/// <summary>
/// This contructor is created when adding the Monitor the first time
/// </summary>
/// <param name="url"></param>
/// <param name="userAgent"></param>
public Monitor(string url, string userAgent, List<IMonitorRule> ruleList)
{
this.request = (HttpWebRequest)WebRequest.Create(url);
this.userAgent = userAgent;
this.lastUpdated = DateTime.Now;
this.url = url;
this.id = Guid.NewGuid();
this.running = false;
this.rules = new MonitorRules(this);
this.infoText = "Monitor hasn't been started yet";
this.pingNo = 0;
this.totaltPingTime = 0;
this.history = new List<MonitorHistoryItem>(historySize);
this.colorAsInt = Color.Blue.ToArgb();
this.RuleList = ruleList;
this.monitorPingResult = new MonitorPingResult();
//HttpRequest fields
this.statusCode = "";
this.statusDescription = "";
this.responseUri = "";
this.responseContentType = "";
this.responseHtml = "";
this.username = "";
this.password = "";
this.proxy = new WebProxy();
}
public MonitorPingResult Ping()
{
HttpWebRequest request = null;
MonitorPingResult result = null;
try
{
//************ SETUP REQUEST ****************//
result = new MonitorPingResult();
request = (HttpWebRequest)WebRequest.Create(Url);
request.Method = "HEAD"; //According to this, we should use HEAD in most cases: http://www.dscoduc.com/2009/04/choose-your-http-requests-wisely/
//************ HANDLE RESPONSE ****************//
// Create a new 'HttpWebRequest' Object to the mentioned URL.
OnPinging();
HttpWebResponse myHttpWebResponse = (HttpWebResponse)request.GetResponse();
OnPingCompleted();
// Check if StatusCode is OK, else throw exception
if (myHttpWebResponse.StatusCode != HttpStatusCode.OK)
throw new Exception(myHttpWebResponse.StatusDescription);
//Run through all the monitors plugins, so they can act upon the succeeded request
foreach (IMonitorPlugin plugin in Plugins)
{
plugin.Execute(this, request);
}
//Everything went good
result.Succeeded = true;
}
catch (Exception exp)
{
result.Error = exp;
result.Succeeded = false;
//Todo: Not suere this is the right place to put this
OnPingFailed();
}
finally
{
//Clean up
if (request != null)
request.Abort();
request = null;
}
return result;
}
