private void Filter(ExceptionFilterEventArgs e)
{
var exception = e.Exception.GetBaseException();
var httpException = exception as HttpException;
if (HttpContext.Current.Request.IsLocal)
{
e.Dismiss();
return;
}
// User hit stop/esc while the page was posting back
if (exception is HttpException && exception.Message.ToLower().Contains("the client disconnected.") ||
exception.Message.ToLower().Contains("the remote host closed the connection."))
{
e.Dismiss();
return;
}
// User hit stop while posting back and thew this error
if (exception is ViewStateException && exception.Message.ToLower().Contains("invalid viewstate. client ip:"))
{
e.Dismiss();
return;
}
}
void ErrorMail_Filtering(object sender, ExceptionFilterEventArgs args)
{
if (args.Exception is ArgumentException)
{
args.Dismiss();
return;
}
var context = (HttpContext)args.Context;
if (context != null && context.Request.UserAgent != null)
{
if (context.Request.UserAgent == "Test Certificate Info" && args.Exception is System.Web.HttpException)
{
args.Dismiss();
return;
}
if (context.Request.UserAgent.Contains("ZmEu"))
{
args.Dismiss();
return;
}
if (context.Request.UserAgent.Contains("Googlebot"))
{
args.Dismiss();
return;
}
}
Filter(args);
}
void ErrorLog_Filtering(object sender, ExceptionFilterEventArgs e)
{
if (e.Exception.GetBaseException() is HttpException && ((HttpException)e.Exception.GetBaseException()).GetHttpCode() == 404)
{
e.Dismiss();
}
}
private void ErrorLog_Filtering(object sender, ExceptionFilterEventArgs e)
{
if (e.Exception is System.Threading.ThreadAbortException)
{
e.Dismiss();
}
}
//private static IWindsorContainer InitializeServiceLocator()
//{
// //IWindsorContainer container = new WindsorContainer();
// //ControllerBuilder.Current.SetControllerFactory(new WindsorControllerFactory(container));
// //container.RegisterControllers(typeof(HomeController).Assembly);
// //ComponentRegistrar.AddComponentsTo(container);
// //ServiceLocator.SetLocatorProvider(() => new WindsorServiceLocator(container));
// //return container;
//}
/// <summary>
/// ELMAH filtering for the mail log
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void ErrorMail_Filtering(object sender, ExceptionFilterEventArgs e)
{
if (e.Exception.GetBaseException() is HttpException)
{
e.Dismiss();
}
}
protected virtual void OnErrorModuleFiltering(object sender, ExceptionFilterEventArgs args)
{
if (args == null)
{
throw new ArgumentNullException("args");
}
if (args.Exception == null)
{
throw new ArgumentException(null, "args");
}
try
{
if (Assertion.Test(new AssertionHelperContext(sender, args.Exception, args.Context)))
{
args.Dismiss();
}
}
catch (Exception e)
{
Trace.WriteLine(e);
throw;
}
}
public void ErrorMail_Filtering(object sender, ExceptionFilterEventArgs e)
{
var httpException = e.Exception as HttpException;
if (httpException != null && httpException.GetHttpCode() == 404 || Debugger.IsAttached)
{
e.Dismiss();
}
}
public void ErrorMail_Filtering(object sender, ExceptionFilterEventArgs e)
{
var httpException = e.Exception as JavaScriptException;
if (httpException != null)
{
e.Dismiss();
}
}
private void Filter404Errors(ExceptionFilterEventArgs args)
{
if (args.Exception.GetBaseException() is HttpException)
{
var httpException = args.Exception.GetBaseException() as HttpException;
if (httpException != null && httpException.GetHttpCode() == 404)
args.Dismiss();
}
}
/// <summary>
/// Raises the <see cref="Filtering"/> event.
/// </summary>
protected virtual void OnFiltering(ExceptionFilterEventArgs args)
{
ExceptionFilterEventHandler handler = Filtering;
if (handler != null)
{
handler(this, args);
}
}
/// <summary>
/// Logs an exception and its context to the error log.
/// </summary>
protected virtual void LogException(Exception e, HttpContextBase context)
{
if (e == null)
{
throw new ArgumentNullException("e");
}
//
// Fire an event to check if listeners want to filter out
// logging of the uncaught exception.
//
ExceptionFilterEventArgs args = new ExceptionFilterEventArgs(e, context);
OnFiltering(args);
if (args.Dismissed)
{
return;
}
//
// Log away...
//
ErrorLogEntry entry = null;
try
{
Error error = new Error(e, context);
ErrorLog log = GetErrorLog(context);
error.ApplicationName = log.ApplicationName;
OnLogging(new ErrorLoggingEventArgs(error));
string id = log.Log(error);
entry = new ErrorLogEntry(log, id, error);
}
catch (Exception localException)
{
//
// IMPORTANT! We swallow any exception raised during the
// logging and send them out to the trace . The idea
// here is that logging of exceptions by itself should not
// be critical to the overall operation of the application.
// The bad thing is that we catch ANY kind of exception,
// even system ones and potentially let them slip by.
//
Trace.WriteLine(localException);
}
if (entry != null)
{
OnLogged(new ErrorLoggedEventArgs(entry));
}
}
// Dismiss 404 errors for ELMAH
private void FilterError404(ExceptionFilterEventArgs e)
{
if (e.Exception.GetBaseException() is HttpException)
{
HttpException ex = (HttpException)e.Exception.GetBaseException();
if (ex.GetHttpCode() == 404)
e.Dismiss();
}
}
// Dismiss 404 errors for ELMAH
private static void FilterError404(ExceptionFilterEventArgs e)
{
if (!(e.Exception.GetBaseException() is HttpException))
{
return;
}
var ex = (HttpException)e.Exception.GetBaseException();
if (ex.GetHttpCode() == 404)
e.Dismiss();
}
// Dismiss 404 errors for ELMAH
private void FilterError404(ExceptionFilterEventArgs e)
{
if (e.Exception.GetBaseException() is HttpException)
{
HttpException ex = (HttpException)e.Exception.GetBaseException();
if (ex.GetHttpCode() == 404)
e.Dismiss();
}
// Response.Redirect(@"/Error/Trouble");
}
public void ErrorMail_Filtering(object sender, ExceptionFilterEventArgs e)
{
var httpException = e.Exception as HttpException;
if (httpException != null && httpException.GetHttpCode() == 404)
{
e.Dismiss();
}
#if DEBUG
e.Dismiss();
#endif
}
/// <summary>
/// This method checks the HttpContext associated with the Exception for any sensitive
/// data submitted in the form that should not be logged in plain text.
/// If fields are found that match the names in the SensitiveFieldNames list, their values
/// are replaced with **** before the error is logged.
/// </summary>
/// <param name="args"></param>
internal static void FilterSensitiveData(ExceptionFilterEventArgs args)
{
if (args.Context != null)
{
HttpContext context = (HttpContext)args.Context;
if (context.Request != null &&
context.Request.Form != null &&
context.Request.Form.AllKeys.Intersect(sensitiveFieldNames, StringComparer.InvariantCultureIgnoreCase).Any())
{
ReplaceSensitiveFormFields(args, context);
}
}
}
private static void ReplaceSensitiveFormFields(ExceptionFilterEventArgs args, HttpContext context)
{
var replacementError = new Error(args.Exception, (HttpContext)args.Context);
foreach (var formField in context.Request.Form.AllKeys)
{
if (sensitiveFieldNames.Contains(formField, StringComparer.InvariantCultureIgnoreCase))
{
replacementError.Form.Set(formField, "****");
}
}
ErrorLog.GetDefault(HttpContext.Current).Log(replacementError);
args.Dismiss();
}
protected void ErrorLog_Filtering(object sender, ExceptionFilterEventArgs e)
{
// Cancels elmah logging for these conditions.
//if (!Request.Url.ToString().ToLower().Contains(ConfigurationManager.AppSettings["klasresearchURL"], true) || Request.UserAgent.ToLower().Contains("bot", true) || Request.UserAgent.ToLower().Contains("spider", true) || Request.UserAgent.ToLower().Contains("crawler", true) || Request.UserAgent.ToLower().Contains("slurp", true) || Request.UserAgent.ToLower().Contains("ezooms", true))
//{
// e.Dismiss();
//}
//if (Request.Url.ToString().ToLower().Contains("jw-icons.eot"))
//{
// e.Dismiss();
//}
}
public void ErrorMail_Filtering(object sender, ExceptionFilterEventArgs e)
{
var ex = e.Exception.GetBaseException();
var httpex = ex as HttpException;
if (httpex != null)
{
var status = httpex.GetHttpCode();
if (status == 400 || status == 404)
e.Dismiss();
else if (httpex.Message.Contains("The remote host closed the connection"))
e.Dismiss();
else if (httpex.Message.Contains("A potentially dangerous Request.Path value was detected from the client"))
e.Dismiss();
}
if (ex is FileNotFoundException || ex is HttpRequestValidationException)
e.Dismiss();
}
protected virtual void OnErrorModuleFiltering(object sender, ExceptionFilterEventArgs args)
{
if (args == null)
throw new ArgumentNullException("args");
if (args.Exception == null)
throw new ArgumentException(null, "args");
try
{
if (Assertion.Test(new AssertionHelperContext(sender, args.Exception, args.Context)))
args.Dismiss();
}
catch (Exception e)
{
Trace.WriteLine(e);
throw;
}
}
protected override void LogException(Exception e, HttpContext context)
{
if (e == null)
throw new ArgumentNullException("e");
var args = new ExceptionFilterEventArgs(e, context);
OnFiltering(args);
if (args.Dismissed)
return;
try
{
e.SendToAirbrake();
}
catch (Exception localException)
{
Trace.WriteLine(localException);
}
}
/// <summary>
/// Reports the exception.
/// </summary>
protected virtual void OnError(Exception e, HttpContext context)
{
if (e == null)
{
throw new ArgumentNullException("e");
}
// Fire an event to check if listeners want to filter out reporting of the uncaught exception.
Elmah.ExceptionFilterEventArgs args = new Elmah.ExceptionFilterEventArgs(e, context);
OnFiltering(args);
if (args.Dismissed)
{
return;
}
// Get the last error and then write it to the EventLog.
Elmah.Error error = new Elmah.Error(e, context);
ReportError(error);
}
private static void FilterException(object sender, ExceptionFilterEventArgs args)
{
var httpContext = args.Context as HttpContext;
var error = new Error(args.Exception, httpContext.ApplicationInstance.Context);
var sensitiveFormDataNames = httpContext.Items[Constants.HttpContextItemsKey] as IEnumerable<string>;
if (sensitiveFormDataNames == null)
{
return;
}
var sensitiveFormData = httpContext.Request.Form.AllKeys
.Where(key => sensitiveFormDataNames.Contains(key.ToLowerInvariant()))
.ToList();
if (sensitiveFormData.Any())
{
sensitiveFormData.ForEach(k => error.Form.Set(k, Config.SensitiveDataReplacementText));
ErrorLog.GetDefault(httpContext).Log(error);
args.Dismiss();
}
}
/// <summary>
/// Reports the exception.
/// </summary>
protected virtual void OnError(Exception e, HttpContext context)
{
if (e == null)
{
throw new ArgumentNullException("e");
}
//
// Fire an event to check if listeners want to filter out
// reporting of the uncaught exception.
//
ExceptionFilterEventArgs args = new ExceptionFilterEventArgs(e, context);
OnFiltering(args);
if (args.Dismissed)
{
return;
}
//
// Get the last error and then report it synchronously or
// asynchronously based on the configuration.
//
Error error = new Error(e, context);
if (_reportAsynchronously)
{
ReportErrorAsync(error);
}
else
{
ReportError(error);
}
}
//Dimiss 404 errors for ELMAH
protected void FilterError(ExceptionFilterEventArgs e)
{
if (e.Exception.GetBaseException() is HttpException)
{
HttpException ex = (HttpException)e.Exception.GetBaseException();
if (ex.Message.Contains("A potentially dangerous Request.Path value was detected from the client"))
e.Dismiss();
else
{
switch (ex.GetHttpCode())
{
case 404:
e.Dismiss();
break;
case 410:
e.Dismiss();
break;
case 406:
e.Dismiss();
break;
}
}
}
}
private static void FilterOutSensitiveFormData(ExceptionFilterEventArgs e)
{
var ctx = e.Context as HttpContext;
if (ctx == null)
return;
var sensitiveFormKeys = new[] { "creditcard", "ccv", "cvv", "cardnumber", "cardcode", "password", "account", "routing" };
var sensitiveFormData = ctx.Request.Form.AllKeys.Where(
k => sensitiveFormKeys.Contains(k.ToLower(), StringComparer.OrdinalIgnoreCase)).ToList();
if (!sensitiveFormData.Any() || Util.IsDebug())
return;
var error = new Error(e.Exception, ctx);
sensitiveFormData.ForEach(k => error.Form.Set(k, "*****"));
ErrorLog.GetDefault(ctx).Log(error);
e.Dismiss();
}
protected void ErrorMail_Filtering(object sender, ExceptionFilterEventArgs args)
{
ElmahFilter.FilterSensitiveData(args);
}
// ELMAH Filtering
protected void ErrorLog_Filtering(object sender, ExceptionFilterEventArgs e)
{
FilterError404(e);
}
public void ErrorMail_Filtering(object sender, ExceptionFilterEventArgs e)
{
// perform filtering here
}
/// <summary>
/// Logs an exception and its context to the error log.
/// </summary>
protected virtual void LogException(Exception e, HttpContextBase context)
{
if (e == null)
throw new ArgumentNullException("e");
//
// Fire an event to check if listeners want to filter out
// logging of the uncaught exception.
//
var args = new ExceptionFilterEventArgs(e, context);
OnFiltering(args);
if (args.Dismissed)
return;
//
// Tweet away...
//
HttpWebRequest request = null;
try
{
var status = StringFormatter.Format(_statusFormat, new Error(e, context));
//
// Apply ellipsis if status is too long. If the trimmed
// status plus ellipsis yields nothing then just use
// the trimmed status without ellipsis. This can happen if
// someone gives an ellipsis that is ridiculously long.
//
var maxLength = _maxStatusLength;
if (status.Length > maxLength)
{
var ellipsis = _ellipsis;
var trimmedStatusLength = maxLength - ellipsis.Length;
status = trimmedStatusLength >= 0
? status.Substring(0, trimmedStatusLength) + ellipsis
: status.Substring(0, maxLength);
}
//
// Submit the status by posting form data as typically down
// by browsers for forms found in HTML.
//
request = (HttpWebRequest) WebRequest.Create(_url);
request.Method = "POST"; // WebRequestMethods.Http.Post;
request.ContentType = "application/x-www-form-urlencoded";
if (_credentials != null) // Need Basic authentication?
{
request.Credentials = _credentials;
request.PreAuthenticate = true;
}
// See http://blogs.msdn.com/shitals/archive/2008/12/27/9254245.aspx
request.ServicePoint.Expect100Continue = false;
//
// URL-encode status into the form and get the bytes to
// determine and set the content length.
//
var encodedForm = string.Format(_formFormat, Uri.EscapeDataString(status));
var data = Encoding.ASCII.GetBytes(encodedForm);
Debug.Assert(data.Length > 0);
request.ContentLength = data.Length;
//
// Get the request stream into which the form data is to
// be written. This is done asynchronously to free up this
// thread.
//
// NOTE: We maintain a (possibly paranoid) list of
// outstanding requests and add the request to it so that
// it does not get treated as garbage by GC. In effect,
// we are creating an explicit root. It is also possible
// for this module to get disposed before a request
// completes. During the callback, no other member should
// be touched except the requests list!
//
_requests.Add(request);
var ar = request.BeginGetRequestStream(OnGetRequestStreamCompleted,
AsyncArgs(request, data));
}
catch (Exception localException)
{
//
// IMPORTANT! We swallow any exception raised during the
// logging and send them out to the trace . The idea
// here is that logging of exceptions by itself should not
// be critical to the overall operation of the application.
// The bad thing is that we catch ANY kind of exception,
// even system ones and potentially let them slip by.
//
OnWebPostError(request, localException);
}
}
/// <summary>
/// Logs an exception and its context to the error log.
/// </summary>
protected virtual void LogException(Exception e, HttpContextBase context)
{
if (e == null)
throw new ArgumentNullException("e");
//
// Fire an event to check if listeners want to filter out
// logging of the uncaught exception.
//
ExceptionFilterEventArgs args = new ExceptionFilterEventArgs(e, context);
OnFiltering(args);
if (args.Dismissed)
return;
//
// Log away...
//
ErrorLogEntry entry = null;
try
{
Error error = new Error(e, context);
ErrorLog log = GetErrorLog(context);
error.ApplicationName = log.ApplicationName;
OnLogging(new ErrorLoggingEventArgs(error));
string id = log.Log(error);
entry = new ErrorLogEntry(log, id, error);
}
catch (Exception localException)
{
//
// IMPORTANT! We swallow any exception raised during the
// logging and send them out to the trace . The idea
// here is that logging of exceptions by itself should not
// be critical to the overall operation of the application.
// The bad thing is that we catch ANY kind of exception,
// even system ones and potentially let them slip by.
//
Trace.WriteLine(localException);
}
if (entry != null)
OnLogged(new ErrorLoggedEventArgs(entry));
}
void ErrorLog_Filtering(object sender, ExceptionFilterEventArgs e)
{
if (e.Exception.GetBaseException() is HttpRequestValidationException)
e.Dismiss();
}
/// <summary>
/// Reports the exception.
/// </summary>
protected virtual void OnError(Exception e, HttpContext context, string applciationName)
{
if (e == null)
throw new ArgumentNullException("e");
//
// Fire an event to check if listeners want to filter out
// reporting of the uncaught exception.
//
ExceptionFilterEventArgs args = new ExceptionFilterEventArgs(e, context);
OnFiltering(args);
if (args.Dismissed)
return;
//
// Get the last error and then report it synchronously or
// asynchronously based on the configuration.
//
Error error = new Error(e, context);
if (!string.IsNullOrEmpty(applciationName))
error.ApplicationName = applciationName;
if (_reportAsynchronously)
ReportErrorAsync(error);
else
ReportError(error);
}
/// <summary>
/// Logs an exception and its context to the error log.
/// </summary>
protected virtual void LogException(Exception e, HttpContextBase context)
{
if (e == null)
{
throw new ArgumentNullException("e");
}
//
// Fire an event to check if listeners want to filter out
// logging of the uncaught exception.
//
ExceptionFilterEventArgs args = new ExceptionFilterEventArgs(e, context);
OnFiltering(args);
if (args.Dismissed)
{
return;
}
//
// Tweet away...
//
HttpWebRequest request = null;
try
{
string status = StringFormatter.Format(_statusFormat, new Error(e, context));
//
// Apply ellipsis if status is too long. If the trimmed
// status plus ellipsis yields nothing then just use
// the trimmed status without ellipsis. This can happen if
// someone gives an ellipsis that is ridiculously long.
//
int maxLength = _maxStatusLength;
if (status.Length > maxLength)
{
string ellipsis = _ellipsis;
int trimmedStatusLength = maxLength - ellipsis.Length;
status = trimmedStatusLength >= 0
? status.Substring(0, trimmedStatusLength) + ellipsis
: status.Substring(0, maxLength);
}
//
// Submit the status by posting form data as typically down
// by browsers for forms found in HTML.
//
request = (HttpWebRequest)WebRequest.Create(_url);
request.Method = "POST"; // WebRequestMethods.Http.Post;
request.ContentType = "application/x-www-form-urlencoded";
if (_credentials != null) // Need Basic authentication?
{
request.Credentials = _credentials;
request.PreAuthenticate = true;
}
// See http://blogs.msdn.com/shitals/archive/2008/12/27/9254245.aspx
request.ServicePoint.Expect100Continue = false;
//
// URL-encode status into the form and get the bytes to
// determine and set the content length.
//
string encodedForm = string.Format(_formFormat, HttpUtility.UrlEncode(status));
byte[] data = Encoding.ASCII.GetBytes(encodedForm);
Debug.Assert(data.Length > 0);
request.ContentLength = data.Length;
//
// Get the request stream into which the form data is to
// be written. This is done asynchronously to free up this
// thread.
//
// NOTE: We maintain a (possibly paranoid) list of
// outstanding requests and add the request to it so that
// it does not get treated as garbage by GC. In effect,
// we are creating an explicit root. It is also possible
// for this module to get disposed before a request
// completes. During the callback, no other member should
// be touched except the requests list!
//
_requests.Add(request);
IAsyncResult ar = request.BeginGetRequestStream(
new AsyncCallback(OnGetRequestStreamCompleted),
AsyncArgs(request, data));
}
catch (Exception localException)
{
//
// IMPORTANT! We swallow any exception raised during the
// logging and send them out to the trace . The idea
// here is that logging of exceptions by itself should not
// be critical to the overall operation of the application.
// The bad thing is that we catch ANY kind of exception,
// even system ones and potentially let them slip by.
//
OnWebPostError(request, localException);
}
}
/// <summary>
/// Raises the <see cref="Filtering"/> event.
/// </summary>
protected virtual void OnFiltering(ExceptionFilterEventArgs args)
{
ExceptionFilterEventHandler handler = Filtering;
if (handler != null)
handler(this, args);
}
void MyErrorMailModule_Filtering(object sender, ExceptionFilterEventArgs args)
{
var httpException = args.Exception.GetBaseException() as HttpException;
if (httpException != null && httpException.GetHttpCode() == 404)
args.Dismiss();
}
