public override void ProcessRequest(HttpRequestArgs args)
{
//if the source request url isn't aassociated with an item, skip this processor
if (Context.Item == null)
{
return;
}
string itemId = Context.Item.ID.ToString();
ItemRedirect resolvedMapping = this.GetResolvedMapping(itemId);
if (resolvedMapping == null)
{
resolvedMapping = this.FindMapping(itemId);
if (resolvedMapping != null)
{
var dictionaryitem = GetCache <Dictionary <string, ItemRedirect> >(ResolvedItemRedirectPrefix)
?? new Dictionary <string, ItemRedirect>();
dictionaryitem[itemId] = resolvedMapping;
SetCache(ResolvedItemRedirectPrefix, dictionaryitem);
}
}
if (resolvedMapping != null && HttpContext.Current != null)
{
if (!resolvedMapping.Target.IsNullOrEmpty())
{
//if we are preserving the incoming query string, append it now
GetPreservedQueryString(resolvedMapping);
if (resolvedMapping.RedirectType == RedirectType.Redirect301)
{
this.Redirect301(HttpContext.Current.Response, resolvedMapping.Target);
}
else if (resolvedMapping.RedirectType == RedirectType.Redirect302)
{
HttpContext.Current.Response.Redirect(resolvedMapping.Target, true);
}
else if (resolvedMapping.RedirectType == RedirectType.ServerTransfer)
{
HttpContext.Current.Server.TransferRequest(resolvedMapping.Target);
}
//default to 302
else
{
HttpContext.Current.Response.Redirect(resolvedMapping.Target, true);
}
args.AbortPipeline();
}
}
}
protected virtual ItemRedirect FindMapping(string itemId)
{
ItemRedirect redirectMapping = null;
List <ItemRedirect> .Enumerator enumerator = this.MappingsMap.GetEnumerator();
try
{
while (enumerator.MoveNext())
{
ItemRedirect current = enumerator.Current;
if (itemId == current.Source)
{
redirectMapping = current;
return(redirectMapping);
}
}
}
finally
{
((IDisposable)enumerator).Dispose();
}
return(redirectMapping);
}
