Issues with url rewriting on button click in asp.net
I've used url rewriting with custom modulerewriter in my asp.net app and it works, but the problem is when I click on any button, the default url in the browser changes to something like http: // tipl. bizo.in/Download.aspx?busid=tipl which sholuld will be replaced with http://tipl.bizo.in/tipl/Download as I can achieve this on button click
my code for custom rewrite module:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using BizoClientTemplate.Config;
using System.Text.RegularExpressions;
using System.Data;
using Click_Expo.BusinessObjects;
using System.Web.Caching;
using System.Web.SessionState;
namespace BizoClientTemplate
{
public class ModuleReWriter : BaseModuleWriter
{
private string[] ArrPages = new string[] { "/Home", "/SendEnquiry", "/Aboutus", "/MediaGallery", "/Download", "/Products", "/Ourteam", "/Contactus", "/Error","/OurClients.aspx" };
protected override void Rewrite(string requestedPath, System.Web.HttpApplication app)
{
// log information to the Trace object.
app.Context.Trace.Write("ModuleRewriter", "Entering ModuleRewriter");
app.Context.Trace.Write("ModuleRewriter", "Requested Url: " + requestedPath);
string _stroriginalurl = app.Request.Url.AbsoluteUri.ToLower();
if (!string.IsNullOrEmpty(_stroriginalurl))
{
Regex regurltest = new Regex(@"^http(s)?://(www\.)?(.*)\.(bizo\.in)\/$", RegexOptions.IgnoreCase);
if (regurltest.IsMatch(_stroriginalurl))
{
string _getparam = regurltest.Match(_stroriginalurl).Groups[3].Value;
if (!_getparam.Trim().Equals("www"))
{
if (requestedPath.Trim() == "/")
{
requestedPath = string.Format("/{0}/home", _getparam);
}
else
{
if (!requestedPath.Contains(_getparam))
requestedPath = string.Format("/{0}{1}", _getparam, requestedPath);
}
}
}
}
//app.Context.Response.Write(requestedPath);
//app.Context.Response.Write("</br>");
//app.Context.Response.Write(app.Request.Url.AbsoluteUri);
//app.Context.Response.End();
// get the configuration rules
ReWriterRuleCollection rules = RewriterConfiguration.GetConfig().Rules;
if (requestedPath.ToLower().Contains("css/") || requestedPath.ToLower().Contains("js/"))
return;
if (requestedPath.ToLower().Contains("images/") || requestedPath.ToLower().Contains("image/"))
return;
if (requestedPath.ToLower().Contains(".axd"))
return;
if (requestedPath.ToLower().Contains(".axpx"))
return;
if (requestedPath.ToLower().Contains(".ascx"))
return;
if (!IsExistsInPageList(requestedPath))
{
string _newrequestepath = CheckInDb_N_Replace(requestedPath);
if (!string.IsNullOrEmpty(_newrequestepath))
{
if (_newrequestepath.Contains("Page Not Found"))
{
if (!string.IsNullOrEmpty(_stroriginalurl))
{
if(_stroriginalurl.Contains("localhost"))
requestedPath = _newrequestepath;
Regex regurltest = new Regex(@"^http(s)?://(www\.)?(.*)\.(bizo\.in)\/$", RegexOptions.IgnoreCase);
if (regurltest.IsMatch(_stroriginalurl))
{
app.Context.Response.Redirect("http://bizo.in");
}
}
}
else
requestedPath = _newrequestepath;
}
}
// iterate through each rule...
for (int i = 0; i < rules.Count; i++)
{
// get the pattern to look for, and Resolve the Url (convert ~ into the appropriate directory)
string lookFor = "^" + RewriterUtils.ResolveUrl(app.Context.Request.ApplicationPath, rules[i].LookFor) + "$";
// Create a regex (note that IgnoreCase is set...)
Regex re = new Regex(lookFor, RegexOptions.IgnoreCase);
// See if a match is found
if (re.IsMatch(requestedPath))
{
// match found - do any replacement needed
string sendToUrl = RewriterUtils.ResolveUrl(app.Context.Request.ApplicationPath, re.Replace(requestedPath, rules[i].SendTo));
// log rewriting information to the Trace object
app.Context.Trace.Write("ModuleRewriter", "Rewriting URL to " + sendToUrl);
// Rewrite the URL
RewriterUtils.RewriteUrl(app.Context, sendToUrl);
break; // exit the for loop
}
}
// Log information to the Trace object
app.Context.Trace.Write("ModuleRewriter", "Exiting ModuleRewriter");
}
private DataView GetWebSiteList()
{
DataView dvReturn;
try
{
DataTable dtWebsiteList = new DataTable();
BoMyBizoWebsiteMapCollection objBoMyBizoWebsiteMapCollection = new BoMyBizoWebsiteMapCollection(new Click_Expo.BoClickExpo());
dtWebsiteList = objBoMyBizoWebsiteMapCollection.GetMyBizoWebsiteMapTable("", "");
dvReturn = dtWebsiteList.DefaultView;
if (HttpContext.Current.Cache["SiteName"] == null)
{
DateTime dt = DateTime.Now.AddMinutes(30);
HttpContext.Current.Cache.Add("SiteName", dvReturn, null, System.Web.Caching.Cache.NoAbsoluteExpiration, new TimeSpan(dt.Ticks - DateTime.Now.Ticks), CacheItemPriority.High, null);
}
else
{
HttpContext.Current.Cache["SiteName"]=dvReturn;
}
}
catch (Exception ex)
{
throw new Exception("Modulerewriter:GetWebSiteList()" + ex.Message);
}
return dvReturn;
}
private DataView GetBusinesslist()
{
DataView dvReturn;
try
{
BoBusinessProfileCollection objBoBusinessProfileCollection = new BoBusinessProfileCollection(new Click_Expo.BoClickExpo());
DataTable dtBusinessSites = new DataTable();
dtBusinessSites = objBoBusinessProfileCollection.GetAllBusiness();
dvReturn = dtBusinessSites.DefaultView;
if (HttpContext.Current.Cache["Business"] == null)
{
DateTime dt = DateTime.Now.AddMinutes(30);
HttpContext.Current.Cache.Add("Business", dvReturn, null, System.Web.Caching.Cache.NoAbsoluteExpiration, new TimeSpan(dt.Ticks - DateTime.Now.Ticks), CacheItemPriority.High, null);
}
else
{
HttpContext.Current.Cache["Business"]= dvReturn;
}
}
catch(Exception ex)
{
throw new Exception("Module rewiter:GetBusinessWebsitelist()" + ex.Message);
}
return dvReturn;
}
private static bool isNumeric(string strToCheck)
{
bool Isstatus = false;
Regex rg = new Regex(@"^\d+$");
Isstatus = rg.IsMatch(strToCheck);
return Isstatus;
}
private string CheckInDb_N_Replace( string _key)
{
string _newpath="";
DataView dvSiteNames;
if (isNumeric(_key.Replace("/", "")))
{
dvSiteNames = GetWebSiteList();
if (dvSiteNames.Count == 0)
{
dvSiteNames = GetBusinesslist();
}
}
else
{
dvSiteNames = GetWebSiteList();
}
if (dvSiteNames.Count > 0)
{
if (isNumeric(_key.Replace("/", "")))
{
dvSiteNames.RowFilter = "BusinessId='" + _key.Replace("/", "") + "'";
if (dvSiteNames.Count == 0)
{
dvSiteNames = GetBusinesslist();
dvSiteNames.RowFilter = "BusinessId='" + _key.Replace("/", "") + "'";
if (dvSiteNames.Count > 0)
_newpath = string.Format("{0}/home", _key);
else
_newpath = string.Format("/FrmError/{0}", "Page Not Found");
}
else
{
_newpath = string.Format("{0}/home", _key);
}
}
else
{
dvSiteNames.RowFilter = "WebsiteName ='" + _key.Replace("/", "") + "'";
if (dvSiteNames.Count > 0)
_newpath = string.Format("{0}/home", _key);
else
_newpath = string.Format("/FrmError/{0}", "Page Not Found");
}
}
return _newpath;
}
private bool IsExistsInPageList( string _key)
{
bool isExists = false;
for (int i = 0; i < ArrPages.Length; i++)
{
if (_key.ToLower().Contains(ArrPages[i].ToLower()))
{
isExists = true;
break;
}
}
return isExists;
}
}
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1 answer
Actually urlrewrite only renames the request url, but asp.net doesn't actually know anything about this change. so you will have to change something in the code so that your pages are aware of the changes. This would be the solution:
protected void Page_Load(object sender, EventArgs e)
{
form1.Action = Request.RawUrl;
}
for more information on the problem and solution check this:
http://ruslany.net/2008/10/aspnet-postbacks-and-url-rewriting/
Sincerely.
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