Forms Authentication: Disable Redirect To The Login Page?
May 15, 2010
I have an application that uses ASP.NET Forms Authentication. For the most part, it's working great, but I'm trying to add support for a simple API via an .ashx file. I want the ashx file to have optional authentication (i.e. if you don't supply an Authentication header, then it just works anonymously). But, depending on what you do, I want to require authentication under certain conditions.
I thought it would be a simple matter of responding with status code 401 if the required authentication was not supplied, but it seems like the Forms Authentcation module is intercepting that and responding with a redirect to the login page instead. What I mean is, if my ProcessRequest method looks like this:
[code]....
Then instead of getting a 401 error code on the client, like I expect, I'm actually getting a 302 redirect to the login page.
For nornal HTTP traffic, I can see how that would be useful, but for my API page, I want the 401 to go through unmodified so that the client-side caller can respond to it programmatically instead.
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Dec 1, 2010
I have my website in which there are free links and links that require login. Free links open even if the user is not logged in. But in case of links that require login, redirect to login.aspx specified in Web.Config in loginURL tag.
I want some way to override this and show Ajax modal popup (Ajax extender toolkit) with login control for only thos links that require login (not for the free links).
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Mar 21, 2011
In an asp.net mvc website, the site has enable forms authentication. The form login page is located in an area such as:
Area: Area1, Controller: Account, Action: Login
When a user is not yet authenticated and click on a link that requires authentication, the user is redirected to the login page. This does occur and redirect to the login page specify above. However during debug, it was found the area value is not included in the RouteData.Values object. That is, the RouteData.Values object has ONLY the follow value:
Controller: Account
Action: Login
In this case, it is presumed that the MVC application by default searches for the appropriate controller and action without consideration for including the area value. On contrast when I direct click on a link that directs to login page, all processing occurs as expected, i.e. the area value is included in the RouteData.Values object. Is there a work around for this?
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Aug 14, 2010
The default document feature is turned off in IIS and here's the situation... My start page for my project say is A.aspx. I run the project and sure enough, A.aspx appears in the url of the browser. Like it should though, A.aspx finds no user logged in and redirects to Login.aspx like it should. A.aspx:
if (Session["UserStuff"] == null)
Response.Redirect("~/Account/Login.aspx");
The login.aspx shows up BUT when the user Logs in, the code:
FormsAuthentication.RedirectFromLoginPage(txtUserName.Text, true);
always redirects to "Default.aspx" and not "A.aspx"
I've examined FormsAuthentication.GetRedirectUrl and sure enough it returns "Default.aspx"
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May 26, 2010
I need to create an application with Forms Authentication and/or Windows Authentication. If the application is set to use mixed authentication (Forms + Windows Auth) and the user don't have a Windows user account, the login will fail and he must be redirected to a forms login page. How can I do this?
Are there any different way to provide mixed authentication?
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Aug 25, 2010
I have a home page that is very design-specific, down to the pixel. It needs to have username/password/login, but I can't have it showing any error messages there. There is a separate standalone login page that is not design-specific and can show any messages. It's using the standard Login control.Is there an easy way to link the two so that if an error occurs on the home page the standalone page comes up with the errors?
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Sep 25, 2012
am creating a web application in using c# with asp.net.
in that am using login page only as normal aspx page. other pages are using masterpage.
when i click logout button in masterpage. page will redirect to login page. after that if i click browser back button it was moving to previous page. how can i prevent this.
am using this following code in master page aspx page. And My log out button code is below.
<%if (!Page.User.Identity.IsAuthenticated)
{ %>
<script type = "text/javascript" >
function preventBack() { window.history.forward(); }
setTimeout("preventBack()", 0);
window.onunload = function() { null };
</script>
<%} %>
But exactly what i need is once if login page loaded or logged out then it wont go to previous page.
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Jun 29, 2010
In asp.net we specify the redirect url when using forms authentications like this:
<authentication mode="Forms">
<forms name="myApp" loginUrl="Login.aspx" protection="All" defaultUrl="default.aspx" path="/" requireSSL="false"/>
</authentication>
this means that when a user log in, will be redirected to "default.aspx" using this method
FormsAuthentication.RedirectFromLoginPage(IDTextBox.Text, RememberCheckBox.Checked);
Now is it possible to make the user choose which page to be redirected to prior to login? for example the user chooses from a list the page to login to prior to login then when authenticated be redirected to this page instead of the default.aspx page. is that possible and if so how can this be done?
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Mar 21, 2011
I Have a login page and I want to disable the menu options from my master page.
I have come across the following code:
[Code]....
But when I put this into the page load it gives me syntax errors stating menu is a type and cannot be used as an expression.
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Feb 23, 2010
I want to redirect to login page when any page is idle for 5 minutes and after re login I want to redirect to the page user is earlier in .
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Jul 17, 2015
I have created an order checkout page.when i click checkout button then it check user login or not if not then it redirect to login page .after login i want to show
my previous link page
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Nov 29, 2010
I am a beginner of asp.net..I currently have a login page with forgot password link button on the bottom of the screen. I am also using forms authentication to prevent an unauthorized user from accessing the other pages. The authentication seems to be working fine except for one thing. It prevents the user from accessing the password recovery page once the user click on the link button. How do I allow all users access to the login/password pages and also prevent them from viewing the other pages if they are not authenticated?The code below is to prevent from other anonymous view other pages without access. But i got no idea on how to allow them to access password recovery page...
<authentication mode="Forms">
<forms loginUrl="/Presentation/Display/Login.aspx" name=".ASPNETAUTH" protection="All" path="/" timeout="120" cookieless="UseDeviceProfile" slidingExpiration="true"/>
</authentication>
<!-- This section denies access to all files in this application except for those that you have not explicitly specified by using another setting. -->
<authorization>
<deny users="?"/>
</authorization>
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Jun 18, 2010
I have 1 master page and Home.aspx page. Home.aspx page is using the master page.. In master page i have two textbox and and menu control and button. Textbox are used for login and password. by default Home.aspx opens.....Now when user login then i check the user exist of not in my master page codebehind and then redirect to Home.aspx but this time i want the textbox and button not to be visible. In master page i used session to store the login is true or not and the usertype and then redirect to Home.aspx. but i am not able to use the session.
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Mar 30, 2010
I use with the code below. But i've got 2 login screens, but both should redirect to another page. But he always takes the page in the web.config. so how can i change that page when i push the login button? What should i change to the function below? The normal page redirects to: ~/shoppingcard.aspx But i want to redirect the function below to : ~/shoppingcard.asxp?p=2
protected void Login1_Authenticate(object sender, AuthenticateEventArgs e)
{
if (Membership.ValidateUser(Login1.UserName, Login1.Password))
{
FormsAuthentication.RedirectFromLoginPage(Login1.UserName.ToString(), false);
}
}
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Aug 12, 2010
i have one website (asp.net static pages and one login page) hosted on one server (x hoster) ..in that web site i have login page... i have another another server where i hosted the database and my asp.net application...( y hoter)the database is same for both applications...how to redirect my login members from website 1 to website 2..i am maintaing some sessions on website1 , when credentials checked..once the login successfully i need to redirect the member to my second website..
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May 7, 2015
I want to redirect after successfull login. When the user is validated, i want to redirect to another page called "Main.aspx".
protected void ValidateUser3(object sender, EventArgs e)
{
int userId = 0;
string constr = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
[Code].....
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Dec 9, 2010
I have seen numerous posts with this problem, however none of the solutions have worked for me. I am using asp.net 4.0 forms authentication. I have the following set in my config file.
<authentication mode="Forms">
<forms loginUrl="~/Account/Login.aspx" />
</authentication>
<authorization>
<deny users="?"/>
</authorization>
The login.aspx page uses a master page and styles in a stylesheet located in a folder off the root directory called 'Styles'. I have also add the following to my config file.
<location path="~/Styles">
<system.web>
<authorization>
<allow users = "*"/>
</authorization>
</system.web>
</location>
When the page displays, the login page displays with the master page content, however all of the styles are missing. When I embed styles into the master page the styles show properly, so I know the problem is that the styles are not being accessed from the file. how I can authorize access to the stylesheet?
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Nov 19, 2010
I've a got an Asp.Net site that is using Forms authentication, I've also got custom errors configured in the web.config. One of these is a special error page for 403's (access denied). My question is how do I get Forms authentication to work smarter?
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[code]....
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Mar 2, 2011
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Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Session("userid") = Nothing Then
Response.Redirect("login.aspx")
End If
End Sub
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configuration why redirection doesn't occur? Remember I am trying this with New Web site template with no mods so I don't think config issue is within application code.
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How to create login authentication page using cookies in ASP.NET with C#?
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Nov 9, 2010
sir when any connction or error or exception generated in a page then control will go to where(which section)in the web.config file. i have to create a page when any exception or error or connection fails occurs from that it will redirect to login page so what code i have to write under web.config file pl tell me?
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Apr 26, 2013
I have made a web page in which there is login screen when user login it goes next page but my problem is if i directly enter the url of that page it open. I want it should not open unless the user log in...
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