create file on web server

Dell Boy · 25-04-2003 4:27pm #1

I want to create a file on an iis webserver using javascript. am i correct in stating the filesystemobject will only work on the local filesystem (PC). what do i need to use to create on the web?

25-04-2003 6:48pm

You'll need to use some kind of server side porgamming.

Common technques are PHP, CGI & ASP.

Now off to google with you. (:

- Kevin

Dell Boy · 25-04-2003 7:03pm

Server side programming, really. I never would have thought of that.

Still waiting for some useful advice.......

25-04-2003 9:28pm

Well when you ask can you do it with javascript and don't actually grasp the english language you come quite clueless.

Ask intelligent questions and get intelligent answers.

You ungrateful git...

Enygma · 26-04-2003 1:23am

p actually gave you some useful advice, why not follow it.

Off to google with you.

Seth Brundle · 26-04-2003 8:03am

have a look at aspin.com or search google

FreeHost · 26-04-2003 11:16am

There are two questions with FileSystemObject

1. Do you want to use it in a web application
2. Do you want to use it on a web page

If you want to use it on a web page, it will work OK, but your going to run into problems.

First, anybody who visits that page will get a warning message, telling them it's insecure, they must answer "Yes" or "No"

Secondly, if they say "yes" there anti-virus software will start giving them warnings.

I have attached a file with a bit of code I grabbed from the microsoft site. Save the file to your local system and rename it test.html, then run it in your browser and you'll see what I'm talking about.

If your using it in a web application, well that's a different story. What do you want it to interrogate or write

Dell Boy · 28-04-2003 2:52pm

P: as regards grasping the english language, let me state that english isn't my first language. Also your own grasp of the english language doesn't seem to be that firm <QUOTE> you come quite clueless </QUOTE>

I thought the question clear enough, as did FreeHost, who actually provided some useful advice. Many thanks.

FreeHost, I cannot see that attachment. However I now have my code running on the webserver and I get no security / a.v. errors. Could you post it again, so I can see if i need to check security settings?

dahamsta · 28-04-2003 4:14pm

Sorry boys and girls, but Dell Boy's right and you're wrong. Javascript is most commonly used as a client-side scripting language, but it can also be used for server-side programming if necessary. Has been for years in fact.

Off to Google with you, smartarses.

adam

FreeHost · 28-04-2003 4:15pm

Yes I see it didn't attach,I cant seem to attach so copy and past this

************************************************

<%@LANGUAGE="JAVASCRIPT" CODEPAGE="1252"%>
<html>
<head>
<title>Test</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>

<body>
<script language="JavaScript" type="text/JavaScript">
var fso = new ActiveXObject("Scripting.FileSystemObject");
var a = fso.CreateTextFile("c:\\testfile.txt", true);
a.WriteLine("This is a test.");
a.Close();
</script>
</body>
</html>

**************************************************

Dell Boy · 28-04-2003 4:58pm

Freehost,
I can see where you might get security errors, you may not have privilege to write to the root of the c drive. I used server.mappath() in the createtextfile call which pulls up the full physical path to my virtual directory (if that makes sense) and it seems to work fine and creates a file in a subdirectory of the site.
Thanks anyway.

I wonder who or what runs the javascript. Is it the IISUSR with limited privileges, a system account with full RWX or what? I'm a bit unclear about client side / server side and what runs where

If i try to create a file in c:\\ i just get an error. my hosting provider obviously doesn't allow such carry on, but I can create files fine in my own virtual folders.

The Corinthian · 28-04-2003 5:19pm

There are two components to uploading from a browser to a server. First of all we have our server-side component, which is in essence a HTML form which will send the necessary data using HTTP post, encoded so that the server will know that it’s going to receive multiple items in the form data and to the script that will of course handle it (which I’ve called ‘foobar’ below):

<form method="POST" enctype="multipart/form-data" action="foobar">

Attaching files to a HTML form is done using an input tag with with the type attribute set to “file”.

Receiving the file at the server varies somewhat from platform to platform and from to language to language but it all works on the same principle of reading the data and either writing it to a directory on the server using the FileSystem Object, or directly to a database (typically as a blob data type).

I recommend Googling at this stage for further details, as I’ve no intension of explaining how exactly it’s done in every language (or the ones I know).

A final note is to remember when reading/writing data using the Win32 FileSystem Object, that it treats binary and text data differently. In the case of *nix, this is not an issue.

HTH

FreeHost · 28-04-2003 5:19pm

Dell Boy
Unlike some other languages, JavaScript is compiled on the local machine, there is a built in engine called Microsoft Virtual Machine in Internet Explorer, which creates the runtime environment for JavaScript to work on a local machine.

I have come across many examples of this where people in a company cannot see certain elements on a web page, the network manager probably done a bare minimum browser install, and left VM out. When they download and install VM it works perfectly.

If you want Java to run server side, your provider would need to install something like Tomcat. When you FTP into your account does it have a directory called “WEB-INF” if you have, then Tomcat is running on that server. Here you can compile your java files into .class files and call them with JSP pages.

create file on web server

Comments