by Keyvan Nayyeri via Keyvan Nayyeri on 7/28/2006 2:52:07 PM
I modified my ClientBlocker HTTPModule to handle some unexpected manners. I had a mistake in exception handling (actually I forgot to call a method on exceptions) which lets blocked clients to pass this blocker and see the site but by some small changes it should work correctly now. Another change is it returns 200 status for response if client is blocked.
void context_BeginRequest(object sender, EventArgs e)
{
try
string ClientIP =
this._Current.Request.UserHostAddress;
CheckIPs objChecker =
new CheckIPs(this._FilePath);
if (objChecker.CheckIP(ClientIP) == false)
if (this._CheckService == true)
// User wants to check by webservice
XmlDocument MyDoc = new XmlDocument();
string Query =
"http://api.hostip.info/?ip="
+ ClientIP;
MyDoc.Load(Query);
XmlNamespaceManager NSManager =
new XmlNamespaceManager
(MyDoc.NameTable);
NSManager.AddNamespace("hostip",
"http://www.hostip.info/api");
string XPathQuery
= "//hostip:countryAbbrev";
XmlNode Node = MyDoc.SelectSingleNode
(XPathQuery, NSManager);
string Country = null;
if (Node != null)
Country = Node.InnerText;
}// if
if (this._BlockedCountries.Contains(Country)
== true)
MyReturn(this._Current);
else
}// else
}// try
catch
// On any unexpected error we let visitor
// to visit website
}// catch
}// context_BegingRequest
Where MyReturn and ReturnOutput are:
private void MyReturn(HttpContext Context)
ReturnOutput(Context);
}
// Block, Block, Block!!
}// ReturnOutput
private void ReturnOutput(HttpContext Context)
Context.Response.StatusCode = 200;
Context.Response.SuppressContent = true;
Context.Response.End();
If you want to see full source code of main classes and sample configurations, check my old post here.
New version has been written only for ASP.NET 2.0. You can download it from here.
Original Post: ClientBlocker 1.1
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