I am making a small file hosting website, and each user can upload multiple files, and will have access to just his files and can't access others files, for example by guessing the URL. Is there a way to secure files to have access by just the owner and no body else "may be website administrator also will have access"
View 3 Repliesi have been writing a music website for my customer using ASP.NET. Everything has been cool except I don't know how to prevent the users from downloadng the song which is being played. For example, I click "Heal the world" to play and while the song is playing, I dont't want the IDM download manager or other download programs appear the download dialog
View 5 RepliesFor a church website I'm managing, there is a need to place audio files (sermons) on the website. There will be two categories of audio files; one will be a sample size of the audio file, around 5 minutes in length. The other will be the full-length of the sermon (30-50 +/- minutes).
I have decided the best setup would be to place the audio files on the server. I would then store the audio information, as well as the path to the audio file, in a database. I had thought about placing the audio files in the database as a BLOB, but it seemed inefficient. My concern, is with tools like Mozillza plug-in "Download Helper" , it is so easy to simply grab the media files off the server. This would not be a big deal, except we want to sell the full-length audio files. I am running ASP.NET 3.5 on IIS 7.
I have directories in my website which require authentication.
But when i type the url with the directory name it lets me see the files but doesnt allow access as users need to login.
How can i stop users viewing files if they manually type directory name in?
I am trying to find a way to prevent a PDF from being printed or downloaded when view from web. Also, it is prefered that user cannot Print screen.
According to the required futures, it will cose a lot to create a desktop application from scratch.
I am thinking about converting those PDF files to Flash.
My Visual Studio 2005 program doesn't open CSS files properly - when I open them in VS, it opens them as a text file. It is annoying because if I do something wrong, it doesn't show up the error and I have to sift through it all to try and find out what is wrong. Plus it doesn't show up the hints for the attributes.
View 5 RepliesI have an ASP.NET/C# application that exports some data into an Excel spreadsheet using COM interop at the click of a Button control. When I click the button, Excel is opened with the generated spreadsheet. For what it's worth, here is the button code:
<asp:Button ID="export" Text="Export to spreadsheet" runat="server" OnClick="Export_Workbook" />
This works fine, except when I click the button, close the subsequent spreadsheet, and refresh the page. When the page is refreshed after clicking the button, the call to Export_Workbook() is made again and so the spreadsheet opens again. Firefox, for example, says this when you refresh: "To display this page, Firefox must send information that will repeat any action (such as a search or order confirmation) that was performed earlier." This is something I want to avoid.
I'm sure there's a better way to accomplish what I'm trying to do, I'm just not sure what the best approach is.
Edit
I've accomplished this by doing the following:
protected void Export_Workbook(object sender, EventArgs e)
{
Response.Redirect(Request.Url.AbsolutePath, false);
ItemList.Prepare_Workbook();
}
Page:
[code]....
This code opens me a dialog box with Ok and Cancel button but it do not wait for user activity and post the page immediately and the label gets populated. I need to call the c# function based on user activity. If user clicks "Ok" label should get populated and if user clicks "Cancel" it should not call the c# function. How do I achieve this?
we are working on a file download page. We want to download a file with a name with spaces and accents. Although the filename is shown correctly on the filedownload dialog, when we click open, the file name is shown with %e1%ba%a3n%20... on notepad. ('Save as' shows the correct name) This problem only happens in Internet Explorer.
Is there anyway we can Display the file name correctly (on the target application) after opening it (without saving) from file download dialog ?
We use this code to set the filename :
fileName = Server.UrlPathEncode(fileName);
Response.AppendHeader("Content-Disposition", "attachment; filename="" + fileName + """);
How to prevent multiple browser windows opening in asp.net ...
View 1 RepliesI need very advanced and effective method of Preventing Users from Downloading file from website directly in asp.net.
Method should -
limit downloads,
limit time,
limit requests,
etc.
but should be downloadable by active login users
The majority of files in the Temporary ASP.NET File folder for a given application get deleted by ASP.NET following compilation -- .DLL and .PDB files amongst others remain.
Our compiler produces proprietary debug information files which are amongst those that get deleted.
Marking the files read-only prevents this but are there other options available?
I'm new to this forum, infact this is the first forum i hav ever joined. I need some help urgently as i'm reaching the deadline of my project.I created an asp.net website, where administrator will upload files to SQL database which is connected to the webpage. From the web page there will be a download link to download those uploaded files. I have been successful in uploading files to the database. But nothing is striking in my mind regarding how to download files directly from database using asp.net C#.
View 11 RepliesI'm working on a project that requires the ability to let a user download a pdf from a static location on the server. I'm reading the instructions from this website, it's an old post and I notice they specify in an update that Microsoft's MVC framework has long since included and Action Result that allows the same functionality they discuss thus rendering it obsolete, I've looked a bit online but haven't been able to find any resources that discuss this built-in functionality.
View 4 RepliesI got file names in an ArrayList say my _files. What i want to do is that i want to download files in
zipformat when an user presses a back say "download now".
i made a file uploader to folder named (Books) and i saved the name and the bath of the uploaded file to my DataBase but when i wanna download the uploaded file from the server ? how i make it ? by hyperlink ?
View 3 RepliesI am working on some project where I am needed to allow users to upload files, but only in pdf and .doc format. Now I know how to let users upload files, but I do not know how to check whether an uploading files is pdf and .doc or not. How could I know that? And how could I know the size of each file, for the file should be no greater than 3 MB?
Also, I have alloted a separate folder for the files that are uploaded by users. I have one page that displays the links to download the files in that folder. I needed to know how could I keep the track of the folder, for the files get uploaded every time? Or in other words, how could my 'downloads page' know about the files in that folder and create links for each file in that folder for the download? Also, if I create a link of a file for downloading purposes, will the file be downloaded when one clicks the link?
I have ASP.NET page with an iframe on it for displaying some pdf reports on this page. When user select the report type from dropdown, I add the needed for report data into the ASP.NET Session and change the attribute "src" of the iframe to .ashx module address which generates the .pdf report.But if Adobe glug-in for viewing .pdf files in browser is not installed, browser proposes to save report file and name of the proposed file is "HandlerName.ashx".But I want to make the browser proposed to save the file with the name "Report.pdf".
View 3 RepliesI'm working on a reporting script which runs a number of reports (pdf) on button click. The reports are created on the web server then I'd like the user to be given the option to download the files. I have worked out the script for downloading one file from the server. But I'm not sure how to download multiple files? (there will probably be about 50)
After I run one report I redirect the user to a http handler script.
Response.Redirect("Download.ashx?ReportName=" + "WeeklySummary.pdf");
public class Download : IHttpHandler {
public void ProcessRequest(HttpContext context)
{
[Code]....
I used this sample to work around the issue we were having with large files. [URL] Unfortunately, when I attempt to download large files of 30MBs or more, the download times out and the user gets a partial download. It doesn't seem to be a consistant percentage of the download either. I attempted to download a 50MB file and got to 33MB. When trying a 30MB file, I downloaded 24MB.Below is my code.
if (File.Exists(strFilePath))
{
fileName = System.IO.Path.GetFileName(strFilePath);
Response.Clear();
system.IO.Stream iStream = null;
byte[] buffer = new Byte[10000];
int length;
long dataToRead;
try
{
iStream = new System.IO.FileStream(strFilePath, System.IO.FileMode.Open,
System.IO.FileAccess.Read, System.IO.FileShare.Read);
dataToRead = iStream.Length;
//FileInfo file = new FileInfo(strFilePath);
Response.ContentType = "application/octet-stream";
Response.AddHeader("Content-Length", iStream.Length.ToString());
Response.AddHeader("Content-Disposition", "attachment; filename=" + fileName.Replace(" ", string.Empty));
while (dataToRead > 0)
{
if (Response.IsClientConnected)
{
length = iStream.Read(buffer, 0, 10000);..................
I created a HttpHandler for downloading files from the server. It seems it is not handling anything...I put a breakpoint in the ProcessRequest, it never goes there.
public class DownloadHandler : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
//download stuff and break point
}
}
It never stops there, as mentioned. I also registered it in the web.config.
<add verb="*" path="????" type="DownloadHandler" />
I am not sure about the path part of that entry. What do I have to enter there? I am downloading txt files, but the URL does not contain the filename, I somehow have to pass it to the handler. How would I do this? Session maybe?
I am a very new programmer.. A website is providing a lot of zip files that i needed. It will be updated/uploaded new zip files weekly. What I need to do is write a program/script to do auto downloading from the web weekly.. for example, this is the web link
http://www.google.com/googlebooks/uspto-patents-applications-yellowbook.html ( you can see a lot of zip files there )
so my question is What script i have to write(i got no experience in writing any script, so what can you suggest?) so i can download the zip file programmatically? then how should i make it to download the new zip file uploaded weekly?Is it i have to use DOM...unix? if yes, i will do some research on tat to make it work.
i created a website that allows the user to download a file from a ftp server.
i can get the file to download perfectly to a specific location on the clients pc but
my problem is that i cannot get the file to download to the default path or the browser or prompt the user to choose a location to save the file.
is there anyone who knows how i can either prompt the user to save the file in a location or even get the file to download to the browsers default downloads path
In my application I have a requirement where the client/user needs to download video files from the server to their local machine.
View 1 RepliesI want to view the existing files in a directory which is "~/Images". Now the code below works fine and it shows the files (with its name and other details) in this directory very well in a data grid. The name is a hyperlink, but when I click on it, it tries to view the file in "~" (i.e current working directory) instead of "~/Images" and therefore reports the server error as - "file not found".
Also, how to implement if I want the save as option when I click on the file, so that I could save it directory locally instead of viewing it in browser?
VB Code-
Imports System.IO
Partial Class uploaddoc
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim dirInfo As New DirectoryInfo(Server.MapPath("~Images"))
articleList.DataSource = dirInfo.GetFiles("*.gif")
articleList.DataBind()
End Sub
End Class
HTML (ASP.NET) Code -
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="uploaddoc.aspx.vb" Inherits="uploaddoc" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@ Import Namespace="System.IO" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:DataGrid runat="server" id="articleList" Font-Name="Verdana"
AutoGenerateColumns="False" AlternatingItemStyle-BackColor="#eeeeee"
HeaderStyle-BackColor="Navy" HeaderStyle-ForeColor="White"
HeaderStyle-Font-Size="15pt" HeaderStyle-Font-Bold="True">
<Columns>
<asp:HyperLinkColumn DataNavigateUrlField="Name" DataTextField="Name"
HeaderText="File Name" />
<asp:BoundColumn DataField="LastWriteTime" HeaderText="Last Write Time"
ItemStyle-HorizontalAlign="Center" DataFormatString="{0:d}" />
<asp:BoundColumn DataField="Length" HeaderText="File Size"
ItemStyle-HorizontalAlign="Right"
DataFormatString="{0:#,### bytes}" />
</Columns>
</asp:DataGrid>
</div>
</form>
</body>
</html>