await OnAccountUpdated(account);
CurrentAccount = account;
SaveAccount(account);
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}