I would like to use Server.UrlEncode in .ashx.
I try with the following code.
HttpServerUtility ser = new HttpServerUtility();
ser.UrlEncode(pfile.FileName);
That's wrong but however I would like to use Server.UrlEncode so let know the way.
In ASP:
Server.URLEncode("+&(). -*<>/|")
' returns %2B%26%28%29%2E+%2D%2A%3C%3E%2F%5C%7C
In ASP.NET
Uri.EscapeDataString("+&(). -*<>/|")
// returns %2B%26().%20-*%3C%3E%2F%5C%7C
HttpUtility.UrlEncode("+&(). -*<>/|")
// returns %2b%26().+-*%3c%3e%2f%5c%7c
Is there any elegant way how to mimic old ASP behavior in ASP.NET?
So I have a Hyperlink called lnkTwitter:And I'm trying to set the url in the code behind:lnkTwitter.NavigateUrl = string.Format("http://www.twitter.com/home?status={0}", Server.UrlEncode("I'm Steven"));When I do that and hover over the link, the url displays correctly in the status bar as "http://www.twitter.com/home?status=I'm+Steven", but the actual url, if I click on the link or look at the link's properties, is "http://www.twitter.com/home?status=I%27m+Steven".For some reason, this only happens in Firefox; in IE, I am taken to the correct url.
View 3 RepliesFor protect against XSS we should make all input from textboxes thoht Server.Htmlencode function.
1) If i let a input go thorgh Server.Htmlencode and save it in database. But what happen if i letter show this input data from database on browerser ...if database input data have <script> it will then make Xss!!!!.
2) I use Server.Htmlencode.. and the user write <b>ss<b>... (label.text = userinput.text;) and i WANT to show ss in browser. What shuld i do for make this happen ??
I have two page
1-index.aspx
protected void ImageButton3_Click(object sender, ImageClickEventArgs e) {
string data = Server.UrlEncode(txtNumeric.Text);
SqlCommand _cmd = new SqlCommand("traidname", _cn);
_cmd.CommandType = CommandType.StoredProcedure;
_cmd.Parameters.Add("@BehCode", data);
[Code] ....
Here I use textbox .text for server.urlEncode according to this code it go to tName + "?BehCode=" that
SP
ALTER procedure [dbo].[traidname]
@Behcode nvarchar(30)
as
begin
select T_name
from House_Info
where Behcode=@Behcode
end
And this is code in my destination(depending to tname column in house_info tabel) page
I use below code to bind data from database in destination pages
string data = Server.UrlDecode(Request.QueryString["BehCode"]); _cmd.Parameters.AddWithValue("@behcode", data);
Now in index.aspx page i have linkbutton that i want when users click on it, it do something like
ImageButton3_Click event
This is my datalist code that linkbutton is in this datalist
<asp:DataList ID="DDLstore" runat="server" RepeatColumns="3" RepeatDirection="Horizontal" "> <ItemTemplate> <table class="DDL2h"> <tr> <td style="height: 35px"> <asp:Label ID="Label3" runat="server" Text='<%# Eval("Name") %>' CssClass="TDnameH"></asp:Label> </td> <tr> <td> <asp:LinkButton ID="LinkButton2" runat="server" CssClass="LBP2" onclick="LinkButton2_Click">see all product</asp:LinkButton> </td> </tr> </table> </ItemTemplate> </asp:DataList>
Now how I can write code for linkbutton event that do same thing like ImageButton3_Click event?
and notice that both linkbutton and imagebutton are in index.aspx page ...
Server.UrlEncode("2*")return 2*while it should return 2%2Aas tested on this demo site
View 2 RepliesI have created file upload funactionality along with progress bar in my project for this. I have referred following jquery tool you can see here.[URL]with the respective funcationality. i have created one .ashx file for string file on server but when i try to store file on server it gives me error.Could not find a part of the path so i put whole path in the respective code but still i m getting some error. my code is
sfilenamestored = ("\Users\dev5\Desktop\DataAccessLayer\PresentationLayer\"+"/Uploaded_Document/" + upload_files.foldername.ToString()) + "/" + GetUniqueKey() + file.FileName;
I'm trying to take an existing bunch of code that was previously on a full .aspx page, and do the same stuff in a .ashx handler.
The code created an HtmlTable object, added rows and cells to those rows, then added that html table the .aspx's controls collection, then added it to a div that was already on the page.
I am trying to keep the code in tact but instead of putting the control into a div, actually generate the html and I'll return that in a big chunk of text that can be called via AJAX client-side.
HtmlTable errors out when I try to use the InnerHtml property (says it isn't supported), and when I try RenderControl, after making first a TextWriter and next an HtmlTextWriter object, I get the error that Page cannot be null.
I'm using an .ashx handler to retrieve an image file... It queries a local database, which retrieves the URL of an image which is hosted on Amazon S3.
But I can't use context.response.write(AmazonS3URL) because it returns the error '...is not a virtual path'.
Can context.response.write only return files that are on the local machine? Or is there another function to call remote files?
i want to build a custom control using javascript on client side and ashx on server side.
I know about SWFUpload, how can i configure it with ashx on server side.
any tutorial how i can use FLASH objects to transfer files from client to server. i been looking for such tutorial for a while that uses flash object on client side and sends file info using bytes array to the server. also i want to reduce the size of the file on the client side before sending to safe bandwidth.
basically my client side is pure HTML/CSS/Jquery and Javascript using Ajax and my server side is ASP.NET with C# and most ASHX
I have a 3.5 app with a subfolder containing numerous documents. I want to control access to all files in this subfolder via an ASHX handler. My file system looks like this:
/Default.aspx
/web.config
/Filecabinet/Filecabinet.ashx
/Filecabinet/web.config
The content of the web.config in the files folder is simple:
[Code]....
This works fine on my WinXP / IIS6 developement box, but doesn't work at all when I upload it to my IIS7 / shared hosting account (GoDaddy). I know it doesn't work because I can access every file in the subfolder - the restrictions I wrote in my ASHX code-behind aren't taking affect at all.
i have a requirement to encode the url in javascript and in redirected page i can't use javascript so i must decode the url back in code. so i needs a javascript encode method which encodes url like URLEncode method of asp.net so that i can decode it in code with UrlDecode method
View 3 RepliesI have spent quite a bit of time researching this here on Asp.Net's Forums, but also on the web in general, and I am still drawing a blank.
The problem: I am trying pass a values such as ... "Jacob's Carpentry" as a query string to another page. However, the other pages keeps seeing "Jacob\s Carpentry".
What I have tried: I have tried using both the Server.UrlEncode and HttpUtility.UrlEncode, and neither have worked. I have also tried using them twice as was suggested in this article, but still with no luck. Finally, I went so far as to try and encode the string, but then do a String.Replace on the " ' " apostrophe and substitute with a "%27". This also did not work, as it appeared that the String.Replace wiped out the encoding.
So I am stuck/lost. It appears the standard PHP functions easily encode the apostrophe, but for some reason the .Net function isn't working.
Here is the code I am using ...
[Code]....
I notice, however, then if I put a breakpoint where the PostBackUrl is set, the encoded string is still only showing "Jacob's+Carpentry", no %27.
Cat.net is nabbing the following code, but I tried to use UrlEncode, but I am getting a http 400 bad requestencodedLink = Default2.aspx%3freturnURL%3d~%2fDefault.aspx
[Code]....
What is the best way to encode the url in Hyperlink without writing code behind. I have many uses and I would like to do it in the Hyperlink statemeent if possible. Some thing such as the following would be great:
(This does not work)
<asp:HyperLink
ID="HyperLink1"
NavigateUrl=
"<%=UrlEncode(~/All_Videos.aspx?tag=full length movie&title=The Movie)%>"runat="server">Movies</asp:HyperLink>
According to old AntiXss article on MSDN AntiXss.UrlEncode is used to encode link href (Untrusted-input in the following example):[URL]My understanding was, that UrlEncode should be used only when setting something to URL, like when setting document.location with JS. So why don't I use HtmlAttributeEncode in the previous example to encode [Untrusted-input]? On the other hand is there a security flaw if I use UrlEncode to encode HTML attributes like in the above sample?
View 1 RepliesI got an ashx file to create an image. I am referencing it via web.config like this:
<add verb="*" path="captcha.ashx" validate="false" type="eVoila.Security.Captcha.CaptchaImageHandler, eVoila" />
My handler looks like that:
[Code]....
Actually the handler never gets called. I already searched the forums and tried some tips and hints. But nothing of that worked. Try to call the url via[URL]
Can u explain me what ASHX HttpHandler uses for?
View 7 RepliesThere is an ashx file containing "ProcessRequest(HttpContext context)" method which gets triggered automatically. When and how does it get fired?Another question, How can I get the current QueryString when I am inside this file? When I type "context.Request.QueryString" it says it's null or empty although the address have arguments.
View 1 RepliesI've got a simple ASHX handler that returns an dynamically generated image; the image is generated from a custom created class, and an object belonging to this class is passed to the handler using Session (I'd rather avoid using QueryString).The handler is used as the URL of an image on a ASP form which is very simple: a drop down list, a button and an image. Basically, depending on what the user selects from the list, the appropriate image will be generated once the button is pressed.
At the start the actual image has it's Visible property set to false; I don't want the handler to display anything before the data is all there.Once the button is pressed, the required Session parameter is added containing the necessary object, and the page is refreshed using Server.Transfer. When the Page_load method detects that the Session parameter has been correctly set, it sets the Visible parameter on the image to true.After that the handler fires up and generates the image.
So far so good... However, if the user now picks something different from the list and presses the button, despite the correct object being passed in the Session, the image won't be updated. In fact, the handler won't even fire up (if I put a breakpoint in there). I need to close the browser window and reopen it for it to work.Any ideas what could be the cause of such behaviour?I suspect the answer is very simple, and I just don't know something fundamental about ASP (or handlers)...
In my web application I use an ashx file to write a file to the browser. I've noticed that there's no compression over the .ashx file, but only over my .aspx files.
Is it possible to compress .ashx? And if it is possible, how?
Currently I use global.asax to handle the compression:
<%@ Application Language="C#" %>
<%@ Import Namespace="System.IO" %>
<%@ Import Namespace="System.IO.Compression" %>
<script runat="server">
void Application_PreRequestHandlerExecute(object sender, EventArgs e)
{
HttpApplication app = sender as HttpApplication;.......
As you can see only files which inherit from 'Page' are compressed, and my ashx file is not of type Page. So I added a condition and now it works just fine:
if (!(app.Context.CurrentHandler is Page ||
app.Context.CurrentHandler.GetType().Name == "SyncSessionlessHandler" ||
app.Context.CurrentHandler is ViewMht // This is the type I had to add
) ||
app.Request["HTTP_X_MICROSOFTAJAX"] != null)
return;
What is the Difference betweeen axd and ashx handlers.
View 3 RepliesMy web site has a handler (FileDownload.ashx) that deals with all file download requests. I've recently migrated my site to ASP.Net 4.0, and it now uses routing extensively. Everything works fine when dealing with page requests (aspx), but it's not working with my handler - I encounter the following error:
Type '<snip>.Handlers.FileDownload' does not inherit from 'System.Web.UI.Page'.
This makes sense, as routing is only implemented in the page. So, my question is, what steps do I need to take to be able to use routing and my ASHX together? I want to be able to extract RouteData.Values from the url.
public class FileDownload : IHttpHandler
{
}
sitemap is at: http://localhost/scirranew/sitemap.ashx
<%@ WebHandler Language="C#" Class="SiteMap" %>
using System;
using System.Web;
[code]...
i have a handler(.ashx) that returns an html . i want to call the handler in .ashmx(webservice). how do i call it?
View 1 Replies
