/// <summary>
/// This method reads the promo url mapping and populates the PromoUrls dictionary object
/// The key is name of the promo url and the value is an object of promourl.
/// </summary>
/// <param name="reader"></param>
public void ReadXml(System.Xml.XmlReader reader)
{
XmlSerializer valueSerializer = new XmlSerializer(typeof(PromoUrl));
if (reader.IsEmptyElement)
{
return;
}
// Read to PromoUrls element
reader.Read();
if (reader.IsEmptyElement)
{
return;
}
while (reader.Read())
{
if (reader.LocalName == "PromoUrl")
{
//Create instance of promo url
PromoUrl promoUrl = new PromoUrl();
string key = reader.GetAttribute("Name");
if (!string.IsNullOrEmpty(key))
{
key = key.ToLower().Trim();
promoUrl.Name = key;
reader.Read();
String mappedUrl = reader.ReadString();
if (string.IsNullOrEmpty(mappedUrl)) // If the mapped URL is missing, skip this one.
{
continue;
}
promoUrl.MappedTo = mappedUrl.Trim();
if (!PromoUrls.ContainsKey(key))
{
PromoUrls.Add(key, promoUrl);
}
reader.ReadEndElement();
}
else
{
throw new Exception("name attribute cannot be null for the Promo URL");
}
}
}
}
void OnBeginRequest(object sender, EventArgs e)
{
context = ((HttpApplication)sender).Context;
// Get absolute path of the request URL as pretty URL
String url = context.Server.UrlDecode(context.Request.Url.AbsolutePath);
if (Utility.IgnoreWebResource(url))
{
return;
}
//Check if the PageAssemblyInstruction is not null then it was processed as pretty url.
if (PageAssemblyContext.Current.PageAssemblyInstruction != null)
{
return;
}
try
{
//Check if Promo Url information is in the Application State
PromoUrlMapping promoUrlMapping = null;
bool reLoad = (bool)context.Application["reloadPromoUrlMappingInfo"];
bool promoUrlMappingFileChanged = IsPromoUrlMappingFileChanged("/");
if (context.Application["PromoUrlMapping"] != null && !reLoad && !promoUrlMappingFileChanged)
{
promoUrlMapping = (PromoUrlMapping)context.Application["PromoUrlMapping"];
}
else
{
context.Application.Lock();
FileInfo fileInfo = null;
PromoUrlMapping freshPromoUrlMapping = PromoUrlMappingInfoFactory.GetPromoUrlMapping("/", ref fileInfo);
if (freshPromoUrlMapping != null)
{
context.Application["reloadPromoUrlMappingInfo"] = false;
context.Application["PromoUrlMapping"] = freshPromoUrlMapping;
CachedPromoMappingFileInfo = fileInfo;
}
context.Application.UnLock();
// Log an event saying the promo url mapping file was loaded
log.DebugFormat("Promo Url Mapping file successfully loaded reLoad: {0}, promoUrlMappingFileChanged: {1}",
reLoad, promoUrlMappingFileChanged);
}
promoUrlMapping = (PromoUrlMapping)context.Application["PromoUrlMapping"];
if (promoUrlMapping != null)
{
PromoUrl promoUrl = null;
if (promoUrlMapping.PromoUrls.ContainsKey(url.ToLower()))
{
promoUrl = promoUrlMapping.PromoUrls[url.ToLower()];
string mappedToUrl = promoUrl.MappedTo + (string.IsNullOrEmpty(context.Request.Url.Query) ? "?redirect=true" : context.Request.Url.Query);
// Add redirect parameter for analytics (if not previously redirected)
if (!string.IsNullOrEmpty(context.Request.Url.Query))
{
mappedToUrl += (!context.Request.Url.Query.Contains("redirect=true") ? "&redirect=true" : String.Empty);
}
// If the original request is post then save target promo url
// for use in the page instructions assembly loader.
if (context.Request.RequestType == "POST")
{
context.RewritePath(mappedToUrl);
}
else
{
NCI.Web.CDE.Application.PermanentRedirector.DoPermanentRedirect(context.Response, mappedToUrl, "Promo Url");
}
}
else if (!url.EndsWith("/") && promoUrlMapping.PromoUrls.ContainsKey(url.ToLower() + "/"))
{
promoUrl = promoUrlMapping.PromoUrls[url.ToLower() + "/"];
string mappedToUrl = promoUrl.MappedTo + (string.IsNullOrEmpty(context.Request.Url.Query) ? "?redirect=true" : context.Request.Url.Query);
// Add redirect parameter for analytics (if not previously redirected)
if (!string.IsNullOrEmpty(context.Request.Url.Query))
{
mappedToUrl += (!context.Request.Url.Query.Contains("redirect=true") ? "&redirect=true" : String.Empty);
}
// If the original request is post then save target promo url
// for use in the page instructions assembly loader.
if (context.Request.RequestType == "POST")
{
context.RewritePath(mappedToUrl);
}
else
{
NCI.Web.CDE.Application.PermanentRedirector.DoPermanentRedirect(context.Response, mappedToUrl, "Promo Url");
}
}
else
{
//1. Remove last part of path, e.g. /cancertopics/wyntk/bladder/page10 becomes /cancertopics/wyntk/bladder
string truncUrl = url.Substring(0, url.LastIndexOf('/'));
string appendUrl = url.Substring(url.LastIndexOf('/'));
if (truncUrl != string.Empty)
{
if (promoUrlMapping.PromoUrls.ContainsKey(truncUrl.ToLower()))
{
promoUrl = promoUrlMapping.PromoUrls[truncUrl.ToLower()];
string mappedToUrl = promoUrl.MappedTo + appendUrl + (string.IsNullOrEmpty(context.Request.Url.Query) ? "?redirect=true" : context.Request.Url.Query);
// Add redirect parameter for analytics (if not previously redirected)
if (!string.IsNullOrEmpty(context.Request.Url.Query))
{
mappedToUrl += (!context.Request.Url.Query.Contains("redirect=true") ? "&redirect=true" : String.Empty);
}
if (context.Request.RequestType == "POST")
{
context.RewritePath(mappedToUrl);
}
else
{
NCI.Web.CDE.Application.PermanentRedirector.DoPermanentRedirect(context.Response, mappedToUrl, "Promo Url multi-page");
}
}
}
else
{
log.DebugFormat("OnBeginRequest(): Promo Url Mapping information not found for {0}", url);
}
}
}
else
{
log.Warn("OnBeginRequest(): No Promo Url Mapping information");
}
}
catch (System.Threading.ThreadAbortException)
{ }
catch (Exception ex)
{
log.Error("OnBeginRequest(): Failed to Process Promo URL - " + url, ex);
}
}