c# - Redirect in a Sitecore solution Noob -

here trying do, employer want able able 301 redirect regex expression alias in sitecore way trying implement this!

a singleline text field checkbox tell sitecore regex expression noob in .net , sitecore how can implement ? here exemple http://postimg.org/image/lwr524hkn/

i need exemple of redirect want handle this, exemple of redirect want product @ place of solution.

exemple.com/en/solution/platform-features to

exemple.com/en/platform-features

i base code http://www.cmssource.co.uk/blog/2011/december/modifying-sitecore-alias-to-append-custom-query-strings-via-301-redirect query string want use regex expression.

    namespace helloworld.website.sc.common {     public class aliasresolver : sitecore.pipelines.httprequest.aliasresolver     {         // beginning of methods         public new void process(httprequestargs args)         {             assert.argumentnotnull(args, "args");              if (!settings.aliasesactive)             {                 tracer.warning("aliases in aliasresolver not active.");             }             else             {                 sitecore.data.database database = context.database;                 if (database == null)                 {                     tracer.warning("there no context in aliasresolver.");                 }                 else                 {                        {                         profiler.startoperation("resolve virgin alias pipeline.");                         item item = itemmanager.getitem(fileutil.makepath("/sitecore/system/aliases", args.localpath, '/'), language.current, sitecore.data.version.first, database, securitycheck.disable);                         if (item != null)                         {                             //alias existis (now have alias item)                             if (item.fields["regular expressions"] != null)                             {                                 if (!string.isnullorempty(item.fields["regular expressions"].value) && !args.url.querystring.contains("aproc"))                                 {                                    var reg = new regex(@"(?<begin>([^/]*/){2})[^/]*/(?<end>.*)");                                    var match = reg.match(@"exemple.com/en/solution/platform-features");                                    var result = match.groups["begin"].value + match.groups["end"].value;                                 }                             }                         }                         profiler.endoperation();                     }                     catch (exception ex)                     {                         log.error("had problem in virginaliasresolver. error: " + ex.message, this);                     }                 }             }         }         ///<summary>         ///  once match found , have sitecore item, can send 301 response.         ///</summary>         private static void sendresponse(string redirecttourl, httprequestargs args)         {             args.context.response.status = "301 moved permanently";             args.context.response.statuscode = 301;             args.context.response.addheader("location", redirecttourl);             args.context.response.end();         }     } } 

ps: know have module employer want done way , reaching since it's been week i'm trying add feature

so if understand correctly, not want select alias path:

item item = itemmanager.getitem(fileutil.makepath("/sitecore/system/aliases", args.localpath, '/'), language.current, sitecore.data.version.first, database, securitycheck.disable); 

but rather find alias comparing regex field url. have not tested this, someting like:

var originalurl = httpcontext.current.request.url; var allaliases = sitecore.context.database.selectitems("/sitecore/system/aliases//*"); var foundalias = allaliases.firstordefault( alias =>                         !string.isnullorempty(alias["regular expressions"]) &&                         regex.ismatch(httpcontext.current.request.url.tostring(), alias["regular expressions"])); 

then, if foundalias != null, can retrieve url , redirect in private sendresponse function.

var linkfield = (linkfield)foundalias.fields["linked item"]; var targeturl = linkfield.url; using (new securitydisabler())  {     if (string.isnullorempty(targeturl) && linkfield.targetitem != null)        targeturl = linkmanager.getitemurl(linkfield.targetitem); }  sendresponse(targeturl, args); 

again, have not tested don't shoot me if needs corrections, should on way.