/// <summary>
/// RefreshAccessTokenAsync
/// </summary>
/// <param name="apiClient"></param>
/// <param name="endpointSettings"></param>
/// <returns></returns>
/// <exception cref="ApiException"></exception>
public static async Task <bool> RefreshAccessTokenAsync(IApiClient apiClient, EndpointSettings?endpointSettings)
{
if (UserPreferences.AccessToken.IsNullOrEmpty())
{
return(false);
}
JwtEndpointSetting jwtEndpoint = endpointSettings == null?apiClient.GetDefaultJwtEndpointSetting() : endpointSettings.JwtEndpoint;
string accessTokenHashKey = SecurityUtil.GetHash(UserPreferences.AccessToken);
//这个AccessToken不久前刷新过
if (!_requestLimiter.NoWaitLock(nameof(RefreshAccessTokenAsync), accessTokenHashKey, TimeSpan.FromSeconds(jwtEndpoint.RefreshIntervalSeconds)))
{
//可能已经有人在刷新，等他刷新完
if (!await _lastRefreshResultsAccessSemaphore.WaitAsync(TimeSpan.FromSeconds(10)).ConfigureAwait(false))
{
//等待失败
BaseApplication.ExceptionHandler(ApiExceptions.TokenRefreshError(cause: "AccessToken 有人刷新过，等待获取结果失败。"));
return(false);
}
try
{
if (_lastRefreshResults.TryGetValue(accessTokenHashKey, out bool lastRefreshResult))
{
return(lastRefreshResult);
}
BaseApplication.ExceptionHandler(ApiExceptions.TokenRefreshError(cause: "AccessToken 有人刷新过，但结果获取为空。"));
return(false);
}
finally
{
_lastRefreshResultsAccessSemaphore.Release();
}
}
//开始刷新，其他想取结果的人等着
await _lastRefreshResultsAccessSemaphore.WaitAsync().ConfigureAwait(false);
try
{
if (UserPreferences.RefreshToken.IsNotNullOrEmpty())
{
RefreshAccessTokenRequest refreshRequest = new RefreshAccessTokenRequest(
jwtEndpoint.EndpointName !,
jwtEndpoint.Version !,
HttpMethod.Get,
jwtEndpoint.ResourceName !,
UserPreferences.AccessToken,
UserPreferences.RefreshToken);
AccessTokenResource?resource = await apiClient.GetFirstOrDefaultAsync(refreshRequest).ConfigureAwait(false);
if (resource != null)
{
_lastRefreshResults.Clear();
_lastRefreshResults[accessTokenHashKey] = true;
OnRefreshSucceed(resource);
return(true);
}
}
//刷新失败
_lastRefreshResults.Clear();
_lastRefreshResults[accessTokenHashKey] = false;
OnRefreshFailed();
return(false);
}
catch
{
//刷新失败
_lastRefreshResults.Clear();
_lastRefreshResults[accessTokenHashKey] = false;
OnRefreshFailed();
throw;
}
finally
{
_lastRefreshResultsAccessSemaphore.Release();
}
}
