private void _proxyMoniter_Elapsed()
{
if (_currentProxy.WillExpireIn(CurrentHealthCheckInterval)) // 如果在下个检查时间片过期，则提前换新
{
Output("AutoProxyManager: Moniter Check expired");
UseNewProxy();
}
else
{
Output($"定期检查代理IP...", true);
var result = CheckIfHealthy();
if (result == HealthStatus.Healthy) // 健康检查
{
var dueTime = Math.Max(HealthCheckIntervalMSecondsMin, CurrentHealthCheckInterval -= HealthCheckIntervalMSecondsStepLength);
Output("AutoProxyManager: Moniter Check, proxy is Healthy, next dueTime " + dueTime.ToString());
_proxyMoniter.Change(dueTime, Timeout.Infinite);
}
else
{
// TODO: 其他情况也要处理
Output($"AutoProxyManager: Moniter Check Healthy result {result}");
UseNewProxy();
}
}
HideOutput();
}
private HealthStatus CheckIfHealthy()
{
if (_currentProxy == null || _currentProxy?.WillExpireIn() == true)
{
return(HealthStatus.ProxyNotReady);
}
if (!TokenManager.IsConnectInternet())
{
Output($"网络异常", true);
return(HealthStatus.NetworkNotHealthy);
}
// 先检查代理，不行就检查是否是网络问题，如果不是则加白名单（仅加一次），加了之后再从新测一遍
Output("AutoProxyManager: CheckIfHealthy " + _currentProxy.ToString());
string[] urls = new string[3] {
"http://www.baidu.com", "http://www.qq.com", "http://www.163.com"
};
IWebProxy proxy = new WebProxy(_currentProxy.IP, _currentProxy.Port);
foreach (var url in urls)
{
try
{
if (HttpGet(url, proxy) == HttpStatusCode.OK)
{
return(HealthStatus.Healthy);
}
}
catch (WebException ex)
{
Output("AutoProxyManager: CheckIfHealthy get with proxy " + url + ex.Message + ex.InnerException?.Message);
}
}
bool canNormallyHttpGet = false;
foreach (var url in urls)
{
try
{
if (HttpGet(url) == HttpStatusCode.OK)
{
canNormallyHttpGet = true;
break;
}
}
catch (WebException ex)
{
Output("AutoProxyManager: CheckIfHealthy no proxy get " + url + ex.Message + ex.InnerException?.Message);
canNormallyHttpGet = false;
}
}
if (!canNormallyHttpGet)
{
Output($"Http服务异常", true);
return(HealthStatus.HttpServiceNotHealthy);
}
Output($"当前代理IP {_currentProxy.ToString().ToMosaicString()}似乎不起作用", true);
return(HealthStatus.ProxyNotHealthy);
}
