I'm trying to save an image to a folder in .NET C# but I get this exception:
Access to the path 'C:\inetpub\wwwroot\mysite\images\savehere' is denied.The error occured at mscorlib because at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, String msgPath, Boolean bFromProxy)
at System.IO.FileStream..ctor(String path, FileMode mode)
I gave full control to this folder (savehere) to network service and iis_iusrs, even gave full control to everyone but still getting this exception.
I tried to give access via explorer and via IIS manager, still no luck
I'm doing it on Windows server 2008 R2 and IIS 7.5, Who do I need to give access?
Access to the path 'C:\inetpub\wwwroot\mysite\images\savehere' is denied
Read the message carefully. You are trying to save to a file that has the same name as the directory. That cannot work, you can't overwrite a directory filled with files with a single new file. That would cause undiagnosable data loss, "Access to the path is denied" is the file system fighting back to prevent that from happening.
The exception message is not ideal, but it comes straight from the OS and they are cast in stone. The framework often adds extra checks to generate better messages, but this is an expensive test on a network. Perf is a feature too.
You need to use a name like 'C:\inetpub\wwwroot\mysite\images\savehere\mumble.jpg'. Consider Path.Combine() to reliably generate the path name.
You need to find out from the application pool for the website what is the identity it is running under (by default this is Application Pool Identity) and grant that the correct permissions.
I was having the same problem while trying to create a file on the server (actually a file that is a copy from a template).
Here's the complete error message:
{ERROR} 08/07/2012 22:15:58 - System.UnauthorizedAccessException: Access to the path 'C:\inetpub\wwwroot\SAvE\Templates\Cover.pdf' is denied.
I added a new folder called Templates inside the IIS app folder. One very important thing in my case is that I needed to give the Write (Gravar) permission for the IUSR user on that folder. You may also need to give Network Service and ASP.NET v$.# the same Write permission.
After doing this everything works as expected.
I had exactly the same problem.
The solution was that the file I was trying to access was readonly, as it was copied from a template file that was readonly.
<facepalm />
I got this problem when I try to save the file without set the file name.
Old Code
File.WriteAllBytes(#"E:\Folder", Convert.FromBase64String(Base64String));
Working Code
File.WriteAllBytes(#"E:\Folder\"+ fileName, Convert.FromBase64String(Base64String));
My problem was that I had to ask for Read access only:
FileStream fs = new FileStream(name, FileMode.Open, FileAccess.Read);
In my case, I'm trying to access a file that is set to be read-only
And I solved it by disabling read-only and I got it fixed!
Hope it can be helpful for someone experiencing a situation like me.
What Identity is your Application Pool for the Web application running as, to troubleshoot, try creating a new App Pool with say Network Service as its identity and make your web application use that new App Pool you created and see if the error persists.
The following tip isn't an answer to this thread's original question, but might help some other users who end up on this webpage, after making the same stupid mistake I just did...
I was attempting to get an ASP.Net FileUpload control to upload it's file to a network address which contained a "hidden share", namely:
\MyNetworkServer\c$\SomeDirectoryOrOther
I didn't understand it. If I ran the webpage in Debug mode in Visual Studio, it'd work fine. But when the project was deployed, and was running via an Application Pool user, it refused to find this network directory.
I had checked which user my IIS site was running under, gave this user full permissions to this directory on the "MyNetworkServer" server, etc etc, but nothing worked.
The reason (of course!) is that only Administrators are able to "see" these hidden drive shares.
My solution was simply to create a "normal" share to
\MyNetworkServer\SomeDirectoryOrOther
and this got rid of the "Access to the path... is denied" error. The FileUpload was able to successfully run the command
fileUpload.SaveAs(networkFilename);
Hope this helps some other users who make the same mistake I did !
Note also that if you're uploading large files (over 4Mb), then IIS7 requires that you modify the web.config file in two places. Click on this link to read what you need to do:
Uploading large files in ASP.Net
please add IIS_IUSERS full control permission to your folder.
you find this option from security tab in folder properties.
I Solved with this setting:
IIS > Application Pools > [your site] > Advanced Settings... >
Identity > Built-in accound > LocalSystem
My problem was something like that:
FileStream ms = new FileStream(path, FileMode.Open, FileAccess.ReadWrite);
but instead of using path I should use File.FullName...
I don't know if it's going to help anyone else, just passing my own experience with this erro given!
Change the setting from built-in account to custom account and enter the other server's username and password.
Keep the setting as integrated (instead of classic mode).
If you get this error while uploading files in Sub domain And working correct in your localhost, then follow below steps:
Solution:
Plesk Panel
Login to your Plesk Panel. Select Your Sub domain which is giving error.
Click on Hosting settings.
Select Additional write/modify permissions and Apply.
CPanel
I am not sure about options available in CPanel. But IF you give permission to directory (In CPanel it has to be decimal number like 777, 755) will resolve the error.
For more details refer here
Reason for Error:
Let's Assume FileUpload.SaveAs(Server.MapPath("~/uploads/" + *YOUR_FILENAME*)) will be your code to move your files to upload path.
Server.MapPath will give you physical path (Real Path) of directory. But your Sub domain may don't have permission for access physical path.
So, If you give permission for sub domain to access write/modify permission, it will resolve the issue.
you need to add access parameter with ReadWrite value as following
using (var stream = new FileStream(localPath, FileMode.Create, access : FileAccess.ReadWrite))
{
file.CopyTo(stream);
}
Make Directory savehere to be virtual directory and give read/write permission from control panel
Had a directory by the same name as the file i was trying to write, so people can look out for that as well.
I encountered this problem while developing on my local workstation.
After several unsuccessful iisreset invocations, I remedied this situation by rebooting my machine.
In retrospect, an open file handle may have been causing issues.
In my case I had to add a .NET Authorization Rule for the web site in IIS.
I added a rule to allow anonymous users.
I had the same problem but I fixed it by saving the file in a different location and then copying the file and pasting it in the location where I wanted it to be. I used the option to replace the the existing file and that did the trick for me. I know this is not the most efficient way but it works and takes less than 15 seconds.
Maybe it'il help you.
string tempDirectoryPath = #"C:\Users\HOPE\Desktop\Test Folder";
string zipFilePath = #"C:\Users\HOPE\Desktop\7za920.zip";
Directory.CreateDirectory(tempDirectoryPath);
ZipFile.ExtractToDirectory(zipFilePath, tempDirectoryPath);
I had a lot of trouble with this, specifically related to my code running locally but when I needed to run it on IIS it was throwing this error. I found that adding a check to my code and letting the application create the folder on the first run fixed the issue without having to mess with the folders authorizations.
something like this before you call your method that uses the folder
bool exists = System.IO.Directory.Exists("mypath");
if (!exists)
System.IO.Directory.CreateDirectory("mypath");
You can try to check if your web properties for the project didn't switch to IIS Express and change it back to IIS Local
Make sure you that your target in System.IO.Delete(string file) is a file which is existed.
Maybe there is a mistake in your code ;Like you don't pass the correct file name to the method , or your target is a folder. In these cases you'll see the : "access to the path is denied error".
I recently encountered the problem while trying to access a file that was passed through command-line parameters into my .Net Core application, It happened due to the fact that when the application is run under a "Open with" (System explorer context menu under a file) system menu, the currently active user may vary, and the user didn't have the access right to my external drive that I was trying to open a file from.
It took me like 3-4 hours to understand and I solved it by setting the security settings for the folder that contained the file.
For Windows 10 x64 :
Just use Properties -> Security -> Users and Groups -> Change.. -> Add -> Additional -> Search -> <your windows account name> -> OK -> OK -> Set full access for your current account. Also make sure that the file is "unblocked" in properties.
I created a virtual dir with full permission and added the ffmpeg source and video files there, so finally it made sense as it can be acess by anyone.
I have an issue with a program that I’m running on one of my work machines.
Treesize pro is a program that will scan an area (C:\, \\nasdrive\home, etc.) and give you a tree-view as well as other information on the area.
now I run this program on an account that has admin privileges and when I lunch it give the user account control pop up.
However if I search an area my admin account does not have access to (there are a few) it will work fine and show me all the info for the files, folder, size, modified and creation dates. I cannot open the files but I can see their names and go into subfolders. If I try this in explorer, I will get access denied.
I tried to do this with a script that I wrote it C# however if I try and do a Directory.getDirectories(); and Directory.GetFiles(); but even if I run my program as admin (right click run as admin) it will just give access denied command in the Catch block.
I really would like to know how Treesize is managing to list folders, sub-folders, and files that my account does not have access to.
Thanks
TreeSize reads the data through the NTFS backup API (see https://learn.microsoft.com/en-us/windows/security/threat-protection/security-policy-settings/back-up-files-and-directories ).
From the notes from treesize:
https://manuals.jam-software.de/treesize/EN/notesonntfs.html
Access Control Lists
The way users can access files and folders can be restricted. One can grant or deny other users or groups certain rights [...]. That way one can even deny administrators to access files and folders. If an administrator tries to access a folder in the Windows Explorer to which the owner denied any other users reading access, an "Access Denied" error message will be displayed. However, TreeSize is able to scan such folders, if you are logged in as administrator or as a user that has the right to perform backups (This option can be changed at "Control Panel > Administrative Tools > Local Security Policy" and with the user editor of Windows).
An in-depth look into the access rights can be found in https://learn.microsoft.com/en-us/windows/win32/fileio/file-security-and-access-rights
The SE_BACKUP_NAME and SE_RESTORE_NAME access privileges were specifically created to provide this ability to backup applications. If these privileges have been granted and enabled in the access token of the backup application process, it can then call CreateFile to open your file or directory for backup, specifying the standard READ_CONTROL access right as the value of the dwDesiredAccess parameter. However, to identify the calling process as a backup process, the call to CreateFile must include the FILE_FLAG_BACKUP_SEMANTICS flag in the dwFlagsAndAttributes parameter. This will allow the backup application process to open your file and override the standard security checking.
HANDLE hFile = CreateFile( fileName, // lpFileName
READ_CONTROL, // dwDesiredAccess
0, // dwShareMode
NULL, // lpSecurityAttributes
OPEN_EXISTING, // dwCreationDisposition
FILE_FLAG_BACKUP_SEMANTICS, // dwFlagsAndAttributes
NULL ); // hTemplateFile
You can find more information on
https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-backupread
https://learn.microsoft.com/en-us/windows/win32/backup/creating-a-backup-application
Ok so I believe I am doing something very easy here. I have written an ASP.NET web page and it is just trying to write to the local directory.
I am using the following code:
System.IO.File.WriteAllLines("log.txt", messages);
I am throwing the following exception.
Access to the path 'c:\windows\system32\inetsrv\log.txt' is denied.
My ASP.NET application sits in the following directory.
c:\inetpub\wwwroot\sites\mysite\
So I am confused as to why it is trying to write to c:\windows\system32\inetsrv\ directory when I am not supplying that directory itself.
I have tried changing the code to the following but it gives me the same error message with a new directory.
System.IO.File.WriteAllLines("c:\\inetpub\\wwwroot\\sites\mysite\log.txt", messages);
Edit 1
It was hard to accept an answer on this because everyone really helped me out a ton. I accepted tom_yes_tom's answer because he was the first to post his response which was the first half of my problem. The other half of my problem was related to hbrock's solution that Fabio pointed out.
Create the folder "C:\inetpub\wwwroot\sites\mysite\App_Data" and save your data there instead.
System.IO.File.WriteAllLines(Server.MapPath("~/App_Data/log.txt"))
If you absolutely must save it to the mysite directory, be aware of security ramifications of putting a log file there and set directory permissions appropriately. The user that IIS is running under needs to be able to read and write that directory.
Full qualifying path: System.Web.HttpContext.Current.Server
You're receiving "Access to the path 'c:\windows\system32\inetsrv\log.txt' is denied." when you execute System.IO.File.WriteAllLines("log.txt", messages) because c:\windows\system32\inetsrv is the directory where the IIS executable is located (w3wp.exe).
You have to use Server.MapPath so it gives you the physical path of your virtual directory.
Look which user is running your virtual directory's application pool, and give him write permissions on the folder of your virtual directory.
This should help:
To grant read, write, and modify permissions to a specific file
In Windows Explorer, locate and select the required file.
Right-click the file, and then click Properties.
In the Properties dialog box, click the Security tab.
On the Security tab, examine the list of users. If the Network Service account is not listed, add it.
In the Properties dialog box, click the Network Service user name, and in the Permissions for NETWORK SERVICE section, select the Read, Write, and Modify permissions.
Click Apply, and then click OK
information from: http://msdn.microsoft.com/en-us/library/ff647402.aspx#paght000015_fileaccess
I have a text box and a button in a form.i want to save a file into the network path entered in the textbox while clicking the button. i tried the code given below.
private void button1_Click(object sender, EventArgs e)
{
string destinationPath = txtFilePath.Text.ToString();
string sourceFile = #"c:\1.txt";
string fileName = Path.GetFileName(sourceFile);
System.IO.File.Copy(sourceFile, Path.Combine(destinationPath, fileName));
}
it works fine if the destination provided the permission to change content. If the destination is 'read only' then it gives the error. if the input is \192.168.0.24\aqm , then it shows the error shown below (the path do not have write permission)
Access to the path '\192.168.0.24\aqm\1.txt' is denied.
is there anyway to solve this. i mean, if the destination is read only, then it prompt username and password of that system , if username password entered correct, then save the file to that directory . the user knows the username and password of all the computers in the network. cant give write permission to every system casue of some security reason. thats why i am looking for a method i suggested above
or any other ways??
Hope someone help me
I can suggest you to another way. If it possible, make a Windows Service. Set Service Log On to account which ahve Admin permissions. Make your copy process with Windows Service. I am using this algorithm in one of my projects. It works great, if the service logs in with Admin credentials. The computer have Windows Service with Admin Credentials can easly copy a file on any network machine. For ex, put a System Timer in your service. Let the service checks a path every 5 minutes. If there is a file exist in the given path, take file and copy to network machine by giving path.
You can ask the user for a username and password, then pass those to a function like WNetAddConnection3 (see http://www.pinvoke.net/default.aspx/mpr/WNetAddConnection3.html for how to call it from C#).
I think if the destination is read only there is not much you can do other than notify the user that the file can not be saved because the dest is readonly.
I am trying to run a file watcher over some server path using windows service.
I am using my windows login credential to run the service, and am able to access this "someServerPath" from my login.
But when I do that from the FileSystemWatcher it throws:
The directory name \someServerPath is invalid" exception.
var fileWatcher = new FileSystemWatcher(GetServerPath())
{
NotifyFilter=(NotifyFilters.LastWrite|NotifyFilters.FileName),
EnableRaisingEvents=true,
IncludeSubdirectories=true
};
public static string GetServerPath()
{
return string.Format(#"\\{0}", FileServer1);
}
Can anyone please help me with this?
I have projects using the FileSystemWatcher object monitoring UNC paths without any issues.
My guess from looking at your code example may be that you are pointing the watcher at the root share of the server (//servername/) which may not be a valid file system share? I know it returns things like printers, scheduled tasks, etc. in windows explorer.
Try pointing the watcher to a share beneath the root - something like //servername/c$/ would be a good test example if you have remote administrative rights on the server.
With regards to the updated question, I agree that you probably need to specify a valid share, rather than just the remote server name.
[Update] Fixed previous question about the exception with this:
specify the name as #"\\someServerPath"
The \ is being escaped as a single \
When you prefix the string with an # symbol, it doesn't process the escape sequences.
I was just asked this question in regards to FileSystemWatcher code running as a service and the issue is permissions. I searched and found this question and answer but unfortunately none of the answers here solved the problem. Anyway, I just solved it, so I thought I would throw in the solution here for next guy who searches and find this question.
The drive was mapped as a logged in user but the service was running as LocalSystem. LocalSystem is a different account and does not have access to drives mapped by a user.
The fix is to either:
Authenticate first (I use a C# Class to establish a network connection with credentials)
Run your service as a user that has access to the share.
You can test LocalSystem authentication by using a LocalSystem command prompt, see How to open a command prompt running as Local System?
Even though this is already answered I thought I would put in my two cents worth becaus eyou can see this same error even if you supply valid paths.
You will get the same error when the process running the watcher does not have access to the remote share. This will happen if the watcher is in a service running under the System account and the share is created by a user. System does not have access to that share and wont recognize it, you will need to impersonate the user to get access to it.
although you can use a FileWatcher over the network, you will have to account for other factors, like disconnection of the network share. If your connection to the share is terminated (maintenance, lag, equipment reset, etc) you will no longer have a valid handle on the share in your filewatcher
You can't use directory watches over network shares, this is a limitation of the OS, not of .NET.