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Check FTP delete permission without trying to delete a file

I have to check whether an FTP Server allows me to delete a file or not. Without deleting an existing file or sending a file and trying to delete that file.
For now, I use the 'Send a file and try to Delete it' dummy solution, but sometimes I don't have write permission.
I tried the code below using Chilkat library, but as I know, there are only Read, Write and Execute attributes, and the Delete attribute doesn't exist.
var ftp = new Chilkat.Ftp2();
ftp.Hostname = "127.0.0.1";
ftp.Username = "test";
ftp.Password = "test";
ftp.AuthTls = false;
ftp.PassiveUseHostAddr = true;
ftp.Connect();
// To get file permissions in UNIX format, disallow MSLD:
ftp.AllowMlsd = false;
if (ftp.GetDirCount() > 0)
{
textBox1.AppendText("The permissions format is: " + ftp.GetPermType(0));
textBox1.AppendText("\r\n");
}
for(var i = 0; i < ftp.GetDirCount();++i)
{
// Display the permissions and filename
textBox1.AppendText(ftp.GetPermissions(i) + " " + ftp.GetFilename(i));
textBox1.AppendText("\r\n");
}
ftp.Disconnect();
So, according to my explanation above, Is it possible to determine whether the FTP server has Delete File permission or not? If yes,

There's no API in FTP protocol to test for permissions.
You can try to interpret the permissions you get from the FTP directory listing.
But for example on *nix systems, the listing never gives you enough information for such decision.
Btw, on *nix servers, you have permissions to delete a file, if you have write permissions to its parent directory. What is the same permissions for for creating a new file. So normally, if you can create a file, you can delete a file. But FTP servers commonly impose another permissions on top of the system permissions. And those usually include separate permissions for creating and deleting files.

Attaching auto generated pdf to email in asp.net app

I have a very specific requirement. In my web app, I have to generate a pdf invoice from the database values, and an email body. I can easily send this using SMTP which works perfect.
But, problem is we can't rely on system to always be perfect, and this is an invoice. So, we need to open the default mail client instead of using SMTP. Right now, I have following code
//Code to create the script for email
string emailJS = "";
emailJS += "window.open('mailto:testmail#gmail.com?body=Test Mail" + "&attachment=" + emailAttachment + "');";
//Register the script for post back
ClientScript.RegisterStartupScript(this.GetType(), "mailTo", emailJS, true);
This opens the email perfectly, but no attachment is working. Path is supposed to be /Web/Temp/123.pdf.
If I use the same path as normal url like below, it opens the file in new window properly.
ClientScript.RegisterStartupScript(this.GetType(), "newWindow", "window.open('/Web/Temp/123.pdf');", true);
So, clearly file exists, but it exists on the server. Outlook on the other hand open on client machine. So, I can't use the full determined path like C:\Web\Temp\123.pdf. If I try that, it will try to find the file on client machine, where the folder itself might not exist.
I am trying to figure out what can I do here. If there is another method I should try.
P.S. No, I can't send the email directly. That will cause a hell lot more problem in future for me.
Edit:
I also found one weird problem. If I add a double quote to the file path in attachment, a \ is added automatically. #"&attachment=""" + Server.MapPath(emailAttachment) + #"""');" gives me output as &attachment=\"C:\Web\Temp\123.pdf\".
I am trying to escape that double quote and somehow it adds that slash. I know this is a completely different problem, but thought I should mention here, instead of creating a new question.
Edit:
I tried a fixed path on localhost. So, I am basically testing the app on the same machine where file is getting stored. still, no attachment at all.
string emailJS = "";
emailJS += #"window.open('mailto:jitendragarg#gmail.com?body=Test Mail" + emailAttachment + #"&attachment=";
emailJS += #"""D:\Dev\CSMS\CSMSWeb\Temp\635966781817446275.Pdf""');";
//emailJS += Server.MapPath(emailAttachment) + #"');";
//Register the script for post back
ClientScript.RegisterStartupScript(this.GetType(), "mailTo", emailJS, true);
Updated the path to make sure it is proper. Now, it just throws error saying command line argument not valid.
Edit:
Is there any other method I can try? I have the file path on the server side. Maybe I can download the file automatically to some default folder on client machine and open from there? Is that possible?
Edit: I tried one more option.
emailJS += #"mailto:testmail#gmail.com?body=Test Mail" + #"&attachment=";
emailJS += #"\\localhost\CSMSWeb\Temp\635966781817446275.Pdf";
//emailJS += Server.MapPath(emailAttachment) + #"');";
Process.Start(emailJS);
The Process.Start line works but it does nothing at all. There is no process that starts, no error either.
Edit:
yay. I finally got the user to approve using a separate form to display the subject and body, instead of opening the default mail client. although, I would still prefer to solve this problem as is.

So, the problem here is the fact that mailto only supports direct file path for attachment. That is, path has to be local to use machine, or intranet path within the network.
In other words, path like http://yourapp/Web/Temp/123.pdf won't work, and /Web/Temp/123.pdf being essentially the same won't work either. These are not paths, but links to files that has to be downloaded and stored locally before they can be used as attachments - mailto protocol has no support for that.
However, since your application is intranet, what you could do is make sure intended users have access to some network shared folder on your server, and then provide them with network path to the file, that is \\theserver\files\123.pdf

trying to upload a file to Ftp but getting the error: "file name not allowed"!

So I was trying to upload a 1kb text file to my ftp server but this error comes up:
The remote server returned an error: (553) File name not allowed.
so what's wrong with my code?
WebClient upload = new WebClient();
upload.Credentials = new NetworkCredential("******", "*********");
upload.UploadFile("ftp://xxx.com/public_html", "G:/adress.txt");

It's hard to tell, because it's a server error not a code error. However, as currently written, you're trying to upload the file called adress.txt to become a file named public_html. I suspect there's already a directory with that name, and the conflict is preventing the upload. Try
upload.UploadFile("ftp://xxx.com/public_html/adress.txt", "G:/adress.txt");
instead.

This might not apply to you, but if it is a Linux FTP server:
This may help for Linux FTP server.
So, Linux FTP servers unlike IIS don't have common FTP root directory.
Instead, when you log on to FTP server under some user's credentials,
this user's root directory is used. So FTP directory hierarchy starts
from /root/ for root user and from /home/username for others.
So, if you need to query a file not relative to user account home
directory, but relative to file system root, add an extra / after
server name. Resulting URL will look like:
ftp://servername.net//var/lalala
Instead of:
ftp://xxx.com/public_html
You would need a second slash after the server name in addition to the full file name:
ftp://xxx.com//public_html/adress.txt
I ran into this same issue and it fixed it for me.
Source:
Can't connect to FTP: (553) File name not allowed

Upload images acces to path denied

Hi I seem to be having a problem when uploading images in asp.net.When I tryed to upload an Image I get this error:
Access to the path 'D:\Projects IDE\Visual Studio\MyWork\Websites\Forum\Images\avatar\userAvatars\aleczandru' is denied.
I have set application pools Identoty to NETWORKSERVICE ando also added the NETWORK SERVICE account to the Images folder with full permision but I still get the same error.
This is my code:
private void addImageToApp()
{
string path = "~/Images/avatar/userAvatars/" + User.Identity.Name;
createPath(path);
if( Directory.Exists(HostingEnvironment.MapPath(path)))
{
//try {
UploadImage.SaveAs(HostingEnvironment.MapPath(path));
// MultiViewIndex.ActiveViewIndex = 0;
//}catch(Exception ex)
//{
// AvatarDetails.Text = ex.Message;
//}
}
}
private void createPath(string path)
{
string activeDir = HostingEnvironment.MapPath("~/Images/avatar/userAvatars");
if( !Directory.Exists(Server.MapPath(path)) )
{
string newPath = Path.Combine(activeDir, User.Identity.Name);
Directory.CreateDirectory(newPath);
}
}
What else can I do to solve this problem?
EDIT
Hi at this point I have full permision control to the following USERS:
Authetificated Users
IUSR
SYSTEM
NETWORK SERVICE
IIS_WPG
Administrator
USers
Is it posible that I need to set any configuration to IIS in order for this to work?
EDIT
I have messed around with SQL-SERVER for the last couple of days in order to make this work so I might have missconfigured something form what I understand NETWORK SERVICE is stored in SQL-SERVER master.db database.I seem to be having two network service logins may this be the problem?I remember when I first checked it I had none now I have two:
EDIT
This is the print with the permisions I added to the folder:
EDIT : Complete error
StackTrace:

In method CreatePath you are creating folder 'D:\Projects IDE\Visual Studio\MyWork\Websites\Forum\Images\avatar\userAvatars\aleczandru'.
Then, you try to save the uploaded image with the filename 'D:\Projects IDE\Visual Studio\MyWork\Websites\Forum\Images\avatar\userAvatars\aleczandru'.
You can't have a folder and a file with the same name. If you try to do this, the OS will tell you access is denied.
I suppose you want to either create a filename inside folder aleczandru, or you meant to save the file as aleczandru.png or something in folder userAvatars.
Assuming your UploadImage is a FileUpload control, you can save the file to the user's folder using the original file name of the uploaded file.
UploadImage.SaveAs(HostingEnvironment.MapPath(
Path.Combine(path, UploadImage.FileName)));

Pls make sure you have full filename with file extention in you path.

Ok... I have done this before for a project to implement a PUT method for http. I dont clearly remember it.. but some hints... if I were in my office I could tell you correctly. here are the hints
You need to add IIS_IUSRS to have access to the folder in windows.
Go to IIS admin console click the deployed site node, and set the permission for the same folder/website requests coming in... I dont remember the which category was it.. that settings pane will allow you to add/modify permissions for POST, GET and other verbs for that matter... when you edit that, you should see options for Administrator, a particular user account, anonymous etc.
may be I will write back tomorrow... exactly how to do it :-)

Try to give the group called users the permission to modify this directory (under security)

You need to find out what user the asp.net upload page is running under. If you haven't changed it, and are not running under impersonation, it should default to the ASPNET user on the local machine. Whatever it turns out to be, give that user read/write permissions on the folder.

Access denied to path , when uploading image to folder in server

Am getting error when you are going to upload the file on specified folder in the server. Here I am going to upload P6100083.jpg in storeimg folder. When I am going to upload I am getting the following error:
Access to the path 'C:\inetpub\vhosts\bookmygroups.com\httpdocs\storeimg\P6100083.jpg' is denied.
Can anyone help me... How to use permisiion and were to use...
My code is while uploading image
if (FileUpload1.HasFile)
{
float fileSize = FileUpload1.PostedFile.ContentLength;
float floatConverttoKB = fileSize / 1024;
float floatConverttoMB = floatConverttoKB / 1024;
string DirName = "storeimg";
string savepath = Server.MapPath(DirName + "/");
DirectoryInfo dir = new DirectoryInfo(savepath);
// string savepath = "C:\\Documents and Settings\\ssis3\\My Documents\\Visual Studio 2005\\WebSites\\finalbookgroups\\" + DirName + "\\";
if (fileSize < 4194304)
{
string filename = Server.HtmlEncode(FileUpload1.FileName);
string extension = System.IO.Path.GetExtension(filename).ToUpper();
if (extension.Equals(".jpg") || extension.Equals(".JPG") || extension.Equals(".JPEG") || extension.Equals(".GIF"))
{
savepath += filename;
FileUpload1.SaveAs(savepath);
}
}
}
Thanks in advance

I have no success making my upload or any write operation on filesystem work on IIS7.
Still getting the error: Access to the path is denied.
My AppPool is running under Network Service. I have granted all kinds of accounts Full Control (Network Service, Network, IIS_IUSR, Administrator, Users, Everyone), restarted the webservice several times, studied all IIS7 settings, googled for two hours and nothing works.
IIS7 and WS2008 s-u-c-k-s. Sorry for the term. Anybody can help?
I just wanted to add: I noticed that in the upload's destination folder's Properties there's this checkbox named "Read-only (Only applies to files in folder)" and it's checked. It cannot be unchecked, comes back checked after unchecking and clicking the OK button. Is that IIS7 guarding it?
Editing this message to add the SOLUTION: My admin has turned off the silly UAC "the security confirmation feature" on our server, restarted the machine and it works now. No "write" access rights for "Network Service" or any other IIS-used account was needed. When accessing the file system in a ASP.NET web application using the integrated authentication and having the impersonation set to true in its web.confing, the file system seems to be accessed by the authentified end-user's account, not by the Network Service account which the AppPool is running under. (Many people tell you to set Network Service permissions, but that is not true.) So you need to set the "write" permissions for your end-users (usually domain users: "DOMAIN\domain users") on your particular folder.
Oh yea, and the "Read-only (Only applies to files in folder)" checkbox mentioned above does not seem to have any effect. However Microsoft says "some programs might have problems writing to such folder and you should use command line statement "attrib -r -s" to get rid of the Read-Only attribute" -- but it won't work. It will stay there checked-grayed. But don't worry about that. Microsoft becomes more and more silly every day.

Indead, it's a server issue.
You need to verify if the user underlying your application pool has write access to the directory.
If you use IIS7, you have a new feature that helps you give custom write to this user and dun need to change the user.
Look at this link:
http://www.adopenstatic.com/cs/blogs/ken/archive/2008/01/29/15759.aspx
Hope this helps.

This is a server issue. Make sure you have the necessary rights to write files.
Btw, since you call ToUpper() on extension there's no reason to test for ".jpg".

If you are using Plesk Panel, go to file manager of Plesk Panel. List files and folders inside "httpdocs". Each file and folder has a lock icon at the very right. Click that of "storeimg" folder to change permissions. Click advenced button. Give full permission to these:
Plesk IIS WP User (IWPD_214(your_login_name))
Plesk IIS WP User (IWPD_214(your_login_name))
And click OK.

First you check the permission is enable or not if not then go to that folder which folder has to be use for containing files then right click on folder then there will be display folder properties then click on security there will be display multiple number of user which user have to be permit then click allow that all permission will be activated.

First, make sure your code runs fine locally (I assume that something you've already done).
Then deploy to your TEST or UAT environment. If you're having issue there, then this is a configuration issue. Make sure the service account under which your website's app pool is running has access to the folder.
Please make use of C# method Path.Combine() to build up your path and avoid issues with leading or trailing / and \.