Will data traffic go through the host application program or will be dealt remotely in scenarios where C#'s File.Copy is used:
File.Copy(#"\\SERVER13\LOL\ROFL.txt", #"\\SERVER13\ROFL.txt")
Cheers n thx!
First of all you have a small bug in the path of the destination file.
Second, there are no remote copy operation. There exist a remote move operation (rename, but with a destination in other directory) like MoveFile (see native API http://msdn.microsoft.com/en-us/library/aa365239%28VS.85%29.aspx).
UPDATED: Probably you came from unix and knows utility rcp, but it works with respect of remote shell service (rshd) and not with respect of direct file system features. You can also use PsExec utility from SysInternals (see http://technet.microsoft.com/en-us/sysinternals/bb897553.aspx) to start some program on the remote computer, but all this is not a subject of programming.
It will go through the local application. The file system does not know what the application is going to do with the bytes it reads from the share, or where the bytes that are written to the share come from.
In addition, the application does not know (in the case of DFS) if the two shares are on the same machine.
If you want to let the server handle it, you have to remotely run a copy program.
Related
I have been working on project recently where eventually I need two (or more) applications on different machines to be able to access the same file on one of them without uploading it to a server first.
Thus, the best idea I could get was to create something like a mini-temporary file server where the desired file path is streamed over the ip address and the other machine can access it via a URL like that "http://xxx.xxx.xxx.xxx/path/file.ext".
I have a good experience with C# but this approach... I never stepped into before, so any help is appreciated either in achieving this approach or any other method that can lead to allowing cross-internet access to a file on a machine.
Thanks in advance.
[Edit]
This operation has to be done without prior port forwarding, I don't know if this is possible, but I guess if it is not then I might need to do something like streaming to a php server first or something, again any help is appreciated.
Set up a virtual directory pointing to a local directory in IIS.
Application A writes file to local directory.
Application B reads
file from http.
Otherwise, you could use a network drive for both applications to read/write from.
Often times a program requires a file that happens to be on a network location. Take for instance Outlook. If I where to place an outlooks database (.pst file) in a network location then windows will make that "transparent" to the user and outlook will still be able to work. Another example could be quickbooks and many more. (as long as you have permissions to write and read)
For this example let's use Microsoft Word. If I would want to open a file in some other computer in the network I would be able to navigate to it as:
and open the file that I want because we are on the same network.
Now my question is how will I be able to simulate that? I want to have a virtual directory on the internet where I can place lets say my .pst file and then select it from windows explorer as:
(this example obviously does not work)
Will it be possible to do that? I believe windows uses a tcp connection with the host computer and then the host responds with he files that it shares. I will like to implement a program that does that so that I could avoid having to create a vpn. Also it will be nice if I could have my pst (outlook database file) on the internet so that all my computers open the same outlook database.
Note my purpose of this question is to open an outlook database file on a network location. I will like to be able to select a file on the internet from windows open file dialog. Also in todays world everything pretty much exists. I will like to create it lol
Windows provides a network redirector for CIFS (Common Internet File System, formerly SMB Server Message Block) resources. Writing a CIFS server is the easiest approach.
But you can also use one of the other existing redirectors, such as NFS, WebDAV, or Netware. And it's also possible to write new redirectors (though that requires kernel mode code, there are some development kits that provide the kernel code for you, similar to a Linux FUSE filesystem).
If you want to avoid writing code, WebDAV over HTTPS will provide you secure access (no need for a VPN layer) and software already exists.
It depends on how the server on the internet is set up to make its files available. Most often tcpip is not the protocol used for this - it is FTP, SFTP, HTTP or something similar. I believe Windows Explorer uses RPC calls over a local network to accomplish this. I don't think you will be able to use the Open File Dialog, you will have to write something similar that works over the protocol you need to use.
I have a program in C# which i can move and copy files and directories by compress or by not compress between two path in a computer, but i want to do this between two computer. I want to use as target path of other computer's driver. How can i do this?
Thanks for your helps,
Theres a couple of ways you could do this,
Setup a FTP Server on the other side using a FTP component
Directly connect to the other machine using a UNC Path
Use a SCP style system if the machine is a unix box
Setup a file transfer protocol of your own (ie send a bytestream over the network).
I would strongly recommend using a pre-existing protocol though, such as FTP, that way you can re-use libraries and it promotes inter-op with other programs.
I need to write to a file present in Linux system having a Samba server from a windows system through C# code.
I am just in the stating phase of evaluation, so I don't have a linux system with samba server now to test my code.
I found 2 useful links which fits my scenario very much.
http://social.msdn.microsoft.com/Forums/en-US/csharpgeneral/thread/03bf0cf2-be80-43a4-870c-83727dee1c63
and
How to read shared file from Ubuntu/Samba using C#?
Now my problem is :
My C# application is not fixed at particular system. Its a desktop application which can be present in any system across domains. Do I need to pass 2 username/passwords ? 1 for unix system and 1 for windows(client) system? How do I do that through code?
If it is possible for you to configure your Linux as you like, then you can configure the SAMBA share so that it doesn't need a username or password at all. This has the drawback that anyone in the network can write and read your files.
If you use the UNC path of the samba share (eg \\IP-address\sharename) than you don't need to do anything special you can use the normal c# file system functions to access files by the UNC path.
How do I map an ftp share folder to a local drive using C#? Is there any class library available for this?
I need to achieve the same functionality as NetDrive(http://www.netdrive.net/) offers using FTP ?
Maybe you can leverage someone else's work and get a headstart. The makers of NetDrive for instance offer an SDK - not sure what that requires / costs, however. But it might be worth an inquiry, no?
And maybe, if you combine this approach to define a remote FTP site as a Windows network share, and then use this code in C# to mount a network share as a drive, you might get your job done :-)
It's a very tall order - if you actually want a local drive, e.g. X:\, to access an FTP site, you'd surely need to write a driver. Not an easy task.
If you want it to simply appear in Windows Explorer somewhere - you can use the shell extension as Marco's answer suggests. But don't expect to be able to treat it like a regular drive.
To create a virtual drive or a folder on existing drive and expose remote FTP server contents that way you need a filesystem driver. Or use can use our Callback File System (CBFS) product which lets you write the code in user-mode and includes a pre-created filesystem driver. CBFS includes a sample, SFTPDisk, that does exactly what you need, but with SFTP protocol (SFTP is not FTP but SSH File Transfer Protocol).
Note, that in FTP there's no function to upload a block to the middle of the existing file. This makes some file write operations trickier than with SFTP or local filesystem - you may need to cache the whole file and upload it asynchronously when it's closed by the client.
There's a project in C# to use an FTP folder as virtual drive -> http://amalgam.codeplex.com/ (it uses dokan).
There's a freeware program that does the same thing -> http://www.ferrobackup.com/ftpuse/