public override void Process(HttpRequestArgs args)
{
Assert.ArgumentNotNull(args, "args");
string url = args.Context.Request.Url.PathAndQuery;
// if ItemResolver failed to find an Item
if (((Context.Item == null) && string.IsNullOrEmpty(Context.Page.FilePath)) || url.Contains("404;"))
{
// extract 404 url
if (url.Contains("404;"))
{
url = Regex.Replace(HttpUtility.UrlDecode(url), ".*404;(.*)", "$1");
}
// find an Item Redirect
RedirectEntry redirect = RedirectManager.GetRedirect(Sitecore.Context.GetSiteName(), url);
if (redirect != null)
{
UrlString newUrl = null;
Item item = Context.Database.GetItem(new ID(redirect.ItemID));
if (item != null)
{
UrlOptions options = LinkManager.GetDefaultUrlOptions();
newUrl = new UrlString(LinkManager.GetItemUrl(item, options));
}
if (newUrl != null && !string.IsNullOrEmpty(redirect.QueryString))
{
var qsParameters = StringUtil.ParseNameValueCollection(redirect.QueryString, '&', '=');
foreach (string key in qsParameters.AllKeys)
{
newUrl[key] = qsParameters[key];
}
}
// avoid looping
if (newUrl != null && string.Compare(url, newUrl.ToString(), true) != 0)
{
args.AbortPipeline();
RedirectUtils.Do301Redirect(args.Context.Response, newUrl.ToString());
}
}
// no Item redirect found, try a NotFoundRule
else if (url != null)
{
NotFoundRule rule = RedirectManager.ResolveRedirectRule(Sitecore.Context.GetSiteName(), url);
if (rule != null)
{
ExecuteRule(url, rule, args);
}
}
}
}
public void ExecuteRule(string url, NotFoundRule rule, HttpRequestArgs args)
{
Assert.ArgumentNotNull(url, "url");
Assert.ArgumentNotNull(rule, "rule");
Assert.ArgumentNotNull(args, "args");
// execute a sub pipeline
if (!string.IsNullOrEmpty(rule.Pattern) && !string.IsNullOrEmpty(rule.Method))
{
object command = ReflectionUtil.CreateObject(rule.Type, new object[] { });
if (command != null)
{
try
{
ReflectionUtil.CallMethod(command, rule.Method, new object[] { args });
}
catch (System.Threading.ThreadAbortException)
{
//don't log. this is expected.
}
catch (Exception ex)
{
Log.Error("NotFoundRule Error", ex, this);
}
}
}
// or redirect to new url or regex
else if (rule.NewUrl.Length > 0)
{
Regex reg = new Regex(rule.Pattern, RegexOptions.IgnoreCase);
string newUrl = reg.Replace(url, rule.NewUrl);
switch (rule.StatusCode)
{
case "301":
RedirectUtils.Do301Redirect(args.Context.Response, newUrl);
break;
case "302":
RedirectUtils.Do302Redirect(args.Context.Response, newUrl);
break;
case "404":
RedirectUtils.Do404Redirect(args.Context.Response, newUrl);
break;
default:
WebUtil.Redirect(newUrl, false);
break;
}
args.Context.Response.End();
}
}