In an asynchronous process, I need to get the name of the domain/server the web application is running on. But in that situation HttpContext.Current is not available, so I cant use HttpContext.Current.Request.ServerVariables("SERVER_NAME").
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I've got an ASP .Net application running on IIS7. I'm using the current url that the site is running under to set some static properties on a class in my application. To do this, I'm getting the domain name using this (insde the class's static constructor):
var host = HttpContext.Current.Request.Url.Host;
And it works fine on my dev machine (windows XP / Cassini). However, when I deploy to IIS7, I get an exception: "Request is not available in this context".
I'm guessing this is because I'm using this code in the static constructor of an object, which is getting executed in IIS before any requests come in; and Cassini doesn't trigger the static constructor until a request happens. Now, I didn't originally like the idea of pulling the domain name from the Request for this very reason, but it was the only place I found it =)
So, does anyone know of another place that I can get the host domain name? I'm assuming that ASP .Net has got to be aware of it at some level independent of HttpRequests, I just don't know how to access it.
Why does HttpContext.Current.Request.Url.Host return a different URL than the URL used in the Web browser? For example, when entering "www.someurl.com" in the browser, the HttpContext.Current.Request.Url.Host variable is equal to "www.someotherurl.com".
View 1 RepliesI have IIS on S2k8 and a website with Windows Authentication only.
I can easily reproduce the following scenario, where HttpContext.Current.Request.LogonUserIdentity.Name has a bad value:
Login to website using FireFox, using an Active Directory account "user" (I could use IE to reproduce the same, but it's a few extra steps)Display <%=System.Web.HttpContext.Current.Request.LogonUserIdentity.Name%> on the pageIt shows "DOMAINuser", which is correctI go into Active Directory and rename the account to be "userX" instead of "user" (both SAMAccountName & UPN)Restart FireFoxLogin to website using "userX" accountThe page still shows "DOMAINuser", instead of the expected "DOMAINuserX"
It seems almost as if IIS has cached the old username and it's not showing me the new one, even though I explicitly enter it in the login prompt.
I have various web pages that need to build up a URL to display or place it in an emitted email message. The code I inherited had this value for the name of the webserver in a Public Const in a Public Class called FixedConstants. For example:
Public Const cdServerName As String = "WEBSERVERNAME"
Trying to improve on this, I wrote this:
Public Class UIFunction
Public Shared myhttpcontext As HttpContext
Public Shared Function cdWebServer() As String
Dim s As New StringBuilder("http://")
Dim h As String
h = String.Empty
Try
h = Current.Request.ServerVariables("REMOTE_HOST").ToString()
Catch ex As Exception
Dim m As String
m = ex.Message.ToString() 'Ignore this should-not-occur thingy
End Try
If h = String.Empty Then
h = "SomeWebServer"
End If
s.Append(h)
s.Append("/")
Return s.ToString()
End Function
I've tried different things while debugging such as HttpContext.Current.Request.UserHostName and I always get an empty string which pumps out my default string "SomeWebServer". I know Request.UserHostName or Request.ServerVariables("REMOTE_HOST") works when invoked from a page but why does this return empty when invoked from a called method of a class file (i.e. UIFunction.vb)?
When user requests http://localhost/WebApp1/Default.aspx, txtApplicationPath.Text should be assigned "/WebApp1", while txtAbsolutePath.Text should be assigned "http://localhost/WebApp1/Default.aspx", but instead both textboxes display empty strings.
[code]...
I was/am struggling with security for my first MVC applicaiton. It worked out great for me, but not for my users. I wanted to use Windows Authentication (and I seem to have that working). But when I was still trying to implement it, I was on one of our users computers where they were logged in. I navigated to the main Index page and used the supplied MVC login link and *MY* credentials. So now every time that user navigates to that page, it logs her in as me. We are using IE8, I have deleted all the cookies, passwords, forms information I can fine through Tools|Internet Options|Tool|Content|AutoComplete.
View 6 RepliesDoes anyone knows why HttpContext.Current.Server.MapPath within a server control works when I run the server control but gives and error whilst in Design mode?
View 2 RepliesI need to get the Hash value from url. Example:
Photos.aspx?area=photo&Id=2#22
Get the 22 after #.
How can this be done easily.
IN ASP.NET and not Javascript
I am trying to run this log routine in a separate thread in order to improve page load performance but I am getting an error in the line bellow: "object not set to an instance of a variable".
line error: strTempBrowser = System.Web.HttpContext.Current.Request.ServerVariables["HTTP_USER_AGENT"].ToString();
I am suspecting that Request.ServerVariables are not available during the time that the thread executes. Is there a workaround?
Page Base Class
//STATISTICS
SiteStatisticsLite sStat = new SiteStatisticsLite();
Thread oThread = new Thread(new ThreadStart(sStat.AddLog));
oThread.Start(); // Don't wait to finish, just let stat logging to occurr after page loads
public class SiteStatisticsLite
{
//SiteStatisticsLite sStat = new SiteStatisticsLite();
I have one IIS entry with AppPool integrated mode. There are 5 or more host headers assigned. The application pulls data based on the host name from Request.Url.Host. When I have 2 or more sites open at the same time the value of the Request.Url.Host is the same across all the sites. About every 30 seconds it resets itself to the correct value from the last request and shows that value on the other sites. So ultimately the sites are loading the same data. The value in the HOST server variable is incorrect as well.
View 1 RepliesI have some code that works fine when I need to delete some image files from a directory on my web server:
Dim ImageURL As String = dsImages.Tables(0).Rows(iImgRow).Item("ImageURL")
Dim physicalName = Server.MapPath(ImageURL)
oUpload.DeleteFileFromServer(physicalName, iAdid, iImgID)
.but I am running into a problem when a maintenance task running in a separate thread at set intervals determines that files like the above need to be deleted:
Dim ImageURL As String = dsImage.Tables(0).Rows(i - 1).Item("ImageURL")
Dim iImgID As Integer = dsImage.Tables(0).Rows(i - 1).Item("ImageId")
Dim physicalName As String = HttpContext.Current.Server.MapPath(ImageURL)
oUpload.DeleteFileFromServer(physicalName, iAdID, iImgID)
In this latter case, HttpContext.Current.Server.MapPath(ImageURL) has a value of Nothing.Is there a way to get the full path for this case?
We're migrating an application to use IIS7 integrated mode. In library code that is designed to work either within the context of an HTTP request or not, we commonly have code like this:
if (HttpContext.Current != null &&
HttpContext.Current.Request != null) {
// do something with HttpContext.Current.Request
} else {
// do equivalent thing without HttpContext..
}
But in IIS7 integrated mode the check for HttpContext.Current.Request throws an exception whenever this code is called from Application_Start.
protected void Application_Start(object sender, EventArgs e)
{
SomeLibrary.DoSomethingWithHttpContextCurrentDetection();
}
Results in:
System.Web.HttpException: Request is not available in this context
How can I detect whether the request is really available without wrapping these calls in an exception handler and taking action based on whether an exception is generated or not.
Looking at HttpContext in Reflector I see it has an internal bool HideRequestResponse field but it's internal so I can only get to it with reflection and that's fragile. Is there a more official/approved way to determine if it's ok to call HttpContext.Request?
This blog post about the subject says not to use HttpContext, but how, in generic library code, can you determine if it's ok to use HttpContext?
http://mvolo.com/blogs/serverside/archive/2007/11/10/Integrated-mode-Request-is-not-available-in-this-context-in-Application_5F00_Start.aspx
I'm using the work-around mentioned there which is to use Application_BeginRequest and an initialized field to only initialize once as part of BeginRequest, but that has to be done in every calling application whereas I'd prefer to make the library code more robust and handle this situation regardless of where it's called from.
Where does httpcontext.current.server.mappath start?
I don't get it... it doesn't return a path.
My webservice is ran when I debug my application :S.
I'm working with asp.net c# web application. We have completed site and hosted in dedicated server (own server).
This server having only one site (sharepoint site). A page having 1000+ images. Loading in base page. And slide show in popup page.
Base page image painting is going on. At same time popup page image is not loading up to base page paint complete. I changed popup image download to some other server means working fine.
Here my problem is same domain more than 2 request web server (iis) not responding up to first 2 requests complete. We can call 2 requests at a time. How to increase more than 2 request in ie. This problem is not available in Firefox. Firefox can manage more than 2 requests. Ie not allows only 2 requests to one domain at a time.
How to send more than 2 requests from ie to a domain?
I want to find URL from the incoming request is coming. I am giving the explanation below
Suppose a client is redriecting the request from www.xyz.com to www.abc.com/ClientInfo.aspx. Now www.abc.com is in the asp.net c#. Now i want to find www.xyz.com on www.abc.com/ClientInfo.aspx page.
I am using 3.5 .NET VB. In a code behind I am calling a page using this approach:HttpContext.Current.Server.Execute("Survey.aspx").On the survey.aspx page I have several textboxes are varying sizes. If I run the survey.aspx page alone, the textbox appear on the screen in the correctsizesettings. However, when I use the HttpContext.Current.Server.Execute method to execute the survery.aspx page from another page, the textboxes always come back a fixed width of like 200px or so. It doesnt matter what I change the size of the width to in the survey.aspx page, they are always rendered the same size for every textbox on the page. The changes do show up if I view the survey.aspx page alone though without calling it through another page so I know my syntax for changing the width settings is correct.Does anyone have any idea what causes this and how to resolve it? I am stumped.
View 2 RepliesI'm using IIS 7.0 on WS2008. I've implemented a simple login page that redirects to another simple page showing the Request.ServerVariables key/values. I'm using the built-in SQL membership provider. The website is on a DEV machine and there are no users on it.
When I login at the same time with 2 different users from 2 different locations (2 different public addresses) then one of the Request.ServerVariables page is the same as the other. That includes the client IP address which is then completely wrong. The authentication as well as the other cookies are wrong as well.
I checked the IIS log and it shows the correct client address as well as the correct login name. If I then reload the wrong page I get the correct data. Is there some concurrency issue in ASP.NET? I disabled the session and caching but I still get the same behaviour.
Both returns the incoming url, Just to know When to use Request.UrlReferrer and when Request.ServerVariables["HTTP_REFERER"] and why?Currently, in one of my application Urlreferrer is working in my local machine but its not working when went live?Additionally, its most appreciable if anyone can guide any alternative of both Urlreferrer and HTTP_REFERRER?
View 1 RepliesI have a static class with serveral static methods. In these methods, I'm trying to access the current thread's context using HttpContext.Current. For example:
var userName = HttpContext.Current.User.Identity.Name;
However, when I do that, I receive a NullReferenceException, the infamous "Object reference not set to an instance of an object."
My web application is hosted on a loadbalanced and whenever the requests are routed to one of them(say Server B), the request fails. Now I want to redirect my requests to the working server (Server A) which always works.
I want to do it via the HttpContext.Current.Server = "ServerA";
How can I do this. Do I need to create a new HttpContext Object ?
I am developing an internal application in .NET which tracks computer name and give access only if they match users which are in a users table in database. When i tested in my local machine and in production server, I am able to get computer name. But for few users the application just don't work since Request.ServerVariables["REMOTE_USER"] is returning empty values. For myself and even for few users we can get computer name with Request.ServerVariables["REMOTE_USER"] but for few users it returns empty values.I even tried using Request.ServerVariables["LOGON_USER"] and WindowsIdentity funtions, but still getting empty values.
View 3 RepliesI have also installed SSL on a subdomain. I have put payment page under this sub domain.
View 4 Repliesi'm using an example in which i can fake the session.It's for use in a unittest of a mvc controller.In the test i create a controller and then i do this:
FakeHttpContext httpctx = new FakeHttpContext(null,null,null,null,mSessionItems );
ControllerContext ctx2 = new ControllerContext(httpctx,new RouteData(), target);
here mSessionItems is my session and target is my instance of a controller,and indeed, when i'm in a controller reading this.ControllerContext.HttpContext.Session, i have a session, great!but.... i also read the session outside the controller, and there i use HttpContext.Current.Session, and that is null (or actualy, the HttpContext.Current is null).
I have been experimenting with code that will clear all of the cookies in an HttpContext.Response.Initially, I used this:
DateTime cookieExpires = DateTime.Now.AddDays(-1);
for (int i = 0; i < HttpContext.Request.Cookies.Count; i++)
{
HttpContext.Response.Cookies.Add(
new HttpCookie(HttpContext.Request.Cookies[i].Name, null) { Expires = cookieExpires });
}
this will error with an OutOfMemoryException because the for loop never exits - each time you add a cookie to the Response, it also gets added to the `Request.
