I am building a web application using WCF. I need to full path of a file to open and upload it to web service.
What I am doing is first opening a file by its full path, then take stream of it and finally upload it to service. My code is below
string Path = Server.MapPath( FileUpload1.PostedFile.FileName);
System.IO.Stream fileStream = File.OpenRead(#Path);
I can't get full path of the file for security reasons.
How can I read the file that users select?
Server.MapPath(FileUpload1.FileName) is the path to a file on the server. You cannot get the full path of the client machine of the file Using the FileUpload.
There is no need for the full client path to access it. You can use the FileBytes
property in order to read the contents of uploaded file.
As others have already suggested there's no reason you need the file path to the client in order to save a file on your server. In the case you need some clearer explanation for this, then please refer to these answers:
https://stackoverflow.com/a/3077008/2196675
https://stackoverflow.com/a/1130718/2196675
I'm using FileUpload.SaveAs() function of C# to upload files to the server but I want to save the files on another partition. Let us say, save the files on Drive D of the server instead on the current drive which is Drive C. Please share your thoughts. Thanks is advance.
I have learned that using full path such as
FileUpload.SaveAs("D:\FileUpload");
will save the file outside the web server.
Check this out.
To simplify the question, how can I upload files on the other partition of the server that hosts my web app?
Based on the documentation from http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.fileupload.saveas.aspx, the String filename is the full path name of the location to save. Meaning you should be able to do so e.g:
FileUpload.SaveAs("D:\where_you_want_to_save")
By the way what have you tried and what error did you get?
Looking at the example on MSDN, it would appear that .SaveAs() accepts a fully qualified file name as a parameter. You could potentially use a Path object to cleanly build a path for the file, or just specify one directly as a string:
uploader.SaveAs("d:\\someFolder\\someFile.ext");
Resolved this by using Virtual Directory of IIS and providing admin credentials for authentication
I am working on a web application which uses the FileUpload control. I have an xls file in the full filepath 'C:\Mailid.xls' that I am attempting to upload.
When I use the command
FileUpload1.PostedFile.FileName
I cannot get the full filepath from my system. However, when I use the above command in another system it works fine.
I also tried the following commands with no success:
System.IO.Path.GetFullPath(FileUpload1.PostedFile.FileName);
Path.GetFileName(FileUpload1.PostedFile.FileName);
System.IO.Path.GetDirectoryName(FileUpload1.PostedFile.FileName).ToString();
Convert.ToString(System.IO.Directory.GetParent(FileUpload1.PostedFile.FileName));
How can I get full path?
It's currently true that "when you upload a file the browser will only send the source filename and not the full path" - it makes perfect sense that the server has no business knowing whether the file was in "C:\WINDOWS\" or "F:\SOMEDIR\OTHERDIR\PERSONALINFO\". The filename is always sent, and is useful both to help the user 'recognise' the content and possibly to interrogate the file extension to help determine the file type.
However I know from experience that Internet Explorer definitely used to (in older versions) send the entire path. It's difficult to find an authoritative confirmation (except this apache fileupload control doco)
Internet Explorer provides the entire path to the uploaded file and not just the base file name
Regardless, you should not use nor expect the full path to be sent by any 'modern' browser.
Perhaps you misunderstand the way FileUpload works.
When you upload a file, it is effectively being transferred from the client's computer to the server hosting your application. If you're developing the application, most times, both client and server are the same machine (your computer). Once the application is deployed however, there could be any number of clients connecting to the server, each uploading a different file.
Knowing the full path of the file on the client's computer usually isn't necessary - you'll often want to do something with the file contents. Your examples seem like ASP.NET C#, so I'm guessing you're using the FileUpload control. You can get at the uploaded file's contents by reading the raw stream (FileUpload.PostedFile.InputStream) or by saving the file first (FileUpload.PostedFile.SaveAs), then accessing the saved file. It's your responsibility to save the file, if you want it to be accessible after the current request - if you don't, ASP.NET deletes it.
One more thing - don't forget to set the enctype property on your form to "multipart/form-data". If you don't, the client's browser won't send the file, and you'll spend quite a few minutes wondering what went wrong.
Try
Server.MapPath(FileUpload1.FileName);
Edit: This answer describes how to get the path to a file on the server. It does not describe how to get the path to a file on the client, which is what the question asked. The answer to that question is "you can't", because modern browser will not tell you the path on the client, for security reasons.
As of IE8, the full path is no longer sent to sites in the Internet Zone.
See the "File Upload Control" section at the end of this post: http://blogs.msdn.com/ie/archive/2008/07/02/ie8-security-part-v-comprehensive-protection.aspx for discussion.
FileUpload will never give you the full path for security reasons.
Convert.ToString(FileUpload1.PostedFile.FileName);
IE 7 and previous versions sent the full path of the uploaded file to the server related to the input type="file" field. Firefox and other modern browsers consider this to be a security flaw and do not. However, this appears to be have been fixed in IE 8.
Perhaps you should instead evaluate why you need the full path to the file as it was located on the client's system. I think it is really superfluous information that should never be posted at all. All you should be concerned with the is the file name so that you can save the file without making changes to the name.
Just to give my 2 cents.
At this moment I also DO get the full user's local path. It's only from 1 machine that I can replicate this issue, but it really does give the full path of the file at the machine of the user.
This is a end-user of our application which is hosted on a off-site server. So it's not on the local machine nor on a local server from which it might happen to be a share.
You can resolve the issue, at least to have the same behaviour all the time by this:
Path.GetFileName(fileUpload.FileName)
Btw, just found this article which states it can happen too: http://www.eggheadcafe.com/community/aspnet/17/10092650/fileupload-control-pro.aspx
Just to confirm the issue.
I had sort of the opposite issue as the original poster: I was getting the full path when I only wanted the filename. I used Gabriël's solution to get just the filename, but in the process I discovered why you get the full path on some machines and not others.
Any computer joined to domain will give you back the full path for the filename. I tried this on several different computers with consistent results. I don't have an explanation for why, but at least in my testing it was consistent.
Check this:
<%# Page Language="VB" AutoEventWireup="false" CodeFile="FileUp.aspx.vb" Inherits="FileUp" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="Label1" runat="server"></asp:Label><br />
<asp:FileUpload ID="FileUpload1" runat="server" /><br />
<asp:Button ID="Button1" runat="server" Text="Upload" />
</div>
</form>
</body>
</html>
Code:
Partial Class FileUp
Inherits System.Web.UI.Page
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim path As String
Dim path1 As String
path = Server.MapPath("~/")
FileUpload1.SaveAs(path + FileUpload1.FileName)
path1 = path + FileUpload1.FileName
Label1.Text = path1
Response.Write("File Uploaded successfully")
End Sub
End Class
This dumps the file in your temp folder with file name, then after that you can call it and not worry about it. Because it will get deleted if it is in your temp folder for an amount of days.
string filename = Path.Combine(Path.GetTempPath(), Path.ChangeExtension(Guid.NewGuid().ToString(),".xls"));
File.WriteAllBytes(filename, FileUploadControl.FileBytes);
I'm using IE 8 (on two separate machines). Each still uploads the full local file path. As suggested by Gabriël, Path.GetFileName(fileUploadControl.PostedFile.FileName) appears to be the only way to ensure that you only get the filename.
Check this post under FileUpload Control
Additionally, the “Include local directory path when uploading files” URLAction has been set to "Disable" for the Internet Zone. This change prevents leakage of potentially sensitive local file-system information to the Internet. For instance, rather than submitting the full path C:\users\ericlaw\documents\secret\image.png, Internet Explorer 8 will now submit only the filename image.png.
Its an option under Internet security that can be enabled
dim path as string = FileUpload1.PostedFile.FileName
By the way, I am using Visual Studio 2010. I don't know if there is a difference with the other version.
This will not problem if we use IE browser.
This is for other browsers, save file on another location and use that path.
if (FileUpload1.HasFile)
{
string fileName = FileUpload1.PostedFile.FileName;
string TempfileLocation = #"D:\uploadfiles\";
string FullPath = System.IO.Path.Combine(TempfileLocation, fileName);
FileUpload1.SaveAs(FullPath);
Response.Write(FullPath);
}
Thank you
You can't get full path of a file at client's machine. Your code might work at localhost because your client and the server is the same machine and the file is at the root directory. But if you run it on a remote machine you will get an exception.
On Internet Explorer Options, on security tab click on custom security button, there have an option to send the local path when loading some file to server.
Disabled as default. Just enable it.
Path.GetFullPath(fileUpload.PostedFile.FileName);
Sorry this 'll get your program file directory + your file name.
In firefox i do get the file name (not the full path from where the file is uploaded) using fileuploadID.postedfile.filename. But the same thing retrieves full path (from where the file is uploaded) in IE.
Any one please tell me how to get the filename browser compatibly.
Firefox by default sends only the filename. But that should be enough to get the name. Once you get the name, it is enough for you, because it is already uploaded to the temp folder (location is unimportant). Once you have the filename handle, you can copy it wherever. Alternatively, you can use Path.GetFileName(filename) that should get you the same results in both the browsers....
http://msdn.microsoft.com/en-us/library/system.io.path.getfilename.aspx
I wrote some code to upload files to amazon S3, if I put a full file path manually It successfully uploads the file from my computer. What I'm trying to do is use a file upload control and store the full path in a variable so that I can use it for my amazon method. Ive read everywhere it seems that the browser won't let you get the full file path for security reasons.
How can I get the full file path? Should I just store the files on my webserver and point my amazon method to the server path, and then use the file upload control to tell it what the filename is? I wish I could just do a straight shot to amazon...
First we have to save the file path and then we take it from
string filepath=Path.GetFullPath(UploadFile1.FileName.toString());
I came across this link which has a great tutorial and even gives you a working sample project. (this is different from the code that the .net SDK includes...) http://aws.amazon.com/articles/774?_encoding=UTF8&jiveRedirect=1
We can't take full path in HTML or JS as it violets security so whenever you try to see the path it shows fakepath
so to resolve this issue you can make a seprate folder and you can store the uploaded file there and in the code you can take that folders path as default and use it as a absolute path.
You can get the full path using Python Tkinter but it is limited for desktop app.