private static void BuildUrlIndexes(int portalId, UrlRedirectProvider provider, FriendlyUrlOptions options, out Hashtable friendlyUrlIndex, out List <RedirectInfo> regexIndex, ref List <string> messages)
{
friendlyUrlIndex = new Hashtable();
regexIndex = new List <RedirectInfo>();
//call database procedure to get list of redirects
List <RedirectInfo> redirects = GetUrlRedirects(portalId);
if (redirects != null)
{
foreach (RedirectInfo redirect in redirects)
{
string validationMessage;
if (redirect.IsValid(out validationMessage))
{
if (redirect.IsRegex == false)
{
string url = redirect.MatchUrl.ToLower();
friendlyUrlIndex.Add(url, redirect);
}
else
{
regexIndex.Add(redirect);
}
}
else
{
//invalid redirect, don't add to list
messages.Add(validationMessage);
}
}
}
}
/// <summary>
/// Returns a friendly url index from the cache or database.
/// </summary>
/// <param name="tabId"></param>
/// <param name="portalId"></param>
/// <param name="UrlRedirectModuleProvider"></param>
/// <param name="options"></param>
/// <returns></returns>
internal static void GetRedirectIndexes(int portalId, UrlRedirectProvider provider, FriendlyUrlOptions options, out Hashtable redirectIndex, out List <RedirectInfo> regexIndex, ref List <string> messages)
{
var redirectCacheKey = GetRedirectIndexKeyForPortal(portalId);
var regexCacheKey = GetRegexIndexKeyForPortal(portalId);
redirectIndex = (Hashtable)DataCache.GetCache(redirectCacheKey);
regexIndex = (List <RedirectInfo>)DataCache.GetCache(regexCacheKey);
if (redirectIndex == null || regexIndex == null)
{
//build index for tab
BuildUrlIndexes(portalId, provider, options, out redirectIndex, out regexIndex, ref messages);
StoreIndexes(redirectIndex, redirectCacheKey, regexIndex, regexCacheKey);
}
}
internal static void CheckRegexRule(UrlRedirectProvider provider, RedirectInfo regexRedirect, string requestedUrl, string requestedScheme, NameValueCollection queryStringCol, out bool doRedirect, out string redirectLocation, ref List <string> messages)
{
doRedirect = false;
redirectLocation = null;
if (string.IsNullOrEmpty(regexRedirect.RedirectUrl) == false)
{
string pattern = regexRedirect.RedirectUrl;
string replace = regexRedirect.DestUrl;
Regex urlRegex = new Regex(pattern, RegexOptions.IgnoreCase | RegexOptions.CultureInvariant);
if (urlRegex.IsMatch(requestedUrl))
{
//matches
messages.Add("URP : Regex Match on " + requestedUrl + " with pattern " + pattern);
string replacedUrl = urlRegex.Replace(requestedUrl, replace);
redirectLocation = RedirectLocation(provider, regexRedirect, requestedUrl, requestedScheme, queryStringCol, ref messages);
doRedirect = true;
}
}
}
/// <summary>
/// Given a rule, returns a redirect location
/// </summary>
/// <param name="redirectInfo"></param>
/// <param name="redirectUrl"></param>
/// <returns></returns>
internal static string RedirectLocation(UrlRedirectProvider provider, RedirectInfo redirectInfo, string redirectUrl, string scheme, NameValueCollection queryString, ref List <string> messages)
{
string destinationUrl = "";
switch (redirectInfo.DestType.ToLower())
{
case "tab":
string path = redirectInfo.DestUrl;
if (redirectInfo.DestTabId > -1)
{
//construct the portal settings required for the destination
PortalAliasController pac = new PortalAliasController();
PortalAliasInfo pa = null;
if (string.IsNullOrEmpty(redirectInfo.HttpAlias))
{
var aliases = pac.GetPortalAliasArrayByPortalID(redirectInfo.PortalId);
foreach (PortalAliasInfo alias in aliases)
{
if (alias.IsPrimary)
{
pa = alias;
break;
}
}
//safety check for failed alias
if (pa == null)
{
throw new NullReferenceException(
"Either Redirect HttpAlias must be specified for DestType of 'Tab', or this portal must have a primary alias. Redirect Id : " +
redirectInfo.RedirectId.ToString());
}
}
else
{
//get this specific alias
pa = pac.GetPortalAlias(redirectInfo.HttpAlias, redirectInfo.PortalId);
}
//create a new portal settings object with this alias
PortalSettings ps = new PortalSettings(redirectInfo.DestTabId, pa);
//build the redirect path
if (string.IsNullOrEmpty(path) == false)
{
//add a url path onto the url created for the tab
string qs;
SplitPathAndQuerystring(path, out path, out qs);
path = provider.EnsureNotLeadingChar("/", path);
//now call down to the navigate url
destinationUrl = DotNetNuke.Common.Globals.NavigateURL(redirectInfo.DestTabId, ps, "", path);
if (queryString != null && queryString.Count > 0)
{
destinationUrl = AddQueryString(destinationUrl, queryString);
}
//check for querystring preservation
if (redirectInfo.KeepQueryString && qs != null)
{
//put the querystring back on, if it existed
destinationUrl = AddQueryString(destinationUrl, qs);
messages.Add("URP: Redirecting " + redirectUrl + " to " + destinationUrl + " by tab + path + qs. RuleId: " + redirectInfo.RedirectId.ToString());
}
else
{
messages.Add("URP: Redirecting " + redirectUrl + " to " + destinationUrl + " by tab + path. RuleId: " + redirectInfo.RedirectId.ToString());
}
}
else
{
//no path -just the tab
destinationUrl = DotNetNuke.Common.Globals.NavigateURL(redirectInfo.DestTabId, ps, "");
if (redirectInfo.KeepQueryString && queryString != null && queryString.Count > 0)
{
destinationUrl = AddQueryString(destinationUrl, queryString);
messages.Add("URP: Redirecting " + redirectUrl + " to " + destinationUrl + " by tab + qs. RuleId: " + redirectInfo.RedirectId.ToString());
}
else
{
messages.Add("URP: Redirecting " + redirectUrl + " to " + destinationUrl + " by tab. RuleId: " + redirectInfo.RedirectId.ToString());
}
}
}
break;
case "url":
destinationUrl = redirectInfo.DestUrl;
if (Regex.IsMatch(destinationUrl, @"^https?://", RegexOptions.IgnoreCase | RegexOptions.CultureInvariant) == false)
{
//no scheme, add on supplied scheme
destinationUrl = scheme + Uri.SchemeDelimiter + destinationUrl;
}
//keep query string from redirect destination
if (redirectInfo.KeepQueryString)
{
destinationUrl = AddQueryString(destinationUrl, queryString);
messages.Add("URP: Redirecting " + redirectUrl + " to " + destinationUrl +
" by url + qs. RuleId: " + redirectInfo.RedirectId.ToString());
}
else
{
messages.Add("URP: Redirecting " + redirectUrl + " to " + destinationUrl + " by url. RuleId: " +
redirectInfo.RedirectId.ToString());
}
try
{
Uri redirectUri = new Uri(destinationUrl);
}
catch (Exception invalidEx)
{
messages.Add("Invalid redirect URL '" + redirectUrl + "'. Message: " + invalidEx.Message);
throw;
}
break;
}
return(destinationUrl);
}
