/// <summary>
/// Short URLs and moved pages are stored in a database. See whether there's a match, and redirect.
/// </summary>
/// <param name="requestedUrl">The requested URL.</param>
private bool TryShortOrMovedUrl(Uri requestedUrl)
{
try
{
// Try to match the requested URL to a redirect and, if successful, run handlers for the redirect
var matchers = new IRedirectMatcher[] { new SqlServerRedirectMatcher()
{
ThrowErrorOnMissingConfiguration = false
} };
var handlers = new IRedirectHandler[] { new ConvertToAbsoluteUrlHandler(), new PreserveQueryStringHandler(), new DebugInfoHandler(), new GoToUrlHandler() };
foreach (var matcher in matchers)
{
var redirect = matcher.MatchRedirect(requestedUrl);
if (redirect != null)
{
foreach (var handler in handlers)
{
redirect = handler.HandleRedirect(redirect);
}
return(true);
}
}
}
catch (SqlException ex)
{
// If there's a problem, publish the error and continue to show 404 page
ex.ToExceptionless().Submit();
}
return(false);
}
public RequestHandler(
IRedirectHandler redirectHandler,
IRequestLogger requestLogger,
IConfiguration configuration)
{
_configuration = configuration ?? throw new ArgumentNullException(nameof(configuration));
_requestLogger = requestLogger ?? throw new ArgumentNullException(nameof(requestLogger));
_redirectHandler = redirectHandler ?? throw new ArgumentNullException(nameof(redirectHandler));
}
private void RedirectsModule_BeginRequest(object sender, EventArgs e)
{
try
{
// If the requested path exists, or it's too long for MapPath to handle, do nothing
try
{
if (File.Exists(HostingEnvironment.MapPath(HttpContext.Current.Request.Url.AbsolutePath)))
{
return;
}
}
catch (PathTooLongException)
{
return;
}
// If the requested path matches an ignored pattern, do nothing
if (!String.IsNullOrEmpty(ConfigurationManager.AppSettings["Escc.Redirects.IgnorePaths"]))
{
var ignorePaths = ConfigurationManager.AppSettings["Escc.Redirects.IgnorePaths"].Split(',');
foreach (var ignorePath in ignorePaths)
{
if (Regex.IsMatch(HttpContext.Current.Request.Url.PathAndQuery, ignorePath, RegexOptions.IgnoreCase))
{
return;
}
}
}
// Try to match the requested URL to a redirect and, if successful, run handlers for the redirect
var matchers = new IRedirectMatcher[] {new SqlServerRedirectMatcher()};
var handlers = new IRedirectHandler[] {new ConvertToAbsoluteUrlHandler(), new PreserveQueryStringHandler(), new DebugInfoHandler(), new GoToUrlHandler()};
foreach (var matcher in matchers)
{
var redirect = matcher.MatchRedirect(HttpContext.Current.Request.Url);
if (redirect != null)
{
foreach (var handler in handlers)
{
redirect = handler.HandleRedirect(redirect);
}
}
}
}
catch (Exception ex)
{
// If there's a problem, publish the error and continue
ex.ToExceptionless().Submit();
}
}
private void RedirectsModule_BeginRequest(object sender, EventArgs e)
{
try
{
// If the requested path exists, or it's too long for MapPath to handle, do nothing
try
{
if (File.Exists(HostingEnvironment.MapPath(HttpContext.Current.Request.Url.AbsolutePath)))
{
return;
}
}
catch (PathTooLongException)
{
return;
}
// If the requested path matches an ignored pattern, do nothing
if (!String.IsNullOrEmpty(ConfigurationManager.AppSettings["Escc.Redirects.IgnorePaths"]))
{
var ignorePaths = ConfigurationManager.AppSettings["Escc.Redirects.IgnorePaths"].Split(',');
foreach (var ignorePath in ignorePaths)
{
if (Regex.IsMatch(HttpContext.Current.Request.Url.PathAndQuery, ignorePath, RegexOptions.IgnoreCase))
{
return;
}
}
}
// Try to match the requested URL to a redirect and, if successful, run handlers for the redirect
var matchers = new IRedirectMatcher[] { new SqlServerRedirectMatcher() };
var handlers = new IRedirectHandler[] { new ConvertToAbsoluteUrlHandler(), new PreserveQueryStringHandler(), new DebugInfoHandler(), new GoToUrlHandler() };
foreach (var matcher in matchers)
{
var redirect = matcher.MatchRedirect(HttpContext.Current.Request.Url);
if (redirect != null)
{
foreach (var handler in handlers)
{
redirect = handler.HandleRedirect(redirect);
}
}
}
}
catch (Exception ex)
{
// If there's a problem, publish the error and continue
ex.ToExceptionless().Submit();
}
}
public RequestHandlerTests()
{
_redirectHandler = A.Fake <IRedirectHandler>();
_requestLogger = A.Fake <IRequestLogger>();
_configuration = A.Fake <IConfiguration>();
_sut = A.Fake <RequestHandler>(
o => o.WithArgumentsForConstructor(new object[] { _redirectHandler, _requestLogger, _configuration })
.CallsBaseMethods());
_httpContext = new FakeHttpContext();
_httpContext.Response.StatusCode = 404;
WhenIsRemote();
WhenIsNotResourceFile();
}
